CN103033641A - Device and method for detecting rotation speed of non-contact steam turbine - Google Patents
Device and method for detecting rotation speed of non-contact steam turbine Download PDFInfo
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- CN103033641A CN103033641A CN2013100111917A CN201310011191A CN103033641A CN 103033641 A CN103033641 A CN 103033641A CN 2013100111917 A CN2013100111917 A CN 2013100111917A CN 201310011191 A CN201310011191 A CN 201310011191A CN 103033641 A CN103033641 A CN 103033641A
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Abstract
The invention discloses a device and method for detecting rotation speed of a non-contact steam turbine. The device comprises a steam turbine rotation speed detecting circuit module, a microprocessor module and a power supply management circuit module, wherein the steam turbine rotation speed detecting circuit module comprises a diffuse reflection optical fiber sensor, a pre-amplification circuit module and a photoelectric coupling circuit module; the diffuse reflection optical fiber sensor is mounted on a steam turbine shaft; an output end of the microprocessor module is connected with a first digital tube display circuit module, a second digital tube display circuit module and a logic level conversion circuit module; and an output end of the logic level conversion circuit module is connected with a D/A conversion circuit module and a V/I conversion circuit module in sequence; and the method comprises the following steps: (1) signal real-time collection and transmission, (2) signal analysis and processing, and (3) processing result display and transmission. The device and the method have the advantages of reasonable design, high detecting precision, high working reliability, long service life, good expandability, low realizing cost, strong practicability as well as convenient promotion and application.
Description
Technical field
The present invention relates to turbine speed detection technique field, especially relate to a kind of non-contact type turbine speed detector and method.
Background technology
In the fuel-burning power plant, the rotor speed of steam turbine is a very important operational factor, and its measurement is a major issue that faces in industrial circle and the scientific experiment always.The rotating speed of steam turbine is constantly to change in startup and stopped process, must carry out continuous monitoring and controlling to it.When steam turbine has an accident or gets rid of when loading, rotating speed just becomes important monitored parameter.The reliable rotating speed of continuous monitoring Turbo-generator Set is one of key condition that guarantees Turbo-generator Set safety, reliable, economical operation.At present, known steam turbine speed measuring device structure is by measure speed gears and internally-arranged type magnetosensitive, eddy current sensor forms, this speed measuring device easily is subject to the steam turbine axial expansion, vibration displacement and cisco unity malfunction, simultaneously owing to the narrower gap of tachogenerator and measure speed gears so that tachogenerator easily is worn causes the life-span that affects device, the existence of measure speed gears has also indirectly increased the volume of steam turbine, when sensor and the distant situation that can produce origin cause of formation weak output signal and can't work of measure speed gears, brought a lot of difficulties for staff's debugging and installation.Traditional sensor is expensive but also difficult maintenance and replacing when sensor breaks down not only.
Summary of the invention
Technical matters to be solved by this invention is for above-mentioned deficiency of the prior art, provides that a kind of reasonable, easy to install, anti-external interference ability simple in structure, novel in design is strong, accuracy of detection is high, functional reliability is high, the non-contact type turbine speed detector of long service life.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of non-contact type turbine speed detector, it is characterized in that: comprise that the signal that joins for the turbine speed testing circuit module that turbine speed is detected in real time with turbine speed testing circuit module and be used for turbine speed testing circuit module is detected carries out the microprocessor module that analyzing and processing obtains turbine speed, and be the electric power management circuit module of each electricity consumption module for power supply in the device, described turbine speed testing circuit module is by the fiber sensor that diffuses that joins successively, pre-amplification circuit module and photoelectric coupling circuit module composition, the described fiber sensor that diffuses is installed on the turbine shaft and for the displacement signal of the screw that detects in real time steam turbine and generator junction and with displacement signal and is converted to electric signal, the output terminal of described microprocessor module is connected to for the first digital pipe display circuit module that shows turbine speed, the logic level converting circuit module that is used for showing the second digital pipe display circuit module of turbine speed institute corresponding current size and is used for carrying out level conversion, the output terminal of described logic level converting circuit module is connected to the D/A change-over circuit module that converts voltage signal for the digital signal of the turbine speed institute corresponding current size that microprocessor module is exported to, and the output terminal of described D/A change-over circuit module is connected to for voltage signal being converted to the V/I change-over circuit module of current signal transfer to steam turbine DCS Distributed Control System (DCS).
Above-mentioned non-contact type turbine speed detector, it is characterized in that: described electric power management circuit module is by the 12V direct supply that joins successively, being used for 12 voltage transitions with the output of 12V direct supply and being the 5V power circuit of 5V and being used for the 5V voltage transitions is that the 3.3V power circuit of 3.3V consists of, the described fiber sensor that diffuses, pre-amplification circuit module and photoelectric coupling circuit module are all joined with described 12V direct supply, described the first digital pipe display circuit module, the second digital pipe display circuit module, the logic level converting circuit module, D/A change-over circuit module and V/I change-over circuit module are all joined with described 5V power circuit, described photoelectric coupling circuit module, microprocessor module and logic level converting circuit module are all joined with described 3.3V power circuit; Described 5V power circuit is by the 12V connection terminal DUAN2 that be used for to connect the 12V direct supply, chip 7805, and resistance R 3, light emitting diode D2, polar capacitor C8 and C10, and nonpolar capacitor C 9, C11, C12 and C13 consist of; The pin 1 of described chip 7805 and the power end of 12V connection terminal DUAN2, one end of the positive pole of polar capacitor C8 and nonpolar capacitor C 9 joins, the pin 3 of described chip 7805 and the positive pole of polar capacitor C10, one end of nonpolar capacitor C 11, one end of nonpolar capacitor C 12, one end of nonpolar capacitor C 13, one end of resistance R 3 joins and is the output terminal 5V of described 5V power circuit, the positive pole of the other end of described resistance R 3 and light emitting diode D2 joins, the pin 2 of described chip 7805, the earth terminal of 12V connection terminal DUAN2, the negative pole of polar capacitor C8, the other end of nonpolar capacitor C 9, the negative pole of polar capacitor C10, the other end of nonpolar capacitor C 11, the other end of nonpolar capacitor C 12, the equal ground connection of the negative pole of the other end of nonpolar capacitor C 13 and light emitting diode D2; Described 3.3V power circuit is by the 5V connection terminal DUAN1 that is used for connecting the 5V power circuit, chip ASM1117, light emitting diode D1, voltage stabilizing diode D3, resistance R 4, nonpolar capacitor C 5 and C7, and polar capacitor C4 and C6 formation, pin 1 ground connection of described chip ASM1117, the pin 3 of described chip ASM1117 and the negative pole of voltage stabilizing diode D3, one end of the positive pole of polar capacitor C4 and nonpolar capacitor C 5 joins, the power end of the positive pole of described voltage stabilizing diode D3 and described 5V connection terminal DUAN1 joins, the pin 2 of described chip ASM1117 and the positive pole of polar capacitor C6, one end of nonpolar capacitor C 7 an and end of resistance R 4 joins and be the output terminal 3.3V of 3.3V power circuit, the positive pole of the other end of described resistance R 4 and light emitting diode D1 joins, the earth terminal of described 5V connection terminal DUAN1, the negative pole of polar capacitor C4, the other end of nonpolar capacitor C 5, the negative pole of polar capacitor C6, the equal ground connection of the negative pole of the other end of nonpolar capacitor C 7 and light emitting diode D1.
Above-mentioned non-contact type turbine speed detector, it is characterized in that: described microprocessor module is made of single-chip microcomputer MSP430F149, resistance R 5, crystal oscillating circuit, reset circuit and jtag interface circuit, the pin 1 of described single-chip microcomputer MSP430F149 and pin 64 all join with the output terminal 3.3V of described 3.3V power circuit, and the pin 62 of described single-chip microcomputer MSP430F149 is by resistance R 5 ground connection; Described crystal oscillating circuit is by crystal oscillator Y1 and Y2, and nonpolar capacitor C 1 and C2 formation, the end of described crystal oscillator Y1 and the pin 8 of described single-chip microcomputer MSP430F149 join, the pin 9 of the other end of described crystal oscillator Y1 and described single-chip microcomputer MSP430F149 joins, one end of the end of described crystal oscillator Y2 and the pin 53 of described single-chip microcomputer MSP430F149 and nonpolar capacitor C 1 joins, the pin 52 of the other end of described crystal oscillator Y2 and described single-chip microcomputer MSP430F149 and an end of nonpolar capacitor C 2 join, the equal ground connection of the other end of the other end of described nonpolar capacitor C 1 and nonpolar capacitor C 2; Described reset circuit is made of button S1, nonpolar capacitor C 3 and resistance R 1 and R2, one end of the end of described button S1 and the pin 58 of described single-chip microcomputer MSP430F149, resistance R 1 and an end of nonpolar capacitor C 3 join, the output terminal 3.3V of the other end of described resistance R 1 and described 3.3V power circuit joins, one end of the other end of described button S1 and described resistance R 2 joins, the equal ground connection of the other end of the other end of described resistance R 2 and described nonpolar capacitor C 3; Described jtag interface circuit is made of jtag interface, the pin 7 of described jtag interface joins with the output terminal 3.3V of described 3.3V power circuit, the pin 9 of described jtag interface joins with the pin 58 of described single-chip microcomputer MSP430F149, the pin 10 of described jtag interface joins with the pin 63 of described single-chip microcomputer MSP430F149, the pin 11 of described jtag interface joins with the pin 57 of described single-chip microcomputer MSP430F149, the pin 12 of described jtag interface joins with the pin 56 of described single-chip microcomputer MSP430F149, the pin 13 of described jtag interface joins with the pin 55 of described single-chip microcomputer MSP430F149, and the pin 14 of described jtag interface joins with the pin 54 of described single-chip microcomputer MSP430F149.
Above-mentioned non-contact type turbine speed detector is characterized in that: described photoelectric coupling circuit module is used for connecting the tripod connector F1 of pre-amplification circuit module by chip P521, and resistance R 12 and R13 formation; The pin 2 of described tripod connector F1 joins with the signal output part of pre-amplification circuit, the pin 1 of described chip P521 joins with the pin 2 of tripod connector F1 and an end of resistance R 12, the pin 1 of the other end of described resistance R 12 and tripod connector F1 all joins with the 12V direct supply, the pin 3 equal ground connection of the pin 2 of described chip P521 and pin 3 and tripod connector F1, the pin 4 of described chip P521 joins with an end of resistance R 13 and the pin 12 of described single-chip microcomputer MSP430F149, and the output terminal 3.3V of the other end of described resistance R 13 and described 3.3V power circuit joins.
Above-mentioned non-contact type turbine speed detector, it is characterized in that: the input end of described microprocessor module is connected to the key circuit module for the input control parameter, described key circuit module is by button S2, S3, S4 and S5, and resistance R 22, R23, R24 and R25 consist of; One end of the end of described button S2 and the pin 20 of described single-chip microcomputer MSP430F149 and resistance R 22 joins, one end of the end of described button S3 and the pin 21 of described single-chip microcomputer MSP430F149 and resistance R 23 joins, one end of the end of described button S4 and the pin 22 of described single-chip microcomputer MSP430F149 and resistance R 24 joins, one end of the end of described button S5 and the pin 23 of described single-chip microcomputer MSP430F149 and resistance R 25 joins, the other end of described button S2, the other end of button S3, the equal ground connection of the other end of the other end of button S4 and button S5, the other end of described resistance R 22, the other end of resistance R 23, the other end of the other end of resistance R 24 and resistance R 25 all joins with the output terminal 3.3V of described 3.3V power circuit.
Above-mentioned non-contact type turbine speed detector and method, it is characterized in that: described logic level converting circuit module is made of the first chip 74LVC4245-1 and the second chip 74LVC4245-2, the pin 1 of described the first chip 74LVC4245-1 and pin 2 all join with the output terminal 5V of described 5V power circuit, the pin 23 of described the first chip 74LVC4245-1 and pin 24 all join with the output terminal 3.3V of described 3.3V power circuit, the pin 14～21 of described the first chip 74LVC4245-1 respectively corresponding pin 51～44 with described single-chip microcomputer MSP430F149 joins the pin 11 of described the first chip 74LVC4245-1, pin 12, pin 13 and pin 22 equal ground connection; The pin 1 of described the second chip 74LVC4245-1 joins with the output terminal 5V of described 5V power circuit, the pin 23 of described the second chip 74LVC4245-1 and pin 24 all join with the output terminal 3.3V of described 3.3V power circuit, the pin 21～19 of described the second chip 74LVC4245-1 respectively corresponding pin 59～61 with described single-chip microcomputer MSP430F149 joins, the pin 18～14 of described the second chip 74LVC4245-1 respectively corresponding pin 2～6 with described single-chip microcomputer MSP430F149 joins the pin 2 of described the first chip 74LVC4245-1, pin 11, pin 12, pin 13 and pin 22 equal ground connection.
Above-mentioned non-contact type turbine speed detector is characterized in that: described D/A change-over circuit module and V/I change-over circuit module be by chip THS5671, resistance R 14, R15, R16 and R17, and polar capacitor C14, C15 and C16 consist of; The pin 14～7 of described chip THS5671 respectively corresponding pin 3～10 with described the first chip 74LVC4245-1 joins, the pin 6～1 of described chip THS5671 respectively corresponding pin 3～8 with described the second chip 74LVC4245-1 joins, the pin 28 of described chip THS5671 joins with the pin 9 of described the second chip 74LVC4245-1, the pin 24 of described chip THS5671 and pin 27 all join with the output terminal 5V of described 5V power circuit, the pin 17 of described chip THS5671 joins with the positive pole of polar capacitor C16, the pin 18 of described chip THS5671 is by resistance R 14 ground connection, the pin 19 of described chip THS5671 joins with the positive pole of polar capacitor C15, the pin 23 of described chip THS5671 joins with the positive pole of polar capacitor C14, the pin 21 of described chip THS5671 is the second output terminal IOUT2 of V/I change-over circuit module and passes through resistance R 17 ground connection, the pin 22 of described chip THS5671 is the first output terminal IOUT1 of V/I change-over circuit module and passes through resistance R 16 ground connection, the negative pole of described polar capacitor C16, the negative pole of the negative pole of polar capacitor C15 and polar capacitor C14, and the pin 15 of described chip THS5671, pin 16, pin 20 and pin 25 equal ground connection.
Above-mentioned non-contact type turbine speed detector is characterized in that: described the first digital pipe display circuit module is by quaternity charactron LED1, triode Q1, Q2, Q3 and Q4, and resistance R 7, R8, R9 and R10 consist of; The pin 1 of described quaternity charactron LED1 joins with the emitter of triode Q1, the pin 28 of the base stage of described triode Q1 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q1 joins by the output terminal 5V of resistance R 7 with described 5V power circuit, the pin 4 of described quaternity charactron LED1 joins with the emitter of triode Q2, the pin 29 of the base stage of described triode Q2 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q1 joins by the output terminal 5V of resistance R 8 with described 5V power circuit, the pin 5 of described quaternity charactron LED1 joins with the emitter of triode Q3, the pin 30 of the base stage of described triode Q3 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q3 joins by the output terminal 5V of resistance R 9 with described 5V power circuit, the pin 12 of described quaternity charactron LED1 joins with the emitter of triode Q4, the pin 31 of the base stage of described triode Q4 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q4 joins by the output terminal 5V of resistance R 10 with described 5V power circuit, the pin 2 of described quaternity charactron LED1 joins with the pin 36 of described single-chip microcomputer MSP430F149, the pin 3 of described quaternity charactron LED1 joins with the pin 41 of described single-chip microcomputer MSP430F149, the pin 6 of described quaternity charactron LED1 joins with the pin 37 of described single-chip microcomputer MSP430F149, the pin 7 of described quaternity charactron LED1 joins with the pin 40 of described single-chip microcomputer MSP430F149, the pin 8 of described quaternity charactron LED1 joins with the pin 39 of described single-chip microcomputer MSP430F149, the pin 9 of described quaternity charactron LED1 joins with the pin 43 of described single-chip microcomputer MSP430F149, the pin 10 of described quaternity charactron LED1 joins with the pin 38 of described single-chip microcomputer MSP430F149, and the pin 11 of described quaternity charactron LED1 joins with the pin 42 of described single-chip microcomputer MSP430F149; Described the second digital pipe display circuit module is by quaternity charactron LED2, triode Q5, Q6, Q7 and Q8, and resistance R 18, R19, R20 and R21 consist of; The pin 1 of described quaternity charactron LED2 joins with the emitter of triode Q5, the pin 32 of the base stage of described triode Q5 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q5 joins by the output terminal 5V of resistance R 18 with described 5V power circuit, the pin 4 of described quaternity charactron LED2 joins with the emitter of triode Q6, the pin 33 of the base stage of described triode Q6 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q5 joins by the output terminal 5V of resistance R 19 with described 5V power circuit, the pin 5 of described quaternity charactron LED2 joins with the emitter of triode Q7, the pin 34 of the base stage of described triode Q7 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q7 joins by the output terminal 5V of resistance R 20 with described 5V power circuit, the pin 12 of described quaternity charactron LED2 joins with the emitter of triode Q8, the pin 35 of the base stage of described triode Q8 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q8 joins by the output terminal 5V of resistance R 21 with described 5V power circuit, the pin 2 of described quaternity charactron LED2 joins with the pin 36 of described single-chip microcomputer MSP430F149, the pin 3 of described quaternity charactron LED2 joins with the pin 41 of described single-chip microcomputer MSP430F149, the pin 6 of described quaternity charactron LED2 joins with the pin 37 of described single-chip microcomputer MSP430F149, the pin 7 of described quaternity charactron LED2 joins with the pin 40 of described single-chip microcomputer MSP430F149, the pin 8 of described quaternity charactron LED2 joins with the pin 39 of described single-chip microcomputer MSP430F149, the pin 9 of described quaternity charactron LED2 joins with the pin 43 of described single-chip microcomputer MSP430F149, the pin 10 of described quaternity charactron LED2 joins with the pin 38 of described single-chip microcomputer MSP430F149, and the pin 11 of described quaternity charactron LED2 joins with the pin 42 of described single-chip microcomputer MSP430F149.
Above-mentioned non-contact type turbine speed detector is characterized in that: the quantity of the quantity of the described fiber sensor that diffuses, pre-amplification circuit module and the quantity of photoelectric coupling circuit module are n, and wherein, n is not less than 2 natural number.
The present invention also provides the non-contact type turbine rotating speed that a kind of data processing speed is fast, real-time performance good, accuracy of detection is high, Scalable Performance is good detection method, it is characterized in that the method may further comprise the steps:
The present invention compared with prior art has the following advantages:
1, non-contact type turbine speed detector of the present invention has adopted modular design, and is simple in structure; Realized non-contact detecting to turbine speed by the employing fiber sensor that diffuses, rationally novel in design, it is convenient to realize.
2, to adopt the fiber sensor that diffuses be that the externally positioned type sensor carries out turbine speed and detects in the present invention, this sensor low price, antijamming capability are strong and have very high resolution and a sampling rate, take the displacement of the screw of steam turbine and generator junction as sample objects, not only reduced the volume of steam turbine, and be convenient to on-the-spot installation, change, overhaul and debug; The distance of fiber sensor and the sample objects of diffusing can be regulated according to field condition, thereby further reduces the volume of steam turbine.
3, the present invention adopts the single-chip microcomputer MSP430F149 of super low-power consumption to carry out data to process, not only can be energy-conservation, and to environment adaptable, antijamming capability is strong, data processing speed is fast, real-time performance is good; By adopting a plurality of fiber sensors that diffuse to carry out signals collecting, and by microprocessor module multiple signals are carried out analyzing and processing, have reduced the detection error, Effective Raise accuracy of detection.
4, the present invention adopts same chip THS5671 both to finish the D/A conversion, finishes again the V/I conversion, and circuit is simple, and cost performance is high, is convenient to debugging; And, carry out the V/I conversion by digit chip, improved the V/I conversion accuracy.
5, complete function of the present invention not only can be to the mean value of turbine speed
Mean value with turbine speed
The corresponding current size I of institute carries out the scene and shows in real time, can also be with the mean value of turbine speed
The corresponding current size I of institute makes further analyzing and processing with current signal telemechanical signal transmission to the steam turbine DCS Distributed Control System (DCS) of 4～20mA.
6, not only anti-external interference ability is strong in the present invention, long service life, and can accurately detect the rotating speed of steam turbine.
7, Scalable Performance of the present invention is good, realizes that cost is low, practical, and result of use is good, is convenient to promote the use of.
In sum, the present invention is rationally novel in design, and easy to install, anti-external interference ability is strong, and accuracy of detection is high, and functional reliability is high, long service life, and Scalable Performance is good, realizes that cost is low, practical, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the schematic block circuit diagram of non-contact type turbine speed detector of the present invention.
Fig. 2 is the circuit theory diagrams of 5V power circuit of the present invention.
Fig. 3 is the circuit theory diagrams of 3.3V power circuit of the present invention.
Fig. 4 is the circuit theory diagrams of microprocessor module of the present invention.
Fig. 5 is the circuit theory diagrams of photoelectric coupling circuit module of the present invention.
Fig. 6 is the circuit theory diagrams of key circuit module of the present invention.
Fig. 7 is the circuit theory diagrams of logic level converting circuit module of the present invention.
Fig. 8 is the circuit theory diagrams of D/A change-over circuit module of the present invention and V/I change-over circuit module.
Fig. 9 is the circuit theory diagrams of the present invention's the first digital pipe display circuit module.
Figure 10 is the circuit theory diagrams of the present invention's the second digital pipe display circuit module.
Figure 11 is the method flow diagram of non-contact type turbine rotating speed detection method of the present invention.
Description of reference numerals:
1-fiber sensor diffuses; 2-pre-amplification circuit module; 3-photoelectric coupling circuit module;
4-microprocessor module; 5-electric power management circuit module; 5-1-12V direct supply;
5-2-5V power circuit; 5-3-3.3V power circuit;
6-logic level converting circuit module; 7-D/A change-over circuit module;
8-V/I change-over circuit module; 9-steam turbine DCS Distributed Control System (DCS);
The 10-the first digital pipe display circuit module; The 11-the second digital pipe display circuit module;
12-key circuit module.
Embodiment
As shown in Figure 1, non-contact type turbine speed detector of the present invention, comprise that the signal that joins for the turbine speed testing circuit module that turbine speed is detected in real time with turbine speed testing circuit module and be used for turbine speed testing circuit module is detected carries out the microprocessor module 4 that analyzing and processing obtains turbine speed, and be the electric power management circuit module 5 of each electricity consumption module for power supply in the device, described turbine speed testing circuit module is by the fiber sensor 1 that diffuses that joins successively, pre-amplification circuit module 2 and photoelectric coupling circuit module 3 consist of, the described fiber sensor 1 that diffuses is installed on the turbine shaft and for the displacement signal of the screw that detects in real time steam turbine and generator junction and with displacement signal and is converted to electric signal, the output terminal of described microprocessor module 4 is connected to for the first digital pipe display circuit module 10 that shows turbine speed, the logic level converting circuit module 6 that is used for showing the second digital pipe display circuit module 11 of turbine speed institute corresponding current size and is used for carrying out level conversion, the output terminal of described logic level converting circuit module 6 is connected to the D/A change-over circuit module 7 that converts voltage signal for the digital signal of the turbine speed institute corresponding current size that microprocessor module 4 is exported to, and the output terminal of described D/A change-over circuit module 7 is connected to for voltage signal being converted to the V/I change-over circuit module 8 of current signal transfer to steam turbine DCS Distributed Control System (DCS) 9.
Such as Fig. 1, Fig. 2 and shown in Figure 3, in the present embodiment, described electric power management circuit module 5 is by the 12V direct supply 5-1 that joins successively, being used for 12 voltage transitions with 12V direct supply 5-1 output and being the 5V power circuit 5-2 of 5V and being used for the 5V voltage transitions is that the 3.3V power circuit 5-3 of 3.3V consists of, the described fiber sensor 1 that diffuses, pre-amplification circuit module 2 and photoelectric coupling circuit module 3 are all joined with described 12V direct supply 5-1, described the first digital pipe display circuit module 10, the second digital pipe display circuit module 11, logic level converting circuit module 6, D/A change-over circuit module 7 and V/I change-over circuit module 8 are all joined with described 5V power circuit 5-2, described photoelectric coupling circuit module 3, microprocessor module 4 and logic level converting circuit module 6 are all joined with described 3.3V power circuit 5-3; Described 5V power circuit 5-2 is by the 12V connection terminal DUAN2 that be used for to connect 12V direct supply 5-1, chip 7805, and resistance R 3, light emitting diode D2, polar capacitor C8 and C10, and nonpolar capacitor C 9, C11, C12 and C13 consist of; The pin 1 of described chip 7805 and the power end of 12V connection terminal DUAN2, one end of the positive pole of polar capacitor C8 and nonpolar capacitor C 9 joins, the pin 3 of described chip 7805 and the positive pole of polar capacitor C10, one end of nonpolar capacitor C 11, one end of nonpolar capacitor C 12, one end of nonpolar capacitor C 13, one end of resistance R 3 joins and is the output terminal 5V of described 5V power circuit 5-2, the positive pole of the other end of described resistance R 3 and light emitting diode D2 joins, the pin 2 of described chip 7805, the earth terminal of 12V connection terminal DUAN2, the negative pole of polar capacitor C8, the other end of nonpolar capacitor C 9, the negative pole of polar capacitor C10, the other end of nonpolar capacitor C 11, the other end of nonpolar capacitor C 12, the equal ground connection of the negative pole of the other end of nonpolar capacitor C 13 and light emitting diode D2; Described 3.3V power circuit 5-3 is by the 5V connection terminal DUAN1 that is used for connecting 5V power circuit 5-2, chip ASM1117, light emitting diode D1, voltage stabilizing diode D3, resistance R 4, nonpolar capacitor C 5 and C7, and polar capacitor C4 and C6 formation, pin 1 ground connection of described chip ASM1117, the pin 3 of described chip ASM1117 and the negative pole of voltage stabilizing diode D3, one end of the positive pole of polar capacitor C4 and nonpolar capacitor C 5 joins, the power end of the positive pole of described voltage stabilizing diode D3 and described 5V connection terminal DUAN1 joins, the pin 2 of described chip ASM1117 and the positive pole of polar capacitor C6, one end of nonpolar capacitor C 7 an and end of resistance R 4 joins and be the output terminal 3.3V of 3.3V power circuit 5-3, the positive pole of the other end of described resistance R 4 and light emitting diode D1 joins, the earth terminal of described 5V connection terminal DUAN1, the negative pole of polar capacitor C4, the other end of nonpolar capacitor C 5, the negative pole of polar capacitor C6, the equal ground connection of the negative pole of the other end of nonpolar capacitor C 7 and light emitting diode D1.
As shown in Figure 4, in the present embodiment, described microprocessor module 4 is made of single-chip microcomputer MSP430F149, resistance R 5, crystal oscillating circuit, reset circuit and jtag interface circuit, the pin 1 of described single-chip microcomputer MSP430F149 and pin 64 all join with the output terminal 3.3V of described 3.3V power circuit 5-3, and the pin 62 of described single-chip microcomputer MSP430F149 is by resistance R 5 ground connection; Described crystal oscillating circuit is by crystal oscillator Y1 and Y2, and nonpolar capacitor C 1 and C2 formation, the end of described crystal oscillator Y1 and the pin 8 of described single-chip microcomputer MSP430F149 join, the pin 9 of the other end of described crystal oscillator Y1 and described single-chip microcomputer MSP430F149 joins, one end of the end of described crystal oscillator Y2 and the pin 53 of described single-chip microcomputer MSP430F149 and nonpolar capacitor C 1 joins, the pin 52 of the other end of described crystal oscillator Y2 and described single-chip microcomputer MSP430F149 and an end of nonpolar capacitor C 2 join, the equal ground connection of the other end of the other end of described nonpolar capacitor C 1 and nonpolar capacitor C 2; Described reset circuit is made of button S1, nonpolar capacitor C 3 and resistance R 1 and R2, one end of the end of described button S1 and the pin 58 of described single-chip microcomputer MSP430F149, resistance R 1 and an end of nonpolar capacitor C 3 join, the output terminal 3.3V of the other end of described resistance R 1 and described 3.3V power circuit 5-3 joins, one end of the other end of described button S1 and described resistance R 2 joins, the equal ground connection of the other end of the other end of described resistance R 2 and described nonpolar capacitor C 3; Described jtag interface circuit is made of jtag interface, the pin 7 of described jtag interface joins with the output terminal 3.3V of described 3.3V power circuit 5-3, the pin 9 of described jtag interface joins with the pin 58 of described single-chip microcomputer MSP430F149, the pin 10 of described jtag interface joins with the pin 63 of described single-chip microcomputer MSP430F149, the pin 11 of described jtag interface joins with the pin 57 of described single-chip microcomputer MSP430F149, the pin 12 of described jtag interface joins with the pin 56 of described single-chip microcomputer MSP430F149, the pin 13 of described jtag interface joins with the pin 55 of described single-chip microcomputer MSP430F149, and the pin 14 of described jtag interface joins with the pin 54 of described single-chip microcomputer MSP430F149.Adopt the single-chip microcomputer MSP430F149 of super low-power consumption to carry out data and process, not only can be energy-conservation, and to environment adaptable, antijamming capability is strong, data processing speed is fast, real-time performance is good.
As shown in Figure 5, in the present embodiment, described photoelectric coupling circuit module 3 is used for connecting the tripod connector F1 of pre-amplification circuit module 2 by chip P521, and resistance R 12 and R13 formation; The pin 2 of described tripod connector F1 joins with the signal output part of pre-amplification circuit, the pin 1 of described chip P521 joins with the pin 2 of tripod connector F1 and an end of resistance R 12, the pin 1 of the other end of described resistance R 12 and tripod connector F1 all joins with 12V direct supply 5-1, the pin 3 equal ground connection of the pin 2 of described chip P521 and pin 3 and tripod connector F1, the pin 4 of described chip P521 joins with an end of resistance R 13 and the pin 12 of described single-chip microcomputer MSP430F149, and the output terminal 3.3V of the other end of described resistance R 13 and described 3.3V power circuit 5-3 joins.Because pre-amplification circuit module 2 can only be converted to the 12V square-wave signal with the sine wave signal of fiber sensor 1 output that diffuses, can't directly export to single-chip microcomputer MSP430F149, therefore be provided with photoelectric coupling circuit module 3, photoelectric coupling circuit module 3 is used for changing the 12V square-wave signal of pre-amplification circuit module 2 outputs into input signal that the 3.3V square-wave signal interrupts as single-chip microcomputer MSP430F149.
Such as Fig. 1 and shown in Figure 6, in the present embodiment, the input end of described microprocessor module 4 is connected to the key circuit module 12 for the input control parameter, and described key circuit module 12 is by button S2, S3, S4 and S5, and resistance R 22, R23, R24 and R25 consist of; One end of the end of described button S2 and the pin 20 of described single-chip microcomputer MSP430F149 and resistance R 22 joins, one end of the end of described button S3 and the pin 21 of described single-chip microcomputer MSP430F149 and resistance R 23 joins, one end of the end of described button S4 and the pin 22 of described single-chip microcomputer MSP430F149 and resistance R 24 joins, one end of the end of described button S5 and the pin 23 of described single-chip microcomputer MSP430F149 and resistance R 25 joins, the other end of described button S2, the other end of button S3, the equal ground connection of the other end of the other end of button S4 and button S5, the other end of described resistance R 22, the other end of resistance R 23, the other end of the other end of resistance R 24 and resistance R 25 all joins with the output terminal 3.3V of described 3.3V power circuit 5-3.The setting of key circuit module 12, be convenient to this non-contact type turbine speed detector and carry out Function Extension, for example, by the display brightness of operation push-button circuit module 12 controls the first digital pipe display circuit module 10 and the display brightness of the second digital pipe display circuit module 11, so that energy-conservation; In device, add the voice playing circuit module, control the voice broadcast turbine speeds, the audio alert threshold value etc. that transfinites is set by operation push-button circuit module 12.
As shown in Figure 7, in the present embodiment, described logic level converting circuit module 6 is made of the first chip 74LVC4245-1 and the second chip 74LVC4245-2, the pin 1 of described the first chip 74LVC4245-1 and pin 2 all join with the output terminal 5V of described 5V power circuit 5-2, the pin 23 of described the first chip 74LVC4245-1 and pin 24 all join with the output terminal 3.3V of described 3.3V power circuit 5-3, the pin 14～21 of described the first chip 74LVC4245-1 respectively corresponding pin 51～44 with described single-chip microcomputer MSP430F149 joins the pin 11 of described the first chip 74LVC4245-1, pin 12, pin 13 and pin 22 equal ground connection; The pin 1 of described the second chip 74LVC4245-1 joins with the output terminal 5V of described 5V power circuit 5-2, the pin 23 of described the second chip 74LVC4245-1 and pin 24 all join with the output terminal 3.3V of described 3.3V power circuit 5-3, the pin 21～19 of described the second chip 74LVC4245-1 respectively corresponding pin 59～61 with described single-chip microcomputer MSP430F149 joins, the pin 18～14 of described the second chip 74LVC4245-1 respectively corresponding pin 2～6 with described single-chip microcomputer MSP430F149 joins the pin 2 of described the first chip 74LVC4245-1, pin 11, pin 12, pin 13 and pin 22 equal ground connection.The 3.3V level conversion that logic level converting circuit module 6 is used for described single-chip microcomputer MSP430F149 output is the 5V level, make it with D/A change-over circuit module 7 and V/I change-over circuit module 8 in the chip level compatible.
As shown in Figure 8, in the present embodiment, described D/A change-over circuit module 7 and V/I change-over circuit module 8 be by chip THS5671, resistance R 14, R15, R16 and R17, and polar capacitor C14, C15 and C16 consist of; The pin 14～7 of described chip THS5671 respectively corresponding pin 3～10 with described the first chip 74LVC4245-1 joins, the pin 6～1 of described chip THS5671 respectively corresponding pin 3～8 with described the second chip 74LVC4245-1 joins, the pin 28 of described chip THS5671 joins with the pin 9 of described the second chip 74LVC4245-1, the pin 24 of described chip THS5671 and pin 27 all join with the output terminal 5V of described 5V power circuit 5-2, the pin 17 of described chip THS5671 joins with the positive pole of polar capacitor C16, the pin 18 of described chip THS5671 is by resistance R 14 ground connection, the pin 19 of described chip THS5671 joins with the positive pole of polar capacitor C15, the pin 23 of described chip THS5671 joins with the positive pole of polar capacitor C14, the pin 21 of described chip THS5671 is the second output terminal IOUT2 of V/I change-over circuit module 8 and passes through resistance R 17 ground connection, the pin 22 of described chip THS5671 is the first output terminal IOUT1 of V/I change-over circuit module 8 and passes through resistance R 16 ground connection, the negative pole of described polar capacitor C16, the negative pole of the negative pole of polar capacitor C15 and polar capacitor C14, and the pin 15 of described chip THS5671, pin 16, pin 20 and pin 25 equal ground connection.Adopt same chip THS5671 both to finish the D/A conversion, finish again the V/I conversion, circuit is simple, and cost performance is high, is convenient to debugging; And, carry out the V/I conversion by digit chip, improved the V/I conversion accuracy.
As shown in Figure 9, in the present embodiment, described the first digital pipe display circuit module 10 is by quaternity charactron LED1, triode Q1, Q2, Q3 and Q4, and resistance R 7, R8, R9 and R10 consist of; The pin 1 of described quaternity charactron LED1 joins with the emitter of triode Q1, the pin 28 of the base stage of described triode Q1 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q1 joins by the output terminal 5V of resistance R 7 with described 5V power circuit 5-2, the pin 4 of described quaternity charactron LED1 joins with the emitter of triode Q2, the pin 29 of the base stage of described triode Q2 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q1 joins by the output terminal 5V of resistance R 8 with described 5V power circuit 5-2, the pin 5 of described quaternity charactron LED1 joins with the emitter of triode Q3, the pin 30 of the base stage of described triode Q3 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q3 joins by the output terminal 5V of resistance R 9 with described 5V power circuit 5-2, the pin 12 of described quaternity charactron LED1 joins with the emitter of triode Q4, the pin 31 of the base stage of described triode Q4 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q4 joins by the output terminal 5V of resistance R 10 with described 5V power circuit 5-2, the pin 2 of described quaternity charactron LED1 joins with the pin 36 of described single-chip microcomputer MSP430F149, the pin 3 of described quaternity charactron LED1 joins with the pin 41 of described single-chip microcomputer MSP430F149, the pin 6 of described quaternity charactron LED1 joins with the pin 37 of described single-chip microcomputer MSP430F149, the pin 7 of described quaternity charactron LED1 joins with the pin 40 of described single-chip microcomputer MSP430F149, the pin 8 of described quaternity charactron LED1 joins with the pin 39 of described single-chip microcomputer MSP430F149, the pin 9 of described quaternity charactron LED1 joins with the pin 43 of described single-chip microcomputer MSP430F149, the pin 10 of described quaternity charactron LED1 joins with the pin 38 of described single-chip microcomputer MSP430F149, and the pin 11 of described quaternity charactron LED1 joins with the pin 42 of described single-chip microcomputer MSP430F149; As shown in figure 10, in the present embodiment, described the second digital pipe display circuit module 11 is by quaternity charactron LED2, triode Q5, Q6, Q7 and Q8, and resistance R 18, R19, R20 and R21 consist of; The pin 1 of described quaternity charactron LED2 joins with the emitter of triode Q5, the pin 32 of the base stage of described triode Q5 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q5 joins by the output terminal 5V of resistance R 18 with described 5V power circuit 5-2, the pin 4 of described quaternity charactron LED2 joins with the emitter of triode Q6, the pin 33 of the base stage of described triode Q6 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q5 joins by the output terminal 5V of resistance R 19 with described 5V power circuit 5-2, the pin 5 of described quaternity charactron LED2 joins with the emitter of triode Q7, the pin 34 of the base stage of described triode Q7 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q7 joins by the output terminal 5V of resistance R 20 with described 5V power circuit 5-2, the pin 12 of described quaternity charactron LED2 joins with the emitter of triode Q8, the pin 35 of the base stage of described triode Q8 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q8 joins by the output terminal 5V of resistance R 21 with described 5V power circuit 5-2, the pin 2 of described quaternity charactron LED2 joins with the pin 36 of described single-chip microcomputer MSP430F149, the pin 3 of described quaternity charactron LED2 joins with the pin 41 of described single-chip microcomputer MSP430F149, the pin 6 of described quaternity charactron LED2 joins with the pin 37 of described single-chip microcomputer MSP430F149, the pin 7 of described quaternity charactron LED2 joins with the pin 40 of described single-chip microcomputer MSP430F149, the pin 8 of described quaternity charactron LED2 joins with the pin 39 of described single-chip microcomputer MSP430F149, the pin 9 of described quaternity charactron LED2 joins with the pin 43 of described single-chip microcomputer MSP430F149, the pin 10 of described quaternity charactron LED2 joins with the pin 38 of described single-chip microcomputer MSP430F149, and the pin 11 of described quaternity charactron LED2 joins with the pin 42 of described single-chip microcomputer MSP430F149.Adopt charactron to carry out the scene and show, can cause stronger visual stimulus to the field personnel, and easily be identified in larger distance by the staff.
In the present embodiment, the quantity of the quantity of the described fiber sensor 1 that diffuses, the quantity of pre-amplification circuit module 2 and photoelectric coupling circuit module 3 is n, and wherein, n is not less than 2 natural number.By adopting a plurality of fiber sensors 1 that diffuse to carry out signals collecting, and carry out analyzing and processing by 4 pairs of multiple signals of microprocessor module, reduced measuring error, Effective Raise measuring accuracy.Specifically when selecting to diffuse fiber sensor 1, when the screw of the installation site of the fiber sensor 1 that diffuses and steam turbine and generator junction distant, select the larger fiber sensor that diffuses of effective measuring distance, when the close together of the screw of the installation site of the fiber sensor 1 that diffuses and steam turbine and generator junction, select the less fiber sensor that diffuses of effective measuring distance.
As shown in figure 11, non-contact type turbine rotating speed detection method of the present invention may further comprise the steps:
Real-time Collection and sine wave output signal are carried out in the displacement of the screw of step 1, signal Real-time Collection and transmission: n described diffuse 1 pair of steam turbine of fiber sensor and generator junction, and n the described pre-amplification circuit module 2 respectively corresponding sine wave signals that will a plurality ofly diffuse fiber sensors 1 output is converted to square-wave signal and correspondingly respectively passes through n photoelectric coupling circuit module 3 real-time Transmission to microprocessor module 4;
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (10)
1. non-contact type turbine speed detector, it is characterized in that: comprise that the signal that joins for the turbine speed testing circuit module that turbine speed is detected in real time with turbine speed testing circuit module and be used for turbine speed testing circuit module is detected carries out the microprocessor module (4) that analyzing and processing obtains turbine speed, and be the electric power management circuit module (5) of each electricity consumption module for power supply in the device, described turbine speed testing circuit module is by the fiber sensor that diffuses (1) that joins successively, pre-amplification circuit module (2) and photoelectric coupling circuit module (3) consist of, the described fiber sensor that diffuses (1) is installed on the turbine shaft and for the displacement signal of the screw that detects in real time steam turbine and generator junction and with displacement signal and is converted to electric signal, the output terminal of described microprocessor module (4) is connected to for the first digital pipe display circuit module (10) that shows turbine speed, the logic level converting circuit module (6) that is used for showing the second digital pipe display circuit module (11) of turbine speed institute corresponding current size and is used for carrying out level conversion, the output terminal of described logic level converting circuit module (6) is connected to the D/A change-over circuit module (7) that converts voltage signal for the digital signal of the turbine speed institute corresponding current size that microprocessor module (4) is exported to, and the output terminal of described D/A change-over circuit module (7) is connected to for voltage signal being converted to the V/I change-over circuit module (8) of current signal transfer to steam turbine DCS Distributed Control System (DCS) (9).
2. according to non-contact type turbine speed detector claimed in claim 1, it is characterized in that: described electric power management circuit module (5) is by the 12V direct supply (5-1) that joins successively, being used for 12 voltage transitions with 12V direct supply (5-1) output and being the 5V power circuit (5-2) of 5V and being used for the 5V voltage transitions is that the 3.3V power circuit (5-3) of 3.3V consists of, the described fiber sensor that diffuses (1), pre-amplification circuit module (2) and photoelectric coupling circuit module (3) are all joined with described 12V direct supply (5-1), described the first digital pipe display circuit module (10), the second digital pipe display circuit module (11), logic level converting circuit module (6), D/A change-over circuit module (7) and V/I change-over circuit module (8) are all joined with described 5V power circuit (5-2), described photoelectric coupling circuit module (3), microprocessor module (4) and logic level converting circuit module (6) are all joined with described 3.3V power circuit (5-3); Described 5V power circuit (5-2) is by the 12V connection terminal DUAN2 that be used for to connect 12V direct supply (5-1), chip 7805, and resistance R 3, light emitting diode D2, polar capacitor C8 and C10, and nonpolar capacitor C 9, C11, C12 and C13 consist of; The pin 1 of described chip 7805 and the power end of 12V connection terminal DUAN2, one end of the positive pole of polar capacitor C8 and nonpolar capacitor C 9 joins, the pin 3 of described chip 7805 and the positive pole of polar capacitor C10, one end of nonpolar capacitor C 11, one end of nonpolar capacitor C 12, one end of nonpolar capacitor C 13, one end of resistance R 3 joins and is the output terminal 5V of described 5V power circuit (5-2), the positive pole of the other end of described resistance R 3 and light emitting diode D2 joins, the pin 2 of described chip 7805, the earth terminal of 12V connection terminal DUAN2, the negative pole of polar capacitor C8, the other end of nonpolar capacitor C 9, the negative pole of polar capacitor C10, the other end of nonpolar capacitor C 11, the other end of nonpolar capacitor C 12, the equal ground connection of the negative pole of the other end of nonpolar capacitor C 13 and light emitting diode D2; Described 3.3V power circuit (5-3) is by the 5V connection terminal DUAN1 that is used for connecting 5V power circuit (5-2), chip ASM1117, light emitting diode D1, voltage stabilizing diode D3, resistance R 4, nonpolar capacitor C 5 and C7, and polar capacitor C4 and C6 formation, pin 1 ground connection of described chip ASM1117, the pin 3 of described chip ASM1117 and the negative pole of voltage stabilizing diode D3, one end of the positive pole of polar capacitor C4 and nonpolar capacitor C 5 joins, the power end of the positive pole of described voltage stabilizing diode D3 and described 5V connection terminal DUAN1 joins, the pin 2 of described chip ASM1117 and the positive pole of polar capacitor C6, one end of nonpolar capacitor C 7 an and end of resistance R 4 joins and be the output terminal 3.3V of 3.3V power circuit (5-3), the positive pole of the other end of described resistance R 4 and light emitting diode D1 joins, the earth terminal of described 5V connection terminal DUAN1, the negative pole of polar capacitor C4, the other end of nonpolar capacitor C 5, the negative pole of polar capacitor C6, the equal ground connection of the negative pole of the other end of nonpolar capacitor C 7 and light emitting diode D1.
3. according to non-contact type turbine speed detector claimed in claim 2, it is characterized in that: described microprocessor module (4) is made of single-chip microcomputer MSP430F149, resistance R 5, crystal oscillating circuit, reset circuit and jtag interface circuit, the pin 1 of described single-chip microcomputer MSP430F149 and pin 64 all join with the output terminal 3.3V of described 3.3V power circuit (5-3), and the pin 62 of described single-chip microcomputer MSP430F149 is by resistance R 5 ground connection; Described crystal oscillating circuit is by crystal oscillator Y1 and Y2, and nonpolar capacitor C 1 and C2 formation, the end of described crystal oscillator Y1 and the pin 8 of described single-chip microcomputer MSP430F149 join, the pin 9 of the other end of described crystal oscillator Y1 and described single-chip microcomputer MSP430F149 joins, one end of the end of described crystal oscillator Y2 and the pin 53 of described single-chip microcomputer MSP430F149 and nonpolar capacitor C 1 joins, the pin 52 of the other end of described crystal oscillator Y2 and described single-chip microcomputer MSP430F149 and an end of nonpolar capacitor C 2 join, the equal ground connection of the other end of the other end of described nonpolar capacitor C 1 and nonpolar capacitor C 2; Described reset circuit is made of button S1, nonpolar capacitor C 3 and resistance R 1 and R2, one end of the end of described button S1 and the pin 58 of described single-chip microcomputer MSP430F149, resistance R 1 and an end of nonpolar capacitor C 3 join, the output terminal 3.3V of the other end of described resistance R 1 and described 3.3V power circuit (5-3) joins, one end of the other end of described button S1 and described resistance R 2 joins, the equal ground connection of the other end of the other end of described resistance R 2 and described nonpolar capacitor C 3; Described jtag interface circuit is made of jtag interface, the pin 7 of described jtag interface joins with the output terminal 3.3V of described 3.3V power circuit (5-3), the pin 9 of described jtag interface joins with the pin 58 of described single-chip microcomputer MSP430F149, the pin 10 of described jtag interface joins with the pin 63 of described single-chip microcomputer MSP430F149, the pin 11 of described jtag interface joins with the pin 57 of described single-chip microcomputer MSP430F149, the pin 12 of described jtag interface joins with the pin 56 of described single-chip microcomputer MSP430F149, the pin 13 of described jtag interface joins with the pin 55 of described single-chip microcomputer MSP430F149, and the pin 14 of described jtag interface joins with the pin 54 of described single-chip microcomputer MSP430F149.
4. according to non-contact type turbine speed detector claimed in claim 3, it is characterized in that: described photoelectric coupling circuit module (3) is by chip P521, be used for connecting the tripod connector F1 of pre-amplification circuit module (2), and resistance R 12 and R13 formation; The pin 2 of described tripod connector F1 joins with the signal output part of pre-amplification circuit, the pin 1 of described chip P521 joins with the pin 2 of tripod connector F1 and an end of resistance R 12, the pin 1 of the other end of described resistance R 12 and tripod connector F1 all joins with 12V direct supply (5-1), the pin 3 equal ground connection of the pin 2 of described chip P521 and pin 3 and tripod connector F1, the pin 4 of described chip P521 joins with an end of resistance R 13 and the pin 12 of described single-chip microcomputer MSP430F149, and the output terminal 3.3V of the other end of described resistance R 13 and described 3.3V power circuit (5-3) joins.
5. according to non-contact type turbine speed detector claimed in claim 3, it is characterized in that: the input end of described microprocessor module (4) is connected to the key circuit module (12) for the input control parameter, described key circuit module (12) is by button S2, S3, S4 and S5, and resistance R 22, R23, R24 and R25 consist of; One end of the end of described button S2 and the pin 20 of described single-chip microcomputer MSP430F149 and resistance R 22 joins, one end of the end of described button S3 and the pin 21 of described single-chip microcomputer MSP430F149 and resistance R 23 joins, one end of the end of described button S4 and the pin 22 of described single-chip microcomputer MSP430F149 and resistance R 24 joins, one end of the end of described button S5 and the pin 23 of described single-chip microcomputer MSP430F149 and resistance R 25 joins, the other end of described button S2, the other end of button S3, the equal ground connection of the other end of the other end of button S4 and button S5, the other end of described resistance R 22, the other end of resistance R 23, the other end of the other end of resistance R 24 and resistance R 25 all joins with the output terminal 3.3V of described 3.3V power circuit (5-3).
6. according to non-contact type turbine speed detector claimed in claim 3 and method, it is characterized in that: described logic level converting circuit module (6) is made of the first chip 74LVC4245-1 and the second chip 74LVC4245-2, the pin 1 of described the first chip 74LVC4245-1 and pin 2 all join with the output terminal 5V of described 5V power circuit (5-2), the pin 23 of described the first chip 74LVC4245-1 and pin 24 all join with the output terminal 3.3V of described 3.3V power circuit (5-3), the pin 14～21 of described the first chip 74LVC4245-1 respectively corresponding pin 51～44 with described single-chip microcomputer MSP430F149 joins the pin 11 of described the first chip 74LVC4245-1, pin 12, pin 13 and pin 22 equal ground connection; The pin 1 of described the second chip 74LVC4245-1 joins with the output terminal 5V of described 5V power circuit (5-2), the pin 23 of described the second chip 74LVC4245-1 and pin 24 all join with the output terminal 3.3V of described 3.3V power circuit (5-3), the pin 21～19 of described the second chip 74LVC4245-1 respectively corresponding pin 59～61 with described single-chip microcomputer MSP430F149 joins, the pin 18～14 of described the second chip 74LVC4245-1 respectively corresponding pin 2～6 with described single-chip microcomputer MSP430F149 joins the pin 2 of described the first chip 74LVC4245-1, pin 11, pin 12, pin 13 and pin 22 equal ground connection.
7. according to non-contact type turbine speed detector claimed in claim 6, it is characterized in that: described D/A change-over circuit module (7) and V/I change-over circuit module (8) are by chip THS5671, resistance R 14, R15, R16 and R17, and polar capacitor C14, C15 and C16 formation; The pin 14～7 of described chip THS5671 respectively corresponding pin 3～10 with described the first chip 74LVC4245-1 joins, the pin 6～1 of described chip THS5671 respectively corresponding pin 3～8 with described the second chip 74LVC4245-1 joins, the pin 28 of described chip THS5671 joins with the pin 9 of described the second chip 74LVC4245-1, the pin 24 of described chip THS5671 and pin 27 all join with the output terminal 5V of described 5V power circuit (5-2), the pin 17 of described chip THS5671 joins with the positive pole of polar capacitor C16, the pin 18 of described chip THS5671 is by resistance R 14 ground connection, the pin 19 of described chip THS5671 joins with the positive pole of polar capacitor C15, the pin 23 of described chip THS5671 joins with the positive pole of polar capacitor C14, the pin 21 of described chip THS5671 is the second output terminal IOUT2 of V/I change-over circuit module (8) and passes through resistance R 17 ground connection, the pin 22 of described chip THS5671 is the first output terminal IOUT1 of V/I change-over circuit module (8) and passes through resistance R 16 ground connection, the negative pole of described polar capacitor C16, the negative pole of the negative pole of polar capacitor C15 and polar capacitor C14, and the pin 15 of described chip THS5671, pin 16, pin 20 and pin 25 equal ground connection.
8. according to non-contact type turbine speed detector claimed in claim 3, it is characterized in that: described the first digital pipe display circuit module (10) is by quaternity charactron LED1, triode Q1, Q2, Q3 and Q4, and resistance R 7, R8, R9 and R10 consist of; The pin 1 of described quaternity charactron LED1 joins with the emitter of triode Q1, the pin 28 of the base stage of described triode Q1 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q1 joins by the output terminal 5V of resistance R 7 with described 5V power circuit (5-2), the pin 4 of described quaternity charactron LED1 joins with the emitter of triode Q2, the pin 29 of the base stage of described triode Q2 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q1 joins by the output terminal 5V of resistance R 8 with described 5V power circuit (5-2), the pin 5 of described quaternity charactron LED1 joins with the emitter of triode Q3, the pin 30 of the base stage of described triode Q3 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q3 joins by the output terminal 5V of resistance R 9 with described 5V power circuit (5-2), the pin 12 of described quaternity charactron LED1 joins with the emitter of triode Q4, the pin 31 of the base stage of described triode Q4 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q4 joins by the output terminal 5V of resistance R 10 with described 5V power circuit (5-2), the pin 2 of described quaternity charactron LED1 joins with the pin 36 of described single-chip microcomputer MSP430F149, the pin 3 of described quaternity charactron LED1 joins with the pin 41 of described single-chip microcomputer MSP430F149, the pin 6 of described quaternity charactron LED1 joins with the pin 37 of described single-chip microcomputer MSP430F149, the pin 7 of described quaternity charactron LED1 joins with the pin 40 of described single-chip microcomputer MSP430F149, the pin 8 of described quaternity charactron LED1 joins with the pin 39 of described single-chip microcomputer MSP430F149, the pin 9 of described quaternity charactron LED1 joins with the pin 43 of described single-chip microcomputer MSP430F149, the pin 10 of described quaternity charactron LED1 joins with the pin 38 of described single-chip microcomputer MSP430F149, and the pin 11 of described quaternity charactron LED1 joins with the pin 42 of described single-chip microcomputer MSP430F149; Described the second digital pipe display circuit module (11) is by quaternity charactron LED2, triode Q5, Q6, Q7 and Q8, and resistance R 18, R19, R20 and R21 consist of; The pin 1 of described quaternity charactron LED2 joins with the emitter of triode Q5, the pin 32 of the base stage of described triode Q5 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q5 joins by the output terminal 5V of resistance R 18 with described 5V power circuit (5-2), the pin 4 of described quaternity charactron LED2 joins with the emitter of triode Q6, the pin 33 of the base stage of described triode Q6 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q5 joins by the output terminal 5V of resistance R 19 with described 5V power circuit (5-2), the pin 5 of described quaternity charactron LED2 joins with the emitter of triode Q7, the pin 34 of the base stage of described triode Q7 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q7 joins by the output terminal 5V of resistance R 20 with described 5V power circuit (5-2), the pin 12 of described quaternity charactron LED2 joins with the emitter of triode Q8, the pin 35 of the base stage of described triode Q8 and described single-chip microcomputer MSP430F149 joins, the collector of described triode Q8 joins by the output terminal 5V of resistance R 21 with described 5V power circuit (5-2), the pin 2 of described quaternity charactron LED2 joins with the pin 36 of described single-chip microcomputer MSP430F149, the pin 3 of described quaternity charactron LED2 joins with the pin 41 of described single-chip microcomputer MSP430F149, the pin 6 of described quaternity charactron LED2 joins with the pin 37 of described single-chip microcomputer MSP430F149, the pin 7 of described quaternity charactron LED2 joins with the pin 40 of described single-chip microcomputer MSP430F149, the pin 8 of described quaternity charactron LED2 joins with the pin 39 of described single-chip microcomputer MSP430F149, the pin 9 of described quaternity charactron LED2 joins with the pin 43 of described single-chip microcomputer MSP430F149, the pin 10 of described quaternity charactron LED2 joins with the pin 38 of described single-chip microcomputer MSP430F149, and the pin 11 of described quaternity charactron LED2 joins with the pin 42 of described single-chip microcomputer MSP430F149.
9. according to non-contact type turbine speed detector claimed in claim 1, it is characterized in that: the quantity of the quantity of the described fiber sensor that diffuses (1), pre-amplification circuit module (2) and the quantity of photoelectric coupling circuit module (3) are n, wherein, n is not less than 2 natural number.
10. non-contact type turbine rotating speed detection method that utilization is installed as claimed in claim 9 is characterized in that the method may further comprise the steps:
Step 1, signal Real-time Collection and transmission: n the described fiber sensor that diffuses (1) carries out Real-time Collection and sine wave output signal to the displacement of the screw of steam turbine and generator junction, n described pre-amplification circuit module (2) respectively corresponding will a plurality of fiber sensors that diffuse (1) output sine wave signal be converted to square-wave signal and respectively corresponding n photoelectric coupling circuit module (3) real-time Transmission of passing through to microprocessor module (4);
Step 2, signal analysis and processing: at first, described microprocessor module (4) is every time T
iI square-wave signal sampled, the pulse number of its i square-wave signal that samples is counted, obtain the pulse number N of i square-wave signal
i, wherein, i=1～n; Then, described microprocessor module (4) is according to formula
Calculate i the detected turbine speed v of the described fiber sensor that diffuses (1)
i, wherein, M
iFor steam turbine whenever turn around the square-wave signal that described microprocessor module (4) can access pulse number and equal steam turbine and the screw number of generator junction; Then, described microprocessor module (4) is according to formula
Calculate the mean value of n the detected turbine speed of the described fiber sensor that diffuses (1)
At last, described microprocessor module (4) is according to formula
Calculate the mean value of turbine speed
The corresponding current size I of institute; Wherein, I
Max=20mA, I
Min=4mA, V
Max=3400r/m, V
Min=0r/m;
Step 3, result show and transmission: described microprocessor module (4) control the first digital pipe display circuit module (10) is to the mean value of turbine speed
Show in real time, and control the second digital pipe display circuit module (11) to the mean value of turbine speed
The corresponding current size I of institute shows in real time; Simultaneously, described D/A change-over circuit module (7) is with the mean value of the turbine speed of microprocessor module (4) output
The digital signal of institute corresponding current size I converts voltage signal to, and described V/I change-over circuit module (8) is converted to current signal and real-time Transmission to steam turbine DCS Distributed Control System (DCS) (9) with the voltage signal of D/A change-over circuit module (7) output.
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| CN201310011191.7A CN103033641B (en) | 2013-01-12 | 2013-01-12 | Device and method for detecting rotation speed of non-contact steam turbine |
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| CN201310011191.7A CN103033641B (en) | 2013-01-12 | 2013-01-12 | Device and method for detecting rotation speed of non-contact steam turbine |
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| CN103439907A (en) * | 2013-09-04 | 2013-12-11 | 济南大学 | Multi-signal-acquisition speed-measurement and reversed-rotation protection and control device and reversed-rotation judgment method |
| CN105891529A (en) * | 2016-04-08 | 2016-08-24 | 浙江海洋学院 | Tugboat towing tension multi-parameter wireless test device |
| CN107511564A (en) * | 2017-09-30 | 2017-12-26 | 江苏理工学院 | A kind of weld tracker |
| CN108305467A (en) * | 2018-03-13 | 2018-07-20 | 中国电子科技集团公司第三十八研究所 | A kind of bicycle road entrance vehicle flow detection system based on self-identifying |
| CN108680201A (en) * | 2018-05-18 | 2018-10-19 | 江苏大学 | A kind of rotating speed, angel measuring instrument based on friction nanometer power generator |
| CN113687092A (en) * | 2021-07-16 | 2021-11-23 | 杭州电子科技大学 | Non-contact self-generating rotating speed measuring equipment |
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| CN203011934U (en) * | 2013-01-12 | 2013-06-19 | 西安科技大学 | Turbine speed measuring system based on diffuse reflection optical fiber sensor |
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| US5451867A (en) * | 1990-10-24 | 1995-09-19 | Alfred Teves Gmbh | Method and circuit configuration for conditioning the output signal of a rotational speed sensor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103439907A (en) * | 2013-09-04 | 2013-12-11 | 济南大学 | Multi-signal-acquisition speed-measurement and reversed-rotation protection and control device and reversed-rotation judgment method |
| CN103439907B (en) * | 2013-09-04 | 2016-04-27 | 济南大学 | Multi signal collection test the speed and reversal protection control device and reversion decision method |
| CN105891529A (en) * | 2016-04-08 | 2016-08-24 | 浙江海洋学院 | Tugboat towing tension multi-parameter wireless test device |
| CN107511564A (en) * | 2017-09-30 | 2017-12-26 | 江苏理工学院 | A kind of weld tracker |
| CN108305467A (en) * | 2018-03-13 | 2018-07-20 | 中国电子科技集团公司第三十八研究所 | A kind of bicycle road entrance vehicle flow detection system based on self-identifying |
| CN108680201A (en) * | 2018-05-18 | 2018-10-19 | 江苏大学 | A kind of rotating speed, angel measuring instrument based on friction nanometer power generator |
| CN113687092A (en) * | 2021-07-16 | 2021-11-23 | 杭州电子科技大学 | Non-contact self-generating rotating speed measuring equipment |
| CN113687092B (en) * | 2021-07-16 | 2024-05-24 | 杭州电子科技大学 | Non-contact type self-generating rotation speed measuring equipment |
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