CN201477423U - Intelligent vibration monitoring and protecting apparatus - Google Patents
Intelligent vibration monitoring and protecting apparatus Download PDFInfo
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- CN201477423U CN201477423U CN2009202351933U CN200920235193U CN201477423U CN 201477423 U CN201477423 U CN 201477423U CN 2009202351933 U CN2009202351933 U CN 2009202351933U CN 200920235193 U CN200920235193 U CN 200920235193U CN 201477423 U CN201477423 U CN 201477423U
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Abstract
The utility model provides an intelligent vibration monitoring and protecting apparatus, which comprises a power supply circuit, a vibration sensor, a measuring circuit, a change-over switch circuit, a signal arrangement circuit, an A/D converter circuit, a current output circuit and a microprocessor. the microprocessor connects with a data memory through a bus, the vibration sensor adopts an electric vortex sensor and a speed sensor simultaneously, an input of the measuring circuit connected to the vibration sensor connects with an intensity signal process circuit and an amplitude signal process circuit connected in parallel, and outputs a connection signal arrangement and an A/D converter circuit through the change-over switch circuit, the A/D converter circuit connects with a digital input port of the microprocessor, the microprocessor bus connects with the data memory, the output of the microprocessor connects with a display and alarm indication, operation button and outputs the switch amount; the output of the microprocessor connects with a D/A converter circuit and connects with the current output circuit.
Description
Technical field
The utility model relates to a kind of vibration monitoring protection instrument.Especially can adopt the vibration transducer of current vortex sensor and speed pickup simultaneously.
Background technology
Vibration monitoring protection instrument is realized by the vibration monitoring sensing; existing vibration monitoring protection instrument adopts speed pickup; existing absolute type speed pickup is present more common a kind of vibration transducer; when the shell 6 of sensor is fixed on the vibrating object; it is whole when the shell 6 of sensor is fixed on the vibrating object; whole sensor follows vibrating object to vibrate together; and the vibrator coil 7 that is in the clearance is to be fixed on the shell with very soft reed 1,8, and its natural frequency of vibration ω n is lower.When natural frequency of vibration ω 〉=1.5 ω n, moving winding is in relatively (relatively and sensor outer housing) stationary state, between coil and the magnet steel relative motion takes place, moving winding cutting magnetic line and produce induced potential E.Yet existing absolute type speed pickup is not with can be to all responding to all Oscillation Amplitudes.The scope that existing vibration monitoring protection instrument uses is limited relatively.
Summary of the invention
The purpose of this utility model is: propose a kind of intelligent vibration monitor and protective device, can all carry out induction monitoring and send guard signal multiple sense vibration speed, displacement.
The purpose of this utility model is achieved in that intelligent vibration monitor and protective device; comprise power circuit; vibration transducer; metering circuit; switching switch circuit; signal conditioning circuit; the A/D change-over circuit; current output circuit; microprocessor; microprocessor through bus connects data-carrier store; vibration transducer adopts current vortex sensor and speed pickup simultaneously; the input that metering circuit connects vibration transducer connects earthquake intensity signal processing circuit and amplitude signal treatment circuit in parallel respectively; and by switching switch circuit it is exported connection signal and put in order and the A/D change-over circuit; the A/D change-over circuit connects the digital input port of microprocessor; microprocessor bus connects data-carrier store; little processing output terminal connects and shows and the indication of reporting to the police; action button, switching value output.Output end of microprocessor connects the D/A change-over circuit and connects current output circuit.
Vibration transducer adopts current vortex sensor and speed pickup simultaneously, the current vortex sensor device treat the vibration measuring parts near, the fore-lying device that amplifier, wave detector and wave filter constitute current vortex sensor is set near current vortex sensor, delivers to testing circuit with the vibration signal amplification and after detecting.
The amplitude signal treatment circuit is: the current vortex sensor sensor signal is carried out filtering through a coupling capacitance, carrying out signal through the one-level amplifier earlier amplifies, carry out filtering through a coupling circuit again, through the secondary discharge circuit signal is adjusted again, and outputed to the next stage operational amplifier.
In the amplitude processing circuit: speed sensor signal carries out filtering by coupling capacitance, by the integral operation circuit input signal is carried out integral operation again, and convert rate signal to amplitude signal, output to the next stage operational amplifier through capacitive coupling again and handle.
When the shell 6 of (absolute type) speed pickup is fixed on the vibrating object, it is whole when the shell 6 of sensor is fixed on the vibrating object, whole sensor follows vibrating object to vibrate together, and the vibrator coil 7 that is in the clearance is to be fixed on the shell with very soft reed 1,8.The input that the holding circuit of intelligent vibration monitor protection instrument connects vibration transducer connects earthquake intensity signal processing circuit and amplitude signal treatment circuit in parallel respectively; and by switching switch circuit it is exported connection signal and put in order and the A/D change-over circuit; the A/D change-over circuit connects the digital input port of central processing unit (microprocessor); microprocessor bus connects data-carrier store; little processing output terminal connects and shows and report to the police indication, action button switching value output.Certainly also be provided with power circuit.
Improvement of the present utility model is: output end of microprocessor connects the D/A change-over circuit and connects current output circuit.The vibration signal of vibration transducer output of the present utility model is selected different signal processing circuits by the central processing unit control its switch.By finishing circuit signal is organized into the DC voltage that A/D converter can be discerned again, by the A/D change-over circuit voltage signal is being converted to the digital signal that central processing unit can be discerned, output current signal, switching value signal or the like are removed in computing, processing, the control of the data of gathering being concentrated through central processing unit then again.
Characteristics of the present utility model are: this is a kind of intelligent vibration monitor protection instrument, can be automatically to all vibration velocities, displacement all being responded to and being measured.
Description of drawings
Fig. 1 is a block diagram of the present utility model;
Fig. 2 current vortex sensor structure;
Fig. 3 absolute type speed pickup structure;
Fig. 4 earthquake intensity signal processing circuit;
Fig. 5 amplitude signal treatment circuit;
Arrangement of Fig. 6 temperature signal and analog to digital conversion circuit;
Fig. 7 microcontroller circuit;
Fig. 8 switching value output circuit;
Fig. 9 current output circuit;
Embodiment
Shown in Figure 1, the utility model intelligent vibration monitor protection instrument mainly is made up of vibration transducer, earthquake intensity signal processing circuit, amplitude signal treatment circuit, processes temperature signal circuit, A/D change-over circuit, central processing unit, demonstration and warning indication, action button, D/A change-over circuit, data-carrier store, electric current output, switching value output, TDM output, digital quantity output, power circuit etc.
Fig. 2,3 medium velocity sensors adopt the absolute type speed pickup.Fig. 2 structure 1-head coil; The 2-hold-doun nut; The 3-high frequency cable; 11,18-reed; The 12-permanent-magnet steel; 13-damping cup; The 14-magnetic conductor; The 15-connecting link; The 16-shell; The 17-moving winding; The 19-pinout connector.
Sensor is made of current vortex sensor and speed pickup.Current vortex sensor: head has flat inductive coil, and it is fixed on stainless steel bolt one end, and the lead-in wire of inductive coil links to each other with high frequency cable from the bolt other end.When the logical upward high frequency of head inductive coil (during 1～2MHz) electric current, has produced the electromagnetic field of high frequency around the coil; As metallic conductor is arranged around it, just can produce induction current, i.e. a current vortex in the metal surface.In order to make inductive coil obtain high-frequency current, inductive coil should be inserted oscillation circuit, can obtain the relevant high-frequency harmonic in gap at the high frequency oscillation circuit output terminal thus, this signal is after amplification, detection, filtering, just can obtain an output voltage that is directly proportional, the DC component of output voltage is proportional to the static clearance between inductive coil and the metallic conductor; If there is relative vibration between coil and the sheet metal, alternating voltage output is then arranged, it is in the relative displacement between sheet metal and the inductive coil, therefore this sensor is called displacement transducer again, it not only can do static measurement, the for example distance between two objects, thickness of sheet metal etc., but also can do dynamic measurement.
The current vortex sensor detection to the alternating current-direct current signal be to be superimposed upon on the high frequency electric source of coil, if directly this mixed frequency signal is delivered to vibration gauge,, the sensitivity of sensor is significantly reduced, and be subject to disturb even adopt high frequency cable.For preventing these adverse effects, amplifier, wave detector and wave filter must be set near current vortex sensor, deliver to vibration gauge with the vibration signal amplification and after detecting.This device is called the fore-lying device of current vortex sensor.
The utility model is made up of vibration transducer, earthquake intensity signal processing circuit, amplitude signal treatment circuit, processes temperature signal circuit, A/D change-over circuit, central processing unit, demonstration and warning indication, action button, D/A change-over circuit, data-carrier store, electric current output, switching value output, TDM output, digital quantity output, power circuit etc.
The vibration signal of current vortex sensor or the output of absolute type speed pickup is selected different signal processing circuits by the microprocessor control its switch.By finishing circuit signal is organized into the DC voltage that A/D converter can be discerned again, by the A/D change-over circuit voltage signal is being converted to the digital signal that microprocessor can be discerned, output current signal, switching value signal or the like are removed in computing, processing, the control of the data of gathering being concentrated through microprocessor then again.
Fig. 4 earthquake intensity treatment circuit: sensor signal is carried out filtering through a coupling capacitance C12, carrying out signal through one-level amplifier U9C earlier amplifies, carry out filtering C21 through a coupling circuit again, through secondary amplifier U9D signal is adjusted again at last, outputed to the next stage operational amplifier and handle.
Fig. 5 amplitude processing circuit: sensor signal is carried out filtering by coupling capacitance, by integral operation circuit U 9A input signal is carried out integral operation again, what mainly realize is low-pass filtering, isolate high-frequency signal, thereby realization anti-jamming capacity, and rate signal converted to amplitude signal, coupling outputs to next stage operational amplifier U9B and handles through C27 again.
The Temperature Treatment circuit: sensor signal outputs to next stage by operational amplifier to voltage adjustment then by temperature special chip output dc voltage.
In arrangement of Fig. 6 temperature signal and the A/D change-over circuit: through this linear rectification circuit U10D, sine wave signal is changed into direct current signal, thereby enter into A/D change-over circuit U12 section processes after the upper level signal is coupled by capacitor C 11.Wherein stabilivolt D3 LM385 adjusts zero-bit.
Circuit such as Fig. 7 microprocessor IC1 (central processor CPU), demonstration, warning indication, data storage, operating key: microprocessor IC1 is to the signal processing circuit image data, and the pulse signal that obtains carries out high-speed counting, concentrates computing, processing.Export corresponding data then, as go to control the operations such as storage of demonstration, warning indication and data.
Fig. 8 is the switching value output circuit: microprocessor is the centralized data processing of sampling, and according to the different alarm level of setting, output alarm signal by light-coupled isolation, conversion, goes to control corresponding relay J 1, J2 output behind respective amplifier IC4.
In Fig. 9 current output circuit: microprocessor sends to high precision D/A change-over circuit IC9 to the data of computing, digital signal is converted to voltage signal, through operational amplifier IC15A signal is adjusted again, give high precision U/I change-over circuit IC8 and triode BG1 voltage signal then, thus output and the corresponding current signal of digital signal.The utility model power circuit: convert four groups of low pressure to by transformer by the 220V alternating current, heap converts DC voltage to through passing a bridge, deliver to mu balanced circuit through rectification, the filtering of excess current again voltage signal is carried out voltage stabilizing to instrument required voltage value, supply with instrument.The utility model is selected the earthquake intensity signal processing circuit and the amplitude signal treatment circuit of parallel connection by one 4051 chip on-off circuits.The utility model sensor outer housing is fixed on the vibrating object, is in to be provided with vibrator coil in the permanent magnetic field in the clearance, and is fixed on the shell with soft reed.
Claims (3)
1. intelligent vibration monitor and protective device, comprise power circuit, vibration transducer, metering circuit, switching switch circuit, signal conditioning circuit, the A/D change-over circuit, current output circuit, microprocessor, it is characterized in that microprocessor through bus connects data-carrier store, vibration transducer adopts current vortex sensor and speed pickup simultaneously, the input that metering circuit connects vibration transducer connects earthquake intensity signal processing circuit and amplitude signal treatment circuit in parallel respectively, and by switching switch circuit it is exported connection signal and put in order and the A/D change-over circuit, the A/D change-over circuit connects the digital input port of microprocessor, microprocessor bus connects data-carrier store, little processing output terminal connects and shows and the indication of reporting to the police, action button, switching value output; Output end of microprocessor connects the D/A change-over circuit and connects current output circuit.
2. intelligent vibration monitor protection instrument according to claim 1; it is characterized in that described amplitude signal treatment circuit is: the current vortex transducing signal carries out filtering through a coupling capacitance; carrying out signal through the one-level amplifier earlier amplifies; carry out filtering through a coupling circuit again; through the secondary discharge circuit signal is adjusted again, and outputed to the next stage operational amplifier.
3. intelligent vibration monitor protection instrument according to claim 1; it is characterized in that in the described amplitude processing circuit: speed sensor signal carries out filtering by coupling capacitance; by the integral operation circuit input signal is carried out integral operation again; and convert rate signal to amplitude signal, output to the next stage operational amplifier through capacitive coupling again and handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202351933U CN201477423U (en) | 2009-08-07 | 2009-08-07 | Intelligent vibration monitoring and protecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202351933U CN201477423U (en) | 2009-08-07 | 2009-08-07 | Intelligent vibration monitoring and protecting apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN201477423U true CN201477423U (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202351933U Expired - Fee Related CN201477423U (en) | 2009-08-07 | 2009-08-07 | Intelligent vibration monitoring and protecting apparatus |
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| CN (1) | CN201477423U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970055A (en) * | 2014-05-22 | 2014-08-06 | 中国人民解放军第二炮兵装备研究院第三研究所 | Multi-environmental data collection and storage device and method |
| CN104713634A (en) * | 2013-12-12 | 2015-06-17 | 青岛碱业股份有限公司 | Lime discharging monitor |
| CN103604493B (en) * | 2013-11-27 | 2015-09-16 | 东南大学 | A kind of voice signal detection and alarm system |
| CN108645503A (en) * | 2018-05-31 | 2018-10-12 | 华中科技大学 | A kind of circuit of enhancing ground sound sensor low frequency measurement ability |
| CN111157106A (en) * | 2020-01-13 | 2020-05-15 | 湖北三峡职业技术学院 | Bridge vibrations monitoring devices |
| CN117470308A (en) * | 2023-10-31 | 2024-01-30 | 北京理工大学珠海学院 | Cutting heat and vibration measuring device, method, computer device, and storage medium |
-
2009
- 2009-08-07 CN CN2009202351933U patent/CN201477423U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604493B (en) * | 2013-11-27 | 2015-09-16 | 东南大学 | A kind of voice signal detection and alarm system |
| CN104713634A (en) * | 2013-12-12 | 2015-06-17 | 青岛碱业股份有限公司 | Lime discharging monitor |
| CN104713634B (en) * | 2013-12-12 | 2017-11-07 | 青岛海湾集团有限公司 | Grey monitor under lime |
| CN103970055A (en) * | 2014-05-22 | 2014-08-06 | 中国人民解放军第二炮兵装备研究院第三研究所 | Multi-environmental data collection and storage device and method |
| CN103970055B (en) * | 2014-05-22 | 2016-11-09 | 中国人民解放军第二炮兵装备研究院第三研究所 | Multi-environment data acquisition storage device and method |
| CN108645503A (en) * | 2018-05-31 | 2018-10-12 | 华中科技大学 | A kind of circuit of enhancing ground sound sensor low frequency measurement ability |
| CN111157106A (en) * | 2020-01-13 | 2020-05-15 | 湖北三峡职业技术学院 | Bridge vibrations monitoring devices |
| CN117470308A (en) * | 2023-10-31 | 2024-01-30 | 北京理工大学珠海学院 | Cutting heat and vibration measuring device, method, computer device, and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120807 |