CN2735470Y - Isolated gun bore pressure tester - Google Patents
Isolated gun bore pressure tester Download PDFInfo
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- CN2735470Y CN2735470Y CN 200420091946 CN200420091946U CN2735470Y CN 2735470 Y CN2735470 Y CN 2735470Y CN 200420091946 CN200420091946 CN 200420091946 CN 200420091946 U CN200420091946 U CN 200420091946U CN 2735470 Y CN2735470 Y CN 2735470Y
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Abstract
The utility model discloses an isolated gun-bore pressure tester, which belongs to the technical field of an electronic test instrument, and comprises a shell, and an information collecting part of the gun-bore pressure, an information handling part, an information output part, and auxiliary parts which are assembled in the shell. The utility model is characterized in that the isolated gun-bore pressure tester is provided with an electromagnetic shielding casing for resisting the electromagnetic field, and the practicability, the reliability and the testing accuracy of the isolated gun-bore pressure tester can be ensured firstly. Secondly, the optical fiber transmission technology with high speed, low power consumption, and anti-interference is adopted. The utility model is provided with ultralong optical-fiber cable wires in the isolated type with high speed and low-consumption transmission, and the real time transmission of the test information can be ensured. The testing technology is combined with the memory technology, the information real-time testing of the gun-bore pressure is combined with the circuit of the real-time storage, and the new technology combined with the real-time test, the real-time storage and the real time transmission which realizes the electromagnetic shielding under the gun-bore pressure on the site of the gun is combined with the device. The utility model has the advantages of advanced design, reasonable structure, stable precision, reliability and practicability. The utility model is the necessary testing apparatus for developing a novel gunnery armament, and is worth of popularizing and using.
Description
One. technical field
The disclosed isolated form bore of the utility model pressure test device belongs to the electronic instrument technical field, is specifically related to a kind of device that is used for the pressure test of new-type electrothermal chemical cannon bore.
Two. background technology
During electrothermal chemical gun work, the capacitor group is discharged to the plasma generator in the electrothermal chemical gun by pulse forming network, produce high-temperature plasma, the propellant of action of plasma in coyote hole causes electrochemical reaction, produce high temperature and high pressure gas, gases at high pressure and plasma drive bullet jointly and advance.In the course of work, the electrothermal chemical gun body is charged, gun pressure is high transient state wide range pressure, and exist the Strong electromagnetism to do sorrow, this makes the gun pressure measurement of electrothermal gun become most important in the electrothermal chemical gun measuring technique also is the gordian technique of difficulty maximum, transient state physics National Key Laboratory of domestic Institutes Of Technology Of Nanjing uses Kistler6215 piezoelectric sensor, charge amplifier (using ups power to give power supply and mains isolation) and instantaneous waveform recorder, once successfully catch the gun pressure data of ETC big gun, but under the Strong electromagnetic interference environment, once repeatedly damaged testing tool.The external Katulka of AUS equipment department, G.L. wait the people in test base, U.S. Aberdeen, effectively suppress high frequency noise by ferrite bean is installed on data line, and adopted metal shell that whole test system is shielded, successfully obtained the electrothermal chemical gun gun pressure curve of 30mm.
In the development and process of the test of Electromagnetic Launching weapon technology, the use of equipment such as electromagnetic ignition, pulse X-ray photograph, spark shadowgraph photography often relates to the interference problem of high-voltage pulse heavy-current discharge.Because voltage height, discharge current are big, it disturbs and often to make the testing tool can't operate as normal, the large scale integrated circuit in the instrument particularly, adopted submicrometer processing, more be unable to undergo the impact of high voltage, big electric current, tend to cause that insulation course punctures, cause testing tool to damage, have a strong impact on the development process of modern weapon.Therefore research and solve under Strong electric field, Strong magnetic field, Strong electromagnetic field and the electromagnetic environment of Strong that when the high-voltage pulse heavy-current discharge, produces and realize obtaining and Real-time Transmission of multidate information (voltage, electric current, gaseous tension, temperature etc.), very necessary, also press for.Formation can be applicable to this field stable, reliable, precision is high, bandwidth, withstand voltage high transmission, pen recorder, for the development of modern weapon provides effective means of testing, is the idea of our original intention.
Three. summary of the invention
Goal of the invention of the present utility model is to provide to society to be useful for new-type cannon bore pressure test instrument, for the development and the Defence business of new-type cannon are done a little contributions.The thinking of its technological invention is: at first adopt the electromangnetic spectrum of anti-strong-electromagnetic field, guarantee practicality, reliability and the measuring accuracy of testing tool; Secondly adopt high-speed, low-power consumption, anti-interference optical fiber transmission technique, guarantee the real-time Transmission of detecting information; In conjunction with test and memory technology, be implemented in the new method of testing that real-time testing under the electromagnetic screen, real-time storage and the real-time many technology of Optical Fiber Transmission combine, through design and enforcement, this new approaches are received the effect of the phase of giving.
Technology contents of the present utility model is such: this isolated form bore pressure test device; this device comprises the information acquisition part of the bore pressure of housing and interior assembling thereof; the information processing part; information output part branch and their slave part; wherein information acquisition partly comprises the sensor of information acquisition; amplifying circuit and output terminal thereof; the information treatment part branch comprises input circuit; trigger circuit; counting circuit; memory circuit; the A/D change-over circuit; control circuit; parallel-to-serial converter; coding circuit; the information output part branch comprises the circuit of light output and interface; they have the electrical information input end; electro-optical conversion circuit; light output end and Optical Fiber Transmission cable; slave part comprises and computer interface circuits; time base circuit; reference circuit; the Data Control bus; power control circuit; battery and power circuit etc.; and the electronic component of assembling each several part circuit; device; assembly; parts; integrated circuit block; circuit board; connecting conducting wire and cable; function connects package assembly and becomes isolated form bore pressure test device; technical characterstic is: this isolated form bore pressure test device is provided with: multistage screen layer constitutes the housing of anti-Strong electromagnetic field; bore pressure information real-time testing mechanism and real-time pressure information storage mechanism in the electromagnetic screen protection lower casing, and the isolated form overlength optical fiber cable of the transmission bore pressure real-time testing information of band.Wherein bore pressure information real-time testing mechanism and real-time pressure information storage mechanism, by the information acquisition of the bore pressure in this device part, information processing part, information output part divides and each circuit of their slave part constitutes jointly, and collaborative work realizes bore pressure information real-time testing and real-time storage, divides the real-time extra long distance transmission that realizes bore pressure test information under the cooperation of each circuit and Optical Fiber Transmission cable simultaneously at information output part.
According to above-described isolated form bore pressure test device, technical characterstic also has: the housing that described multistage screen layer constitutes anti-Strong electromagnetic field is three grades of enclosed type shielding layer structures, its first order is the higher armoured magnetic field layer of magnetic permeability, as making the armoured magnetic field layer with materials such as the higher 30# steel of magnetic permeability, cast irons.The second level is the higher electric field shielding layer of conductivity, as making the electric field shielding layer with the higher materials such as red copper of conductivity.The third level is the good composite shielding layer of magnetic permeability, conductivity of screened circuit module periphery, as making compound screen layer with materials such as platinum film alloys.
According to above-described isolated form bore pressure test device, the detailed technology characteristics have: the described isolated form Optical Fiber Transmission of a. cable is the Connectorized fiber optic cabling of the isolated form high speed low consumption transmission of overlength, its length palpus 〉=120m, certainly also can lack, as 100m or 80m, the supporting butt joint of fiber-optic output of optical fiber front end and isolated form bore pressure test device, front end connects the electro-optical conversion circuit of proving installation, electro-optical conversion circuit is that the master constitutes by the electrical to optical converter of also string conversion, and the input end of this electrical to optical converter connects with the output terminal of coding circuit.Its terminal can with supporting butt joint of optic fibre input end of isolated form bore pressure test receiving trap.The circuit module of b. described isolated form bore pressure test device all is solidified into circuit body with the casting glue embedding and is assembled in multistage screen layer and constitutes in the housing of anti-Strong electromagnetic field, and the circuit module casting glue is complete to adopt known commercially available casting glue to get final product.
According to above-described isolated form bore pressure test device, the detailed technology characteristics have: the described bore pressure information of a. collecting part is connected and is formed by information acquisition sensor, information amplifying circuit, information acquisition sensor is made of piezoelectric pressure indicator, and its output terminal connects the input end of information amplifying circuit.The information amplifying circuit is that the master constitutes by the integrated circuit block operational amplifier, and its integrated circuit block operational amplifier is a broadband integrated circuit block operational amplifier.B. described trigger circuit comprise and trigger comparator circuit, heavy trigger circuit repeatedly, the input end that triggers comparator circuit connects with the second-order low-pass filter output terminal, trigger the comparator circuit output terminal and connect with the input end that repeatedly weighs trigger circuit, repeatedly heavy trigger circuit output terminal connects with control circuit.C. described control circuit is made up of the multistage gating circuit of multichannel, they connect respectively and control store circuit, trigger circuit, A/D change-over circuit and each control end of conversion and coding circuit, data bus of going here and there, and they also connect and be controlled by the control output end of trigger circuit, power control circuit, computer interface circuits respectively.D. described memory circuit is organized memory circuit, address circuit and B group memory circuit, address circuit function by A and is connected and form.The design of all available known technology of above-described each circuit realizes, also can make of electronic devices and components assembling known and that the merchant sells, as long as can realize all can the using of function of above-described each circuit.
According to above-described isolated form bore pressure test device, the detailed technology characteristics also have: the described time base circuit of a. is connected by crystal oscillating circuit and frequency dividing circuit and forms, and time base circuit connects and control the control end of A/D change-over circuit and A group memory circuit respectively.B. the described interface circuit that connects with computing machine is the parallel type interface circuit, and this circuit connects and control the control end of B group memory circuit, control circuit respectively.C. described power control circuit is formed their connections and control battery and multiple power supplies circuit by on-off circuit or/and the gating circuit function connects.D. described data bus is a WEF/ signal control data bus, and it is that the master constitutes by the integrated circuit block of data bus controller.E. described piezoelectric pressure indicator is that sensitivity is the type quartz crystal pressure transducer of 1.48pc/unit.Described bore pressure information collecting part also is provided with second-order low-pass filter, and it connects with the integrated circuit block operational amplifier output terminal.F. described coding circuit connects coding circuit by parallel-to-serial converter and forms, and coding circuit is that the master constitutes by the integrated circuit block of encoding, and parallel-to-serial converter is that the master constitutes by the integrated circuit block of also string conversion.G. described A/D change-over circuit is that the master constitutes by A/D converter ic piece, and its input end connects with the second-order low-pass filter output terminal, and its output terminal connects with data bus.The A group memory circuit of h. described memory circuit is the first in first out memory circuit, and it is that the master constitutes by the integrated circuit block storage, and its address circuit is that the master constitutes by 13 station integrated circuit block address generators.The B group memory circuit of i. described memory circuit is that the master constitutes by the integrated circuit block random access memory, and its address circuit is that the master constitutes by 19 station integrated circuit block address generators.The design of all available known technology of above-described each circuit realizes, also can make of electronic devices and components assembling known and that the merchant sells, as long as can realize all can the using of function of above-described each circuit.
According to above-described isolated form bore pressure test device, the detailed technology characteristics also have: the described coding circuit of a. is the circuit of 14 bit parallels coding, it is that the master constitutes by the integrated circuit block of also going here and there conversion and encode, as being made of integrated circuit block 74HC166,74HC74,74HC08 etc.B. described A group memory circuit is made of first in first out integrated circuit block storage, as being made of storer HM6264, HC4040, CC4024 etc.The integrated circuit block random access memory of c. described B group memory circuit constitutes, and as being made of storer EM628512 etc., it writes end and connects A/D change-over circuit control end, connects with computer interface circuits one input end and read end.D. described frequency dividing circuit is made up of two frequency dividing circuits of 1M and 16M, and it is made of integrated circuit block EX0316M.E. described reference circuit is a circuit of supplying with operational amplifier, A/D converter biasing power supply, and it is that the master constitutes by integrated circuit block, as being made of integrated circuit block ADR290.More than the integrated circuit block of the described use of each circuit all be known commercially available integrated circuit block, also can electronic devices and components, integrated circuit block assembling known of other and that the merchant sells make, as long as can realize all can the using of function of above-described each circuit.
Isolated form bore pressure test device advantage of the present utility model is a lot: 1. at first adopt the electromangnetic spectrum of anti-strong-electromagnetic field, three grades of shielding casing are set, guarantee practicality, reliability and the measuring accuracy of testing tool; Secondly 2. adopt high-speed, low-power consumption, anti-interference optical fiber transmission technique, form the Connectorized fiber optic cabling of the isolated form high speed low consumption transmission of overlength, guarantee the real-time Transmission of detecting information; 3. in conjunction with test and memory technology, realize under the electromagnetic screen real-time testing, real-time storage and the new method of testing that combines of the many technology of Optical Fiber Transmission in real time at the on-the-spot bore pressure of cannon, and the development testing tool device that makes new advances; 4. this novel isolated form bore pressure test device advanced design, rational in infrastructure, stable precision, reliable and practical, be the necessary testing tool equipment of developing new cannon weapon, be worth of widely use.
Four. description of drawings
Figure of description of the present utility model has 7 width of cloth:
Fig. 1 is an isolated form bore pressure test device circuit structure block scheme;
Fig. 2 is an isolated form bore pressure test device entity structure cut-away view;
Fig. 3 is a bore pressure information amplifying circuit schematic diagram;
Fig. 4 triggers the comparator circuit schematic diagram;
Fig. 5 is repeatedly heavy trigger circuit schematic diagram;
Fig. 6 is the control circuit schematic diagram;
Fig. 7 is and string conversion and coding circuit schematic diagram.
In each figure: 1. piezoelectric sensor; 2. information amplifying circuit; 3.A/D change-over circuit; 4. buffer circuit; 5. trigger circuit; 6.A group address circuit; 7.A group memory circuit; 8.B group address circuit; 9.B group memory circuit; 10. control circuit; 11. computer interface circuit; 12. and string conversion and coding circuit; 13. electro-optical conversion circuit; 14. Optical Fiber Transmission cable output interface; 15. Optical Fiber Transmission cable; 16. time base circuit; 17. computing machine; 18. proving installation housing; 19. Connection Block; 20. adapter sleeve; 21. battery cover; 22. the electromagnetic screen ground floor of proving installation housing; 23. the electromagnetic screen second layer of proving installation housing; 24. battery module; The circuit module of 25 proving installations; 26. the 3rd layer of the electromagnetic screen of proving installation; 27. Rubber washer; 28. end cap; 29. output adapter sleeve; 30. optical fiber isolating cylinder; 31. isolate lid; 32. end cap; 33.IC
1High range (600Mpa) input end; 34.IC
1Lower range (350Mpa) input end; 35.IC
1Output terminal; 36.IC
1The reference potential input end; 37.IC
2Ground end and low level end; 38.IC
2The trigger pip input end; 39.IC
2The comparison signal input end; 40.IC
2The triggering output terminal; 41.IC
2The high level end; 42.IC
2From union end; 43.IC
3The triggering input end; 44.IC
4Address input end; 45.IC
3Output terminal, 11111 also is IC
5The control input end; 46.IC
4Output terminal, IC holds concurrently
5An input end; 47. ground end; 48.IC
5The triggering output terminal; 49.IC
5Triggering (bearing) output terminal; 50.IC
5Clear terminal; 51.IC
6Trigger input end; 52.IC
6Enable (interface) control end; 53.IC
9Enable (interface) control end; 54.IC
9The reading input end; 55.IC
7Time base input end; 56.IC
8Time base input end; 57.IC
6Output terminal also is IC
8An input end; 58. ground end; 59.IC
10Enable (interface) control end; 60.IC
7Output terminal, also be IC
10An input end; 61.IC
8Output terminal, also be IC
11An input end; 62.IC
9Output terminal, also be IC
11Another input end; 63. ground end; 64.IC
10Output terminal, also be IC
12Input end; 65.IC
12Enable (interface) control end; 66.IC
11Output terminal; 67.IC
12Output terminal, also be IC
14Input end; 68.IC
13The reading input end; 69.IC
13Output terminal, also be IC
15Input end; 70.IC
15Enable (interface) control end; 71.IC
14(write address) output terminal, to first in first out memory circuit input end; 72.IC
15Output terminal; 73.IC
16, IC
17Clear terminal; 74.IC
16, IC
17Set input, also be IC
18The SET output; 75. ground end; 76.IC
16, IC
17Time base input end; 77～84.IC
16Eight bit parallel data input pins; 85.IC
16The serial data output terminal, i.e. parallel-to-serial converter output terminal; 86.IC
16And string conversion input end, also be IC
17And string conversion output terminal; 87～94.IC
17Eight bit parallel data input pins; 95. ground end; 96,97.IC
17The noble potential input end; 98.IC
18The SET output, also be IC
19Set input; 99.IC
18The input end of set, also be IC
20Output terminal; 100.IC
18Time base input end; 101.IC
20The zero clearing input end; 102.IC
19Output terminal, also be IC
20An input end; 103,104.IC
19The noble potential input end; 105.IC
19Another output terminal; 106.IC
19Time base input end; R
1～R
5Be resistance; C
1～C
5Be electric capacity: IC
1～IC
20Be integrated circuit block.
Five. specific embodiments
Non-limiting examples of the present utility model is as follows:
Embodiment one. isolated form bore pressure test device
This routine isolated form bore pressure test device concrete structure is united by Fig. 1～Fig. 7 and is illustrated.This device comprises information acquisition part, information processing part, information output part branch and their slave part of the bore pressure of housing 18 and interior assembling thereof.Shown in Figure 1 is isolated form bore pressure test device circuit structure block scheme, wherein information acquisition partly has the piezoelectric sensor 1 of information acquisition, information amplifying circuit 2 and output terminal thereof, the information treatment part branch comprises input circuit, A/D change-over circuit 3, buffer circuit 4, trigger circuit 5, memory circuit 6～9, control circuit 10, and string conversion and coding circuit 12, counting circuit etc., the information output part branch comprises the circuit of light output and interface, they are electrical information input ends, electro-optical conversion circuit 13, Optical Fiber Transmission cable output interface 14 and Optical Fiber Transmission cable 15, slave part comprises computing machine 17, interface circuit 11, time base circuit 16, reference circuit, the Data Control bus, power control circuit, battery and power circuit etc.And electronic component, device, assembly, parts, integrated circuit block, circuit board, connecting conducting wire and the cable of assembling each several part circuit, function connects package assembly and becomes isolated form bore pressure test device.Fig. 2 then illustrates this routine isolated form bore pressure test device entity structure cut-away view, has among the figure: the ground floor 22 of Connection Block 19, adapter sleeve 20, proving installation housing---urceolus, end cap 28, output adapter sleeve 29, optical fiber isolating cylinder 30, isolate cover 31, end cap 32 etc. all is the electromagnetic screen ground floor that the 30# steel is done.The second layer 23---the inner core of battery cover 21, proving installation housing, it all is the electromagnetic screen second layer of making material of red copper, battery module 24, Rubber washer 27, particularly the circuit module 25 of proving installation all is encapsulated in the 3rd layer 26 of the electromagnetic screen that the platinum film alloy material does, circuit module 25 all is solidified into circuit body with the casting glue embedding, and be assembled in multistage screen layer and constitute in the housing 18 of anti-Strong electromagnetic field, the circuit module casting glue is complete to adopt known commercially available casting glue to get final product.For anti-Strong electromagnetic field, this routine proving installation is provided with the housing that three cascade screen layers constitute, and its first order is the higher armoured magnetic field layer 22 of magnetic permeability etc., is to make the armoured magnetic field layer with the higher materials such as 30# steel of magnetic permeability.The second level is the higher electric field shielding layer 23 of conductivity etc., is to make the electric field shielding layer with the higher materials such as red copper of conductivity.The third level is the good composite shielding layer 26 of magnetic permeability, the conductivity of screened circuit module 25 peripheries, is to make compound screen layer with materials such as platinum film alloys.The shielding casing protection down; each circuit of the information acquisition part of the bore pressure in it, information processing part, information output part branch and their slave part constitutes bore pressure information real-time testing mechanism and real-time pressure information storage mechanism jointly; the isolated form overlength optical fiber cable of the transmission bore pressure real-time testing information of this device band in addition; the common cooperation; collaborative work; realize bore pressure information real-time testing and real-time storage, realize the real-time extra long distance transmission of bore pressure test information simultaneously.The Connectorized fiber optic cabling of the isolated form high speed low consumption transmission that described isolated form Optical Fiber Transmission cable 15 is overlength, its length palpus 〉=120m, certainly also can lack, as 100m or 80m, fiber-optic output 14 supporting butt joints of optical fiber front end and isolated form bore pressure test device, front end connects the electro-optical conversion circuit 13 of proving installation, and electro-optical conversion circuit 13 is that the master constitutes by the electrical to optical converter of also string conversion, and the input end of this electrical to optical converter connects with the output terminal of coding circuit 12.The fibre-optic terminus has interface, can with supporting butt joint of optic fibre input end of isolated form bore pressure test receiving trap.The installation situation of information acquisition sensor 1 also is shown in Fig. 2, and this sensor 1 is made of piezoelectric pressure indicator, and it is that sensitivity is the type quartz crystal pressure transducer of 1.48pc/unit, in this way 6215 piezoelectric pressure indicators of Kistler company.And bore pressure information Acquisition Circuit is made up of information acquisition sensor 1 and 2 connections of information amplifying circuit, and the output terminal of its information acquisition sensor 1 connects the input end of information amplifying circuit 2.Fig. 3 illustrates the structure of information amplifying circuit 2, and it is by IC
1The integrated circuit block operational amplifier is main formation, and its integrated circuit block operational amplifier is a broadband integrated circuit block operational amplifier OPA2340.Information acquisition circuit also is provided with second-order low-pass filter (it is made of integrated circuit block OPA2340), and it connects with information amplifying circuit 2 output terminals.Fig. 4, Fig. 5 show trigger circuit 5, comprise and trigger comparator circuit, heavy trigger circuit repeatedly, triggering comparator circuit is main constitute (structure is seen Fig. 4) by integrated circuit block MAX931, its input end connects with the second-order low-pass filter output terminal, triggering the comparator circuit output terminal connects with the input end that repeatedly weighs trigger circuit, repeatedly heavy trigger circuit are that the master constitutes (structure is seen Fig. 5) by two 74HC04 and a slice 74HC74 integrated circuit block, and this circuit output end connects with control circuit 10.Control circuit 10 is made up of the multistage gating circuit of multichannel, promptly by IC
6, IC
12, IC
20(all being 74HC08), IC
7, IC
8, IC
10, IC
11(all being 74HC00 integrated circuit blocks), IC
9, I
15(all being 74HC32 integrated circuit blocks), IC
13, IC
14The connection of (all being 74HC04 integrated circuit blocks) common function forms, it is shown among Fig. 6, this circuit connects respectively and control store circuit 6～9, trigger circuit 5, A/D change-over circuit 3, and each control end of string conversion and coding circuit 12, data bus, also connect respectively and be controlled by trigger circuit 5, power control circuit, with the control output end of the interface circuit 11 of computing machine 17.Memory circuit is connected and is formed by A group memory circuit 6, address circuit 7 and B group memory circuit 8, address circuit 9 functions.A group memory circuit 6 is the first in first out memory circuit, it is that the master constitutes by two HM6264, a slice HC4040, a slice CC4024 integrated circuit block storage, its address circuit 7 is that the master constitutes by 13 integrated circuit block address generator, and the address of 8kw storer can be provided.B group memory circuit 8 is that the master constitutes by EM628512 integrated circuit block random access memory, and memory capacity is 512k * 8, and it writes the control end that end connects A/D change-over circuit 3, connects with interface circuit 11 1 input ends of computing machine 17 and read end.Its address circuit 9 is that the master constitutes by 19 integrated circuit block address generator, and the address of 512kw storer can be provided.The A/D change-over circuit is that the master constitutes by A/D converter ic piece AD9243, and its input end connects with the second-order low-pass filter output terminal, and its output terminal connects with data bus.Coding circuit 12 shown in Figure 7 is circuit of one 14 bit parallel coding, coding circuit 12 connects coding circuit by parallel-to-serial converter and forms, by the integrated circuit block of also going here and there conversion and encode is that the master constitutes, as being made of integrated circuit block 74HC166,74HC74,74HC08 etc.The interface circuit 11 that connects with computing machine 17 is parallel type interface circuits, and this circuit connects and control the control end of B group memory circuit 8, control circuit 10 respectively.Time base circuit 16 is connected by crystal oscillating circuit and frequency dividing circuit and forms, time base circuit 16 connects and controls the control end of A/D change-over circuit 3 and A group memory circuit 6 respectively, frequency dividing circuit is made up of two frequency dividing circuits of 1M and 16M, and it is made of integrated circuit block EM03 16M.Data bus is a WEF/ signal control data bus, and it is that the master constitutes by the integrated circuit block 74HC244 of data bus controller.Power control circuit or/and the connection of gating circuit function is formed, connects also control battery and multiple power supplies circuit by on-off circuit, and it is that the master constitutes by integrated circuit block LP2985.Reference circuit is supplied with the circuit of operational amplifier, A/D converter biasing power supply, and it is that the master constitutes by integrated circuit block ADR290.The all available known technology of other NM circuit designs and produces.Also have, more than the integrated circuit block of the described use of each circuit all be known commercially available integrated circuit block, also can electronic devices and components, integrated circuit block assembling known of other and that the merchant sells make.The also available known technology design of described above each circuit realizes, as long as can realize all can the using of function of above-described each circuit.
Embodiment two. isolated form bore pressure test device
This routine isolated form bore pressure test device concrete structure is united by Fig. 1～Fig. 7 and is illustrated.This device comprises information acquisition part, information processing part, information output part branch and their slave part of the bore pressure of housing 18 and interior assembling thereof.Shown in Figure 1 is isolated form bore pressure test device circuit structure block scheme, and Fig. 2 then illustrates this routine isolated form bore pressure test device entity structure cut-away view.Fig. 3～Fig. 7 then unites the concrete structure of some circuit that this example isolated form bore pressure test device is shown.Different with embodiment one is: 1. ground floor 22---the urceolus etc. of this proving installation housing are the higher armoured magnetic field layers of magnetic permeability, are to make the armoured magnetic field layer with the higher materials such as cast iron of magnetic permeability.2. information amplifying circuit 2 is that the master constitutes by integrated circuit block operational amplifier OPA340.3.A/D change-over circuit is that the master constitutes by A/D converter ic piece AD9240.What all the other were not stated is same as described in the embodiment one entirely, no longer repeats.
Claims (6)
1. isolated form bore pressure test device, this device comprises the information acquisition part of the bore pressure of housing and interior assembling thereof, the information processing part, information output part branch and their slave part, wherein information acquisition partly comprises the sensor of information acquisition, amplifying circuit and output terminal thereof, the information treatment part branch comprises input circuit, trigger circuit, counting circuit, memory circuit, the A/D change-over circuit, control circuit, parallel-to-serial converter, coding circuit, the information output part branch comprises the circuit of light output and interface, they have the electrical information input end, electro-optical conversion circuit, light output end and Optical Fiber Transmission cable, slave part comprises and computer interface circuits, time base circuit, reference circuit, the Data Control bus, power control circuit, battery and power circuit, and the electronic component of assembling each several part circuit, device, assembly, parts, integrated circuit block, circuit board, connecting conducting wire and cable, function connects package assembly and becomes isolated form bore pressure test device, be characterised in that: this isolated form bore pressure test device is provided with: multistage screen layer constitutes the housing of anti-Strong electromagnetic field, bore pressure information real-time testing mechanism and real-time pressure information storage mechanism in the shielding casing, and the isolated form overlength optical fiber cable of the transmission bore pressure real-time testing information of band.
2. isolated form bore pressure test device according to claim 1, be characterised in that: the housing that described multistage screen layer constitutes anti-Strong electromagnetic field is three grades of enclosed type shielding layer structures, its first order is the higher armoured magnetic field layer of magnetic permeability, the second level is the higher electric field shielding layer of conductivity, and the third level is the good composite shielding layer of magnetic permeability, conductivity of screened circuit module periphery.
3. isolated form bore pressure test device according to claim 2 is characterised in that:
A. the isolated form high-speed transfer Connectorized fiber optic cabling that described isolated form Optical Fiber Transmission cable is an overlength, its length 〉=120m, the supporting butt joint of fiber-optic output of its front end and isolated form bore pressure test device, its terminal can with supporting butt joint of optic fibre input end of isolated form bore pressure test receiving trap;
The circuit module of b. described isolated form bore pressure test device all is solidified into circuit body with the casting glue embedding and is assembled in multistage screen layer and constitutes in the housing of anti-Strong electromagnetic field.
4. isolated form bore pressure test device according to claim 3 is characterised in that:
A. described bore pressure information Acquisition Circuit is connected and is formed by information acquisition sensor, information amplifying circuit, and information acquisition sensor is made of piezoelectric pressure indicator, and its output terminal connects the input end of information amplifying circuit; The information amplifying circuit is that the master constitutes by the integrated circuit block operational amplifier, and its integrated circuit block operational amplifier is a broadband integrated circuit block operational amplifier;
B. described trigger circuit comprise and trigger comparator circuit, heavy trigger circuit repeatedly, the input end that triggers comparator circuit connects with the second-order low-pass filter output terminal, trigger the comparator circuit output terminal and connect with the input end that repeatedly weighs trigger circuit, repeatedly heavy trigger circuit output terminal connects with control circuit;
C. described control circuit is made up of the multistage gating circuit of multichannel, they connect respectively and control store circuit, trigger circuit, A/D change-over circuit and each control end of conversion and coding circuit, data bus of going here and there, and they also connect and be controlled by the control output end of trigger circuit, power control circuit, computer interface circuits respectively;
D. described memory circuit is organized memory circuit, address circuit and B group memory circuit, address circuit function by A and is connected and form.
5. isolated form bore pressure test device according to claim 4 is characterised in that:
A. described time base circuit is connected by crystal oscillating circuit and frequency dividing circuit and forms, and time base circuit connects and control the control end of A/D change-over circuit and A group memory circuit respectively;
B. the described interface circuit that connects with computing machine is the parallel type interface circuit, and this circuit connects and control the control end of B group memory circuit, control circuit respectively;
C. described power control circuit is formed their connections and control battery and multiple power supplies circuit by on-off circuit or/and the gating circuit function connects;
D. described data bus is a WEF/ signal control data bus, and it is that the master constitutes by the integrated circuit block of data bus controller;
E. described piezoelectric pressure indicator is that sensitivity is the type quartz crystal pressure transducer of 1.48pc/unit; Described bore pressure information Acquisition Circuit also is provided with second-order low-pass filter, and it connects with the integrated circuit block operational amplifier output terminal;
F. described coding circuit connects coding circuit by parallel-to-serial converter and forms, and coding circuit is that the master constitutes by the integrated circuit block of encoding, and parallel-to-serial converter is that the master constitutes by the integrated circuit block of also string conversion;
G. described A/D change-over circuit is that the master constitutes by A/D converter ic piece, and its input end connects with the second-order low-pass filter output terminal, and its output terminal connects with data bus;
The A group memory circuit of h. described memory circuit is the first in first out memory circuit, and it is that the master constitutes by the integrated circuit block storage, and its address circuit is that the master constitutes by 13 station integrated circuit block address generators;
The B group memory circuit of i. described memory circuit is that the master constitutes by the integrated circuit block random access memory, and its address circuit is that the master constitutes by 19 station integrated circuit block address generators.
6. isolated form bore pressure test device according to claim 5 is characterised in that:
A. described coding circuit is the circuit that 14 bit parallels are encoded, and it is that the master constitutes by the integrated circuit block of also going here and there conversion and encode;
B. described A group memory circuit is made of first in first out integrated circuit block storage;
C. described B group memory circuit is made of the integrated circuit block random access memory, and it writes end and connects A/D change-over circuit control end, connects with computer interface circuits one input end and read end;
D. described frequency dividing circuit is made up of two frequency dividing circuits of 1M and 16M;
E. described reference circuit is a circuit of supplying with operational amplifier, A/D converter biasing power supply, and it is that the master constitutes by integrated circuit block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420091946 CN2735470Y (en) | 2004-10-12 | 2004-10-12 | Isolated gun bore pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420091946 CN2735470Y (en) | 2004-10-12 | 2004-10-12 | Isolated gun bore pressure tester |
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| Publication Number | Publication Date |
|---|---|
| CN2735470Y true CN2735470Y (en) | 2005-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420091946 Expired - Fee Related CN2735470Y (en) | 2004-10-12 | 2004-10-12 | Isolated gun bore pressure tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155045A (en) * | 2014-07-31 | 2014-11-19 | 中北大学 | Built-in pressure test instrument |
| CN104155046A (en) * | 2014-07-31 | 2014-11-19 | 中北大学 | Built-in pressure test method |
-
2004
- 2004-10-12 CN CN 200420091946 patent/CN2735470Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104155045A (en) * | 2014-07-31 | 2014-11-19 | 中北大学 | Built-in pressure test instrument |
| CN104155046A (en) * | 2014-07-31 | 2014-11-19 | 中北大学 | Built-in pressure test method |
| CN104155045B (en) * | 2014-07-31 | 2016-08-10 | 中北大学 | Built-in pressure tester |
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