CN204461677U - A kind of pressure transducer test board - Google Patents
A kind of pressure transducer test board Download PDFInfo
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- CN204461677U CN204461677U CN201520121763.1U CN201520121763U CN204461677U CN 204461677 U CN204461677 U CN 204461677U CN 201520121763 U CN201520121763 U CN 201520121763U CN 204461677 U CN204461677 U CN 204461677U
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- pressure
- test board
- pressure transducer
- gas piping
- plug receptacle
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Abstract
This application provides a kind of pressure transducer test board, comprise pressure-generating device, gas piping, data acquisition controller, electropneumatic transducer, pressure unit and sensor plug receptacle.Pressure-generating device is for exporting malleation or negative pressure; The gas outlet of pressure-generating device is connected with gas piping; Electropneumatic transducer, pressure unit are all connected with this gas piping with sensor plug receptacle, electropneumatic transducer, pressure unit are also connected with data acquisition controller respectively, pressure unit is for detecting the air pressure in gas piping, and sensor plug receptacle is for connecting pressure transducer to be measured; Data acquisition controller is used for outputting to the stable gas pressure of pressure transducer to be measured in this pressure set points.Due to without the need to adopting manual mode to regulate the air pressure applied to pressure transducer to be tested, the program of manual adjustments also just can be saved, therefore, it is possible to the problem that the testing efficiency solving existing pressure transducer test board is lower.
Description
Technical field
The application relates to field of automobile, more particularly, relates to a kind of pressure transducer test board.
Background technology
Pressure transducer test board is mainly used in carrying out performance test and test of dispatching from the factory to admission pressure temperature sensor, differential pressure pickup, to detect the performance of these two kinds of pressure transducers, to determine whether the application index that can reach automobile.
Existing pressure transducer test board utilizes gases at high pressure to test pressure transducer to be tested, but when regulating the air pressure of the gases at high pressure exported to pressure transducer, manual mode is utilized to regulate, cannot automatically adjust to the air pressure of these gases at high pressure, therefore test procedure is comparatively wasted time and energy, and testing efficiency is lower.
Utility model content
In view of this, the application provides a kind of pressure transducer test board, the problem that the testing efficiency for solving existing pressure transducer test board is lower.
To achieve these goals, the existing scheme proposed is as follows:
A kind of pressure transducer test board, optionally, comprising:
Pressure-generating device;
The gas piping be connected with the gas outlet of described pressure-generating device;
Data acquisition controller, is provided with the pressure setting signal output terminal for exporting default pressure setting signal;
Be arranged on the electropneumatic transducer on described gas piping, for by the stable gas pressure in described gas piping in described pressure set points, described electropneumatic transducer is provided with signal input part, and described signal input part is connected with described pressure setting signal output terminal;
Being arranged on the pressure unit on described gas piping, for detecting the gaseous tension in described gas piping, and exporting the current gas pressure value of the described gaseous tension of reflection to described data acquisition controller;
The sensor plug receptacle be connected with described gas piping, for installing pressure transducer to be measured; Described data acquisition controller is provided with signals collecting input end, for receiving the detection signal that described pressure transducer exports.
Optionally, described pressure-generating device comprises air pump and vacuum pump.
Optionally, described data acquisition controller comprises:
Microprocessor and the analog to digital conversion circuit, D/A converting circuit and the control circuit that are connected with described microprocessor;
Analog-digital conversion circuit as described is for receiving described detection signal and outputting to described microprocessor after carrying out analog to digital conversion;
Described D/A converting circuit is used for the pressure set points preset in described microprocessor to be converted to described pressure setting signal;
Described control circuit controls the control signal of described pressure-generating device start and stop for exporting.
Optionally,
Described microprocessor comprises LPC1768 chip;
Analog-digital conversion circuit as described comprises 33202 amplifying circuits.
Optionally, described pressure transducer comprises admission pressure temperature sensor differential pressure sensor;
Described sensor plug receptacle is pressure-temperature sensor plug receptacle differential pressure sensor plug receptacle.
Optionally, the worktable of described pressure transducer test board is provided with two sensors plug receptacle;
Described two sensors plug receptacle comprises multiple described sensor plug receptacle respectively.
Optionally, described two groups of plug receptacles are connected with described gas piping respectively by air way switch valve.
Optionally, described data acquisition controller is provided with communication port, for host computer uploading detection signal.
Optionally, the supply unit of described pressure transducer test board is provided with multiple voltage output end;
Described multiple voltage output end comprises 5 volts of voltage output ends, 12 volts of voltage output ends and/or 24 volts of voltage output ends.
As can be seen from technique scheme, this application provides a kind of pressure transducer test board, comprise pressure-generating device, gas piping, data acquisition controller, electropneumatic transducer, pressure unit and sensor plug receptacle.Pressure-generating device is for exporting malleation or negative pressure; The gas outlet of pressure-generating device is connected with gas piping; Electropneumatic transducer, pressure unit are all connected with this gas piping with sensor plug receptacle, electropneumatic transducer, pressure unit are also connected with data acquisition controller respectively, pressure unit is for detecting the air pressure in gas piping, and sensor plug receptacle is for connecting pressure transducer to be measured; The detection signal that data acquisition controller exports for gathering pressure transducer to be measured, and to electropneumatic transducer output pressure setting signal, this electropneumatic transducer then according to this pressure setting signal by the air pressure in gas piping, be about to output to the stable gas pressure of pressure transducer to be measured in this pressure set points.Due to without the need to adopting manual mode to regulate the air pressure applied to pressure transducer to be tested, the program of manual adjustments also just can be saved, therefore, it is possible to the problem that the testing efficiency solving existing pressure transducer test board is lower.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of a kind of pressure transducer test board that Fig. 1 provides for the embodiment of the present application;
The appearance schematic diagram of a kind of pressure transducer test board that Fig. 2 provides for the application;
The appearance schematic diagram of a kind of pressure transducer test board that Fig. 3 provides for another embodiment of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
Embodiment one
The schematic diagram of a kind of pressure transducer test board that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, the pressure transducer test board that the present embodiment provides comprises pressure-generating device 10, gas piping 50, data acquisition controller 40, electropneumatic transducer 20, pressure unit 30 and sensor interface 60.Above-mentioned each operational module is all arranged in workbench as shown in Figure 2.
Pressure-generating device 10 is for generation of testing the malleation or negative pressure that need.Its gas outlet is connected with gas piping 50.Pressure-generating device 10 comprises the air pump for exporting malleation and the vacuum pump for exporting negative pressure.
Data acquisition controller 40 is provided with the pressure setting signal output terminal 41 for output pressure setting signal, this pressure setting signal output terminal 41 is connected with the signal input part of electropneumatic transducer 20, for exporting the pressure setting signal be converted to according to this pressure set points to electropneumatic transducer 20 according to the pressure set points of establishing in it.
Electropneumatic transducer 20 is connected with gas piping 50, and its signal input part is connected with the pressure setting signal output terminal 41 of data acquisition controller 40, for according to the pressure setting signal that receives by the stable gas pressure in gas piping 50 in this pressure set points.This test board pressure environment controls between 0-400KPa, and selected electropneumatic transducer output area is at 0 ~ 1Mpa.
Pressure unit 30 is arranged on this gas piping 50, its signal output part is connected with data acquisition controller 40, for detecting the air pressure in gas piping 50, and by its signal output part, the current gas pressure value in gas piping 50 is outputted to data acquisition controller 40.The maximum pressure scope of pressure transducer in general to be measured is 15 ~ 400KPa, and that therefore selects pressure unit 30 is input as 0 ~ 1MPa, and input voltage is 24 volts, and output voltage is 0 ~ 5 volt, precision 0.25%FS.
Sensor plug receptacle 60 is connected with this gas piping 50, for patching pressure transducer 100 to be detected, pressure transducer 100 comprises admission pressure temperature sensor differential pressure sensor, correspondingly, this sensor plug receptacle 60 is pressure-temperature sensor plug receptacle differential pressure sensor plug receptacle, thus all can be able to detect two kinds of pressure transducers.
When detecting, data acquisition controller 40 controlled pressure generating means 10 works, and gas piping 50 is boosted, keep pressure constant in limited time and lasting preset duration when air pressure is increased to the upper of pressure transducer, with the sealing property of detected pressures sensor, again bleed air operation is carried out to gas piping 50, while venting, the detection signal of pressure transducer 100 output is received by the signals collecting input end 42 of data acquisition controller 40, and obtain performance curve according to this detection signal, thus complete test.
As can be seen from technique scheme, present embodiments provide a kind of pressure transducer test board, comprise pressure-generating device, gas piping, data acquisition controller, electropneumatic transducer, pressure unit and sensor plug receptacle.Pressure-generating device is for exporting malleation or negative pressure; The gas outlet of pressure-generating device is connected with gas piping; Electropneumatic transducer, pressure unit are all connected with this gas piping with sensor plug receptacle, electropneumatic transducer, pressure unit are also connected with data acquisition controller respectively, pressure unit is for detecting the air pressure in gas piping, and sensor plug receptacle is for connecting pressure transducer to be measured; The detection signal that data acquisition controller exports for gathering pressure transducer to be measured, also for exporting the pressure setting signal obtained according to the pressure set points preset in it to electropneumatic transducer, and this electropneumatic transducer according to this pressure setting signal by the air pressure in gas piping, be about to output to the stable gas pressure of pressure transducer to be measured in this pressure set points.Due to without the need to adopting manual mode to regulate the air pressure applied to pressure transducer to be tested, the program of manual adjustments also just can be saved, therefore, it is possible to the problem that the testing efficiency solving existing pressure transducer test board is lower.
Data acquisition controller 40 in the present embodiment comprises microprocessor, analog to digital conversion circuit, D/A converting circuit and control circuit.Microprocessor is connected with analog to digital conversion circuit, D/A converting circuit, control circuit respectively.
Microprocessor comprises LPC1768 chip; The detection signal that analog to digital conversion circuit exports for receiving pressure transducer to be measured, inside comprises 33202 amplifying circuits; D/A converting circuit is used for the pressure set points preset in described microprocessor to be converted to described pressure setting signal, and outputs to electropneumatic transducer; Control circuit is used for the control signal of pressure output control generating means start and stop.
The supply unit (not shown) of this sensor test board is provided with multiple voltage output end, is respectively used to export multiple voltage, is respectively 5 volts of voltage output ends, 12 volts of voltage output ends and/or 24 volts of voltage output ends.
Data acquisition controller is also provided with communication port (not shown), for connecting host computer.Detection signal can be uploaded to host computer by this communication port by data acquisition controller, and host computer is used for the performance curve according to this detection signal pressure sensor output.
Embodiment two
The appearance schematic diagram of a kind of pressure transducer test board that Fig. 3 provides for another embodiment of the application.
The profile of the pressure transducer test board that the present embodiment provides as shown in Figure 3, the panel of this pressure transducer test board is respectively arranged with two regions.These two regions are respectively a-quadrant 101 and B region 102.
Each region is provided with multiple sensor plug receptacle, each plug receptacle is connected with gas piping respectively, can be connected with gas piping by the plug receptacle of corresponding air way switch valve by a region, simultaneously by gas piping with cut off being communicated with of sensor plug receptacle in another region.Like this can while the pressure transducer of grafting on a region be detected, the pressure transducer that dismounting is to be measured on another region, thus can increase work efficiency.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a pressure transducer test board, is characterized in that, comprising:
Pressure-generating device;
The gas piping be connected with the gas outlet of described pressure-generating device;
Data acquisition controller, is provided with the pressure setting signal output terminal for exporting default pressure setting signal;
Be arranged on the electropneumatic transducer on described gas piping, for by the stable gas pressure in described gas piping in described pressure set points, described electropneumatic transducer is provided with signal input part, and described signal input part is connected with described pressure setting signal output terminal;
Being arranged on the pressure unit on described gas piping, for detecting the gaseous tension in described gas piping, and exporting the current gas pressure value of the described gaseous tension of reflection to described data acquisition controller;
The sensor plug receptacle be connected with described gas piping, for installing pressure transducer to be measured; Described data acquisition controller is provided with signals collecting input end, for receiving the detection signal that described pressure transducer exports.
2. pressure transducer test board as claimed in claim 1, it is characterized in that, described pressure-generating device comprises air pump and vacuum pump.
3. pressure transducer test board as claimed in claim 1, it is characterized in that, described data acquisition controller comprises:
Microprocessor and the analog to digital conversion circuit, D/A converting circuit and the control circuit that are connected with described microprocessor;
Analog-digital conversion circuit as described is for receiving described detection signal and outputting to described microprocessor after carrying out analog to digital conversion;
Described D/A converting circuit is used for the pressure set points preset in described microprocessor to be converted to described pressure setting signal;
Described control circuit controls the control signal of described pressure-generating device start and stop for exporting.
4. pressure transducer test board as claimed in claim 3, is characterized in that,
Described microprocessor comprises LPC1768 chip;
Analog-digital conversion circuit as described comprises 33202 amplifying circuits.
5. pressure transducer test board as claimed in claim 1, it is characterized in that, described pressure transducer comprises admission pressure temperature sensor differential pressure sensor;
Described sensor plug receptacle is pressure-temperature sensor plug receptacle differential pressure sensor plug receptacle.
6. pressure transducer test board as claimed in claim 1, is characterized in that, the worktable of described pressure transducer test board is provided with two sensors plug receptacle;
Described two sensors plug receptacle comprises multiple described sensor plug receptacle respectively.
7. pressure transducer test board as claimed in claim 6, it is characterized in that, described two groups of plug receptacles are connected with described gas piping respectively by air way switch valve.
8. the pressure transducer test board as described in any one of claim 1 ~ 7, is characterized in that, described data acquisition controller is provided with communication port, for host computer uploading detection signal.
9. pressure transducer test board as claimed in claim 8, it is characterized in that, the supply unit of described pressure transducer test board is provided with multiple voltage output end;
Described multiple voltage output end comprises 5 volts of voltage output ends, 12 volts of voltage output ends and/or 24 volts of voltage output ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121763.1U CN204461677U (en) | 2015-03-02 | 2015-03-02 | A kind of pressure transducer test board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121763.1U CN204461677U (en) | 2015-03-02 | 2015-03-02 | A kind of pressure transducer test board |
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| Publication Number | Publication Date |
|---|---|
| CN204461677U true CN204461677U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520121763.1U Expired - Fee Related CN204461677U (en) | 2015-03-02 | 2015-03-02 | A kind of pressure transducer test board |
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| CN (1) | CN204461677U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088619A (en) * | 2017-12-22 | 2018-05-29 | 北京航天计量测试技术研究所 | A kind of real-time dynamic pressure measurement and closed-loop feedback control system |
| CN108534950A (en) * | 2018-07-09 | 2018-09-14 | 北京动力机械研究所 | The multi-channel parallel performance detecting system and detection method of inlet pressure sensor |
| CN112326112A (en) * | 2020-10-09 | 2021-02-05 | 广东澳鸿科技有限公司 | Engine intake pressure sensor detection device and detection method thereof |
| CN117330258A (en) * | 2023-11-29 | 2024-01-02 | 广东国玉科技股份有限公司 | Leakage test method, leakage test gas circuit and storage medium |
-
2015
- 2015-03-02 CN CN201520121763.1U patent/CN204461677U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088619A (en) * | 2017-12-22 | 2018-05-29 | 北京航天计量测试技术研究所 | A kind of real-time dynamic pressure measurement and closed-loop feedback control system |
| CN108534950A (en) * | 2018-07-09 | 2018-09-14 | 北京动力机械研究所 | The multi-channel parallel performance detecting system and detection method of inlet pressure sensor |
| CN108534950B (en) * | 2018-07-09 | 2020-03-31 | 北京动力机械研究所 | Multichannel parallel performance detection system and method for air inlet channel pressure sensor |
| CN112326112A (en) * | 2020-10-09 | 2021-02-05 | 广东澳鸿科技有限公司 | Engine intake pressure sensor detection device and detection method thereof |
| CN117330258A (en) * | 2023-11-29 | 2024-01-02 | 广东国玉科技股份有限公司 | Leakage test method, leakage test gas circuit and storage medium |
| CN117330258B (en) * | 2023-11-29 | 2024-03-08 | 广东国玉科技股份有限公司 | Leakage test method, leakage test gas circuit and storage medium |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20180302 |
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| CF01 | Termination of patent right due to non-payment of annual fee |