CN102494841A - Pressure sensor calibration system - Google Patents
Pressure sensor calibration system Download PDFInfo
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- CN102494841A CN102494841A CN2011104424466A CN201110442446A CN102494841A CN 102494841 A CN102494841 A CN 102494841A CN 2011104424466 A CN2011104424466 A CN 2011104424466A CN 201110442446 A CN201110442446 A CN 201110442446A CN 102494841 A CN102494841 A CN 102494841A
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Abstract
The invention relates to a pressure sensor technology field and discloses a pressure sensor calibration system. The system comprises a pressure source, a data acquisition unit, a data processing unit and a standard pressure sensor. The standard pressure sensor and pressure test ends of one or more tested pressure sensors are communicated with the pressure source. The standard pressure sensor and pressure signal output ends of the tested pressure sensors are connected with a pressure signal input end of the data acquisition unit. The data processing unit compares a detected pressure value of the tested pressure sensors with the detected pressure value of the standard pressure sensor and outputs a difference value of the two detected pressure values. By using the pressure sensor calibration system, the pressure value of the tested pressure sensors and the pressure value of the standard pressure sensor can be automatically collected; and the collected pressure value of the tested pressure sensors and the pressure value of the standard pressure sensor can be automatically compared and the difference value of the two detected pressure values can be output. A measuring result is accurate. By using the pressure sensor calibration system, a plurality of pressure sensors can be checked simultaneously. Working efficiency is high.
Description
Technical field
The present invention relates to the pressure transducer technical field, relate in particular to a kind of pressure sensor calibrating system.
Background technology
In the test of engine; A plurality of performance parameters need be weighed with pressure; And the common adopts pressure sensor of pressure is measured, and the sensitive element of pressure transducer is generally the strain chip, in the long-term use; Corresponding variation can take place in the foil gauge of pressure transducer, finally causes occurring measuring the appearance of inaccurate phenomenon.
For the variation that prevents because of foil gauge causes pressure transducer to measure inaccurate phenomenon; After pressure transducer uses certain hour; Usually it is fixed pressure transducer to be placed on the enterprising rower of pressure sensor calibrating system, thereby confirms the duty of this pressure transducer.
In the prior art; The pressure sensor calibrating system generally comprises hand-operating pressure pump, a tensimeter that has digital display function as reference sensor; The pressure signal output terminal of tested pressure transducer inserts a secondary instrument, is used to show the actual pressure size of tested pressure transducer.Tested sensor is carried out timing signal, and the manual adjustment forcing pump reads reference sensor numerical value to setting value, reads the numerical value of tested pressure transducer again, manually writes down two numerical value, and calculates the difference of the two.
This pressure sensor calibrating system adopts hand-operating pressure pump to produce pressure, and all data read process are manual work and read, and manual calculation goes out the result, can not provide the structure report automatically, possibly exist read, calculation deviation, thereby cause measurement result inaccurate; And this pressure sensor calibrating system once can only check a pressure transducer, and work efficiency is lower.
Therefore, how to develop the pressure sensor calibrating system that a kind of measurement result is accurate, work efficiency is higher, become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
The purpose of this invention is to provide a kind of pressure sensor calibrating system, this pressure sensor calibrating measuring results is accurate, work efficiency is higher.
To achieve these goals, the invention provides a kind of pressure sensor calibrating system, comprise pressure source, data acquisition unit, data processing unit, standard pressure transducer; Said standard pressure transducer, be no less than one tested pressure transducer the pressure test end all with said pressure-source communication, the pressure signal output terminal of said standard pressure transducer, said tested pressure transducer is connected with the pressure signal input end of data acquisition unit; Said data processing unit compares the force value of detected tested pressure transducer and the force value of detected standard pressure transducer, and exports the difference of the two.
Preferably, said pressure source is the pressure piping that is communicated with pressure input device.
Preferably, said pressure input device is a hydraulic hand-pump.
Preferably, said pressure input device is an air compressor machine.
Preferably, be provided with pressure adjustment assembly between said pressure input device and the said pressure piping.
Preferably, the exit of said pressure piping is provided with pressure relief device.
Preferably, said pressure source is the working pressure of said tested sensor.
Preferably, said data acquisition unit comprises the stand data acquisition unit of stand primary controller.
Pressure sensor calibrating provided by the invention system comprises pressure source, data acquisition unit, data processing unit, standard pressure transducer; Said standard pressure transducer, be no less than one tested pressure transducer the pressure test end all with said pressure-source communication, the pressure signal output terminal of said standard pressure transducer, said tested pressure transducer is connected with the pressure signal input end of data acquisition unit; Said data processing unit compares the force value of detected tested pressure transducer and the force value of detected standard pressure transducer, and exports the difference of the two.
In this pressure sensor calibrating system, pressure source can provide tested pressure transducer institute's design flow journey interior pressure, and standard pressure transducer can be selected the pressure transducer of a high grade for use; Pressure source is provided with a plurality of passages, and a plurality of passages can be communicated with the pressure test end of standard pressure transducer, one or more tested pressure transducers respectively.
When tested pressure transducer is checked; Pressure source provides certain pressure; After pressure acted on standard pressure transducer and tested pressure transducer, standard pressure transducer, tested pressure transducer provided pressure signal synchronously, after data acquisition unit receives above-mentioned pressure signal; Can obtain the force value of standard pressure transducer and tested pressure transducer respectively; Data processing unit compares the force value of institute's examination criteria pressure transducer and the force value of tested pressure transducer, calculates the difference of the two, and exports this difference.
Compared with prior art; This pressure sensor calibrating system can gather the force value of tested pressure transducer, the force value of standard pressure transducer automatically; And can be automatically the force value of the tested pressure transducer gathered, the force value of standard pressure transducer be compared, export the difference of the two; Need not manual work and read the force value of tested pressure transducer, the force value of standard pressure transducer, data read and calculate and are not prone to deviation, and measurement result is comparatively accurate; This pressure sensor calibrating system can check a plurality of pressure transducers simultaneously, and work efficiency is higher.
Description of drawings
The principle schematic of the pressure sensor calibrating system that Fig. 1 is provided for a kind of embodiment of the present invention;
The principle schematic of the pressure sensor calibrating system that Fig. 2 is provided for the another kind of embodiment of the present invention;
Wherein, among Fig. 1-Fig. 2:
Standard pressure transducer 1, tested pressure transducer 2, data acquisition unit 3, data processing unit 4, pressure piping 5, pressure-regulating valve 6, inlet needle 7, outlet needle 8, stand data acquisition unit 9, stand primary controller 10.
Embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please referring to Fig. 1, the principle schematic of the pressure sensor calibrating system that Fig. 1 is provided for a kind of embodiment of the present invention.
As shown in Figure 1, pressure sensor calibrating provided by the invention system comprises pressure source, data acquisition unit 3, data processing unit 4, standard pressure transducer 1; Said standard pressure transducer 1, be no less than one tested pressure transducer 2 the pressure test end all with said pressure-source communication, the pressure signal output terminal of said standard pressure transducer 1, said tested pressure transducer 2 is connected with the pressure signal input end of data acquisition unit 3; Said data processing unit 4 compares the force value of detected tested pressure transducer 2 and the force value of detected standard pressure transducer 1, and exports the difference of the two.
In this pressure sensor calibrating system, pressure source can provide the pressure in 2 design flow journeys of tested pressure transducer, and standard pressure transducer 1 can be selected the pressure transducer of a high grade for use, and in the concrete scheme, data acquisition unit 3 can adopt data collecting card; Pressure source is provided with a plurality of passages, and a plurality of passages can be communicated with the pressure test end of standard pressure transducer 1, one or more tested pressure transducers 2 respectively.
When tested pressure transducer 2 is checked; Pressure source provides certain pressure; After pressure acted on standard pressure transducer 1 and tested pressure transducer 2, standard pressure transducer 1, tested pressure transducer 2 provided pressure signal synchronously, after data acquisition unit 3 receives above-mentioned pressure signal; Can obtain the force value of standard pressure transducer 1 and tested pressure transducer 2 respectively; The force value of 4 pairs of institutes of data processing unit examination criteria pressure transducer 1 and the force value of tested pressure transducer 2 compare, and calculate the difference of the two, and export this difference.
Compared with prior art; This pressure sensor calibrating system can gather the force value of tested pressure transducer 2, the force value of standard pressure transducer 1 automatically; And can be automatically the force value of the tested pressure transducer 2 gathered, the force value of standard pressure transducer 1 be compared, export the difference of the two; Need not manual work and read the force value of the force value of tested pressure transducer 2, standard pressure transducer 1, data read and calculate and are not prone to deviation, and measurement result is comparatively accurate; This pressure sensor calibrating system can check a plurality of pressure transducers simultaneously, and work efficiency is higher.
In the concrete embodiment; Pressure source can be the pressure piping 5 that is communicated with pressure input device; In the scheme, can be provided with eight passages on the pressure piping 5 more specifically, one of them passage is communicated with the pressure test end of standard pressure transducer 1; All the other seven passages can be communicated with the pressure test end of seven tested pressure transducers 2 respectively, and the pressure signal output terminal of seven tested pressure transducers 2 is connected with the pressure signal receiving end of data acquisition unit 3.
In the concrete scheme; Pressure input device can adopt hydraulic hand-pump; Hydraulic hand-pump is used for to implementing pressure piping 5 pressure in 2 design flow journeys of tested pressure transducer being provided, in the preferred scheme, and the size that gets into the pressure in the pressure piping 5 for the ease of control; Can said hydraulic hand-pump and said pressure piping 5 between be provided with pressure adjustment assembly; In the concrete scheme, pressure adjustment assembly can comprise pressure-regulating valve 6, inlet needle 7, through the liquid medium in the entering pressure piping 5 of pressure-regulating valve 6, the input of inlet needle 7 scalable manual pumps; Further in the scheme, in order to regulate the size of the pressure in the pressure piping 5, can be provided with pressure relief device in the exit of said pressure piping 5, pressure relief device specifically can be outlet valve pin 8.
When tested pressure transducer 2 is checked; Hydraulic hand-pump can provide the liquid medium with certain pressure, can the pressure of liquid medium be adjusted to suitable force value (this force value can be decided according to the range of the pressure transducer of being checked) through pressure-regulating valve 6, opens inlet needle 7; Export needle 8 and close this moment; After the stable reading of each tested pressure transducer 2, data acquisition unit 3 readings are adjusted pressure-regulating valve 6 successively to a plurality of different force value; When checking from high pressure values to low pressure values, at first adjust to the maximal pressure force that needs to the pressure in the pressure-regulating valve 6, close inlet needle 7; Open outlet needle 8 gradually, let the internal pressure of pressure piping 5 progressively discharge, when pressure is reduced to a certain value; Close outlet needle 8; After treating tested pressure transducer 2 stable reading, data acquisition unit 3 readings are adjusted a plurality of force value points successively; After data acquisition unit 3 record finished, data processing unit 4 compared the force value of the force value of pressure transducer to be detected and standard pressure transducer 1, draws the difference of the two, and exported this difference and provide report.
In the foregoing description, pressure input device adopts hydraulic hand-pump, and pressure medium is a liquid medium; The present invention is not limited thereto; Pressure input device can also adopt air compressor machine, and pressure medium can adopt gas, and these two kinds of schemes all should be in protection scope of the present invention.
In the foregoing description; The pressure that is used to check tested pressure transducer 2 is from the independent pressure source that is provided with; The present invention is not limited thereto, and the pressure that is used to check tested pressure transducer 2 can be the working pressure of tested pressure transducer 2, below this embodiment carried out brief account.
Please referring to Fig. 2, the principle schematic of the pressure sensor calibrating system that Fig. 2 is provided for the another kind of embodiment of the present invention.
As shown in Figure 2; Tested pressure transducer 2 on the testboard bay of engine can directly be installed on the pressure source; The pressure test end of tested pressure transducer 2, standard pressure transducer 1 all and pressure-source communication; In the preferred version, the pressure signal of tested pressure transducer 2 can be gathered by the stand data acquisition unit 9 of the stand primary controller 10 of engine, and the force value of the tested pressure transducer 2 that data processing unit 4 collects said stand data acquisition unit 9 and the force value of the standard pressure transducer 1 that data acquisition unit 3 collects compare; Calculate the difference of the two, and export this difference.
This scheme; The data acquisition of tested pressure transducer 2 is normal image data on the stand of engine still, can realize stand without dismounting, need not change the mode of data acquisition; Realized the synchronous check of stand upward pressure sensor and data acquisition channel, method is simple.Be easy to realize, be convenient to realize execute-in-place.
The above only is the description of the preferred implementation of invention; Should be pointed out that finiteness, and objectively have unlimited concrete structure owing to literal expression; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (8)
1. a pressure sensor calibrating system is characterized in that, comprises pressure source, data acquisition unit, data processing unit, standard pressure transducer; Said standard pressure transducer, be no less than one tested pressure transducer the pressure test end all with said pressure-source communication, the pressure signal output terminal of said standard pressure transducer, said tested pressure transducer is connected with the pressure signal input end of data acquisition unit; Said data processing unit compares the force value of detected tested pressure transducer and the force value of detected standard pressure transducer, and exports the difference of the two.
2. pressure sensor calibrating according to claim 1 system is characterized in that said pressure source is the pressure piping that is communicated with pressure input device.
3. pressure sensor calibrating according to claim 2 system is characterized in that said pressure input device is a hydraulic hand-pump.
4. pressure sensor calibrating according to claim 2 system is characterized in that said pressure input device is an air compressor machine.
5. according to each described pressure sensor calibrating system of claim 2-4, it is characterized in that, be provided with pressure adjustment assembly between said pressure input device and the said pressure piping.
6. pressure sensor calibrating according to claim 5 system is characterized in that the exit of said pressure piping is provided with pressure relief device.
7. pressure sensor calibrating according to claim 1 system is characterized in that said pressure source is the working pressure of said tested sensor.
8. pressure sensor calibrating according to claim 7 system is characterized in that said data acquisition unit comprises the stand data acquisition unit of stand primary controller.
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| CN2011104424466A CN102494841A (en) | 2011-12-26 | 2011-12-26 | Pressure sensor calibration system |
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| CN2011104424466A CN102494841A (en) | 2011-12-26 | 2011-12-26 | Pressure sensor calibration system |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697710A (en) * | 2015-02-12 | 2015-06-10 | 洛阳理工学院 | Pressure sensor calibrating device using granular solid as medium |
| CN104776956A (en) * | 2014-01-15 | 2015-07-15 | 上海理工大学 | Test device for pressure sensors |
| CN104819805A (en) * | 2015-04-30 | 2015-08-05 | 郑州荣奇热电能源有限公司 | Automatic pressure verification device |
| CN105043665A (en) * | 2015-08-26 | 2015-11-11 | 北京龙马负图科技有限公司 | Intensity of pressure detection system possessing automatic calibration function and calibration method thereof |
| CN105424876A (en) * | 2015-11-04 | 2016-03-23 | 中国直升机设计研究所 | Calibrating device for fire extinguishing agent concentration measuring system |
| CN108120553A (en) * | 2017-12-15 | 2018-06-05 | 芜湖致通汽车电子有限公司 | A kind of pressure sensor detecting system |
| CN108195508A (en) * | 2017-12-11 | 2018-06-22 | 西安航天动力测控技术研究所 | A kind of Portable negative-pressure sensor field calibration device |
| CN108615339A (en) * | 2018-08-04 | 2018-10-02 | 乔斌 | The detection device of automobile-used pressure alarm |
| CN108692835A (en) * | 2018-06-08 | 2018-10-23 | 北京金风科创风电设备有限公司 | Calibration system |
| CN108709688A (en) * | 2018-07-20 | 2018-10-26 | 江苏集萃智能传感技术研究所有限公司 | A kind of vivo implantation type pressure sensor test device and method |
| CN108961706A (en) * | 2018-08-04 | 2018-12-07 | 乔斌 | A kind of detection device for automobile pressure alarm |
| CN109000847A (en) * | 2018-06-28 | 2018-12-14 | 中国人民解放军国防科技大学 | Calibration method for force sensor |
| CN109269715A (en) * | 2018-09-11 | 2019-01-25 | 海恩思(深圳)信息科技有限公司 | A kind of test method of organism pressure sensor |
| CN109580087A (en) * | 2018-12-12 | 2019-04-05 | 中国海洋石油集团有限公司 | A kind of test macro and method of standpipe pressure sensor |
| CN109870270A (en) * | 2019-01-17 | 2019-06-11 | 北京远华天创科技有限责任公司 | A kind of digital pressure sensor aging caliberating device and method |
| CN109932129A (en) * | 2017-12-15 | 2019-06-25 | 核工业北京地质研究院 | A kind of quick calibrating method of surface contact water pressure sensor |
| CN110174341A (en) * | 2019-06-06 | 2019-08-27 | 交通运输部公路科学研究所 | A kind of metering method and device of concrete impervious instrument |
| CN110243539A (en) * | 2019-07-26 | 2019-09-17 | 阜阳华润电力有限公司 | A kind of online pressure ratio is to detection device |
| CN110672263A (en) * | 2019-09-02 | 2020-01-10 | 南京理工大学 | Shock wave pressure sensor field calibration device and method |
| CN110702307A (en) * | 2019-10-18 | 2020-01-17 | 成都凯天电子股份有限公司 | Method for testing pressure parameters of multi-channel sensor |
| CN111220323A (en) * | 2019-11-08 | 2020-06-02 | 中北大学 | Pressure sensor calibrating device |
| CN113418654A (en) * | 2021-06-21 | 2021-09-21 | 中国科学院地质与地球物理研究所 | Pressure sensor calibration system and method |
| CN113686486A (en) * | 2021-08-19 | 2021-11-23 | 上海卫星工程研究所 | Satellite whole satellite calibration method and system for pressure sensor of satellite propulsion system |
| CN113865786A (en) * | 2021-09-08 | 2021-12-31 | 马鞍山市亿格仪表有限公司 | Pressure gauge dial pointer calibration equipment based on machine vision |
| CN116059490A (en) * | 2023-03-06 | 2023-05-05 | 苏州鱼跃医疗科技有限公司 | Pressure sensor self-correction method, system, breathing machine, controller and memory |
| CN116481712A (en) * | 2023-06-21 | 2023-07-25 | 乐山市计量测试所 | Method for detecting pressure source by using online pressure gauge |
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| CN104776956A (en) * | 2014-01-15 | 2015-07-15 | 上海理工大学 | Test device for pressure sensors |
| CN104697710A (en) * | 2015-02-12 | 2015-06-10 | 洛阳理工学院 | Pressure sensor calibrating device using granular solid as medium |
| CN104819805A (en) * | 2015-04-30 | 2015-08-05 | 郑州荣奇热电能源有限公司 | Automatic pressure verification device |
| CN105043665B (en) * | 2015-08-26 | 2019-06-14 | 北京龙马负图科技有限公司 | A kind of pressure detection system and its calibration method with automatic calibration function |
| CN105043665A (en) * | 2015-08-26 | 2015-11-11 | 北京龙马负图科技有限公司 | Intensity of pressure detection system possessing automatic calibration function and calibration method thereof |
| CN105424876A (en) * | 2015-11-04 | 2016-03-23 | 中国直升机设计研究所 | Calibrating device for fire extinguishing agent concentration measuring system |
| CN108195508A (en) * | 2017-12-11 | 2018-06-22 | 西安航天动力测控技术研究所 | A kind of Portable negative-pressure sensor field calibration device |
| CN108120553A (en) * | 2017-12-15 | 2018-06-05 | 芜湖致通汽车电子有限公司 | A kind of pressure sensor detecting system |
| CN109932129A (en) * | 2017-12-15 | 2019-06-25 | 核工业北京地质研究院 | A kind of quick calibrating method of surface contact water pressure sensor |
| CN108692835A (en) * | 2018-06-08 | 2018-10-23 | 北京金风科创风电设备有限公司 | Calibration system |
| CN109000847A (en) * | 2018-06-28 | 2018-12-14 | 中国人民解放军国防科技大学 | Calibration method for force sensor |
| CN108709688A (en) * | 2018-07-20 | 2018-10-26 | 江苏集萃智能传感技术研究所有限公司 | A kind of vivo implantation type pressure sensor test device and method |
| CN108961706A (en) * | 2018-08-04 | 2018-12-07 | 乔斌 | A kind of detection device for automobile pressure alarm |
| CN108615339A (en) * | 2018-08-04 | 2018-10-02 | 乔斌 | The detection device of automobile-used pressure alarm |
| CN109269715A (en) * | 2018-09-11 | 2019-01-25 | 海恩思(深圳)信息科技有限公司 | A kind of test method of organism pressure sensor |
| CN109580087A (en) * | 2018-12-12 | 2019-04-05 | 中国海洋石油集团有限公司 | A kind of test macro and method of standpipe pressure sensor |
| CN109580087B (en) * | 2018-12-12 | 2021-02-05 | 中国海洋石油集团有限公司 | Testing system and method for riser pressure sensor |
| CN109870270A (en) * | 2019-01-17 | 2019-06-11 | 北京远华天创科技有限责任公司 | A kind of digital pressure sensor aging caliberating device and method |
| CN110174341A (en) * | 2019-06-06 | 2019-08-27 | 交通运输部公路科学研究所 | A kind of metering method and device of concrete impervious instrument |
| CN110174341B (en) * | 2019-06-06 | 2024-04-26 | 交通运输部公路科学研究所 | Metering method and device for concrete impermeability instrument |
| CN110243539A (en) * | 2019-07-26 | 2019-09-17 | 阜阳华润电力有限公司 | A kind of online pressure ratio is to detection device |
| CN110243539B (en) * | 2019-07-26 | 2022-03-11 | 阜阳华润电力有限公司 | Online pressure ratio is to detection device |
| CN110672263A (en) * | 2019-09-02 | 2020-01-10 | 南京理工大学 | Shock wave pressure sensor field calibration device and method |
| CN110702307A (en) * | 2019-10-18 | 2020-01-17 | 成都凯天电子股份有限公司 | Method for testing pressure parameters of multi-channel sensor |
| CN111220323A (en) * | 2019-11-08 | 2020-06-02 | 中北大学 | Pressure sensor calibrating device |
| CN113418654A (en) * | 2021-06-21 | 2021-09-21 | 中国科学院地质与地球物理研究所 | Pressure sensor calibration system and method |
| CN113686486A (en) * | 2021-08-19 | 2021-11-23 | 上海卫星工程研究所 | Satellite whole satellite calibration method and system for pressure sensor of satellite propulsion system |
| CN113686486B (en) * | 2021-08-19 | 2024-01-16 | 上海卫星工程研究所 | Method and system for calibrating whole star of satellite propulsion system pressure sensor |
| CN113865786A (en) * | 2021-09-08 | 2021-12-31 | 马鞍山市亿格仪表有限公司 | Pressure gauge dial pointer calibration equipment based on machine vision |
| CN116059490A (en) * | 2023-03-06 | 2023-05-05 | 苏州鱼跃医疗科技有限公司 | Pressure sensor self-correction method, system, breathing machine, controller and memory |
| CN116059490B (en) * | 2023-03-06 | 2023-08-04 | 苏州鱼跃医疗科技有限公司 | Pressure sensor self-correction method, system, breathing machine, controller and memory |
| CN116481712A (en) * | 2023-06-21 | 2023-07-25 | 乐山市计量测试所 | Method for detecting pressure source by using online pressure gauge |
| CN116481712B (en) * | 2023-06-21 | 2023-08-25 | 乐山市计量测试所 | Method for detecting pressure source by using online pressure gauge |
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Application publication date: 20120613 |