CN205157113U - Dynamic pressure sensor calibration equipment - Google Patents
Dynamic pressure sensor calibration equipment Download PDFInfo
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- CN205157113U CN205157113U CN201520871442.3U CN201520871442U CN205157113U CN 205157113 U CN205157113 U CN 205157113U CN 201520871442 U CN201520871442 U CN 201520871442U CN 205157113 U CN205157113 U CN 205157113U
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Abstract
The utility model provides a dynamic pressure sensor calibration equipment which characterized in that: including the pneumatics jar, the relief pressure valve, the manometer, the admission valve, the connecting line, the quck -opening valve, the bleed valve, the muffler, sensor seat, the atmospheric valve, the digital display table, pressure sensor, relief pressure valve connection pressure table, the relief pressure valve passes through the connecting line and connects the admission valve, the admission valve passes through the connecting line and connects the pneumatics jar, the bleed valve passes through the connecting line and connects the pneumatics jar, the muffler is connected to the other end of bleed valve, the quck -opening valve is still connected to the pneumatics jar, sensor seat is connected to the other end of quck -opening valve, sensor seat's the other end is equipped with the atmospheric valve, be equipped with pressure sensor on the pneumatics jar, the last digital display table of connecting of pressure sensor. Beneficial effect lies in: this calibration equipment can provide the different step pressure sources that are used for inspecing the sensor as required, dynamic pressure sensor and high pressure chest adoption quck -opening valve form, and the good reproducibility, calibration equipment is connected with sensor adoption serial -type, can carry out the check -up of many sensors simultaneously.
Description
Technical field
The utility model relates to a kind of transducer calibration equipment, is specifically related to a kind of dynamic pressure transducer calibration facility.
Background technology
Hydraulic test, prototype run and other need the industry measuring dynamic pressure all to need to use dynamic pressure transducer, the core component of sensors with auxiliary electrode is piezoelectric crystal and integrated circuit, within the scope of the maximum withstand voltage of sensor, when it bears static pressure, output valve is zero, but can measure the changing value of pressure when measured medium produces pulsation.The pulsation of this pressure is harmful to equipment under normal circumstances, and equipment can be caused to shake, and hydraulic also shows as and exports instability, can cause the accidents such as pipelines from bursting time serious.In the leading indicator of hydraulic industry pressure pulse value equipment performance especially.The pressure pulse value measuring the position such as draft tube, top cover is all needed when model test and prototype are run, especially when model test, high-precision dynamic pressure transducer is configured with for measuring pressure fluctuation, but country or industry standard only have equipment to the judgment criteria of pressure fluctuation size, do not have scaling method and the specification of systematic pressure fluctuation sensor.At external (PCB company) the pressure fluctuation sensor calibration instrument of the laboratory common procurements such as water conservancy machinery model examination, this type of instrument price is high.Some laboratories oneself Design and manufacture tester generally adopts membrane process, by film-clamp between high pressure chest and low pressure chamber, different according to film thickness, make the principle that the pressure of film breaks is different, tester just obtains different Step Pressure sources, the repeatability of mode configuration is bad, and different force value verifications all destroys film, needs repeatedly to change.
Utility model content
The purpose of this utility model provides a kind of dynamic pressure transducer calibration facility.
The technical solution of the utility model is a kind of dynamic pressure transducer calibration facility, it is characterized in that: comprise pneumatics tank, reduction valve, tensimeter, gas admittance valve, connecting line, quick-opening valve, air release, exhaust box, sensor holder, atmospheric valve, digital display meter, pressure transducer, described reduction valve Bonding pressure table, described reduction valve connects gas admittance valve by connecting line, described gas admittance valve connects pneumatics tank by connecting line, described air release connects pneumatics tank by connecting line, the other end joint noise reduction device of described air release, described pneumatics tank also connects quick-opening valve, the other end connecting sensor seat of described quick-opening valve, the other end of described sensor holder is provided with atmospheric valve, described pneumatics tank is provided with pressure transducer, described pressure transducer connects digital display meter.
Further, described digital display meter external data acquisition system.
Further, described sensor holder is also circumscribed with conditioning data acquisition system (DAS).
Further, the volume of described pneumatics tank is greater than 0.1m
3.
According to the characteristic of dynamic pressure transducer, with the verification principle of sensors with auxiliary electrode, design a dynamic pressure transducer tester being applicable to hydraulic model experiment room, tester can be provided for the different Step Pressure sources of test sensors as required, dynamic pressure transducer and high pressure chest adopt quick-opening valve form, reproducible, tester and sensor adopt tandem to be connected, and can carry out the verification of branched sensor simultaneously.In view of each testing laboratory is provided with high-precision signal condition, conditioning data acquisition system (DAS), this equipment does not comprise data acquisition system (DAS).
Pressurized air passes through reduction valve, reduction valve is regulated to obtain the pressure needed according to the numerical value on tensimeter, open gas admittance valve, pressurized air enters pneumatics tank, pressure transducer is recorded air pressure and is exported by digital display meter, because the pressure that digital display meter shows accesses data actuation, therefore host computer also can monitor the numerical value change in pneumatics tank, after pressure in pneumatics tank reaches the force value of demarcating and needing and is stable, close gas admittance valve, sensor holder installed sensor to be calibrated and accesses signal condition instrument, then accessing data actuation.Quick-opening valve is opened fast after everything is ready, sensor can collect a Step Pressure, data actuation can record its peak value, the output valve of pressure transducer also can gather simultaneously, open air release, obtain and close than after last lower nominal pressure, open atmospheric valve, connect after more than 5s until sensor holder and air and close, then repeated acquisition action is to the demarcation number of times required, adopt software by number and simulate compressed air tank actual pressure and dynamic pressure transducer surge pressure two curves, determined the linearity and the precision of dynamic pressure transducer by contrast.
When designing pneumatics tank, capacity is enough large, and after quick-opening valve is opened, high-precision pressure sensor can not have Pressure Drop, and namely pressure drop is outside the error range of sensor.Pressure Sensor Precision on a pneumatics tank order of magnitude higher than dynamic pressure transducer, all parts information model anti-corrosion materials makes, quick-opening valve and sensor holder and as far as possible little with the tank connected pipeline of pneumatics, can reduce the error of tester itself like this.As the benchmark of transducer calibration, outward appearance no less important, whole pipeline and pneumatics tank can be encapsulated in the casing that designs, and digital display meter and tensimeter are embedded on casing, and outside is to exposing valve switch and sensor holder.
The beneficial effects of the utility model are: this calibration facility can be provided for the different Step Pressure sources of test sensors as required, dynamic pressure transducer and high pressure chest adopt quick-opening valve form, reproducible, calibration facility and sensor adopt tandem to be connected, and can carry out the verification of branched sensor simultaneously.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Wherein: 1. pneumatics tank 2. reduction valve 3. tensimeter 4. gas admittance valve 5. connecting line 6. quick-opening valve 7. air release 8. exhaust box 9. sensor holder 10. atmospheric valve 11. digital display meter 12. pressure transducer
Embodiment
Below in conjunction with accompanying drawing, brief description is made to embodiment of the present utility model.
A kind of dynamic pressure transducer calibration facility as shown in Figure 1, it is characterized in that: comprise pneumatics tank 1, reduction valve 2, tensimeter 3, gas admittance valve 4, connecting line 5, quick-opening valve 6, air release 7, exhaust box 8, sensor holder 9, atmospheric valve 10, digital display meter 11, pressure transducer 12, described reduction valve 2 Bonding pressure table 3, described reduction valve 2 connects gas admittance valve 4 by connecting line 5, described gas admittance valve 4 connects pneumatics tank 1 by connecting line 5, described air release 7 connects pneumatics tank 1 by connecting line 5, the other end joint noise reduction device 8 of described air release 7, described pneumatics tank 1 also connects quick-opening valve 6, the other end connecting sensor seat 9 of described quick-opening valve 6, the other end of described sensor holder 9 is provided with atmospheric valve 10, described pneumatics tank 1 is provided with pressure transducer 12, described pressure transducer 12 connects digital display meter 11.
Further, described digital display meter 11 external data acquisition system.
Further, described sensor holder 9 is also circumscribed with conditioning data acquisition system (DAS).
Further, the volume of described pneumatics tank 1 is greater than 0.1m
3.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (4)
1. a dynamic pressure transducer calibration facility, it is characterized in that: comprise pneumatics tank, reduction valve, tensimeter, gas admittance valve, connecting line, quick-opening valve, air release, exhaust box, sensor holder, atmospheric valve, digital display meter, pressure transducer, described reduction valve Bonding pressure table, described reduction valve connects gas admittance valve by connecting line, described gas admittance valve connects pneumatics tank by connecting line, described air release connects pneumatics tank by connecting line, the other end joint noise reduction device of described air release, described pneumatics tank also connects quick-opening valve, the other end connecting sensor seat of described quick-opening valve, the other end of described sensor holder is provided with atmospheric valve, described pneumatics tank is provided with pressure transducer, described pressure transducer connects digital display meter.
2. a kind of dynamic pressure transducer calibration facility according to claim 1, is characterized in that: described digital display meter external data acquisition system.
3. a kind of dynamic pressure transducer calibration facility according to claim 1, is characterized in that: described sensor holder is also circumscribed with conditioning data acquisition system (DAS).
4. a kind of dynamic pressure transducer calibration facility according to claim 1, is characterized in that: the volume of described pneumatics tank is greater than 0.1m
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871442.3U CN205157113U (en) | 2015-11-03 | 2015-11-03 | Dynamic pressure sensor calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871442.3U CN205157113U (en) | 2015-11-03 | 2015-11-03 | Dynamic pressure sensor calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205157113U true CN205157113U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520871442.3U Active CN205157113U (en) | 2015-11-03 | 2015-11-03 | Dynamic pressure sensor calibration equipment |
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| CN (1) | CN205157113U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560790A (en) * | 2017-09-28 | 2018-01-09 | 西安航天动力试验技术研究所 | Pressure transducer vapour-pressure type field calibration device |
| CN110849539A (en) * | 2019-11-27 | 2020-02-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Calibration device for pressure measurement system with tube cavity |
| WO2022114975A1 (en) * | 2020-11-30 | 2022-06-02 | Marek Bronowski | A probe for the spatial testing of pressure forces, a method of producing the probe, a diagnostic kit for the spatial testing of pressure forces and a method of calibrating the probe |
-
2015
- 2015-11-03 CN CN201520871442.3U patent/CN205157113U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560790A (en) * | 2017-09-28 | 2018-01-09 | 西安航天动力试验技术研究所 | Pressure transducer vapour-pressure type field calibration device |
| CN110849539A (en) * | 2019-11-27 | 2020-02-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Calibration device for pressure measurement system with tube cavity |
| CN110849539B (en) * | 2019-11-27 | 2021-04-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | Calibration device for pressure measurement system with tube cavity |
| WO2022114975A1 (en) * | 2020-11-30 | 2022-06-02 | Marek Bronowski | A probe for the spatial testing of pressure forces, a method of producing the probe, a diagnostic kit for the spatial testing of pressure forces and a method of calibrating the probe |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |