CN213481622U - Simple shock tube for calibration of shock wave pressure sensing system - Google Patents
Simple shock tube for calibration of shock wave pressure sensing system Download PDFInfo
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- CN213481622U CN213481622U CN202022990676.3U CN202022990676U CN213481622U CN 213481622 U CN213481622 U CN 213481622U CN 202022990676 U CN202022990676 U CN 202022990676U CN 213481622 U CN213481622 U CN 213481622U
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Abstract
The utility model provides a plain type shock tube for shock wave pressure sensing system rise time calibration, including air pump, check valve, ball valve, manometer, high-pressure section body, diaphragm, low pressure section body, sensor and data acquisition device, the flange department that high-pressure section body and low pressure section body link to each other has the diaphragm, the manometer is installed to the high-pressure section body, high-pressure section body outside flange tip has the ball valve, the air pump connects the ball valve again after the check valve through the pipeline, low pressure section body outside flange tip has the sensor and connects data acquisition device through the connecting wire. The utility model provides a plain type shock tube for shock wave pressure sensing system rise time calibration, this shock tube overall structure is simple, and the operation is light, and the mobility is strong, can make things convenient for the calibration.
Description
Technical Field
The utility model relates to a test measurement equipment field especially involves a plain type shock tube that is used for shock wave pressure sensing system calibration.
Background
The pressure sensor is widely applied to the fields of aviation, aerospace, weaponry and the like. The dynamic characteristics of the sensor are particularly important, the working bandwidth of the system is often determined, and the dynamic characteristics of the sensor need to be calibrated to accurately grasp the dynamic performance of the sensor in order to determine the working bandwidth of the system. The purpose of dynamic calibration is to obtain the dynamic characteristics (such as dynamic mathematical model and dynamic performance index) of the sensor system by exciting all the modes of the calibrated sensor through a specific excitation signal. However, since the conventional shock tube is bulky, heavy, and sometimes immobile, and is inconvenient for field calibration, the applicant designs a simple shock tube which is mobile and suitable for field operation and is used for calibrating a shock wave pressure sensing system, and the simple shock tube is mainly used for calibrating the rise time of the sensor system.
SUMMERY OF THE UTILITY MODEL
To solve the above existing problems. The utility model provides a plain type shock tube for shock wave pressure sensing system calibration, this shock tube overall structure is simple, and the operation is light, and the mobility is strong, is applicable to open-air practicality, can calibrate polytype shock wave pressure sensing system (if wall pressure, free field).
The utility model provides a plain type shock tube for shock wave pressure sensing system calibration, including air pump, check valve, ball valve, manometer, high-pressure section body, diaphragm, low-pressure section body, sensor and data acquisition device, the flange department that high-pressure section body and low-pressure section body link to each other has the diaphragm, the manometer is installed to the high-pressure section body, high-pressure section body outside flange tip has the ball valve, the air pump connects the ball valve again after the check valve through the pipeline, low-pressure section body outside flange tip has the sensor and connects data acquisition device through the connecting wire.
As a further improvement, the high pressure section body and the low pressure section body are all supported fixedly through the fixed bolster, the fixed bolster is adjustable support, can use adjustable support to support fixedly as required.
As a further improvement of the utility model, the model of the pressure gauge is YZ-B80, and the model of the sensor is a 113B series and 211 series reflection pressure sensor produced by PCB company and Qishile company.
The utility model relates to a plain type shock tube for shock wave pressure sensing system calibration, this shock tube includes the air supply, the check valve, the tee bend, the ball valve, the silencer, the fixed bolster, the manometer, the pvc pipe, the pvc flange, sensor flange and diaphragm, the air supply gets into high-pressure section pvc pipe through the check valve for gas during the use, when manometer pressure shows that to reach certain pressure, high-pressure section pvc pipe gas pressure breaks the diaphragm and breaks, gas gets into low-pressure section pvc pipe, data is gathered through sensor connection data acquisition device, data processing is being carried out, data output, this application shock tube dynamic pressure standard adopts step pressure to examine and determine pressure sensor, it can produce the step pressure that the rise time is nanosecond level, can be used for detecting and demarcating dynamic pressure sensor's amplitude-frequency characteristic (rise time tr, the set-up time ts, frequency ω d) Dynamic sensitivity coefficient KS, overshoot Delta and other parameters.
Drawings
FIG. 1 is a schematic diagram of the shock tube testing principle and system configuration of the present invention;
illustration of the drawings:
1. an air pump; 2. a one-way valve; 3. a ball valve; 4. a pressure gauge; 5. a high pressure section pipe body; 6. fixing a bracket; 7. a membrane; 8. a low pressure section pipe body; 9. a sensor; 10. a data acquisition device.
Detailed Description
The invention will be described in further detail with reference to the following detailed description and accompanying drawings:
the utility model provides a plain type shock tube for shock wave pressure sensing system calibration, this shock tube overall structure is simple, and the operation is light, and the mobility is strong, can make things convenient for the calibration.
An embodiment of the utility model discloses, the utility model provides a plain type shock tube for shock wave pressure sensing system calibration, including air pump 1, check valve 2, ball valve 3, manometer 4, high-pressure section body 5, diaphragm 7, low pressure section body 8, sensor 9 and data acquisition device 10, the flange department that high-pressure section body 5 and low pressure section body 8 link to each other has diaphragm 7, manometer 4 is installed to high-pressure section body 5, 5 outside flange tip of high-pressure section body have ball valve 3, ball valve 3 is reconnected after air pump 1 connects check valve 2 through the pipeline, 8 outside flange tip of low pressure section body have sensor 9 and connect data acquisition device 10 through the connecting wire.
As a specific embodiment of the utility model, the utility model provides a simple shock wave tube for shock wave pressure sensing system calibration as shown in figure 1, which comprises an air pump 1, a check valve 2, a ball valve 3, a pressure gauge 4, a high pressure section tube 5, a diaphragm 7, a low pressure section tube 8, a sensor 9 and a data acquisition device 10, wherein the diaphragm 7 is arranged at the flange where the high pressure section tube 5 and the low pressure section tube 8 are connected, the high pressure section tube 5 and the low pressure section tube 8 are both supported and fixed through a fixed support 6, the fixed support 6 is an adjustable support, the adjustable support can be used for supporting and fixing according to requirements, the high pressure section tube 5 is provided with the pressure gauge 4, the ball valve 3 is arranged at the flange end part at the outer side of the high pressure section tube 5, the air pump 1 is connected with the check valve 2 through a pipeline and then is connected with the ball valve 3, the flange end part at the outer side of the low pressure section tube 8 is provided, the model of the pressure gauge is YZ-B80, the model of the sensor is 113B26, and the pressure gauge with the model of YZ-B80 and the sensor with the model of 113B26 are generally used in the application.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, but also to cover any modifications or equivalent changes made in the technical spirit of the present invention, which fall within the scope of the present invention.
Claims (5)
1. The utility model provides a plain type shock tube for shock wave pressure sensing system calibration, includes air pump (1), check valve (2), ball valve (3), manometer (4), high-pressure section body (5), diaphragm (7), low-pressure section body (8), sensor (9) and data acquisition device (10), its characterized in that: the high pressure section body (5) and the flange department that low pressure section body (8) link to each other have diaphragm (7), manometer (4) are installed to high pressure section body (5), high pressure section body (5) outside flange tip has ball valve (3), ball valve (3) are connect again behind air pump (1) through the pipeline connecing check valve (2), low pressure section body (8) outside flange tip has sensor (9) and connects data acquisition device (10) through the connecting wire.
2. The shock simplex for calibration of a shock wave pressure sensing system of claim 1, wherein: the high-pressure section pipe body (5) and the low-pressure section pipe body (8) are supported and fixed through a fixing support (6).
3. The shock simplex for calibration of a shock wave pressure sensing system of claim 2, wherein: the fixed support (6) is an adjustable support.
4. The shock simplex for calibration of a shock wave pressure sensing system of claim 1, wherein: the model of the pressure gauge (4) is YZ-B80.
5. The shock simplex for calibration of a shock wave pressure sensing system of claim 1, wherein: the type of the sensor (9) is 113B 26.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022990676.3U CN213481622U (en) | 2020-12-14 | 2020-12-14 | Simple shock tube for calibration of shock wave pressure sensing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022990676.3U CN213481622U (en) | 2020-12-14 | 2020-12-14 | Simple shock tube for calibration of shock wave pressure sensing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213481622U true CN213481622U (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022990676.3U Active CN213481622U (en) | 2020-12-14 | 2020-12-14 | Simple shock tube for calibration of shock wave pressure sensing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459674A (en) * | 2021-12-29 | 2022-05-10 | 中国人民解放军国防科技大学 | Dynamic calibration method and system for amplitude-frequency characteristics of high-frequency pressure sensor |
| CN114674481A (en) * | 2022-03-29 | 2022-06-28 | 中国人民解放军国防科技大学 | Passive measuring device and measuring method for impulse of free field shock wave in water |
-
2020
- 2020-12-14 CN CN202022990676.3U patent/CN213481622U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459674A (en) * | 2021-12-29 | 2022-05-10 | 中国人民解放军国防科技大学 | Dynamic calibration method and system for amplitude-frequency characteristics of high-frequency pressure sensor |
| CN114674481A (en) * | 2022-03-29 | 2022-06-28 | 中国人民解放军国防科技大学 | Passive measuring device and measuring method for impulse of free field shock wave in water |
| CN114674481B (en) * | 2022-03-29 | 2024-04-19 | 中国人民解放军国防科技大学 | Passive measuring device and measuring method for impulse of free field shock wave in water |
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