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Traceable calibration method and calibration device for dynamic characteristic of big pressure sensor

A technology of dynamic characteristics and calibration method, applied in the direction of calibration/testing of force/torque/power measuring instrument, measuring device, measuring fluid pressure, etc., to achieve the effect of high calibration pressure value, simple structure, and simple calibration operation

Inactive Publication Date: 2009-02-04
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overcome the defect that other calibration methods cannot take into account high-amplitude pressure and wide-band at the same time, and not damage the sensor during high-pressure calibration, we have studied the calibration method involved in the present invention and designed the calibration device of the present invention

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Examples

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Embodiment 1

[0023] Embodiment 1. Traceable calibration method and calibration device for dynamic characteristics of large pressure sensor

[0024]The traceable calibration method and calibration device for the dynamic characteristics of the large pressure sensor in this embodiment are divided into two parts, one is the traceable calibration device for the dynamic characteristics of the large pressure sensor; the other is the traceable calibration method for the dynamic characteristics of the large pressure sensor.

[0025] 1. Traceable calibration device for dynamic characteristics of large pressure sensors

[0026] The specific structure of the traceable calibration device for the dynamic characteristics of the large pressure sensor in this example is shown in Figure 1, and Figure 2 shows the situation of some test instruments connected or connected with the calibration device in this example. This calibrating device comprises the housing of device and the support 13 of device, and the s...

Embodiment 2

[0029] Embodiment 2. Traceable calibration method and calibration device for dynamic characteristics of large pressure sensor

[0030] The traceable calibration method and calibration device for the dynamic characteristics of the large pressure sensor in this embodiment are divided into two parts:

[0031] 1. Traceable calibration device for dynamic characteristics of large pressure sensors

[0032] The specific structure of the traceable calibration device for the dynamic characteristics of the large pressure sensor in this example is shown in Figure 1, and Figure 2 shows the situation of some test instruments connected or connected with the calibration device in this example. The difference between the traceable calibration device of the dynamic characteristics of the large pressure sensor in this example and the embodiment 1.1 is as follows: 1. If a hydraulic calibration machine is used to apply a static pre-pressure to the calibrated large pressure sensor through the oil c...

Embodiment 3

[0035] Embodiment 3. Traceable calibration method and calibration device for dynamic characteristics of large pressure sensor

[0036] The traceable calibration method and calibration device for the dynamic characteristics of the large pressure sensor in this embodiment are divided into two parts:

[0037] 1. Traceable calibration device for dynamic characteristics of large pressure sensors

[0038] The specific structure of the traceable calibration device for the dynamic characteristics of the large pressure sensor in this example is shown in Figure 1, and Figure 2 shows the situation of some test instruments connected or connected with the calibration device in this example. The difference between the traceable calibration device for the dynamic characteristics of the large pressure sensor in this example and Embodiment 1.1. or Embodiment 2.1. are: 1. The traceable calibration device for the dynamic characteristics of the large pressure sensor in this example, and the adopt...

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Abstract

The invention relates to a method of the dynamic characteristic traceability calibration of a high-pressure transducer, and calibration equipment, belonging to the technical field of pressure transducer. The method is as follows: exerting a static pressure on a high-pressure transducer to be calibrated, for realizing a frequency area to be zero frequency traceability calibration; on the basis, exerting an ultra-short pulse motivating pressure, testing the frequency responding characteristic of the high-pressure transducer through a test or a metrologic instrument. The method has the advantages that the method uses a common hydraulic pressure calibration method to realize the dynamic characteristic traceability calibration of the high-pressure transducer; because of adopting a pre-exerting static pressure processing method, the reversed pressure received by the transducer to be tested is reduced, thus effectively protecting the expensive transducer, and the frequency service range of the calibration method is 0-1MHz; the pressure value is as high as 800MPa, the calibration method is advanced, has the creative thought, is worthy of being popularized and learned; the adopted calibration equipment has simple structure, low cost, safe calibration process, no damage to the transducer, high calibration pressure value and wide frequency service range which can cover the zero frequency for traceability calibration, and the calibration equipment is worthy of being adopted and popularized.

Description

1. Technical field [0001] The traceable calibration method and calibration device for the dynamic characteristics of a large pressure sensor disclosed by the present invention belong to the technical field of pressure sensors, and specifically relate to a traceable calibration method and a calibration device for the dynamic characteristics of a large pressure sensor. The pressure sensor is calibrated, and the pressure sensor can be effectively protected during the calibration process. 2. Background technology [0002] At present, there are many calibration methods for pressure sensors, but the calibration technology with high pressure amplitude and wide frequency band coverage has not made breakthroughs in the world. The pressure and frequency ranges that can be covered by several commonly used high-voltage dynamic calibration devices are as follows: one is the gas shock tube calibration device, and its frequency band covers from 100Hz to 800kHz, but the pressure amplitude i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L25/00G01L27/00
Inventor 祖静范锦彪张红艳杜红棉徐鹏林祖森朱仕永高萍
Owner ZHONGBEI UNIV
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