Method for metering sensitivity of electronic pressure detector

A manometer and sensitivity technology, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve the problems of long dynamic calibration period of electronic manometers, labor-intensive, material and financial resources, etc.

Inactive Publication Date: 2008-12-31
ZHONGBEI UNIV
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Problems solved by technology

The dynamic calibration period of the electronic pressure gauge...

Method used

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  • Method for metering sensitivity of electronic pressure detector
  • Method for metering sensitivity of electronic pressure detector
  • Method for metering sensitivity of electronic pressure detector

Examples

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Effect test

Embodiment 1

[0027] Embodiment 1. Method for Measuring the Sensitivity of an Electronic Manometer

[0028] The method for measuring the sensitivity of the electronic manometer described in this example is to use the rising edge data of the pressure curve to measure the sensitivity of the electronic manometer. In summary, the method is: select the pressure value of the full scale of the pressure measured by the electronic manometer as the calibration pressure, For example, select a pressure value between 100% and 110% of the full scale of the pressure measured by the electronic manometer for calibration of the pressure range. The calibrated electronic manometers were dynamically calibrated at normal temperature, high temperature and low temperature respectively. When the three standard manometry systems and the calibrated electronic manometers were all calibrated and valid, the three standard manometry systems were used to The measured average pressure curve and the rising edge data of the ...

Embodiment 2

[0035] Embodiment 2. Method for Measuring the Sensitivity of an Electronic Manometer

[0036] The method for measuring the sensitivity of the electronic manometer described in this example is to use the average pressure curve measured by three sets of standard manometer systems and the rising edge data of the calibrated manometer test curve to obtain the calibrated manometer sensitivity. The specific steps of the method in this example are as follows figure 1 The steps of the flow chart of the metering electronic manometer sensitivity method shown, the difference between the method of this example metering electronic manometer sensitivity and embodiment one has: 1. in 12 steps: in the pressure curve y i Take n data points according to the range of 15-100% of the peak pressure (choose an odd number of 300>n>200, such as choosing n==203, 205,..., 297, 299, etc.) data points, also in the test curve yy i+j Take n data points for the rising edge (select an odd number of 300>n>200...

Embodiment 3

[0037] Embodiment three. The method for measuring the sensitivity of the electronic manometer

[0038] The method for measuring the sensitivity of the electronic manometer described in this example is to use the average pressure curve measured by three sets of standard manometer systems and the rising edge data of the calibrated manometer test curve to obtain the calibrated manometer sensitivity. The specific steps of the method in this example are as follows figure 1 The steps of the flowchart of the method for measuring the sensitivity of the electronic manometer shown, the method for measuring the sensitivity of the electronic manometer in this example has different points from Embodiment 1 and Embodiment 2: 1. In 12 steps: in the pressure curve y i Take n data points according to the range of 15-100% of the peak pressure (choose an even number of 300>n>200, such as choosing n==202, 204,..., 296, 298, etc.) data points, also in the test curve yy i+j Take n data points for...

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Abstract

The invention relates to a method for measuring the sensitivity of an electronic manometer, which belongs to the technical field of electronic measurement. The method comprises the following steps: a pressure value with the measuring pressure of full scale is selected as base measuring pressure; dynamic calibration to the electronic manometer to be calibrated is carried out respectively under normal temperature, high temperature and low temperature environments; under the condition that three sets of standard pressure-measuring systems and the electronic manometer to be calibrated are all effectively calibrated, an average pressure curve measured by the three sets of standard pressure-measuring systems and the rising edge data of the curve measured by the calibrated electronic manometer are utilized to compute to obtain the sensitivity of calibrated electronic manometer. The method of the invention has simple operation, the calibration only needs to be carried out for three times respectively under the normal temperature, the low temperature and the high temperature, the sensitivity coefficient of the electronic manometer under the three temperature environments can be obtained by the calibration of nine times; compared with the existing measuring method, the method of the invention lowers the calibrating period, improves the working efficiency, reduces the testing expenses and the item cost, has precise and reliable result, and is the result of innovative thinking. The method for measuring the sensitivity of the electronic manometer is worthy of being adopted and generalized in the industry.

Description

1. Technical field [0001] The method for measuring the sensitivity of an electronic manometer disclosed by the invention belongs to the technical field of electronic measurement, and specifically relates to a method for measuring the sensitivity of an electronic manometer by using the rising edge data of a pressure curve. 2. Background technology [0002] The electronic pressure gauge is suitable for automatically measuring the gun bore pressure curve during the firing process of medium and large caliber guns and ammunition, so as to obtain the internal ballistic parameters of the gun. It has the advantages of high precision and convenient use. In order to ensure the test accuracy of the electronic pressure gauge, it must undergo strict dynamic calibration before leaving the factory. The principle of dynamic calibration is to place the calibrated electronic pressure gauge in the dynamic calibration device before calibration. The dynamic calibration device is equipped with th...

Claims

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Application Information

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IPC IPC(8): G01L27/00
Inventor 祖静张瑜裴东兴沈大伟张红艳尤文斌
Owner ZHONGBEI UNIV
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