Gunpowder gas pressure test calibration method
A gas pressure and calibration method technology, which is applied in ammunition testing, fluid pressure measurement, ammunition, etc., can solve the problems of different pressure durations, wide range of chamber pressure changes, large measurement errors, etc., and achieve the goal of improving test accuracy Effect
Active Publication Date: 2020-04-17
中国人民解放军63856部队
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Problems solved by technology
[0003] This calibration method has a large measurement error in practical applications, because the chamber pressure of the weapon varies widely, the duration of the pressure varies, and the test process is often accompanied by harsh environmental conditions such as high temperature and vibration. It is inevitable and must be considered in the calibration process, and on-site calibration is required
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Embodiment 1
[0027] see figure 1 , in an embodiment of the present invention, a propellant gas pressure test calibration method, comprising the following steps:
[0028] A propellant gas pressure test calibration method, comprising the following steps:
[0029] S1, clamp the ballistic gun for calibration in the fixed frame on the fixed shooting platform, the structure of the fixed frame is as attached in the manual figure 1 As shown, wherein the fixed frame 1 includes a fixed bracket A2 and a fixed bracket B3, and the calibration system 4 and the test system 5 are connected as required (in this embodiment, the calibration system 4 includes a standard pressure sensor Kistler6123BK type, a standard charge amplifier Kistler5011B11Y50 type, data Acquisition card and computer, test system 5 includes test pressure sensor Kistler6215 type, charge amplifier Kistler5011B11 type, data acquisition card and computer, calibration system and test system can share the same data acquisition card and comp...
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The invention discloses a gunpowder gas pressure test calibration method, and relates to the technical field of pressure calibration. By selecting calibration ammunition similar to test ammunition, consistent calibration environment and test environment, the temperature of the ammunition is controlled to realize the condition that a calibration pressure range covers a test pressure range, unqualified data are removed by combining data pre-processing and consistency check, a sensitivity equation is obtained in a mode of performing second-order fitting by using multi-point data for testing, theaccuracy of gunpowder gas pressure tests is comprehensively improved, and test results are better than 2% FS requirements of the military standard. According to the gunpowder gas pressure test calibration method, the problem that the pressure calibration lacks an on-site calibration method and the laboratory calibration test accuracy is poor are solved.
Description
technical field [0001] The invention relates to the technical field of pressure calibration, in particular to a propellant gas pressure test calibration method. Background technique [0002] The current calibration of the gunpowder gas pressure test system is completed by the National Metrology Laboratory under standard experimental conditions. The static pressure generator is used as the calibration source to mainly measure the correspondence between the multi-point static pressure and the output voltage value of the test sensor to obtain the test sensor. The sensitivity equation is used in the actual gunpowder gas pressure test. [0003] This calibration method has a large measurement error in practical applications, because the chamber pressure of the weapon varies widely, the duration of the pressure varies, and the test process is often accompanied by harsh environmental conditions such as high temperature and vibration. It is inevitable and must be considered in the c...
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IPC IPC(8): F42B35/02G01L27/00
CPCF42B35/02G01L27/002
Inventor 景春阳杜炽旭经哲刘石刘宝华孟祥会张欣欣张宇峰朱建国张成吉葛鑫欣曲生辉
Owner 中国人民解放军63856部队