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A Dynamic Calibration Device for Pressure Measuring Sensor in Gun Bore

A measurement sensor and dynamic calibration technology, which is applied in the direction of measuring devices, measuring fluid pressure, instruments, etc., can solve the problems of reduced pressure measurement accuracy and poor calibration accuracy in the gun bore, and achieve improved impact pressure, high work efficiency, and meet the requirements of increased pressure. The effect of pressing

Inactive Publication Date: 2016-08-17
中国兵器工业第二0二研究所
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Problems solved by technology

The above-mentioned pressure sensor calibration method generally adopts a static pressure calibration or a semi-dynamic calibration method (that is, a pressure device is used to apply static pressure or low-speed impact to the pressure sensor). This calibration state is very different from the instantaneous state of the artillery projectile. Therefore, the calibration accuracy is poor, resulting in a decrease in the measurement accuracy of the gun bore pressure

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  • A Dynamic Calibration Device for Pressure Measuring Sensor in Gun Bore

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Embodiment Construction

[0013] Referring to the accompanying drawings, it has an air cannon (P) and a percussion supercharger (Q) opposite to the air cannon. A standard pressure sensor (1) and a calibrated pressure supercharger are installed on the percussion supercharger. For the sensor (2), the signal output ends of the standard pressure sensor and the calibrated pressure sensor are respectively connected to a data processor through an adapter A and an adapter B. The air cannon is a mature technology, and generally includes a gun barrel (11), a high-pressure chamber (12), a pressure console (13) and an air source (14). When firing, put the projectile (10) into the gun barrel, then set the speed of the projectile through the pressure console, and control the air pressure in the high-pressure chamber according to the setting, so that it will generate instantaneous high pressure, thereby pushing the projectile to the set The motion speed of the shot.

[0014] Referring to the drawings again, the impa...

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Abstract

The invention provides a dynamic calibration device of a measuring sensor of the breech pressure of artillery. The dynamic calibration device is provided with an air cannon and an impact supercharger which is opposite to the air cannon. A standard pressure sensor and a calibrated pressure sensor are arranged on the impact supercharger. The signal output end of the standard pressure sensor and the signal output end of the calibrated pressure sensor are connected with a data processor through an adaptor A and an adaptor B respectively. The dynamic calibration device simulates the firing state of the artillery, namely a shell discharged by the air cannon collides with the impact supercharger, the standard pressure sensor and the calibrated pressure sensor which are installed on the impact supercharger are used for simultaneously sensing the impact pressure at the moment, and then the pressure curves of the two pressure sensors are obtained through measurement; in this way, calibration of the pressure sensors in the dynamic state is achieved. The dynamic calibration device greatly improves the calibration precision of the measuring sensor of the breech pressure of the artillery.

Description

technical field [0001] The invention relates to a calibration device for a pressure measurement sensor in a gun bore, in particular to a dynamic calibration device for a pressure measurement sensor in a gun bore. Background technique [0002] In artillery research, the measurement of the pressure inside the artillery chamber is an important index to measure the shooting characteristics and ballistic characteristics of the artillery. In the process of development, production, maintenance and performance appraisal of shooting weapons, the measurement of chamber pressure is also crucial and necessary. Generally, the pressure measurement in the gun bore is to install the pressure sensor on the tail end wall of the ammunition part of the artillery projectile. When firing, the pressure in the gun bore is directly measured through the output of the pressure sensor. The above-mentioned pressure sensor calibration method generally adopts a static pressure calibration or a semi-dynam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L27/00
Inventor 李宗贤石萍翟鑫李勇赵美丽岳文龙郭竞尧丁良华李逢曹志荣宋巍王颖赵红瑞王晓峰
Owner 中国兵器工业第二0二研究所
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