摘要
为了定期校准冲击波测试用压力传感器的灵敏度,采用阶跃压力发生器对测量气体介质的传感器灵敏度进行动态校准,产生的阶跃压力信号最高压力为7M Pa;采用水动力脉冲发生器对液体介质动态压力传感器的灵敏度进行动态校准,产生的液体脉冲压力信号最高压力幅值为140M Pa,并可由标准比对传感器准确确定幅值。结果表明,两种方法是准确可靠的,与新出厂校准的动态压力测试用传感器的灵敏度进行比较,相对误差不超过0.6%。
In order to calibrate the sensitivity of pressure sensors termly, the dynamic calibration of all sorts of pressure sensors used to measure the dynamic pressure in the medium of gas and liquid is performed by a gas step pressure calibrator with the highest pressure of 7 MPa and a hydraulic impulse calibrator with the highest pressure of 140MPa. According to the studies on the sensor characteristic, the matching between sensor and dynamic calibration device and the value trace to the source of pressure measurement, a good result is obtained. Comparing measurement result with the dynamic pressure sensitivity when leave factory, the relative error is not up to 0. 6%.
出处
《火炸药学报》
EI
CAS
CSCD
2006年第3期62-64,共3页
Chinese Journal of Explosives & Propellants
关键词
爆炸力学
压力传感器
灵敏度
校准
冲击波
explosion mechanics
pressure sensor
sensitivity
calibration
shock wave
