CAJ | 학술논문

分析了高g值加速度传感器动态线性的测试原理并对双弹头Hopkinson杆的可靠性进行了验证；同时利用双弹头Hopkinson杆激光干涉冲击试验装置测量了高g值加速度传感器的动态线性。该方法是将双弹头Hopkinson杆作为冲击加速度发生器，用双膛冲击发生器发射两个子弹（分别为内、外弹），当两子弹分别单独与双弹头Hopkinson杆相撞时，通过控制冲击加速度发生器，使产生的加速度脉冲频率相同且峰值分别为a外、a内，测得加速度传感器对应输出加速度峰值分别记为A外、A内；保持相同的发射条件，当内外弹同时与Hopkinson杆相撞时，使两子弹作用于细杆上的冲击加速度脉冲的频率相同且峰值仍分别为a外、a内；根据应力波叠加原理，则叠加后产生的加速度峰值为a总=a外+a内，测得加速度传感器对应输出的加速度峰值记为A总；从而可以求出ΔY=(A外+A内)-A总，通过分析ΔY是否在所要求的范围内来说明被测加速度计的动态线性。
분석료고g치가속도전감기동태선성적측시원리병대쌍탄두Hopkinson간적가고성진행료험증；동시이용쌍탄두Hopkinson간격광간섭충격시험장치측량료고g치가속도전감기적동태선성。해방법시장쌍탄두Hopkinson간작위충격가속도발생기，용쌍당충격발생기발사량개자탄（분별위내、외탄），당량자탄분별단독여쌍탄두Hopkinson간상당시，통과공제충격가속도발생기，사산생적가속도맥충빈솔상동차봉치분별위a외、a내，측득가속도전감기대응수출가속도봉치분별기위A외、A내；보지상동적발사조건，당내외탄동시여Hopkinson간상당시，사량자탄작용우세간상적충격가속도맥충적빈솔상동차봉치잉분별위a외、a내；근거응력파첩가원리，칙첩가후산생적가속도봉치위a총=a외+a내，측득가속도전감기대응수출적가속도봉치기위A총；종이가이구출ΔY=(A외+A내)-A총，통과분석ΔY시부재소요구적범위내래설명피측가속도계적동태선성。
It analyzes the dynamic linear testing principle of high g acceleration sensor and verifies the reliability of the dual warhead Hopkinson bar. At the same time,using dual warhead Hopkinson bar laser interference impact ex?periment device measures the high g acceleration sensor of dynamic linearity. This method is taking dual warhead Hopkinson bar as a signal generator. Firing two bullets(inner and outer) with dual chamber signal generator. When two bullets hit the dual warhead Hopkinson bar respectively,by controlling the impact acceleration generator,pro?duce the same acceleration pulse frequency which peaks are aouter and ainner. The measured output peak acceleration are Aouter and Ainner. Keep the same firing conditions,when the inside and outside bullet impact Hopkinson bar at the same time,the acceleration pulse frequency is the same and the peaks are aouter and ainner. According to the stress wave superposition principle,the peak acceleration of the superposition is atotal=aouter+ainner,the measured acceleration sensor acceleration peak corresponding to the output is Atotal. So we getΔY=(Aouter+Ainner)-Atotal. By analyzing the range ofΔY,evaluates dynamic linearity of accelerometer.