基于Hopkinson杆的高g值加速度传感器的动态特性分析  

Dynamic characteristic analysis of high-g accelerometers based on Hopkinson bar

作　　者：王华军[1] 王燕[1] 李新娥[1] 

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051

出　　处：《应用光学》2011年第5期1049-1052,共4页Journal of Applied Optics

摘　　要：基于Hopkinson杆激光干涉冲击试验台,分析了高g值加速度传感器的动态特性,主要分析了实现高g值加速度传感器的幅频特性的原理及可行性。该方法采用Hopkinson杆作为高g值加速度信号发生器,并应用激光光栅干涉仪可以精确地获得高g值加速度脉冲的激励波形,再与加速度计的输出联合处理得出传感器的动态校准结果。并用988压电传感器的动态校准结果加以说明。Based on Hopkinson bar laser interference shock test-beds,this paper analyzed the dynamic characteristics of high-g acceleration sensors,discussed the concept and feasibility to achieve the amplitude-frequency characteristics of a high-g accelerometer.This method adopted Hopkinson bar as the shock acceleration generator,applied a laser-grating interferometer to obtain the time history of the input acceleration with high accuracy,and processed the waveform combining with the output of accelerometer to obtain the dynamic calibration results.The dynamic calibration result of 988 piezoelectric sensors was given.

关 键 词：激光干涉仪 动态特性 Hopkinson杆技术 校准 

分 类 号：TN206[电子电信—物理电子学] TM935.21[电气工程—电力电子与电力传动]