2270型压电加速度计安装方向对测量结果影响的研究  

Research of the Installation Direction’s Influence of 2270 Piezoelectric Accelerometer on Sensitivity

作　　者：张洁文[1] 张强[1] 刘科[1] ZHANG Jiewen;ZHANG Qiang;LIU Ke(Metrology and Testing Center,China Acadermy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]中国工程物理研究院计量测试中心,四川绵阳621900

出　　处：《计测技术》2020年第4期36-39,共4页Metrology & Measurement Technology

摘　　要：2270型压电式加速度计通常会被用作标准加速度计开展量传工作,其安装方向会对测量结果产生较大的影响。为研究安装方向与测量结果的关系,介绍了压电加速度计的工作原理和结构形式,讨论了安装方向及安装谐振频率对于被校压电加速度计灵敏度的影响,并进行试验研究。结果表明,2270型压电式加速度计合理的安装方向能够保证加速度计灵敏度有良好的频率响应特性以及幅值线性度。2270 piezoelectric accelerometer is usually used as a standard accelerometer to develop the measurements and transmission works,which will have a great impact on the measurement results if the installation direction is unreasonable. In order to research the relationship between its installation direction and measurement results,the working principle and its structure are analyzed firstly. The influence of installing resonance frequency on its sensitivity and the relationship between its installation direction and installing resonance frequency are discussed secondly. The experimental research is carried out at last. It shows that reasonable installation direction can ensure excellent frequency response and amplitude linearity of the accelerometer sensitivity in different applications.

关 键 词：压电加速度计 安装方向 谐振频率 灵敏度 

分 类 号：TB934[一般工业技术—计量学] TM825[机械工程—测试计量技术及仪器]