波纹管正弦压力发生技术研究  

Research on Sinusoidal Pressure Generation Technology of Bellows

作　　者：李天然 王洪博[1] LI Tianran;WANG Hongbo(Changcheng Institute of Metrolocy and Measurement,Beijing 100095,China)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095

出　　处：《计测技术》2021年第1期42-47,共6页Metrology & Measurement Technology

基　　金：国家“十三五”技术基础科研项目(JSJL2018205B007)。

摘　　要：针对压力传感器在低温环境下的动态校准需求,以波纹管为核心元件,设计了一种正弦压力发生器,其在常温和低温环境下都具有良好的密封性,生成的正弦压力范围能够覆盖正压与负压。通过改变正弦压力发生器的各项结构参数并进行实验,经分析验证,最终得到了计算正弦压力幅值的经验公式,确定了波纹管作为正弦压力发生器的可行性。Aiming at the requirement of dynamic calibration of pressure sensor in low temperature environment,a sine pressure generator is designed with bellows as the core components.The pressure generator has good tightness at either room temperature or low temperature.The sine pressure generated by the pressure generator ranges from positive pressure to negative pressure.We adjust the structural parameters of the sine pressure generator and conduct the test.We demonstrate and modify the conclusion of theoretical analysis by the experimental data.Finally,the empirical formula for calculating the amplitude of sine pressure is obtained.The feasibility of bellows as sine pressure generator is proved.

关 键 词：波纹管 正弦压力 压力传感器 

分 类 号：TB9[一般工业技术—计量学]