强辐射条件下应变测量的抗干扰技术研究

RESEARCH ON ANTI-INTERFERENCE TECHNIQUE IN STRAIN MEASUREMENT UNDER INTENSE RADIATION CONDITIONS

文章从动力学结构分析应变测量的基本原理入手,着重介绍了国防高科技试验中,在强辐射、强电磁脉冲干扰环境条件下,为保证应变测量的实现,经模拟试验研究,在应变测量时采用了一系列抗干扰技术措施,包括特殊环境条件下所用元器件材料的选择,传感应变计安装方式,组桥接线方式,密封屏蔽等技术。并介绍了这些技术措施在某试验现场应变测试试验中的应用概况.

On the basis of the fundamental principles in the strain measurement and analysis by using (?)mic structure method,this paper emphatically describes a series of anti-interference technical measeres adopted in the strain measurement under the environment conditions of intense radiation and intense electromagnetic pulse interference during a national defense high-tech test,including technique in the seiection of the components and materials,the installation pattern of the sensing strain gauges,bridge combination and wire connection pattern,sealing and shielding etc.for the application under the special environment.In order to realize the strain measurement under such an environment,a number of simulative tests and researches have been made.The paper also gives a brief description of the application of aforesaid technical measures in the strain measurement test on a test site.