摘要
应力应变测量中,应变信号非常微弱,只有微伏级,因此很容易受到外界干扰导致数据无效。文章分析了电阻式应变计的工作原理,从多个角度提出了影响应变测量结果的因素,并提出了修正措施。
It is difficult to measure strain signal due to the signal is very weak and sensitive to outside interference.The article analyzes the working principle of the resistive strain gauge,proposes the factors affecting the strain measurement results from several angles,and proposes corrective measures.
出处
《计量与测试技术》
2019年第12期62-64,共3页
Metrology & Measurement Technique
关键词
应力应变
应变片
泊松比
strain
strain gauge
poisson’s ratio
