摘要
旋转件应变测量,因引电器的接触电阻而降低了信噪此,甚至掩盖了真实信号。本文通过推论和验证,用自相关函数中随机与周期信号的相关系数之比,确定了测试信号中淹没于接触电阻中应变信号的大小和周期,为提高旋转件应变测试精度,提供了一种方法。
Owing to the contact resistance of conductor in the rotator's strain
gauging signal to noise ratio will be abated and real strain signal even will be covered.
Based on the inferences and verifications using the ratio of probabilistic and periodic
signal in auto correlation coefficient the dim and period of strain signal concealed by
contact resistance will be determined.Hereby a method with higher accuracy in
strain gauging of the rotator is provided.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
1989年第1期50-56,共7页
Chinese Internal Combustion Engine Engineering
关键词
旋转件
应变测试
相关分析
Correlative Analysis
Strain Gauging
Rotator
