Title: Method and device for measuring angular oscillation through laser interference
Application Number: 200610152126 Application Date: 2006.09.14
Publication Number: 1916574 Publication Date: 2007.02.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01H9/00
Applicant(s) Name: China Aviation Ind No.1 Co Address:
Inventor(s) Name: Li Xinliang;Zhang Dazhi;Xue Jingfeng;Xu Xiaomei;Li
Attorney & Agent: li jianyang
Abstract:
    A laser interference measurement method of angular vibration includes forming two parallel measurement lights by collimating and parallel-dividing laser beam with lens and shutter as well as dividing unit, forming diffraction lights of said two measurement lights on grating, superposing and interfering on two diffraction lights and converting them to be voltage signal by lens and mirror as well as optical-electric converter, sending voltage signal to frequency mixing treatment unit then to data collection and processing unit for finalizing measurement of angular vibration.
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