Laser vibration measurement technology and its application in aerospace field

摘要

As a non-contact measurement method, laser vibration measurement technology has shown great application value in many fields, especially in the field of aerospace. Laser vibration measurement technology is widely used in aerospace engine blade modal and vibration test, solar panel modal test, aerospace device welding process characteristics test and aerospace component damping test. With the help of advanced laser vibration measurement technology, many vibration measurement problems in aerospace field can be solved. This paper introduces the principle and key technology of laser Doppler interferometry vibration measurement technology, which shows that the technology has the advantages of high measurement accuracy. The application status of laser vibration measurement technology in aerospace field is introduced, and the future development trend of laser vibration measurement technology is prospected.