Research on Self Calibration Technology for Precision Workpiece Measurement Based on Laser Doppler Vibrometer

摘要

This article introduces the present development status at home and abroad of laser Doppler vibrometer, and analyses the basic principle of self-calibration technique. The one-dimensional self-calibration measurement scheme is designed by laser Doppler vibrometer. Taking gear vibration measurement as an example, four laser Doppler vibrometer are used to construct the self-calibration measurement system. Based on the principle of self-calibration, the system of paraboloid measurement and modification of large satellite antenna and its measurement and modification process are designed.