Title: Calibration measurement method and system for single-frequency steady-state sine machinery vibrating amplitude phase characteristic
Application Number: 200610057227 Application Date: 2006.03.09
Publication Number: 1811355 Publication Date: 2006.08.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01H17/00,G01P21/00
Applicant(s) Name: China Metrological Science Research Inst. Address: 100013
Inventor(s) Name:
Attorney & Agent: wei qiangwen liu menghua
Abstract:
     The present invention belongs to the field of metering measurement technology, in the concrete, it relates to a calibration measurement method of vibration and its calibration measurement system. Said invention provides an improved homodyne time interval method based on general Michelson laser interferometer, said method can reduce the computing quantity due to noise signal and can simplify zero-crossing point position judgment. The invented calibration measurement system includes Michelson laser interferometer, computer and synchronous data acquisition card. Said invention can be used for calibrating work of acceleration sensor.
Time: 11