Experimental research of fiber-optic sensor for ESG

Based on the development of the optic-fiber sensor’s working sample for the ESG,the signal-obtaining research and experiments have been carried out,which show that the fiber-optic sensor is fit for the precision requirement of the ESG system.Some related factors are analyzed which may have influence on signal-obtaining.Several key parameters for the fiber-optic collimator are designed and some advise are given which is helpful for the fiber-optic sensor’s application.