DOIAbstract
This paper presents a new system for stress analysis, electro-optic modulation, The optical retardation resulting from stress is compensated for by induced birefringence in an electro-optic crystal under an applied voltage. When the compensation is complete the modulation signal changes, which signals that the measurement is complete. The sensitivity of measurement is higher than for other methods, easily less than lambda/10000. In order to accomplish an automatic process, the author also presents a set of magneto-optic equipment which is designed to rotate the direction of principal stress around the optical axis of the system. This process is automatic and does not require a large complex mechanical drive.http://gateway.webofknowledge....
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