ACCELEROMETER FEATURING FIBER OPTIC BRAGG GRATING SENSOR FOR PROVIDING MULTIPLEXED MULTI-AXIS ACCELERATION SENSING

摘要

An accelerometer has a main body in combination with one or more Bragg grating sensors respectively arranged along one or more axes. The main body has a mass that responds to an acceleration in one or more axes. The compression or stretching of a Bragg grating sensor causes a wavelength shift in the optical signal that contains information about the acceleration and that is sensed by a detector.