FIBER OPTIC GYRO WITH SLOW CLOCKED COUNTER ENHANCED DIGITAL OUTPUT

摘要

In a closed loop type fiber optic gyro the number of waves of a ramp voltage for providing a phase difference between right-handed light and left-handed. light which pass through an optical fiber coil is counted, the ramp voltage is converted into a digital value, and the digital value is used as a fraction of the calculated number of waves of the ramp voltage, thereby improving the accuracy of the azimuth angle being measured.