首页>
外国专利>
FIBER OPTIC GYROSCOPE WITH A LARGE DYNAMIC RANGE OF MEASUREMENT OF ANGULAR SPEEDS
FIBER OPTIC GYROSCOPE WITH A LARGE DYNAMIC RANGE OF MEASUREMENT OF ANGULAR SPEEDS
展开▼
机译:具有大动态范围测量角速度的光纤陀螺仪
展开▼
页面导航
摘要
著录项
相似文献
摘要
FIELD: physics.;SUBSTANCE: fiber optic gyroscope is a fiber ring interferometer consisting of a sensitive coil and an electronic information processing unit formed by an analog block and a digital electronics unit. The digital electronics unit includes an analog-to-digital converter, a programmable logic integrated circuit and a digital-to-analog converter, as well as the first and second feedback loops. And in the digital block the algorithm of auxiliary phase modulation between optical beams of the ring interferometer is realised, and the feedback loops provide linearity of the output characteristic. Auxiliary phase modulation is performed by changing the auxiliary modulation voltage codes in the digital unit. Using stepwise sawtoothed voltage to compensate for the Sagnac phase difference with phase amplitude of 2π radians.;EFFECT: expansion of dynamic range measurement of angular speeds of the fiber optic gyroscope.;3 cl, 6 dwg
展开▼