日本宇宙开发事业团在航空宇宙技术研究所和日本航空电子工业公司配合下正在进行研制的环形激光陀螺。准备用于预定在1991年发射的 H-Ⅱ运载火箭捷联式惯导装置。这种陀螺性能好、精度高、回转速率检测范围宽。日本是从1978年开始研制激光陀螺的。1981年研制出第一台样机,重量3.1公斤,尺寸184×170×80毫米,三角形结构,光路长度33厘米。1983年 Japan Space Development Corporation in the Institute of Aerospace Technology and Japan’s avionics company is under development ring laser gyro. H-II launch vehicle strapdown inertial navigation devices intended for launch in 1991. This gyro has good performance, high precision, slew rate detection range. Japan has been developing laser gyros since 1978. In 1981 developed the first prototype, weighing 3.1 kg, size 184 × 170 × 80 mm, triangular structure, the optical path length of 33 cm. 1983