The study and progress in four-mode differential ring laser gyro
- Received Date: 1992-09-28
- Accepted Date: 1993-01-28
- Available Online: 1993-05-25
Abstract: The Four mode Differential Ring Laser Gyro (FDRLG) has advanced principles and a special advantage of eliminating the lockin effect which occurs at low rotation rates.As a result of its great vitality,FDRLG has become the coming generation laser gyroscope of Litton System Inc.,one of the main companies of gyroscope in USA.The study and manufacture of FDRLG,conforming to the conditions of our country,have successfully gone through two stages of principle and experimental specimen machines,and now have got into engineering stage.The practical FDRLG will be made by us in the near future.Proceed from the principle and characteristic of FDRLG,this paper introduces the study and progress of FDRLG at home and abroad.Many of new schemes and new advances of FDRLG are especially analysed.