激光陀螺仪的原理与应用.ppt

The Principle and Applicationof Ring Laser Gyro 1 Background Gyroscope: A sensor which has the ability to perceive the running speed and maintain the direction of the type. Inertial components Inertia measurement Inertial navigation Inertial stabilization Inertial guidance Inertial device is the core of the inertial technology Traditional inertial gyro has a high requirement on the process structures, complex structure, and the precision is restricted. Ring laser gyro rotor rotating parts, not angular momentum, ring frame, also do not need direction angle sensor moving parts, such as simple structure, long working life, convenient maintenance, high reliability. Traditional gyro Ring laser gyro Fiber optic gyro Ring laser gyro ① RLGs zero bias and scale factor of the system parameters are stability compared with FOG, so the calibration difficulty relatively easy. ② The optical path of RLG must be kept in a solid component, so the degree of FOG on the surrounding environment sensitiver than RLG. ③ RLG has some inherent drawbacks, such as mirrors, gas, and under the condition of low speed it is easy to closure. ④ The precision of RLG is high , but the price also high. 1 Background 2 Basic principle Rotation free condition, two beams of light transmission time, which is, Under the condition of rotating, Partial frequency components Cheng long control component Signal readout system Ring laser Logic circuit The power component The installation structure Electromagnetic shielding cover, etc Constitute of the RLS The actual model ----laser gyro relative interferometer 1 Background 2 Basic principle 3 Main application ① Most of the aircraft and civil aviation abroad F - 22, F - 35, SU - 30 aircraft, B747 and A320 civilian planes ② Conventional weapons such as tanks, artillery Latin howitzer Swedish BKAN1A and FH - 77 - b howitzers Precision measurement reconnaissance vehicles ③ All kinds of tactical and strategic missiles Small in