激光陀螺仪的原理与应用PPT文档.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,The P,rinciple and,A,pplication,of R,ing,L,aser,G,yro,1,1,B,ackground,2,Gyroscope:,A,sensor,which has the,ability to,perceive the running speed and maintain the direction of the type,.,3,I,nertial components,Inertia measurement,I,nertial navigation,I,nertial stabilization,I,nertial guidance,Inertial device is the core of the inertial technology,4,Traditional inertial gyro has a high requirement on the,process structures,complex structure,and the precision is restricted.,R,ing 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,R,ing laser gyro,5,Fiber optic gyro,R,ing laser gyro,RLGs,zero bias and scale factor,of the system parameters,are,stability compared with,FOG,so the calibration difficulty relatively easy.,T,he optical path of,RLG,must be kept in,a solid component,so the degree of,FOG,on the surrounding environment sensitive,r,than,RLG,.,RLG,has some inherent drawbacks,such as,mirrors,gas,and under the condition of low speed,it is easy,to closure,.,The,precision,of RLG is,high,but,the,price,also high,.,6,1,B,ackground,2,B,asic principle,7,Rotation free condition,two beams of light transmission time,which is,Under,the condition of rotating,8,The,time,of t,wo directions,Transmission time,9,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,10,The actual model,-,laser gyro relative interferometer,11,1,B,ackgroun,d,2,B,asic principle,3,M,ain application,12,Most of the,aircraft and civil aviation,abroad,F-22,F-35,SU-30 aircraft,B747 and A320 civilian planes,Conventional weapons,such as tanks,artillery,Latin howitzer,Swedish BKAN1A and FH-77-b howitzers,Precision measurement reconnaissance vehicles,All kinds of,tactical and strategic missiles,Small intercontinental ballistic missiles dwarf,The Block III tomahawk cruise missile.,Observe the,tiny seismic effect,and,the,solid ground tidal effect,13,1,B,ackground,2,B,asic principle,3,M,ain application,4,R,esearch status,14,The research status of abroad,For the first time in 1963,the Sperry,the company successfully developed the ring laser gyro.,In 1975,Honeywell company developed the mechanical dithering frequency laser gyro,adopting the technology of laser gyro strapdown inertial navigation system truly entered the practical stage.,Early 21st century,Litton company developed the mechanical dithering of four frequency differential laser gyro,the precision can reach 0.001 /h.,Now Honeywells latest GG1389 precision of laser gyro has amounted to 0.00015 /h.,15,Main indicators,16,The domestic research status,1960s,The research started.,In the late 70 s,tsinghua university,national university of defense technology,the first optical instrument factory in suzhou,China academy of sciences,303.,90 years later,the relevant institute successively carried out research work of gyro temperature characteristics and modeling error compensation.,At present,with mirror induced some key technology of manufacturing,technology is mature research unit of national university of defense technology and catic 618.,17,THANKS,18,