Fiber Optic Gyro INS
NS-FGI1100 Fiber optic inertial navigation systemFGI1100 Inertial navigation system using triaxial fiber optic gyro sensitive vector angular motion,Website:, the proportion of digital signal output with the carrier movement angular rate; three orthogonal collocation of quartz flexure accelerometer gauge carrier sensitive linear acceleration, output with the proportion of current signal and current after I-F conversion circuit switching frequency signal input navigation computer. Computer navigation gyro, accelerometer, external data of GPS receiver, system error compensation calculation, navigation solution and to the provisions of the cycle guide through the monitoring port for external sending real-time speed, position, attitude and navigation information.The initial alignment of FGI1100 is divided into two modes: static alignment and double position alignment. The position accuracy of the two position alignment is higher than that of the static alignment. FGI1100 inertial navigation systemPure inertial modeGNSS assisted navigation mode（External receiver）Azimuth alignment accuracy≤ 0.1° sec lat（1σ）Azimuth alignment accuracy≤ 0.1° sec lat（1σ）Horizontal attitude alignment accuracy≤ 0.02°（1σ）Horizontal attitude alignment accuracy≤ 0.02°（1σ）Azimuth holding accuracy0.05° /hAzimuth holding accuracy≤0.05°sec lat（1σ）Horizontal attitude holding accuracy0.03° /hHorizontal attitude holding accuracy≤ 0.01°（1σ）Positioning accuracy（50%CEP）≤ 2nm/h (10min Static alignment )Positioning accuracy≤ 5m（1σ）Horizontal velocity precision（RMS）≤ 2m/s (10min Static alignment )Speed accuracy≤ 0.1m/s（1σ）Positioning accuracy（50%CEP）≤ 1nm/h（Two position alignment,Alignment time is less than 30min）Horizontal velocity precision（RMS）≤ 1m/s（Two position alignment,Alignment time is less than 30min）Power and environmentData measurement frequencyMaximum 100HzPower Supply23~31V DC Power Supply,Nominal Supply Voltage27VPowerNormal temperature steady-state power consumption is less than 17W,High and low temperature steady-state power consumption is less than 20W,Start transient power consumption is less than 50W Working Temp-40° C~+60°CStorge Temp-45° C~+80° CInstallment Dimension180mm×180mm×160mmQuality ﹤6kgFiber optic gyroscope indexQuartz accelerometer indexTime to Prepare≤ 15s Measurement Range：-20g~+20g Bias Stability（the average time 100s）≤ 0.02 ° /h(1σ) The Threshold Value：≤ 5×10-6g Bias repeatability（Stable environment,average time 100s）Bias：≤6×10-3g≤ 0.02 ° /h(1σ) Scale Factor Repeatability：≤ 3.5×10-5(1σ) Random Walk Coefficient≤ 0.005° / √ Hz Scale Factor Temperature Coefficient：≤ 6×10-5/° C(-40° C~+60° C) Scale Factor Nonlinearity≤ 50ppmThe Second Order Nonlinear Coefficient：≤ 3×10-5g/g2 Scale Factor Repeatability≤ 50ppm(1σ)Bias：≤ 6×10-3g Gyro Measurement Range≥ ±300° /s Bias Repeatability：≤ 2.5×10-5g (1σ) Bias Temp Coefficient：≤ 2.5×10-5g/° C(-40° C ～ +60° C) Band width：≥ 800Hz
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