Fiber Optic Inertial Navigation System

ER-FGI1100 Features:
1. uses triaxial fiber optic gyro to sense vector angular motion and output digital signal in proportion tothe carrier movement angular rate;
2. uses three orthogonal collocation of quartz flexure accelerometer to sense carrier linear acceleration and output proportionable current signal ,which is switched to frequency signal though I-F conversion circuit, then input to navigation computer.
3. Computer finished data receipt of navigation gyro, accelerometer and external GPS , system compensation error calculation, navigation solution and externally sending real-time speed, position, attitude and navigation information at fixed the cycle through the monitoring port .

Product Details

Fiber Optic Inertial Navigation System


Introduction

ER-FGI1100 fiber optic inertial navigation system ( Can Replace PHINS related INS products)

ER-FGI1100 uses triaxial fiber optic gyro to sense vector angular motion and output digital signal in proportion tothe carrier movement angular rate; usesthree orthogonal collocation of quartz flexure accelerometer to sense carrier linear acceleration and output proportionable current signal ,which is switched to frequency signal thoughI-F conversion circuit, then inputto navigation computer.Computer finisheddata receipt of navigation gyro, accelerometer and external GPS , system compensation error calculation, navigation solution and externally sending real-time speed, position, attitude and navigation information atfixed the cycle through the monitoring port .

The initial alignment ofER-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.

ER-FGI1100 has high precision and best stability and showed excellent performance in comparision test with PHINS ralated INS products.


Specifications

ER-FGI1100 Fiber Optic Inertial Navigation System


Pure inertial mode

GNSS 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 accuracy

0.05° /h

Azimuth holding accuracy

≤0.05°sec lat(1σ)

Horizontal attitude holding accuracy

0.03° /h

Horizontal 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 environment

Data measurement frequency

Maximum 100Hz


Power Supply

23~31V DC Power Supply,Nominal Supply Voltage27V


Power

Normal 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°C


Storge Temp

-45° C~+80° C


Installment Dimension

180mm×180mm×160mm


Quality

﹤6kg


Fiber optic gyroscope index

Quartz accelerometer index

Time 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≤ 50ppm

The 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


If interested,pls contact usinfo@ericcointernational.com

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