Ultra-high Performance Laser Gyro

Ultra-high Performance Laser Gyro

ER-RLG-120 (≤0.001°/h)
1. Bias stability: ≤0.001°/h;
2. Bias repeatability: ≤0.0003°/h;
3. Angular random walk: ≤0.00015°/√h.

Ultra-high Performance Laser Gyro

Ultra-high Performance Laser Gyro

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    Main parameters of gyroscope

    Bias stability≤0.001°/h (100s Standard deviation)
    Bias repeatability≤0.0003°/h
    Angular random walk≤0.00015°/√h
    Magnetic field sensitivity≤0.001°/h/Gs
    Total error of scale factor≤2ppm(1σ)
    Measuring range-400~400°/s
    Start time≤5s
    Operating temperature–40℃~+65℃
    Storage temperature–55℃~+85℃
    Shock30g/11ms(half-sine), 75g/6ms(sine)
    Vibration7.2g/5min (3 directions)
    Frequency(Hz)1010020030060010002000
    Power(g2/Hz)0.10.40.10.020.0050.00003-6dB
    Jitter frequency300Hz~420Hz, the jitter frequency of type A, type B and type C gyroscopes decreases successively, which should be avoided in the design of system structure
    Low pressureAltitude 5000m
    MTBF15000h
    Storage life15a
    Size(167±1)mm×(151±1)mm×(58±1)mm
    Weight2.90±0.1kg
    Power consumption≤4W

    Mechanical interface 

    laser gyro 

    Figure 1 Shape and mounting dimensions of gyroscope

    Mass Center

    lasergyro

    Figure 2  Mass Center for gyroscope

    Electrical interface

    The electrical interface adopts J30J-37ZK socket, as defined in the following table.

    Table 1 Interface definition

    Node numberNameDescription
    9;27BTTLSquare wave output signal 2, TTL level, for phase detection
    10;28GNDSignal ground
    11;29ATTLSquare wave output signal 1, TTL level, for phase detection
    12PT1000-1Platinum resistance 1
    30PT1000-2Platinum resistance 2
    13PT1000-3Platinum resistance 3
    31PT1000-4Platinum resistance 4
    14;32PT1000-COM4 platinum resistance common ground
    15;33GND±5V Power supply ground, connected with the laser gyroscope housing
    16;34+5V+5V Power supply
    17;35+15V+15V Power supply
    18;36+15V_GND+15V Power supply ground, Isolation from the laser gyroscope housing
    19;37-5V-5V Power supply
    Other pinsManufacturer reserve 

    Cautions for use

    1. Gyroscope should be avoided by impact, knock;
    2. Gyroscopes with the same jitter frequency should be avoided in the same inertial navigation equipment;
    3. Pay attention to the use of spring pad when installing the gyroscope. It is recommended to use M5 hex socket screw with grade 9 (including) or above, and the recommended torque value is 7NM.

     

    Application Techniques

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