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  • WTGAHRS3

    Six-axis inertial navigation attitude sensor

    Overview

    1. The module integrates high-precision gyroscopes and accelerometers, and uses high-performance microprocessors and advanced 

    dynamics calculation and Kalman dynamic filtering algorithms to quickly solve the current real-time motion posture of the module.

    2. The use of advanced digital filtering technology can effectively reduce measurement noise and improve measurement accuracy.

    3. The module integrates an attitude solver, and with the dynamic Kalman filter algorithm, it can accurately output the current 

    attitude of the module in a dynamic environment. The attitude measurement accuracy is 0.2°, the stability is extremely high, 

    and the performance is even better than some professional inclination angles. instrument.

    4. The module has its own voltage stabilization circuit, working voltage is 5~36V, and is easy to connect.

    5. Support serial digital interface. It is convenient for users to choose the best connection method. The serial port rate is adjustable

     from 4800bps to 230400bps.

    6. Maximum data output rate of 200Hz. The output content can be selected arbitrarily, and the output rate is adjustable from 0.2

     to 200Hz.

    7. GPS information and attitude sensor information are output simultaneously.

    8. The heading angle is integrated with IMU data and can still output accurate heading angle without GPS signal.



    Specifications

    Accelerometer parameters

    Parameters

    Condition

    Typical value

    Measuring range


    ±16g

    Resolution ratio

    ±16g

    0.0005(g/LSB)

    RMS noise

    Bandwidth=100Hz

    0.75~1mg-rms

    Static zero drift

    Place horizontally

    ±80mg

    Temperature drift

    -40°C ~ +85°C

    ±0.15mg/℃

    Bandwidth


    5~256Hz

    Gyroscope parameters

    Parameters

    Condition

    Typical value

    Measuring range


    ±2000°/s

    Resolution ratio

    ±2000°/s

    0.061(°/s)/(LSB)

    RMS noise

    Bandwidth=100Hz

    0.05(°/s)-rms

    Static zero drift

    Place horizontally

    ±0.5~1°/s

    Temperature drift

    -40°C ~ +85°C

    ±0.02%/℃

    Bandwidth


    5~256Hz

    Pitch and roll angle parameters

    Parameters

    Condition

    Typical value

    Measuring range


    X:±180°  

    Y:±90°

    Inclination accuracy


    0.2°

    Resolution ratio

    Place horizontally

    0.0055°

    Temperature drift

    -40°C ~ +85°C

    ±0.5~1°

    Heading angle parameter

    Parameters

    Condition

    Typical value

    Measuring range


    Z:±180°

    Heading accuracy

    6-axis algorithm, static

    0.5°(Dynamic integral cumulative error exists)

    【1】

    Resolution ratio

    Place horizontally

    0.0055°


    Note:

    【1】In some vibration environments, there will be cumulative errors. The specific errors cannot be estimated and are subject to actual testing.


    GPS Parameter

    Index

    Technical Parameters

    Signal reception

    BDS/GPS/QZSS/GLONASS  

    Cold start TTFF

    ≤32s

    Hot start TTFF

    ≤1s

    Recapture TTFF

    ≤1s

    Cold start capture sensitivity

    -148dBm

    Hot start capture sensitivity

    -156dBm

    Recapture sensitivity

    -160dBm

    Tracking sensitivity

    -162dBm

    positioning accuracy

    <2.5m(CEP50)

    Speed measurement accuracy

    <0.1m/s(1σ)

    Location update rate

    5Hz

    protocol

    NMEA0183

    Maximum height

    18000m

    Maximum speed

    515m/s

    Maximum acceleration

    4g  


    Application

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