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  • WTGAHRS3

    Six-axis inertial navigation attitude sensor WTGAHRS5

    Overview

    1.  The module integrates a high-precision gyroscope and accelerometer, employing a high-performance microprocessor and advanced dynamic calculation and Kalman dynamic filtering algorithms to quickly determine the module's current real-time motion attitude.

    2. Advanced digital filtering technology effectively reduces measurement noise and improves measurement accuracy.

    3. The module integrates an attitude solver, which, combined with a dynamic Kalman filtering algorithm, accurately outputs the module's current attitude in dynamic environments. The attitude measurement accuracy is 0.2°, with extremely high stability, and performance even surpasses some professional inclinometers.

    4. The module has a built-in voltage stabilization circuit, operating at 9~36V, facilitating easy connection.

    5. Supports a serial digital interface, allowing users to choose the optimal connection method. The serial port rate is adjustable from 9600bps to 230400bps.

    6. GPS information and attitude sensor information are output synchronously.

    7. Heading angle is fused with IMU data; accurate heading angle and latitude/longitude data can be output even without a 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


    ±500°/s

    Resolution ratio

    ±500°/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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