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    • HWT901B

    Accuracy Inclinometer HWT901B

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    Overview

    1、 The module integrates high-precision gyroscopes, accelerometers, and geomagnetic field sensors with magnetic recovery functions. It uses high-performance microprocessors and advanced dynamic calculation and Kalman dynamic filtering algorithms to quickly solve the current real-time situation of the module. Athletic stance.

    2、Using advanced digital filtering technology, it can effectively reduce measurement noise and improve measurement accuracy.

    3、 An attitude solver is integrated inside the module, and combined 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 statically 0.1°, the stability is extremely high, and the performance is even better than some professional inclination angles. instrument.

    4、The Z-axis heading angle is added to the geomagnetic sensor filter fusion, which solves the cumulative error caused by the drift of the gyroscope integral in the 6-axis algorithm, and can output heading angle data stably for a long time.

    5、Military-grade magnetic field chip, automatically recovers from magnetic field interference.

    6、 The module has its own voltage stabilization circuit, working voltage 5~36V system, easy to connect.

    7、Supports serial port, allowing users to choose the best connection method. The serial port rate is adjustable from 4800bps to 230400bps.

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

    9、P67 level protection, aluminum shell, strong resistance to external electromagnetic interference, stable performance, and adaptable to long-term work in harsh industrial environments.


    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

    ±20~40mg

    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

    0.028~0.07(°/s)-rms

    Static zero drift

    Place horizontally

    ±0.5~1°/s

    Temperature drift

    -40°C ~ +85°C

    ±0.005~0.015 (°/s)/℃

    Bandwidth


    5~256Hz

    Magnetometer parameters

    Parameters

    Condition

    Typical value

    Measuring range


    ±2Gauss

    Resolution ratio

    ±2Gauss

    8.333nT/LSB

    Pitch and roll angle parameters

    Parameters

    Condition

    Typical value

    Measuring range


    X:±180°  

    Y:±90°

    Inclination accuracy


    0.1°

    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

    9-axis algorithm, magnetic field calibration, dynamic/static

    1°（Without interference from magnetic fields）【1】

    6-axis algorithm, static

    0.5°（Dynamic integral cumulative error exists）

    【2】

    Resolution ratio

    Place horizontally

    0.0055°


    Note:【1】Please perform magnetic field calibration in the testing environment before use to ensure that the sensor is familiar with the magnetic field in the environment. During calibration, please stay away from magnetic interference. 

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


    Application

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    Product Information

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