Economical MEMS Gyroscope

Economical MEMS Gyroscope

ER-MG-056 (1°/h)
1. 1°/hr bias instability;
2. 0.25°/√hr angular random walk;
3. 5°/hr bias stability.

Economical MEMS Gyroscope

Economical MEMS Gyroscope

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    Introduction

    ER-MG-056 Economical MEMS Gyroscope

    Introduction
    The ER-MG-056, a low cost Tactical Grade MEMS Gyro with 1 °/hr bias of instability and 0.25°/√h of angular random walk, is a single-axis MEMS angular rate sensor (gyroscope) capable of measuring angular velocity up to a maximum of ±400°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.
    The ER-MG-056 is intended for industrial, instrumentation, stabilization, and other high performance applications. An advanced, differential sensor design rejects the influence of linear acceleration, enabling the ER-MG-056 to operate in exceedingly harsh environments where shock and vibration are present.
    The ER-MG-056 is available in a hermetically sealed ceramic LCC surface mount package, and is capable of operating at 5V supply and a wide temperature range (−40°C to +85°C).

    Features
    Proven and robust silicon MEMS gyro
    Up to ±400°/s measurement range
    1°/hr bias instability
    0.25°/√hr angular random walk
    Digital output (SPI slave)
    5V operation (4.75~5.25V supply)
    Low power consumption (35 mA)
    High shock and vibration rejection
    Hermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)
    Integrated temperature sensor
    RoHS compliant

     

    Applications
    Azimuth, attitude, position measuring and keeping in GNSS-assisted INS
    Heading, pitch, roll measuring in AHRS for UAV
    Motion survey and keeping in MRU
    Attitude& azimuth keeping, positioning in IMU
    Guidance, navigation, control in tactical MEMS system
    Stabilizing & pointing in satellite antenna, target tracking system
    Robotic control & orientation in autonomous machines, unmanned vehicles

     

    Specifications

    Parameters ER-MG-056 Unit
    Input range 400 dps
    Bandwidth 200 Hz
    Data output rate 2K Hz
    Latency 2 ms
    Scale factor 20000 LSB/°/s
    Scale factor non-linearity 200 ppm
    Scale factor temp drift (1σ) ±500 ppm
    Scale factor repeatability (1σ) <10 ppm
    Bias temp drift (1б) 50 dph
    Bias temp drift (1б) (After temp compensation) 20 dph
    Bias instability 1 dph
    Bias stability (1б 10s) 5 dph
    Bias stability (1б 1s) 15 dph
    Bias repeatability 5 dph
    RMS noise (1-200Hz) 0.1 dps
    Random walk (ARW) 0.25 °/√h
    Start up time 0.8 s
    G-sensitivity 5 dph/g
    VRC 0.5 °/h/g²rms
    Shock 12g rms
    Vibration 1000g 5ms 1/2 sine /
    Operation temperature -40~85 °C

    Application Techniques

    1.MEMS Gyroscope: Error Compensation By Allan Variance Method
    2.Bandwidth test method of MEMS gyroscope
    3.Basic Knowledge of Bias Stability of MEMS Gyroscope
    4.Research on scale factor nonlinearity of MEMS gyroscope
    5.Integrated method of three-axis MEMS gyroscope
    6.MEMS Gyroscope: The Third Generation Of Gyroscopes Is Leading The Way


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