High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

ER-MG2-022(<0.02°/hr)
1. <0.02°/hr bias instability;
2. <0.025°/ √h angular random walk;
3. <0.1°/hr bias stability.

High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

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    Introduction

    ER-MG2-022 High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

    Introduction
    The ER-MG2-022 is a single-axis MEMS angular rate sensor (gyroscope) capable of measuring angular velocity up to a maximum of ±100°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.
    The ER-MG2-022 is intended for north seeking applications. An advanced, differential sensor design rejects the influence of linear acceleration, enabling the ER-MG2-022 to operate in exceedingly harsh environments where shock and vibration are present.
    The ER-MG2-022 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 +125°C).

    Features
    High temperature
    Special for borehole survey tools
    Proven and robust silicon MEMS gyro
    0.02°/hr bias in-run stability
    0.025°/√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

    Application
    North seeking in logging tools/gyro tools
    Pointing, steering and guiding in advanced mining/drilling equipment
    Precision attitude, position measuring in navigation grade MEMS IMU/ INS
    Petroleum exploration

    Specifications

    ParameterER-MG2-022Unit
    High Temperature MEMS Gyro Range100deg/s
    Bandwidth (BW@3DB Customizable)12.5Hz
    Output Accuracy (Digital SPI)24bits
    Data Output Rate (ODR)(Customizable)2KHz
    Delay (Customizable)<3ms
    Bias Stability (Allan Curve @Room Temp)<0.02deg/hr (1σ )
    Bias Stability (10s standard deviation @Room Temp)<0.1deg/hr (1σ )
    Bias Stability (1s standard deviation @Room Temp)<0.3deg/hr (1σ )
    Bias Drift<0.25deg/hr/°C
    Bias Drift (After Temp Compensation)<0.05deg/hr/°C
    Bias Repeatability (Room Temp)0.1deg/hr (1σ )
    Scale Factor Repeatability (Room Temp)<100ppmppm (1σ )
    Scale Factor Temp Drift (1sigma)±500ppmppm (1σ)
    Scale Factor Nonlinearity (Full Temp)<300ppmppm
    Random Walk (ARW)<0.025°/ √h
    Resolution0.05°/hr
    Bandwidth Noise (Peak to Peak)±0.1deg/s
    G-value Sensitivity<1°/hr/g
    Vibration Rectification Error (12gRMS,20-2000)<1°/hr/g (rms)
    Power-on Time (Valid Data)1s
    Shock (charged)200g (1ms, 1/2 sine)
    Shock Resistance (uncharged)1.8wg 3ms
    Vibration (charged)12g rms (20Hz to 2kHz)
    Operation Temp-40°C~+125°C
    Storage Temp-55°C~+125°C
    Size11x11x2mm
    PackageLCC

    Application Techniques

    1.Comparative analysis of integrated modes of three-axis MEMS gyroscope
    2.Integrated method of three-axis MEMS gyroscope
    3.Research on scale factor nonlinearity of MEMS gyroscope
    4.How does MEMS gyroscope work in harsh high temperature environment?
    5.Bandwidth test method of MEMS gyroscope
    6.MEMS Gyroscope: Error Compensation By Allan Variance Method


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