Low Cost Mems Inertial Measurement Unit

Low Cost MEMS Inertial Measurement Unit

ER-MIMU-08
1. Smallest Size: 38.6mm x 44.8mm x25.5mm;
2. Light weight: ≤70g;
3. Temperature compensation: -40℃~ + 80℃.

Low Cost MEMS Inertial Measurement Unit

Low Cost Mems Inertial Measurement Unit

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    Introduction

    ER-MIMU-08 Low Cost MEMS Inertial Measurement Unit

    Introduction
    ER-MIMU-08 is the world’s smallest six axis MEMS IMU. Inertial Measurement Unit, referred to as IMU, is a device to measure the attitude angle (or angular velocity) and acceleration of the three axis of the object.  With the built-in accelerometer sensor and gyroscope, the IMU can measure the linear acceleration and rotation angular velocity from three directions and can obtain the attitude, velocity and displacement information of the carrier through the resolving.

    Features
    Smallest size: 38.6mm x 44.8mm x25.5mm
    Light weight: ≤70g
    Temperature compensation: -40℃~ + 80℃
    Products with wide voltage design: 6v~12v
    Gyro bias instability: ≤1°/h
    Gyro bias stability (10s,1σ): ≤5°/h
    Gyro angular random walk: 0.25°/√h
    Accelerometer bias repeatability: 100ug
    Accelerometer bias stability (10s 1σ): <50ug
    Accelerometer class II non-linearity coefficient: <100ug/g2
    6V power supply, low power consumption 2W
    RS422 bus communication, baud rate from 230400~921600 can be set

    Application
    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
    Stabilizing & Pointing in satellite antenna, target tracking system
    Robotic Control & Orientation in autonomous machines, unmanned vehicles

    Specifications

    Item Parameter Unit
    Gyro performance
    Range 400 deg/s
    Scale Factor at 25°C 20000 LSB/deg/s
    Scale Factor Repeatability (1σ) <10 ppm
    Scale Factor VS Temperature (1σ) ±500 ppm
    Scale Factor Non-Linearity (1σ) <200 ppm
    Bias Instability (1σ 25℃) 1 deg/hr
    Bias stability (10s 1σ) 5 deg/hr
    Angular Random Walk <0.25 °/ √h
    Bias Repeatability(1σ 25℃) 5 deg/hr
    Accelerometer performance
    Range 30 g
    Bias Stability (10s 1σ) <50 ug
    Bias Repeatability 100 ug
    Bias Temp Coefficient <20 ug/℃
    Bias Temp Hysteresis <1.5 mg
    Scale Factor Non-linearity <500 ppm
    Scale Factor Repeatability <30 ppm
    Scale Factor Temp Coefficient 10 ppm/℃
    Class II Non-linearity Coefficient <100 ug/g2
    Scale Factor 250000 Lsb/g
    Environment and power
    Operate temperature -40~+80
    Storage temperature -55~+105
    Power supply 6~12V DC V
    Power (Power supply 6) 2 W
    Communication interface RS-422
    Physical characteristics
    Size 38.6 x 44.8 x 25.5 mm
    Weight ≤70 g

    Dimension


    Application Techniques

    1.IMU and GPS fusion algorithm principle

    2.MEMS IMU error analysis and compensation

    3.Reusable spacecraft IMU dynamic accuracy assessment method

    4.Research on MEMS IMU error modeling and temperature compensation technology

    5.Calibration method and error analysis of low-precision MEMS IMU

    6.MEMS-IMU error calibration compensation method that does not rely on precision turntable


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