High Precision Navigation MEMS Gyroscope

High Precision Navigation MEMS Gyroscope

ER-MG2-300/400 (0.03-0.05°/hr)
1. Up to ±400°/s measurement range;
2. 0.03-0.05° deg/hr bias instability;
3. 0.01-0.025°/√hr angular random walk.

High Precision Navigation MEMS Gyroscope

High Precision Navigation MEMS Gyroscope

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    ER-MG2-300/400 High Precision Navigation MEMS Gyroscope

    Introduction

    ER-MG2-300/400, a Navigation Grade MEMS gyro sensor up to 400deg/s measurement range and 0.05°/hr bias instability, is specially designed for precision attitude & azimuth measuring, positioning, navigating, guidance in high performance IMU /AHRS/ GNSS-aided INS, aerial/marine/land mapping/survey system/UAV/AUV and navigation grade MEMS weapon system.

    With the high dynamic measurement range and high precision, ER-MG2-300/400 is a cost effective, robust, reliable, small size, light weight, low power, most suitable replacement of medium-low navigation grade FOG/DTG with high dynamic azimuth & attitude measuring , inertial positioning and navigation function in aerial, marine manned, or unmanned carriers.

    The ER-MG2-300/400 High Precision Navigation MEMS Gyroscope 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-MG2-300/400 with an advanced, differential sensor design rejects the influence of linear acceleration, enables to operate in exceedingly harsh environments where shock and vibration are present.

    The ER-MG2-300/400 is available in a hermetically sealed ceramic LCC surface mount package, and is capable of operating at 5V supply and a wide temperature range (−45°C to +85°C).

    Features

    Proven and robust silicon MEMS gyro

    Up to ±400°/s measurement range

    0.03-0.05°/hr bias instability

    0.01-0.025°/√hr angular random walk

    Digital output (SPI slave)

    5V operation (4.75~5.25V supply)

    Low power consumption (40 mA)

    High shock and vibration rejection

    Hermetically sealed ceramic LCC surface mount package (11x11x2mm)

    Integrated temperature sensor

    RoHS compliant

    Application areas

    Precision attitude & azimuth keeping, positioning, navigation in navigation grade IMU/INS/AHRS

    Heading, navigation, positioning in High performance GNSS-aided INS

    Orientation, navigation, positioning in aerial/marine/land mapping/survey system

    Attitude and motion control in medium and large UAV, AUV

    Pointing and tracking in satellite antenna,target tracking system

    Guidance and navigation in medium-low navigation grade MEMS weapon system

    Azimuth, position, heaving/swaying/Surging of gyrocompass in surface and submarine carriers, AUV

    Antenna and Line of Sight Stabilization Systems

    Integrated Navigation Systems & Inertial Guidance System

    Flight Control & Guidance System

    Attitude Heading Reference Systems (AHRS)

    Stabilization of Antennas, Cameras & Platforms

    Aerial and Marine Geo-mapping / Surveying

    Specifications

    Parameter

    ER-MG2-300

    ER-MG2-400

    Unit

    Range

    300

    400

    deg/s

    Resolution

    24

    24

    bits

    Data Rate

    12K

    12K

    Hz

    Group delay

    <5

    <3

    ms

    Bandwidth (-3dB)

    50

    100

    Hz

    Scale Factor at 25°C

    28000

    20000

    lsb/deg/s

    Scale Factor Repeatability (1σ )

    <50

    <20

    ppm

    Scale Factor VS Temperature (1σ )

    300

    100

    ppm

    Scale Factor Non-Linearity (1σ)

    <300

    100

    ppm

    Bias Instability

    0.03

    0.05

    deg/hr

    Bias stability (1σ 10s)

    0.15

    <0.5

    deg/hr

    Bias stability (1σ 1s)

    0.5

    <1.5

    deg/hr

    Angular Random Walk

    <0.01

    <0.025

    °/ √h

    Bias error over temperature (1σ)

    10

    3

    deg/Hr

    Bias temperature variations, calibrated (1σ)

    <1

    <0.5

    deg/Hr

    Bias repeatability (1σ )

    <0.3

    <0.3

    deg/hr

    Noise Peak to Peak

    ±0.01

    ±0.05

    deg/s

    G-Sensitivity

    <1

    <1

    °/hr/g

    Vibration rectification error

    <1

    <1

    °/hr/g (rms)

    Startup Time

    1

    1

    s

    Sensor Resonant Frequency

    11K~13K

     

    Environment, Power and Physical

    Shock (charged)

    1000g,1ms, half sine wave

    Shock (uncharged)

    10000g,1.0ms, half sine wave

    Vibration (Operating)

    12grms, 20Hz to 2KHz random vibration

    Operating Temperature

    -45°C~85°C

    Max storage (survival) Temperature

    -55°C~125°C

    Supply voltage

    5±0.25V

    Current consumption

    40mA

    Application Techniques

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