Low Cost MEMS Inertial Measurement Unit

ER-MIMU-08
1. Gyro angular random walk:0.25°/√h;
2. Gyro bias instability: ≤1°/h;
3. Gyro bias stability (10s,1σ):≤5°/h;
4. Small Volume.

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Introduction

ER-MIMU-08 Low Cost MEMS Inertial Measurement Unit

Introduction
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. Gyroscope and accelerometer are the core devices of inertial navigation system (INS). 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.
ER-MIMU-08 uses MEMS accelerometer and gyroscope with high quality and reliability, RS422 and external communication, baud rate can be flexibly set between 230400~921600, through the communication protocol to set the user's required communication baud rate. With X, Y, Z three-axis precision gyro, X, Y, Z three-axis accelerometer with high resolution, can be output by RS422 X, Y, Z three axis of gyroscope and accelerometer's original hexadecimal complement data (including gyro hexadecimal complement the numerical temperature, angle, the accelerometer hexadecimal temperature, the acceleration hexadecimal complement number); It can also output float dimensionless values of the gyroscope and accelerometer processed by the underlying calculation.

Features
Gyro bias instability: ≤1°/h
Gyro bias stability (10s,1σ):≤5°/h
Gyro angular random walk:0.25°/√h
Volume:38.6mm x 44.8mm x25.5mm
Light weight: ≤70g
6V power supply, low power consumption 2W
Products include X, Y, Z three axis MEMS gyro and X, Y, Z three axis MEMS accelerometer
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
Guidance, navigation, control in tactical MEMS system
Stabilizing & Pointing in satellite antenna,target tracking system
Robotic Control & Orientation in Autonomous machines, Unmanned vehicles

Specifications

Item	Parameter
Gyro Performance
Range	±400°/s
Bandwidth	200Hz
Scale factor	20000
Scale Factor Non-linearity	≤200ppm
Scale factor temp drift (1б)	500 ppm
Bias instability	≤1°/h
Bias Stability (10s,1σ)	≤5°/h
Bias Stability (1s,1σ)	≤15°/h
Bias Repeatability	≤5°/h
Bias temp drift (1б)	50°/h
Accelerometer Performance
Range	10	30	g
Nonlinearity	0.1	1.3	% FSR
Cross Axis Sensitivity	1	1	%
Bandwidth	2.4	2.4	Hz
Bias Repeatability	5	5	mg
Bias Temp Coefficient	<0. 5	<0. 5	mg/°C
Factor Scale Repeatability	<0.1	0.2	%
Factor Scale Temp Coefficient	±0.01	±0.01	%/°C
Factor Scale	800000	200000	μg/LSB
System Performance
Supply Voltage	6V~12V
Supply Consumption	2W
Interface	RS422
Vibration	6.06g (10~2000Hz)
Shock	5000g, 0.1ms
Operate Temp	-40℃~+ 80℃
Storage Temp	-55℃~+ 105℃
Weight	≤70g
Size	38.6mm x 44.8mm x25.5mm