Miniaturized MEMS IMU

ER-MIMU-11
1. Mini diameter: 120mm x Φ30mm;
2. Light weight: ≤150g;
3. Temperature compensation: -40℃~ + 80℃.

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Introduction

Miniaturized MEMS IMU

Introduction
The product is mainly composed of three-axis MEMS accelerometer and gyroscope. The working principle is as follows: the gyroscope and accelerometer data are collected by ARM microcontroller, three high-precision gyroscopes are collected by 1-channel digital interface SPI, and three accelerometers are collected by another 1-channel digital interface SPI. All sensors are calibrated and compensated in software after acquisition.

Features
Mini diameter:120mm x Φ30mm
Light weight: ≤150g
Temperature compensation: -40℃~ + 80℃
Products with wide voltage design: 6v~12v
Gyro bias instability: <0.3deg/hr
Gyro bias stability (10s 1σ): <3deg/hr
Gyro angular random walk: <0.125°/ √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	16000	LSB/deg/s
Scale Factor Repeatability (1σ)	<50	ppm
Scale Factor VS Temperature (1σ)	±300	ppm
Scale Factor Non-Linearity (1σ)	<300	ppm
Bias Instability (1σ 25℃)	<0.3	deg/hr
Bias stability (10s 1σ)	<3	deg/hr
Angular Random Walk	<0.125	°/ √h
Bias Repeatability(1σ 25℃)	<3	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 Month 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	120 x φ30	mm
Weight	≤150	g