High Accuracy North-Seeking MEMS IMU

ER-MIMU-061
1. Smallest volume: 38.6mm x 44.8mm x25.5mm;
2. Range can be selected;
3. Light weight: ≤70g.

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Introduction

ER-MIMU-061 High Accuracy North-Seeking MEMS IMU

Introduction
ER-MIMU-061 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 volume: 38.6mm x 44.8mm x25.5mm
Range can be selected
Light weight: ≤70g
Temperature compensation: -40℃~ + 80℃
Products with wide voltage design: 6v~12v
Gyro bias instability up to: <0.01 deg/hr
Gyro bias stability up to (10s 1σ): <0.05 deg/hr
Gyro angular random walk up to: <0.0025 °/√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
Initial alignment in UAV launch systems
Guidance and navigation in navigation grade MEMS system
Orientating and positioning in railway train system
Precision platform attitude measuring and controls
Precision attitude, position measuring in navigation grade MEMS IMU/INS
North finding and positioning in land surveying/land mobile mapping system
Bridge, tall building, tower, dam monitoring
Rock and soil monitoring

Specifications

Item	Parameter			Unit
Gyro performance	A	B	C	/
Range	50	100	200	deg/s
Scale Factor at 25°C	160000	80000	40000	LSB/deg/s
Scale Factor Repeatability (1σ)	<50	<50	<100	ppm
Scale Factor VS Temperature (1σ)	300	300	300	ppm
Scale Factor Non-Linearity (1σ)	<200	<200	<300	ppm
Bias Instability (1σ 25℃)	<0.01	<0.02	<0.02	deg/hr
Bias stability (10s 1σ)	<0.05	<0.1	<0.1	deg/hr
Angular Random Walk	<0.0025	<0.005	<0.005	°/√h
Bias Repeatability (1σ 25℃)	<0.1	<0.1	<0.1	deg/hr
Accelerometer performance
Range	30			g
Bias Stability (10s 1σ)	<50			ug
Bias Month Repeatability(1σ)	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			V
Power	2			W
Communication interface	RS-422
Physical characteristics
Size	38.6 x 44.8 x 25.5			mm
Weight	≤70			g