High-Precision Navigation MEMS Inertial Measurement Unit

ER-MIMU-15
1. Small size: 47×44×14mm;
2. Light weight: 40g;
3. Gyro bias instability: 0.03-0.05 º/h (Allan variance).

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Introduction

ER-MIMU-15 High-Precision Navigation MEMS Inertial Measurement Unit

Introduction
ER- MIMU-15 is a MEMS inertial measurement unit with large dynamic measurement range and high accuracy, which has the advantages of small size and light weight. Built-in three-axis high-precision gyroscope and three-axis high-precision accelerometer for measuring three-axis angular velocity and acceleration.

It can be used for precise navigation, control, and dynamic measurements. Even in harsh environments, angular velocity and acceleration information of moving carriers can be accurately measured.

Features
Three-axis digital gyroscope:
Dynamic measurement range: ±400º/s;
Bias instability: 0.05 º/h (Allan variance)
Angular random walk: 0.025º/√h.
Three-axis digital accelerometer:
Dynamic measurement range: ±30g;
Bias instability: 10ug (Allan variance);
Ensure accuracy over the full temperature range (-40°C~80°C): built-in high-performance temperature calibration and compensation algorithm;
Low power consumption: 2W;
Communication interface: 1 SPI.

Applications
Line-of-sight stabilization system
Integrated navigation system and inertial guidance system
Flight control and guidance systems
Attitude Heading Reference System (AHRS)
Antenna, camera and platform stability
Aerial and Marine geographic mapping/surveying

Specifications

Parameter	Test condition	A	B	Unit
Gyroscope
Measuring range		±300	±400	º/s
Bias stability	10s smoothing, 1σ	0.15	<0.5	º/h
Bias instability	(1σ 25℃) Allan variance	0.03	0.05	º/h
Random Walk		<0.01	<0.025	º/√h
Bias Repeatability	(1σ 25℃)	<0.3	<0.3	º/h
Scale factor at 25°C		28000	20000	LSB/°/s
Scale factor non-linearity	1σ	<300	100	ppm
Scale factor repeatability	1σ	<50	<20	ppm
Bandwidth (3dB)		50	100	Hz
Accelerometer
Measuring range		±30		g
Bias instability	Allan variance	10		ug
Bias stability	10s smoothing, 1σ	<50		ug
Bias temp coefficient		<20		ug/℃
Bias Temp Hysteresis		<1.5		mg
Bias repeatability		100		ug
Scale factor non-linearity		<500		ppm
Scale factor month repeatability		<30		ppm
Bandwidth		100		Hz
Communication Interface
1 way SPI	Baud rate	<15		MHz
Electrical specification
Voltage		6~12		V
Power consumption		2		W
Structural characteristics
Dimension	47×44×14mm
Weight		40		g
Operating environment
Operating temperature		-40~80		℃
Storage temperature		-55~105		℃