Low cost Inertial Measurement Unit

ER-MIMU-17
1. Small size: 47×44×14mm;
2. Light weight: 40g;
3. Gyro bias instability: 1º/h (Allen variance).

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Introduction

Low cost Inertial Measurement Unit

Introduction
ER- MIMU-17 is a micromechanical technology (MEMS)-based inertial measurement unit (IMU). Built-in three-axis gyroscope and three-axis accelerometer to measure three-axis angular velocity and acceleration.

The ER-MIMU-17 uses a high-quality, reliable MEMS accelerometer and gyroscope. It can be used for attitude measurements. The product uses high-performance MEMS inertial devices, which have high reliability and high robustness, and can accurately measure the angular velocity and acceleration information of moving carriers in harsh environments.

Features
Three-axis digital gyroscope:
Dynamic measurement range: ±400º/s;
Bias instability: 1º/h (Allen variance);
Angle random walk: 0.25º/√h.
Three-axis digital accelerometer:
Dynamic measurement range: 30g;
Bias instability: 10ug(Allen 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

Application
Industrial instrumentation attitude measurement
Robot attitude control
Indoor people tracking, navigation, and tracking
Platform stability and control
Pipeline Inspection, exploration & positioning

Specifications

Parameter	Test condition	Min value	Typical value		Max value	Unit
Gyroscope
Measuring range			±400			º/s
Bias stability	10s smoothing, 1σ		5			º/h
Bias instability	(1σ 25℃)Allen variance		1			º/h
Random Walk			＜0.25			º/√h
Bias Repeatability	(1σ 25℃)		5			º/h
Scale factor at 25°C			20000			LSB/°/s
Scale factor non-linearity			＜200			ppm
Scale factor repeatability	1σ		10			ppm
Bandwidth			200			Hz
Accelerometer
Measuring range			±30			g
Bias instability	Allen 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				℃