Low cost Inertial Measurement Unit

ER-MIMU-17
1. Small size: 47×44×14mm;
2. Light weight: 40g;
3. Gyro bias instability: 1º/h (Allan 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 (Allan variance);
Angle random walk: 0.25º/√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

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	A	B	Unit
Gyroscope
Measuring range		±400	±400	º/s
Bias stability	10s smoothing, 1σ	5	4	º/h
Bias instability	(1σ 25℃) Allan variance	1	1	º/h
Random Walk		0.25	0.2	º/√h
Bias Repeatability	(1σ 25℃)	5	4	º/h
Scale factor at 25°C		20000	20000	LSB/°/s
Scale factor non-linearity		200	200	ppm
Bandwidth		200	200	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		℃