Low Cost Mems Inertial Measurement Unit For Attitude Control

Low-cost MEMS IMU for Attitude Control

ER-MIMU-184
1.Gyroscopic bias instability: 1 deg/hr.
2. -40~80°C temperature compensation.
3.Low cost.

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Introduction

Low-cost MEMS IMU for Attitude Control

Introduction
ER-IMU-184 is a high-reliability and high-precision six-axis small-sized inertial measurement unit. The inertial sensing system integrates navigation-grade MEMS three-axis gyroscope and three-axis accelerometer. The angular rates and accelerations outputted are filtered and calibrated excellently, enabling ER-IMU-184 to provide precise inertial data under harsh conditions.

ER-IMU-184 offers multiple configurable industrial standard communication interfaces and a wide input voltage range, facilitating its integration into various systems. It also features a small size, low power consumption, and high precision. It is an ideal choice for attitude measurement and navigation in most marine unmanned aerial vehicle on-board applications.

Feature
Size:65*51*35.5
Weight:140
-40~80°C temperature compensation
The product is low-cost
Gyro bias instability: 1deg/hr
Gyro bias stability (10s 1σ): 4deg/hr
Gyro angular random walk: 0.2 °/√h
Accelerometer bias repeatability: 100ug
Accelerometer bias stability (10s) (1σ): <50ug
Accelerometer class II non-linearity coefficient: <100ug/g²

Application
Robotic control & orientation in autonomous machines, unmanned vehicles
Azimuth, attitude, position measuring and keeping in GNSS-assisted INS
Pitch, roll measuring in AHRS for UAV
Motion survey and keeping in MRU
Attitude & azimuth keeping, positioning in IMU
Guidance, navigation, control in tactical MEMS system
Stabilizing & Pointing in satellite antenna, target tracking system

Specification

Item	Parameter		Unit
Gyro performance	A	B	/
Range	400	400	deg/s
Scale Factor at 25°C	20000	20000	LSB/deg/s
Scale Factor VS Temperature (1σ)	500	500	ppm
Scale Factor Non-Linearity (1σ)	<200	200	ppm
Bias Instability (1σ 25℃)	3	1	deg/hr
Bias Stability (10s 1σ)	5	4	deg/hr
Angular Random Walk	<0.25	<0.2	°/ √h
Bias Repeatability (1σ 25℃)	5	4	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 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 (power supply 6V)	2		W
Communication interface	RS-422
Physical characteristics
Size	655135.5		mm
Weight	140		g