Ultra-small MEMS North Seeker for Mining Applications

Ultra-small Size 3-Axis North-Seeking MEMS Gyro

ER-3MG-21
1. Size: 40*40*42(with shell)/27*26*34(without shell and baseboard);
2. OEM, modular design, strong applicability;
3. Can find north independently.

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Introduction

ER-3MG-21 Ultra-small Size 3-Axis North-Seeking MEMS Gyro

Introduction
The ER-3MG-21 Ultra-small Size 3-Axis North-Seeking MEMS Gyro has small volume, light weight, simple structure and good reliability. The biggest function of the three-axis gyroscope is to “measure the angular velocity to judge the motion state of the object, so it is also called a motion sensor”. In other words, this thing can let our equipment know where we are and where we are going.

Application
Construction machinery dip angle measurement, angle control, pylon operation monitoring, medical equipment angle control, satellite antenna star search, bridge, tall building, tower, dam monitoring and rock and soil monitoring, mining, attitude/heading reference system, integrated inertial navigation.

Specifications

Parameter	ER-3MG-21
Parameter	A	B	C	Unit
Range	50	100	200	deg/s
Bandwidth (-3dB)	12	12	50	Hz
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
Size	404042(with shell)/272634(without shell and baseboard)			mm
Weight	80g(with shell)/ 40g(without shell and baseboard)			g
Operate temperature	-45~+85			℃
Storage temperature	-55~+105			℃