North Seeking Mems Inertial Measurement Unit

3-Axis North-Seeking MEMS Gyro

ER-3MG-181
1.Gyro bias instability: < 0.02 deg/hr;
2.Gyro bias stability (10 seconds, 1σ): < 0.1 deg/hr;
3.Gyro angle random walk: < 0.005 °/√h.

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Introduction

3-Axis North-Seeking MEMS Gyro
The ER-3MG-181 three-axis north-seeking MEMS gyroscope is small in size, light in weight, and has a simple structure with good reliability. The 3-axis gyroscope has the greatest function of providing the angular velocity needed to determine the motion state of an object, and thus is also called a motion sensor.

Feature
Gyro bias instability: < 0.02 deg/hr
Gyro bias stability (10 seconds, 1σ): < 0.1 deg/hr
Gyro angle random walk: < 0.005 °/√h

Application
Including agriculture, AUV, industrial equipment, robots, surveying, stabilization platforms, transportation, unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs).

Specification

Project	Parameter			Unit
Gyroscope	A	B	C	/
Range	50	100	200	deg/s
Scale factor(25°C)	160000	80000	40000	LSB/deg/s
Scale factor repeatability (1σ)	<50	<50	<100	ppm
Scale factor temperature drift (1σ)	±300	±300	±300	ppm
Scale factor non-linearity (1σ)	<200	<200	<300	ppm
Bias instability (1σ at 25°C)	<0.01	<0.02	<0.02	deg/hr
Bias stability (10s at 1σ)	<0.05	<0.1	<0.1	deg/hr
Angle random walk	<0.0025	<0.005	<0.005	°/√h
Bias repeatability (1σ at 25°C)	<0.1	<0.1	<0.1	deg/hr