High Precision Stable Controlled Mems Inertial Measurement Unit

High-precision Stable-Controlled MEMS IMU

ER-MIMU-183
1.Gyroscope bias instability: < 0.3 deg/hr;
2.Gyroscope bias stability (10s 1σ): < 3 deg/hr;
3.High reliability.

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Introduction

High-precision Stable-Controlled MEMS IMU

Introduction
The Inertial Measurement Unit (IMU) is a device that measures the three-axis attitude angles (or angular velocities) and accelerations of an object. Gyroscopes and accelerometers are the core components of an Inertial Navigation System (INS). By integrating the built-in accelerometers and gyroscopes, the IMU can measure the three-axis linear accelerations and three-axis rotational angular velocities, and obtain the information of the carrier's attitude, velocity and displacement through analysis.

The ER-MIMU-183 uses high-quality and highly reliable MEMS accelerometers and gyroscopes.

Feature
Gyroscope bias instability: < 0.3 deg/hr
Gyroscope bias stability (10s 1σ): < 3 deg/hr
Gyroscope angle random walk: < 0.125 °/√h
Accelerometer bias repeatability: 100 ug
Accelerometer bias stability (10 seconds) (1σ): < 50 ug
Accelerometer second-order nonlinearity: < 100 ug/g²
Weight: ≤ 100 grams (inflated body) / ≤ 220 grams (with shell)

Application
Camera and platform stability
Azimuth, attitude and position measurement and stabilization in GNSS-assisted INS
Pitch and roll measurement in UAV AHRS
Motion measurement and stabilization in MRU
Attitude and azimuth stabilization, and positioning in IMU
Guidance, navigation and control in tactical MEMS systems
Satellite antenna stabilization and target tracking system
Robot control and positioning in autonomous machines and unmanned aircraft

Specification

Project	Parameter			Unit
Gyroscopic performance	A	B	C
Range	400	400	400	deg/s
Scale factor(25°C)	16000	20000	20000	LSB/deg/s
Scale factor repeatability (1σ)	<50	<100	<50	ppm
Scale factor temperature drift (1σ)	±300	±500	±500	ppm
Scale factor non-linearity (1σ)	<300	<300	<300	ppm
Bias instability (1σ at 25°C)	<0.3	<0.3	<0.1	deg/hr
Bias stability (10s at 1σ)	<3	<2	<1	deg/hr
Angle random walk	<0.125	<0.125	<0.05	°/√h
Bias repeatability (1σ at 25°C)	<3	<2	<1	deg/hr
Accelerometer
Range	30			g
Bias stability (10s 1σ)	<50			ug
Bias monthly repeatability (1σ)	100			ug
Bias temperature coefficient	<20			ug/℃
Bias temperature hysteresis	<1.5			mg
Scale factor Non-linearity	<500			ppm
Scale factor monthly repeatability	<30			ppm
Scale factor temperature coefficient	10			ppm/℃
Scale factor class Ⅱ non-linearity coefficient	<100			ug/g²
Scale factor	250000			Lsb/g