High Precision Stable-control MEMS IMU

ER-MIMU-03 (<0.3º/h) Features:
1. Measuring range ±400º/s;
2. Bias instability (Allan variance) <0.3º/h;
3. Bias (Full Temp) <9°/h.

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Introduction

ER-MIMU-03 High Precision Stable-control MEMS IMU

Inertial Measurement Unit, referred to as IMU, is a device to measure the attitude angle (or angular velocity) and acceleration of the three axis of the object. Gyroscope and accelerometer are the core devices of inertial navigation system (INS). With the built-in accelerometer sensor and gyroscope, the IMU can measure the linear acceleration and rotation angular velocity from three directions and can obtain the attitude, velocity and displacement information of the carrier through the resolving.

ER-MIMU-03 uses MEMS accelerometer and gyroscope with high quality and reliability, RS422 and external communication, baud rate can be flexibly set between 9600~921600, through the communication protocol to set the user’s required communication baud rate. With X, Y, Z three-axis precision gyro, X, Y, Z three-axis accelerometer with high resolution, can be output by RS422 X, Y, Z three axis of gyroscope and accelerometer’s original hexadecimal complement data (including gyro hexadecimal complement the numerical temperature, angle, the accelerometer hexadecimal temperature, the acceleration hexadecimal complement number); It can also output float dimensionless values of the gyroscope and accelerometer processed by the underlying calculation.

Applications

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.

Integrated Navigation Systems & Inertial Guidance System

Flight Control & Guidance System

Attitude Heading Reference Systems (AHRS)

Stabilization of Antennas, Cameras & Platforms

Features

Volume: 38.6 mm×44.8 mm× 21.8 mm;

5V power supply, low power consumption 1.0W;

Light weight: 55g;

Products include X, Y, Z three axis MEMS gyro and X, Y, Z three axis MEMS accelerometer;

RS422 bus communication, baud rate from 9600~921600 can be set.

Specifications

Item	Parameter		Unit
Gyro Performance
Range	±400		deg/s
Bandwidth (-3dB)	250		Hz
Scale Factor at 25°C	16000		lsb/deg/s
Scale Factor Repeatability (1σ)	<50		ppm
Scale Factor VS Temperature (1σ)	300		ppm
Scale Factor Non-Linearity (1σ)	<300		ppm
Bias Instability	<0.3		deg/hr
Bias stability (10s 1σ)	<3		deg/hr
Bias stability (1s 1σ)	<9		deg/hr
Bias Run-Run (1σ)	<1		deg/hr
Accelerometer Performance
Range	10-30	30-50		g
Bandwidth	100	100		Hz
Bias Stability (10s,1σ)	<30	<50		ug
Bias Repeatability	200-500	500-700		ug
Bias Temp Coefficient	<20	<50		ug/℃
Bias Temp Hysteresis	<0.5	<1		mg
Factor Scale Non-linearity	<500	<1000		ppm
Factor Scale Repeatability	<300	<300		ppm
Factor Scale Temp Coefficient	10	10		ppm/℃
Class II Non-linearity Coefficient	<100	<100		ug/g2
Factor Scale	4-8*10⁶	1.5-2*10⁵		Lsb/g
System Performance
Supply Voltage	5v
Supply Consumption	1w
Interface	RS422
Vibration	6.06g (10~2000Hz)
Shock	5000g, 0.1ms
Operate Temp	-45℃~+ 85℃
Storage Temp	-55℃~+ 105℃
Weight	≤55g
Size	44.8mm×38.6mm×20mm
All values typical at +25,+12Vdc unless otherwise statement