High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

ER-MG2-022(<0.1°/hr)
1. <0.02°/hr bias instability;
2. <0.025°/ √h angular random walk;
3. <0.1°/hr bias stability.

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Introduction

ER-MG2-022 High-temperature North Seeking MEMS Gyro For Gyro Tools(125°C)

Introduction

The ER-MG2-022 is a single-axis MEMS angular rate sensor (gyroscope) capable of measuring angular velocity up to a maximum of ±100°/s with digital output compliant to SPI slave mode 3 protocol. Angular rate data is presented as a 24-bit word.

The ER-MG2-022 is intended for north seeking applications. An advanced, differential sensor design rejects the influence of linear acceleration, enabling the ER-MG2-022 to operate in exceedingly harsh environments where shock and vibration are present.

The ER-MG2-022 is available in a hermetically sealed ceramic LCC surface mount package, and is capable of operating at 5 V supply and a wide temperature range (−45°C to +125°C).

Features

High temperature;

Special for borehole survey tools

Proven and robust silicon MEMS gyro

0.02°/hr bias in-run stability

0.025°/√hr Angular Random Walk

Digital output (SPI slave)

5V operation (4.75 ~ 5.25V supply)

Low power consumption (35 mA)

High shock and vibration rejection

Hermetically sealed ceramic LCC surface mount package (11 x 11 x 2mm)

Integrated temperature sensor

RoHS compliant

Application

North seeking in logging tools/gyro tools

Pointing, steering and guiding in advanced mining/drilling equipment

Precision attitude, position measuring in navigation grade MEMS IMU/ INS

Petroleum exploration

Specifications

High Temperature MEMS Gyro Range	deg/s	100
Bandwidth (BW@3DB Customizable)	Hz	12.5
Output Accuracy (Digital SPI)	bits	24
Data Output Rate (ODR)(Customizable)	Hz	2K
Delay (Customizable)	ms	<3
Bias Stability (Allan Curve @Room Temp)	deg/hr (1σ)	<0.02
Bias Stability (10s standard deviation @Room Temp)	deg/hr (1σ)	<0.1
Bias Stability (1s standard deviation @Room Temp)	deg/hr (1σ)	<0.3
Bias Drift	deg/Hr/°C	<0.25
Bias Drift (After temp compensation)	deg/Hr/°C	<0.05
Bias Repeatability (Room Temp)	deg/hr (1σ)	0.1
Scale Factor Repeatability (Room Temp)	Ppm (1σ)	<100ppm
Scale Factor Temp Drift (1sigma)	Ppm (1σ)	±500ppm
Scale Factor Nonlinearity (Full Temp)	ppm	<300ppm
Random Walk (ARW)	°/ √h	<0.025
Resolution	°/hr	0,05
Bandwidth Noise (Peak to Peak)	deg/s	±0.10
G-value Sensitivity	°/hr/g	<1
Vibration Rectification Error (12gRMS, 20-2000)	°/hr/g (rms)	<1
Power-on Time (Valid Data)	s	1
Shock (charged)	200g (1ms, 1/2 sine)
Shock Resistance (uncharged)	1.8wg 3ms
Vibration (charged)	12g rms (20Hz to 2kHz)
Operation Temp	-45°C–+125°C
Storage Temp	-55°C–+125°C
Size	11x11x2.5mm
Package	LCC