MEMS Orientation Module to Replace Fluxgate

ER-Gyro-19
1.Adopt the latest three-axis MEMS gyro, three-axis MEMS accelerometer strapdown inertial measurement technology, replace the fluxgate sensor in situ;
2.Subvert the size of traditional gyro tools, extremely small, with a diameter of only 30mm and a length of 120mm, which can be easily embedded in the narrow front-end space such as the probe tube;
3.All-solid-state design, excellent impact and vibration resistance.

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Introduction

MEMS Orientation Module to Replace Fluxgate

Introduction
ER-Gyro-19 is equipped with a high-precision MEMS gyroscope with self-seeking function. By integrating the real-time data of the three-axis MEMS gyroscope and the three-axis accelerometer, it can realize dynamic and continuous tracking measurement of the well inclination angle, tool face angle and azimuth angle.

Traditional magnetic sensitive element inclinometers cannot guarantee the azimuth measurement accuracy in casing, tubing, drill pipe and well sections affected by magnetic interference. For such abnormal magnetic field environment, gyro orientation technology based on the earth's rotation angular velocity sensing is required.

The device supports measurement while drilling, point measurement and continuous measurement, can quickly collect drilling data, control drilling trajectory, greatly shorten measurement time, and significantly improve operation efficiency. It is an ideal equipment in the fields of oil and gas logging.

Features

Adopt the latest three-axis MEMS gyro, three-axis MEMS accelerometer strapdown inertial measurement technology, replace the fluxgate sensor in situ;
Subvert the size of traditional gyro tools, extremely small, with a diameter of only 30mm and a length of 120mm, which can be easily embedded in the narrow front-end space such as the probe tube;
All-solid-state design, excellent impact and vibration resistance;
30s fast alignment, azimuth accuracy 1°, 90s precise alignment, azimuth accuracy 0.5°;
Well inclination measurement angle up to 0.1°; gyro tool face angle accuracy can reach 1°/secL (L represents latitude);
Can measure while drilling or continuously;
Not affected by magnetic field;
With self-seeking function;
5~125°C full temperature calibration compensation, adapt to extreme environments.

Applications
1) North-seeking logging tools/gyroscopes;
2) Pointing and guidance of advanced mining/drilling equipment;
3) Oil inclination north-seeking;
4) Pipeline measurement.

Er Gyro 19 Gyro Tool Orientation Module Coordinate Polarity Definition (top View)

Figure 1. ER-Gyro-19 gyro tool orientation module coordinate polarity definition (top view)

Performance parameters

Model	ER-Gyro-19			ER-Gyro-19H
Performance Indicators	Parameter
Azimuth accuracy(1σ,°secψ)	1	0.5	0.25	1	0.5
Gyro tool face angle accuracy(°,1σ)	1/secL(L stands for latitude)			1/secL(L stands for latitude)
Well inclination alignment accuracy(°,1σ)	0.1			0.1
Azimuth hold accuracy	20min			20min
Attitude maintenance accuracy	20min			20min
Azimuth measurement range(°)	0~360			0~360
Gravity tool face angle measurement range(°)	-180~180			-180~180
Gyro tool face angle measurement range(°)	0~360°			0~360°
Well inclination measurement range(°)	0~90			0~90
Update rate (Hz)	100			100
Power supply and working environment
Operating temperature(℃)	5~+85			5~125
Storage temperature (℃)	0~+90			0~130
Wide voltage (V)	6~12V
Power (W)	2			3
Communication interface	RS-422
Appearance characteristics
Size (mm×mm)	136.8mm x 20.3mm x 19mm
Weight (g)	≤150g