North Seeking Mems Imu For Gyro Tools 3 (1)

MEMS Gyro Directional Module for GWD

ER-Gyro-15
1.Adopt the latest three-axis MEMS gyro, three-axis MEMS plus meter strapdown inertial measurement technology;
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

ER-Gyro-15 MEMS Gyroscope Module for GWD

Introduction
ER-Gyro-15 is equipped with a high-precision MEMS gyroscope with self north 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 for oil and gas logging and other fields.

Features

Adopt the latest three-axis MEMS gyro, three-axis MEMS plus meter strapdown inertial measurement technology
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°;
The well inclination measurement angle is up to 0.1°; the gyro tool face angle accuracy can reach 1°/secL (L represents latitude);
It can measure while drilling and can also measure continuously;
It is not affected by magnetic fields
It has the function of self-seeking north
5~125°C full temperature calibration compensation, adapt to extreme environments;

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

Er Mns 09h North Seeker Coordinate Polarity Definition (front View)

Figure 1. ER-Gyro-15 gyro tool orientation module coordinate polarity definition (front view)

Specifications

Model	ER-Gyro-15			ER-Gyro-15H
Performance	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 hold 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)	120mm x Φ30mm
Weight(g)	≤150g