Dual System (Gyro+Fluxgate) Trajectory Surveying Device for Mining

ER-GyroTracker-21
Two-in-One Gyro+Fluxgate system, can output both true north and magnetic north：
A)When there is magnetic field interference, it can directly switch to the Gyro Mode without picking up the drill, saving a lot of costs and time, improving efficiency and having stronger adaptability.
B)In high-precision measurement, the Gyro+Fluxgate system can serve as backups and references for each other, improving measurement accuracy and reducing errors, and minimizing the losses caused by errors.

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Introduction

The ER-GyroTracker-21 is an intelligent real-time drilling trajectory surveying device, consisting of a surveying probe（hereinafter referred to as "probe"）and a mining terminal equipment as its core system. The probe has a diameter of only 24.75mm and is equipped with high-precision MEMS gyro directional module and fluxgate directional module, supporting dual modes of true north and magnetic north output.

The probe is installed inside the drill pipe, which reduces the operational failure rate of the equipment. During the measuring while drilling process, the stability of data collection and transmission has significantly improved. It can also achieve real-time measurement of the drilling space trajectory and depth while drilling, without the need for any manual intervention throughout the process. This completely eliminates the problems of false drilling and empty drilling from the very beginning.

Via Bluetooth, the probe communicates with the mining terminal equipment to record borehole attributes at the start of drilling. After drilling, data stored in the probe is automatically transmitted to the mining terminal equipment. Through the dedicated software, the drilling space trajectory, depth data and quality evaluation results can be presented intuitively on-site, making the operation efficient and convenient.

Key Advantages

Two-in-One Gyro+Fluxgate system, can output both true north and magnetic north：
When there is magnetic field interference, it can directly switch to the Gyro Mode without picking upthe drill, saving a lot of costs and time, improving efficiency.
In high-precision measurement, theGyro+Fluxgate system can serve as backups and references for each other, improving measurement accuracy and reducing errors, and minimizing the losses caused by errors.
Employing MEMS strapdown inertial navigation system: Free from magnetic field influence, ensuring the stability and accuracy of trajectory measurement in complex underground environments.
Wireless data transmission: Bluetooth wireless communication method, breaking free from the constraints of cables, making data transmission in the underground environment more flexible and secure.
Measurement compatibility during/after drilling: It can be measured in real time during drilling, or can be manually re-measured using a push rod, suitable for different operational requirements.

Applications

Real-time borehole trajectory measurement during drilling in coal mines
Azimuth measurement for directional and straight-hole drilling
Detection of inclinationaccuracy in directional drilling
Borehole depth measurement

Specifications

Model No.	ER-GyroTracker-21
Sub Model	A	B		C
Type of system	Gyro + fluxgate dual system	Gyro		Fluxgate
Inclination measurement range	-90°~ 90°
Inclination measurement accuracy	±0.1°
Azimuth measurement range	0~360°
Azimuth measurement accuracy	0.5°		1°
Propulsion mode	It can be connected with the drill pipe to detect the drilling trajectory in real time, or it can be connected with the push rod to re-measure the trajectory after the hole is drilled.
Communication mode	Wired	Bluetooth / Wired
Measurement point interval	1 ~ 60s adjustable
Depth measurement range	Unlimited
Depth measurement accuracy	≤1m
Probe dimension	Φ24.75mm×700mm
Probe pressure resistance	≥12MPa
Way of power supply	Battery-powered / USB-powered
Power supply mode	DC 11.1V lithium polymer battery, continuous working time ≥ 12 hours (selectable to add battery to extend the working time) / USB
Operating temperature range	5℃~55℃
Storage temperature range	0℃~60℃
Communication interface	TTL signal
Memory	32GB/64GB

Technical Features

Ultra-small diameter, highly adaptable: The probe tube has a diameter of only 24.75mm, with a compact size. It can be compatible with more small-diameter drilling tools and can complete the detection work in more complex drilling environments.
Real-time trajectory & depth measurement:Built-in high-precision angle and depth sensors, simultaneously capturing the spatial trajectory and depth data of the drilling hole, achieving efficient and accurate measurement.
On-site results viewing:Immediately display measurements on the mining terminal equipment, including data tables, trajectory curves, and quality evaluation.
Compatible with multiple drill pipes:Supports Φ42mm/Φ50mm/Φ63.5mm/Φ73mm diameters.
Dual-progressive mode is optional: It supports two modes: one is the on-site detection of the drill pipe during drilling, and the other is the re-measurement after the push rod completes the hole formation. This meets the requirements of different operation scenarios.
Bluetooth + Wired Dual Communication: The probe communicates wirelessly via Bluetooth, and also supports wired connection, ensuring stable and reliable data transmission in complex environments.

Advanced Analysis Software

Multi-dimensional display of trajectory: Supports free switching between 3D spatial trajectory, 2D horizontal plane projection curve, and cross-sectional curve, presenting the drilling pattern intuitively;
Data Linkage Analysis: The measured values curve at the monitoring points is linked and displayed with the data table. Deviation values are automatically calculated, and the data differences are clearly visible at a glance.