Position measuring system ER-GyroTracker-21

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The ER-GyroTracker-21 is an intelligent real-time borehole trajectory surveying probe that integrates a MEMS gyro directional module and a fluxgate directional module into a compact, battery-powered probe for mining and directional drilling measurement. It supports both true-north (gyro) and magnetic-north (fluxgate) outputs and enables real-time trajectory and depth recording via wireless communication with a mining smartphone.

Key Advantages

• Gyro+Fluxgate dual system: provides both true-north (gyro) and magnetic-north (fluxgate) outputs, with automatic switching to gyro mode under magnetic interference and mutual backup to improve measurement reliability.
• MEMS strapdown inertial navigation: minimizes magnetic-field influence for stable trajectory measurement in complex underground environments.
• Ultra-small probe diameter (Φ24.75 mm): compatible with small-diameter drill tools and constrained boreholes.
• Wireless data transmission (Bluetooth) and options for real-time measurement or post-drill verification.
• Automatic depth measurement via built-in sensor, with optional depth synchronization with the drill rig through the smartphone.
• User-friendly analysis software: multi-borehole management, 2D/3D trajectory visualization, Excel/CAD export and one-click Word report generation.

Applications

• Real-time borehole trajectory measurement during drilling in coal and metal mines.
• Azimuth measurement for directional and straight-hole drilling operations.
• Detection and verification of deviation accuracy in directional drilling.
• Borehole depth measurement and record validation.

Technical Features

• Real-time trajectory and depth measurement with built-in high-precision angle and depth sensors for accurate spatial tracking and automatic depth recording.
• On-site results display on a mining-grade smartphone: data tables, trajectory curves and quality evaluation available immediately.
• Compatible with multiple drill pipe diameters: supports Φ42 mm / Φ50 mm / Φ63.5 mm / Φ73 mm.
• Flexible operation modes: in-drill real-time measurement or post-drill push-rod/handheld verification.
• Bluetooth data exchange between probe and smartphone, plus wired communication (TTL) option.
• Advanced analysis functions: 3D spatial trajectory, 2D horizontal projection, cross-section switching, automatic deviation calculation, blank-zone detection, Excel/CAD export and one-click Word report generation.

Technical Specifications

• Model No.: ER-GyroTracker-21
• Sub Model: A / B / C
• Type of system: Gyro + fluxgate dual system (A) / Gyro (B) / Fluxgate (C)
• Inclination measurement range: -90° ~ 90°
• Inclination measurement accuracy: ±0.1°
• Azimuth measurement range: 0 ~ 360°
• Azimuth measurement accuracy: 1°
• Propulsion mode: Connect to drill pipe for real-time detection or connect to push rod for post-drill re-measurement
• Communication mode: Bluetooth and wired (TTL signal)
• Measurement point interval: 1 ~ 60 s adjustable
• Depth measurement range: Unlimited
• Depth measurement accuracy: ≤ 1 m
• Probe dimension: Φ24.75 mm × 700 mm
• Probe pressure resistance: ≥ 12 MPa
• Power supply: Battery-powered / USB-powered
• Battery: DC 11.1 V lithium polymer, continuous working time ≥ 20 hours / USB
• Operating temperature range: 5 ℃ ~ 55 ℃
• Storage temperature range: 0 ℃ ~ 60 ℃
• Communication interface: TTL signal
• Memory: 32 GB / 64 GB
• Mining-specific mobile phone – Explosion-proof mark: Exib I Mb
• Mining-specific mobile phone – Protection level: IP68
• Mining-specific mobile phone – Battery & runtime: 3000 mAh lithium polymer battery, continuous working time > 20 hours
• Mining-specific mobile phone – Processor & memory: Quad-core 1.2 GHz, 4 GB RAM, 64 GB ROM
• Mining-specific mobile phone – Sensors: Gravity, light, distance sensor, electronic compass
• Mining-specific mobile phone – Camera: Rear 13 MP, front 2 MP, autofocus, supports up to 3096 × 4128 pixel photos
• Mining-specific mobile phone – Display: 5.0-inch capacitive multi-touch, 1280 × 720 pixels
• Mining-specific mobile phone – Data functions: Wi-Fi, Bluetooth, Micro USB 2.0; Network: All-network compatible
• Mining-specific mobile phone – Dimensions & weight: 158 mm × 83 mm × 16 mm; 245 g