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Kilometer-depth in-hole transient electromagnetic instrument with 24-bit ADC, time/phase stacking and three-channel measurement resolving sub-microvolt responses.
The Mining Borehole Transient Electromagnetic Instrument is a kilometer-depth in-hole transient electromagnetic instrument with high signal-measurement accuracy. Using anti-interference front-end conditioning, a 24-bit high-speed ADC and time/phase-domain stacking with programmable gain, it resolves response signals below the microvolt level with full three-channel measurement.
Transient electromagnetic (TEM) surveys from boreholes are a powerful geophysical method for detecting water bodies, anomalous geological structures and other conductive targets ahead of mining. The Mining Borehole Transient Electromagnetic Instrument is a kilometer-depth in-hole TEM instrument engineered for the very weak signals these surveys produce deep in the ground.
Its high signal-measurement accuracy comes from a carefully designed signal chain: anti-interference front-end conditioning cleans the incoming signal, a 24-bit high-speed ADC digitizes it with wide dynamic range, and time-domain and phase-domain stacking with programmable gain accumulates repeated measurements to extract signals from noise. The result is the ability to resolve response signals below the microvolt level — essential for detecting targets at kilometer depth.
Full three-channel measurement (X, Y, Z) supports accurate localization of anomalous bodies based on signal-response differences between the three orthogonal components. Instead of only detecting that an anomaly exists, the X/Y/Z data helps determine its direction and position relative to the borehole. This makes the instrument a practical tool for in-hole TEM surveys in coal mines and other mining applications, supporting advanced water-prevention and geological hazard assessment.
| Parameter | Value |
|---|---|
| Instrument Type | In-hole transient electromagnetic instrument |
| Depth Capability | Kilometer depth |
| ADC | 24-bit high-speed |
| Signal Processing | Time/phase-domain stacking, programmable gain |
| Measurement Channels | X, Y, Z (full three-channel) |
| Sensitivity | Below microvolt level |
In-hole transient electromagnetic surveys, water-bearing structure detection, geological hazard assessment, and mine water prevention.
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The company is a provider of complete solutions for mine rail transportation dispatching systems and intelligent mine signal control and safety dispatching.
