Raw data processing capabilities: Waveform viewing, recalculation with automatic bad-point removal 2D-to-1D conversion Array/device merging Online inversion
The GPM-10 proton magnetometer supports measurement of the Earth's magnetic total-field intensity and horizontal/vertical gradient measurement; with an external GNSS it achieves positioning and timing (accuracy 30 ns); it supports dual modes of mobile continuous survey (Walking Mag) and base-station diurnal-variation observation; it features RS-232 remote control, USB flash drive data export, and a Chinese operation interface; the sampling rate is selectable at 3–60 s (mobile mode) / 3–3600 s (base-station mode). The product is available in two models: GPM-10 (standard) and GPM-10G (gradient).
Sensitivity 0.05 nT, resolution 0.01 nT, absolute accuracy ±0.1 nT, dynamic range 20000–120000 nT, gradient tolerance >5000 nT/m, sampling rate 3–60 s (mobile mode) / 3–3600 s (base-station mode); main unit dimensions 220×70×175 mm / 1.5 kg; operating temperature −40℃~+60℃; storage 8 GB; positioning & timing accuracy 30 ns (external GNSS); data export via USB flash drive; remote control via RS-232.
| GPM-10 | GPM-10G |
Raw data processing capabilities: Waveform viewing, recalculation with automatic bad-point removal 2D-to-1D conversion Array/device merging Online inversion
Platform capabilities: Project and data management Real-time 3D visualization Online inversion
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| Parameters | GPM-10 Standard | GPM-10G Gradient |
|---|---|---|
| Sensor Configuration | Single sensor (total field) | Dual sensors (gradient) |
| Measurement Mode | Total-field measurement | Total field + horizontal/vertical gradient |
| Resolution | 0.01nT | 0.01nT |
| Sensitivity | 0.05nT | 0.05nT |
| Dynamic Range / Range | 20000~120000nT | 20000~120000nT |
| Gradient Tolerance | >5000nT/m | >5000nT/m |
| Sampling Rate | 3~60s/3~3600s | 3~60s/3~3600s |
| Positioning & Timing | External GNSS 30 ns | External GNSS 30 ns |
| Data Storage / Output | 8 GB memory | 8 GB memory |
| Operating Temperature | -40℃~+60℃ | -40℃~+60℃ |
| Main Unit / Payload Weight | 1.5kg | 1.5 kg (×2 sensors) |
| Protection Rating | IP65 | IP65 |
| System Power Consumption | Rechargeable lithium battery | Rechargeable lithium battery |
| Max Take-off / Flight Altitude | — | — |
| Max Flight Speed | — | — |
| Post-processing Comp. Std. Dev. | — | — |
| Daily Survey Efficiency | Tens of km (Walking Mag) | Tens of km (Walking Mag) |
