Rocks and ores in nature have different magnetic properties, which can produce different magnetic fields. It makes the earth's magnetic field change in local areas, resulting in geomagnetic anomalies. These anomalies can be studied by magnetic and magnetic instruments. Magnetic exploration is one of the common geophysical exploration methods. It is mainly used to find and explore related minerals (such as iron ore, lead-zinc ore, copper ore, etc.) and geological mapping.
The proton precision magnetometer is used to measure the magnetic field by using the lamore precession effect of static excited protons in the geomagnetic field.
| Number of channels: 1 channel (standard configuration, time-sharing gradient measurement) |
| 2 channels (optional, gradient can be measured at the same time) |
| Measurement range: 20000 NT ~ 100000 NT |
| Measurement accuracy: ± 0.5nt (fine mode); ± 1nt (normal mode) |
| Resolution: 0.05nt (fine mode); ± 0.1nt (normal mode) |
| Allowable gradient: ≤ 8000nt / M |
| Measurement speed: ≤ 3 seconds / reading (fine mode); ≤ 2 seconds / reading (normal mode) |
| Base station measurement interval: 2-60 seconds, can be set |
| GPS positioning accuracy: < 2.5 m CEP |
| Storage data: more than 2 million measuring point readings, with power failure protection function |
| LCD: 160 × 160 graphic LCD with backlight |
| Keyboard input: 16 keys |
| Communication interface: USB standard serial port |
| Power supply: built in rechargeable lithium battery (it can support measuring readings no less than 4000 times), |
| External 12V power supply can also be selected |
| Host volume: 206 mm × 85 mm × 155 mm |
| Host weight: 1.5kg (including battery) |
| Probe volume: φ 75mm × 155mm |
| Probe weight: 0.8 kg |
| Working temperature: - 10 ℃～ + 50 ℃ |
