Proton Precession Magnetometer

• Specifications

  • Display resolution: 0.1 nT

  • Absolute accuracy: 2.0 nT

  • Sensitivity: 0.3 nT (at 1/s sampling rate)

  • Measuring range: 30,000 to 60,000 nT, other ranges on request

  • Sampling rate: 1/s to 1/min or manual triggering

  • Digital interface: RS-232, 19200 baud

  • Supply voltage range: 10 to 15 V

  • Current consumption: 0.8 A typically, 2.0 A maximum

  • Dimensions of control unit: 171 mm x 130 mm x 54 mm; weight: 0.6 kg

  • Sensor dimensions: 75 mm diameter, 235 mm long

  • Sensor weight: 2.0 kg with 0.3 l fluid

  • Length of sensor cable: 2 m

  • Operating temperature range: -20 to +40 °C

  • Weatherproof rating: IP65

  • Optional GPS receiver: 1.5 m accuracy, UTC time zone

Features

• • Scalar magnetometer with low noise and high accuracy

• • Easy intuitive operation and robust weatherproof (IP65) design

• • Automatic and manual triggering, fully automatic tuning

• • Flash memory for up to 32768 measurement points (incl. geographic coordinates,

• date, and time with optional external GPS receiver)

• • Resealable sensor for repeated filling

Applications

• • Geological mapping of the Earth’s magnetic field

• • Archaeological ground magnetic survey

• • Environmental and engineering site assessment

• • Mineral exploration and UXO detection

• • Stationary use in magnetic observatories

• • Education: Teaching geological methods