BMP-02 Multi-Parameter Borehole Probe

The BMP-02 is a combination probe designed to measure a wide range of physical rock properties in a borehole. The probe is equipped with the following sensors:

  • 3-component magnetometer
  • Magnetic susceptibility sensor
  • 16”& 48” normal resistivity arrays

The primary sensor is the fluxgate magnetometer that measures the total magnetic field. The three components are also reported, but are of limited use. If the vectors of the magnetic field are required, we recommend the multi-parameter model BMP-03.

The BMP-02 is controlled by an on-board microprocessor, which can sample up to 8 separate sensors at a rate of 2 Hz with up to 24 bits of resolution. The sensors are contained in a non-magnetic, non-conductive
housing which is pressure rated to 2000 meters. The BMP-02 is compatible with the BIN-04 digital data interface and IFG Corporation’s standard 4 conductor logging cable.

The BMP-02 is a cost-effective way to obtain a number of geophysical logs in a single survey run. The probe provides electrical and magnetic logs for lithology mapping. The three-component magnetometer is for the measuring of the total magnetic field and the magnetic vectors. The combination of the magnetometer and the tilt information is for performing borehole deviation and vector magnetic surveys.


Magnetometer  Fluxgate +/-100,000nT  0.1nT
Susceptibility Induction 105 to 10-1cgs 10x105cgs
Resistivity 16”& 48” 0 to 50,000 ohm-m 1ohm-m


ELECTRODES Naval brass
HOUSING   High strength filawounds tube
MAXIMUM DEPTH 2000 meters
CONNECTION  4-pin connector (Gearhardt Owen)
TEMPERATURE RANGE Storage: -35o to +70oC
Operating: 0o to +70oC
Extended: 0o to +120oC
OUTPUT 20mA current loop, 4800 baud
SUPPLY VOLTAGE 24VDC @ 5W (at probe header)
DIMENSIONS 40 mm diameter x 2.1 meters long
WEIGHT 5.6 kg