The BSS-02B magnetic susceptibility borehole sonde is used in mineral exploration, particularly for discrimination of kimberlites in diamond exploration, and for stratigraphic correlation to depths of 6000 metres.

The sonde has a diameter of 43mm and is designed and calibrated for a 50mm borehole. Rated at 120°C, 10,000psi.

The sonde comprises two sections, an aluminium alloy cylindrical enclosure containing electronic circuitry and a high-strength non-magnetic enclosure in which the detector is located.

The sonde operates from an unregulated 15V nominal supply and provides an output in the form of a three-wire CMOS serial interface for integration into the client's data acquisition system.

Features

• Wide measuring range: 10-5 to 10-1 cgs
• Low operating frequency: 1.36kHz
• Good vertical resolution: 25mm with dual coil system
• Operates to pressures of 10,000 psi
• Operates to temperatures of 120°C: calibrated at 100°C
• Fast: logs at up to 21 readings per second
• High spatial resolution: will resolve strata down to 25mm
• Low temperature induced drift: <±20x10-5 cgs over the calibrated temperature range 0°C to 100°C