BARTINGTON INSTRUMENTS
Page 48 of 82 OM0408/49
14.1. General Description
The MS2K sensor is designed to provide highly repeatable measurements of the volume
magnetic susceptibility of moderately smooth surfaces. Key applications are description of
magnetic stratigraphy and identification of horizons. Characterisation of outcrops and logging of
split cores are also possible.
Although similar in design to the MS2E, the MS2K coil shape is more circular, offering a greater
depth of penetration, with slightly lower spatial resolution.
Each sensor is individually calibrated to measure true
c
vol
when measured against a flat surface
greater than 10mm depth, and also individually calibrated to compensate for temperature
induced drift.
The sensor is housed in a lightweight enclosure and is fitted with a pistol grip. The active region
of the sensor is 25mm in diameter at the tip of a cylinder and is protected by a wear-resistant
ceramic disk. The isotropic 25mm diameter response pattern gives good surface integration
without sacrificing resolution, as shown in Figure 18.
The sensor connects to the MS2 meter via the supplied TNC-TNC 1 metre length co-axial cable.
Measurements are accomplished to 1 x 10
-6
CGS in one second on the x1.0 range on the MS2
meter.
Note:
Do not use this sensor within 100mm of large conductors or magnetic structures.
Aluminium clad cores are therefore excluded.
The sensor, calibration sample and cable are supplied in a polycarbonate carrying case.
14.2. Characteristics
14.2.1. Sensitivity
A detailed description of the FWHM response is given in the diagram in the product brochure.
The response is reduced by approximately 50% at 3mm depth.
