BARTINGTON INSTRUMENTS
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Figure 10. Using a non-magnetic ruler with MS2E sensor.
A non-magnetic (plastic) ruler (Figure 10) can be fixed or supported along the core to gauge the
measurement interval, which might typically be 5cm. For closer measurement intervals, e.g.
3mm, it may be more convenient to prepare a marker tape, stepped off and numbered for each
measurement point.
8.3.5. Core Logging
Note:
Allow the core and sensor to reach the same temperature before attempting
measurements.
After zeroing to ‘air’, obtain the first measurement. Then move on to the next point and take a
second measurement. Check the baseline drift by performing a measurement to ‘air’. If the drift
level is unacceptable then further time for temperature equilibration should be allowed.
Five or so measurements should normally be possible before the need to re-zero. Drift
compensation is accomplished automatically using Multisus software.
The choice of orientation of the sensor relative to the core will depend on whether detailed
examination of core lamination is to be attempted or not.
8.4. Care of Sensor
Caution:
The sensor is ruggedly constructed. However, the sensing surface is constructed
of a very thin layer of alumina (aluminium oxide) which can be fractured if it receives a
heavy blow from a sharp object. Therefore, every precaution should be taken not to drop
