SCINTREX ENVI-MAG User Manual

Applications
B1-10 ENVI-MAG Manual
Removing magnetic variations
Depending upon the requirements of your site survey, you may choose to
remove, or not to, these variations in time of the magnetic field from your
collected magnetic data.
There are three ways in which you can remove these variations:
1. Use a base station magnetometer to record all the changes in time
and then use this data to remove the change from the readings in the
field magnetometer. This is the most accurate way of doing it, but also it
is more expensive, as two complete instruments are required.
2. Use a tie-point method while doing the total field survey. This assumes
that the field is changing slowly and evenly between the first time you
measured the value at a station and the next time you check-in to that
station again. This method is not as accurate as using a base-station,
but if the field is not changing rapidly, it is quite adequate to locate an
anomaly. This technique may be the most cost-effective, as it only
requires one magnetometer.
Regional Warning Centers for geomagnetic forecasts.
Location Telephone Fax Telex
Boulder, USA
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Ottawa, Canada
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Sydney, Australia
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Tokyo, Japan
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Paris, France
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Prague, Czech Rep.
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Delhi, India
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Moscow, Russia
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Warsaw, Poland
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Beijing, China
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SCINTREX ENVI-MAG Specifications

General

Brand	SCINTREX
Model	ENVI-MAG
Category	Measuring Instruments
Language	English