What is a Magnetometer
A magnetic field is the area around a magnet, magnetic object, or an electric charge in which magnetic force is exerted. Earth behaves like a giant magnet.
The two primary characteristics of magnetic fields are their strength (referred to as magnetic flux density or magnetic induction) and direction.
A magnetometer is a device that measures the magnetic field at a point where it is.
Types of Magnetometers
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Scalar Magnetometers
Measure only the strength of the magnetic field. -
Vector Magnetometers
Measure both the strength and direction of the magnetic field.
How it works
By measuring the magnetic field at multiple points across a search area and analyzing the data, magnetometers can identify anomalies where the magnetic field differs from the average level. These anomalies often indicate the presence of magnetic objects hidden beneath the surface.
The most common measurement unit for the magnetic flux density (or magnetic induction) is nanotesla (nT). It’s what you will get in the results of measurements, magnetometer data files, etc
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