Marine Magnetics SeaSPY Gradiometer

A magnetic gradiometer measures magnetic gradient in one dimension by taking the difference between two independent magnetic sensors. Since the Earth’s magnetic field is three dimensional, up to three independent gradient directions can be measured – vertical, horizontal (across-track) and longitudinal (along-track).

 

SeaSPY sensors are highly accurate and repeatable, making them ideal for gradiometers. In addition, all SeaSPY magnetometers are compatible, so you can upgrade your magnetometer to the gradiometer configuration of your choice, as you need to.

 

Our transverse gradiometers connect the sensors with a rigid 1.5m structure. They are well suited for close-in, precision surveys for small ferrous targets where short sensor separation is required.

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