It consists of two triaxial
fluxgate sensors and the associated electronics.
A series of Zero-Gauss Chambers provides the low magnetic field required for sensitive scientific experiments or when developing devices based on magnetic field sensors such as
fluxgate compasses.
Nowadays, there are many types of magnetic field sensors, including
fluxgate sensors, AMR sensors, search coil sensors, GMR sensors, Hall Effect sensors, and other magnetic field sensors.
In particular, the instrumentation comprises a
fluxgate magnetometer FGE--Danish Meteorological Institute and a
fluxgate vector magnetometer Geomag M390 as well as an Overhauser effect magnetometers GSM90.
The other housing contains a three-component
fluxgate magnetic sensor with a two-component tilt sensor, its electric circuit, an amplifier for the two-component electric field measurement, a temperature sensor and a data recorder.
A geophysical investigation was undertaken in 2013 using ground penetrating radar, a
fluxgate dual sensor gradiometer and metal detector to identify footings or soil disturbance.
This survey, known as the Ross Sea
Fluxgate mission, aimed to help researchers track the movement of sea ice in this critical region.
Providing a much more intelligent compass to the boat's autopilot and navigation system compared to traditional
fluxgate models, the Raymarine 9-axis unit compensates for heel quickly and self-corrects but best of all doesn't require calibration --often the bane of boaters when the system receives a shock and requires resetting.
Operators of the machine - a
fluxgate gradiometer -had to remove all items of metal before starting the work, so findings were not distorted.
The vehicle navigation relies on a satellite-based GPS receiver, a
fluxgate compass, a 3-axis inclinometer, a pressure sensor, and a Doppler velocity log.
A
fluxgate compass was used to log the pitch and roll of the moving boat.
The
fluxgate and the magnetic compasses in the P-38 aren't reliable and can't be trusted because they can't be swung properly.
