Magnetovision
From Wikipedia, the free encyclopedia
Magnetovision is the measuring technique enabling the visualization of magnetic field distribution in a given space.
Magnetovision measuring stand consists of a magnetometer, X-Y or X-Y-Z movement mechanism and data processing and visualization system. Following modes of magnetovision signal acquisition are possible:
- magnetometer moves in the measurement area (e.g. over tested object)
- tested object moves against the magnetometer
- array of magnetic field sensors is used
Magnetometers
Typically, following types of sensors may be used:
- magnetoresistance effect based sensors[1]
- fluxgate magnetometers
- Hall effect sensors
- SQUIDs
Types
There are different modes of magnetovision measurements. Measurements may be performed in 2D (X-Y) or 3D (X-Y-Z). Moreover, measurements of magnetic field may be absolute, differential or gradiometric.
