Centre National Detudes Spatiales

Olivier Crepel

Romain Desplats

Philippe Perdu

Felix Beaudoin

Félix Beaudoin

A device () used to measure at least one component of a magnetic field, includes a magnetoresistive sensor () and a measuring chain (). The input of the measuring chain is connected to the magnetoresistive sensor (), while the output thereof is intended to supply information that is representative of the magnetic field in the region of the sensor. In addition, the measuring chain () includes elements () for isolating a frequency component of the signal from the sensor representative of the magnetic field for a unique pre-determined frequency (FI).

Magnetic-field-measuring device

A magnetic-field-measuring probe includes at least one magnetoresistive or magnetoinductive sensor which is sensitive to the magnetic field along a privileged measurement axis. The probe includes: at least two magnetoresistive or magnetoinductive sensors () which are rigidly connected to one another in a position such that the privileged measurement axes thereof are parallel and offset in relation to one another in a direction that is transverse to the privileged measurement axes; and output terminals specific to each magnetoresistive or magnetoinductive sensor, in order to supply a signal that is representative of the magnetic field measured by each sensor along the privileged measurement axis thereof.

Magnetic-field-measuring probe

A magnetic-field-measuring probe includes at least two magnetoresistive sensors which are sensitive to respective magnetic fields along a determined measurement axis. The at least two magnetoresistive sensors are rigidly connected to one another in a position such that the measurement axes thereof are at an angle other than zero. Output terminals specific to each magnetoresistive sensor are used to supply a signal that is representative of the field measured by each sensor along the measurement axis thereof. The difference between the derivative of a first magnetic field relative to a second direction and the derivative of a second magnetic field relative to a first direction is calculated to determine a component of current to be measured.

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Mondonville, France

Olivier Crepel