MULTI - CHANNEL SYSTEM COMPRISING SQUID DEVICES FOR MEASURING SPATIAL DISTRIBUTION OF MAGNETIC FLOWS.

摘要

The invention relates to a multi-channel system comprising SQUID devices for measuring the spatial distribution of magnetic fluxes. BR/ In this system comprising sensors formed of SQUID devices and connected to an evaluation device (AWE) comprising regulation and compensation loops, sensors (HFS1 to HFS3) of the high frequency SQUID device type are used. , the evaluation device (AWE) is designed for serial interrogation of the sensors, integrators (I1 to I3) of the flow control loop are provided for storing the compensation flows, and high frequency generators (HFG1 to HFG3) make it possible to operate the sensors, to separate the information, in the dissipative mode at different frequencies. BR/ Application in particular to biomagnetic measurements. / P