An automatic measurement apparatus for low value magnetic flux with high resolution

摘要

When a low value flux is to be measured the induced signal in measuring coil would be very weak and the instrument resolution becomes very important[1]. Here a nanovoltmeter as the preamplifier is used to detect the induced signal from measuring coil and a digital integrator is followed to obtain the flux value. Thus a resolution of less than lnWb for flux measurement is reached.