COERCIMETER FOR NON-DESTRUCTIVE MEASUREMENT OF THE COERCIVITY OF STEEL SHEETS
J. Billan · Le Journal de Physique Colloques · 1984
A special instrument has been built to measure the coercivity directly on steel sheets without having to cut samples. It will be used to perform the 8000 coercivity measurements which will be needed during the production of the 11'000 ton of steel sheets for the LEP dipole magents. The coercimeter allows local and directional coercivity measurements to be made on a steel sheet with an accuracy of 3 % and a reproductibility of better than 1 %. The permeability can also be measured with similar precision.