Analysis of ferroprobe operation with a controllable nonlinear electrical resistance in the exciting circuit: 38839 Krotov,L.N.; Shleenkov,A.S.; Rozenfel'd,E.V.; Shcherbinin,E.V.; Kop'ev,M.A. Soviet Journal of Noneestructive Testing,Vol. 23, No. 7, pp. 455–462 (Mar. 1988) |