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IntroductionP H Dike
Permanent Magnet Test Methods and Their Validity in Determining Product
Core Loss Test for Narrow Silicon Steel StripJ A Ashworth
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60 cycles accuracy across-grain air gap alloy ammeter apparatus average calculated calibrated cent centimeters core loss corner Cyclograph demagnetizing determined diameter domains double-lap joints eddy current electrical Epstein frame Epstein samples Epstein strips equation error ferromagnetic flux density flux voltmeter frequency galvanometer gausses grain hysteresis loop indicated internal micro-stresses kilogausses lamination load magnetic analysis magnetic circuit magnetic field magnetic materials magnetic properties Magnetic Testing magnetization curve magnetizing force magnetomotive force measuring element medium ments meter minimum mutual inductor netic netizing normal induction number of turns obtained oersteds ohms oscilloscope path length Permalloy permanent magnet permeability permeability and core permeameter permeance procedure range resistance ring saturation secondary Section sheet shown in Fig silicon steel solenoid standard stress test coil test frame test method test pieces test specimen thickness tion value of H variations volt-amperes voltage wattmeter watts width winding wire