APPARATUS FOR MEASURING A SHIELDING DEGREE OF MAGNETIC FIELD

摘要

PURPOSE: A shielding degree measurement apparatus of magnetic field is provided to easily measure the shielding degree of magnetic field by using simply circuit. CONSTITUTION: A rectifier(1) comprising a bridge diode(D1-D4) through a variable transformer(T) is electrically connected to an AC power supply(AC). A capacitor(C) having high capacitance is electrically connected to the rectifier(1) through a resistor(R). An electric-magnetic field generation apparatus(2,2') is connected to the capacitor(C). The electric-magnetic field generation apparatus(2,2') is rounded a coil(3) to two bobins(4), respectively.