To provide an inspecting method of an electromagnetic equipment of high general usability, whereby an attractive condition of an attractive member of the electromagnetic equipment of a solenoid valve or the like to an electromagnet can be easily surely inspected for multifarious electromagnetic equipment, and confirmation thereof can be continuously performed during carrying of a current in a coil of the electromagnet.
In this confirming method of an attractive condition in an electromagnetic equipment, in a coil 4 of an electromagnet in the electromagnetic equipment, from a constant current carrying circuit 9, while carrying a current formed by synthesizing a DC constant current and a fine square wave current (AC current), an AC component of applied voltage to the coil 4 is extracted by a capacitor 10, by comparing a level thereof with a prescribed reference level in a comparator 13, an attractive condition (whether attracted or not) to the electromagnet of attracting member of the electromagnetic equipment is confirmed.
WO/2023/193638 | BOBBIN STRUCTURE AND ELECTROMAGNETIC COIL |
JP2000088131 | FLOW RATE CONTROL DEVICE FOR VALVE |
WO/2010/032743 | CONTROL DEVICE FOR STROKE OF ACTUATOR |
IRITANI NOBUHIRO
NIPPON DENSHI DEVICE KK