solenoid

Electromagnet using copper or other materials of metal cable winding, can be understood as a kind of near-field magnetic field transmitter antenna, the use of such equipment can produce localized areas of high magnetic field density, especially suitable for the need to withstand high magnetic field strength harassment of the EMC immunity test. However, compared to the Holmhertz coil, low-frequency magnetic field immunity test system, the electromagnet can only test a very small volume of the EUT, so it should be based on the required test field strength and the size of the sample to determine the appropriate test equipment.