Abstract:Electromagnetic injection clamp is an injection device composed of capacitor and inductor, also called electromagnetic coupling clamp. It injects signals into cables by coupling, that is, by measuring the power generated by interference sources and feeding it into their power lines. It is usually used to test the conducted disturbance immunity of radio frequency induction field, and is the main equipment for the conducted disturbance immunity test of radio frequency induction field. In this paper, the calibration methods of electromagnetic injection pliers are summarized and studied, which can provide a reliable reference for the use and calibration of electromagnetic injection pliers.