A method used to assess the immunity of electronic devices to electromagnetic disturbances is presented. This technique involves injecting a controlled current directly into the harness or cable connected to the device under test. The induced current simulates the electromagnetic interference that a device might experience in its operational environment, allowing engineers to evaluate its susceptibility and identify potential weaknesses in its design.
This evaluation approach is critical for ensuring the reliable performance of electronic equipment, particularly in environments with high levels of electromagnetic noise, such as automotive, aerospace, and industrial settings. Its application helps manufacturers meet regulatory requirements for electromagnetic compatibility and reduces the risk of product malfunction due to electromagnetic interference. Historically, this type of testing has evolved alongside the increasing complexity and sensitivity of electronic systems, becoming a standardized practice to guarantee operational integrity.