Coil & Transformer Automatic Test Equipment (ATE) System

This paper describes the ATE System, which includes a microprocessor and is used for measuring the properties of coils and transformers. To accurately test D. U. T. with many specifications, the ATE System provides the following hardware test technologies: (1) The turn ratio measurement method, which is relatively unaffected by the transformer coupling coefficient. (2) The scanner bus line configuration, which achieved a 3-kV AC dielectric strength and 10⁵-megohm insulation. (3) The winding polarity measurement method, which is relatively unaffected by transformer leakage inductance. The ATE System also provides software tests. This paper reports on the following software technologies: (1) The results of using CP/M as the operating system. (2) Using the menu system for easing operation.