飞机点火火花电流的测试

system is designed to measure the spark current in airplane’s igniter. The measuring system is based on Hall current transducer. Instruments such as shunt, transformer, Rogowski coil are compared. The measuring system based on Hall transducer responds quickly and it is easy to measure. The system is also wide band and high definition. The non-contact and automated measuring fast and high current is achieved. Electromagnetic interference and grounding problems are resolved especially. Exact data and waveforms of spark current are gained. The method of correlation analysis is introduced to analyze the repeatability of the measurement results.