Detection of transient disturbing signals on PC boards

[摘要] This paper shows a possibility to visualize signal propagation in electroniccircuits. Instead of using various galvanic measurement points all over thecircuit, a test method is shown which measures the radiated field of theprinted circuit board. By use of a 2-dimensional positionable field probe itis possible to get an overview over the signals running on the differentparts of the PCB. In order to measure transient disturbing signals anddistinguish them from normal device operation, problems of probe design andtriggering need to be discussed.

[学科分类] 电子、光学、磁材料