Abstract
ESD (electrostatic discharge) events are a source of radio waves. Time delay information from a system of antennas detecting those radio waves can be used, much like a GPS (global positioning satellite) system, to pinpoint the location of the discharge. In this system, numerical analysis is used to successively approximate the location in space at which an emitted electromagnetic signal would match the set of arrival time delays as measured at each antenna. Sensitivity to 100 V discharges and good correlation to known discharge locations has been achieved. Such a system is described and experimental results are presented in this paper. Limitations due to measurement errors and blocked antennas are also presented.
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