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Automating Surge Current Measurement Disclosure Number: IPCOM000060831D
Original Publication Date: 1986-May-01
Included in the Prior Art Database: 2005-Mar-09

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Schirmer, EC [+details]


Measurement of electrical surge currents is automated using unattended synchronization of an oscilloscope external single sweep with an external device, such as a relay, and the programmability feature of the scope. One-shot turn-on waveforms are captured on a repetitive unattended basis and the worst case displayed. The measurement of electrical surge currents is sometimes done in laboratories using a totally attended process which, in short, involves having an operator turning on and off the piece of equipment under testing to be able to capture the current waveform on an oscilloscope. The process has to be repeated many times until the operator is reasonably sure that the highest surge current has been found. In effect, the process is lengthy and inefficient.