niconiconi on Nostr: Whoever invented this method must be a genius. This was a portable calibrator for ...
Whoever invented this method must be a genius. This was a portable calibrator for high-voltage partial discharge testing. Because of HV, it was battery powered and insulated from the mains. But sometimes the test signal needs to be phase-locked to the 50/60 Hz AC mains frequency, and the solution was:
> "with a photocell that synchronizes the instrument with the ambient lighting of the laboratory."
#electronics
Published at
2022-10-06 13:18:32 CESTEvent JSON
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