Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-12-10
1977-05-03
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 585A, 315248, 315267, G01R 31024
Patent
active
040217272
ABSTRACT:
A central portion of the lamp is ionized by a RF field applied between two auxiliary electrodes and the strength of the RF signal resulting between the terminal electrodes of the lamp is measured as an indication of the fill gas pressure.
REFERENCES:
patent: 3742281 (1973-06-01), McInally
Berka George B.
North American Philips Corporation
Rolinec Rudolph V.
Tokar Michael J.
Trifari Frank R.
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