Electricity: measuring and testing – Electromechanical switching device – Relay
Patent
1981-11-04
1984-08-07
Tokar, Michael J.
Electricity: measuring and testing
Electromechanical switching device
Relay
324 73AT, 324423, 324424, G01R 3160
Patent
active
044646283
ABSTRACT:
In a relay tester, analog signals to be supplied to a relay under test are processed with digital circuits so that the concerned frequency, phase, voltage and current are set and adjusted with high frequency.
REFERENCES:
patent: 3379898 (1964-10-01), Adler et al.
patent: 3956623 (1976-05-01), Clark et al.
patent: 4177419 (1979-12-01), Fiorentzis
patent: 4386430 (1983-05-01), Treiber
Kelley B. J.
Mitsubishi Denki & Kabushiki Kaisha
Tokar Michael J.
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