Load survey recorder for measuring electrical parameters

Details Load survey recorder for measuring electrical parameters Load survey recorder for measuring electrical parameters

1976-08-12

1984-09-11

Canney, Vincent P.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Recording

324157, 360 6, G01R 1304

Patent

active

RE0316687

ABSTRACT:
A survey recorder for measuring electrical loads and providing a magnetic tape record of data with time reference signals in format capable of providing computer compatible information. The data recording circuit utilizes a light emitting diode with a phototransistor to determine each quantum measurement by the meter, and a trigger circuit driven by the phototransistor feeds a solid state divider circuit which is programmable to provide various I/O pulse ratio outputs to the data recording head. A power outage circuit detects outages which are greater than a predetermined duration and provides distinctive pulses to a time recording circuit to effect a recognizable format on the magnetic tape which identifies the power outage.

REFERENCES:
patent: 3127594 (1964-03-01), Roe et al.
patent: 3148329 (1964-09-01), Lenahan
patent: 3401395 (1968-09-01), Neher
patent: 3500431 (1970-03-01), Baskin
patent: 3678484 (1972-07-01), Maxwell
patent: 3826982 (1974-07-01), McClelland

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