Load survey recorder for measuring electrical parameters

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

G - Physics

01

D

340/163

G01D 15/12 (2006.01) G01D 9/28 (2006.01) G01R 13/04 (2006.01) G11B 5/00 (2006.01)

Patent

CA 1119692

LOAD SURVEY RECORDER FOR MEASURING ELECTRICAL PARAMETERS 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 photo- transistor 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.

190986

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