G - Physics – 01 – F
Patent
G - Physics
01
F
340/88, 340/95
G01F 23/18 (2006.01) G01F 23/00 (2006.01) G01S 7/00 (2006.01)
Patent
CA 1121482
TRANSPONDER SYSTEM INCLUDING AN OSCILLATOR RIPPLE COUNTER CONTROLLING A CODED ANALOG MULTIPLEX NETWORK IN A CIRCUIT WITH A DRIVER/GATE CIRCUIT FOR GENERATING "RED-ALERT" END CONDITION DIGITAL SIGNALS IN A STORAGE TANK GAUGING SYSTEM ABSTRACT OF THE DISCLOSURE A "red-alert" end condition digital signal is generated by a transponder system of the present invention formed essentially of MSI's (Medium Scale Integrated Chips) including an oscillator/ripple counter controlling a coded analog multiplexer network in circuit with a RTL compatible gate/driver circuit. The aforementioned system both is initiated by and is in power dependent relationship with a MARK-SPACE interrogation signal and has special utility in digitally monitoring product "overflow" conditions in source/ product storage tank networks associated with an oil refinery and/or a chemical complex.
316773
Chevron Research And Technology Company
Sim & Mcburney
LandOfFree
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