Abstract: A noncontact sensor detects the signal waveform of analog and digital signals transmitted individually and, alternately, in combination, in designated transmission frequency bands on a pair of conductors.
Type:
Grant
Filed:
March 28, 2000
Date of Patent:
June 25, 2002
Assignee:
Sensor Technologies, Inc.
Inventors:
Philip Douglas, Alan G. Johnson, Brent Beamer
Abstract: A continuous plasma ignition system includes an exciter 12, an ignitor plug 16 and a cable 18 which connects the excitor 12 to the ignitor plug 16. The ignition system operates at the resonant frequency value f.sub.r of the circuit formed by the exciter, ignitor plug and the cable, such that, a continuously plasma 23 of ionized air is provided across the ignitor gap 22.