Self monitoring intruder detecting system of noise-cancelling vi

Details Self monitoring intruder detecting system of noise-cancelling vi Self monitoring intruder detecting system of noise-cancelling vi

1982-08-02

1985-08-20

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

181122, 367 93, G08B 1310

Patent

active

045367531

ABSTRACT:
A ferrite transformer is coupled between a two-wire array of geophones or other suitable vibration detectors (such as hydrophones). An oscillator is coupled across the secondary of the transformer in order to provide a carrier on which the output of the array may be modulated. A low level leakage current appears in the array so that a continuity test may be conducted to monitor the line for opens and shorts and to detect the operativeness of system components. The modulated output of the transformer is connected to a signal processing system.

REFERENCES:
patent: 3806909 (1974-04-01), Bound
patent: 4107660 (1978-08-01), Chleboun
patent: 4374378 (1983-02-01), Lee

Affiliated with

Also associated with

Rating

Self monitoring intruder detecting system of noise-cancelling vi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self monitoring intruder detecting system of noise-cancelling vi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self monitoring intruder detecting system of noise-cancelling vi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-563371