Technique for monitoring the operational integrity of remote ana

Details Technique for monitoring the operational integrity of remote ana Technique for monitoring the operational integrity of remote ana

1975-02-07

1976-11-09

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

340214, G01R 3102, G08B 2900

Patent

active

039913627

ABSTRACT:
Tamper test signals of varying magnitude and polarity are randomly applied to electronic sensing circuits to determine integrity of the sensing circuits. A monitoring circuit measures the response of the sensing circuit to the applied tamper test signals and responds to deviations from predetermined information indicative of sensing circuit integrity by generating output signals suitable for control or alarm purposes.

REFERENCES:
patent: 3031643 (1962-04-01), Sheftelman
patent: 3517306 (1970-06-01), Anderson et al.
patent: 3614608 (1971-10-01), Giedd et al.
patent: 3636443 (1972-01-01), Singh et al.
patent: 3678379 (1972-07-01), Arvay et al.
patent: 3705349 (1972-12-01), Arnold
patent: 3716783 (1973-02-01), Deering
B394,712, Jan. 1975, Patti, 324/73 R.

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