System fault detection in electrostatic flow diagnostics

Details System fault detection in electrostatic flow diagnostics System fault detection in electrostatic flow diagnostics

1982-12-28

1986-05-06

Gruber, Felix D.

Boots, shoes, and leggings

364507, 371 20, 371 28, G08B 2900, F02C 732

Patent

active

045876142

ABSTRACT:
Diagnostic apparatus which analyzes the waveforms (FIGS. 57-80) of signals provided by electrostatic probes (1, 2, 3) is declared to have a system fault in the event that signals appear on two out of three probes simultaneously. In one embodiment (FIG. 14) the sample number of the digital value which crosses threshold is compared between two adjacent probes. In another embodiment (FIGS. 15-18) default is declared if the signals appear in an approximate time slot (T=1, T=2, T=3).

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patent: 4418388 (1983-11-01), Allgor et al.
patent: 4456883 (1984-06-01), Bullis et al.

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