Process control plant comprising processing of signals

Details Process control plant comprising processing of signals Process control plant comprising processing of signals

1977-10-03

1980-04-29

Waring, Alvin H.

Communications: electrical

Condition responsive indicating system

With particular system function

340501, 176 19R, 176 24, G21C 1700

Patent

active

042008646

ABSTRACT:
A process control installation has means for sensing a plurality of physical conditions connected to means for comparing the condition to a reference. A differential signal is fed to a corresponding reproduction circuit which in turn feeds it to inputs of a plurality of majority decision circuits. The majority decision circuits are in turn connected to pairs of logic circuit trains which in turn are connected to other logic circuitry for intrinsic security.

REFERENCES:
patent: 3424652 (1969-01-01), Oehmann
"Nuclear Safety"; by Jacobs; vol. 6, No. 3, 1965; pp. 242-245.
"AEG Mitteilongen"; by Andrich et al., vol. 56, No. 2; 1966, pp. 149;14 151, Eliter-Verlag, Berlin.

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