Communications: electrical – Digital comparator systems
Patent
1976-10-18
1977-12-20
Caldwell, Sr., John W.
Communications: electrical
Digital comparator systems
73362R, 336110, 336132, G08C 1906
Patent
active
040644979
ABSTRACT:
Sensors, or transducers, which utilize elongated magnetically saturable tubes with sense lines that run through the tubes for simultaneous sensing of a plurality of parameters are disclosed. One version involves a single sensing element which has a first pair of diametrically disposed magnetic poles responsive to one condition that is positioned adjacent to one end of the tube and a second pair of diametrically disposed magnets responsive to another condition that is positioned adjacent to the other end of the tube. Another version involves two elements which have temperature vs. inductance characteristics which intersect, and a pair of diametrically disposed magnets responsive to another condition positioned adjacent the two elements.
REFERENCES:
patent: 3305770 (1967-02-01), Hulls
patent: 3950993 (1976-04-01), Sidor
patent: 3958202 (1976-05-01), Sidor
patent: 3958203 (1976-05-01), Bernin
Bowen Glenn W.
Camillo Charles C.
Sidor Edward F.
Beart Robert W.
Bowen Glenn W.
Caldwell Sr. John W.
Groody James J.
Illinois Tool Works Inc.
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