Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1980-08-11
1982-07-06
Krawczewicz, Stanley T.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
324 71R, G01R 2702
Patent
active
043385630
ABSTRACT:
An electrical resistance type corrosion measuring probe has a test element exposed to a corrosive environment and an adjacent reference element protected from the environment. Electrical circuitry is connected to the elements for measurement of resistance ratio. This provides a corrosion output signal having a first order of temperature correction provided by the reference element. Secondary temperature compensation for dynamic or short term variation of temperature of the corrosive environment is provided by thermocouple measurement of temperatures of the test and reference elements and compensating the corrosion signal in accordance with the directly measured short term temperature difference of the elements.
REFERENCES:
patent: 2565230 (1951-08-01), Hebler
patent: 2664543 (1953-12-01), Thayer
patent: 2956225 (1960-10-01), Marsh et al.
patent: 3042863 (1962-07-01), Marsh et al.
patent: 3060728 (1962-10-01), Wolber
patent: 3102979 (1963-09-01), Schaschl
patent: 3104355 (1963-09-01), Holmes et al.
patent: 3108242 (1963-10-01), Scott, Jr.
patent: 3124771 (1964-03-01), Rohrback
patent: 3148348 (1960-09-01), Rohrback
patent: 3153217 (1964-10-01), Cramer et al.
patent: 3155933 (1964-11-01), Rohrback et al.
patent: 3155934 (1964-11-01), Messick et al.
patent: 3264561 (1966-08-01), Gustafson
patent: 3307401 (1967-03-01), Bachman
patent: 3331021 (1967-07-01), Marsh et al.
patent: 3358229 (1967-12-01), Collins
patent: 3497803 (1970-02-01), Fegan, Jr.
patent: 3609549 (1971-09-01), Hausler
patent: 3731187 (1973-05-01), Hausler
patent: 3821642 (1974-06-01), Seymour
patent: 3854087 (1974-12-01), Frenck
patent: 3857094 (1974-12-01), Caldecourt
patent: 3936737 (1976-02-01), Jeffries, Sr.
patent: 4019133 (1977-04-01), Manley
patent: 4138878 (1979-02-01), Holmes
patent: 4147513 (1979-04-01), Bienkowski
patent: 4217544 (1980-08-01), Schmidt
Geer James L.
Rhoades Rex V.
Krawczewicz Stanley T.
Rohrback Corporation
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