Electricity: measuring and testing – Magnetic – Magnetic sensor within material
Patent
1989-06-14
1990-08-28
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Magnetic
Magnetic sensor within material
324226, G01N 2772, G01N 2782
Patent
active
049528750
ABSTRACT:
A device for eddy current testing of tubes of a heat exchanger having a U-shape tube bundle includes a test sensor having an insertion tip and a longitudinal axis. Elastic hose pieces are connected to the insertion tip. At least three coils are disposed along the elastic hose pieces. A pusher hose is connected to the elastic hose pieces. A pusher device is connected to the pusher hose for inserting the pusher hose into a tube of a tube bundle. The coils have contact surfaces each extending over only a portion of the inner periphery of the tube of the tube bundle. The coils are staggered about the circumference of the test sensor and are staggered along the longitudinal axis of the test sensor. A location recognition unit is disposed in the test sensor.
REFERENCES:
patent: 3100281 (1963-08-01), Spanner
patent: 3906358 (1975-09-01), Stone
patent: 3916302 (1975-10-01), Madewell
patent: 4303884 (1981-12-01), Malick
Patent Abstracts of Japan, vol. 7, No. 96 (P-193) [1241], Apr. 22, 1983; and JP-A-5822951 (Mitsubishi Jukogyo K.K.), Feb. 10, 1983; Thu Summary is Pertinent.
Adams Helmar
Boegelein Georg
Jacob Heinz
Eisenzopf Reinhard J.
Greenberg Laurence A.
Lerner Herbert L.
Siemens Aktiengesellschaft
Snow Walter E.
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