G - Physics – 21 – C
Patent
G - Physics
21
C
359/19
G21C 17/00 (2006.01) G01B 17/00 (2006.01) G01D 18/00 (2006.01) G01N 29/30 (2006.01)
Patent
CA 1096057
ABSTRACT OF THE DISCLOSURE Calibration apparatus for verifying the position and orientation of transducers used in nuclear reactor vesse; inspection apparatus is disclosed. A tank, filled with water, the operating inspection medium, is fitted with a movable mounting assembly adapted to securely accommodate a transducer and the mounting assembly ion which it is normally secured during an inspection procedure. The tank is also provided with a slidably mounted target positioned therein at a predetermined distance from the target which is selected to avoid the distortion effects in the near field of the transducer response. The calibration apparatus can be used to check the normal transducer mounting for either perpen- dicularity or angular orientation by moving the tank's mounting assembly via a lead screw with which it is thread- ingly engaged. -1-
303124
Mcconnell And Fox
Westinghouse Electric Corporation
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