Positioning calibration apparatus for transducers employed in nu

Details Positioning calibration apparatus for transducers employed in nu Positioning calibration apparatus for transducers employed in nu

1977-06-10

1979-10-16

Ruehl, Charles A.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01N 2904

Patent

active

041708911

ABSTRACT:
Calibration apparatus for verifying the position and orientation of transducers used in nuclear reactor vessel 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 in 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 perpendicularity or angular orientation by moving the tank's mounting assembly via a lead screw with which it is threadingly engaged.

REFERENCES:
patent: 2394461 (1946-02-01), Mason
patent: 3280621 (1966-10-01), Cardinal et al.

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