Device for measuring nuclear reactor fuel assembly grids

Details Device for measuring nuclear reactor fuel assembly grids Device for measuring nuclear reactor fuel assembly grids

1987-11-20

1990-01-09

Wasil, Daniel

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Position detection

73628, G21C 1706

Patent

active

048927015

ABSTRACT:
A device for measuring and remotely checking external dimensions of an external lateral face of a part of a work piece. The device comprises measuring means for measuring the length of the part and including a set of two ultrasonic transducers arranged to transmit and receive ultrasound pulses, a movable support for supporting the transducers, abutting means, first rotation means for rotating the supporting means about an axis parallel to the longitudinal axis of the workpiece, and second rotation means for rotating the supporting means between an initial position where the two transducers are substantially directed along a line perpendicular to the longitudinal axis of the workpiece and two predetermined angular positions symmetrical with respect to the initial position, and means for rectilinearly displacing the movable support for bringing the movable support into and out abutting contact with the lateral face to be measured.

REFERENCES:
patent: 4190961 (1980-03-01), James et al.
patent: 4274205 (1981-06-01), Starr et al.
patent: 4368644 (1983-01-01), Wentzell et al.
patent: 4605531 (1986-08-01), Leseur et al.
patent: 4637912 (1987-01-01), Scharpenberg et al.
patent: 4649650 (1987-03-01), Fink et al.
patent: 4745410 (1988-05-01), Schuller et al.
patent: 4777011 (1988-10-01), Scharpenberg

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