Device for the remote measurement of the outside diameter of a c

Details Device for the remote measurement of the outside diameter of a c Device for the remote measurement of the outside diameter of a c

1987-04-01

1988-07-12

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

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

Optics

376245, 376259, 33178E, 33178R, 33502, G21C 1700

Patent

active

047568674

ABSTRACT:
The remote measurement device comprises a supporting structure (5) consisting of a plane annular base connected to the end of a handling pole of great length, and a movable measuring assembly carried by the base (5) and consisting of a stage (30) movable in all directions of the plane of the base coming to rest on the plate (3). The stage (30) is integral with a tubular sleeve (36) the axis of which is perpendicular to the plane of the stage (30), and the supporting structure (5) has a thrust assembly (18) abutting against the outer surface of the sleeve (36). A tracer (38) with a movable rod is mounted on the sleeve (36), with its rod (40) in a radial direction and pointed towards the interior of the sleeve (36). For measurement, the sleeve (36) is slipped onto the cylindrical element (4), and the thrust assembly (18) moves the sleeve (36) and the stage (30) forming the movable measuring assembly as a result of a radial thrust exerted on the sleeve (36) in a zone diametrically opposite the tracer (38). The position or movements of the rod (40) of the tracer (38) are measured.

REFERENCES:
patent: 3751812 (1973-08-01), Meyer
patent: 4126940 (1978-11-01), Lendi et al.
patent: 4197652 (1980-04-01), Qurnell et al.
patent: 4536960 (1985-08-01), Muti
patent: 4543725 (1985-10-01), Golinelli et al.
patent: 4675603 (1987-06-01), Rajakovics
patent: 4694585 (1987-09-01), Frizot et l.
Journal of Nuclear Materials, vol. 65, No. 1, 1977, pp. 307-312, Masson, "In-pile creep measuring rigs for metallic specimens".

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