Communications – electrical: acoustic wave systems and devices – Borehole testing
Patent
1991-02-25
1993-06-01
Walsh, Donald P.
Communications, electrical: acoustic wave systems and devices
Borehole testing
376245, G21C 1700
Patent
active
052157059
ABSTRACT:
To measure fuel rod-centering forces exerted by double-acting springs assembled with different pairs of ferrules in a nuclear fuel bundle spacer, a gauge is provided to include an alignment rod and a probe carried by a handle for insertions into the ferrules of a ferrule pair. The alignment rod loads the side of the spring acting in its ferrule, while the other spring side exerts its fuel rod-centering force on a plunger mounted in the probe. The plunger is mechanically linked to a load cell which provides an electrical readout of the spring force.
REFERENCES:
patent: 4108719 (1978-08-01), Olshausen
patent: 4246783 (1981-01-01), Steven et al.
patent: 4668466 (1987-03-01), Rylatt
Butzin Donald F.
Gaylord, Jr. William B.
Peters William C.
Williams Robert K.
Chelliah Meena
General Electric Company
Schroeder Robert R.
Walsh Donald P.
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