Displacement probe for cryogenic magnet

Details Displacement probe for cryogenic magnet Displacement probe for cryogenic magnet

1990-04-30

1992-07-21

Raevis, Robert

Measuring and testing

Probe or probe mounting

G01D 2100

Patent

active

051312840

ABSTRACT:
A probe for measuring the displacement between the outer supporting wall of a cryostat and the inner magnet coil form employs magnetically balanced strain gauges attached to a beam with one end fixed to the cryostat wall and the other end held by the magnet coil form. The magnetically balanced strain gauges comprise two superimposed strain gauges with countervailing current flow. In one embodiment, two sets of gauges are attached in conventional bridge arrangement to provide temperature compensation.

REFERENCES:
patent: 2414161 (1947-01-01), Moore
patent: 3064221 (1962-11-01), King
patent: 3240055 (1966-03-01), Eddens
patent: 4721934 (1988-01-01), Stacy
Catalogue page, "Strain Gages for Use in Intense Magnetic Field Environments" p. 73.
Measurement Systems, Application and Design, Ernest O. Doebelin, pp. 231-233.

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