Size sensing x-ray cassette tray

Details Size sensing x-ray cassette tray Size sensing x-ray cassette tray

1988-04-28

1990-01-16

Church, Craig E.

X-ray or gamma ray systems or devices

Photographic detector support

For movable film or plate

378167, G03B 4202

Patent

active

048948543

ABSTRACT:
A size sensing X-ray cassette tray having a pair of longitudinally spaced opposing front and back cassette clamps linked together by a center pivoted arm and link members for unison movement. A side sensing arm is connected by an elongatable link member to a pivoted leg which is actuated by a probe of an X-ray system. Arcuate potentiometers are coupled to the pivoted arm and the side sensing arm so as to provide electric signals corresponding to the x and y dimensions of a mounted cassette. The potentiometers are nonlinear so as to provide respective cosine and sine correction and thereby make the output signals substantially linear with the dimensions of sensed cassettes.

REFERENCES:
patent: 3518435 (1967-11-01), Kok
patent: 3764808 (1973-10-01), Lackey et al.
patent: 3792283 (1974-02-01), Lebra
patent: 3826922 (1974-07-01), Ingles
patent: 3986034 (1976-10-01), Wittkopp et al.
patent: 4137460 (1979-01-01), Fitzsimmons et al.
patent: 4232227 (1980-11-01), Finkenzeller et al.
patent: 4416020 (1983-11-01), Wagner et al.

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