Servo control for X-ray tomography

Details Servo control for X-ray tomography Servo control for X-ray tomography

1978-05-12

1980-07-15

Church, Craig E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250402, H05G 100

Patent

active

042130506

ABSTRACT:
Apparatus for plan-parallel tomography comprises an X-ray tube and detector which are mechanically connected to each other by means of an extendable column consisting of two portions. Linear movement of the X-ray tube is obtained by sliding the two portions during the swiveling of the column. The use of customary servo control arrangements for sliding in or out, however, involves a position error which is approximately proportional to the sliding speed of the column portions. This position error is eliminated by the adding of a correction signals which is proportional to the sliding speed into the servo control signal.

REFERENCES:
patent: 3733487 (1973-05-01), Louche

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