Motorized X-ray tube assembly

Details Motorized X-ray tube assembly Motorized X-ray tube assembly

1977-10-25

1979-03-20

Church, Craig E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250402, 250491, 250523, G01N 2134, G01N 2304

Patent

active

041456130

ABSTRACT:
A motorized device for rotating i.e. tilting the X-ray tube assembly in a linear and/or complex tomography radiographic system comprising the combination of a permanent magnet stepper motor coupled to a rotatable X-ray tube assembly through a helicon gear set and a spur gear set. The X-ray tube assembly incrementally rotates one angular step with each input drive pulse applied to the stepper motor from a pulse generator operated in accordance with a control input applied from an electronic control system in response to sensed positional change of the X-ray tube assembly. The stepper motor when unenergized is nevertheless adapted to provide a holding torque capability which eliminates the need for a separate brake assembly.

REFERENCES:
patent: 3708664 (1973-01-01), Bock et al.
patent: 3733487 (1973-05-01), Louche et al.

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