X-ray or gamma ray systems or devices – Specific application – Absorption
Patent
1991-07-08
1992-10-06
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Absorption
378 58, G01B 1506
Patent
active
051538997
ABSTRACT:
A portable tire x-ray apparatus includes a frame having motor driven rollers that support a tire vertically and cause the tire to rotate about a central axis thereof. A pair of pneumatically actuated spreader fingers spread the sidewalls of the tire as the tire is being rotated. An x-ray source and an x-ray image intensifier are mounted at either end of an arm and are spaced apart a distance which allows the x-ray source to irradiate selected sectors of the tire to create a fluoroscopic image of the selected sector on the x-ray image intensifier. The arm is connected to a support which is, in turn, connected to a motor drive and is pivotable to three preselected different positions. In one of the positions, one sidewall of the tire is examined, in the second position, the tread is examined, and in the third position, the opposite sidewall is examined. A video camera is optically coupled to the x-ray image intensifier and is connected to a VCR and a live monitor to convert the fluoroscopic image on the x-ray image intensifier to a video signal for display and recording. The VCR is also provided with a monitor so that recorded images of the tire can be played back simultaneously with live images for comparison. The tire rotation motor, the x-ray/image intensifier pivoting motor, the x-ray source, the x-ray image intensifier, and the video camera are remotely controllable from the safety of an x-ray protected compartment.
REFERENCES:
patent: 3826919 (1974-07-01), Yaroshub et al.
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