INTERNAL FORM OBSERVATION METHOD FOR HOLLOW ELASTIC BODY AND DEFORMATION TEST METHOD

摘要

PROBLEM TO BE SOLVED: To clearly observe the inside surface form of the hollow part of a nonmetallic hollow elastic body such as rubber or synthetic resin by providing the sectional image of the elastic body by use of a computer tomography utilizing non-biological physical characteristic. SOLUTION: An X-ray is projected from an X-ray tube 12 toward an elastic body 18 by an X-ray generating unit 22, and a rotary frame 12 is rotated. The X-ray multidirectionally projected to the elastic body 18 and transmitted by the elastic body 18 is detected as X-ray intensity signal by an X-ray detector 16, and the detection signal is digitized and transferred to a CPU 20. In the CPU 20, a calculation is performed according to an algorithm such as reverse projection and sucessive approximation according to a preset program to reconfigure the image from the resulting multidirectional X-ray transmission data, and the image data is stored in an external memory device 24 using a magnetic memory medium. As occasion demands, the data is displayed as the sectional image of the elastic body 18 so as to be visually confirmable by an external display device 26 such as CRT.