REAL-TIME STERO-MICRORADIOGRAPHY

A REAL-TIME STEREO MICRORADIOGRAPHIC INSPECTION SYSTEM IS PROPOSED WITH PARTICULAR EMPHASIS ON THE INSPECTION OF CERAMICS. THE PERFORMANCE OF CERAMIC COMPONENTS REQUIRES THAT SMALL DISCONTINUITIES BE DETECTED AND EVALUATED. MICRORADIOGRAPHY BY PROJECTION MAGNIFICATION OFFERS THE PROMISE OF DETECTING SMALL DISCONTINUITIES IN A PRACTICAL INSPECTION SYSTEM. IMAGE MAGNIFICATIONS OF 100X OR MORE MAKE IT POSSIBLE TO DETECT DISCONTINUITIES IN THE 20 TO 50 MICROMETER SIZE RANGE. THIS CAN BE DONE WITH REAL-TIME DETECTORS THEREBY OFFERING THE POSSIBILITY FOR A FAST SCANNING INSPECTION. WHEN INDICATIONS ARE FOUND, A STEREO IMAGING SYSTEM WILL PROVIDE MUCH CHARACTERIZATION INFORMATION IN TERMS OF SIZE, SHAPE, LOCATION AND TYPE. WE PROPOSE TO DEVELOP THIS CAPABILITY AND DEMONSTRATE ITS EFFECTIVENESS FOR THE INSPECTION OF CERAMICS. THE DEMONSTRATION OF THE STEREO CAPABILITY WILL INVOLVE RECORDING AND PROCESSING OF TELEVISION IMAGES. IT WILL ALSO PROVIDE MOTION CAPABILITY TO AID IN INTERPRETATION AND STEREO VIEWING.