비의류제품

visual inspection system for evaluating the interior surface of valve stems on material storage container tops

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 524
a nondestructive inspection for evaluating the interior surface of the small diameter valve stems on material storage container tops was mandated. the specifications required that the interior surface of the valve stem have a surface finish of (number sign)16 or better conventional methods which utilizes mechanical ''stylus-type''surface analyzing equipment could not extend into the narrow 0.312 inch diameter by 1.5 inch deep hole (of the valve stem). a visual inspection system which exploits the capabilities of a high resolution fiberoptic borescope was designed and assembled to resolve this requirement. this paper discusses the design and inspection features of the aforementioned system and includes several illustrations of inspection results. 6 figs
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