翻訳と辞書 Words near each other ・ International Aerial Robotics Competition ・ International Aero Engines ・ International Aerobatic Club ・ International Aerospace Quality Group ・ Internal Revenue Code section 861 ・ Internal Revenue Manual ・ Internal Revenue Service ・ Internal Revenue Service (Ghana) ・ Internal Revenue Service Building ・ Internal Revenue Service Restructuring and Reform Act of 1998 ・ Internal Revolution ・ Internal Revolutionary Organization ・ Internal rhyme ・ Internal rhythm ・ Internal ribosome entry site ・ Internal rotary inspection system ・ Internal Salvation ・ Internal security ・ Internal Security Act ・ Internal Security Act (Singapore) ・ Internal Security Act 1960 ・ Internal Security Act, 1982 ・ Internal Security Corps ・ Internal Security Department (Brunei) ・ Internal Security Department (Singapore) ・ Internal Security Forces ・ Internal Security Operations Command ・ Internal Security Organisation ・ Internal Security Service ・ Internal Security Unit Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Internal rotary inspection system ： ウィキペディア英語版 Internal rotary inspection system Internal rotary inspection system (IRIS) is an ultrasonic method for the nondestructive testing of pipes and tubes. The IRIS probe is inserted into a tube that is flooded with water, and the probe is pulled out slowly as the data is displayed and recorded. The ultrasonic beam allows detection of metal loss from the inside and outside of the tube wall. ==Principle of operation== The IRIS probe consists of a rotating mirror that directs the ultrasonic beam into the tube wall. The mirror is driven by a small turbine that is rotated by the pressure of water being pumped in. As the probe is pulled the spinning motion of the mirror results in a helical scan path. One of the key settings in the procedure is to ensure that the ultrasonic pulse initiates in the very focus point at the center of the tube or pipe. An off-center pulse will show a distorted image of the tube due to the difference in the sound path for either side of the tube wall. For that reason there are centering devices that help the operator to keep the turbine centered at all times. The transducer utilized for the inspection has to be fast (frequency) enough to bounce back at both inner wall and outer wall. For the very smallest and thinnest tubes it is usually used a 25Mhz piezoelectric transducer. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Internal rotary inspection system」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.