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Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Çѱ¹Á¤º¸Åë½ÅÇÐȸ ³í¹®Áö (Journal of the Korea Institute of Information and Communication Engineering)
Current Result Document :
2
/ 2
ÀÌÀü°Ç
ÇѱÛÁ¦¸ñ(Korean Title)
°í¼º´É ÃÊÀ½ÆÄ °áÇÔŽ»ó±â¸¦ À§ÇÑ ¾ÐÀüº¯È¯±â
¿µ¹®Á¦¸ñ(English Title)
Piezoelectric Transducer for Ultrasonic Flaw Detector with High Performance
ÀúÀÚ(Author)
Á¤ÁØȯ
ÀüÈ£ÀÍ
±èÇö½Ä
°¼®±Ù
Jun Hwan Jung
Ho Ik Jun
Hyun-Sik Kim
Seog Geun Kang
¿ø¹®¼ö·Ïó(Citation)
VOL 17 NO. 07 PP. 1645 ~ 1652 (2013. 07)
Çѱ۳»¿ë
(Korean Abstract)
º» ³í¹®¿¡¼´Â ºñÆı«°Ë»ç¿ë °í¼º´É °áÇÔŽ»ó±â¸¦ À§ÇÑ ¾ÐÀüº¯È¯±â¸¦ ±¸ÇöÇÏ¿´´Ù. ¿©±â¼´Â ¾ÐÀüº¯Çü»ó¼ö¿Í Àü±â±â°è °áÇÕ°è¼ö µî°ú °°Àº ÁÖ¿ä Ư¼º¿¡ ´ëÇÑ ¼³°è ¸ñǥġ¸¦ ¸ÕÀú Á¤ÇÏ°í À¯ÇÑ¿ä¼ÒÇؼ®À» ÀÌ¿ëÇÏ¿© ¾òÀº µ¥ÀÌÅ͸¦ ¼³°è ¹× Á¦ÀÛ¿¡ È°¿ëÇÏ¿´´Ù. ½ÃÆíÀ» ÀÌ¿ëÇÑ ½ÇÇè °á°ú, Á¦ÀÛµÈ PZT ¼¼¶ó¹ÍÀº ¸ñǥġµéÀ» ¸Å¿ì Àß ¸¸Á·½ÃÅ°´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ÀÌ´Â °øÁø ÁÖÆļö¿¡¼ ¸Å¿ì Çâ»óµÈ ÀÓÇÇ´ø½º Ư¼º°ú ÃÊÀ½ÆÄ ¹ß»ý Ư¼ºÀ» °¡Áö´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ »õ·Î¿î ¾ÐÀüº¯È¯±â°¡ Àû¿ëµÈ ÃÊÀ½ÆÄ °áÇÔŽ»ó±â´Â ±âÁ¸ Ž»ó±âº¸´Ù Áõ°¡µÈ °áÇÔ °ËÃâÀ̵æÀ» Á¦°øÇÑ´Ù. µû¶ó¼ »õ·Î¿î °áÇÔŽ»ó±â´Â ÃÊÀ½Æĸ¦ ÀÌ¿ëÇÑ ºñÆı«°Ë»çÀÇ °Ë»ç ½Å·Ú¼º Çâ»ó¿¡ Å©°Ô ±â¿©ÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î »ç·áµÈ´Ù.
¿µ¹®³»¿ë
(English Abstract)
In this paper, a new piezoelectric transducer for high performance ultrasonic flaw detector used in non-destructive test (NDT) is implemented. Here, the goals for some major characteristics such as piezoelectric strain constant and electro-mechanical coupling factor are fixed in advanced. Then, the parameters obtained by finite element analysis (FEA) are exploited to design and implement the piezoelectric transducer. As a result of experiments using manufactured samples, it is proved that the new PZT ceramics satisfy the goals very well. It has much improved impedance characteristic at the resonant frequency and generation of ultrasonic signals. In addition, ultrasonic flaw detector with the new transducer provides increased flaw detecting gain than the conventional one. Thus, it is considered that the new flaw detector contributes significantly to improve reliability of the NDT.
Å°¿öµå(Keyword)
¾ÐÀüº¯È¯±â
¾ÐÀü ¼¾¼
ÃÊÀ½ÆÄ °áÇÔŽ»ó±â
ºñÆı«°Ë»ç
Piezoelectric transducer
Piezoelectric sensor
Ultrasonic flaw detector
Non-destructive test (NDT)
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