ULTRASONIC TRANSDUCER AND MANUFACTURING METHOD THEREFOR

An ultrasonic transducer and a manufacturing method therefor are disclosed. The ultrasonic transducer, according to one embodiment of the present invention, comprises: an ultrasonic transducer body generating ultrasonic waves by using an active element to externally irradiate the ultrasonic waves th...

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Main Authors SON, KEON-HO, BAE, BYUNG-KUK
Format Patent
LanguageEnglish
French
Korean
Published 14.05.2015
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Abstract An ultrasonic transducer and a manufacturing method therefor are disclosed. The ultrasonic transducer, according to one embodiment of the present invention, comprises: an ultrasonic transducer body generating ultrasonic waves by using an active element to externally irradiate the ultrasonic waves through a lens part, and receiving reflected waves of the externally irradiated ultrasonic waves to convert the reflected waves into electrical signals; and a backing block joined to the opposite side of at least the lens part of the ultrasonic transducer body so as to attenuate the ultrasonic waves. According to one embodiment of the present invention, a backing material of the backing block is composed of a damping grease mixture. The damping grease mixture can be a material in which metal powder is mixed as a filler by using the damping grease as a dispersion medium. For example, the damping grease can be a mixture in which polytetrafluoroethylene (PTFE) is mixed as a viscosity increasing agent. The metal powder can contain at least one of tungsten (W), manganese (Mn), lead (Pb), and zinc oxide (ZnO). La présente invention concerne un transducteur ultrasonore et son procédé de fabrication. Le transducteur ultrasonore, selon un mode de réalisation de la présente invention, comprend : un corps de transducteur ultrasonore générant des ondes ultrasonores par utilisation d'un élément actif pour émettre de manière externe les ondes ultrasonores à travers une partie lentille, et recevant des ondes réfléchies des ondes ultrasonores émises de manière externe pour convertir les ondes réfléchies en signaux électriques ; et un bloc de support assemblé au côté opposé d'au moins la partie lentille du corps de transducteur ultrasonore de façon à atténuer les ondes ultrasonores. Selon un mode de réalisation de la présente invention, un matériau de support du bloc de support est composé d'un mélange de graisse d'amortissement. Le mélange de graisse d'amortissement peut être un matériau dans lequel de la poudre métallique est mélangée en tant que charge par utilisation de la graisse d'amortissement en tant que milieu de dispersion. Par exemple, la graisse d'amortissement peut être un mélange dans lequel du polytétrafluoroéthylène (PTFE) est mélangé en tant qu'agent augmentant la viscosité. La poudre métallique peut contenir au moins l'un parmi du tungstène (W), du manganèse (Mn), du plomb (Pb) et de l'oxyde de zinc (ZnO). 초음파 트랜스듀서 및 그 제조 방법이 개시된다. 본 발명의 일 실시예에 따른 초음파 트랜스듀서는 능동 소자를 이용하여 초음파를 발생시켜서 렌즈부를 통해 외부로 조사(照射)하고 또한 외부로 조사된 초음파의 반사파를 수신하여 전기적 신호로 변환하기 위한 초음파 트랜스듀서 몸체와 이 초음파 트랜스듀서 몸체의 적어도 렌즈부의 반대쪽에 접합되어서 초음파를 감쇠시키기 위한 배킹 블록을 포함한다. 본 발명의 실시예에 의하면, 이 배킹 블록의 배킹재는 댐핑 그리스 혼합물로 이루어진다. 댐핑 그리스 혼합물은 댐핑 그리스를 분산매로 하여 금속 분말이 필러로 혼합되어 있는 물질일 수 있다. 일례로, 댐핑 그리스는 폴리알파올레핀에 폴리테트라플로로에틸렌(PolyTetraFluoroEthylene, PTFE)이 점증제로 혼합된 혼합물일 수 있다. 그리고 금속 분말은 텅스텐(W), 망간(Mn), 납(Pb) 및 산화 아연(ZnO) 중에서 적어도 하나를 포함할 수 있다.
AbstractList An ultrasonic transducer and a manufacturing method therefor are disclosed. The ultrasonic transducer, according to one embodiment of the present invention, comprises: an ultrasonic transducer body generating ultrasonic waves by using an active element to externally irradiate the ultrasonic waves through a lens part, and receiving reflected waves of the externally irradiated ultrasonic waves to convert the reflected waves into electrical signals; and a backing block joined to the opposite side of at least the lens part of the ultrasonic transducer body so as to attenuate the ultrasonic waves. According to one embodiment of the present invention, a backing material of the backing block is composed of a damping grease mixture. The damping grease mixture can be a material in which metal powder is mixed as a filler by using the damping grease as a dispersion medium. For example, the damping grease can be a mixture in which polytetrafluoroethylene (PTFE) is mixed as a viscosity increasing agent. The metal powder can contain at least one of tungsten (W), manganese (Mn), lead (Pb), and zinc oxide (ZnO). La présente invention concerne un transducteur ultrasonore et son procédé de fabrication. Le transducteur ultrasonore, selon un mode de réalisation de la présente invention, comprend : un corps de transducteur ultrasonore générant des ondes ultrasonores par utilisation d'un élément actif pour émettre de manière externe les ondes ultrasonores à travers une partie lentille, et recevant des ondes réfléchies des ondes ultrasonores émises de manière externe pour convertir les ondes réfléchies en signaux électriques ; et un bloc de support assemblé au côté opposé d'au moins la partie lentille du corps de transducteur ultrasonore de façon à atténuer les ondes ultrasonores. Selon un mode de réalisation de la présente invention, un matériau de support du bloc de support est composé d'un mélange de graisse d'amortissement. Le mélange de graisse d'amortissement peut être un matériau dans lequel de la poudre métallique est mélangée en tant que charge par utilisation de la graisse d'amortissement en tant que milieu de dispersion. Par exemple, la graisse d'amortissement peut être un mélange dans lequel du polytétrafluoroéthylène (PTFE) est mélangé en tant qu'agent augmentant la viscosité. La poudre métallique peut contenir au moins l'un parmi du tungstène (W), du manganèse (Mn), du plomb (Pb) et de l'oxyde de zinc (ZnO). 초음파 트랜스듀서 및 그 제조 방법이 개시된다. 본 발명의 일 실시예에 따른 초음파 트랜스듀서는 능동 소자를 이용하여 초음파를 발생시켜서 렌즈부를 통해 외부로 조사(照射)하고 또한 외부로 조사된 초음파의 반사파를 수신하여 전기적 신호로 변환하기 위한 초음파 트랜스듀서 몸체와 이 초음파 트랜스듀서 몸체의 적어도 렌즈부의 반대쪽에 접합되어서 초음파를 감쇠시키기 위한 배킹 블록을 포함한다. 본 발명의 실시예에 의하면, 이 배킹 블록의 배킹재는 댐핑 그리스 혼합물로 이루어진다. 댐핑 그리스 혼합물은 댐핑 그리스를 분산매로 하여 금속 분말이 필러로 혼합되어 있는 물질일 수 있다. 일례로, 댐핑 그리스는 폴리알파올레핀에 폴리테트라플로로에틸렌(PolyTetraFluoroEthylene, PTFE)이 점증제로 혼합된 혼합물일 수 있다. 그리고 금속 분말은 텅스텐(W), 망간(Mn), 납(Pb) 및 산화 아연(ZnO) 중에서 적어도 하나를 포함할 수 있다.
Author SON, KEON-HO
BAE, BYUNG-KUK
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DocumentTitleAlternate TRANSDUCTEUR ULTRASONORE ET SON PROCÉDÉ DE FABRICATION
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Snippet An ultrasonic transducer and a manufacturing method therefor are disclosed. The ultrasonic transducer, according to one embodiment of the present invention,...
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SubjectTerms DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
Title ULTRASONIC TRANSDUCER AND MANUFACTURING METHOD THEREFOR
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