Eriksson, Tobias ; Ramadas, Nishal ; Unger, Alexander ; Hoffmann, Maik ; Kupnik, Mario ; Dixon, Steve (2015)
Flexural Transducer Arrays for Industrial Non-Contact Applications.
IEEE IUS 2015. Taipei, Taiwan (21.10.2015-24.10.2015)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
A new method of constructing robust air-coupled flexural ultrasound arrays is suggested, and results from a prototype transducer are presented. The flexural elements are defined on a single sheet of metal by bonding a baffle structure to the back of the sheet. Piezoelectric elements were attached directly to the metal plate in the centre of the holes in the baffle. The aim was to find if the baffle could sufficiently separate the elements, such that each element behaved like a flexural transducer with radius equal to the radius of the holes in the baffle. By measuring the front face displacement of the array the vibration mode of individual elements could be characterised and compared to those of a single element transducer. In general the baffle sufficiently separated the flexural elements, such that the vibration modes observed corresponded to those of an edge clamped plate with a radius 1.5 mm larger than that of the holes in the baffle. This is a small shift, which is explained by the outer boundary being less well defined for the array elements, compared to a single element flexural transducer.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2015 |
| Autor(en): | Eriksson, Tobias ; Ramadas, Nishal ; Unger, Alexander ; Hoffmann, Maik ; Kupnik, Mario ; Dixon, Steve |
| Art des Eintrags: | Bibliographie |
| Titel: | Flexural Transducer Arrays for Industrial Non-Contact Applications |
| Sprache: | Englisch |
| Publikationsjahr: | 21 Oktober 2015 |
| Veranstaltungstitel: | IEEE IUS 2015 |
| Veranstaltungsort: | Taipei, Taiwan |
| Veranstaltungsdatum: | 21.10.2015-24.10.2015 |
| Kurzbeschreibung (Abstract): | A new method of constructing robust air-coupled flexural ultrasound arrays is suggested, and results from a prototype transducer are presented. The flexural elements are defined on a single sheet of metal by bonding a baffle structure to the back of the sheet. Piezoelectric elements were attached directly to the metal plate in the centre of the holes in the baffle. The aim was to find if the baffle could sufficiently separate the elements, such that each element behaved like a flexural transducer with radius equal to the radius of the holes in the baffle. By measuring the front face displacement of the array the vibration mode of individual elements could be characterised and compared to those of a single element transducer. In general the baffle sufficiently separated the flexural elements, such that the vibration modes observed corresponded to those of an edge clamped plate with a radius 1.5 mm larger than that of the holes in the baffle. This is a small shift, which is explained by the outer boundary being less well defined for the array elements, compared to a single element flexural transducer. |
| Freie Schlagworte: | Flexual Transducer Array, Ultrasound, PZT5H |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Elektromechanische Konstruktionen (aufgelöst 18.12.2018) 18 Fachbereich Elektrotechnik und Informationstechnik > Mess- und Sensortechnik 18 Fachbereich Elektrotechnik und Informationstechnik |
| Hinterlegungsdatum: | 04 Nov 2015 13:55 |
| Letzte Änderung: | 04 Nov 2015 14:06 |
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