Pipe organ air-coupled broad bandwidth transducer

B. Zhu; B. Tiller; J.F.C. Windmill; A.J. Mulholland; A.J. Walker

Pipe organ air-coupled broad bandwidth transducer

B. Zhu, B. Tiller, J.F.C. Windmill, A.J. Mulholland, A.J. Walker

Research output: Contribution to conference › Paper › peer-review

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Abstract

Air-coupled transducers are used to conduct fast non-contact inspections in NDT. Normally, the bandwidth of a conventional transducer can be enhanced, but with a cost to its sensitivity. However, low sensitivity is very disadvantageous in air-coupled devices. This paper presents a methodology for improving the bandwidth of an air-coupled micro-machined ultrasonic transducer (MUT) without sensitivity loss by connecting a number of resonating pipes of various length to a cavity in the backplate. The design is inspired by the pipe organ musical instrument, where the resonant frequency (pitch) of each pipe is mainly determined by its length.

Original language	English
Number of pages	4
Publication status	Published - 6 Sept 2017
Event	2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States Duration: 6 Sept 2017 → 9 Sept 2017 http://ewh.ieee.org/conf/ius/2017/

Conference

Conference	2017 IEEE International Ultrasonics Symposium, IUS 2017
Abbreviated title	IEEE IUS 2017
Country/Territory	United States
City	Washington
Period	6/09/17 → 9/09/17
Internet address	http://ewh.ieee.org/conf/ius/2017/

Keywords

air-coupled
broad bandwith
3D print
NDT/E
ultrasonic transducer
MUT

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Zhu-etal-IUS2017-Pipe-organ-air-coupled-broad-bandwidth-transducerAccepted author manuscript, 2.99 MB

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title = "Pipe organ air-coupled broad bandwidth transducer",

abstract = "Air-coupled transducers are used to conduct fast non-contact inspections in NDT. Normally, the bandwidth of a conventional transducer can be enhanced, but with a cost to its sensitivity. However, low sensitivity is very disadvantageous in air-coupled devices. This paper presents a methodology for improving the bandwidth of an air-coupled micro-machined ultrasonic transducer (MUT) without sensitivity loss by connecting a number of resonating pipes of various length to a cavity in the backplate. The design is inspired by the pipe organ musical instrument, where the resonant frequency (pitch) of each pipe is mainly determined by its length.",

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T1 - Pipe organ air-coupled broad bandwidth transducer

AU - Zhu, B.

AU - Tiller, B.

AU - Windmill, J.F.C.

AU - Mulholland, A.J.

AU - Walker, A.J.

N1 - © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

PY - 2017/9/6

Y1 - 2017/9/6

N2 - Air-coupled transducers are used to conduct fast non-contact inspections in NDT. Normally, the bandwidth of a conventional transducer can be enhanced, but with a cost to its sensitivity. However, low sensitivity is very disadvantageous in air-coupled devices. This paper presents a methodology for improving the bandwidth of an air-coupled micro-machined ultrasonic transducer (MUT) without sensitivity loss by connecting a number of resonating pipes of various length to a cavity in the backplate. The design is inspired by the pipe organ musical instrument, where the resonant frequency (pitch) of each pipe is mainly determined by its length.

AB - Air-coupled transducers are used to conduct fast non-contact inspections in NDT. Normally, the bandwidth of a conventional transducer can be enhanced, but with a cost to its sensitivity. However, low sensitivity is very disadvantageous in air-coupled devices. This paper presents a methodology for improving the bandwidth of an air-coupled micro-machined ultrasonic transducer (MUT) without sensitivity loss by connecting a number of resonating pipes of various length to a cavity in the backplate. The design is inspired by the pipe organ musical instrument, where the resonant frequency (pitch) of each pipe is mainly determined by its length.

KW - air-coupled

KW - broad bandwith

KW - 3D print

KW - NDT/E

KW - ultrasonic transducer

KW - MUT

UR - http://ewh.ieee.org/conf/ius/2017/

M3 - Paper

T2 - 2017 IEEE International Ultrasonics Symposium, IUS 2017

Y2 - 6 September 2017 through 9 September 2017

ER -

Pipe organ air-coupled broad bandwidth transducer

Abstract

Conference

Keywords

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