Pipe organ air-coupled broad bandwidth transducer

Botong Zhu; B. Tiller; James Windmill; Anthony Mulholland; A.J. Walker

Pipe organ air-coupled broad bandwidth transducer

Botong Zhu, B. Tiller, James Windmill, Anthony Mulholland, A.J. Walker

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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
Title of host publication	IEEE International Ultrasonics Symposium, Washington, United States, 6/09/17
Publication status	Published - 6 Sep 2017

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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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AU - Zhu, Botong

AU - Tiller, B.

AU - Windmill, James

AU - Mulholland, Anthony

AU - Walker, A.J.

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.

UR - https://pureportal-staging.strath.ac.uk/en/publications/9a70e05c-2dfd-43d8-a401-80580e6df7d0

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BT - IEEE International Ultrasonics Symposium, Washington, United States, 6/09/17

ER -