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 conferencePaper

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.

Conference

ConferenceIEEE International Ultrasonics Symposium
Abbreviated titleIEEE IUS 2017
CountryUnited States
CityWashington
Period6/09/179/09/17
Internet address

Fingerprint

Transducers
Pipe
Organs (musical instruments)
Bandwidth
Air
Musical instruments
Ultrasonic transducers
Nondestructive examination
Natural frequencies
Inspection
Costs

Keywords

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

Cite this

Zhu, B., Tiller, B., Windmill, J. F. C., Mulholland, A. J., & Walker, A. J. (2017). Pipe organ air-coupled broad bandwidth transducer. Paper presented at IEEE International Ultrasonics Symposium, Washington, United States.
Zhu, B. ; Tiller, B. ; Windmill, J.F.C. ; Mulholland, A.J. ; Walker, A.J. / Pipe organ air-coupled broad bandwidth transducer. Paper presented at IEEE International Ultrasonics Symposium, Washington, United States.4 p.
@conference{9a70e05c2dfd43d8a40180580e6df7d0,
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.",
keywords = "air-coupled, broad bandwith, 3D print, NDT/E, ultrasonic transducer, MUT",
author = "B. Zhu and B. Tiller and J.F.C. Windmill and A.J. Mulholland and A.J. Walker",
note = "{\circledC} 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.; IEEE International Ultrasonics Symposium, IEEE IUS 2017 ; Conference date: 06-09-2017 Through 09-09-2017",
year = "2017",
month = "9",
day = "6",
language = "English",
url = "http://ewh.ieee.org/conf/ius/2017/",

}

Zhu, B, Tiller, B, Windmill, JFC, Mulholland, AJ & Walker, AJ 2017, 'Pipe organ air-coupled broad bandwidth transducer' Paper presented at IEEE International Ultrasonics Symposium, Washington, United States, 6/09/17 - 9/09/17, .

Pipe organ air-coupled broad bandwidth transducer. / Zhu, B.; Tiller, B.; Windmill, J.F.C.; Mulholland, A.J.; Walker, A.J.

2017. Paper presented at IEEE International Ultrasonics Symposium, Washington, United States.

Research output: Contribution to conferencePaper

TY - CONF

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

ER -

Zhu B, Tiller B, Windmill JFC, Mulholland AJ, Walker AJ. Pipe organ air-coupled broad bandwidth transducer. 2017. Paper presented at IEEE International Ultrasonics Symposium, Washington, United States.