Wave propagation in long compound acoustic transmission line: Numerical simulation and measurement

B. R. Tittmann, R. Lerch, H. Landes, S. Madden, H. Tavossi

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

This paper describes the FEM-BEM simulation of and measurements on an acoustic transmission line consisting of three connected components; a long thin tube, a narrow solid cylinder, and a long narrow column of water. The total path length corresponded to about 8500 wavelengths at the highest frequency used, 5 MHz. Applications for this topic are in the field of high resolution ranging and is particularly important in leadscrew position measurement, where high precision over long travel lengths are required. The new aspects of this study lie firstly, in the development of special hybrid FEM-BEM simulation techniques to handle the extremely long lengths, secondly in the optimum choice of waveguide modes, and thirdly in the details of the experimental measurements, especially, when applied to industrial leadscrew position detection. Current techniques for measuring leadscrew positions are based on electromagnetic sensors and give a range resolution of only about 10 mm. The ultrasonic range detection provided a precision of 1 mm.

Original languageEnglish (US)
Pages (from-to)401-404
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume1
StatePublished - Dec 1 1997
EventProceedings of the 1997 IEEE Ultrasonics Symposium. Part 1 (of 2) - Toronto, Can
Duration: Oct 5 1997Oct 8 1997

Fingerprint

Wave propagation
transmission lines
wave propagation
Electric lines
Acoustics
Finite element method
Position measurement
acoustics
Computer simulation
Waveguides
simulation
Ultrasonics
Wavelength
Sensors
travel
Water
ultrasonics
electromagnetism
tubes
waveguides

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Tittmann, B. R. ; Lerch, R. ; Landes, H. ; Madden, S. ; Tavossi, H. / Wave propagation in long compound acoustic transmission line : Numerical simulation and measurement. In: Proceedings of the IEEE Ultrasonics Symposium. 1997 ; Vol. 1. pp. 401-404.
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Wave propagation in long compound acoustic transmission line : Numerical simulation and measurement. / Tittmann, B. R.; Lerch, R.; Landes, H.; Madden, S.; Tavossi, H.

In: Proceedings of the IEEE Ultrasonics Symposium, Vol. 1, 01.12.1997, p. 401-404.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Wave propagation in long compound acoustic transmission line

T2 - Numerical simulation and measurement

AU - Tittmann, B. R.

AU - Lerch, R.

AU - Landes, H.

AU - Madden, S.

AU - Tavossi, H.

PY - 1997/12/1

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N2 - This paper describes the FEM-BEM simulation of and measurements on an acoustic transmission line consisting of three connected components; a long thin tube, a narrow solid cylinder, and a long narrow column of water. The total path length corresponded to about 8500 wavelengths at the highest frequency used, 5 MHz. Applications for this topic are in the field of high resolution ranging and is particularly important in leadscrew position measurement, where high precision over long travel lengths are required. The new aspects of this study lie firstly, in the development of special hybrid FEM-BEM simulation techniques to handle the extremely long lengths, secondly in the optimum choice of waveguide modes, and thirdly in the details of the experimental measurements, especially, when applied to industrial leadscrew position detection. Current techniques for measuring leadscrew positions are based on electromagnetic sensors and give a range resolution of only about 10 mm. The ultrasonic range detection provided a precision of 1 mm.

AB - This paper describes the FEM-BEM simulation of and measurements on an acoustic transmission line consisting of three connected components; a long thin tube, a narrow solid cylinder, and a long narrow column of water. The total path length corresponded to about 8500 wavelengths at the highest frequency used, 5 MHz. Applications for this topic are in the field of high resolution ranging and is particularly important in leadscrew position measurement, where high precision over long travel lengths are required. The new aspects of this study lie firstly, in the development of special hybrid FEM-BEM simulation techniques to handle the extremely long lengths, secondly in the optimum choice of waveguide modes, and thirdly in the details of the experimental measurements, especially, when applied to industrial leadscrew position detection. Current techniques for measuring leadscrew positions are based on electromagnetic sensors and give a range resolution of only about 10 mm. The ultrasonic range detection provided a precision of 1 mm.

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