3D-analysis of bending-type transducers for distance measurement applications

Mario Jungwirth, Manfred Kaltenbacher, Michael Rabl, Stefan J. Rupitsch

Research output: Chapter in Book/Report/Conference proceedingsConference contributionpeer-review

Abstract

Ultrasonic sensors are commonly utilized for a wide variety of non-contact presence, proximity or distance measuring applications in industry, especially the automotive branch. This paper shows how the radiation properties of bending-type ultrasonic transducers depend on shape, dimensions and material parameters. In order to determine their dependencies, the behavior of such transducers with regard to their emitting characteristics in air is simulated using the finite element (FE) method. Therewith, the electrical impedance as well as the surface elongation together with the radiated ultrasound is computed. For performing reliable simulations, we utilize a mathematical inverse method (IM) to identify the material parameters. The results of the FE simulations have been validated by laser doppler velocimetry (LDV) and acoustic pressure measurements.

Original languageEnglish
Title of host publication2011 IEEE International Ultrasonics Symposium, IUS 2011
Pages1563-1566
Number of pages4
DOIs
Publication statusPublished - 2011
Event2011 IEEE International Ultrasonics Symposium, IUS 2011 - Orlando, FL, United States
Duration: 18 Oct 201121 Oct 2011

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2011 IEEE International Ultrasonics Symposium, IUS 2011
Country/TerritoryUnited States
CityOrlando, FL
Period18.10.201121.10.2011

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