Keyword search (3,448 papers available)


Simulation of electromechanical coupling coefficient by modified modal frequency spectrum method including the electrode effect

Author(s): Zhang Y, Wang Z, Cheeke JD

Ultrasonics. 2000 Mar;38(1-8):114-7 Authors: Zhang Y, Wang Z, Cheeke JD

Article GUID: 10829640
Measurement of the acoustic nonlinearity parameter in 1-alkanols

Author(s): Banchet J, Cancian J, Cheeke JD

Ultrasonics. 2000 Mar;38(1-8):301-4 Authors: Banchet J, Cancian J, Cheeke JD

Article GUID: 10829678
Dependence of single-bubble sonoluminescence on ambient pressure

Author(s): Dan M, Cheeke JD, Kondic L

Ultrasonics. 2000 Mar;38(1-8):566-9 Authors: Dan M, Cheeke JD, Kondic L

Article GUID: 10829727
Title:Measurement of the acoustic nonlinearity parameter in 1-alkanols
Authors:Banchet J,  Cancian J,  Cheeke JD
Link:https://www.ncbi.nlm.nih.gov/pubmed/10829678?dopt=Abstract
Category:Ultrasonics
PMID:10829678
Dept Affiliation: PHYSICS
1 Physics Department, Concordia University, Montreal, Quebec, Canada.

Description:

Measurement of the acoustic nonlinearity parameter in 1-alkanols

Ultrasonics. 2000 Mar;38(1-8):301-4

Authors: Banchet J, Cancian J, Cheeke JD

Abstract

We present a harmonic generation method based on a pitch-catch experimental setup and the calculation of the corresponding nonlinear parameter in 1-alkanols, from methanol to 1-decanol. By focusing a 14 MHz ultrasonic toneburst through a spherical quartz lens in these alcohols, a second harmonic is produced and measured as a function of distance by a 28 MHz piezoelectric transducer placed near the focus. By extracting the point where the second harmonic power is at a maximum in each liquid, the corresponding nonlinear parameter is then computed with a model developed by Germain et al. The preliminary results from this experiment are in reasonable agreement with the values found in the literature for primary alcohols and support the idea that the nonlinear parameter is dependent on the chain structure.

PMID: 10829678 [PubMed]