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Title: Characterization of the acoustic field generated by a horn shaped ultrasonic transducer

Abstract

A horn shaped Langevin ultrasonic transducer used in a single axis levitator was characterized to better understand the role of the acoustic profile in establishing stable traps. The method of characterization included acoustic beam profiling performed by raster scanning an ultrasonic microphone as well as finite element analysis of the horn and its interface with the surrounding air volume. The results of the model are in good agreement with measurements and demonstrate the validity of the approach for both near and far field analyses. Our results show that this style of transducer produces a strong acoustic beam with a total divergence angle of 10 degree, a near-field point close to the transducer surface and a virtual sound source. These are desirable characteristics for a sound source used for acoustic trapping experiments

Authors:
; ORCiD logo; ; ORCiD logo; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1395557
DOE Contract Number:
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 111; Journal Issue: 10
Country of Publication:
United States
Language:
English
Subject:
acoustic, horn, levitation, acoustic simulation

Citation Formats

Hu, B., Lerch, J. E., Chavan, A. H., Weber, J. K. R., Tamalonis, A., Suthar, K. J., and DiChiara, A. D. Characterization of the acoustic field generated by a horn shaped ultrasonic transducer. United States: N. p., 2017. Web. doi:10.1063/1.5002103.
Hu, B., Lerch, J. E., Chavan, A. H., Weber, J. K. R., Tamalonis, A., Suthar, K. J., & DiChiara, A. D. Characterization of the acoustic field generated by a horn shaped ultrasonic transducer. United States. doi:10.1063/1.5002103.
Hu, B., Lerch, J. E., Chavan, A. H., Weber, J. K. R., Tamalonis, A., Suthar, K. J., and DiChiara, A. D. 2017. "Characterization of the acoustic field generated by a horn shaped ultrasonic transducer". United States. doi:10.1063/1.5002103.
@article{osti_1395557,
title = {Characterization of the acoustic field generated by a horn shaped ultrasonic transducer},
author = {Hu, B. and Lerch, J. E. and Chavan, A. H. and Weber, J. K. R. and Tamalonis, A. and Suthar, K. J. and DiChiara, A. D.},
abstractNote = {A horn shaped Langevin ultrasonic transducer used in a single axis levitator was characterized to better understand the role of the acoustic profile in establishing stable traps. The method of characterization included acoustic beam profiling performed by raster scanning an ultrasonic microphone as well as finite element analysis of the horn and its interface with the surrounding air volume. The results of the model are in good agreement with measurements and demonstrate the validity of the approach for both near and far field analyses. Our results show that this style of transducer produces a strong acoustic beam with a total divergence angle of 10 degree, a near-field point close to the transducer surface and a virtual sound source. These are desirable characteristics for a sound source used for acoustic trapping experiments},
doi = {10.1063/1.5002103},
journal = {Applied Physics Letters},
number = 10,
volume = 111,
place = {United States},
year = 2017,
month = 9
}
  • A horn shaped Langevin ultrasonic transducer used in a single axis levitator was characterized to better understand the role of the acoustic profile in establishing stable traps. The method of characterization included acoustic beam profiling performed by raster scanning an ultrasonic microphone as well as finite element analysis of the horn and its interface with the surrounding air volume. The results of the model are in good agreement with measurements and demonstrate the validity of the approach for both near and far field analysis. Our results show that this style of transducer produces a strong acoustic beam with a totalmore » divergence angle of 10 degrees, a nearfield point close to the transducer surface and a virtual sound source. These are desirable characteristics for a sound source used for acoustic trapping experiments.« less
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