Focusing Effect of Plano-Convex and Plano-Concave Ultrasonic Transducers
Summary :
Recently, transducers with high resolution are required in the fields of ultrasonic imaging and non-destructive testing. The plano-convex and plano-concave transducers treated in this paper are suitable for these purposes. These transducers show the focusing effect and broad frequency bandwidth for the radiation of ultrasonic pulses. These two features show the high lateral-distance and time resolutions respectively. However, the principle of the focusing effect on these transducers has been vague until now. This focusing effect will be discussed in this paper. The mechanisms of the focusing effect for ultrasonic pulses radiated from the plano-convex and plano-concave transducers are cleared through two experiments using a wedged transducer and a semi-cylindrical transducer. Also, the formulas for the geometrical focal points of pulses radiated from each transducer are derived, and its calculations are compared with the measurements.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E74-A No.3 pp.506-511
- Publication Date
- 1991/03/25
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Ultrasonics
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Tsutomu KOBAYASHI, Kiyoshi AOKI, Katsuo NEGISHI, "Focusing Effect of Plano-Convex and Plano-Concave Ultrasonic Transducers" in IEICE TRANSACTIONS on Fundamentals,
vol. E74-A, no. 3, pp. 506-511, March 1991, doi: .
Abstract: Recently, transducers with high resolution are required in the fields of ultrasonic imaging and non-destructive testing. The plano-convex and plano-concave transducers treated in this paper are suitable for these purposes. These transducers show the focusing effect and broad frequency bandwidth for the radiation of ultrasonic pulses. These two features show the high lateral-distance and time resolutions respectively. However, the principle of the focusing effect on these transducers has been vague until now. This focusing effect will be discussed in this paper. The mechanisms of the focusing effect for ultrasonic pulses radiated from the plano-convex and plano-concave transducers are cleared through two experiments using a wedged transducer and a semi-cylindrical transducer. Also, the formulas for the geometrical focal points of pulses radiated from each transducer are derived, and its calculations are compared with the measurements.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e74-a_3_506/_p
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@ARTICLE{e74-a_3_506,
author={Tsutomu KOBAYASHI, Kiyoshi AOKI, Katsuo NEGISHI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Focusing Effect of Plano-Convex and Plano-Concave Ultrasonic Transducers},
year={1991},
volume={E74-A},
number={3},
pages={506-511},
abstract={Recently, transducers with high resolution are required in the fields of ultrasonic imaging and non-destructive testing. The plano-convex and plano-concave transducers treated in this paper are suitable for these purposes. These transducers show the focusing effect and broad frequency bandwidth for the radiation of ultrasonic pulses. These two features show the high lateral-distance and time resolutions respectively. However, the principle of the focusing effect on these transducers has been vague until now. This focusing effect will be discussed in this paper. The mechanisms of the focusing effect for ultrasonic pulses radiated from the plano-convex and plano-concave transducers are cleared through two experiments using a wedged transducer and a semi-cylindrical transducer. Also, the formulas for the geometrical focal points of pulses radiated from each transducer are derived, and its calculations are compared with the measurements.},
keywords={},
doi={},
ISSN={},
month={March},}
Copy
TY - JOUR
TI - Focusing Effect of Plano-Convex and Plano-Concave Ultrasonic Transducers
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 506
EP - 511
AU - Tsutomu KOBAYASHI
AU - Kiyoshi AOKI
AU - Katsuo NEGISHI
PY - 1991
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E74-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 1991
AB - Recently, transducers with high resolution are required in the fields of ultrasonic imaging and non-destructive testing. The plano-convex and plano-concave transducers treated in this paper are suitable for these purposes. These transducers show the focusing effect and broad frequency bandwidth for the radiation of ultrasonic pulses. These two features show the high lateral-distance and time resolutions respectively. However, the principle of the focusing effect on these transducers has been vague until now. This focusing effect will be discussed in this paper. The mechanisms of the focusing effect for ultrasonic pulses radiated from the plano-convex and plano-concave transducers are cleared through two experiments using a wedged transducer and a semi-cylindrical transducer. Also, the formulas for the geometrical focal points of pulses radiated from each transducer are derived, and its calculations are compared with the measurements.
ER -
English
