Youngsub Lim
Kyungpook National University
11 Papers
39 Citations
Youngsub Lim is an academic researcher from Kyungpook National University. The author has contributed to research in topics: Transducer & Sound pressure. The author has an hindex of 4, co-authored 11 publications.
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Papers
Design and Fabrication of a Multimode Ring Vector Hydrophone
TL;DR: In this paper, a new simple method for detecting the direction of a sound wave with a piezoelectric ring hydrophone is proposed, which divides the piezoceramic ring of the hydrophone into eight elements and distinguishes the direction by combining the output voltages of the elements in a particular manner.
Analysis of the transmitting characteristics of an acoustic conformal array of multimode tonpilz transducers by the equivalent circuit method
TL;DR: In this paper, the effect of mutual interference between constitutive elements of the conformal array in addition to its own property of the array was analyzed using an equivalent circuit method, which has not been possible with conventional equivalent circuits.
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Design of a Wideband Tonpilz Transducer Comprising Non-Uniform Piezoceramic Stacks with Equivalent Circuits.
TL;DR: In this article, a non-uniform drive section that consists of piezoelectric stacks of various thicknesses is proposed to improve the bandwidth of a multimode Tonpilz transducer.
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Incidence Angle Estimation by the Tonpilz Type Underwater Acoustic Vector Sensor with a Quadrupole Structure
Youngsub Lim,Yongrae Roh +1 more
TL;DR: In this paper, a vector sensor based on the Tonpilz transducer structure was proposed, which is sensitive to both the magnitude and the azimuthal direction of an acoustic wave.
Design of a Multimode Piezoelectric Spherical Vector Sensor for a Cardioid Beam Pattern
TL;DR: In this article, the authors proposed a method to simultaneously measure both the magnitude and direction of the sound wave with the spherical sensor, which divides the piezoceramic sphere of the sensor into eight elements, and distinguishes the direction of sound pressure by combining the output voltage of the elements in particular manner.
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