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    ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 >  Item 310904400/18549


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/18549


    Title: Lump Circuit Modeling and Matching Consideration on Acoustical Transmitters for Underwater Application
    Authors: 陳永欽;Chen, Yeong-Chin
    Contributors: 資訊工程學系
    Keywords: lump circuit;acoustical transmitter;equivalent circuit;impedance matching;underwater application.
    Date: 2004-11
    Issue Date: 2012-11-26 13:55:06 (UTC+8)
    Abstract: In underwater environment the acoustical wave can transmit a
    long ranges away from the transmitter than the electromagnetic wave
    does. So far, the piezoelectric ceramic is still the best candidate as
    acoustical telemetry transmitters in underwater applications. The
    impedance matching on the interface between electro-acoustical transducer
    and electrical transmitter has been the most important subject to
    confirm the high transmitting efficiency. In this research, a lumped
    equivalent circuit of electro-acoustic transducer is proposed. Then,
    the network theorem is implemented to design a high power transformer
    for impedance matching, and to improve the electro-acoustic
    efficiency of the transducer. In the developing procedure, the
    transducer’s impedance is measured and the circuit element of equivalent
    circuit is deduced from the measured data to correlated the
    simulated values of the equivalent circuit. Then the matching transformer
    is developed to meet the specifications of impedance matching
    and high power operation. The equivalent circuit of the electroacoustic
    transducer with matching transformer was developed and
    simulated using Hp-Vee program. The simulated results quite agree
    with the measured results. This approach really develops an effective
    method for impedance matching design and reduced the time for trial
    and error.
    Relation: Journal of Marine Science and Technology-Taiwan
    Appears in Collections:[資訊工程學系] 期刊論文

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