2-port Theory

  • Ilene J. Busch-Vishniac
Part of the Mechanical Engineering Series book series (MES)


In the previous parts of this book we have developed tools which are useful in the modeling and analysis of transducers, and we have discussed various mechanisms through which electrical signals can be generated from mechanical signals and vice versa. In this section of the book we abandon our detailed concentration on transduction mechanisms, in favor of a discussion of general transducer characteristics. We begin this discussion with a presentation of the classical view of transducers as 2-port elements. Using 2-port models, we will develop reciprocity relations and discuss arrays of transducers which are connected. Following this development, the next chapter will discuss transducer measurement specifications, concentrating on the precise definitions (when they exist) for the various measures of performance.


Output Port Input Effort Output Effort Output Flow Input Flow 
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  1. 1.
    I. J. Busch-Vishniac, A Fundamental Problem with Mobility Analysis of Vibration Isolation Systems, J. Acoust. Soc. Am., 81, 1801 (1987).ADSCrossRefGoogle Scholar
  2. 2.
    G. D. Monteah, Applications of the Electromagnetic Reciprocity Principle (Pergamon, Oxford, UK, 1973).Google Scholar
  3. 3.
    C. M. Harris (ed.), Handbook of Acoustical Measurements and Noise Control, 3rd ed. (McGraw-Hill, New York, 1991).Google Scholar
  4. 4.
    W. W. Harmon and D. W. Lytle, Electrical and Mechanical Networks (McGraw-Hill, New York, 1961).Google Scholar
  5. 5.
    I. J. Busch-Vishniac, Spatially Distributed Transducers: Part I—Coupled Two-Port Models, J. Dyn. Sys. Meas. Controls, 112, 372 (1990).ADSCrossRefGoogle Scholar
  6. 6.
    J. Hilgevoord, Dispersion Relations and Causal Description, An Introduction to Dispersion Relations in Field Theory (North-Holland, Amsterdam, 1962).Google Scholar
  7. 7.
    G. F. Chew, The Analytic S Matrix (W. A. Benjamin, New York, 1966).Google Scholar
  8. 8.
    P. C. Magnusson, G. C. Alexander, and V. K. Tirupathi, Transmission Lines and Wave Propagation, 3rd ed. (CRC, Boca Raton, FL, 1992).Google Scholar
  9. 9.
    H. M. Paynter and I. J. Busch-Vishniac, Wave-Scattering Approaches to Conservation and Causality, J. Franklin Inst., 325, 325 (1988).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • Ilene J. Busch-Vishniac
    • 1
  1. 1.Whiting School of EngineeringJohns Hopkins UniversityBaltimoreUSA

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