Advertisement

Measurement Methods for Low-Frequency Transducers

  • C. Giangreco
  • S. Faure
  • J. F. Rossetto
Conference paper

Abstract

This paper describes two methods which are used in GERDSM to calibrate low frequency transducers. The first technique is based on cross correlation functions. The feasibility of the technique has been demonstrated for transducers with low quality factor Q and its extension to projectors with high quality factor Q is described. A second method which reduces the transient part of the acoustic pressure by controlling the headmass velocity of the transmitting transducer has been tested successfully on actual projectors.

Keywords

Input Signal Cross Correlation Function Acoustic Pressure Analog Circuit Coherence Function 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. 18.1
    E. Kasiwagi, “FM signal-correlation for underwater acoustic measurement,” Acustica, 37, (1977).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1991

Authors and Affiliations

  • C. Giangreco
    • 1
  • S. Faure
    • 1
  • J. F. Rossetto
    • 1
  1. 1.GERDSM -DCAN Toulon, DCN, Le BruscSix Fours Les PlagesFrance

Personalised recommendations