DocumentCode
1179099
Title
Amplitude and phase calibration of hydrophones by heterodyne and time-gated time-delay spectrometry
Author
Koch, Christian
Author_Institution
Ultrasonics Sect., Phys. Tech. Bundesanstalt, Braunschweig, Germany
Volume
50
Issue
3
fYear
2003
fDate
3/1/2003 12:00:00 AM
Firstpage
344
Lastpage
348
Abstract
Two methods for the amplitude and phase calibration of hydrophones based on time-delay spectrometry are presented: a time-gating technique and heterodyne frequency conversion that allows the phase-locked (i.e., coherent) detection of hydrophone signals. Amplitude and phase of the hydrophone sensitivity are obtained in the frequency range 1-20 MHz. In addition, to show the broad-band capabilities of the methods, amplitude values are measured between 4 and 50 MHz.
Keywords
acoustic signal detection; calibration; heterodyne detection; hydrophones; 1 to 20 MHz; 4 to 50 MHz; amplitude calibration; amplitude values; broad-band capabilities; coherent detection; heterodyne frequency conversion; hydrophones; phase calibration; phase-locked detection; sensitivity; time-gated time-delay spectrometry; Calibration; Distortion measurement; Frequency; Optical distortion; Phase detection; Signal analysis; Sonar equipment; Spectroscopy; Ultrasonic variables measurement; Voltage;
fLanguage
English
Journal_Title
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
Publisher
ieee
ISSN
0885-3010
Type
jour
DOI
10.1109/TUFFC.2003.1193629
Filename
1193629
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