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Characteristics of thermal acoustic radiation as a source of acoustic signals

Characteristics of thermal acoustic radiation as a source of acoustic signals Abstract A linear dependence of the output voltage of an acoustic thermometer on the temperature difference between the source and the piezoelectric transducer is demonstrated experimentally. The constant component of the output voltage is determined by the noise temperature of the receiving device. The main feature of the thermal acoustic radiation as a source of acoustic signals is that the signal is represented not by the total thermal radiation of the object, which is proportional to the absolute temperature of the latter, but by the part of this radiation that is proportional to the temperature difference between the object and the transducer. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acoustical Physics Springer Journals

Characteristics of thermal acoustic radiation as a source of acoustic signals

Acoustical Physics , Volume 48 (1): 6 – Jan 1, 2002

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References (9)

Publisher
Springer Journals
Copyright
2002 MAIK "Nauka/Interperiodica"
ISSN
1063-7710
eISSN
1562-6865
DOI
10.1134/1.1435383
Publisher site
See Article on Publisher Site

Abstract

Abstract A linear dependence of the output voltage of an acoustic thermometer on the temperature difference between the source and the piezoelectric transducer is demonstrated experimentally. The constant component of the output voltage is determined by the noise temperature of the receiving device. The main feature of the thermal acoustic radiation as a source of acoustic signals is that the signal is represented not by the total thermal radiation of the object, which is proportional to the absolute temperature of the latter, but by the part of this radiation that is proportional to the temperature difference between the object and the transducer.

Journal

Acoustical PhysicsSpringer Journals

Published: Jan 1, 2002

Keywords: Acoustics

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