A thermal insulation method for a piezoelectric transducer
Data(s) |
2007
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Resumo |
This study deals with the sources of signal distortion of a piezoelectric transducer heated by measured gas flow. These signal distortions originate from both unloading of preload on a piezocrystal because of expansion of a diaphragm in the test apparatus and the pyroelectric effect of a heated piezoelectric crystal. A plastic film on the diaphragm of the transducer can effectively insulate the diaphragm and the piezocrystal within transducer from heating by gas flow, eliminating the sources of distortion. A method for evaluating the thickness of the film is proposed. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Chinese Science Bulletin.2007,52(17):2305-2309 |
Palavras-Chave | #Instantaneous Pressure Measurement #Piezoelectric Transducer #Thermal Insulation |
Tipo |
期刊论文 |