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Temperature and pressure characteristics of ultrasonic transducer and the amplitude spectra correction of echoes
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作者 YU Houquan QU Wanli and HUANG Zailu(Dept. of Electronics and Information Eng. Huazhong University of Science and Technology Wuhan 430074)WEI Zongzhou LEI Furong and QIANG yuming (Jinghan Logging Institution Qianjiang City, Hubei Province 433123)Receive 《Chinese Journal of Acoustics》 1997年第2期144-151,共8页
In this paper,the transfer functions of ultrasonic transducers under different temperatures are imitated according to Mason equivalent circuit. The relevant experiments are carried out. The results show that the trans... In this paper,the transfer functions of ultrasonic transducers under different temperatures are imitated according to Mason equivalent circuit. The relevant experiments are carried out. The results show that the transfer characteristic of ultrasonic transducer varies with temperature and pressure. Therefore, we present an approach to correct the amplitude spectra of ultrasonic echoes got in different temperature and pressure environmeots. The theoretical simulation and experimental results prove that the approach is simple, effective and practical. 展开更多
关键词 temperature and pressure characteristics of ultrasonic transducer and the amplitude spectra correction of echoes
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