作者
Deepti Pachauri, Timothy A Stiles, Namrta Purwar, Prasenjit Dey, SK Patch
发表日期
2008/2/28
研讨会论文
Photons Plus Ultrasound: Imaging and Sensing 2008: The Ninth Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics
卷号
6856
页码范围
442-448
出版商
SPIE
简介
Ideal transducers have perfectly uniform response to incoming pressure waves, regardless of frequency. In practice, piezoelectric transducers are designed with a particular center frequency (CF) and are most sensitive to signals with strong frequency content near CF, bandpass filtering signal - and reconstructed images. We characterized the frequency dependent receive sensitivity of three single-element transducers with CFs ranging from 1 to 3.5 MHz. The resulting sensitivity response curves are applied to ideal thermo/photo/opto-acoustic (TPOAT) signals generated by ideal spherical absorbers to show the impact of transducer frequency response on measured TPOAT data and reconstructed images.
引用总数
2011201220132014201520161121
学术搜索中的文章
D Pachauri, TA Stiles, N Purwar, P Dey, SK Patch - Photons Plus Ultrasound: Imaging and Sensing 2008 …, 2008