发明名称 |
Method and apparatus for frequency encoded ultrasound-modulated optical tomography of dense turbid media |
摘要 |
An apparatus (10) for frequency encoded ultrasound modulated optical tomography is provided. A function generator (12) produces a frequency sweep signal which is applied to an ultrasonic transducer (20). The ultrasonic transducer (20) produces ultrasonic wave (25) in a turbid medium (21). Coherent light from a laser (22) is passed through turbid medium (21) where it is modulated by the ultrasonic wave (25). A photomultiplier tube (24) detects the light which passes through the turbid medium (21). The signal from the photomultiplier tube (24) is fed to an oscilloscope (30) and then to a computer (32) where differences in light intensity at different frequencies can determine the location of objects in the turbid medium (21). |
申请公布号 |
US6041248(A) |
申请公布日期 |
2000.03.21 |
申请号 |
US19970955671 |
申请日期 |
1997.10.22 |
申请人 |
THE TEXAS A&M UNIVERSITY SYSTEM |
发明人 |
WANG, LIHONG |
分类号 |
A61B5/00;G01N21/47;G01N29/00;G01N29/24;G01N29/34;(IPC1-7):A61B5/00 |
主分类号 |
A61B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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