Thermoacoustic and photoacoustic sensing of temperature
Thermoacoustic and photoacoustic sensing of temperature
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DOI：
10.1117/1.3247155
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发表时间：
2009-09-01
影响因子：
3.5
通讯作者：
Wang, Lihong V.
中科院分区：
文献类型：
--
作者：
Pramanik, Manojit;Wang, Lihong V.
我们提出了一种新的温度传感技术，利用热声和光声测量。这种非侵入性方法已被证明使用组织模型具有高的时间分辨率和温度灵敏度。因为光声和热声信号幅度都取决于源对象的温度，所以信号幅度可以用于监测温度。取20个信号的平均值，在短至2 s的时间分辨率下获得0.15 ℃的温度灵敏度。这种技术的深层组织成像能力可能会导致我们在体内温度监测热或低温应用。(C)2009年，由光学仪器工程师协会（Society of Photo-Optical Instrumentation Engineers）主办。[DOI：10.1117/1.3247155]
We present a novel temperature-sensing technique using thermoacoustic and photoacoustic measurements. This noninvasive method has been demonstrated using a tissue phantom to have high temporal resolution and temperature sensitivity. Because both photoacoustic and thermoacoustic signal amplitudes depend on the temperature of the source object, the signal amplitudes can be used to monitor the temperature. A temperature sensitivity of 0.15 degrees C was obtained at a temporal resolution as short as 2 s, taking the average of 20 signals. The deep-tissue imaging capability of this technique can potentially lead us to in vivo temperature monitoring in thermal or cryogenic applications. (C) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3247155]