A method for measurement of water temperature in micro-region using near infrared light

被引：2

作者：

Kakuta, N. ^{[1
]}

Li, F. ^{[1
]}

Yamada, Y. ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Mech Engn & Intelligent Syst, Chofu, Tokyo 182, Japan

来源：

2005 27TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-7 | 2005年

关键词：

temperature; near-infrared (NIR); absorption; spectrum; water; microscopy;

D O I：

10.1109/IEMBS.2005.1617142

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

We have proposed a method for non-invasively measuring the temperature changes of water in a micro-region using near infrared (NIR) light. The goal of this study is to measure the temperature changes of biological cells or tissues. This method is on the basis of the phenomenon that the NIR absorption spectrum of water depends on temperature. First, in order to confirm whether a right irradiation for the temperature measurement itself affects the water temperature, we calculated the temperature rise caused by the optical absorption. Next, absorbance spectra in the wavelength range of 1300 - 2000 nm of water with a thickness of 100 and 500 mu m were measured by a micro-spectrometer. The measured spectra with temperature-dependence were calibrated using a regression analysis. The standard error of calibration was 0.6 degrees C for 100 mu m-thickness.

引用

页码：3145 / 3148

页数：4

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