Optical measurement of temperature distributions around a small magnetic sphere under high-frequency magnetic field
| Project/Area Number |
25630069
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Thermal engineering
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
KAKUTA Naoto 首都大学東京, 理工学研究科, 准教授 (70345437)
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| Co-Investigator(Renkei-kenkyūsha) |
ITO Akira 九州大学, 工学研究院, 准教授 (60345915)
ARIMOTO Hidenobu 独立行政法人産業技術総合研究所, 電子光技術研究部門, 主任研究員 (50344198)
KONDO Katsuya 鳥取大学, 工学研究科, 教授 (00295750)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 温度測定 / ハイパーサーミア / 近赤外分光 / 誘導加熱 / バイオ熱工学 |
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| Outline of Final Research Achievements |
An optical measurement method was developed by combining the near-infrared temperature imaging technique with inverse Abel transform technique in order to show the temperature images of water around a small magnetic sphere heated by high-frequency magnetic field. This method is based on the temperature dependence of the absorbance of water at a certain wavelength, and needs no phosphor. Radial distributions of temperature around the sphere can be measured, which has never been achieved by any other method. The temperature images obtained for 1 mm and 2 mm diameter spheres indicated quantitatively that temperature differences were caused by differences in the diameter, heating power (coil current), and distance between the sphere and coil. The temperature resolution was 0.5 K at most and the spatial resolution was 50 μm. Furthermore, the heat generation rates of the sphere were predicted from the temperature distributions.
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Report
(3 results)
Research Products
(13 results)
