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Report No.

Development of micro temperature sensors for the measurement of boundary conditions including surface heat flux and surface temperature

Liu, W.; Nagatake, Taku; Takase, Kazuyuki

In order to understand a fast changing transient heat transfer phenomenon such as boiling, Japan Atomic Energy Agency has begun to develop a measuring technology for the surface temperature and surface heat flux, without sensors set on the surface. The technique for the measurement of surface temperature and surface heat flux involves two steps: (1) measurement of the inner block temperatures using special micro temperature sensors, which are placed at a depth of several micrometers beneath the surface; (2) solving an inverse heat conduction problem (IHCP) to obtain the surface heat flux and surface temperature by using the measured inner block temperature data. This paper gives the description for the development result of the special micro temperature sensors in the year 2010.



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