| 摘要 |
PURPOSE:To measure the surface temp. of a heat generator in a stationary state, by providing a piston sliding along the surface of the heat generator and that of a thermometric resistor to a cylinder having the heat generator and the thermometric resistor mounted therein in parallel. CONSTITUTION:A piston 5 moves up and down by the air used in a factory and a fluid is sucked in and discharged from a cylinder 3 through a fluid inflow port 6 with the up-and-down movement of the piston 5. The fluid sucked in the cylinder 3 becomes a stationary state and accurate measurement good in sensitivity becomes possible. In this case, a current is supplied to a heat generator 2 to measure the average temp. thetaomega of the heat generator 2 and, at the same time, the temp. thetainfinity of the fluid is measured by a thermometric resistor. Then, heat conductivity and temp. conductivity can be calculated from the relational expression of a non-steady fine wire method and viscosity can be calculated from said heat transfer rate.
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