| 摘要 |
PURPOSE:To prevent the generation of a false output by providing a contact at the center part and circumferential part of one surface of a heat flow meter, embedding this heat flow meter in a wall that a heat flow to be measured penetrates, and bending lines of the heat flow penetrating the wall and measuring the heat flow from the temperature difference between the center part and circumferential part. CONSTITUTION:A contact is provided at the center part 3 and circumferential part 3' on the same surface 4 of the heat flow meter 1, and the heat conductivity of the wall 5 in which the heat flow meter 1 is embedded is made greatly different from that of the heat flow meter 1 itself. Therefore, the heat flow 2 is bent greatly to generate the temperature difference between the parts 3 and 3'. This temperature difference is proportional to the bending in the heat flow line direction and the points 3 and 3' are nearly at the same distance from the surface 4' which contacts a refrigerant, so nearly the same temperature variation with the wall 4' is obtained; and they are distant thermally, so the extent is small. Therefore, a false signal due to the temperature variation of the surface 4' is eliminated. |
