| 摘要 |
The present invention relates to a method and a device for measuring heat flow on surfaces. In order not to disturb the heat flow with the measuring device itself when measuring heat flow and thereby to falsify the measurement, a special measuring head (MK) is used, which eliminates the influence of the measuring head (MK) on the surface (F0) at the time of the measurement by means of electronically controlled heating elements (H1, H2, H3, H4). A first body (1) and a second body (2) surrounding it are brought into contact with the surface (F0) to be measured. A third body (3) inside the measuring head (MK) serves as a reference. A fourth body (4) surrounds the three other bodies (1, 2, 3) as protection against environmental influences. All four bodies (1, 2, 3, 4) are equipped with temperature measurement sensors (T1, T2, T3, T4) and heating elements (H1, H2, H3, H 4) and are held at the temperature of the first body (1) via a corresponding drive unit by means of a control (R) of the heating elements (H1, H2, H3, H4). An evaluation electronic unit (E) uses the temperature measurements and the heat power supplied to the individual bodies (1, 2, 3) to determine the point in time at which the heat flow in the surface (F0) is not disturbed by the measuring head (MK), and determines the heat flow at this point in time. <IMAGE>
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