| 摘要 |
Method and equipment for measuring the heat flow (J) through a construction (K) having a thickness (D), where a temperature difference (&Dgr;T) is formed transversely through the thickness of the construction. According to the invention, at least two temperature sensors (G1, G2) are placed against a first surface (S1) and at least one first temperature sensor (G1) is insulated thermally from the second temperature sensor (G2), so that the temperature (T1′) sensed by the thermally insulated sensor (G1) is affected by the heat flow through the construction (K) more than the temperature (T1″) detected by the second temperature sensor. The temperature difference (T1″−T1′) between the second sensor (G2) and the first sensor (G1) is determined and the first sensor is supplied with energy by warming the first surface in a region surrounding the first sensor (G1), in order to reduce the temperature difference (T1″−T′) and based on the amount of energy (Eq) supplied, the heat flow (J) through the structure is determined as a function of the temperature difference (&Dgr;T). The present invention makes it possible to easily determine the U-value of a construction. |
