抄録
This paper describes the measurement errors casused from sticking a thermocouple on sunlit materials using a glue or a tape. First, the error factors were extracted and classified as the result of outdoor experiment. In addition, we clarified the relationships between measurement errors and error factors ; the diameter of a thermocople, sticking conditions, the kinds of tapes and the width of a tape which sticks a thermocouple on a sunlit glazing material. The main results of this study are as follows ; 1) The temperature errors can remain less than 0.3℃, when a thermocouple of diameter about less than 50 μm is stuck on a transparent or a frosted glass using a transparent glue. 2) We discussed temperature distributions of the glazing material around the tape which sticks a thermocouple, using thermographs by an infrared camera. Three kinds of tapes were used for this experiment ; a transparent tape, an aluminum foil and a white vinyl tape. The transparent tape is the most effective one in these three tapes. For example, accuracy of the measurement is within 0.5℃, when the width of this tape is less than 5mm on the outdoor side of the glazing material and less than 8mm on the indoor side. On the other hand, when we use the aluminum foil or white vinyl tape sticking on the outdoor side of a glass, the tape less than 2mm in width is required in order to have the measurement accuracy with in 0.5℃.
