| 摘要 |
Disclosed is a measuring tip (10) for a radiation thermometer, wherein the infrared radiation to be measured is guided to a radiation sensor (14) by means of a wave guide (12). Said sensor converts incident radiation into an electrical output signal. The desired temperature is determined from said signal by means of a downstream electronic measuring system located. In order to reduce temperature gradients in the sensor (14), the sensor housing (16) is thermally coupled to the wave guide (12) by means of a thermal coupling device (24, 28, 30) so that the wave guide (12) is placed in direct thermal contact with the side of the sensor housing (16) facing the radiation and the opposite side thereof. Preferably, the thermal coupling device (24, 28, 30), which is made of good heat conducting material, covers the entire surface of the corresponding sides of the sensor housing (16). The invention also relates to a corresponding method for reducing temperature gradients of the housing (16) of the radiation sensor (14). The inventive measuring tip (10) enables accurate temperature measurement even when temperature rise is irregular. Said tip is also small, lightweight and compact, thereby enabling the production of a radiation thermometer which is easy to handle and user-friendly such as those which are normally used to measure the temperature inside the ear. |
