Method and device for measuring the surface temperature of moving objects, in particular for the intermediate monitoring of the temperature of filamentary products, preferably wires

摘要

The invention relates to a method and device for measuring the surface temperature, which serve in particular for the intermediate monitoring of filamentary products, preferably wires, during production. They are suitable, in particular, for measuring the temperature of ribbons, fibres and objects moving at a speed of 0 to 65 m/s, and ensure the possibility of measurement independently of the material and of the surface quality. The essence of the method and the device is the use of two concentric sheath surfaces whose corresponding parts can be heated or if necessary cooled, in order to achieve an identical temperature value on the entire surface. The desired temperature value is identified with the temperature of the central region of the inner sheath. The method and the device can also be applied in the range of values, the measurement of the thermal radiation being complicated.