LABORATORY RADIATION FURNACE FOR HIGH TEMPERATURES

M. Pohl, J. Perovnik, I. Bajsic

Abstract

In the field of calibration of temperature measurement devices, the comparison method is usually used. To improve the uncertainty of the method, a number of specific conditions should be taken into account, such as temperature stability and the homogenous field inside the working area of the heating device. It is more difficult to realise those demands at higher temperatures in excess of 1000°C. We discuss the commercial heating furnace, carry out the reconstruction of the heating element and improve regulation, attaching importance to the location of the sensors. The isothermal 600-mm-long cylindrical block, with holes for testing and a reference probe, is linked with a special cylindrical heating element to compensate for heat flow at the front of the furnace and to improve uniformity.

Keywords

calibration, furnace, temperature uniformity

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IMEKO-WC-2000-TC12-P316.pdf

DOI

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IMEKO TC

TC12 - Temperature and Thermal Measurements

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