Heating system
for the measuring system is, as mentioned, a heating ring (HR) is required, which is shown in Fig. 1 schematically. This heating ring has the function of additional protection heater during the measurement. He is also (and primarily) provided as a main heating for the entire test facility and is in this sense (a) for heating in a steady state, and (b) to cover heat losses to the outside. It consists of a hollow cylinder with a small wall thickness and contains three heating circuits (resistance heating).
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