More accurate temperature measure and homogeneity
- The temperature measurement for a quick process must be well adapted. In fact all the classical captors (sensors, etc...) are suffering of some problems which are :
- - the thermal contact resistance, it is the abilty to measure the real object's temperature in relation with the contact area exchange.
- - the thermal inertia, it is the time needed by the sensor to reach the object's temperature.
- - the thermical intrinsic resistance, it is the thermal exchange with the environment giving a temperature gap with the object.
- Infrared pyrometers will suffer from other limitations as variable emissivity function of the product (for exemple enamelled wires whose measured temperature varies function of the enamel nature covering them). From all this we can deduce temperatures measurements are very complicated , difficult to implement and totally inaccurate for a quick process.
- So AMR uses a totally different device which is the measurement of the real product temperature but not an estimation by comparison as in classical systems. The accurate temperature measure is based on the variation of the products's resistivity by continuous measurement of their résistance and of the dR/dt to control the temperature gradients.
- So AMR polymerization machines allow very accurate temperature controls providing the mastering of processes and from this very high capabilities.
- - the thermal contact resistance, it is the abilty to measure the real object's temperature in relation with the contact area exchange.
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