2.6 Temperature servo theory of operation

The temperature servos on VueMetrix controllers use a proprietary method. They are somewhat analogous to a traditional PI servo, but there are significant differences. Two gain coefficients are used: the offset gain determines the response of the servo in proportion to the set point error (the difference between the set point and the actual temperature); the slope gain determines the response to the observed temperature versus time slope. The set point is achieved when both the set point error and the slope are zero. It is useful to think of the offset gain as determining the responsiveness of the servo, while the slope gain determines its damping. Because of the inherent non-linearity of TECs, perfect performance throughout the range is not achieved. But the algorithm combines noise immunity, good performance at the set point, and minimal overshoot when changing from one set point to another.

http://www.vuemetrix.com/support/tech/tempcontrolmeas.html


"Siemens Fachwörterbuch industrielle Elektrotechnik" also gives "time slope" for "Zeitrampe"