ws at Yahoo wrote: > > As already stated, there are many different ways to design and or tune > a > temperature controller so it does not overshoot.
The 10811 control loop is constrained by the large oven mass and the limited size of the integrator capacitor. The capacitor is barely large enough in capacitance to prevent loop oscillation but on the other hand is barely small enough to physically fit in the available space. Unfortunately, no advances in capacitor size have occurred in the last 30 years, so we are still stuck with the original design. BTW, you cannot use a metallized mylar capacitor in an integrator, you must use a foil and mylar type. This is due to the "healing" process that metallized mylar capacitors undergo. Rick Karlquist _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
