|
发表于 2011-6-23 21:31:43
|
显示全部楼层
here is a quick experiment.
I rewrote my pid routines to incorporate the control logic I laid out earlier. the process to be controlled is a heated oven, with natural temperature-dependent decay.
the relay controls a heater that heats up the oven when turned on. otherwise, the oven dissipates heat, more at higher temperature.
the target temperature is set at 128c, with a range of +/- 1 degree. I routed the temperature to the output on a 5v dac so the temperature should read around 2.5v.
(原文件名:50. relay control 1.PNG)
as you can see, the relay kicks in / out about 14 timers per "simulated" second. |
|