Re: PID vs. temp stability question

papenfussDIESPAM@xxxxxxxxxxxxxxxxxxxx wrote:
> The time-lag can be taken into account with a feedforward control approach...
something that has been mentioned fairly infrequently according to googlegroups. 

Infrequently, yes, but it has been discussed.

Thing is, controlling the _boiler_ temperature with extreme accuracy is not enough. You're trying to control the _brew water_ temperature with extreme accuracy. They're not the same thing, of course, and doing the former is considerably easier than doing the latter..

--


-Andy S.
 picture page:  http://tinyurl.com/eh0x
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