[time-nuts] LPRO-101 with Brooks Shera's GPS locking circuit

[buehl]

At 10:25 AM 12/20/2006, you wrote:
>Hello folks,
>
>The controller's task is to always pour just enough fluid from the
>second pot into the first pot to keep the fluid level constant despite
>the fluid lost through the small hole. One refinement of the model is
>that we also consider that the amount of fluid pouring out of the hole
>shall not only depend on the hole's size but also on the fluid level
>itself inside the pot as well as the surrounding's temperature for which
>there is no good counterpart in the model.


The model for the surounding temperature is a larger pot with a fluid level 
which is lower than the level in the "oven" pot.  Flow rate is dependent on 
the difference in the fluid levels, with the oven loosing less heat when 
the 'outside' pot is at a higher level. (higher temperature)

Tom Buehl