Re: [ATM] ATM Fluid Drive Rate Regulation Ideas

["Don Clement" <clement.focuser@verizon.net>]

Another fluid regulator mechanism that might be of interest is the SU
carburetor with tapered needle valve connected to a mechanical piston
feedback (and dampening oil).



Don Clement

Running Springs, California



"If you're not part of the solution, you're part of the precipitate."





> > Flash! the rate of flow from the waterbag depends on the height of water
> > PLUS the weight of the telescope it's supporting!  The change in flow
rate
> > as the water drains is much, much less than if it were just a bag of
> water.
>
> Perhaps an arrangement with a differential flow regulator similar to that
> found in differential pressure regulators on compressed gas cylinders.
Also
> some sort of feedback from a linear temperature sensor or mechanical
> bimetallic strip could compensate for temperature variations to keep flow
> constant.
>
> It seems that similar problems were solved in regulating the length of
clock
> pendulums. John Harrison invented the gridiron pendulum compensation.
> Another compensation method that I saw in a shop the other day is the
> mercury compensated pendulum invented by George Graham. A seemingly
> unsolvable problem is just opportunity knocking.
>
>
>
> Don Clement
>
> Running Springs, California
>
>
>
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