Subject:
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RE: EGAD! (pneumatics)
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 16 Jun 2003 13:57:28 GMT
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Original-From:
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Rob Limbaugh <RLIMBAUGH@GREENFIELDGROUP.saynotospamCOM>
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Viewed:
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814 times
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>
> Yes, the switches would need to remember their last set
> state. Ideally,
> this would be done through the use of electric pneumatic
> switches which,
> when not receiving any power, simply stay in the last
> position they were
> set in. If this isn't practical then yeah... electronics
> would need to
> be hooked up to keep the switches in their last set state.
That sounds like a coil would have to stay energized, consuming power
all the time. When power is removed, the state would be reset.
Using a motor to move a mechanical valve control would eliminate that
problem, but then feedback would be needed to determine valve state.
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