Subject:
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Re: Pneumatic pump and switch version 2
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 3 Dec 2001 18:30:33 GMT
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Viewed:
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2063 times
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Edmund Nussbaum wrote:To have a pressure sensor would be very nice. You
could
> have multiple of the pumps & switches (using a single air
> tank). Depending on the pressure the RCX can control the
> time that is needed to recover pressure. And whenever
> you need some extra power, you can pump up to higher
> pressure in advance before switching.
>
> So, where is the ultimative pressure sensor? When
> combining mindstorms with pneumatics it is urgendly
> needed.
>
> eddy
Try to get disposable pressure sensors used in hospitals.
They just cost about $10, the gain is calibrated at an accuracy of 1
mmHg, the offset is very stable and the range is from a few mmHg uptill
500 mmHg. You can interface them to any bridge amplifier. I'm using them
with my standard bio-amplifier, see circuit at
http://baserv.uci.kun.nl/~smientki/Lego_Knex/Lego_electronica/BioSensors/Bio_amplifiers.htm
Stef
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Message is in Reply To:
 | | Re: Pneumatic pump and switch version 2
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| (...) To have a pressure sensor would be very nice. You could have multiple of the pumps & switches (using a single air tank). Depending on the pressure the RCX can control the time that is needed to recover pressure. And whenever you need some (...) (25 years ago, 3-Dec-01, to lugnet.robotics)
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