Hmm, so you were actuating the springs with heat?
On Mon, Jan 23, 2012 at 3:12 AM, CoryG <cory@geesaman.com> wrote:
> I was playing around with NiTi springs + steel wire (attached to the
> end of a spring, formed into a loop) to control the flow of microbore
> tubing by crimping it with the loop of steel wire awhile back. Pretty
> cheap, need to include a temperature sensor with the NiTi spring to
> prevent it from overheating or keep it submerged in water - other than
> that, they run about 5-20 cents (depending on sources of tubing and
> NiTi) a piece in parts - and have the potential to control multiple
> tubes in a single valve.
>
> On Jan 23, 2:52 am, Nathan McCorkle <nmz...@gmail.com> wrote:
>> these valves work on pneumatic/hydraulic pressure, basically like
>> stepping on a water hose to stop the flow.http://www.stanford.edu/group/foundry/Microfluidic%20valve%20technolo...
>>
>> if one would want to control hundreds or thousands of valves at a
>> reasonable cost... I'm wondering if you could acquire small hollow
>> electromagnets to use as a solenoid directly on the membrane, or as a
>> single-channel displacement pump.
>>
>> I'd like the cost per valve to be about $1-1.50 USD. It seems like
>> these would work but @$3-4 per valvehttp://www.ebay.com/itm/Miniature-ODV76-L92121-P2-Linear-Bi-Direction...
>>
>> I feel like Simon could really chime in with some good perspective on
>> this, is this something that would be low enough force that I could
>> wind the coils and build all the tiny solenoid/pumps?
>>
>> --
>> Nathan McCorkle
>> Rochester Institute of Technology
>> College of Science, Biotechnology/Bioinformatics
>
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--
Nathan McCorkle
Rochester Institute of Technology
College of Science, Biotechnology/Bioinformatics
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