Quote:
Originally Posted by personx
D_J
Where would I find an optical sensor for this kind of project? Is one used on a auto somewere or do you have something else in mind?
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for sensing an object breaking a white light beam or infared, radio shack for example has several types of light sensing components and emitters.
this one was listed under compoents at the shack
http://www.radioshack.com/product/in...rt&tab=summary
it takes a small handful of these 1 dollar parts to do the whole project from two ac signals in to a voltage out we can read with a multimeter, or with more effort to its own display.
to get just fuel flow per unit time, it would take half the processing. in fact these displays on treadmills and bicycles would do that once we get the right shape signal to input to them. The flow meter is the show stopped IMHO.
i am not knowledgeable enough in electronic to know all the lastest short cuts, there is probably a chip that incorporates all these components in to one piece