I'm looking for Water Flow sensor and the pulse receiver electronics to go with

Lasers
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1

I’m looking for Water Flow sensor and the pulse receiver electronics to go with it to interrupt the laser beam… or?

2

Welkome to arduino

3

You could go that route or just wire a simple on/off flow sensor into the laser enable wire.

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I’m going the Arduino path with one of these - http://www.ebay.com/itm/181562348669?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT

5

So just ignore the signal wire and run it in series thru the disable switch… Makes sense. Thks. The only reason I was thinking of it was maybe being able to come up with pulses per liter info on a digital readout. It would be nice to have when comparing flow to cooling to ambient temp. to duty cycle.

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@Steve_Clark this method has been working for me for some time.
Knowing the flow rate might be “cool” :).

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I much prefer a rotating sensor like the one Steven refers to. I noted elsewhere a failure of the moving-flap type due to an obstruction that made it stick open.

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@artag in my system setup if the temp gets too high it shuts down the laser independent of water flow sensor :).

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@donkjr if u still on forum after 3 years, do u have temp probe right next to laser tube?