[Lab] water sensor

[Nigel Vezeau]

I've never tried it, but apparently smoke detectors can be hacked to make a great water detector.

https://www.youtube.com/watch?v=wXdzyjNHsLQ


Nigel


>________________________________
> From: Paul & Andrea Mumby <themumbys at gmail.com>
>To: Darcy Whyte <darcy at inventorartist.com> 
>Cc: lab <lab at artengine.ca> 
>Sent: Monday, August 25, 2014 3:51:42 PM
>Subject: Re: [Lab] water sensor
> 
>
>
>Well there are several ways to detect water that I'm aware of:
>- Conductive (as you mention, this requires enough electrolytes in the water to conduct a signal)
>- Mechanical (using a float, and a lever for example)
>- Chemical (using something that will react in the presence of water)
>- Optical (light attenuation of certain IR spectrum and so on)
>- Ultrasonic (ultrasonics will bounce off the surface of the water, so most ultrasonic rangefinders will detect water level in a contactless way)
>
>
>So from that I'm sure you can figure out a means to read the water level to set off an alarm depending on your specific needs and setup :)
>
>
>
>On Mon, Aug 25, 2014 at 3:24 PM, Darcy Whyte <darcy at inventorartist.com> wrote:
>
>Anybody have a suggestion for a water sensor? I want to have an alarm if my radiator on my laser let's any water go...
>>
>>
>>Do I actually need a sensor or can I just use some conductors near each other assuming the impure water conducts enough?
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>>
>>
>>--
>>Darcy Whyte
>>
>>
>>Art+ inventorArtist.com | Aviation rubber-power.com
>>Contact: darcy at inventorArtist.com | 613-563-3634 by appointment (no text)
>>
>>
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