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From: paulc@hp-lsd.COS.HP.COM (Paul Carroll)
Newsgroups: comp.robotics
Subject: Re: dirt cheap immersion sensor?
Message-ID: <24270004@hp-lsd.COS.HP.COM>
Date: 29 Nov 90 16:56:29 GMT
References: <1990Nov24.211134.28944@uunet!unhd>
Organization: HP Logic Systems Division - ColoSpgs, CO
Lines: 19

> I need a cheap, fast, and small sensor to detect when its been submerged
> in (fresh) water.  I assume that this sort of thing exists for turning
> on automatic bilge pumps.  We need one for our EAVE vehicle, but I was
> also considering an automatic waterbowl filler for my cats...
> 
> -Roger

	Okay, I'll bite.
	What's wrong with a simple float attached to a lever or string?
	This would work if some part is going to be underwater enough
	for the float to be moved.  It would be important to make sure that
	the float is able to move freely.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+	Paul Carroll			"Schizophrenia                       +
+	HP Logic Systems Division	    And I thought I was really sick  +
+	paulc%hp-lsd@hplabs.hp.com	       I am beside myself."          +
+					                     -- Spiffi       +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


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