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Anyone know of any sensors that could be used to tell if a robot is
underwater or not? I'm working on an amphibious robot and need a way to tell
what environment I'm in at any given time. Thanks.
James
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Message has 3 Replies:
 | | Re: Underwater Sensors
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| If you had two wires hanging out, stripped at the ends, you could just check the resistance across them. Water usually has less resistance than air. (not a very cool solution but I think it would work) (...) (23 years ago, 11-Feb-01, to lugnet.robotics.handyboard)
| | | Re: Underwater Sensors
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| James, maybe a moisture sensor out of a VCR could be modified to meet your needs??? They are made to detect condensation in VCR's. but if all else fails... water is a conductor, so you could theoreticly just put two bare contacts on the outer part (...) (23 years ago, 12-Feb-01, to lugnet.robotics.handyboard)
| | | Re: Underwater Sensors
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| (...) First off, beware that ordinary tap water contains dissolved impurities and is electrically conductive. (Water itself, BTW, is actually an insulator - it's the dissolved impurities that give it conductivity). It usually isn't an issue with (...) (23 years ago, 12-Feb-01, to lugnet.robotics.handyboard)
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