Article View: sci.electronics
Article #17165Re: Waterproof Transducers/speakers
From: brian
Date: Fri, 16 Jan 1987 22:27
Date: Fri, 16 Jan 1987 22:27
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In article <172@ndmath.UUCP> milo@ndmath.UUCP (Greg Corson) writes: >Does anyone have any idea where I might be able to get a waterproof ultrasonic >transducer? The type used in fish-finders might do but I would prefer >something smaller if possible. .... Ultrasonic transducers used to be available quite cheaply as replacement parts for TV remote controls - check with a local TV shop. You can make them waterproof by putting them into thin rubber sheaths (like condoms) and sealing the cable entry point with RTV or similar material. If you are worried about loss in the air-rubber-water interface, you could fill the sheath with light mineral oil. The cashier at the drugstore probably isn't even going to give you funny looks these days.... Brian Kantor UC San Diego
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!rutgers!ames!ucbcad!ucbvax!sdcsvax!brian From: brian@sdcsvax.UUCP Newsgroups: sci.electronics Subject: Re: Waterproof Transducers/speakers Message-ID: <2474@sdcsvax.UCSD.EDU> Date: Fri, 16-Jan-87 17:27:15 EST Article-I.D.: sdcsvax.2474 Posted: Fri Jan 16 17:27:15 1987 Date-Received: Sat, 17-Jan-87 07:09:17 EST References: <172@ndmath.UUCP> Reply-To: brian@sdcsvax.UCSD.EDU (Brian Kantor) Organization: UCSD wombat breeding society Lines: 16 Keywords: waterproof, ultrasonic, speaker, transducer, microphone