Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/3/84; site teddy.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!harvard!talcott!panda!teddy!rdp From: rdp@teddy.UUCP Newsgroups: net.wanted,net.audio Subject: Re: Wanted: 50kHz, 100W supertweeter or industrial transducer Message-ID: <1121@teddy.UUCP> Date: Fri, 9-Aug-85 06:12:18 EDT Article-I.D.: teddy.1121 Posted: Fri Aug 9 06:12:18 1985 Date-Received: Mon, 12-Aug-85 02:40:30 EDT References: <2176@sdcc6.UUCP> Reply-To: rdp@teddy.UUCP (Richard D. Pierce) Organization: GenRad, Inc., Concord, Mass. Lines: 17 Keywords: High-powered ultrasound Xref: linus net.wanted:6133 net.audio:4876 In article <2176@sdcc6.UUCP> ix826@sdcc6.UUCP (tim drabik) writes: >I'm looking for a high-powered ultrasonic transducer impedance-matched >to the atmosphere (not to a steel bucket). Do some of the high-end >tweeter elements operate reasonably efficiently out to 40 or 50 kHz? >Any clues on achieving 50W or so of acoustic power at 40 kHz cheaply >would be greatly appreciated. I'll even summarize if I get any >interesting suggestions. > > Tim Drabik > UCSD Applied Physics > ...sdcc6!ix826 There are several manufacturers of piezo-electric "tweeters" that might fit the bill. They are extreme rugged and may well have the bandwidth you seek. Additionally, I have seen adds in EDN and such for piezo- electric polymer films that are claiming very wide bandwidths and power handling capabilities. Sorry, but I can't remember names...