ix826@sdcc6.UUCP (tim drabik) (08/07/85)
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
rdp@teddy.UUCP (08/09/85)
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...