bivanus
New Member
Yes, believe it or not these is what my teacher asked me to do for my year project.I am a student in electronics and these would be my last year project.Cool right? Beeep :wrong! I'm not a begginer in electronics but...high power ultrasonics... :roll: :cry:
Anyway I got to work it out.Already learned some needed schematics and materials:
*ultrasonic transducers
???can i use buzzers, where can i get some piezo disks and/or hou much do they cost , anyone has something in the junkbox
*tone/pulse generator in the range between 25khz to 44khz
??? square wave, sin wave or what...
*driving unit for piezo thingy's
???high impedance power amp or something else like a power multivibrator
*rezonant horns(been using some inverted tweeter hornes but they don't realy do the job)
???formulae,building or adapting hints
*piezomagnetics might be the way but the transducers are realy expensive
???hints on hou to build one from a ferrite torrus and coils
Anyway I got to work it out.Already learned some needed schematics and materials:
*ultrasonic transducers
???can i use buzzers, where can i get some piezo disks and/or hou much do they cost , anyone has something in the junkbox
*tone/pulse generator in the range between 25khz to 44khz
??? square wave, sin wave or what...
*driving unit for piezo thingy's
???high impedance power amp or something else like a power multivibrator
*rezonant horns(been using some inverted tweeter hornes but they don't realy do the job)
???formulae,building or adapting hints
*piezomagnetics might be the way but the transducers are realy expensive
???hints on hou to build one from a ferrite torrus and coils