View Full Version : ultrasonic rangers (urgent)

01-25-2006, 05:22 PM
hi, i am currently working on an ultrasonic range finder project. i wanted to know which ultrasonic transducer or tweeter i should use to get a range of around 8-10m (max). plz dont recommend the srfo4 devantech module. i am looking for the 'transducers'. also will the transducers act as transmitters & recievers, both, or are just 1 way. finally, can i use normal audio tweeters to work at around +30khz freq & will these also act as tx & rx both or just 1 way. need help, plz reply fast.

01-25-2006, 10:42 PM
hey dude as far as i know here in india u wil find the same make of transducers everywhere. i think with proper circuitry u will be able to get a good range of atleast 4-5m.i came accross a link in the forums posts abt how to make a ultrasonic range finder.the tranducers pair comes around 120-150 a pair.both the tx-rx are different devices.just search google u will find plenty of examples.