epilot
Member
Hi friends.
Today when I was reading a paper on the net I saw a small word obout sonar and radar beamforming, then I did a search via google. I noticed that this job is down with "delay" and phase shifting of acoustic beams,
even I saw a thread here;that a guy suggested to another to use this way and use 10 ultrasonic transducers to avoid direct rotating his trasducers.
Well after reading some words in the field; I am not sure how making delay or phase shifting can curve abeam( like what a lens does for one or more light beams)!!!
My idea is that a device that makes a delay or phase shifting does not do a such job, but it delays the time of output beam, if my guess is right, then how it acts like a lens?!
Thanks for any input
Today when I was reading a paper on the net I saw a small word obout sonar and radar beamforming, then I did a search via google. I noticed that this job is down with "delay" and phase shifting of acoustic beams,
even I saw a thread here;that a guy suggested to another to use this way and use 10 ultrasonic transducers to avoid direct rotating his trasducers.
Well after reading some words in the field; I am not sure how making delay or phase shifting can curve abeam( like what a lens does for one or more light beams)!!!
My idea is that a device that makes a delay or phase shifting does not do a such job, but it delays the time of output beam, if my guess is right, then how it acts like a lens?!
Thanks for any input