vsmGuy said:Anyone implemented parts fo this excellent project ?
There are ultrasound sensors that work underwater, you should ask in your local store.inifinitrix said:what ultrasonic sensor that i should use for underwater application for detecting obstacle?
Added after 12 minutes:
is the output of the sensor in analog? or digital... somebody suggest me what sensor that i should use..thanx..
saeed_pk said:Hi all,
I have read all of your replies involving ultrasonics, ultrasonics are tricky one to handle because speed of sound varies with temperature, humidity and if in any other medium then so a compensation is necessary the difference between ordinary and underwater ultrasonics is of frequency.
any one of you worked on Doppler's shift in ultrasonics.
I am working on a project in which i have to analyse the frequency distortion of an ultrasonic wave when passed through different gemstones it is beneficial in testing the quality of those stones
if any one has ideas please share.
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