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> Mechanically, How Does A Sonar Transducer Work?, mechanical function of sonar transducer?
conk
Posted: September 24, 2008 05:11 pm
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I understand what a sonar transducer does to measure water depth. What I need is a schematic or description of the inner workings of the sonar transducer so I can understand mechanically how the ping is converted from an electronic impulse to a sound wave and then back again with the echo. Can someone please direct me to some detailed technical specifications on an underwater sonar transducer?
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tekwiz
Posted: September 24, 2008 07:59 pm
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Sonar transducers are nothing more than modified piezo speakers. Look up the piezo effect, & it's applications for ultrasonic transducers. Basically, the piezo effect is a change in shape that occurs when an electric field is applied to certain materials, like crystals or special ceramics. This shape change converts electrical signals to physical motion. cool.gif


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CWB
Posted: September 25, 2008 02:35 am
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google "barium titanate transducer" .


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GPG
Posted: September 25, 2008 05:20 am
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There are also magnetostrictive types. Google
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