watr -> air Answered
i want to see the acoustic pressure movement for simple PZT 2D DISC (tx/rx) like this example
but if i change water to air i can't see the movement of acoustic pressure but i can get the rx output. picture upside is one moment when device is in air and picture downside is when device is in water. what i want to know is that why i can't see the acoustic pressure moving by just changing the material water to air?
Thank you for your help