W
[email protected]
- Jan 1, 1970
- 0
Is there any way of producing ultrasound without applying a current
through a crystal (such as a mechanical method). For example, if you
move an old door it can creak due to the vibrations produced, but could
a mechanical movement such as this produce an ultrasound?
through a crystal (such as a mechanical method). For example, if you
move an old door it can creak due to the vibrations produced, but could
a mechanical movement such as this produce an ultrasound?