Definition of Self-focusing transducers
Acoustic waves emitted by ultrasonics transducer crystals exhibit a property known as self-focusing (or natural focusing). Note that this is distinct from the electronically controlled focusing employed in diagnostic ultrasound devices which employ arrays of transducers. The self-focusing effect exists even for a single crystal.
Self-focusing refers to the narrowing of the ultrasonic beam in the near-field. The effect occurs because,
if the ultrasound wave generated by the crystal is coherent,
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Frequently asked questions
What is Self-focusing transducers?
Acoustic waves emitted by ultrasonics transducer crystals exhibit a property known as self-focusing (or natural focusing).