PHY10 Sound Field Characteristics

Sound Field Characteristics Investigation of the sound field of an ultrasonic probe in water using a hydrophone In the experiment, the sound field of an ultrasonic probe in water is investigated by determining the sound pressure distribution in axial and lateral direction using a hydrophone and characterizing sound field quantities are discussed. Keywords: sound field, near field, far field, focus zone, sound pressure, sound pressure distribution, sound speed, sound intensity The area in a medium in which sound waves propagate is called the sound field. Depending on the material and the sound generation or coupling, it has a specific geometry, significantly limits the lateral resolution of an ultrasound probe and can influence sound attenuation. The sound field can be described by sound field variables such as sound pressure and sound velocity or sound energy variables such as sound energy and sound intensity. Using a hydrophone, the sound field in a liquid can be examined by determini