Ultrasonic wave characteristics
1) ultrasonic waves in the propagation, the wavelength is short, directional, energy is easy to concentrate.
2) Ultrasonic waves can be propagated in a variety of different media, and can be propagated far enough.
3) ultrasound and sound transmission medium interaction is moderate, easy to carry information about the state of the sound transmission medium diagnosis or sound transmission medium to produce the effect and treatment.
4) ultrasonic waves can be effectively propagated in gases, liquids, solids, solid melts and other media.
5) Ultrasonic waves can transmit energy.
6) Ultrasonic waves produce reflection, interference, superposition and *** vibration phenomena.
Ultrasonic wave is a form of fluctuation, it can be used as a detection and load information carrier or medium (such as ultrasound, etc.) as a diagnostic; ultrasonic wave at the same time is a form of energy, when its intensity exceeds a certain value, it can be through the interaction with the propagation of ultrasonic media, to affect, change and destroy the latter's state, nature and structure used as a therapeutic.
Expanded Information
Ultrasonic wave wavelength is shorter than the general acoustic wave, has better directionality, and can pass through the opaque material, this characteristic has been widely used in ultrasonic flaw detection, thickness measurement, ranging, remote control and ultrasonic imaging technology.
Ultrasonic imaging is the use of ultrasound to present the internal image of opaque material technology. The ultrasonic waves from the transducer through the acoustic lens focused on the opaque specimen, the ultrasonic waves from the specimen carries the information of the illuminated part, through the acoustic lens convergence in the piezoelectric receiver, the resulting electrical signal into the amplifier, the use of the scanning system can be opaque specimen image is displayed on the fluorescent screen.
Baidu Encyclopedia - Ultrasound