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Basic research on sound waves2012-06-07
Sound wave is one of the categories of sound, belonging to mechanical waves. Sound wave refers to a longitudinal wave that can be felt by the human ear, with a frequency range of 16Hz-20KHz. When the frequency of sound waves is below 20Hz, it is call…
The ultrasound effect has been widely used in practice2012-06-07
The wavelength of ultrasonic waves is shorter than that of ordinary sound waves, with good directionality and the ability to penetrate opaque materials. This characteristic has been widely used in ultrasonic testing, thickness measurement, distance m…
Ultrasonics specialized in the study of ultrasound2012-06-07
Ultrasound effect: When ultrasound propagates in a medium, the interaction between ultrasound and the medium causes physical and chemical changes in the medium, resulting in a series of mechanical, thermal, electromagnetic, and chemical ultrasound ef…
Ultrasound technology is playing a huge role in the medical field2012-06-06
In recent years, scientists have developed color coded Doppler systems, which can display the direction of blood flow in different colors under the guidance of anatomical landmarks in echocardiography, and the depth of color represents the flow veloc…
There are different forms of ultrasound diagnostic methods2012-06-06
Doctors use different forms of ultrasound diagnostic methods, which can be divided into four categories: A-type, B-type, M-type, and D-type.
Medical applications of ultrasound2012-06-06
Doctors use different forms of ultrasound diagnostic methods, which can be divided into four categories: A-type, B-type, M-type, and D-type.
Principle of Ultrasonic Cleaning2012-06-06
The principle of ultrasonic cleaning is that the high-frequency oscillation signal emitted by the ultrasonic generator is converted into high-frequency mechanical oscillation through a transducer and propagated to the medium.
The main parameters of ultrasound2012-06-06
Ultrasonic frequency: F ≥ 20KHz (in practical applications, sound waves with F ≥ 15K are usually referred to as ultrasonic waves due to their similar effects);
Ultrasonics for studying ultrasound2012-06-05
The propagation laws of ultrasound in media, such as reflection, refraction, diffraction, and scattering, are not fundamentally different from those of audible sound waves.
Is there a pattern to follow in ultrasound?2012-06-05
Due to the high frequency of ultrasound, its power is very high compared to general sound waves.
The difference between sound waves and ultrasound2012-06-05
At present, the frequency range used for abdominal ultrasound imaging is between 2-5 megahertz, commonly ranging from 3-3.5 megahertz (1 vibration per second is 1Hz, 1 megahertz=10 ^ 6Hz, which means 1 million vibrations per second, and the audible f…
Scientists' research on ultrasound2012-06-05
Theoretical studies have shown that under the same amplitude conditions, the energy of an object's vibration is directly proportional to the vibration frequency. When ultrasonic waves propagate in a medium, the frequency of particle vibration in…
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