Ultrasonic
Ultrasonic
Ultrasonic (/ʌltrəˈsɒnɪk/), derived from the Latin words 'ultra' meaning 'beyond' and 'sonic' meaning 'sound', refers to sound waves with frequencies higher than the upper audible limit of human hearing. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy, young adults. Ultrasonic devices are used in many different fields, including medicine, industry, and other areas.
Medical Use
In the field of medicine, ultrasonic waves are used in various diagnostic and therapeutic procedures. One of the most common uses is in ultrasound imaging, a technique that uses the reflection of ultrasonic waves to create images of the internal structures of the body. This is often used in obstetrics to monitor the development of a fetus, but can also be used to diagnose conditions in many parts of the body.
Ultrasonic waves are also used in ultrasonic surgery, a type of minimally invasive surgery that uses ultrasonic vibrations to cut through tissue. This can be used in a variety of surgical procedures, including cataract surgery and liposuction.
Industrial Use
In industry, ultrasonic waves are used in a variety of applications, including cleaning, measurement, and quality control. For example, ultrasonic cleaning uses high frequency sound waves to remove dirt and other contaminants from objects. Ultrasonic testing is a non-destructive testing method that uses ultrasonic waves to detect flaws in materials.
Related Terms
- Sonography: The use of ultrasonic waves to produce images of the inside of the body.
- Sonar: A system that uses transmitted and reflected ultrasonic waves to detect and locate objects underwater.
- Ultrasonography: The process of using ultrasound to visualize internal body structures.
External links
- Medical encyclopedia article on Ultrasonic
- Wikipedia's article - Ultrasonic
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