Discuss the production and detection of ultrasonic and ultrasonic wave and its applications.
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Bats do not have the property of vision. Then how do they navigate and locate their prey? We have read that echolocation is the technique they use. But ever wondered, what echolocation is? How does it work? In this section we shall learn in detail about echolocation and the principle of ultrasound on which it works.
Ultrasound: Definition
Sound waves with frequencies higher than the upper audible limit of human hearing are called ultrasound. The limit varies from person to person, but is approximately 20,000 hertz. The physical properties of ultrasound are similar to the normal audible sound.
The concept of ultrasound is used in many different fields such as navigation, medicine, imaging, cleaning, mixing, communication, testing etc. Even in the nature, bats and porpoises use ultrasound for the location of prey and obstacles. In the following section, we shall learn about the applications of ultrasound.
Applications of Ultrasound
Cleaning
In objects with parts that are difficult to reach, for example spiral tubes and electronic components, the process of ultrasonic cleaning is used. Here, the object is dipped in a solution of suitable cleaning material and ultrasonic waves are passed into it. As a result of this, high frequency waves are generated that cause the dirt and grease to detach from the surface.
Ultrasound: Definition
Sound waves with frequencies higher than the upper audible limit of human hearing are called ultrasound. The limit varies from person to person, but is approximately 20,000 hertz. The physical properties of ultrasound are similar to the normal audible sound.
The concept of ultrasound is used in many different fields such as navigation, medicine, imaging, cleaning, mixing, communication, testing etc. Even in the nature, bats and porpoises use ultrasound for the location of prey and obstacles. In the following section, we shall learn about the applications of ultrasound.
Applications of Ultrasound
Cleaning
In objects with parts that are difficult to reach, for example spiral tubes and electronic components, the process of ultrasonic cleaning is used. Here, the object is dipped in a solution of suitable cleaning material and ultrasonic waves are passed into it. As a result of this, high frequency waves are generated that cause the dirt and grease to detach from the surface.
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