After reading this article you will learn about Sound:- 1. Introduction to Sound 2. Propagation of Sound 3. Complex Waves 4. Octaves 5. Energy 6. Reflection 7. Decibel Scale. Contents: Introduction to Sound Propagation of Sound Complex Sound Waves Octaves Energy in Sound Waves Reflection of Sound Waves and Impedance Decibel Scale 1. Introduction to Sound: The field of noise [...]
After reading this article you will learn about Vibrations:- 1. Introduction to Vibrations 2. Sources of Vibrations 3. Measurement 4. Effects on Human Body 5. Diseases 6. Safety Measures. Contents: Introduction to Vibrations Sources of Vibrations Vibration Measurement Effects of Vibrations on Human Body Vibration Diseases Safety Measures against Vibration 1. Introduction to Vibrations: Machinery, equipment and power-driven tools, which [...]
After reading this article you will learn about Ultrasound:- 1. Meaning of Ultrasound 2. Low-Frequency Ultrasound 3. Biological Effects 4. Permissible Levels. Meaning of Ultrasound: Ultrasound is a mechanical vibration of an elastic medium in which it is propagated in the form of alternating compressions and expansions. Ultrasonic vibrations cover frequency ranges beyond about 16-20 kHz, which are not audible [...]