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 [...]
This article throws light upon the top two measures to counteract harmful effects of ultrasound. The effects are: 1. Technical Preventive Measures 2. Medical Preventive Measures. 1. Technical Preventive Measures: The prevention of the harmful effects of ultrasound and also of noise from industrial ultrasonic equipment relies on several technical preventive measures such as: a. Automatic loading and unloading of [...]
This article throws light upon the top two ways for controlling noise. The ways are: 1. Engineering Control 2. Medical Control. Way # 1. Engineering Control: The methods of controlling noise for a particular situation may depend on many factors. No simple set of rules, therefore, can be established to control noise. In order to make maximum progress in the [...]