Acoustic power in the context of noise measurement
Different devices work in our house. Most of them make a noise that more or less annoy the user. The noise created by machines is determined by legislative requirements that say that the machine should be designed so that the risk associated with the radiation of noise is limited to a minimum possible level. Manufacturers are required to provide information about the noise emissions of this product. One of the elements of noise measurement, in addition to the level of sound pressure, is the level of sound power. What is acoustic power? What is acoustic power?
Sound power is a value that cannot be measured directly. This is the amount of energy that the machine emits. Sound power is a characteristic of a sound source that does not depend on external factors, such as the distance from the sound source or the environment. This is a constant value characterizing this device regardless of its location. Various measuring devices are used to measure the sound power. Methods of measurement of acoustic power
There are two methods of measuring sound power - a method based on measuring the level of sound pressure is used by a reference source of sound, multi -channel measuring systems, noise meter, standard measuring microphones and other devices, for example, acoustic hemispheres. The second method is based on measuring the sound intensity, for these measurements we use an intensity sensor with paired measuring microphones along with a noise meter equipped with appropriate software. The intensive method is used in difficult environmental conditions, for example, with a strong background or poor acoustics in the tested room. The easiest way to measure is to use a ready -made measuring system that allows you to use a standard smartphone as a control and display device. We know what free spins casino promo codes are and how to activate them