With the increasingly prominent environmental problems, the prevention and control of noise pollution has also been mentioned on the agenda, so a series of noise meters came into being.
But I believe that many people are still unclear about its working principle, and some people even doubt the effectiveness of the digital noise meter, so let's start with the characteristics of its process technology.
Main technical indicators of digital noise meter:
The calculation method complies with the requirements of "Calculation Method of Attenuation of Outdoor Sound Propagation" (ISO 9613-2:1996) and "Acoustic Environment of Environmental Impact Assessment Technical Guidelines" (HJ 2.4-2009), considering sound diffraction, reflection and refraction algorithms; The noise prediction accuracy in the direct sound region is not less than 3 dB(A).
Principle of digital sound level meter:
It is the most basic and most commonly used instrument in acoustic measurement, and is widely used to measure the sound pressure level or sound level of sound.
The digital sound level meter adds digital digital functions to the ordinary sound level meter, which makes the operation simpler and easier.
It is not only used in acoustic and electroacoustic measurement, but also has been widely used in various fields such as machine manufacturing, architectural design, transportation, environmental protection, medical and health, and national defense engineering, and has become an acoustic measurement instrument that almost all departments must have.
Digital sound level meter technical features:
Comprehensive computer simulation, database technology, Internet of Things, cloud computing, etc., relying on scientific acoustic prediction models, to achieve 3D visualization of noise map drawing;
Accurately predict the change trend of environmental noise in the area, control the quality of the acoustic environment, and provide strong support for environmental noise management.
