Introduction to the Application Characteristics of Digital Sound Level Meters
With the increasingly prominent environmental issues, the prevention and control of noise pollution has also been put on the agenda, and a series of noise meters have emerged.
But I believe many people are still unclear about its working principle, and some even doubt the effectiveness of digital noise meters. 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 Methods for Attenuation of Outdoor Sound Propagation" (ISO 9613-2:1996) and "Technical Guidelines for Environmental Impact Assessment - Acoustic Environment" (HJ 2.4-2009), considering sound diffraction, reflection, and refraction algorithms; The prediction accuracy of direct sound area noise shall not be less than 3 dB (A).
Principle of digital sound level meter:
It is the most basic and commonly used instrument in acoustic measurement, widely used to measure the sound pressure level or sound level of sound.
A digital sound level meter adds digital functions to a regular sound level meter, making operation simpler and more convenient.
It is not only applied in acoustics and electroacoustic measurements, but has also been widely used in various fields such as machine manufacturing, architectural design, transportation, environmental protection, medical and health care, and national defense engineering, becoming an acoustic measurement instrument that almost all departments must possess.
Technical characteristics of digital sound level meter:
By integrating computer simulation, database technology, Internet of Things, cloud computing, etc., and relying on scientific acoustic prediction models, 3D visualization of noise map drawing can be achieved;
Accurately predicting the trend of environmental noise changes in the region, controlling the quality of the acoustic environment, and providing strong support for environmental noise management.
