Scope of application of the noise measuring instruments
Noise meter, also called decibel meter and sound level meter, is a commonly used noise measuring instrument.
Scope of application
Since the noise meter is mainly used for environmental noise, it is suitable for noise detection and noise census in factories, offices, traffic roads, airports, audio, family, farms and other places.
Noise meter can be applied to household appliances noise monitoring, home audio and video sound testing, residential neighbourhood environmental noise, colleges and universities laboratory, enterprise plant noise testing and urban environmental protection and other fields of noise monitoring.
With the development of modern industry, environmental pollution is also produced, noise pollution is a kind of environmental pollution, has become a major hazard to human beings. Traffic noise, construction noise, industrial noise, etc., affecting people's normal study, life and rest. Household appliances, audio equipment and other noise is not high, but because of the close contact with people's daily life, so that people can not be quiet when resting, especially annoying, but also very easy to cause disputes between neighbours.
The standards of various countries and regions are not entirely consistent, and the International Organisation for Standardisation (ISO) proposed in 1971 a standard for permissible environmental noise that stipulates that the permissible sound level for indoor environmental noise in residential areas is 35-45dB.
