CEM Sound Level Meters Applied to Comprehensive Airport Noise Control
Airports are a symbol of modern cities, and airport noise is inevitable. Noise pollution has become one of the three major public hazards alongside air pollution and drinking water pollution. Airport noise is a complex problem that can only be solved by adopting comprehensive noise reduction measures. For the control of airport noise, in addition to reasonable airport site selection and in place noise reduction equipment, it is also necessary to conduct water waybill flight program testing. During the testing process, it is essential to use various equipment such as noise meters and sound level meters.
For the noise meter used in flight program testing, it is not only required to have a lightweight design that is conducive to conducting noise testing anytime and anywhere. In addition, the wide range of noise measurement and accurate testing are important indicators for the selected noise meter. The CEM brand noise meter has stable performance, is sturdy and durable, and has the advantages of fast response, high stability, and high testing accuracy. Since its launch by Guangzhou Hongcheng, it has been successfully applied to various noise control projects. In the noise control project at Baiyun New Airport, CEM noise meters have demonstrated outstanding performance in accurate measurement and real-time monitoring.
With frequency weighting characteristics of A and C, CEM noise meter can measure low-intensity noise below 55 decibels and high-intensity noise above 85 decibels, successfully measuring noise decibels at different distances from the airport and taking corresponding control measures. The decibel level of noise varies depending on the distance from the takeoff and landing site and the different stages of the aircraft's takeoff. The noise meter DT-8852 can measure noise decibels anytime and anywhere, and can be used to measure low decibel noise in level A. If the noise level is high just after takeoff, it can be measured in level C.
When conducting flight tests, the takeoff time of the aircraft is usually short, and accurate measurement of noise decibels in a short period of time requires high requirements for the noise meter. This noise meter has a response time of only 125 milliseconds, and its rapid response can accurately measure the decibel level of aircraft takeoff noise in a short period of time. In addition, this noise meter also has 32000 data storage functions, with a USB interface that can input data into a computer for real-time data analysis.
