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            Active Noise Control

            Active Noise Control

            Active Noise Control is an innovative and exceptionally efficient technology that in various applications is an excellent alternative to traditional solutions to industrial noise, such as walls and housings. Anti-noise derives its operation from the knowledge that sound vibrations can cancel themselves out. In other words, combating sound with sound. The technology has existed for several decades, but has only recently successfully been used in industrial applications. Merford offers you a total anti-noise solution for situations where monotonous noise is a disruptive factor, such as transformers.

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            An anti-noise set-up consists of various speakers, each with its own microphone. Each speaker is a standalone unit that due to innovative software, in virtually real-time, translates the input from the microphone into a noise cancellation signal that at various frequencies reduces the noise level. The set-up requires little room and as a result can be applied in most existing situations.

            Anti-noise applied to transformers
            Transformers produce a characteristic monotonous humming sound that can be experienced as a nuisance when the transformer is located near homes or businesses. A situation of that nature lends itself very well to the application of anti-noise. Merford has successfully completed various transformer projects thanks to this technology. The software with which each speaker is equipped makes it possible to analyse the sound remotely. As a result we know that the systems work flawlessly and that they in fact produced a reduction in noise pollution for surrounding residents.


            • Transformers
            • Compressors
            • Low frequency machines


            • Westland Infra

              在荷蘭波爾代克小鎮,由Westland Infra Netbeheer所擁有的一座變電站,最近安裝了一套主動降噪(ANR)系統。這套系統採用的技術,也被稱為抗雜訊。有計劃在靠近變電站的地方興建新的房屋,所以變電站必須滿足一定的雜訊要求。Merford接到請求,要找到一種方法,在離變電站21米的距離,要建造房屋的地方,將雜訊的污染水準降低到40分貝。於是一個主動降噪的解決方案研製出來,安裝在變電站內,雜訊排放量降低到了所要求的水準。