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如何消除气流的影响是管道有源降噪的难点之一．本文分析了湍流对有源降噪系统的影响，并开发了一种抗湍流传声器探管．最后在某种通风系统的进气管段进行了降噪试验，气流速度为20m／s时，在60－630Hz频带取得了15dB（A）的降噪效果．
How to eliminate the influence of airflow is one of the difficulties of active noise reduction in pipeline. This paper analyzes the effect of turbulence on an active noise reduction system and develops a turbulent microphone probe. Finally, the noise reduction test was carried out on the inlet pipe section of a certain ventilation system. When the air flow speed was 20m / s, a noise reduction effect of 15dB (A) was achieved in the frequency band of 60-630Hz.