EPT-200高頻聲發(fā)生器在航天器噪聲
環(huán)境試驗中的應用

EPT-200高頻聲發(fā)生器在航天器噪聲環(huán)境試驗中的應用

摘要: 文章針對提高目前使用的高聲強混響室-2163m³混響室聲場的高頻性能，對兩個EPT-200高頻聲發(fā)生器系統(tǒng)進行分析評估。首先采用開環(huán)噪聲試驗，驗證其性能指標是否滿足要求；然后采用閉環(huán)噪聲試驗，以考察2163m³混響室聲場的高頻性能。分析結(jié)果表明：EPT-200聲發(fā)生器性能指標滿足要求，并且提高了2163m³混響室的高頻性能。

Abstract: Two EPT-200 high frequency noise generators are assessed with respect to the enhancement of the capability of the 2163m³ reverberation chamber in the range of high frequency. Their performances are tested in open loop acoustic environments, and the capability of the 2163m³ reverberation chamber is tested in the range of high frequency in close loop acoustic environments. The results show that the performances of the two generators meet the requirements and the capability of the 2163m³ reverberation chamber in the range of high frequency is improved.

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