公开(公告)号：EP0766228A2

公开(公告)日：1997-04-02

申请号：EP95630128.7

申请日：1995-11-30

申请人： SAMSUNG HEAVY INDUSTRIES CO., LTD

发明人： Kim, Won Young ,  Kim, Yang Han ,  Kang, Seong Woo

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K2210/106 ,  G10K2210/3016 ,  G10K2210/3216 ,  G10K2210/505

摘要： A method of and an apparatus for controlling noise generated in a confined space, being capable of reducing a radiating sound pressure generated from a main noise source (3) to that of an optimal state. The method includes the steps of measuring (4) the radiating sound pressure generated from the noise source (3), and generating, from an additional sound source (1), a radiating sound pressure having the same magnitude as the radiating sound pressure generated from the noise source (3) while having a phase 180°-shifted from that of the noise source's radiating sound pressure so that the radiating sound pressures can offset each other when they are mixed. The apparatus includes an additional sound source (1) installed in the confined space, an intensity converter (11) for collecting and measuring sound pressure signals respectively generated from the noise source (3) and the additional sound source (1), and a microcomputer for applying, to the additional sound source (1), a control signal for reducing the noise on the basis of the sound pressure signals measured by the intensity converter (11).

摘要翻译： 一种用于控制在密闭空间中产生的噪声的方法和装置，能够将从主噪声源（3）产生的辐射声压降低到最佳状态。 该方法包括以下步骤：测量（4）从噪声源（3）产生的辐射声压，以及从附加声源（1）产生具有与从...产生的辐射声压相同的幅度的辐射声压 噪声源（3），同时具有与噪声源的辐射声压的相位180°的相位，使得辐射声压在混合时彼此抵消。 该装置包括安装在密闭空间中的附加声源（1），用于收集和测量从噪声源（3）和附加声源（1）分别产生的声压信号的强度转换器（11） 用于向附加声源（1）施加用于基于由强度转换器（11）测量的声压信号来降低噪声的控制信号。