Directional sonar apparatus
    7.
    发明授权
    Directional sonar apparatus 失效
    方向声音装置

    公开(公告)号:US3864666A

    公开(公告)日:1975-02-04

    申请号:US36932973

    申请日:1973-06-12

    Inventor: DOUGLAS GEORGE R

    Abstract: The apparatus, typically a homing torpedo, includes an array of main directional sonar electroacoustic transducers, typically Tonpiltz oscillators, so distributed as to have directional response to signals and connected to generate commands to control the apparatus. The response pattern of this array alone has a main lobe and side lobes, the response to signals along the direction of the main lobe being substantially higher than to signals along the direction of the side lobe. An auxiliary predominately omnidirectional electroacoustic transducer (a hydrophone) is spaced of the order of one wavelength of the signal outwardly from a central main transducer and the combined response of this auxiliary transducer and central main transducer is compared to the total response from the array. If the combined response exceeds the total response, the control commands for the signals are suppressed and if the total response exceeds the combined response the control commands for the signals are enabled to control the apparatus. There is also apparatus including an array of main electroacoustic transducers and an auxiliary predominately omnidirectional electroacoustic transducer associated with, and spaced outwardly from, each main transducer. Each pair of main transducers and auxiliary transducers are so spaced and their response so combined as to suppress side lobes in the reception pattern of the apparatus.

    Abstract translation: 该装置,通常是归巢鱼雷,包括主要定向声纳电声换能器阵列,通常为Tonpiltz振荡器,其被分布成具有对信号的方向响应并被连接以产生用于控制装置的命令。 该阵列单独的响应图案具有主瓣和旁瓣,沿主瓣方向对信号的响应基本上高于沿着旁瓣方向的信号。 辅助主要是全向电声换能器(水听器)从中心主换能器向外间隔了信​​号一个波长的数量级,并且将该辅助换能器和中央主换能器的组合响应与来自阵列的总响应进行比较。 如果组合响应超过总响应,则抑制信号的控制命令,并且如果总响应超过组合响应,则使信号的控制命令能够控制该装置。

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