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    • 10. 发明公开
    • SENSOR FOR AIRBORNE SHOOTER LOCALIZATION SYSTEM
    • 传感器FÜREIN系统ZUR LOKALISIERUNG VONSCHÜTZENIN DER LUFT
    • EP2297592A4
    • 2015-06-03
    • EP09746937
    • 2009-05-12
    • RAYTHEON BBN TECHNOLOGIES CORP
    • BARGER JAMES ESTANLEY JOHN
    • G01S3/808B64C27/04B64D7/00F41H11/00F41H13/00G01H11/00G01H11/06G01S3/86G10K11/00
    • B64D7/00B64C27/04F41H11/00F41H13/00G01H11/06G01S3/808G01S3/86G10K11/002G10K11/004H04R2410/00
    • A sensor assembly suitable for use in an airborne shooter localization system. The sensor assembly has a pressure sensor subassembly with a pressure transducer positioned to detect pressure variations associated with a shock wave from a passing projectile or the muzzle blast following the shock wave. To substantially increase the signal to noise ratio for measurements of the shock wave, the pressure sensor subassembly attenuates pressure fluctuations triggered by turbulent airflow over the surface of the subassembly more than it attenuates the shock wave. This preferential attenuation is provided by separating the pressure transducer from the surface of the sensor assembly by a cavity large enough that the pressure fluctuations are substantially attenuated as they propagate across the cavity. Additionally, features of a housing that holds the pressure sensor subassembly facilitate use on an aircraft. Those features include flexibility that allows the sensor assembly to conform to curved surfaces, a skin that provides resistance to environmental conditions and allows the sensor assembly to be attached with an adhesive, and a body region that provides high vibrational impedance to prevent low frequency mechanical vibrations from being coupled to the pressure transducer.
    • 适用于机载射手定位系统的传感器组件。 传感器组件具有压力传感器子组件,压力传感器定位成用于检测与冲击波之后的经过的射弹或枪口爆炸的冲击波相关联的压力变化。 为了大大增加用于冲击波测量的信噪比,压力传感器子组件衰减了比组件表面上的湍流气流触发的压力波动更多的是衰减冲击波。 通过将压力传感器与传感器组件的表面分开一个足够大的空腔,使压力波动在其穿过空腔传播时基本上衰减而提供这种优先衰减。 此外,保持压力传感器子组件的壳体的特征便于在飞机上使用。 这些特征包括灵活性,其允许传感器组件符合弯曲表面,提供对环境条件的抵抗力并允许传感器组件用粘合剂附着的皮肤,以及提供高振动阻抗以防止低频机械振动的身体区域 从耦合到压力传感器。