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    • 5. 发明授权
    • RF harmonic monitor for detecting potential lightning strikes by induced
corona
    • RF谐波监视器,用于检测感应电晕的潜在雷击
    • US4823228A
    • 1989-04-18
    • US152946
    • 1988-02-08
    • Burt J. Bittner
    • Burt J. Bittner
    • B64D45/02G01R29/12G01W1/16G01R31/02H01G1/08H05F3/00
    • G01W1/16B64D45/02G01R29/12
    • An apparatus for detecting the onset of a potential lightning discharge condition monitors the odd harmonics of an RF signal radiated from a conductive probe (antenna) for fluctuations that are representative of an electrostatic condition-induced corona. In response to the such fluctuations, an output signal representative of the onset of said condition is generated. This output signal may be employed to decouple communication equipment from its antenna until the lightning condition has subsided. In accordance with a further aspect of the present invention, there is provided a device for discharging static charge accumulation from a moving body (e.g. an aircraft) which is comprised of at least one discharging conductive wick arranged to be affixed to the trailing edge of a wing, so that charges may flow from the aircraft into the wick and be discharged therefrom. To enhance discharging of the aircraft, a tuned (LC) circuit, resonant at a frequency within an RF spectrum of frequencies of corona discharge currents that flow through the wick, is coupled between the wing and the wick. Once the level of static charge build-up on the aircraft is sufficient to initiate corona discharge, current flow through the resonant circuit begins to self-oscillate and continues to `ring` after the D.C. voltage level on the body has dropped below that level at which corona was initiated.
    • 用于检测潜在的雷电放电状况的发生的装置监测由导电探测器(天线)辐射的RF信号的奇数谐波,用于代表静电状态诱发的电晕的波动。 响应于这种波动,产生代表所述条件开始的输出信号。 该输出信号可用于将通信设备与其天线分离,直到闪电状况已经消退。 根据本发明的另一方面,提供了一种用于从移动体(例如飞行器)排出静电荷积聚的装置,该装置包括至少一个排放导电芯,其布置成固定到 从而使飞机从飞机流入油缸并从中排出。 为了增强飞机的放电,调谐(LC)电路在流过芯的电晕放电电流的频率的RF频谱内的频率谐振,耦合在机翼和芯之间。 一旦航空器上的静电电荷积聚足以启动电晕放电,则通过谐振电路的电流开始自我振荡,并且在身体上的直流电压水平降至低于该水平之后继续“振铃” 哪个电晕开始了。