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    • 10. 发明授权
    • Detecting device for destructive vibration of structures
    • 用于结构破坏性振动的检测装置
    • US4180811A
    • 1979-12-25
    • US802580
    • 1977-06-01
    • Tadashi YoshimuraTohru HanaharaToshio AbikoKazuhiro Matsuoka
    • Tadashi YoshimuraTohru HanaharaToshio AbikoKazuhiro Matsuoka
    • G01H17/00G08B13/02G08B13/04G08B13/16
    • G08B13/1654
    • A detecting device for destructive vibration of structures wherein detected vibration is converted into electric signal and an alarm is actuated when signal amount reaches at least one of a predetermined counting value and integration value is provided. The converted vibration signals are amplified, a high level signal in such amplified signals is detected and amplified by a high level detector, a high level output of this detector is counted by a counter to generate a counter output when the predetermined counting value is reached, a low level signal in the amplified signals is detected and amplified by a low level detector, a low level output of this detector is integrated by an integrating circuit to generate an integration output when the predetermined integration value is reached, and the alarm is actuated whenever at least one of the counter output and integration output is provided.
    • 一种用于结构的破坏性振动的检测装置,其中检测到的振动被转换为电信号,并且当信号量达到预定计数值和积分值中的至少一个时,提供报警。 转换的振动信号被放大,这种放大信号中的高电平信号被高电平检测器检测和放大,当达到预定计数值时,该检测器的高电平输出由计数器计数以产生计数器输出, 放大信号中的低电平信号由低电平检测器检测和放大,该检测器的低电平输出由积分电路积分,以在达到预定积分值时产生积分输出,并且每当 提供了计数器输出和积分输出中的至少一个。