公开(公告)号：US4180811A

公开(公告)日：1979-12-25

申请号：US802580

申请日：1977-06-01

申请人： Tadashi Yoshimura ,  Tohru Hanahara ,  Toshio Abiko ,  Kazuhiro Matsuoka

发明人： Tadashi Yoshimura ,  Tohru Hanahara ,  Toshio Abiko ,  Kazuhiro Matsuoka

IPC分类号： G01H17/00 ,  G08B13/02 ,  G08B13/04 ,  G08B13/16

CPC分类号： G08B13/1654

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4171490A

公开(公告)日：1979-10-16

申请号：US846135

申请日：1977-10-27

申请人： Kuniharu Tatetsuki ,  Tohru Hanahara ,  Takeshi Nakano ,  Kazushige Morisue

发明人： Kuniharu Tatetsuki ,  Tohru Hanahara ,  Takeshi Nakano ,  Kazushige Morisue

IPC分类号： G08B17/107 ,  G01N21/28

CPC分类号： G08B17/107

摘要： A detection signal processing circuit for photoelectric smoke detectors reliably stable with respect to external noise is provided. Light receiving section of the detector for receiving light emitted intermittently from light emitting section and scattered by smoke particles comprises a light receiving element, a condenser charged depending on intermittent scattered light intensity received by the element and of a value over a predetermined level, and an output circuit providing an output to a following operation means only when charge amount of the condenser has reached a predetermined value. Optimumly, the predetermined value of the condenser charge is achieved when at least two or more of the intermittent scattered light are received continuously.

摘要翻译： 提供了一种用于相对于外部噪声可靠稳定的光电式烟雾探测器的检测信号处理电路。 用于接收从发光部分间歇发射并由烟粒子散射的光的检测器的光接收部分包括光接收元件，根据由元件接收的间歇散射光强度和超过预定水平的值而充电的聚光器，以及 输出电路仅在电容器的充电量达到预定值时向后续操作装置提供输出。 当连续地接收间歇散射光中的至少两个以上时，最佳地实现冷凝器电荷的规定值。