Moving object detecting device
    2.
    发明授权
    Moving object detecting device 失效
    移动物体检测装置

    公开(公告)号:US4961039A

    公开(公告)日:1990-10-02

    申请号:US174169

    申请日:1988-03-28

    IPC分类号: G01S13/56 G01S15/52

    CPC分类号: G01S13/56 G01S15/523

    摘要: A moving object detecting device is arranged for detection in time series of an angle of respective received-wave signals at every moment with respect to basic axes in a vector plane, the basic axes being a pair of intermediate signals obtained by converting frequency deviation components of the received-wave signals responsive to incident on a wave receiver of reflected waves of radiated energy by a wave radiator from an object moving in a supervisory zone. Such moving object can be thereby detected at a high precision, irrespective of how quickly or slowly it moves within the zone.

    摘要翻译: 移动物体检测装置被布置成以相对于矢量平面中的基本轴的每个时刻的各个接收波信号的角度的时间序列进行检测,基本轴是通过将矢量平面中的频率偏差分量 所述接收波信号响应于在波导管中通过波浪辐射器从在监控区域中移动的物体入射到辐射能量的反射波。 因此,可以高精度地检测这样的运动物体,而不管其在该区域内如何快速或缓慢地移动。

    Ultrasonic wave echo-type switch
    3.
    发明授权
    Ultrasonic wave echo-type switch 失效
    超声波回波型开关

    公开(公告)号:US4131872A

    公开(公告)日:1978-12-26

    申请号:US749072

    申请日:1976-12-09

    IPC分类号: G01S15/52 G01S9/66

    CPC分类号: G01S15/526

    摘要: An echo-type switch using ultrasonic wave for detecting any object present in a predetermined area with reliable operation irrespective of environmental variations or foreign waves. After the wave is once radiated, the detection is suspended for a fixed time period T.sub.1 and presence or absence of reflected wave received is confirmed during another period T.sub.2. If reflected wave is received in the period T.sub.2, this period is again set for further confirming if the received wave continues and, until absence of the received wave is confirmed after several times of the waves received during the period T.sub.2, next ultrasonic wave is not radiated. Only in case the reflected wave received continues for more than two of the periods, the presence of the object to be detected in the area is indicated.

    摘要翻译: 一种使用超声波的回波型开关,用于以可靠的操作检测存在于预定区域中的任何物体,而与环境变化或外来波无关。 在波被一次辐射之后,检测被暂停一段固定的时间段T1,并且在另一时段T2期间确认接收到的反射波的存在或不存在。 如果在时段T2中接收到反射波,则该周期再次被设置用于进一步确认接收的波是否继续,并且直到在时段T2期间接收的几次波之后确认接收波的不存在,则下一个超声波不是 辐射。 只有在收到的反射波持续超过两个周期的情况下,才指示在该区域中要检测的对象的存在。

    Electrostatic transducer
    5.
    发明授权
    Electrostatic transducer 失效
    静电传感器

    公开(公告)号:US4796725A

    公开(公告)日:1989-01-10

    申请号:US129969

    申请日:1987-12-04

    申请人: Susumu Katayama

    发明人: Susumu Katayama

    IPC分类号: G01H11/06 H04R19/00

    CPC分类号: H04R19/00 G01H11/06

    摘要: An electrostatic transducer which includes a vibrating membrane provided between a fixed electrode and a movable electrode to which electric signals are applied. The transducer further includes a plurality of depressions provided concentrically with a center of the fixed electrode in a surface of the fixed electrode which is in contact with the vibrating membrane and a plurality of through openings corresponding with the plurality of depressions further provided in the fixed electrode whereby the resonant frequency of the electrostatic transducer is reduced and the conversion efficiency of electric signals to sound pressure is increased.

    摘要翻译: 一种静电换能器,包括设置在施加电信号的固定电极和可动电极之间的振动膜。 换能器还包括与固定电极的中心同心地设置在与振动膜接触的固定电极的表面中的多个凹部,以及与固定电极中还设置的多个凹部对应的多个通孔 从而降低了静电换能器的谐振频率,提高了电信号对声压的转换效率。

    Ultrasonic wave horn
    6.
    发明授权
    Ultrasonic wave horn 失效
    超声波喇叭

    公开(公告)号:US4104610A

    公开(公告)日:1978-08-01

    申请号:US749287

    申请日:1976-12-10

    IPC分类号: G10K11/28 H04B11/00

    CPC分类号: G10K11/28

    摘要: An ultrasonic wave horn adaptable to any desired radiation pattern varying in length-to-breadth ratio of intended detecting area. The horn comprises at least a horn body having gradually expanding caliber from a constricted throat to an expanded opening which is of a flat shape with an unequal length-to-breadth ratio, and an ultrasonic wave generating source of which wave emitting side is disposed adjacent the constricted throat of the horn body, wherein the constricted throat of the horn body is also of a flat shape having an unequal length-to-breadth ratio and the respective major axes of the flat-shaped constricted throat and expanded opening of the horn body are in a relation of intersecting each other at right angles.

    摘要翻译: 一种超声波波喇叭,其适用于任何期望的辐射图案,其在预期检测区域的长度与宽度比之间变化。 喇叭包括至少一个喇叭体,其具有从狭窄的喉部逐渐扩大口径到具有不等长度与宽度比的平坦形状的扩张开口,以及波长发生侧邻近设置的超声波发生源 喇叭体的收缩喉部,其中喇叭体的收缩喉部也是具有不等长度与宽度比的扁平形状,并且扁平形收缩喉部的各个长轴和喇叭体的扩大开口 呈直角相交的关系。

    Moving object detecting apparatus
    7.
    发明授权
    Moving object detecting apparatus 有权
    移动物体检测装置

    公开(公告)号:US08218395B2

    公开(公告)日:2012-07-10

    申请号:US13328086

    申请日:2011-12-16

    IPC分类号: G01S15/58

    摘要: A moving object detecting apparatus includes: a transmitting/receiving unit for radiating an ultrasonic wave and receiving a reflective wave reflected from an object present in a monitoring space; a phase detection circuit for mixing reference signals with a reflective signal and obtaining a pair of Doppler signals each having an amplitude depending on a phase difference from the reference signal, each of the Doppler signals having a different phase from each other; a rotation angle calculation unit for calculating a rotation angle; a cumulative addition unit for accumulating the rotation angle; and a comparison unit for comparing the accumulated rotation angle with a threshold value. In the moving object detecting apparatus, a single ultrasonic vibrator is commonly used in the transmitting unit and the receiving unit.

    摘要翻译: 移动物体检测装置包括:发射/接收单元,用于发射超声波并接收从存在于监视空间中的物体反射的反射波; 相位检测电路,用于将参考信号与反射信号混合并获得每个具有取决于与参考信号的相位差的幅度的多普勒信号,每个多普勒信号彼此具有不同的相位; 用于计算旋转角度的旋转角度计算单元; 用于累积旋转角度的累积加法单元; 以及用于将累积旋转角度与阈值进行比较的比较单元。 在移动物体检测装置中,在发送单元和接收单元中通常使用单个超声波振动器。

    MOVING OBJECT DETECTING APPARATUS
    9.
    发明申请
    MOVING OBJECT DETECTING APPARATUS 有权
    移动物体检测装置

    公开(公告)号:US20120087210A1

    公开(公告)日:2012-04-12

    申请号:US13328086

    申请日:2011-12-16

    IPC分类号: G01S15/58

    摘要: A moving object detecting apparatus includes: a transmitting/receiving unit for radiating an ultrasonic wave and receiving a reflective wave reflected from an object present in a monitoring space; a phase detection circuit for mixing reference signals with a reflective signal and obtaining a pair of Doppler signals each having an amplitude depending on a phase difference from the reference signal, each of the Doppler signals having a different phase from each other; a rotation angle calculation unit for calculating a rotation angle; a cumulative addition unit for accumulating the rotation angle; and a comparison unit for comparing the accumulated rotation angle with a threshold value. In the moving object detecting apparatus, a single ultrasonic vibrator is commonly used in the transmitting unit and the receiving unit.

    摘要翻译: 移动物体检测装置包括:发射/接收单元,用于发射超声波并接收从存在于监视空间中的物体反射的反射波; 相位检测电路,用于将参考信号与反射信号混合并获得每个具有取决于与参考信号的相位差的幅度的多普勒信号,每个多普勒信号彼此具有不同的相位; 用于计算旋转角度的旋转角度计算单元; 用于累积旋转角度的累积加法单元; 以及用于将累积旋转角度与阈值进行比较的比较单元。 在移动物体检测装置中,在发送单元和接收单元中通常使用单个超声波振动器。

    Composite type crime preventive sensor
    10.
    发明授权
    Composite type crime preventive sensor 失效
    复合型犯罪预防传感器

    公开(公告)号:US4942384A

    公开(公告)日:1990-07-17

    申请号:US331367

    申请日:1989-03-31

    IPC分类号: G08B13/16

    CPC分类号: G08B13/1645

    摘要: A composite type crime preventive sensor processes output detection signals from a plurality of sensor units of mutually different detection systems for ranking the signals into a plurality of grades depending on signal level, and provides an intruder detection signal when a sum of ranked level values is above a preset reference value, whereby any risk of alarm failing and erroneous alarming can be effectively minimized.

    摘要翻译: 一种复合型犯罪预防传感器处理来自相互不同的检测系统的多个传感器单元的输出检测信号,用于根据信号电平将信号排列成多个等级,并且当排名级别值的和高于上述时提供入侵者检测信号 预设参考值,从而可以有效地最小化任何报警故障和错误报警的风险。