Method and device for detecting water in a cellular structure
    1.
    发明授权
    Method and device for detecting water in a cellular structure 失效
    用于检测细胞结构中的水的方法和装置

    公开(公告)号:US08176785B2

    公开(公告)日:2012-05-15

    申请号:US12663160

    申请日:2008-06-02

    IPC分类号: G01N22/04 G01F23/00

    CPC分类号: G01N22/04 G01F23/284

    摘要: The invention relates to the detection of liquid in a cavity of a structure, e.g. a sandwich-structure cell with honeycomb core and carbon fiber composite coating. The structure is subjected to a mechanical vibration, at a frequency fm in the audible range, by an excitation wave, the area being explored is subjected to an incident electromagnetic wave and the reflected electromagnetic wave is analyzed to deduce therefrom the presence or the absence of liquid in cavities. The Faraday wave induced on the surface of the liquid in the cavity comprises subharmonic frequencies of fm which modulate the reflected electromagnetic wave and make it possible to identify the presence of liquid. A detection apparatus comprises an excitation wave generation device for generating the vibration excitation wave, an electromagnetic wave generation device for generating the incident electromagnetic wave, a measuring device for detecting and measuring the reflected electromagnetic wave, and a signal processor.

    摘要翻译: 本发明涉及在结构的空腔中的液体的检测。 具有蜂窝芯和碳纤维复合涂层的三明治结构电池。 该结构通过激发波在可听到的范围内以频率fm进行机械振动,所探测的区域经受入射电磁波,并且反射的电磁波被分析从而推断出存在或不存在 液体在空腔中。 在空腔中的液体表面引起的法拉第波包含调谐反射电磁波的fm的次谐波频率,并且可以识别液体的存在。 检测装置包括用于产生振动激励波的激发波产生装置,用于产生入射电磁波的电磁波产生装置,用于检测和测量反射的电磁波的测量装置以及信号处理器。

    Method and apparatus for carrier regeneration and synchronous amplitude
demodulation
    2.
    发明授权
    Method and apparatus for carrier regeneration and synchronous amplitude demodulation 失效
    载波再生和同步幅度解调的方法和装置

    公开(公告)号:US4292594A

    公开(公告)日:1981-09-29

    申请号:US68439

    申请日:1979-08-21

    摘要: The invention relates to a method of regenerating the modulation carrier wave of an original modulated signal (SL) which has symmetrical frequency components about the carrier. A phase discriminator (D1) which receives two image signals (SL, S11) of the original signal controls the frequency of a local oscillator (OL), the frequency spectrum of one of the image signals being inverted with respect to that of the original signal and the difference in frequencies between these two image signals being twice that between the local carrier and the carrier of the original signal. Application to the synchronous demodulation of a television signal.

    摘要翻译: 本发明涉及一种再生原始调制信号(SL)的调制载波的方法,该调制信号具有关于载波的对称频率分量。 接收原始信号的两个图像信号(SL,S11)的相位鉴别器(D1)控制本地振荡器(OL)的频率,其中一个图像信号的频谱相对于原始信号的频谱被反转 并且这两个图像信号之间的频率差是本地载波和原始信号的载波之间的两倍。 应用于电视信号的同步解调。

    METHOD AND DEVICE FOR DETECTING WATER IN A CELLULAR STRUCTURE
    4.
    发明申请
    METHOD AND DEVICE FOR DETECTING WATER IN A CELLULAR STRUCTURE 失效
    用于检测细胞结构中的水的方法和装置

    公开(公告)号:US20100162818A1

    公开(公告)日:2010-07-01

    申请号:US12663160

    申请日:2008-06-02

    CPC分类号: G01N22/04 G01F23/284

    摘要: The invention relates to the detection of liquid in a cavity of a structure, e.g. a sandwich-structure cell with honeycomb core and carbon fiber composite coating. The structure is subjected to a mechanical vibration, at a frequency fm in the audible range, by an excitation wave, the area being explored is subjected to an incident electromagnetic wave and the reflected electromagnetic wave is analyzed to deduce therefrom the presence or the absence of liquid in cavities. The Faraday wave induced on the surface of the liquid in the cavity comprises subharmonic frequencies of fm which modulate the reflected electromagnetic wave and make it possible to identify the presence of liquid. A detection apparatus comprises an excitation wave generation device for generating the vibration excitation wave, an electromagnetic wave generation device for generating the incident electromagnetic wave, a measuring device for detecting and measuring the reflected electromagnetic wave, and a signal processor.

    摘要翻译: 本发明涉及在结构的空腔中的液体的检测。 具有蜂窝芯和碳纤维复合涂层的三明治结构电池。 该结构通过激发波在可听到的范围内以频率fm进行机械振动,所探测的区域经受入射电磁波,并且反射的电磁波被分析从而推断出存在或不存在 液体在空腔中。 在空腔中的液体表面引起的法拉第波包含调谐反射电磁波的fm的次谐波频率,并且可以识别液体的存在。 检测装置包括用于产生振动激励波的激发波产生装置,用于产生入射电磁波的电磁波产生装置,用于检测和测量反射的电磁波的测量装置以及信号处理器。

    Hand holdable manually dispensing mastic container
    8.
    发明授权
    Hand holdable manually dispensing mastic container 失效
    可手动手动分配乳香容器

    公开(公告)号:US06003730A

    公开(公告)日:1999-12-21

    申请号:US43376

    申请日:1998-03-17

    CPC分类号: B65D75/5883 B65D75/5805

    摘要: A hand holdable manually dispensing mastic container is made from two sheets of transparent plastics material which are welded together at a seam around the periphery thereof. The container is formed to have a dispensing edge and a filling end which are parallel to one another. The container has a generally elongate shape which diverges from the dispensing edge to a widest dimension, and parallel to the dispensing edge, and then converges to the filling end. Thus, two trapezoidal portions are formed. The volume of the portion closest to dispensing edge is smaller than the volume of the portion closest to the filling end.

    摘要翻译: PCT No.PCT / GB96 / 02384第 371日期:1998年3月17日 102(e)1998年3月17日PCT 1996年9月26日PCT公布。 出版物WO97 / 11895 日期1997年4月3日手动分配乳胶容器由两片透明塑料制成,这些透明塑料材料以围绕其周边的接缝焊接在一起。 容器形成为具有彼此平行的分配边缘和填充端。 容器具有大致细长的形状,其从分配边缘发散到最宽的尺寸,并且平行于分配边缘,然后会聚到填充端。 因此,形成两个梯形部分。 最靠近分配边缘的部分的体积小于最靠近填充端的部分的体积。

    Radioaltimeter type of detector and a proximity fuse equipped with such
a detector
    9.
    发明授权
    Radioaltimeter type of detector and a proximity fuse equipped with such a detector 失效
    检测器的放射性计量器类型和配有这种检测器的接近保险丝

    公开(公告)号:US4973967A

    公开(公告)日:1990-11-27

    申请号:US276250

    申请日:1988-11-23

    摘要: The invention relates to a radioaltimeter type detector comprising an oscillator-transmitter (10), a modulator (20) suitable for frequency modulating the oscillator-transmitter according to a given characteristic, a mixer receiving the signal from the oscillator-transmitter and a corresponding echo signal reflected by a target, and a discriminator circuit (50, 60) connected to the output from the mixer. According to the invention, the modulator (20) includes a digital memory (21) containing a series of values defining the frequency modulation characteristic of the oscillator-transmitter (10).

    摘要翻译: 本发明涉及一种包括振荡器 - 发射器(10),适于根据给定特性对振荡器 - 发射机进行频率调制的调制器(20)的放射计型式检测器,接收来自振荡器 - 发射器的信号的混频器和对应的回波 由目标反射的信号,以及连接到混频器的输出的鉴频电路(50,60)。 根据本发明,调制器(20)包括数字存储器(21),其包含定义振荡器 - 发射机(10)的频率调制特性的一系列值。