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    • 1. 发明授权
    • Piezoelectric moisture measuring device
    • 压电式水分测量装置
    • US4491784A
    • 1985-01-01
    • US413286
    • 1982-08-31
    • John H. FloraJames E. Henderson
    • John H. FloraJames E. Henderson
    • G01N27/00G01N27/02G01N27/22G01N27/24G01N33/00G01R27/26
    • G01N27/223G01N2291/02845G01N2291/02863G01N33/0062
    • A moisture-measuring device for measuring moisture of the ambient on one side of a solid wall comprises a piezoelectric crystal sonically coupled to the wall on a surface thereof facing the one side. A capacitor or other moisture sensitive impedance means is connected to the piezoelectric crystal over a network which is operable to provide a response indicative of the impedance of the capacitor upon excitation of the crystal at the resonant frequency of the circuit. The capacitor comprises at least two spaced plates which are exposed to the ambient. Change in moisture in the ambient thus causes change in capacitance of the capacitor. By sonically exciting the piezoelectric crystal from an opposite side of the wall, a measure of change in resonant frequency of the network can be made. This measurement is related to the moisture content of the ambient.
    • 用于测量固体壁的一侧上的环境湿度的湿度测量装置包括与面向一侧的表面上的壁声音耦合的压电晶体。 电容器或其它潮湿敏感阻抗装置通过网络连接到压电晶体,该网络可操作以在电路的谐振频率激发晶体时提供指示电容器的阻抗的响应。 电容器包括暴露于环境中的至少两个隔开的板。 因此,环境中的湿度变化导致电容器的电容变化。 通过从壁的相对侧对压电晶体进行超声波激发,可以测量网络的谐振频率的变化。 此测量与环境的水分含量有关。
    • 3. 发明授权
    • Window pocket insertion and removal device and method
    • 窗口袋插拔装置及方法
    • US06267412B1
    • 2001-07-31
    • US09095461
    • 1998-06-10
    • James E. Henderson
    • James E. Henderson
    • B42D1500
    • B42F13/006B42D25/00B42D25/351B42P2221/10
    • A thin window pocket insertion and removal device comprising an elongated body (12) having a first end (11) and a second end (13), a frictional element (19) adhered to one side of the elongated body (12), and a lip portion (18) protruding from the second end (13) of the elongated body (12). In some preferred embodiments, the device (10) further includes a handle portion (14) and a stop portion (30) protruding from the handle (14). The elongated body (12) is made of a flexible but sufficiently rigid material so as to resist warping and breakage during use or when not in use. Further, in some embodiments, the elongated body (12) includes one or more apertures (16), (17) all of which act to facilitate storage.
    • 一种薄的窗口袋插入和移除装置,包括具有第一端(11)和第二端(13)的细长体(12),粘附到细长体(12)的一侧的摩擦元件(19),以及 从所述细长主体(12)的第二端(13)突出的唇部(18)。 在一些优选实施例中,装置(10)还包括手柄部分(14)和从手柄(14)突出的止动部分(30)。 细长体(12)由柔性但足够刚性的材料制成,以便在使用期间或不使用时抵抗翘曲和断裂。 此外,在一些实施例中,细长主体(12)包括一个或多个孔(16),(17),所有孔用于促进储存。