Web thickness sensor using loop-gap resonator
    1.
    发明授权
    Web thickness sensor using loop-gap resonator 失效
    使用环形间隙谐振器的网页厚度传感器

    公开(公告)号:US4623835A

    公开(公告)日:1986-11-18

    申请号:US589641

    申请日:1984-03-14

    CPC分类号: G01B15/02 G01N27/223

    摘要: The thickness of a web is measured by passing the web through the gaps of a loop-gap resonator. Changes in web thickness alter the resonant frequency of the resonator which is detected by a control circuit. Three embodiments of the invention are described, and in one embodiment, the moisture content of the web is also measured.

    摘要翻译: 通过将纤维网通过环形间隙共振器的间隙来测量幅材的厚度。 卷材厚度的变化改变了由控制电路检测到的谐振器的谐振频率。 描述了本发明的三个实施方案,并且在一个实施方案中,也测量了幅材的水分含量。

    Microwave field director structure having vanes with inner ends wrapped with a conductive wrapper
    2.
    发明授权
    Microwave field director structure having vanes with inner ends wrapped with a conductive wrapper 有权
    具有叶片的微波场指导结构,其内端用导电包裹物包裹

    公开(公告)号:US08455802B2

    公开(公告)日:2013-06-04

    申请号:US12249124

    申请日:2008-10-10

    IPC分类号: H05B6/80

    CPC分类号: H05B6/704 H05B6/74

    摘要: A reusable self-supporting field director for use in a microwave oven is characterized by a plurality of vanes, each extending radially outwardly from a central axis. The vanes are supported in a slotted central support member. Each vane has a predetermined thickness dimension. Each vane comprises a substrate formed from an electrically non-conductive material having a predetermined coefficient of thermal expansion and an electrically conductive wrapper having a predetermined coefficient of thermal expansion that is different from the coefficient of thermal expansion of the substrate. The wrapper wraps the substrate so that a portion of the first and second major surfaces are covered and the radially inner end of each vane is wrapped by an electrically conductive material. The wrapper and the substrate are arranged in a laterally symmetric fashion so that thermal expansion effects due to heating are equalized across the thickness of each vane.

    摘要翻译: 用于微波炉的可重复使用的自支撑场导向器的特征在于多个叶片,每个叶片从中心轴线径向向外延伸。 叶片被支撑在开槽的中心支撑构件中。 每个叶片具有预定的厚度尺寸。 每个叶片包括由具有预定热膨胀系数的非导电材料形成的基板和具有与基板的热膨胀系数不同的预定热膨胀系数的导电封装件。 包装物包裹基底,使得第一和第二主表面的一部分被覆盖,并且每个叶片的径向内端由导电材料包裹。 包装物和基材以横向对称的方式布置,使得由于加热引起的热膨胀效应在每个叶片的厚度上相等。

    Microwave field director structure having vanes with outer ends wrapped with a conductive wrapper
    3.
    发明授权
    Microwave field director structure having vanes with outer ends wrapped with a conductive wrapper 有权
    微波场指导结构具有叶片,外端用导电包裹物包裹

    公开(公告)号:US08338765B2

    公开(公告)日:2012-12-25

    申请号:US12249189

    申请日:2008-10-10

    IPC分类号: H05B6/80

    CPC分类号: H05B6/80 H05B6/72

    摘要: A reusable self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, each vane extending radially outwardly from a central axis and being angularly adjacent to two other vanes. The vanes are attached to each other at their inner ends. Each vane has a substrate formed from an electrically non-conductive material and an electrically conductive wrapper that wraps the substrate so that a portion of the first and second major surfaces are covered and the radially outer end of each vane is wrapped by an electrically conductive material. The wrapper and the substrate are arranged in a laterally symmetric fashion so that thermal expansion effects due to heating are equalized across the thickness of each vane.

    摘要翻译: 用于加热微波炉制品的可重复使用的自支撑现场指导器的特征在于多个叶片,每个叶片从中心轴线径向向外延伸并且与两个其它叶片成角度地相邻。 叶片在其内端彼此附接。 每个叶片具有由非导电材料形成的基底和导电包裹物,该包裹物包裹基底,使得第一和第二主表面的一部分被覆盖,并且每个叶片的径向外端由导电材料包裹 。 包装物和基材以横向对称的方式布置,使得由于加热引起的热膨胀效应在每个叶片的厚度上相等。

    SUSCEPTOR ASSEMBLY AND FIELD DIRECTOR ASSEMBLY FOR USE IN A MICROWAVE OVEN
    4.
    发明申请
    SUSCEPTOR ASSEMBLY AND FIELD DIRECTOR ASSEMBLY FOR USE IN A MICROWAVE OVEN 审中-公开
    在MICROWAVE OVEN中使用的SUSCEPTOR总成和现场总监总成

    公开(公告)号:US20120312810A1

    公开(公告)日:2012-12-13

    申请号:US13524261

    申请日:2012-06-15

    IPC分类号: H05B6/64

    摘要: A susceptor assembly comprises a generally planar susceptor having an electric field director structure mechanically connected thereto. The field director structure includes at least one, but more preferably, a plurality of two or more vanes mechanically connected to the susceptor. Each vane has a surface at least a portion of which is electrically conductive. The vane(s) are most preferably disposed substantially orthogonal to the planar susceptor. The connection may be either a fixed or a flexible articulating connection.In use, such as in the presence of a standing electromagnetic wave generated within a microwave oven, only an attenuated electric field component of the electromagnetic wave exists in a plane tangent to the surface of the vane in the vicinity of the conductive portion of the vane. Attenuation of the electric field component of the electromagnetic wave in the plane tangent to the surface of the vane resulting in enhancement of the component of the electric field substantially orthogonal to the conductive surface.Rotation of the susceptor assembly within the oven, or variation of the standing electromagnetic wave generated within the oven (as by a mode stirrer) results in a substantially uniform warming, cooking and browning effect on a food product placed on the planar susceptor.

    摘要翻译: 感受器组件包括具有机械连接到其上的电场导向器结构的大致平面的基座。 场导向器结构包括机械地连接到基座的至少一个,但更优选地是多个两个或更多个叶片。 每个叶片具有至少一部分导电的表面。 叶片最优选地设置成基本上垂直于平面基座。 连接可以是固定的或柔性的铰接连接。 在使用中,例如在微波炉内产生的立体电磁波的存在下,在叶片的导电部附近的与叶片表面相切的平面内仅存在电磁波的衰减电场成分 。 在与叶片表面相切的平面中的电磁波的电场分量的衰减导致基本上与导电表面正交的电场分量的增强。 烤箱内的基座组件的旋转或烘箱内产生的驻留电磁波的变化(如通过模式搅拌器)导致对放置在平面基座上的食品产生基本均匀的变暖,烹调和褐变效应。

    Susceptor assembly for use in a microwave oven
    5.
    发明授权
    Susceptor assembly for use in a microwave oven 有权
    用于微波炉的Susceptor组件

    公开(公告)号:US08217324B2

    公开(公告)日:2012-07-10

    申请号:US11511962

    申请日:2006-08-29

    IPC分类号: H05B6/80 H05B6/64

    摘要: A susceptor assembly includes a generally planar susceptor having an electric field director structure mechanically connected thereto. The field director structure includes at least one, but more preferably, a plurality of two or more vanes mechanically connected to the susceptor. Each vane has a surface at least a portion of which is electrically conductive. The vane(s) are most preferably disposed substantially orthogonal to the planar susceptor. The connection may be either a fixed or a flexible articulating connection. In use, such as in the presence of a standing electromagnetic wave generated within a microwave oven, only an attenuated electric field component of the electromagnetic wave exists in a plane tangent to the surface of the vane in the vicinity of the conductive portion of the vane.

    摘要翻译: 感受器组件包括具有与其机械连接的电场导向器结构的大致平面的基座。 场导向器结构包括机械地连接到基座的至少一个,但更优选地是多个两个或更多个叶片。 每个叶片具有至少一部分导电的表面。 叶片最优选地设置成基本上垂直于平面基座。 连接可以是固定的或柔性的铰接连接。 在使用中,例如在微波炉内产生的立体电磁波的存在下,在叶片的导电部附近的与叶片表面相切的平面内仅存在电磁波的衰减电场成分 。

    Microwave Field Director Structure Having Vanes Covered With A Conductive Sheath
    6.
    发明申请
    Microwave Field Director Structure Having Vanes Covered With A Conductive Sheath 有权
    微波场主任结构,具有覆盖有导电护套的叶片

    公开(公告)号:US20090095746A1

    公开(公告)日:2009-04-16

    申请号:US12249169

    申请日:2008-10-10

    IPC分类号: H05B6/80

    CPC分类号: H05B6/64 H05B6/72

    摘要: A reusable self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, with each vane extending radially outwardly from a central axis.Each vane is angularly adjacent to two other vanes and is attached to each other at their inner ends. Each vane has a predetermined thickness dimension.Each vane each vane has a substrate formed from an electrically non-conductive material having a predetermined coefficient of thermal expansion, and an electrically conductive sheath having a predetermined coefficient of thermal expansion that is different from the coefficient of thermal expansion of the substrate. The sheath encases the substrate so that a portion of the first and second major surfaces and a portion of the first and second minor surfaces of each vane are covered by an electrically conductive material. The sheath and the substrate are arranged in a laterally symmetric fashion so that thermal expansion effects due to heating are equalized across the thickness of each vane.

    摘要翻译: 用于加热微波炉中的制品的可重复使用的自支撑现场指导器的特征在于多个叶片,每个叶片从中心轴线径向向外延伸。 每个叶片与两个其他叶片成角度地相邻并且在它们的内端彼此附接。 每个叶片具有预定的厚度尺寸。 每个叶片每个叶片具有由具有预定热膨胀系数的非导电材料形成的基板,以及具有与基板的热膨胀系数不同的预定热膨胀系数的导电护套。 护套包住基底,使得第一和第二主表面的一部分以及每个叶片的第一和第二次表面的一部分被导电材料覆盖。 护套和衬底以横向对称的方式布置,使得由于加热引起的热膨胀效应在每个叶片的厚度上相等。

    Method for Detecting an Interface Between First and Second Strata of Materials
    7.
    发明申请
    Method for Detecting an Interface Between First and Second Strata of Materials 失效
    检测材料第一和第二层之间接口的方法

    公开(公告)号:US20080106271A1

    公开(公告)日:2008-05-08

    申请号:US11661895

    申请日:2005-09-02

    IPC分类号: G01N27/02 G01R27/28

    CPC分类号: G01F23/284

    摘要: Methods of detecting an interface between first and second materials having different dielectric loss factors disposed in a stratified manner in a volume of materials using a sensing apparatus having a length of transmission line that includes an inner conductor surrounded by a dielectric material and at least one shielding conductor are disclosed. A predetermined number of sublengths of the inner conductor are exposed along the length of the transmission line, with adjacent sublengths of the exposed inner conductor being separated by shielded sublengths. In a first embodiment the sensing apparatus is excited by a radio frequency signal at a predetermined amplitude. The excited sensing apparatus is inserted into the volume of materials to a predetermined depth through the first layer and into the second layer. The signal transmitted through the sensing apparatus is detected and its attenuation measured. The interface between strata within the volume is identified based upon the attenuation of the radio frequency signal. In an alternate embodiment the sensing apparatus is excited by a radio frequency signal at a predetermined amplitude and progressively inserted into the volume of materials. The position of the sensing apparatus within the volume is tracked and the attenuation of the radio frequency signal is monitored as a function of insertion distance into the volume to detect first distance ranges having a substantial rate of change of attenuation and second distance ranges having substantially no change of attenuation. The location of the interface between strata within the volume is identified based upon differences in the rate of change in attenuation in adjacent first distance ranges.

    摘要翻译: 检测具有不同介电损耗因子的第一和第二材料之间的界面的方法,其使用感测装置以分层方式设置,所述传感装置具有包括由电介质材料包围的内部导体和至少一个屏蔽层 导体被公开。 内部导体的预定数量的长度沿着传输线的长度被暴露,其中暴露的内部导体的相邻子长度被屏蔽的子长度分开。 在第一实施例中,感测装置以预定振幅的射频信号激发。 将激发的感测装置通过第一层插入材料体积到预定深度并进入第二层。 检测通过感测装置传输的信号,并测量其衰减。 基于射频信号的衰减来识别音量内的层之间的接口。 在替代实施例中,感测装置由预定振幅的射频信号激励,并逐渐地插入到材料体积中。 跟踪感测设备在体积内的位置,并且根据到体积的插入距离来监测射频信号的衰减,以检测具有实质上的衰减变化率的第一距离范围和基本上没有的第二距离范围 衰减的变化。 基于相邻第一距离范围内的衰减变化率的差异来识别体积内的层之间的界面的位置。

    Method for detecting an interface between first and second strata of materials
    10.
    发明授权
    Method for detecting an interface between first and second strata of materials 失效
    用于检测材料的第一和第二层之间的界面的方法

    公开(公告)号:US07538561B2

    公开(公告)日:2009-05-26

    申请号:US11661895

    申请日:2005-09-02

    IPC分类号: G01R27/04

    CPC分类号: G01F23/284

    摘要: Methods of detecting an interface between materials having different dielectric loss factors using an apparatus having a transmission line including an inner conductor surrounded by dielectric and a shielding conductor are disclosed. Sublengths of inner conductor are exposed along the line, with adjacent sublengths being separated by shielded sublengths. In one embodiment the apparatus is excited by a signal and inserted into the materials to a predetermined depth. Signal attenuation is measured. The interface between strata is identified based upon signal attenuation. In another embodiment the apparatus is excited by a signal and progressively inserted into the materials. Apparatus position is tracked and t-he attenuation of the signal is monitored as a function of insertion distance to detect ranges having a substantial rate of change of attenuation and ranges having substantially no change of attenuation. The interface is identified based upon differences in the rate of change in attenuation.

    摘要翻译: 公开了使用具有包括由电介质围绕的内部导体和屏蔽导体的传输线的装置来检测具有不同介电损耗因子的材料之间的界面的方法。 内部导体的长度沿线显露,相邻的子长度被屏蔽的子长度分开。 在一个实施例中,该装置被信号激发并插入到预定深度的材料中。 测量信号衰减。 基于信号衰减来识别地层之间的界面。 在另一个实施例中,装置被信号激励并逐渐插入到材料中。 跟踪设备位置,并且根据插入距离来监测信号的衰减,以检测具有实质上的衰减变化幅度的范围和基本上没有衰减变化的范围。 基于衰减变化率的差异来识别接口。