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公开(公告)号：US3889182A
公开(公告)日：1975-06-10
申请号：US45973674
申请日：1974-04-10
申请人： NASA
CPC分类号： G01R23/04 , G01N22/005 , G01R23/07
摘要： This invention is a resonant waveguide Stark cell suitable for use in a Stark-modulated microwave spectrometer. The cell is constructed from a short length of waveguide. A Stark electrode is located inside the waveguide parallel to the broad face of the guide and insulated from the walls of the guide with narrow teflon strips. A reflector with a small coupling iris at its center is located at one end of the cell. This small coupling iris is for passing microwave energy into and out of the cell. At the other end of the cell there is an adjustable waveguide short making the small Stark cell into a tuneable cavity which can be tuned for resonance at selected microwave frequencies. Means are provided for maintaining a gas-tight compartment within the cell, and ports are provided for the introduction of the gas to be analyzed into the gas-tight compartment.
摘要翻译： 本发明是适用于斯塔克调制微波光谱仪的谐振波导Stark电池。 电池由短波长的波导构成。 Stark电极位于波导内部，平行于引导件的宽面，并与引导件的壁与狭窄的特氟龙带绝缘。 在其中心处具有小耦合光圈的反射器位于电池的一端。 这种小耦合光圈用于将微波能量传入和传出细胞。 在电池的另一端，有一个可调节的波导短路，使小的Stark单元成为一个可调谐的空腔，可以在选定的微波频率调谐谐振。 提供了用于保持电池内的气密隔室的装置，并且提供用于将要分析的气体引入气密隔室的端口。
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公开(公告)号：US09958524B2
公开(公告)日：2018-05-01
申请号：US14737229
申请日：2015-06-11
申请人： The Boeing Company
IPC分类号： G01R35/00 , G01R27/06 , H01P5/08 , G01R3/00 , G01R23/165 , G01B21/04 , G01B7/06 , G01N22/00 , G01R23/07
CPC分类号： G01R35/007 , G01B7/085 , G01B21/042 , G01N22/00 , G01R3/00 , G01R23/07 , G01R23/165 , G01R27/06 , H01P5/082
摘要： A probe calibration device that includes a first offset element having a substantially rectangular first aperture. The probe calibration device includes a tuned pass element disposed adjacent to the first offset element. The tuned pass element has a non-rectangular second aperture. The probe calibration device includes a second offset element disposed adjacent to the tuned pass element and on a side opposite the first offset element. The second offset element has a substantially rectangular third aperture. The probe calibration device includes a backing element disposed adjacent to the second offset element. The first offset element, the tuned pass element, the second offset element and the backing element form a cavity.
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公开(公告)号：US20180041181A1
公开(公告)日：2018-02-08
申请号：US15351646
申请日：2016-11-15
发明人： Steven J. Cooper , David R. Hendry , Brian Hurley
CPC分类号： H03H3/00 , G01R23/07 , H01P1/2086 , H01P7/06 , H01P7/105 , H01P11/008 , H03H3/013 , H04B7/0456 , H04L7/0276 , H04L43/028 , Y10T29/49016
摘要： A method for tuning a filter component using size adjustment includes measuring a first frequency of a first resonant mode of a dielectric resonator component of an RF filter, said dielectric resonator component being a block of dielectric material having a cuboid shape with three pairs of opposite faces. The first resonant mode has an electric-field component oriented in a direction perpendicular to one of the pairs of opposite faces and parallel to the other two pairs of opposite faces. When a measured value of the first frequency of the first resonant mode is less than a desired value, dielectric material is removed uniformly from at least one face of the two pairs of opposite faces parallel to the electric-field component of the first resonant mode to maintain the cuboid shape of the block of dielectric material. The removal of the dielectric material may be by at least one of lapping, grinding, and milling. The first frequency of the first resonant mode is remeasured to check whether a remeasured value therefor is closer or equal to the desired value without exceeding the desired value. The method is also applicable for tuning multiple modes of dielectric resonator component in the form of a block of dielectric material having a cuboid shape, as well as for tuning multiple modes in dielectric resonator components in the form of blocks of dielectric material having cylindrical and spherical shapes.
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公开(公告)号：US20150285845A1
公开(公告)日：2015-10-08
申请号：US14744089
申请日：2015-06-19
发明人： KEIICHI ICHIKAWA
CPC分类号： G01R21/07 , G01R23/07 , G01R27/02 , G01R27/18 , H02J5/005 , H02J7/025 , H02J50/05 , H04B5/0037
摘要： A method for determining parameters of a wireless power transmission system is disclosed where the wireless power transmission system transmits power from a power transmission device to a power reception device via electric field coupling. The parameters include a coupling coefficient ke of an electric field coupling unit that is formed of active electrodes and passive electrodes of the power transmission device and the power reception device.
摘要翻译： 公开了一种用于确定无线电力传输系统的参数的方法，其中无线电力传输系统通过电场耦合将功率从功率传输装置传送到电力接收装置。 这些参数包括由有源电极和电力传输装置和电力接收装置的无源电极形成的电场耦合单元的耦合系数ke。
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公开(公告)号：US1941581A
公开(公告)日：1934-01-02
申请号：US53297231
申请日：1931-04-25
申请人： TELEFUNKEN GMBH
发明人： WILHELM RUNGE
IPC分类号： G01R23/07
CPC分类号： G01R23/07
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6.发明授权公开(公告)号：US11035771B2
公开(公告)日：2021-06-15
申请号：US14957032
申请日：2015-12-02
摘要： A method to operate a resonator is provided herein. As illustrated with an example, the resonator is excited by means of a periodic excitation signal with an integer number of at least two signal components with one specified frequency each. A response signal of the resonator is determined at the specified frequencies of the at least two signal components of the excitation signal. Eventually, parameters of a model illustrating the behavior of the resonator as a function of the response signal are calculated based on the response signal.
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公开(公告)号：US09863989B1
公开(公告)日：2018-01-09
申请号：US15240728
申请日：2016-08-18
摘要： A system includes a bottle, a first wire, a second wire, a current probe and an output line. The bottle holds a dielectric liquid therein. The first wire is disposed longitudinally on the bottle and generates a first oscillating electrical current in response to an electromagnetic wave, wherein the first oscillating electrical current thereby generates a corresponding first oscillating magnetic field. The second wire is disposed in parallel with the first wire on the bottle and generates a second oscillating electrical current in response to the electromagnetic wave, wherein the second oscillating electrical current thereby generating a corresponding second oscillating magnetic field. The current probe is arranged to surround the bottle such that the bottle is rotatable within the current probe or such that the current probe is rotatable around the bottle.
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8.发明申请ELECTROMAGNETIC METHOD FOR SENSING THE RELATIVE POSITION OF TWO ITEMS USING COUPLED TUNED CIRCUITS 审中-公开使用联接调谐电路感应两个相关位置的电磁方法公开(公告)号：US20130093436A1
公开(公告)日：2013-04-18
申请号：US13651821
申请日：2012-10-15
发明人： John Thorn
IPC分类号： G01R23/07
CPC分类号： G01R23/07 , G01B7/003 , G01B7/30 , G01D5/2066
摘要： An electromagnetic method for sensing the relative position of two items using coupled tuned resonant circuits. Two co-resonant tuned circuits are attached to two items 1 and 2 that move relative to one another. The coupling between the circuits is arranged to vary with their relative physical position. One of the tuned circuits is excited at or close to its resonant frequency. The degree of coupling between the tuned circuits is detected by its effect on the way the resultant oscillation changes with time, and this allows the relative position of the items to be established. The inductive elements of the tuned circuits can comprise anti-symmetrical regions 3, 4, 9 and 10 so that the magnetic fields generated by the oscillations are localised and sensitivity to externally applied magnetic fields is minimised. The inductive elements can be implemented directly as printed circuit board tracks.
摘要翻译： 一种用于使用耦合调谐谐振电路来感测两个物体的相对位置的电磁方法。 两个共谐振调谐电路连接到相对于彼此移动的两个项目1和2。 电路之间的耦合被布置为随其相对物理位置而变化。 其中一个调谐电路在其谐振频率处或接近谐振频率激发。 调谐电路之间的耦合度通过其对所产生的振荡随时间变化的影响而被检测，并且这允许建立项目的相对位置。 调谐电路的电感元件可以包括反对称区域3,4,9和10，使得由振荡产生的磁场被定位，并且对外部施加的磁场的灵敏度被最小化。 电感元件可以直接实现为印刷电路板轨道。
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公开(公告)号：US5117192A
公开(公告)日：1992-05-26
申请号：US464371
申请日：1990-01-12
申请人： Clarence Hurd
发明人： Clarence Hurd
CPC分类号： C23C14/546 , G01B7/066 , G01R23/07 , G01R29/22
摘要： A monitoring circuit monitors a piezoelectric crystal for changes in its resonant frequency as a film of material is vacuum deposited on it, e.g. to control a source of vapors of the material. A controllable frequency generator generates a drive signal of a accurately known frequency and phase within a band of RF frequencies that includes the resonant frequency of the crystal. The RF signal is applied through a duplexing circuit to the crystal, and a response signal is applied through the duplexing circuit to a signal amplifier and limiter circuit to a phase detector. The phase detector is also supplied with the RF drive signal, and has a phase output signal which is zero when the crystal is at resonance, and is negative or positive when the applied RF signal is below or above resonance, respectively. A micro-controller can be employed for controllably sweeping the frequency of the drive signal and then monitoring the frequencies at which the phase detector signal indicates zero, to identify the frequency of each of the one or more resonances. A cable compensation control circuit can also be coupled to the duplexing circuit for balancing the reactance of the conductive paths associated with the crystal. This can include a voltage controlled capacitance and a portion of a transformer within the duplexing circuit.
摘要翻译： 监测电路监测压电晶体的谐振频率的变化，因为材料的膜被真空沉积在其上。 以控制材料的蒸气源。 可控频率发生器产生包括晶体的谐振频率的RF频率的频带内的精确已知频率和相位的驱动信号。 RF信号通过双工电路施加到晶体，并且响应信号通过双工电路施加到信号放大器和限幅器电路到相位检测器。 相位检测器也被提供有RF驱动信号，并且当晶体处于谐振时具有为零的相位输出信号，当施加的RF信号低于或高于谐振时，相位检测器为负或正。 可以使用微控制器来可控地扫描驱动信号的频率，然后监视相位检测器信号指示零的频率，以识别一个或多个谐振中的每一个的频率。 电缆补偿控制电路还可以耦合到双工电路，用于平衡与晶体相关联的导电路径的电抗。 这可以包括压控电容和双工电路内的变压器的一部分。
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10.发明授权Tunable resonant sensing means to sense a particular frequency in a high energy charged particle beam and generate a frequency-domain signal in response 失效可调谐谐振感测装置，用于感测高能带电粒子束中的特定频率，并产生响应的频域信号
公开(公告)号：US4752728A
公开(公告)日：1988-06-21
申请号：US909669
申请日：1986-09-22
摘要： A frequency domain sensing system is disclosed for sensing the position of a high energy beam of charged particles traveling within a housing which comprises a plurality of sensors positioned in the wall of the housing radially around the axis of the beam. Each of the sensors further comprises a first electrode of predetermined shape received in a bore in the housing to define a fixed capacitance and an inductance structure attached to the electrode to provide an inductance for the sensing means which will provide an LC circuit which will resonate at a predetermined frequency known to exist in the beam of charged particles. The sensors are further provided with tuning apparatus associated with the inductance structure to vary the amount of the inductance to thereby tune the sensors to the predetermined frequency prior to transmission of the signal to signal detection circuitry.
摘要翻译： 公开了一种用于感测在壳体内行进的带电粒子的高能量束的位置的频域感测系统，该位置包括围绕梁的轴线径向定位在壳体的壁中的多个传感器。 每个传感器还包括容纳在壳体中的孔中的预定形状的第一电极，以限定固定的电容，以及连接到电极的电感结构，以提供感测装置的电感，该感应装置将提供将在 已知存在于带电粒子束中的预定频率。 传感器还具有与电感结构相关联的调谐装置，以改变电感量，从而在将信号传输到信号检测电路之前将传感器调谐到预定频率。
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