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公开(公告)号：US11268997B1
公开(公告)日：2022-03-08
申请号：US16996561
申请日：2020-08-18
Applicant: Keysight Technologies, Inc.
Inventor： Jan Verspecht , Augustine Stav
IPC: G01L21/32 , G01R23/20 , H04L27/38 , G01R27/28 , G01R35/00 , H01J41/04 , H01J41/06 , H01J41/16 , H01J41/14 , G01L21/00 , G01L21/34 , G01L19/08
Abstract: A system of measuring and correcting for distortions in homodyne systems and a method for operating a data processing system to provide an estimate of distortions in homodyne systems are disclosed. The method for operating a data processing system to provide an estimate of a distortion introduced by a homodyne system when the homodyne system processes a time a multi-tone time domain input signal, x(t), to obtain a time domain output signal, y(t) includes receiving a frequency spectrum, X(f), of the multi-tone time domain input signal, x(t) and measuring an output frequency spectrum, Y(f), when the homodyne system operates on x(t). A plurality of parameters of a model that represents a linear frequency response of the homodyne system when operating on X(f) to arrive at Y(f) by fitting the model to Y(f) and X(f) is determined, and the model is applied to X(f) and Y(f) to estimate the distortions.
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公开(公告)号：US10914649B1
公开(公告)日：2021-02-09
申请号：US17060436
申请日：2020-10-01
Applicant: Canon Anelva Corporation
Inventor： Yohsuke Kawasaki
Abstract: An ionization gauge includes an anode having a rod shape, and a cathode including a cathode plate having a through hole through which the anode extends. A shape of the through hole on a section along an axial direction of the anode includes a concave portion sandwiched between two convex portions.
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公开(公告)号：US20050028602A1
公开(公告)日：2005-02-10
申请号：US10910104
申请日：2004-08-03
Applicant: Raffaele Correale
Inventor： Raffaele Correale
Abstract: An ionisation vacuum gauge for measuring the residual pressure of a gaseous material remaining in a container (10), more particularly after operation of a vacuum pump comprises an electron-emitting cathode (31) made by exploiting the nanotube technology, a grid (13; 33; 133; 133′) for accelerating the electrons emitted by the cathode, and a plate (15; 35) collecting the ions and/or the ionised positive molecules of the gas. Measuring the plate current by a galvanometer allows for determining the value of the residual pressure inside the container.
Abstract translation: 用于测量残留在容器（10）中的气态材料的残余压力的电离真空计更具体地在真空泵的操作之后包括通过利用纳米管技术制成的电子发射阴极（31），栅格（13; 33; 133; 133'），用于加速由阴极发射的电子;以及板（15; 35），其收集气体的离子和/或电离的正分子。 用电流计测量板电流可以确定容器内残余压力的值。
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4.发明授权Removable discharge initiating means for cold cathode discharge ionization gauge 失效用于冷阴极放电离子电位仪的可拆卸放电启动装置
公开(公告)号：US5198772A
公开(公告)日：1993-03-30
申请号：US843197
申请日：1992-02-28
Applicant: Roy N. Peacock , Neil T. Peacock
Inventor： Roy N. Peacock , Neil T. Peacock
CPC classification number: H01J41/06
Abstract: A cold cathode gauge including a glow lamp or the like disposed within the vacuum space of the gauge for initiating the gauge discharge, the lamp emitting UV or blue light directly at at least the cathode of the gauge where the energy of the light is sufficient to release photoelectrons from the cathode to thus initiate the discharge. A member is also provided for removably positioning the glow lamp within the vacuum space whereby the lamp can be removed during bake out and then subsequent thereto, be inserted within the vacuum space to thus enhance longevity of the lamp.
Abstract translation: 一种冷阴极测量仪，包括设置在量规的真空空间内的辉光灯等，用于启动量规放电，该灯直接在光能的阴极处至少发射出紫外线或蓝光，其中光的能量足以 从阴极释放光电子，从而开始放电。 还提供一种用于将真空灯可拆卸地定位在真空空间内的构件，由此在烘烤期间随后可以将灯除去，然后将其插入真空空间内，从而提高灯的寿命。
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公开(公告)号：US3665245A
公开(公告)日：1972-05-23
申请号：US3665245D
申请日：1969-10-27
Applicant: RESEARCH CORP
Inventor： SCHWARZ HELMUT J
Abstract: A non-magnetic ionization gauge or ion pump comprising a tube containing spaced cathodes at the same potential, with an intermediately positioned ring anode for setting up an oscillating stream of electrons that is focused or constrained within an axial path by an electric quadrupole lens arrangement which may be excited by the RF force. The quadrupole lenses create a field which is tuned firstly to lengthen and stabilize the path of the electrons thus causing greater ionization of the gas atoms in the tube, and also to expel the ions produced thereby, which ions are then collected by a cylindrical collector screen at a slightly negative potential surrounding the whole electrode structure. The collector current produced with this arrangement has been found to be approximately inversely proportional to the pressure within the range from 10 5 to 10 10 torr, so that collector currents of the order of microamperes can be obtained at very low pressure levels.
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Patent Agency Ranking
公开(公告)号：US3614512A
公开(公告)日：1971-10-19
申请号：US3614512D
申请日：1969-04-14
Applicant: PHILIPS CORP
Inventor： EVRARD ROBERT
CPC classification number: H01J41/06
Abstract: Ion source for use in an ion pump or other apparatus, comprising a secondary-emissive cylinder accommodating a grid. A highfrequency voltage is applied between these two electrodes so that the transit time of the diametrically moving electrons is one whole period or a multiple thereof.
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公开(公告)号：US3399341A
公开(公告)日：1968-08-27
申请号：US45802865
申请日：1965-05-24
Applicant: UNITED AIRCRAFT CORP
Inventor： BANAS CONRAD M , CHURCHILL THOMAS L , POWERS DONALD E
IPC: H01J41/06
CPC classification number: H01J41/06
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8.发明授权High power switching amplifier wherein energy is transferred to a tuned circuit during both half cycles 失效大功率开关放大器，其中在两个半周期期间能量被转移到调谐电路
公开(公告)号：US3239771A
公开(公告)日：1966-03-08
申请号：US25669363
申请日：1963-02-06
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： ANDREATTA JAMES H
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