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公开(公告)号：US09437409B2
公开(公告)日：2016-09-06
申请号：US14367229
申请日：2012-12-06
Applicant: DH Technologies Development Pte. Ltd.
Inventor： John Vandermey , Alexander Tsipirovich
CPC classification number: H01J49/022 , G05F3/16 , H01J49/025 , H01J49/067 , H01J49/26 , H03H7/0138 , H03H11/04
Abstract: Systems, devices, circuits, and methods are provided for an improved mass spectrometry detection system that comprises at least one component that operates at a high voltage. A number of high voltage filters or circuits are provided for reducing noise from high voltage power supplies that produce positive and negative voltages. In some embodiments, the filters can comprise one or more diodes. In some embodiments, the filters can comprise one or more transistors. In some embodiments, the filters can comprise one or more transistor pairs. A variety of embodiments of systems, devices, circuits, and methods in conjunction with the disclosures are provided.
Abstract translation: 提供了用于改进的质谱检测系统的系统，装置，电路和方法，所述质谱检测系统包括在高电压下工作的至少一个组件。 提供了许多高压滤波器或电路，用于降低产生正负电压的高压电源的噪声。 在一些实施例中，滤波器可以包括一个或多个二极管。 在一些实施例中，滤波器可以包括一个或多个晶体管。 在一些实施例中，滤波器可以包括一个或多个晶体管对。 提供了结合公开的系统，设备，电路和方法的各种实施例。
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公开(公告)号：US10175197B2
公开(公告)日：2019-01-08
申请号：US15320561
申请日：2015-06-23
Applicant: DH Technologies Development PTE Ltd.
Inventor： Manuel Faur , Tiberiu Gera , Bradley B. Schneider , Farshid Tayyeb , John Vandermey
Abstract: Apparatus, systems, and methods for reducing or eliminating crosstalk in ion mobility spectrometers are provided. In some aspects, the apparatus, systems, and methods can reduce or eliminate crosstalk without significantly increasing the overall capacitive load of the ion mobility system. In accordance with various aspects of the applicant's teachings, cross talk compensation circuits are disclosed herein that address resulting issues in RF pickup and/or crosstalk in ion mobility spectrometers used with high-sensitivity downstream mass spectrometers such as mass spectrometers having high velocity gas interfaces that can be coupled to the ion mobility spectrometer.
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公开(公告)号：US20180218895A1
公开(公告)日：2018-08-02
申请号：US15107141
申请日：2014-11-28
Applicant: DH Technologies Development PTE Ltd.
Inventor： Bruce Andrew Collings , John Vandermey
CPC classification number: H01J49/427 , H01J49/0027 , H01J49/004 , H01J49/4225 , H01J49/423
Abstract: A method and apparatus for clearing ions from a multipole ion transmission device which includes introducing a DC or RF clear out pulse to one or more of the rods of the multipole device. The DC pulse is selected so as to supply sufficient kinetic energy to the ions to overcome a pseudo-potential trapping well generated by the RF potentials of the ion transmission device. For an RF pulse, the auxiliary RF signal uses frequencies that correspond to the ejected ion's frequencies of motion. In select embodiments, the multipole device can be a quadrupole or the apparatus can be part of a tandem mass spectrometer.
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公开(公告)号：US20170191964A1
公开(公告)日：2017-07-06
申请号：US15320561
申请日：2015-06-23
Applicant: DH Technologies Development PTE Ltd.
Inventor： Manuel Faur , Tiberiu Gera , Bradley B. Schneider , Farshid Tayyeb , John Vandermey
CPC classification number: G01N27/624 , H01J49/022
Abstract: Apparatus, systems, and methods for reducing or eliminating crosstalk in ion mobility spectrometers are provided. In some aspects, the apparatus, systems, and methods can reduce or eliminate crosstalk without significantly increasing the overall capacitive load of the ion mobility system. In accordance with various aspects of the applicant's teachings, cross talk compensation circuits are disclosed herein that address resulting issues in RF pickup and/or crosstalk in ion mobility spectrometers used with high-sensitivity downstream mass spectrometers such as mass spectrometers having high velocity gas interfaces that can be coupled to the ion mobility spectrometer.
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