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1. 发明授权

US11940426B2 Chromatograph mass spectrometer 有权
公开(公告)号：US11940426B2
公开(公告)日：2024-03-26
申请号：US17437263
申请日：2019-03-27
申请人： SHIMADZU CORPORATION
发明人： Kazuma Maeda
IPC分类号： G01N30/72 , G01N27/70
CPC分类号： G01N30/7213 , G01N27/70 , G01N30/7293
摘要： Provided is a chromatograph mass spectrometer that includes a component separation unit 13 that temporally separates components in a sample, a first detector 15 that acquires measurement data of components included in an outflowing liquid from the component separation unit 13 by an analysis method different from mass spectrometry, a mass spectrometer 2 that acquires mass spectrometry data including intensity information for each of mass-to-charge ratios of ions derived from the components contained in the outflowing liquid from the component separation unit 13, a chromatogram creation unit 45 that creates a chromatogram representing an intensity change of the measurement data with time based on the measurement data of the first detector 15, an information extraction unit 46 that detects a peak based on the intensity change of the mass spectrometry data with time, and extracts information including a representative time of the peak, and a chromatogram display unit 48 that displays the chromatogram together with additional information corresponding to the extracted time.

2. 发明申请

US20220034841A1 DISCHARGE IONIZATION DETECTOR 有权
公开(公告)号：US20220034841A1
公开(公告)日：2022-02-03
申请号：US17341486
申请日：2021-06-08
申请人： SHIMADZU CORPORATION
发明人： Kei SHINADA
IPC分类号： G01N27/70
摘要： A discharge ionization detector includes: a gas passage (104, 120) through which an electric-discharge gas is to be passed; a plasma generation electrode (106-108) configured to generate an electric discharge in the gas passage so as to generate plasma from the electric-discharge gas; a sample-gas introduction section (124) through which a sample gas is introduced into the gas passage; a collection electrode (117) configured to collect ions generated from a sample with the plasma; a bias electrode (113) located between the plasma generation electrode and the collection electrode, and configured to create an electric field for guiding the charged particles to the collection electrode; and a DC power unit (131, 133) capable of independently controlling a voltage applied to the bias electrode and a voltage applied to the collection voltage. A peak-shape abnormality in a signal output can be suppressed by appropriately adjusting the voltages.

3. 发明授权

US11112391B2 Mass spectrometric data processing device for qualitative analysis 有权
公开(公告)号：US11112391B2
公开(公告)日：2021-09-07
申请号：US15762818
申请日：2015-09-25
申请人： SHIMADZU CORPORATION
发明人： Kengo Maeda , Tomohiro Kawase , Yutaro Yamamura , Tomoomi Hoshi
IPC分类号： G01N30/86 , G01N27/62 , G01N27/70 , G06K9/00 , H01J49/00 , G01N30/72 , G01N27/626
摘要： A degree of similarity in the peak pattern between a mass spectrum obtained for an unknown target substance in a sample and a mass spectrum of a known specific substance is calculated (S4). If the degree of similarity is within a range of 80-60% (“No” in S6), the ratio between the signal intensities at two mass-to-charge ratios characteristic of the specific substance is calculated and compared with a reference value (S7 and S8). If the intensity ratio exceeds the reference value, the target substance is likely to be the specific substance. Therefore, as in the case where the degree of similarity is equal to or higher than 80%, it is concluded that the specific substance is contained in the sample (S10). In advance of such a judgment, whether or not the sample has been certainly subjected to the mass spectrometric analysis is determined from a graph of the total ion current signal created from data collected by performing a measurement from a point in time before the sample is placed at a measurement position (S2 and S3). If no significant peak is present in the graph, it is concluded that a sample introduction error has occurred (S11). By such a method, a higher level of qualitative determination accuracy can be achieved than in a conventional qualitative analysis using only the degree of similarity.

4. 发明授权

US10996196B2 Particulate sensor and method for manufacturing particulate sensor 有权
公开(公告)号：US10996196B2
公开(公告)日：2021-05-04
申请号：US16106367
申请日：2018-08-21
申请人： NGK SPARK PLUG CO., LTD.
发明人： Norimasa Osawa , Masayuki Motomura , Keisuke Tashima
IPC分类号： G01N27/626 , G01N27/70
摘要： A particulate sensor (10) to be attached to a gas flow pipe EP through which a gas to be measured EG containing particulates S flows. The particulate sensor (10) includes a gas introduction discharge pipe (31); a discharge element (60) including a discharge electrode member (62) maintained at a discharge potential DV and which electrifies particulates contained in the gas under measurement, and a sealed portion (60C) located on a proximal end side GK of an element distal end portion and in which the discharge electrode member is disposed and insulated from the outer surface (60CS) thereof; a surrounding member (38, 39) maintained at a first potential SGND; and an electrically conductive glass seal (37) which establishes electrical communication between the surrounding member and the pipe (31), and is in close contact with the outer surface of the sealed portion of the discharge element to provide gastight sealing.

5. 发明授权

US10975829B2 Spark plug combustion ionization sensor 有权
公开(公告)号：US10975829B2
公开(公告)日：2021-04-13
申请号：US16861578
申请日：2020-04-29
申请人： IC LLC
发明人： Kamal A. Assaad
IPC分类号： G01N27/70 , F02P13/00 , H01T13/41 , H01T13/38 , H01T13/32 , H01T13/46 , F02P5/15 , F02P17/12
摘要： A spark plug combustion ionization sensor for measuring ion current inside the cylinder of an internal combustion engine. The sensor measures ion current which flows when the energy released during combustion ionizes the air inside the cylinder, and thus can detect combustion and emission parameters. The spark plug combustion ionization sensor generally includes an insulated, dedicated sensing electrode, separate from the sparking electrode of a spark plug. The sensing electrode may also be shielded to further reduce interference such as electromagnetic interference (EMI). The use of a dedicated electrode allows for ion current measurement with less electromagnetic noise from the ignition process, and also eliminates the need for circuitry that is typically necessary when the sparking electrode is also used to sense ion current.

6. 发明授权

US10859531B2 Ionizer monitoring system and ion sensor 有权
公开(公告)号：US10859531B2
公开(公告)日：2020-12-08
申请号：US16126157
申请日：2018-09-10
申请人： NRD LLC
发明人： Timothy Maroni , Jeremy Paul Willden , Martin Robert Johnson , Helaman David Pratt Ferguson , John Patrick Filoso , Jonathan Scott Jensen , Victor Habinshuti , Derek Brim , Spencer Ralph Dodge , Robert Edmund Gooch , Gary Burridge , John M. Glynn, II
IPC分类号： G01N27/70 , H05K7/14 , H05K1/18 , H05K1/14 , H05F3/06
摘要： A sensor for sensing ions, comprising a circuit board assembly, and a core assembly connected to the circuit board assembly, the core including a first electrical conductor and a second electrical conductor.

7. 发明授权

US10739310B2 Photoionization detector ultraviolet lamp 有权
公开(公告)号：US10739310B2
公开(公告)日：2020-08-11
申请号：US16349068
申请日：2016-11-11
申请人： HONEYWELL INTERNATIONAL INC.
发明人： Aimin Su , Zhongxing Cao , Bing Chen , Feng Liang
IPC分类号： G01N27/70 , H01J61/16 , H01J61/35 , G01N27/64
摘要： Embodiments relate generally to an ultraviolet lamp (100) for use with a photoionization detector comprising a sealed tube (102) configured to contain at least one gas; a coating (120) applied to the inner surface (110) of the sealed tube (102); and a crystal window (112) attached to the sealed tube (102), configured to allow transmittance of ultraviolet (UV) light generated within the sealed tube (102). Additional embodiments include a method of forming an ultraviolet lamp (100) for use with a photoionization detector, the method comprising applying at least one layer of a coating (120) onto an inner surface (110) of a sealed tube (102); sealing a crystal window (112) onto the sealed tube (102); filling the sealed tube (102) with at least one gas; sealing the sealed tube (102) containing the at least one gas; generating ultraviolet radiation using the at least one gas within the sealed tube (102); and directing the generated ultraviolet radiation through the crystal window (112) toward a sample gas in the photoionization detector.

8. 发明授权

US10502710B2 Particulate matter measurement apparatus and method 有权
公开(公告)号：US10502710B2
公开(公告)日：2019-12-10
申请号：US15614992
申请日：2017-06-06
申请人： CAMBRIDGE ENTERPRISE LIMITED , ALPHASENSE, LIMITED
发明人： Simone Hochgreb , Robert Nishida , Adam Boies , John Saffell
IPC分类号： G01N27/62 , G01N27/70 , B03C3/02 , G01N15/02 , G01N15/06 , G01N15/10 , B03C3/017 , B03C3/38 , B03C3/47 , B03C3/49
CPC分类号： G01N27/70 , B03C3/017 , B03C3/025 , B03C3/383 , B03C3/47 , B03C3/49 , G01N15/0266 , G01N15/0656 , G01N15/1031 , G01N15/0606
摘要： Particle measurement apparatus comprises an inlet for receiving a gas sample for analysis, a photoionisation chamber, at least one light source arranged to illuminate an interior of the photoionisation chamber, first and second electrodes coupled to a power source and configured to provide a DC potential difference across at least a portion of the photoionisation chamber, and an outlet, together defining a gas flow path from the inlet, through the photoionisation chamber, and towards the outlet.

9. 发明授权

US10302542B2 Particulate detection system 有权
公开(公告)号：US10302542B2
公开(公告)日：2019-05-28
申请号：US15598376
申请日：2017-05-18
申请人： NGK SPARK PLUG CO., LTD.
发明人： Hidekazu Minami , Kaoru Hisada
IPC分类号： G01N15/00 , G01N15/06 , F02D41/20 , F02D41/22 , G01N27/70 , F01N13/00 , G01N1/22 , F02D41/14
摘要： In a particulate detection system (10), a control board (911), a high voltage generation board (913) and an isolation transformer (720) are respectively disposed in a first space (921d) and a second space (921e) separated from each other by an inner case (923). When electromagnetic noise is generated in the high voltage generation board (913) and the isolation transformer (720); specifically, at the primary winding of the isolation transformer 720, at the time of switching the primary current supply, the electromagnetic noise is blocked by the inner case (923). This configuration reduces the influence of electromagnetic noise generated in the primary winding on the control board (911).

10. 发明申请

US20190072520A1 ELECTRIC-CHARGE GENERATING ELEMENT AND PARTICLE COUNTER 审中-公开
公开(公告)号：US20190072520A1
公开(公告)日：2019-03-07
申请号：US16184123
申请日：2018-11-08
申请人： NGK INSULATORS, LTD.
发明人： Kazuyuki MIZUNO , Hidemasa OKUMURA , Keiichi KANNO
IPC分类号： G01N27/68 , G01N15/10 , G01N27/70 , H01T23/00
摘要： An electric-charge generating element that generates electric charges by gaseous discharge includes a dielectric layer, a discharge electrode disposed on one surface of the dielectric layer, a ground electrode disposed on the other surface or inside of the dielectric layer and a nozzle that is disposed in the dielectric layer at a position such that the nozzle does not interfere with the discharge electrode and the ground electrode so as to penetrate through the dielectric layer.

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