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1. 发明授权

US11561208B2 Thermoresistive gas sensor 有权
公开(公告)号：US11561208B2
公开(公告)日：2023-01-24
申请号：US16713245
申请日：2019-12-13
申请人： Siemens Aktiengesellschaft
发明人： Stefan Klehr , Günter Marcaux
IPC分类号： G01N30/66 , G01N25/18 , G01N30/02 , G01N30/30 , G01F1/684 , G01F1/69 , G01F1/692 , G01N25/20
摘要： A thermoresistive gas sensor includes two identical, flat meshes that consist of a semiconductor material with a predetermined type of conductivity and that are interconnected in sections of an electric measuring bridge that are diametrically opposite one another, wherein each mesh of the two identical, flat meshes has mesh webs that extend parallel, adjacent to one another and that are connected electrically in parallel at the ends, where the mesh webs of the two meshes extend alternately adjacent to one another in a shared mesh plane horizontally across a window opening in a carrier plate.

2. 发明授权

US11480552B2 Method for measuring content of moisture in secondary battery separator 有权
公开(公告)号：US11480552B2
公开(公告)日：2022-10-25
申请号：US16343261
申请日：2018-01-03
申请人： LG Chem, Ltd.
发明人： Min-Jeong Lee , Jong-Mo Jung
IPC分类号： G01N30/66 , G01N1/40 , G01N1/22 , H01M10/42 , H01M10/48 , G01N30/02 , B32B27/32 , H01M50/40 , H01M50/409 , H01M50/411 , H01M50/446 , H01M50/449
摘要： The present invention provides a method for measuring moisture content in a separator of secondary battery by using a gas chromatograph equipped with a headspace sampler. The separator of secondary battery may be a safety reinforced separator (SRS) in which inorganic substance particles and a binder polymer are coated on a polyolefin substrate.

3. 发明授权

US11243180B2 Thermal conductivity detector 有权
公开(公告)号：US11243180B2
公开(公告)日：2022-02-08
申请号：US16760599
申请日：2017-12-19
申请人： SHIMADZU CORPORATION
发明人： Yuji Nakama
IPC分类号： G01N25/18 , G01N30/66
摘要： Provided is a thermal conductivity detector including a detection channel through which a gas to be measured flows as a fluid, a heat conducting part that includes at least a filament provided at a position in the detection channel at which the filament is in direct contact with the fluid flowing through the detection channel, the filament being folded at least once in a direction substantially parallel to a flow direction of the fluid flowing through the detection channel, and that conducts heat via the fluid flowing through the detection channel, and a detection circuit that detects an electric signal in accordance with a change in current or voltage of the filament. The filament is folded by being holed on a folding pin provided substantially perpendicular to the flow direction in the detection channel, and the folding pin has a position shift prevention structure for preventing a fold of the filament hooked on the folding pin from shifting in a longitudinal direction of the folding pin.

4. 发明申请

US20200209201A1 DEVICES AND METHODS OF USE THEREOF 审中-公开
公开(公告)号：US20200209201A1
公开(公告)日：2020-07-02
申请号：US16646248
申请日：2018-09-11
申请人： NORTH CAROLINA STATE UNIVERSITY
发明人： Milad ABOLHASANI , Robert W. EPPS , Kobi C. FELTON
IPC分类号： G01N30/60 , G01N30/30 , G01N30/66 , G01N30/24
摘要： Disclosed herein are devices comprising: a sample conduit providing a path for fluid flow extending from a sample inlet to a sample outlet; a thermal housing enclosing the sample conduit, wherein the thermal housing comprises a plurality of measurement regions; and a motorized stage translatable along the thermal housing from a first location to a second location so as to align a detector with one or more of the plurality of measurement regions. Also disclosed are methods of use of the devices described herein.

5. 发明授权

US10408802B2 Thermal conductivity sensing device, methods for operation and uses of the same 有权
公开(公告)号：US10408802B2
公开(公告)日：2019-09-10
申请号：US15529944
申请日：2015-11-27
申请人： Cambridge Enterprise Limited
发明人： Vasant Ramachandran Kumar , Sohab Sarfraz , Florin Udrea
IPC分类号： G01N30/66 , G01N25/18 , G01N27/18 , G01N30/60 , G01N33/497
摘要： A thermal conductivity sensing device (1) is disclosed, along with a method for operation of the thermal conductivity sensing device and use of the thermal conductivity sensing device in a system for gas chromatography and a method of carrying out gas chromatography. The thermal conductivity sensing device is for use in sensing one or more gaseous components in a flowing gaseous environment. The device has a first sensor (4B) and a second sensor (4A) for exposure to the same flowing gaseous environment (G). The first sensor has an associated flow altering means (20) to affect gas flow at least at part of the surface of the first sensor, to be different to gas flow at the surface of the second sensor. Each sensor provides an output relating to heat transfer between a surface of the sensor and the gaseous environment. The device is operable to compare outputs of the first and second sensors. The sensor is able to reduce the effects of bulk convection of the flowing gas on thermal conductivity measurements.

6. 发明申请

US20190128858A1 ANALYSIS METHOD AND ANALYSIS DEVICE 审中-公开
公开(公告)号：US20190128858A1
公开(公告)日：2019-05-02
申请号：US16161437
申请日：2018-10-16
申请人： Shimadzu Corporation
发明人： Shinji Uchiyama
IPC分类号： G01N30/66 , G01N27/62
摘要： To increase the difference between the thermal conductivity of the carrier gas and the thermal conductivity of each component of the sample gas. The analysis method is an analysis method that performs analysis using a gas chromatograph including a thermal conductivity detector. The analysis method includes introducing a carrier gas and a sample gas into a separation column, introducing the sample gas separated in the separation column into a gas introduction chamber including an element having an electrical characteristic changed by temperature, detecting a change in the electrical characteristic of the element due to the sample gas being introduced, and switching the carrier gas from a first carrier gas to a second carrier gas that is a different type from the first carrier gas, while a component of the sample gas is passing through the separation column

7. 发明授权

US10274447B2 Thermal conductivity detector and gas chromatograph 有权
公开(公告)号：US10274447B2
公开(公告)日：2019-04-30
申请号：US15665712
申请日：2017-08-01
申请人： SHIMADZU CORPORATION
发明人： Yuji Nakama
IPC分类号： G01N27/18 , G01N25/18 , G01N30/66 , G01N30/02 , G01N30/12
摘要： Detection sensitivity of a single-filament thermal conductivity detector is to be increased. A thermal conductivity detector is a single-filament thermal conductivity detector, and includes a measurement cell, a phase switching mechanism, and a measurement section. The measurement section starts measurement of thermal conductivity of a sample gas after a lapse of a sample gas measurement start time that is set in advance, after a reference phase is switched to a sample phase by the phase switching mechanism, and starts measurement of thermal conductivity of a reference gas after a lapse of a reference gas measurement start time that is set in advance as a length of time different from the sample gas measurement start time, after the sample phase is switched to the reference phase by the phase switching mechanism.

8. 发明授权

US10024829B2 Manifolds and methods of using them to control fluid flows 有权
公开(公告)号：US10024829B2
公开(公告)日：2018-07-17
申请号：US14499383
申请日：2014-09-29
申请人： PERKINELMER HEALTH SCIENCES, INC.
发明人： Andrew Tipler , John Irion
IPC分类号： G01N33/66 , G01N30/66 , G01N30/02 , G01N30/88 , G01N30/60 , B01L3/00 , B01D63/00 , G01N25/00 , B01D35/00 , B01D15/18 , B01D53/04 , B01D15/08 , B01D15/26 , G01N30/62
摘要： Certain embodiments described herein are directed to devices that can be used to control fluid flow through one or more detectors. In some configurations, the device can be configured as a manifold that can receive a positive pressure to decouple the flow of fluid through a chromatography column from fluid flow through a detector. In certain configurations, sample flow can be accelerated into a detector cell comprising one or more filaments.

9. 发明授权

US09903770B2 Thermal conductivity detector circuit and method for operating the same 有权
公开(公告)号：US09903770B2
公开(公告)日：2018-02-27
申请号：US14669981
申请日：2015-03-26
申请人： Siemens Aktiengesellschaft
发明人： Glen Eugene Schmidt , Udo Gellert , Aosheng Wang
IPC分类号： G01K17/00 , G01N25/18 , G01N30/66 , G01N30/86
CPC分类号： G01K17/00 , G01N25/18 , G01N30/66 , G01N30/8641
摘要： A thermal conductivity detector includes a switch controllable to short-circuit the input of an amplifier to improve the thermal conductivity detector for use in gas chromatography without the need of an additional reference cell, wherein a digital signal processor calculates a transfer function of an analog signal processor from a digitized difference signal received in response to short-circuiting the input of the amplifier at a given time when solely a reference carrier fluid passes through a measuring cell, and the digital signal processor recovers a detector signal by deconvoluting the digitized difference signal with a transfer function.

10. 发明申请

US20170356890A1 GAS CHROMATOGRAPH 审中-公开
公开(公告)号：US20170356890A1
公开(公告)日：2017-12-14
申请号：US15541935
申请日：2015-01-26
申请人： Shimadzu Corporation
发明人： Maki SAITO
IPC分类号： G01N30/86 , G01N30/54 , G01N30/32 , G01N30/68 , G01N30/02 , G01N30/66
CPC分类号： G01N30/86 , G01N30/02 , G01N30/12 , G01N30/32 , G01N30/54 , G01N30/66 , G01N30/68 , G01N2030/025 , G01N2030/126 , G01N2030/324
摘要： A gas chromatograph is provided which is capable of effectively reducing the amount consumed of a carrier gas, reducing the time and effort required for an operator to manually set parameters, and preventing damages to a column and a detector due to a setting mistake. In a case where a stop operation for the power supply of the gas chromatograph is performed (Yes in step S101), the flow rate of a carrier gas to be supplied to a sample vaporization chamber is decreased and the temperatures of the column and the detector are sufficiently lowered (steps S102 to S104), and then the power supply of the gas chromatograph is switched over from an ON state to an OFF state (step S106).

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