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公开(公告)号：US20240353383A1
公开(公告)日：2024-10-24
申请号：US18636151
申请日：2024-04-15
申请人： FreshAir Sensor, LLC
发明人： Matthew CURTIN , Lauren BROCK
CPC分类号： G01N33/0047 , G01N27/126 , G01N33/0031
摘要： The present disclosure relates to a sensor for selectively detecting a volatile organic compound (VOC) vapor. The sensor comprises an insulating substrate; a pair of interdigitated electrodes disposed on the insulating substrate; a sensing layer of a semi-conductive material disposed on the pair of interdigitated electrodes, the sensing layer exhibiting an electrical property that is dependent on the concentration of the VOC vapor to which the sensing layer is exposed; and a filtering layer of a polymer or metal organic framework disposed on the sensing layer, the filtering layer enhancing the selectivity of the sensing layer to the VOC vapor. The present disclosure also relates to a system for selectively sensing a VOC vapor comprising a plurality of these sensors, a method for selectively detecting a VOC vapor by using these sensors, and a method for producing such sensors.
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公开(公告)号：US20240345022A1
公开(公告)日：2024-10-17
申请号：US18750983
申请日：2024-06-21
发明人： Ling LIU , Feng LIANG
IPC分类号： G01N27/416 , G01N33/00
CPC分类号： G01N27/4163 , G01N33/0047
摘要： Methods, apparatuses, and systems for calculating a compensated reading of a gas sensing apparatus are provided. An example method includes causing a first supply of a working voltage to a sensing circuitry of the gas sensing apparatus, determining a first output of the sensing circuitry, causing a second supply of a stimulate voltage to the sensing circuitry, determining a second output of the sensing circuitry, and calculating a compensated reading of the gas sensing apparatus based at least in part on the first output and the second output.
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公开(公告)号：US20240316606A1
公开(公告)日：2024-09-26
申请号：US18733111
申请日：2024-06-04
申请人： Loci Controls, Inc.
发明人： Andrew J. Campanella , Melinda Sims , Nathan Pallo , Ian Martin
CPC分类号： B09B1/006 , B09B1/00 , E21B43/12 , G01N33/0004 , G01N33/0047
摘要： Devices and techniques related to landfill gas extraction are disclosed. A technique for controlling extraction of landfill gas from a landfill through a gas extraction system is described. The method may include measuring a plurality of values indicating conditions associated with the landfill; computing, based at least in part on the plurality of values and on a model of the landfill, a predicted future state of the landfill; determining, based at least in part on the predicted future state of the landfill, one or more control parameters for one or more respective control devices configured to control operation of the gas extraction system; applying the one or more control parameters to the one or more respective control, and with the one or more control devices, controlling extraction of the landfill gas from the landfill based, at least in part, on the one or more respective control parameters.
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公开(公告)号：US20240302268A1
公开(公告)日：2024-09-12
申请号：US18664157
申请日：2024-05-14
发明人： Junghui CHOI , Keunbum LEE , Changwoo JUNG , Buyoun LEE , Changheon LEE , Sangki CHO
CPC分类号： G01N21/29 , G01N33/0047 , G01N2021/216 , G01N2021/8578 , G01N2201/0221
摘要： An air quality measuring device, according to one embodiment of the present disclosure, includes a top case, a bottom case provided below the top case, a circular light guide unit which is disposed between the top case and the bottom case. The air quality measuring device has an outer portion and an inner portion, and includes a coupling boss positioned around the outer portion so as to be coupled to the top case or the bottom case. The air quality measuring device also includes a light source unit positioned on the inner portion, where the light guide unit has a light exit surface formed on the outer portion and may include a rib which is positioned around the outer portion and protrudes from one surface thereof.
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公开(公告)号：US20240295529A1
公开(公告)日：2024-09-05
申请号：US18478046
申请日：2023-09-29
申请人： Mocon, Inc.
CPC分类号： G01N27/66 , G01N33/0047
摘要： A photoionization detector comprised of a gas discharge lamp that ionizes molecules of interest to create ionized molecules and electrons and a sensor having at least one opening for UV light to pass through and electrically conductive patterns on at least one of the top and bottom surfaces of the plate, including at least a negative electrical potential pattern and an electron collecting electrode pattern. The ionized molecules are collectable by a bias electrode and electrons are collectable by a collector electrode. The negative electrical potential pattern includes a linear portion and a polarization plate. The electron collecting electrode pattern includes a wire suspended across the at least one opening and a linear portion on the surface opposite the wire. The electrically conductive patterns can further include a grounded potential conductive pattern having a first portion on the top surface and a second portion on the bottom surface.
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公开(公告)号：US20240288364A1
公开(公告)日：2024-08-29
申请号：US18584024
申请日：2024-02-22
发明人： Prince Ashwin Kumar Anburaj JAYAKUMAR , Nirmal A KUMAR , Shridhara SHANBHOGUE , M Kantha Raj URS
IPC分类号： G01N21/3518 , G01N33/00 , G02B6/02 , H01M10/48
CPC分类号： G01N21/3518 , G01N33/0047 , G02B6/0208 , H01M10/48 , G01N2201/088
摘要： An example system, method, and computer program product for detecting thermal runaway in a battery cell is provided. The example system includes a light source configured to emit light across a spectrum of wavelengths toward a sensing fiber having a first end and a second end. The sensing fiber may be positioned to receive the light emitted by the light source at the first end. The sensing fiber may further contain a filtering mechanism configured to reflect a portion of the spectrum of wavelengths of the light. In addition, the sensing fiber may be optically coupled to a photodiode at the second end, such that a portion of the light is reflected as the light travels through the sensing fiber. The gas may be detected based at least in part on an intensity of the light received at the photodiode indicating the onset of thermal runaway.
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7.发明公开公开(公告)号：US20240280475A1
公开(公告)日：2024-08-22
申请号：US18396665
申请日：2023-12-26
发明人： Wooyoung LEE , Jung Hyun KIM , Kyusik SHIN , Jae Jung PARK , Youngno KIM , Gaeun KIM , Jihyun LEE
CPC分类号： G01N21/29 , G01N33/0047
摘要： The present disclosure relates to a color change dye prepared by impregnating hollow silica with a dye having a cationic dye and an anionic dye prepared using ion pairing, a sensor for detecting gas containing the above dye and a method for preparing the same, and more specifically to, a sensor that increases sensitivity and stability by increasing the area where the dye touches the gas and protecting the dye itself, since cationic dyes and anionic dyes are ion-paired to increase humidity resistance and react only with a trace amount of acetone. and the ion-paired dyes are then impregnated into hollow silica, and a method for preparing the same.
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公开(公告)号：US12066415B2
公开(公告)日：2024-08-20
申请号：US17554138
申请日：2021-12-17
发明人： Jun Kameoka , Onder Dincel , Ting-Yen Chi
CPC分类号： G01N31/223 , G08C17/02 , G01N33/0047 , G01N33/0054 , G01N33/02
摘要： A system for providing an indication of the presence of molecular structures in a medium is provided. The system includes a radio frequency (RF) wireless antenna, batteryless sensor, and a network analyzer. The sensor has an ultra-high frequency dipole antenna that transmits data to the RF wireless antenna and a sensing element. The sensing element is operatively coupled to the dipolar antenna and detects the presence of molecular structures. When molecular structures are detected, data indicative of the presence of the molecular structures is transmitted to a radio frequency (RF) wireless communication antenna from the dipole antenna. The network analyzer receives the data from the RF wireless antenna and analyzes the data to determine a concentration of molecular structures.
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公开(公告)号：US12019017B2
公开(公告)日：2024-06-25
申请号：US17090090
申请日：2020-11-05
申请人： Lumileds LLC
CPC分类号： G01N21/61 , G01N21/47 , G01N33/0004 , G01N33/004 , G01N33/0047 , G01N2201/0631 , G01N2201/0636
摘要： A gas sensing system can allow a gas sample to permeate hollow spaces within a porous scattering material. The porous scattering material can be substantially transparent at an illumination wavelength. An emitter can illuminate the porous scattering material and the gas sample with light having a spectrum that includes the illumination wavelength. A sensor can detect a level of light that has traversed the porous scattering material. Using, for example, the Beer-Lambert Law, the system can determine a concentration of the gas material in the gas sample. The scattering can greatly increase an optical path length through the porous scattering material, compared with a linear dimension of the porous scattering material. The increased optical path length can allow a gas chamber to shrink in size, thereby decreasing a size of the gas sensing system without a corresponding decrease in a sensitivity and/or an accuracy of the system.
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公开(公告)号：US20240183832A1
公开(公告)日：2024-06-06
申请号：US18528341
申请日：2023-12-04
申请人： Aclima Inc.
发明人： Brian LaFranchi , Rishabh Urvesh Shah , Bassam Samih Dgheim , Todd Langland , Walker Alexander , Davida Herzl , Matthew Hill
IPC分类号： G01N33/00
CPC分类号： G01N33/0047 , G01N33/0037 , G01N33/004
摘要： Detection of volatile organic compounds (VOCs) is disclosed, including: receiving mobile sensor data, wherein the mobile sensor data includes volatile organic compounds (VOC) sensor data and non-VOC sensor data; identifying VOC peaks in the VOC sensor data; identifying non-VOC peaks in the non-VOC sensor data; correlating the VOC peaks with the non-VOC peaks; and determining a source type associated with the VOC peaks based at least in part on the correlation between the VOC peaks and the non-VOC peaks.
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