公开(公告)号：US20230288325A1

公开(公告)日：2023-09-14

申请号：US17654603

申请日：2022-03-14

申请人： THE HONG KONG POLYTECHNIC UNIVERSITY

发明人： Lok Ting LAU ,  Jian Nong CAO ,  Lei ZHANG ,  Nelly Yan Yan LAM ,  Wengen LI ,  Billy HE ,  Bernard Huan CHANG ,  Yee San Issan TAM ,  Teresa CHUNG

IPC分类号： G01N21/3577 ,  G01N33/04

CPC分类号： G01N21/3577 ,  G01N33/04 ,  G01N2021/3595

摘要： In anomaly detection of a substance, a first set of chemical fingerprints is obtained. Each fingerprint in the first set is indicative of a plurality of physiochemical properties for a normal sample of the substance. The first set is converted into a cluster of data points in a multi-dimensional principal component analysis (PCA) plot. Each dimension of the plot is based on a principal component (PC) corresponding to one of the physiochemical properties. A profile pattern of the cluster of data points is constructed as a prediction model to identify a new sample with a chemical fingerprint outside the profile pattern as an anomaly. The prediction model is optimized using a second set of chemical fingerprints. Each chemical fingerprint in the second set is indicative of the plurality of physiochemical properties for testing samples that include normal testing samples and abnormal ones of the substance.

公开(公告)号：US11719826B1

公开(公告)日：2023-08-08

申请号：US17679556

申请日：2022-02-24

申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

发明人： Nilton O. Rennó

IPC分类号： G01N21/33 ,  G01S17/95 ,  G01B11/30 ,  G01N21/359 ,  G01N21/3577 ,  G01B11/02

CPC分类号： G01S17/95 ,  G01B11/02 ,  G01B11/30 ,  G01N21/33 ,  G01N21/359 ,  G01N21/3577

摘要： A method for monitoring the airspace around an aircraft or the road, runway, taxiway, movement area condition or any other object or surface of interest ahead of a vehicle, even in inclement weather is disclosed. The present teachings provide a system for characterizing cloud drops, cloud ice particles, other hydrometeors such drizzle, rain or falling snow, and for distinguishing dry surfaces from those covered by water, snow, frost, and various types of ice even when they cover only a fraction of the field of view of the road condition monitoring system, even in inclement weather.

公开(公告)号：US11686679B2

公开(公告)日：2023-06-27

申请号：US17651811

申请日：2022-02-21

申请人： Asahi Kasei Microdevices Corporation

发明人： Toshiro Sakamoto ,  Tatsushi Yagi

IPC分类号： G01N21/64 ,  G01N21/552 ,  G01N21/3504 ,  G01N21/3577 ,  G02B6/42

CPC分类号： G01N21/552 ,  G01N21/3504 ,  G01N21/3577 ,  G02B6/4215

摘要： An optical waveguide includes a core layer which extends along a longitudinal direction and through which light can propagate; and a protective film that is formed on at least a portion of a surface of the core layer and has a smaller refractive index than the core layer. At least a portion of the protective film is provided in a manner allowing contact with a gas or a liquid. In a cross-section of at least a portion perpendicular to a longitudinal direction of the core layer, the protective film is formed around the entire surface of the core layer.

公开(公告)号：US20230193831A1

公开(公告)日：2023-06-22

申请号：US18096858

申请日：2023-01-13

申请人： ROLLS-ROYCE PLC

发明人： Peter SWANN ,  David M. BEAVEN ,  Craig W. BEMMENT ,  Alastair G. HOBDAY ,  Benjamin J. KEELER ,  Christopher P. MADDEN ,  Martin K. YATES

IPC分类号： F02C9/00 ,  B64D27/10 ,  B64D47/00 ,  G01N33/28 ,  G01N21/64 ,  G01N21/33 ,  G01N21/3577

CPC分类号： F02C9/00 ,  B64D27/10 ,  B64D47/00 ,  G01N33/287 ,  G01N21/64 ,  G01N21/33 ,  G01N21/3577 ,  G01N2021/3595

摘要： A fuel characteristic determination system and method for determining one or more fuel characteristics of an aviation fuel for powering a gas turbine engine of an aircraft. The system includes a sensor component that is formed from a nitrile seal material and includes a surface that can be exposed to the fuel; a sensor for measuring a swell parameter of the seal material; and a fuel characteristics determination module for determining one or more fuel characteristics of the fuel based on the swell parameter. The method includes: exposing one or more seals of a fuel system of an aircraft to fuel within the fuel system; exposing a sensor component, made from the same material as the one or more seals, to the fuel; and measuring a swell parameter of the seal material.

公开(公告)号：US20230168234A1

公开(公告)日：2023-06-01

申请号：US18153665

申请日：2023-01-12

申请人： CARGILL, INCORPORATED

发明人： Jinping DONG ,  Steven HANSEN ,  Jacob SCHALLER ,  Sean SMITH

IPC分类号： G01N33/03 ,  G01J3/42 ,  G01N21/3577 ,  G01N21/359

CPC分类号： G01N33/03 ,  G01J3/42 ,  G01N21/3577 ,  G01N21/359 ,  G01J2003/425

摘要： A characteristic of edible oil may be evaluated using a spectrometer. For example, optical reflectance data may be obtained from edible oil in situ in a frying apparatus housing the edible oil, the reflectance data corresponding to a specified range of infra-red wavelengths. A model profile corresponding to the characteristic being assessed may be obtained, such as from a repository housing a secured library of such profiles. The model profile may define a regression vector for use in transforming the reflectance data to generate a value corresponding to the characteristic being assessed. A criterion may be applied to the value to establish a simplified representation of the characteristic for presentation to a user for assessment of oil quality.

公开(公告)号：US20230118338A1

公开(公告)日：2023-04-20

申请号：US17503724

申请日：2021-10-18

申请人： Rosemount Aerospace Inc.

发明人： Kaare Josef Anderson ,  Mark Ray ,  Kent Allan Ramthun

IPC分类号： B64D15/20 ,  G01N21/3577 ,  G01W1/00

摘要： A method of operating an optical icing conditions sensor includes transmitting a first light beam with a first transmitter and a second light beam with a second transmitter, thereby illuminating two illumination volumes. A first receiver receives the first light beam. A second receiver receives the second light beam. A controller measures the intensity of light received by the first and second receivers. The controller compares the intensities to threshold values and determines if either intensity is greater than the threshold values. The controller determines a cloud is present if either intensity is greater than the threshold values. The controller calculates a ratio of the intensities if a cloud is present. The controller determines, using the ratio, whether the cloud contains liquid water droplets, ice crystals, or a mixture of liquid water droplets and ice crystals.

公开(公告)号：US11621059B2

公开(公告)日：2023-04-04

申请号：US17325310

申请日：2021-05-20

申请人： CHEVRON U.S.A. INC.

发明人： Toni Zhang Miao ,  Huping Luo ,  Hye-Kyung Cho Timken ,  Eddy Lee ,  Bong-Kyu Chang

IPC分类号： G16C20/70 ,  G16C10/00 ,  G16C20/30 ,  C07C2/76 ,  G01N21/3577 ,  G01N33/28 ,  C07C2/66 ,  C07C2/64 ,  G01N21/35 ,  C07C2/68 ,  C07C2/70

摘要： A method is provided for predicting conjunct polymer concentration in spent ionic liquid during a continuous hydrocarbon conversion process.

公开(公告)号：US11513067B2

公开(公告)日：2022-11-29

申请号：US17180632

申请日：2021-02-19

申请人： InnoSpectra Corporation

发明人： Fei-Peng Chang ,  Nan-Yu Chen ,  Hsi-Pin Li

IPC分类号： G01J5/02 ,  G01N21/3577 ,  G01N21/01

摘要： A sample carrier is provided for carrying a liquid sample to be measured by a spectrometer. The sample carrier includes a frame body and a mesh-like carrier body. The frame body has a notch located at the bottom of the frame body. The mesh-like carrier body is fixed to the frame body and located at the notch, the mesh-like carrier body has a plurality of apertures, and the liquid sample is retained in at least some of the apertures. Also provided is a spectrometer including the sample carrier. The sample carrier is capable of carrying the liquid sample and allows simple light path control.

公开(公告)号：US11493432B2

公开(公告)日：2022-11-08

申请号：US16940221

申请日：2020-07-27

申请人： DAYLIGHT SOLUTIONS, INC.

发明人： David F. Arnone ,  Miles James Weida

IPC分类号： G01N21/05 ,  G01N30/72 ,  G01N21/03 ,  G01N21/3577 ,  G01N30/74 ,  G01N30/02 ,  G01N21/39

摘要： A flow cell assembly (16) for a fluid analyzer (14) that analyzes a sample (12) includes (i) a base (350) that includes a base window (350B); (ii) a cap (352) having a cap window (352B) that is spaced apart from the base window (350B); and (iii) a gasket (360) that is secured to and positioned between the base (350) and the cap (352), the gasket (360) having a gasket body (360A) that includes a gasket opening (360B). The gasket body (360A), the base (350) and the cap (352) cooperate to define a flow cell chamber (362). Moreover, an inlet passageway (366) extends into the flow cell chamber (362) to direct the sample (12) into the flow cell chamber (362); and an outlet passageway (368) extends into the flow cell chamber (362) to allow the sample (12) to exit the flow cell chamber (362).

公开(公告)号：US11448598B1

公开(公告)日：2022-09-20

申请号：US17374902

申请日：2021-07-13

申请人： Photon Systems, Inc.

发明人： Rohit Bhartia ,  Michael R. Reid ,  William F. Hug ,  Ray D. Reid

IPC分类号： G01N21/64 ,  G01N21/33 ,  G01N33/569 ,  G01N21/3577 ,  G01N21/359 ,  G01N21/65 ,  G01N21/17

摘要： Methods, apparatus, and systems provide improved identification of selected biohazard and/or biohazard signatures from complex in vivo or in vitro samples and include deep UV native fluorescence spectroscopic analysis for multiple locations of a sample wherein classification results for individual locations are combined and spatially correlated to provide a positive or negative conclusion of biohazard signature presence (e.g., for signatures for viruses, bacteria, and diseases including SARS-CoV-2 and its variants and COVID-19 and its variants). Improvements include one or more of reduced sample processing time (minutes to fractions of a minute), reduced sampling cost (dollars to fractions of a dollar), high conclusion reliability (rivaling real time RT-PCR). Some embodiments may incorporate a stage or scanning mirror system to provide movement of a sample relative to an excitation exposure location. Some embodiments may incorporate Raman or phosphorescence spectroscopic analysis as well as imaging systems.