公开(公告)号：US20240288414A1

公开(公告)日：2024-08-29

申请号：US18572275

申请日：2022-05-25

Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION ,  SINOPEC RESEARCH INSTITUTE OF SAFETY ENGINEERING CO., LTD.

Inventor： Junjie FENG ,  Bing SUN ,  Huiyun JIANG ,  Yan JIN ,  Anshan XIAO ,  Haozhi WANG ,  Shiqiang WANG

IPC: G01N33/18 ,  G01N21/78

CPC classification number: G01N33/18 ,  G01N21/78 ,  G01N2201/121 ,  G01N2201/1296

Abstract: Described are a water quality testing method and a water quality testing apparatus. The testing method includes: obtaining, in a first environment, a testing sample including a target testing object; selecting a reference object according to the testing sample, and respectively acquiring the chroma of the reference object in a second environment and in the first environment; constructing a correction model according to the chroma of the reference object in the second environment and in the first environment; obtaining the chroma of the testing sample in the first environment; according to the chroma of the testing sample in the first environment and the correction model, obtaining the chroma of the testing sample in the second environment; and according to a preset standard curve and the chroma of the testing sample in the second environment, obtaining the concentration of the target testing object in the testing sample.

公开(公告)号：US20240280483A1

公开(公告)日：2024-08-22

申请号：US18571624

申请日：2021-07-14

Applicant: Hitachi High-Tech Corporation

Inventor： Takeru UTSUGI ,  Toshifumi HONDA ,  Kenshiro OHTSUBO

IPC: G01N21/45 ,  G01N21/88 ,  G01N21/95

CPC classification number: G01N21/45 ,  G01N21/8806 ,  G01N21/9501 ,  G01N2021/8848 ,  G01N2201/121

Abstract: Provided is a technique capable of reducing an influence of an inter-beam phase difference unrelated to a defect and accurately detecting even a defect having a low aspect ratio by a defect inspection device using differential interference contrast. To achieve the above purpose, provided is the defect inspection device using differential interference contrast that inspects a specimen using light. The defect inspection device includes: a light source configured to emit a light beam; a polarized light separation element configured to split the light beam into a first beam and a second beam which are polarized and orthogonal to each other; a sensor configured to detect a signal from the first beam and the second beam reflected from the specimen; and a processing processor configured to process the signal detected by the sensor. The processing processor uses a signal string obtained based on information around a measured point to be measured on the specimen to correct a measured signal at the measured point.

公开(公告)号：US20240230541A1

公开(公告)日：2024-07-11

申请号：US18001502

申请日：2022-11-30

Applicant: YELLOSIS, INC.

Inventor： Yu Kyung TAK ,  Jong Gun LEE

IPC: G01N21/78 ,  G01N21/84 ,  G01N21/77

CPC classification number: G01N21/78 ,  G01N21/8483 ,  G01N2021/7796 ,  G01N2201/121 ,  G01N2201/126 ,  G01N2201/12746

Abstract: According to various embodiments, there is provided an electronic device including a first housing having a bottom surface formed to be disposed on a specific portion of a top surface of a toilet, a second housing connected to one side of the first housing, a third housing connected to another side of the first housing and having a shape extending from a point connected to the first housing by a specific length in a direction associated with a first curvature, and a detection unit having a shape of a second curvature corresponding to the first curvature, and the detection unit is rotatably coupled to at least a portion of the third housing.

公开(公告)号：US11965822B2

公开(公告)日：2024-04-23

申请号：US17761377

申请日：2021-05-18

Applicant: MEGA CRYSTAL BIOTECHNOLOGY SINGAPORE PTE. LTD

Inventor： Yi-Sheng Ting ,  Yu-Tsung Chen

IPC: G01N21/25 ,  G01N21/359 ,  G01N21/39 ,  H05B45/18

CPC classification number: G01N21/255 ,  G01N21/359 ,  G01N21/39 ,  H05B45/18 ,  G01N2201/0694 ,  G01N2201/121 ,  G01N2201/125

Abstract: A light emitting apparatus has light emitting units. The light emitting units can be respectively provided with current densities, so that the light emitted by each of the light emitting unit has a light intensity, wherein the current densities are different from each other, or partial of the current densities are different from each other. A number of the light emitting units can be larger than or equal to four, all of the four lighting frequencies of the four light emitting units are different from each other, or partial of the four lighting frequencies of the four light emitting units are identical to each other, and the light emitting apparatus and the object under test rotate relative to each other. A light emitting method, a spectrum detection method and a lighting correction method are also illustrated for increasing SNR, correcting the light intensity or the spectrum signal.

公开(公告)号：US20240085685A1

公开(公告)日：2024-03-14

申请号：US18246340

申请日：2021-10-05

Applicant: SONY GROUP CORPORATION

Inventor： TETSURO KUWAYAMA ,  HIROKAZU TATSUTA

IPC: G02B21/36 ,  G01N21/27 ,  G01N21/64 ,  G02B21/06

CPC classification number: G02B21/365 ,  G01N21/27 ,  G01N21/64 ,  G02B21/06 ,  G01N2201/10 ,  G01N2201/121 ,  G02B2207/113

Abstract: Suppressing deterioration in analysis accuracy on an image. A biological specimen detection system includes: a stage (20) capable of supporting a sample including a biological specimen; an observation system (40) that includes an objective lens (44) and observes the sample in a line-shaped visual field that is a part of a visual field through the objective lens; a signal acquisition unit (1) that acquires an image signal obtained from the sample by scanning the observation system in a first direction orthogonal to the line-shaped visual field; and a correction unit (24) that corrects distortion of a captured image based on the image signal on a basis of a positional relationship between an optical axis center of the objective lens and the line-shaped visual field.

公开(公告)号：US20230243988A1

公开(公告)日：2023-08-03

申请号：US18295239

申请日：2023-04-03

Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.

Inventor： Xinyu LYU ,  Qixiang ZHANG ,  Wenbing SONG ,  Zijun JI ,  Weiping LIU

IPC: G01T7/00 ,  G01T1/29 ,  G01N23/2206

CPC classification number: G01T7/005 ,  G01T1/2985 ,  G01N23/2206 ,  G01N2223/071 ,  G01N2201/1245 ,  G01N2223/304 ,  G01N2201/12746 ,  G01N2223/303 ,  G01N2201/121

Abstract: A method and system for calibrating a PET scanner are described. The PET scanner may have a field of view (FOV) and multiple detector rings. A detector ring may have multiple detector units. A line of response (LOR) connecting a first detector unit and a second detector unit of the PET scanner may be determined. The LOR may correlate to coincidence events resulting from annihilation of positrons emitted by a radiation source. A first time of flight (TOF) of the LOR may be calculated based on the coincidence events. The position of the radiation source may be determined. A second TOF of the LOR may be calculated based on the position of the radiation source. A time offset may be calculated based on the first TOF and the second TOF. The first detector unit and the second detector unit may be calibrated based on the time offset.

公开(公告)号：US20230204496A1

公开(公告)日：2023-06-29

申请号：US18058455

申请日：2022-11-23

Applicant: ROCKLEY PHOTONICS LIMITED

Inventor： Benjamin VER STEEG ,  Craig GARDNER ,  Haydn Frederick JONES

IPC: G01N21/27

CPC classification number: G01N21/274 ,  G01N2201/121 ,  G01N2201/12753 ,  G01N2201/12792

Abstract: An optical sensor for spectroscopic analysis of a sample, the optical sensor comprising: a photonic integrated chip (PIC) for providing light to the sample, the PIC comprising: one or more laser(s) designed to operate at one or more respective predetermined wavelength(s), each of the one or more laser(s) having an output that is optically coupled to an optical output of the PIC; and a monitor located on the PIC for determining the wavelength of the optical output; the optical sensor further comprising: a detector for collecting a spectrum from the sample; and one or more processors configured to: compare the wavelength of the laser(s) at the optical output with each of their respective predetermined wavelength(s); and if a deviation above a certain threshold is detected between the wavelength of the laser(s) and the predetermined wavelength(s), adapt the collected spectrum to generate a reconstructed spectrum; and use one or more datapoints from the reconstructed spectrum for the spectroscopic analysis.

公开(公告)号：US11650155B2

公开(公告)日：2023-05-16

申请号：US17390074

申请日：2021-07-30

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Yuta Suzuki ,  Yuma Kitagawa ,  Toshiyuki Saruya ,  Nobuhiko Kanbara

IPC: G01N21/61

CPC classification number: G01N21/61 ,  G01N2201/068 ,  G01N2201/0612 ,  G01N2201/121

Abstract: A gas analysis system, includes: a light-emitting element that emits a laser light modulated by a predetermined modulation frequency; and a light-receiving element that: receives the laser light that has passed through a measurement target gas; and upon receiving the laser light, outputs a received signal having an N-frequency that is n times the predetermined modulation frequency, wherein n is an integer no less than 2; and a signal processing device that: calculates a third component by removing, from a first component having the N-frequency, a second component, wherein the second component is a component of optical interference noise arising on an optical path of the laser light from the light-emitting element to the light-receiving element and has the same frequency as the first component; and calculates, based on a magnitude of the third component, a concentration of the measurement target gas.

公开(公告)号：US20190187064A1

公开(公告)日：2019-06-20

申请号：US16162408

申请日：2018-10-17

Applicant: OMRON Corporation

Inventor： Yutaka KATO

IPC: G01N21/88 ,  G01B11/245 ,  G01B11/25

CPC classification number: G01N21/88 ,  G01B11/245 ,  G01B11/25 ,  G01N2201/121 ,  G06K9/00201 ,  G06K9/2018 ,  G06K9/2027 ,  G06K2209/19

Abstract: It is to perform image measurement under appropriate conditions according to a position in image data. An image processing device acquires a plurality of pieces of image data generated by imaging in a plurality of different light emission states of a plurality of light emitting units included in an illumination device. The image processing device generates image data to be used for image measurement on the basis of the plurality of pieces of acquired image data and a generation condition defined in association with the position in the image data.

公开(公告)号：US20180249911A1

公开(公告)日：2018-09-06

申请号：US15449195

申请日：2017-03-03

Applicant: Canon USA Inc.

Inventor： Masaki Hosoda ,  Haruo Nakaji

IPC: A61B5/00 ,  G01D5/347 ,  G01N21/47

CPC classification number: A61B5/0075 ,  A61B5/021 ,  A61B5/026 ,  A61B5/6826 ,  G01N21/474 ,  G01N21/4785 ,  G01N2021/4742 ,  G01N2021/4778 ,  G01N2201/121

Abstract: A DWS apparatus includes a coherent light source, a photodetector, a control unit which can measure an intensity autocorrelation function, a measuring unit which can measure a source-detector distance to obtain source-detector distance data, and a calibrating unit which adjusts the intensity autocorrelation function by using the source-detector distance data. The calibrating unit calibrates the intensity autocorrelation function by adjusting the time constant of the autocorrelation function based on a comparison of the source-detector distance to the time constant of the intensity autocorrelation function.