公开(公告)号：US11300499B2

公开(公告)日：2022-04-12

申请号：US16885466

申请日：2020-05-28

申请人： Dalian University of Technology

发明人： Zhenfeng Gong ,  Tianli Gao ,  Yewei Chen ,  Qingxu Yu

IPC分类号： G01N21/17 ,  G01N21/03 ,  G01N21/01

摘要： The present invention belongs to the technical field of trace gas detection, and relates to a multi-cavity semi-open resonant photoacoustic cell and a multi-gas simultaneous measurement system. The photoacoustic cell includes multiple resonant cavities. Each resonant cavity has a unique length and a unique resonant frequency, so each resonant cavity corresponds to one to-be-measured gas. A sensitive diaphragm of an acoustic sensor is fixed on one end face of the photoacoustic cell. Photoacoustic signals of different frequencies generated in the resonant cavities act on the sensitive diaphragm of the acoustic sensor, causing the sensitive diaphragm of the acoustic sensor to vibrate periodically. Concentration information of multiple to-be-measured gases can be obtained by analyzing the vibration of the sensitive diaphragm of the acoustic sensor.

公开(公告)号：US11280741B2

公开(公告)日：2022-03-22

申请号：US16616232

申请日：2018-07-17

申请人： HORIBA Advanced Techno, Co., Ltd.

发明人： Kazuya Nakagawa ,  Hideki Nakayama ,  Kimihiko Arimoto ,  Yoko Nakai

IPC分类号： G01N21/76 ,  G01N21/01 ,  G01N35/04 ,  G01N21/17 ,  G01N21/13 ,  G01N35/02 ,  B01L9/06

摘要： The present invention is one that intends to achieve improvements in both analysis efficiency and analysis accuracy without difficulty, and a biological substance analysis device that analyzes light derived from a biological substance in a sample, and the biological substance analysis device includes: a holder that holds multiple containers containing the sample; a photodetector that is fixed at a predetermined position; a holder driving mechanism that moves the holder to position each of the containers held in the holder at a detection position by the photodetector in sequence; and a light shielding mechanism that, while guiding light emitted from the sample in a container at the detection position to the photodetector, prevents light emitted from the sample in the other containers from being guided to the photodetector.

公开(公告)号：US20220062908A1

公开(公告)日：2022-03-03

申请号：US17233482

申请日：2021-04-17

申请人： Hangzhou AnYu Technologies Co., Ltd.

发明人： Xianjun ZHANG ,  Jianhong LING ,  Yong FANG ,  Zhaokang XUAN

IPC分类号： B01L7/00 ,  B01L9/00 ,  G01N21/64 ,  G01N21/01

摘要： A carrying module and a detection device containing the same. The carrying module includes a main body. A top of the main body is provided with a plurality of cavities. The plurality of cavities is configured to accommodate a sample. A side of the main body is provided with a plurality of channels. The plurality of channels communicates with the plurality of cavities in one-to-one correspondence.

公开(公告)号：US11255787B2

公开(公告)日：2022-02-22

申请号：US16482677

申请日：2017-07-06

申请人： SHAANXI NORMAL UNIVERSITY

发明人： Yu Fang ,  Ruijuan Wen

IPC分类号： G01N21/01 ,  G01N21/64 ,  G01T1/20 ,  G01N21/17

摘要： A laminated fluorescent sensor includes a sealable sensor housing and an optical sensing system embedded inside the sealable sensor housing. The optical sensing system includes a light source (7), a short wave pass filter (8), an air chamber (10), a sensing unit, a long wave pass filter set (12) and an optical signal collecting unit from top to bottom all of which are coaxially set. The optical signal collecting unit is connected with a signal processing system (14); the sealable sensor housing has air inlets (2, 201) and an air pumping port (3), the air inlets (2, 201) are communicated with the air chamber (10) through an air intake passage, the air chamber (10) is communicated with the air pumping port (3) through an air pumping passage.

公开(公告)号：US11243168B2

公开(公告)日：2022-02-08

申请号：US16330986

申请日：2017-09-19

申请人： SAIPEM S.p.A.

发明人： Cristina Cerrone ,  Lino Carlessi ,  Alberto Serrafero ,  Francesco Viola

IPC分类号： G01N21/65 ,  G01N1/22 ,  G01N21/15 ,  G01N21/85 ,  G01N21/01 ,  G01N1/10 ,  C07C273/04

摘要： A system for analysis of vent gas of a urea plant, comprising: a Raman spectroscope; a sampling conduit that connects the spectroscope to a main pipe of the urea plant configured to convey a sample stream to be analysed to the spectroscope; and a temperature-adjusting device, operated by a temperature controller and acting on at least one thermal treatment portion of the conduit configured to adjust the temperature of the sample stream circulating in the conduit.

公开(公告)号：US11238303B2

公开(公告)日：2022-02-01

申请号：US16848406

申请日：2020-04-14

申请人： GETAC TECHNOLOGY CORPORATION

发明人： Kun-Yu Tsai

IPC分类号： G01N21/3581 ,  G06K9/46 ,  G06T7/586 ,  G06T7/00 ,  G06K9/00 ,  G06K9/20 ,  G06K9/32 ,  G06K9/62 ,  G06N3/08 ,  G01N21/88 ,  G06T7/40 ,  G06N3/04 ,  G06T7/11 ,  G01J3/28 ,  G01N21/956 ,  G06T7/45 ,  G06F17/16 ,  G06N3/063 ,  G01N21/01 ,  G01N21/952

摘要： An image scanning method for a metallic surface and an image scanning system thereof are provided. The method includes sequentially moving one of a plurality of areas on a metallic surface of an object to a detection position, providing far infrared light by a light source component facing the detection position, wherein a light wavelength of the far infrared light is associated with the object, the far infrared light illuminating the detection position with a light incident angle of less than or equal to 90 degrees relative to a normal line of the area located at the detection position, and capturing a detection image of each of the areas sequentially located at the detection position by a photosensitive element according to the far infrared light, wherein the photosensitive element faces the detection position and a photosensitive axis of the photosensitive element is parallel to the normal line.

公开(公告)号：US11235295B2

公开(公告)日：2022-02-01

申请号：US16233927

申请日：2018-12-27

申请人： Gen-Probe Incorporated ,  Qualigen, Inc.

发明人： Scott S. Breidenthal ,  Richard S. Lee ,  Norman C. Nelson ,  Matthew J. Scott ,  Jason A. Taylor

IPC分类号： B01L3/00 ,  B01F11/00 ,  B01F13/00 ,  B01L7/00 ,  G01N21/64 ,  B01F15/00 ,  G01N21/01 ,  C12Q1/6844 ,  G01N1/44 ,  G01N35/00 ,  C12N15/10 ,  B01F3/12 ,  C12Q1/6806

摘要： A method of processing a sample in a receptacle comprising a plurality of chambers. Each of the chambers is connected to at least one other chamber by a portal and at least a first one of the chambers is formed of a flexible material. The method includes the steps of causing gas bubbles contained in the first chamber to accumulate in a portion of the first chamber, applying a compressive external force to the first chamber to cause some or all of the liquid contents of the first chamber to flow into an interconnected second chamber through a portal connecting the first and second chambers; and preventing the gas bubbles accumulated in a portion of the first chamber from flowing through the portal into the second chamber.

公开(公告)号：US11231356B2

公开(公告)日：2022-01-25

申请号：US17285932

申请日：2020-05-29

申请人： DARTMOUTH OCEAN TECHNOLOGIES INC.

发明人： Edward Arthur Luy ,  Sean Christopher Morgan ,  Vincent Joseph Sieben

IPC分类号： G01N21/01

摘要： An optical cell for performing light spectroscopy (including absorbance, fluorescence and scattering measurements) on a liquid sample in microfluidic devices is disclosed. The optical cell comprises an inlaid sheet having an opaque material inlaid in a clear material, and a sensing channel that crosses the clear material and the opaque material provides a fluidic path for the liquid sample and an optical path for probe light. Integral optical windows crossing a clear-opaque material interface permit light coupling into and out of the sensing channel, and thus light transmission through the sensing channel is almost entirely isolated from background light interference. A microfluidic chip comprising one or more optical cells is also disclosed. The optical cells may have different lengths of sensing channels, and may be optically and fluidly coupled. A method of manufacturing an optical cell in a microfluidic chip is also disclosed.

公开(公告)号：US11224879B2

公开(公告)日：2022-01-18

申请号：US16482293

申请日：2018-02-06

申请人： Konica Minolta, Inc.

发明人： Takatoshi Kaya ,  Tomonori Kaneko

IPC分类号： B01L3/00 ,  G01N21/01 ,  G01N21/64 ,  G01N21/65

摘要： An inspection chip according to the present invention is an inspection chip for stirring liquid by a circular movement of a bottom surface end, including a well main body for accommodating the liquid and a side wall member arranged on a side surface of the well main body. The bottom surface end has a bottom surface structure in contact with a rotating member for allowing the bottom surface end to perform the circular movement in a position leaning from a center line of the well main body toward the side wall member.

公开(公告)号：US20220011223A1

公开(公告)日：2022-01-13

申请号：US17327172

申请日：2021-05-21

申请人： Analog Devices, Inc.

发明人： Shrenik DELIWALA

IPC分类号： G01N21/3504 ,  G01N21/01

摘要： System and apparatus for robust, portable gas detection. Specifically, this disclosure describes apparatuses and systems for optical gas detection in a compact package using two optical pathways. There is a need for a very compact, low-power, gas detection system for gases such as CO2, NOx, water vapor, methane, etc. This disclosure provides an ultra-compact and highly stable and efficient optical measurement system based on principals of optical absorption spectroscopy using substantially collinear pathways.