公开(公告)号：US20240011862A1

公开(公告)日：2024-01-11

申请号：US17998760

申请日：2021-05-14

Applicant: GasPorOx AB

Inventor： Patrik LUNDIN ,  Mikael SEBESTA ,  Anders LÅNGBERG ,  Märta LEWANDER XU

IPC: G01M3/22 ,  G01N21/39 ,  G01N21/03

CPC classification number: G01M3/227 ,  G01N21/39 ,  G01N21/0303 ,  G01N2021/0364 ,  G01N2021/399

Abstract: A system and method is for determining a concentration of at least one gas in a container having at least one side with a flexible area. The system includes a measuring area arranged for receiving the container; a suction device arranged for pulling at least one portion of the flexible area a distance to arranging at least the portion of the flexible area in a position to provide a space underneath at least the portion of the flexible area; an optical sensor, configured to be sensitive to the at least one gas, is arranged in relation to the measuring area for transmitting a light signal through the space and detecting a transmitted light signal; and a controller configured for determining, based on the transmitted light signal, the concentration of the at least one gas in the container.

公开(公告)号：US20230204505A1

公开(公告)日：2023-06-29

申请号：US18060046

申请日：2022-11-30

Applicant: Endress+Hauser Group Services AG

Inventor： Max Bergau ,  Benjamin Scherer

IPC: G01N21/39 ,  G01N33/00

CPC classification number: G01N21/39 ,  G01N33/0027 ,  G01N2021/399

Abstract: A device for detection of a gas or of a multi-component gas mixture comprises: an optical capture unit for capturing a field of view; a first light source configured to emit light having a current wavelength within a first wavelength range, wherein the first light source is arranged such that the light emitted impinges on the field of view; a first optical filter arranged between the optical capture unit and the first light source, wherein the first optical filter enables only those wavelengths of the light in a first filter wavelength range to pass; and a control/evaluation unit configured to determine, based on at least one image recorded by the optical capture unit, the distribution of the gas or the gas mixture in the field of view, the composition of the gas or the gas mixture, and/or a concentration of the components of the gas mixture.

公开(公告)号：US20190195789A1

公开(公告)日：2019-06-27

申请号：US16219136

申请日：2018-12-13

Applicant: NEC Laboratories America, Inc.

Inventor： Da Pan ,  Yue Tian ,  Ming-Fang Huang

IPC: G01N21/39 ,  G01J3/433 ,  G01N21/27

CPC classification number: G01J3/433 ,  G01J3/4338 ,  G01N21/274 ,  G01N21/39 ,  G01N2021/399 ,  G01N2201/127

Abstract: A computer-implemented method for measuring gas concentration from a 2f signal in wavelength modulation spectroscopy is presented. The computer-implemented method includes emitting a beam of light from a laser to pass through a gas sample, calculating a gas measurement value from the gas sample via a trough distance calculator using a trough distance of a gas absorption line's 2f signal, calibrating the gas measurement value via a multi-point calibration process, and outputting the gas measurement value to a user interface of a computing device.

公开(公告)号：US20190187042A1

公开(公告)日：2019-06-20

申请号：US16203901

申请日：2018-11-29

Applicant: 1087 Systems, Inc.

Inventor： Matthias Wagner

IPC: G01N15/14 ,  G01N21/39 ,  G01N21/53 ,  G02B21/00 ,  G01N15/06 ,  G01N15/00 ,  G01N21/35 ,  G01N21/3577

CPC classification number: G01N15/1436 ,  G01N15/00 ,  G01N15/06 ,  G01N15/1434 ,  G01N15/147 ,  G01N15/1475 ,  G01N21/35 ,  G01N21/3577 ,  G01N21/3581 ,  G01N21/39 ,  G01N21/53 ,  G01N21/552 ,  G01N2015/0065 ,  G01N2015/0687 ,  G01N2015/0693 ,  G01N2015/1006 ,  G01N2015/1443 ,  G01N2015/1447 ,  G01N2015/1488 ,  G01N2015/1497 ,  G01N2021/399 ,  G01N2201/068 ,  G01N2201/105 ,  G02B21/0032 ,  G02B21/0036 ,  G02B21/006 ,  G02B21/0064 ,  G02B21/008

Abstract: An analyzer of a component in a sample fluid includes an optical source and an optical detector defining a beam path of a beam, wherein the optical source emits the beam and the optical detector measures the beam after partial absorption by the sample fluid, a fluid flow cell disposed on the beam path defining an interrogation region in the a fluid flow cell in which the optical beam interacts with the sample fluid and a reference fluid; and wherein the sample fluid and the reference fluid are in laminar flow, and a scanning system that scans the beam relative to the laminar flow within the fluid flow cell, wherein the scanning system scans the beam relative to both the sample fluid and the reference fluid.

公开(公告)号：US20190150748A1

公开(公告)日：2019-05-23

申请号：US16241628

申请日：2019-01-07

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/42 ,  G01N33/49 ,  G01J3/28 ,  G01N21/88 ,  G01J3/453 ,  G01N21/359 ,  A61B5/1455 ,  G01J3/02 ,  A61B5/145 ,  G01J3/14 ,  G01J3/10 ,  G01N33/15 ,  G16H40/67 ,  G01N33/02 ,  G01N33/44 ,  G01N21/35 ,  G01N21/39 ,  G01N21/3563

CPC classification number: A61B5/0088 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4547 ,  A61B5/6801 ,  A61B5/7257 ,  A61B5/7405 ,  A61B5/742 ,  A61B2562/0233 ,  A61B2562/0238 ,  A61B2562/146 ,  A61B2576/02 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/14 ,  G01J3/1838 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/453 ,  G01J2003/104 ,  G01J2003/1208 ,  G01J2003/2826 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/9508 ,  G01N33/02 ,  G01N33/025 ,  G01N33/15 ,  G01N33/442 ,  G01N33/49 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N2201/061 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/08 ,  G01N2201/12 ,  G01N2201/129 ,  G06F19/00 ,  G16H40/67 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302 ,  Y02A90/26

Abstract: A smart phone or tablet includes a first part having at least one laser diode configured to be pulsed, and a second part having at least one other laser diode, the laser diodes configured to generate near-infrared light, wherein at least some of the laser diodes comprise a distributed Bragg reflector, with some laser diode light directed to tissue including skin. An array of laser diodes generates near-infrared light and includes one or more distributed Bragg reflectors. An assembly in front of the array to forms light spots on the tissue. A first receiver includes detectors that receive light reflected from the tissue. An infrared camera generates data from light reflected from the tissue. The smart phone or tablet generates a two-dimensional or three-dimensional image or mapping using the infrared camera data, and includes a wireless receiver, a wireless transmitter, a display, a voice input module, and a speaker.

公开(公告)号：US20190128799A1

公开(公告)日：2019-05-02

申请号：US15800582

申请日：2017-11-01

Applicant: ABB Schweiz AG

Inventor： J. Brian Leen ,  Axel Kramer ,  Xu Du

IPC: G01N21/3504 ,  G01N21/359 ,  G01N21/39

CPC classification number: G01N21/3504 ,  G01J3/10 ,  G01J3/42 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/399

Abstract: Systems and methods for measuring a value of constituents in a mixed constituent gas having at least one broad band absorber constituent therein and at least one lock constituent are provided. The system uses a combination of integrated cavity output spectroscopy and cavity ringdown spectroscopy to determine the measurement values of constituents in a cavity of a spectrometer. Cavity ringdown in the presence of the at least one broadband absorber constituent and a reference concentration value are used to determine the constituent measurement values when the spectral width of the laser tuning range is overlapped by the absorption band of the broad band absorber in the cavity.

公开(公告)号：US20180317776A1

公开(公告)日：2018-11-08

申请号：US16029611

申请日：2018-07-08

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/42 ,  A61B5/145 ,  A61B5/1455 ,  G01N21/359 ,  G01N21/39 ,  G01N33/49 ,  G01N21/88 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01N21/3563 ,  G01N21/35 ,  G01N33/44 ,  G01N33/15 ,  G01N33/02 ,  G01J3/453 ,  G01J3/18 ,  G01J3/12 ,  G01M3/38 ,  G01N21/85 ,  G01N21/95 ,  H01S3/00 ,  H01S3/30 ,  H01S3/067

CPC classification number: A61B5/0088 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4547 ,  A61B5/6801 ,  A61B5/7257 ,  A61B5/7405 ,  A61B5/742 ,  A61B2562/0233 ,  A61B2562/0238 ,  A61B2562/146 ,  A61B2576/02 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/14 ,  G01J3/1838 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/453 ,  G01J2003/104 ,  G01J2003/1208 ,  G01J2003/2826 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/9508 ,  G01N33/02 ,  G01N33/025 ,  G01N33/15 ,  G01N33/442 ,  G01N33/49 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N2201/061 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/08 ,  G01N2201/12 ,  G01N2201/129 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302

Abstract: A smart phone or tablet includes pulsed laser diodes generating light with near-infrared wavelengths between 700-2500 nanometers. First lenses direct light from the laser diodes to tissue. An array of pulsed laser diodes generates light with near-infrared wavelengths between 700-2500 nanometers. Second lenses form light from the array into spots directed on the tissue. An infrared camera synchronized to the laser diodes and the array generates data based on light reflected from the tissue. The smart phone or tablet generates a two-dimensional or three-dimensional image using the data from the infrared camera. The smart phone or tablet includes a wireless receiver, a wireless transmitter, a display, a voice input module, and a speaker.

公开(公告)号：US20180222581A1

公开(公告)日：2018-08-09

申请号：US15749982

申请日：2016-07-26

Applicant: Konica Minolta, Inc.

Inventor： Hikaru NAGASAWA ,  Kyuichiro IMADE ,  Masashi KAGEYAMA ,  Ryouta ISHIKAWA

IPC: B64C39/02 ,  B64D47/00 ,  G01M3/38 ,  G01N21/39 ,  G01S17/42 ,  G01S17/89

CPC classification number: B64C39/02 ,  B64D47/00 ,  G01B11/00 ,  G01M3/38 ,  G01N21/3504 ,  G01N21/39 ,  G01N2021/399 ,  G01N2201/0214 ,  G01S17/42 ,  G01S17/89

Abstract: The unmanned flying body is provided with a gas detector, a distance meter, and an altitude controller. The gas detector emits diagonally downward to the forward side in a moving direction of the unmanned flying body a detecting light frequency-modulated by a predetermined modulation frequency setting a predetermined frequency as a central frequency. The gas detector receives the light, returned from a measurement target to which the detecting light is emitted (an area on a pipe member for transferring gas, irradiated with the detecting light), as first light. The measurement target is checked for gas leakage based on the received first light. The distance meter measures the distance between the gas detector and the measurement target. The altitude controller controls the flight altitude of the unmanned flying body based on the measured distance.

公开(公告)号：US20180209902A1

公开(公告)日：2018-07-26

申请号：US15506218

申请日：2015-08-24

Applicant: ISIS GEOMATICS INC.

Inventor： Stephen Myshak ,  Owen Brown

IPC: G01N21/39 ,  G01J3/42 ,  G01J3/02

CPC classification number: G01N21/39 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/42 ,  G01J2003/423 ,  G01M3/202 ,  G01N21/3504 ,  G01N2021/1795 ,  G01N2021/3513 ,  G01N2021/399 ,  G01N2201/0214 ,  G01N2201/0612

Abstract: A gas detection apparatus mountable to an unmanned aerial vehicle (UAV) comprises a transceiver module, a reflector module and an electronics module. The transceiver module comprises a laser emitter and a laser receiver; the laser emitter is tunable to emit a laser spectroscopy beam that can detect at least one target gas, and the laser receiver is configured to convert the laser spectroscopy beam into absorption spectroscopy measurement data. The reflector module comprises a reflective surface capable of reflecting the laser spectroscopy beam emitted by the laser emitter to the laser receiver. The transceiver and reflector modules are mountable on parts of the UAV such that the transceiver and reflector modules are spaced apart and the laser emitter and laser receiver have an unimpeded line of sight with the reflecting surface. The electronics module is communicative with the transceiver module and with a flight computer of the UAV, and comprises a gas detection program that determines a concentration of the target gas from the measurement data received from the transceiver module; when the determined concentration of the target gas meets or exceeds an alarm threshold, the program records the received measurement data and instructs the flight computer to execute a defined flight plan for the UAV.

公开(公告)号：US20180172581A1

公开(公告)日：2018-06-21

申请号：US15827542

申请日：2017-11-30

Applicant: HORIBA, Ltd.

Inventor： Kyoji SHIBUYA ,  Kensuke FUKUSHIRO ,  Toshio OHTA ,  Katsumi NISHIMURA

IPC: G01N21/39 ,  G01J3/433 ,  G01N21/3504

CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J3/4338 ,  G01J2003/104 ,  G01N21/3504 ,  G01N2021/399

Abstract: The present invention is adapted to include: a light source adapted to emit reference light that is light whose wavelength is modulated at a predetermined modulation frequency; a light detector adapted to detect the intensity of measurement target light that is light after the reference light has transmitted through the measurement target component, and the intensity of the reference light; a first calculation part adapted to calculate an intensity ratio logarithm that is the logarithm of the ratio between the intensity of the measurement target light and the intensity of the reference light; a frequency component extraction part adapted to lock-in detect the intensity ratio logarithm with a reference signal having a frequency n times the modulation frequency; and a second calculation part adapted to, on the basis of the result of the detection by the frequency component extraction part, calculate the concentration or absorbance of the measurement target component.