公开(公告)号：US10324029B2

公开(公告)日：2019-06-18

申请号：US15748261

申请日：2016-08-09

Applicant: TOKUSHIMA UNIVERSITY ,  FUJIKIN INCORPORATED

Inventor： Yoshihiro Deguchi ,  Masaaki Nagase ,  Michio Yamaji ,  Nobukazu Ikeda ,  Kouji Nishino ,  Masayoshi Kawashima ,  Kazuteru Tanaka

IPC: G01N21/31 ,  G01N21/33 ,  G01J3/42 ,  G01N21/59 ,  G01N21/27 ,  G01J3/10 ,  G01J3/28 ,  G01J3/433 ,  G01J3/02 ,  G01N21/3504 ,  G01J1/42

Abstract: A concentration measurement device including at least one light source; a measurement cell for containing a fluid to be measured; a splitter for dividing light from the light source into incident light being incident into the measurement cell and non-incident light not being incident into the measurement cell; a transmitted-light detector for detecting transmitted light that is the incident light having passed through the measurement cell; a non-incident light detector for detecting the non-incident light; and an arithmetic part for correcting a detection signal of the transmitted-light detector using a detection signal of the non-incident light detector.

公开(公告)号：US10302573B2

公开(公告)日：2019-05-28

申请号：US15422013

申请日：2017-02-01

Applicant: The Boeing Company

Inventor： Paul G. Vahey

IPC: G01N21/01 ,  G01N21/94 ,  G01J3/10 ,  G01J1/42 ,  G01J3/42 ,  G01J3/02 ,  G01N21/35

Abstract: One example of the present disclosure relates to an apparatus for spectroscopic analysis of residue. The apparatus includes a surface including a hydrophobic portion and a hydrophilic portion. The hydrophobic portion surrounds the hydrophilic portion. The hydrophilic portion includes a dimension equal to or larger than a width of a first incident non-destructive electromagnetic beam.

公开(公告)号：US10274424B2

公开(公告)日：2019-04-30

申请号：US15959179

申请日：2018-04-21

Applicant: Space Engineering University

Inventor： Wei Rao ,  Guangyu Wang ,  Yanji Hong ,  Junling Song

IPC: G01N21/00 ,  G01N21/39 ,  G01J3/42 ,  G01N21/3504

Abstract: The present invention provides a Voigt line shape fitting method, including step 1: Calculate a Gauss line shape function and a Lorentz line shape function, and calculate a Voigt line shape function. Step 2: For determined line shape parameters to be fitted, calculate partial derivatives of the Voigt line shape function with respect to the parameters, convert a partial derivative of the Voigt line shape function with respect to a parameter into a partial derivative of the Gauss line shape function or the Lorentz line shape function with respect to the parameter. Step 3: Substitute the Voigt line shape function and the partial derivative of the Voigt line shape function with respect to the parameter to be fitted, into a least squares algorithm step, perform least squares fitting calculation, and determine whether to terminate the least squares fitting calculation or return to step 1 to perform next iterative calculation.

公开(公告)号：US20190118331A1

公开(公告)日：2019-04-25

申请号：US16162063

申请日：2018-10-16

Applicant: EBARA CORPORATION

Inventor： Nobuyuki TAKAHASHI ,  Toshifumi KIMBA ,  Masaki KINOSHITA

IPC: B24B37/013 ,  B24B37/10 ,  B24B49/12 ,  G01J3/42 ,  G01J3/10

Abstract: There is disclosed a polishing apparatus which allows for easy replacement of a light source with another type of light source. The light-source assembly includes: a base fixed to a polishing table and coupled to a light-emitting transmission line; and a light-source module having a lamp for emitting light. The light-source module is removably attached to the base. The base is a common base which is adapted to any of a plurality of light-source modules of different types including the light-source module. The base includes a positioning structure which achieves positioning of the light-source module relative to the base.

公开(公告)号：US10268889B2

公开(公告)日：2019-04-23

申请号：US15476562

申请日：2017-03-31

Applicant: THE BOEING COMPANY

Inventor： Timothy E. Brown ,  Robert J. Klein

IPC: G06K9/00 ,  G01J3/28 ,  G01J3/42 ,  G06K9/34 ,  G06K9/46 ,  G06K9/62

Abstract: A method of identifying a target material in a spectral image includes acquiring a spectral image of a scene. The method also includes performing image segmentation to partition the spectral image into a plurality of segments. The method includes accessing a database of spectral models of a plurality of materials to determine a material whose spectral model is most similar to the spectral data for the segment, a difference between the spectral model of the material and the spectral data for the segment including measurable reflectance or radiance at characteristic frequencies or wavelengths. The method also includes analyzing a database of spectral data for a plurality of target materials to identify a target material whose spectral data also has measurable reflectance or radiance at the characteristic frequencies or wavelengths. And the method includes outputting an identifier of the target material for display with the spectral image.

公开(公告)号：US10254165B2

公开(公告)日：2019-04-09

申请号：US15523110

申请日：2014-11-14

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hyeon Min Bae ,  Jong Kwan Choi ,  Min Gyu Choi ,  Jae Myoung Kim ,  Gun Pil Hwang

IPC: G01J3/00 ,  G01J3/28 ,  G01N21/35 ,  A61B5/1455 ,  G01J3/42 ,  A61B5/00

Abstract: Disclosed are a time division spread spectrum code-based optical spectroscopy system capable of controlling irradiation power and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a light transmission unit for irradiating light to a particular region of a subject by means of a light source, wherein the light is irradiated so that the overall energy is consistently maintained by reducing the light irradiation time and increasing the strength of the light; and a light receiving unit for collecting emergent light which has passed through the particular region.

公开(公告)号：US10241037B2

公开(公告)日：2019-03-26

申请号：US15520051

申请日：2015-10-20

Applicant: COLORADO STATE UNIVERSITY RESEARCH FOUNDATION

Inventor： Azer P. Yalin

IPC: G01N21/3504 ,  G01J3/42 ,  G01N21/39 ,  G01J3/28

Abstract: Systems and methods are disclosed to determine the concentration of a species within a sample. An example method may include collecting optical loss data over a range of frequencies from the sample using a spectroscopy system; placing the optical loss data into a plurality of bins, each bin having a defined frequency width; determining an average optical loss data value for the optical loss values within each bin that have an optical loss value less than a threshold value; removing the optical loss data within each bin having a value outside a tolerance range bounding the average optical loss data value for the respective bin; fitting a spectral curve to the remaining optical loss data; and determining the concentration of the species within the sample based on the spectral curve.

公开(公告)号：US10215632B2

公开(公告)日：2019-02-26

申请号：US15703981

申请日：2017-09-13

Applicant: Zycor Labs Inc.

Inventor： Yasser Fawzy

IPC: G01J3/46 ,  G01J3/02 ,  G01J3/42 ,  G01J3/50 ,  G01J3/10 ,  G01J3/28 ,  A61B5/00

Abstract: A method and spectral light-based apparatus with an embedded (built-in) spectral calibration module for acquiring multi-spectral reflectance images from a digital camera are disclosed. The apparatus may be an attachment device, which may be integrated with a consumer digital camera (such as smartphone camera), and may measure and/or estimate spectral reflectance and true color values for an object recorded by the camera. An example apparatus comprises an array of monochromatic light sources, preferably pulsed LEDs, irradiating in a time-multiplexed manner to generate light spectra in the range of 400 nm-1000 nm, an optical lens to limit the field of view of the attached camera, an electro-mechanical shutter or plate with its inner (reflection) surface coated with a diffuse reflectance standard to ensure flat spectral response, and an interface module for synchronizing the time-multiplexed light spectra with the coated shutter opening and closing and with the digital frames acquired by the camera, such that the true spectral reflectance and true color value of an object can be measured.

公开(公告)号：US20190033135A1

公开(公告)日：2019-01-31

申请号：US16056214

申请日：2018-08-06

Applicant: Mayo Foundation for Medical Education and Research

Inventor： Clifton R. Haider ,  James A. Rose ,  Gary S. Delp ,  Barry K. Gilbert

IPC: G01J3/42 ,  A61B5/00 ,  G01N21/49 ,  G01N33/49 ,  A61B5/1455 ,  G01J3/02 ,  A61B5/145

Abstract: A system and method of dynamically localizing a measurement of parameter characterizing tissue sample with waves produced by spectrometric system at multiple wavelengths and detected at a fixed location of the detector of the system. The parameter is calculated based on impulse response of the sample, reference data representing characteristics of material components of the sample, and path lengths through the sample corresponding to different wavelengths. Dynamic localization is effectuated by considering different portions of a curve representing the determined parameter, and provides for the formation of a spatial map of distribution of the parameter across the sample. Additional measurement of impulse response at multiple detectors facilitates determination of change of the measured parameter across the sample as a function of time.

公开(公告)号：US10190974B2

公开(公告)日：2019-01-29

申请号：US15525338

申请日：2015-11-02

Applicant: Dräger Safety AG & Co. KGaA

Inventor： Andre Pape ,  Arne Tröllsch

IPC: G01N21/3504 ,  G01J3/42 ,  G01N21/31 ,  G01N21/17

Abstract: An optical gas sensor (1), for quantitatively measuring a concentration of one or more gases, includes a radiation source (2) for emitting light waves (L), a cuvette (3) for holding a gas (G) to be measured, and a detector (4) for measuring light intensities. The light source (2) includes at least one emitter (5) of light waves (L) and is configured to emit light waves (L) of at least one first wavelength and of a second wavelength different from the first wavelength simultaneously or separately from each other. The emitter (5) is further configured to emit a spectrum the full half-life width of which is a maximum 50% of the effective wavelength, and to emit light waves (L) having a controlled beam path. The detector (4) is configured to quantitatively detect an intensity of emitted light waves (L) of the first wavelength and of the second wavelength.