公开(公告)号：US20180299373A1

公开(公告)日：2018-10-18

申请号：US15946887

申请日：2018-04-06

Applicant: GREENTROPISM

Inventor： Antoine LABORDE ,  Aude BOURDEAU ,  Anthony BOULANGER

IPC: G01N21/31

CPC classification number: G01N21/314 ,  G01J3/0264 ,  G01J3/28 ,  G01J3/42 ,  G01J2003/2833 ,  G01J2003/2843 ,  G01J2003/2866 ,  G01J2003/2869 ,  G01J2003/2873 ,  G01N21/274 ,  G01N21/31 ,  G01N33/10 ,  G01N2201/121 ,  G01N2201/129 ,  G01N2201/1293

Abstract: The invention relates to a characterization device (50) for characterizing a sample (S) comprising: a memory (MEM) storing a measured spectrum (As+p) of said sample, performed through a translucent material, and a measured spectrum of the translucent material (Ap), a processing unit (PU) configured to: determine a spectral energy (Es+p) of the measured spectrum (As+p) of the sample through the translucent material (As+p), estimate a coefficient ({circumflex over (γ)}) from said spectral energy (Es+p) and, determine a corrected spectrum (Âs) of the sample from the measured spectrum (As+p) of the sample through the translucent material and from a corrected spectrum of the translucent material (Âp), said corrected spectrum of the translucent material (Âp) being determined from the measured spectrum of the translucent material (Ap) and from the estimated coefficient ({circumflex over (γ)}).

公开(公告)号：US20180259455A1

公开(公告)日：2018-09-13

申请号：US15487438

申请日：2017-04-14

Applicant: Massachusetts Institute of Technology

Inventor： Ayush Bhandari ,  Christopher Barsi ,  Achuta Kadambi ,  Ramesh Raskar

IPC: G01N21/64

CPC classification number: G01N21/6408 ,  G01N21/6456 ,  G01N2201/0691 ,  G01N2201/126 ,  G01N2201/129 ,  G07D7/00

Abstract: A light source may illuminate a scene with pulsed light that is pulsed non-periodically. The scene may include fluorescent material that fluoresces in response to the pulsed light. The pulsed light signal may comprise a maximum length sequence or Gold sequence. A lock-in time-of-flight sensor may take measurements of light returning from the scene. A computer may, for each pixel in the sensor, perform a Discrete Fourier Transform on measurements taken by the pixel, in order to calculate a vector of complex numbers for the pixel. Each complex number in the vector may encode phase and amplitude of incident light at the pixel and may correspond to measurements taken at a given time interval during the pulsed light signal. A computer may, based on phase of the complex numbers for a pixel, calculate fluorescence lifetime and scene depth of a scene point that corresponds to the pixel.

公开(公告)号：US20180259446A1

公开(公告)日：2018-09-13

申请号：US15317847

申请日：2015-06-12

Applicant: Murphy Brown, LLC

Inventor： Max Terry COFFEY ,  Cristina Ellen PHILLIPS ,  Jeffery Alan HANSEN

IPC: G01N21/3563 ,  G01N15/02 ,  G01N21/359 ,  G01N21/3554 ,  G01N21/85

CPC classification number: G01N21/3563 ,  G01N15/00 ,  G01N15/0205 ,  G01N21/3554 ,  G01N21/359 ,  G01N21/85 ,  G01N2015/0277 ,  G01N2015/1087 ,  G01N2021/8592 ,  G01N2201/129

Abstract: The present invention is drawn to methods and systems for using in-line near infrared spectroscopy to determine the physical parameters of a comminuted product.

公开(公告)号：US09983136B2

公开(公告)日：2018-05-29

申请号：US14374933

申请日：2013-09-02

Applicant: INDIAN INSTITUTE OF SCIENCE

Inventor： Siva Umapathy ,  Sanchita Sil ,  John Kiran

IPC: G01N21/65 ,  G01J3/44

CPC classification number: G01N21/65 ,  G01J3/4412 ,  G01N2201/06113 ,  G01N2201/068 ,  G01N2201/129

Abstract: The invention provides a method for obtaining sample specific signatures. The method comprises of irradiating the sample at a predefined location with an electromagnetic radiation of specific wavelength; selectively capturing a certain component of the scattered electromagnetic radiation to obtain a plurality of profiles; and filtering the profiles to obtain a sample specific signature. The invention provides an apparatus for obtaining sample specific signatures.

公开(公告)号：US20180140198A1

公开(公告)日：2018-05-24

申请号：US15860065

申请日：2018-01-02

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

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

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

Abstract: A wearable device includes a measurement device having light emitting diodes (LEDs) measuring a physiological parameter. The measurement device modulates the LEDs to generate an optical beam having a near-infrared wavelength between 700-2500 nanometers. Lenses receive and deliver the optical beam to tissue, which reflects the optical beam to a receiver having spatially separated detectors coupled to analog-to-digital converters configured to generate receiver outputs. The receiver captures light while the LEDs are off, and reflected light from the tissue while the LEDs are on, to generate first and second signals, respectively. Signal-to-noise ratio is improved by differencing the first and second signals and by differencing the receiver outputs. The measurement device further improves signal-to-noise ratio of the reflected optical beam by increasing light intensity of the LEDs relative to an initial light intensity. The measurement device generates an output signal representing a non-invasive measurement on blood contained within the tissue.

公开(公告)号：US20180095031A1

公开(公告)日：2018-04-05

申请号：US15283965

申请日：2016-10-03

Applicant: ABB Schweiz AG

Inventor： Kyle Owen ,  Manish X. Gupta

IPC: G01N21/39 ,  G01N21/359 ,  G01N21/3504 ,  G01N33/22

CPC classification number: G01N21/39 ,  F23N2021/10 ,  G01J3/42 ,  G01N21/031 ,  G01N21/05 ,  G01N21/3504 ,  G01N21/359 ,  G01N33/225 ,  G01N2021/399 ,  G01N2201/129

Abstract: A tunable diode laser absorption spectrometer and a method of processing absorption spectra is used to measure concentrations of selected fuel gas components and calculate several fuel gas parameters, including heating value, relative density, compressibility, theoretical hydrocarbon liquid content and Wobbe index. In the described incarnation, a tunable laser diode directs near-infrared light into an optical cavity through a sample of fuel gas. A sensor measures intensity of light exiting the cavity as the laser wavelength is tuned over a specified range to construct a cavity-enhanced absorption spectrum for the fuel gas. A set of basis spectra for expected component species is used to analyze the spectrum and determine component concentrations, including methane, ethane, carbon dioxide, and other discrete and structured absorbers. Critically, a generic broadband absorption is used to model higher hydrocarbons that present themselves as nearly featureless absorption spectra. The fuel gas parameters are then calculated directly from determined component concentrations and the broadband absorption representing the higher hydrocarbons.

公开(公告)号：US20180059015A1

公开(公告)日：2018-03-01

申请号：US15690856

申请日：2017-08-30

Applicant: Sensii, Inc.

Inventor： Qiaochu Li ,  Wenting Xing

IPC: G01N21/3577 ,  G01N21/359 ,  G01N33/14 ,  G01N33/04 ,  G01N33/03

CPC classification number: G01N21/3577 ,  G01N21/359 ,  G01N33/03 ,  G01N33/04 ,  G01N33/146 ,  G01N2201/0221 ,  G01N2201/121 ,  G01N2201/129

Abstract: A personal liquid analysis system includes a portable liquid analyzer device, a mobile application as a user interface, and a cloud server for data analysis. The compact and portable liquid analyzer device is integrated by miniaturized near-infrared (NIR) optical sensors setup for spectroscopy measurement from a sample cell, control circuits, I/O user interface modules and wireless communication modules. The analyzer can be used to collect NIR spectra data from a liquid sample in the sample cell, and to transmit the data to a cloud server where compositional information is calculated, and presented to the user on the device and/or on a mobile application. The personal liquid analysis system enables the user to rapidly acquire qualitative and/or quantitative compositional information from liquid samples for a wide range of applications.

公开(公告)号：US09885698B2

公开(公告)日：2018-02-06

申请号：US15212549

申请日：2016-07-18

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. Islam

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

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

Abstract: A wearable device for use with a smart phone or tablet includes a measurement device having a light source with a plurality of light emitting diodes (LEDs) for measuring physiological parameters and configured to generate an optical beam with wavelengths including a near-infrared wavelength between 700 and 2500 nanometers. The measurement device includes lenses configured to deliver the optical beam to a sample of skin or tissue, which reflects the optical beam to a receiver located a first distance from one of the LEDs and a different distance from another of the LEDs, and is also configured to generate an output signal representing a non-invasive measurement on blood contained within the sample. The wearable device is configured to communicate with the smart phone or tablet, which receives, processes, stores and displays the output signal with the processed output signal configured to be transmitted over a wireless transmission link.

公开(公告)号：US20180031477A1

公开(公告)日：2018-02-01

申请号：US15221978

申请日：2016-07-28

Applicant: Eastman Kodak Company

Inventor： Allan Wexler ,  Steven C. Switalski ,  Grace Ann Bennett ,  Kimberly S. Lindner

IPC: G01N21/64 ,  G01N27/416

CPC classification number: G01N21/6428 ,  G01N21/643 ,  G01N21/6456 ,  G01N21/8851 ,  G01N27/4166 ,  G01N2021/6421 ,  G01N2021/6439 ,  G01N2201/129 ,  Y10T436/145555

Abstract: A characteristic difference between first and second liquids is measured using a surface having a monolayer of a voltage sensitive chromophore that is covalently bound to the surface. The first liquid is brought into contact with the surface and it is irradiated with actinic radiation to measure a first fluorescence emission spectrum. The second liquid is also brought into contact with the surface and it is irradiated with actinic radiation to measure a second fluorescence emission spectrum. The first and second fluorescence emission spectra are compared to characterize a difference between the first and second fluids.

公开(公告)号：US20180024051A1

公开(公告)日：2018-01-25

申请号：US15658470

申请日：2017-07-25

Applicant: MKS Instruments, Inc.

Inventor： Peter Zemek ,  Robert M. Carangelo ,  Hongke Ye ,  Andrew Wright

IPC: G01N21/39 ,  G01N21/01 ,  G01N33/00 ,  G01N21/25

CPC classification number: G01N21/39 ,  G01N21/01 ,  G01N21/255 ,  G01N21/3504 ,  G01N33/0044 ,  G01N2021/0193 ,  G01N2021/399 ,  G01N2201/0612 ,  G01N2201/129

Abstract: Presented herein are systems and methods for quantifying trace and/or ultra-trace levels of a species—for example, H2S or H2O—in a natural gas line. The systems and methods employ a tunable laser, such as a tunable diode laser, vertical-cavity surface-emitting laser (VCSEL), external cavity diode laser or a vertical external-cavity surface-emitting laser (VECSEL) or a tunable quantum cascade laser (QCL). The laser produces an output beam over a set of one or more relatively narrow, high resolution wavelength bands at a scan rate from about 0.1 Hz to about 1000 Hz. A natural gas sample comprising a trace level of a species of interest passes through a flow cell into which the output beam from the laser is guided. An optical detector receives light from the flow cell, producing a signal indicative of the absorption attenuation from which the concentration of the trace species is determined.