公开(公告)号：US20190017873A1

公开(公告)日：2019-01-17

申请号：US16051904

申请日：2018-08-01

Applicant: MLS ACQ, Inc D/B/A Max Analytical Technology

Inventor： Martin L. Spartz ,  Anthony S. Bonanno ,  Peter P. Behnke

IPC: G01J3/42 ,  G01N30/74 ,  G01N21/3504 ,  G01N21/03 ,  G01N30/86 ,  G01N21/3581 ,  G01N21/33 ,  G01N21/65 ,  G01N21/64 ,  G01N21/35 ,  G01N30/00 ,  G01N30/02 ,  G01N21/359

CPC classification number: G01J3/42 ,  G01N21/031 ,  G01N21/33 ,  G01N21/3504 ,  G01N21/3581 ,  G01N21/359 ,  G01N21/64 ,  G01N21/65 ,  G01N30/74 ,  G01N30/8606 ,  G01N30/8641 ,  G01N2021/3595 ,  G01N2030/008 ,  G01N2030/025 ,  G01N2030/743

Abstract: Components resolved in time by a separator accumulate in a sample cell and are analyzed by electromagnetic radiation-based spectroscopic techniques. The sample cell can be configured for multiple path absorption and can be heated. The separator can be a gas chromatograph or another suitable device, for example a distillation-based separator. The method and system described herein can include other mechanical elements, controls, procedures for handling background and sample data, protocols for species identification and/or quantification, automation, computer interfaces, algorithms, software or other features.

公开(公告)号：US20190017872A1

公开(公告)日：2019-01-17

申请号：US15650746

申请日：2017-07-14

Applicant: Phoseon Technology, Inc.

Inventor： Lowell Brunson ,  John Christopher Freitag ,  Theresa Thompson

IPC: G01J3/42 ,  G01J3/28 ,  G01J3/10 ,  G02B27/10 ,  G02B27/14 ,  G02B5/28

Abstract: Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.

公开(公告)号：US10180352B2

公开(公告)日：2019-01-15

申请号：US15694318

申请日：2017-09-01

Applicant: Carl Zeiss Spectroscopy GmbH

Inventor： Joerg Margraf ,  Thomas Keune

IPC: G01J3/10 ,  G01J3/42 ,  G01N21/47 ,  G01N21/55 ,  F21V7/04 ,  G01J3/02 ,  G01J3/08 ,  G01J3/28 ,  G01N21/25 ,  G01N21/57 ,  G01N21/84

Abstract: A measuring light source includes a hollow body having a diffusely reflective inner surface. Formed in the hollow body are a concave, concave mirror-shaped illumination space, a tubular light shaping space, and a concave, concave mirror-shaped light exit space, which have a shared axis. A light source for generating light is at least partially situated in the illumination space. The light exit space has a light exit. The illumination space and the light exit space with their concave mirror shapes are situated opposite one another and are connected by the tubular light shaping space. A diffusely reflecting reflective disk for reflecting the light, reflected from the inner surface of the hollow body situated in the light exit space, through the light exit to outside the hollow body is situated in the hollow body.

公开(公告)号：US10162091B1

公开(公告)日：2018-12-25

申请号：US14885843

申请日：2015-10-16

Applicant: Junpeng Guo ,  Seyed Sadreddin Mirshafieyan

Inventor： Junpeng Guo ,  Seyed Sadreddin Mirshafieyan

IPC: G02B5/28 ,  G01J3/42

Abstract: An optical filter has a layer of silicon film deposited onto a metallic substrate surface at a silicon film thickness corresponding to a wavelength of light to be filtered from incoming light. The critical coupling of light to the optical cavity formed by the silicon film on metal surface results in a strong and near perfect absorption of the light at a resonance wavelength and strong absorption in the wavelength region near the peak absorption wavelength. Other wavelengths of the incoming wave are reflected by the device so the spectral content of light is changed. By controlling the thickness of the silicon film and/or other factors, such as the extent to which the silicon film is annealed or the type of metal beneath the silicon film, the wavelength of the light absorbed by the silicon film can be precisely controlled.

公开(公告)号：US10156513B2

公开(公告)日：2018-12-18

申请号：US14807859

申请日：2015-07-23

Applicant: SpectraSensors, Inc.

Inventor： Peter Scott ,  Alfred Feitisch ,  Peter Dorn ,  Adam S. Chaimowitz ,  Hsu-Hung Huang ,  Mathias Schrempel ,  Lutz Keller

IPC: G01N21/31 ,  G01N21/03 ,  G01J3/42 ,  G01N21/27 ,  G01N21/01 ,  G01N21/05

Abstract: A sample cell can be designed to minimize excess gas volume. Described features can be advantageous in reducing an amount of gas required to flow through the sample cell during spectroscopic measurements, and in reducing a time (e.g. a total volume of gas) required to flush the cell between sampling events. In some examples, contours of the inners surfaces of the sample cell that contact the contained gas can be shaped, dimensioned, etc. such that a maximum clearance distance is provided between the inner surfaces at one or more locations. Systems, methods, and articles, etc. are described.

公开(公告)号：US10119906B2

公开(公告)日：2018-11-06

申请号：US15192120

申请日：2016-06-24

Applicant: SICK AG

Inventor： Thomas Beyer ,  Julian Edler

IPC: G01N21/39 ,  G01J3/42 ,  G01J3/433 ,  G01N33/00 ,  G01N21/03

Abstract: The invention relates to a method of determining the concentration of a gas component comprising the steps: generating and guiding a light beam having a wavelength variable in a wavelength range through a measurement volume in which the gas component having an absorption in the wavelength range is present; tuning the wavelength range; detecting the intensity of the light beam after passage through the measurement volume; storage of measurement points during the tuning that respectively consist of a point in time and an associated intensity value, to obtain a direct absorption line; generating an artificial measurement curve from the stored measurement points by shifting the measurement points on the time axis; wherein the shift takes place so that an artificial modulation results in the wavelength time extent; and evaluating the artificial measurement curve in accordance with the method of the wavelength modulation spectroscopy and determining a first concentration value therefrom.

公开(公告)号：US20180313690A1

公开(公告)日：2018-11-01

申请号：US15937177

申请日：2018-03-27

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. HRUSKA

IPC: G01J3/02 ,  G01J3/42 ,  G01J3/10

CPC classification number: G01J3/0297 ,  G01J3/0205 ,  G01J3/027 ,  G01J3/10 ,  G01J3/42 ,  G01N21/274 ,  G01N2201/12707 ,  G01N2201/12715 ,  G01N2201/12723 ,  G01N2201/1273 ,  G01N2201/12738

Abstract: A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.

公开(公告)号：US20180306710A1

公开(公告)日：2018-10-25

申请号：US15569549

申请日：2016-04-28

Applicant: Imperial Innovations Lilmited

Inventor： Christopher Clement Phillips ,  Hemmel Amrania

IPC: G01N21/3563 ,  G01N21/31 ,  G01J3/42 ,  A61B5/00

CPC classification number: G01N21/3563 ,  A61B5/0075 ,  G01J3/42 ,  G01N21/314 ,  G01N21/35

Abstract: A method of mapping a tissue characteristic in a tissue sample comprises gathering infrared absorption data from the sample at selected wavelengths, and determining, from the infrared absorption data, a first measure of the amount of power or energy absorbed attributable to an amide moiety and a second measure of the amount of power or energy absorbed attributable to a phosphate moiety. A ratio of the first measure and the second measure is used to establish a histological index. The histological index may be used to indicate a malignancy grade of tumour in the tissue.

公开(公告)号：US10107684B1

公开(公告)日：2018-10-23

申请号：US15824407

申请日：2017-11-28

Applicant: Wavefront Research, Inc.

Inventor： Thomas A. Mitchell

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/14 ,  G01J3/04 ,  G01J3/02 ,  G01J3/42

Abstract: Systems and methods for increasing the overall throughput, decreasing the overall background radiation, or a combination thereof for imaging systems.

公开(公告)号：US20180296097A1

公开(公告)日：2018-10-18

申请号：US16015737

申请日：2018-06-22

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/28 ,  A61B5/145 ,  A61B5/1455 ,  G01N21/39 ,  G06F19/00 ,  G01N21/88 ,  G16H40/67 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01N33/02 ,  G01N21/359 ,  G01N21/3563 ,  G01N21/35 ,  G01N33/49 ,  G01N33/44 ,  G01N33/15 ,  G01J3/453 ,  G01J3/42 ,  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 ,  G06F19/00 ,  G16H40/67 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302 ,  Y02A90/26

Abstract: A measurement system includes a light source having semiconductor sources, a multiplexer, and one or more fused silica fibers configured to form an output optical beam having one or more optical wavelengths modulated at a modulation frequency. A light beam set-up includes a monochromator forming a filtered optical beam. A measurement apparatus delivers the filtered optical beam to a sample. A receiver receives a spectroscopy output beam generated from the sample by the filtered optical beam. The receiver is configured to use a lock-in technique that detects the modulation frequency, and to generate first and second signals responsive to light received while the light source is off and on, respectively. The measurement system improves a signal-to-noise ratio of the spectroscopy output beam by differencing the first and second signals. The receiver processes the spectroscopy output beam using chemometrics or multivariate analysis to permit identification of materials within the sample.