公开(公告)号：US11668608B2

公开(公告)日：2023-06-06

申请号：US17063816

申请日：2020-10-06

Applicant: Tokyo Electron Limited

Inventor： Tong Wu ,  Kenji Nagai

IPC: G01J3/427 ,  G01K11/125 ,  G01N21/41 ,  G01K7/02 ,  G01N21/71

CPC classification number: G01K7/02 ,  G01J3/427 ,  G01K11/125 ,  G01N21/41 ,  G01N21/71 ,  G01N2201/1211

Abstract: A temperature measurement system configured to measure a temperature of a target object having a first main surface and a second main surface includes a light source unit configured to emit output light penetrating the target object and including a first wavelength range and a second wavelength range; a measurement unit configured to measure a spectrum of reflected light; an optical path length ratio calculator configured to calculate an optical path length ratio between the output light of the first wavelength range and the output light of the second wavelength range; and a temperature calculator configured to calculate the temperature of the target object based on the optical path length ratio and a previously investigated relationship between the temperature of the target object and a refractive index ratio between the output light of the first wavelength range and the output light of the second wavelength range.

公开(公告)号：US20230168192A1

公开(公告)日：2023-06-01

申请号：US18059450

申请日：2022-11-29

Applicant: Asahi Kasei Microdevices Corporation

Inventor： Kakeru ICHIMURA ,  Takenobu NAKAMURA

IPC: G01N21/3504 ,  G01N33/00

CPC classification number: G01N21/3504 ,  G01N33/0027 ,  G01N2201/1211

Abstract: Provided is a concentration measurement apparatus for measuring a concentration of a measurement object using an infrared ray, the concentration measurement apparatus including a signal acquisition unit configured to acquire a detection signal, a temperature information acquisition unit configured to acquire temperature information, a correction unit configured to output a correction signal obtained by correcting a temperature dependency of the detection signal based on the temperature information, and a calculation unit configured to calculate the concentration of the measurement object according to the correction signal using calibration curve data at a predetermined reference temperature for calculating the concentration of the measurement object, in which the correction unit is configured to output the correction signal obtained by performing linear correction of the detection signal using, among predetermined correction parameters different for three or more respective temperature segments, the correction parameter in a temperature segment corresponding to the temperature information.

公开(公告)号：US20180217054A1

公开(公告)日：2018-08-02

申请号：US15748264

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 ,  G01N21/59 ,  G01J3/42 ,  G01J3/10

CPC classification number: G01N21/3103 ,  G01J3/10 ,  G01J3/42 ,  G01N21/33 ,  G01N21/3504 ,  G01N21/59 ,  G01N2021/157 ,  G01N2021/3133 ,  G01N2201/0627 ,  G01N2201/08 ,  G01N2201/1211

Abstract: A concentration measurement device for measuring the concentration of a measured fluid within a measurement cell by detecting transmitted light that has passed through the measurement cell having a light incidence window and a light emission window disposed opposing to each other, comprising a reflected-light detector for detecting reflected light of the light incidence window.

公开(公告)号：US09800328B2

公开(公告)日：2017-10-24

申请号：US14982275

申请日：2015-12-29

Applicant: New York University

Inventor： Filip Mlekicki ,  Alexey Sidelev ,  Gamal Khalil ,  Masoud Ghandehari ,  Mohsen Hossein

IPC: H04B10/07 ,  G01N21/27 ,  G01N21/64 ,  G01N21/77

CPC classification number: H04B10/07 ,  G01N21/274 ,  G01N21/278 ,  G01N21/6408 ,  G01N21/7703 ,  G01N2021/772 ,  G01N2021/773 ,  G01N2021/7759 ,  G01N2021/7786 ,  G01N2201/1211

Abstract: An oxygen sensing system comprises a substrate structured to communicate optical signals. An oxygen sensing layer is disposed on the substrate and comprises an oxygen sensing molecule in a matrix in a first unexcited state and formulated to: (a) be excited by a first optical signal to move to a second state; (b) be quenched in the second state by oxygen; and (c) emit a second optical signal corresponding to an amount of oxygen. A protective layer, disposed on the oxygen sensing layer, includes at least one of i) an oleophobic layer and ii) an anti-fouling layer. A controller is optically coupled to the substrate and structured to generate the first optical signal, receive the second optical signal and determine oxygen concentration from the second optical signal.

公开(公告)号：US20170248519A1

公开(公告)日：2017-08-31

申请号：US15502186

申请日：2015-08-07

Applicant: TELEFLEX MEDICAL INCORPORATED

Inventor： John C. VICTOR ,  Michael J. MORRIS ,  Mahmoud R. SHAHRIARI

IPC: G01N21/64

CPC classification number: G01N21/64 ,  G01N21/6408 ,  G01N21/645 ,  G01N2021/6441 ,  G01N2021/6484 ,  G01N2201/1211

Abstract: The present application describes an optical sensor for measuring oxygen gas levels in a medium. The optical sensor includes a substrate having a first and second surface. The optical sensor also includes a first coating applied on the first surface of the substrate. The first coating may include an oxygen impermeable matrix doped with a first fluorophore. The optical sensor may include a second coating applied on the substrate. The present application also describes a capnography system for measuring oxygen including an optical sensor and an algorithm to estimate the maxima of oxygen levels from instantaneous oxygen levels and calculating instantaneous carbon dioxide levels from the difference between average maximum oxygen gas level and instantaneous oxygen gas level.

公开(公告)号：US20170191930A1

公开(公告)日：2017-07-06

申请号：US14986452

申请日：2015-12-31

Applicant: Google Inc.

Inventor： Daniel Adam Warren ,  Ian C. Smith ,  Morakinyo John Aina ,  Andrew W. Goldenson ,  Dietrich Ho ,  Anurag Gupta

IPC: G01N21/53 ,  G08B17/103 ,  G01K7/00

CPC classification number: G01N21/53 ,  G01K7/00 ,  G01K7/01 ,  G01K2217/00 ,  G01N2201/062 ,  G01N2201/1211 ,  G08B17/107

Abstract: Apparatus, systems, methods, and related computer program products for handling temperature variation with optoelectronic components of a hazard detection system are described herein. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a temperature of an environment of the hazard detection system. A power characteristic of an optoelectronic component of the hazard detection system may be used to determine a smoke condition of an environment of the hazard detection system. Optoelectronic components of the hazard detection system may be optically coupled to determine a smoke condition of an environment of the hazard detection system. Multiple optoelectronics of the hazard detection system may be operative to detect forward scatter and back scatter of one or more types of light to determine a characteristic of a hazard particle.

公开(公告)号：US09500585B2

公开(公告)日：2016-11-22

申请号：US14515644

申请日：2014-10-16

Applicant: Spectro Scientific, Inc.

Inventor： David B. Chamberlin ,  Michael Edward Glowinski ,  Donald Stanton Lavery

IPC: H01J40/14 ,  G01N21/59

CPC classification number: G01N21/59 ,  G01N21/3577 ,  G01N21/552 ,  G01N33/1833 ,  G01N2201/1211

Abstract: A photometer and associated method includes a source of radiation to be directed through a sample and a detector stage configured to measure radiation after passing through the sample. A voltage follower circuit is connected to the detector and is configured to provide an output signal which varies as a function of the detector output voltage and which varies as a function of the ambient temperature. A processing subsystem is configured to determine a temperature compensation factor from the voltage follower circuit output signal.

Abstract translation: 光度计和相关方法包括要引导通过样品的辐射源和被配置成在通过样品之后测量辐射的检测器级。 电压跟随器电路连接到检测器，并且被配置为提供作为检测器输出电压的函数而变化并且随环境温度变化的输出信号。 处理子系统被配置为从电压跟随器电路输出信号确定温度补偿因子。

公开(公告)号：US20160313241A1

公开(公告)日：2016-10-27

申请号：US15102769

申请日：2014-12-02

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kazuhiro OCHI ,  Tatsuya TAKAHASHI

IPC: G01N21/359 ,  G01N33/02

CPC classification number: G01N21/359 ,  G01N33/02 ,  G01N2201/068 ,  G01N2201/121 ,  G01N2201/1211 ,  G01N2201/1214

Abstract: This calorie measurement device is provided with the following: a light-emission unit that exposes a food article to light that contains near-infrared wavelengths; a light-reception unit that receives transmitted light that had passed through the food article and/or reflected light that was reflected by the food article; a correction unit that computes a base absorbance for the food article on the basis of the transmitted and/or reflected light and corrects the light intensity measured by the light-reception unit and/or the computed base absorbance on the basis of affecting factors, said affecting factors being those that affect the absorption and reflection of light by the food article but are essentially unaffected by the light-absorption and light-reflection properties of the components of the food article; and an analysis unit that computes an analysis value indicating the caloric content of the food article on the basis of the corrected light intensity measured by the light-reception unit and/or the corrected base absorbance.

Abstract translation: 这种卡路里测量装置具有以下装置：将食品暴露于含有近红外波长的光的发光单元; 光接收单元，其接收通过食品的透射光和/或被食品反射的反射光; 校正单元，其基于透射和/或反射光计算食品的基本吸光度，并且基于影响因素校正由光接收单元测量的光强度和/或计算的基底吸光度，所述校正单元 影响因素是影响食品对光的吸收和反射的因素，但基本上不受食品的组分的光吸收和光反射性质的影响; 以及分析单元，其基于由光接收单元测量的校正光强度和/或校正的基本吸光度计算指示食品的热量含量的分析值。

公开(公告)号：US09410886B2

公开(公告)日：2016-08-09

申请号：US13882585

申请日：2011-10-28

Applicant: Calum John Macgregor ,  Desmond Robert Gibson

Inventor： Calum John Macgregor ,  Desmond Robert Gibson

IPC: G01N21/00 ,  G01N21/61 ,  G01N21/27 ,  G01N21/3504 ,  G01J11/00

CPC classification number: G01N21/61 ,  G01J11/00 ,  G01N21/274 ,  G01N21/3504 ,  G01N2201/0696 ,  G01N2201/1211 ,  G01N2201/127

Abstract: An optical absorption gas sensor for detecting an analyte gas comprises a gas sample receiving chamber, at least one light emitting diode (LED) and a photodiode or other photosensor. A plurality of light pulses are generated by passing pulses of current through the at least one LED. The current through the at least one LED is measured a plurality of times during each pulse and taken into account when generating a compensated output signal. The transfer ratio between LED current and photodiode output signal is calculated a plurality of times during each pulse. An ADC measures the LED and photodiode currents alternately. The LED pulses are generated by inductor discharge flyback and the period of time for which current is supplied to the inductor prior to each pulse is selected so that the photodiode output current is at an optimal region within the input range of the ADC. At least the temperature of the at least one LED is measured and taken into account when generating the compensated output signal. Thus, rather than providing especially careful control of the LED pulses, the pulses are measured, enabling a simpler, lower power circuit which is tolerant of variations in temperature to be provided.

Abstract translation: 用于检测分析气体的光吸收气体传感器包括气体样品接收室，至少一个发光二极管（LED）和光电二极管或其它光电传感器。 通过使电流的脉冲通过至少一个LED来产生多个光脉冲。 通过至少一个LED的电流在每个脉冲期间被测量多次，并且在产生补偿的输出信号时被考虑。 在每个脉冲期间多次计算LED电流和光电二极管输出信号之间的传输比。 ADC交替测量LED和光电二极管电流。 LED脉冲由电感放电回扫产生，并且选择在每个脉冲之前向电感器提供电流的时间段，使得光电二极管输出电流处于ADC的输入范围内的最佳区域。 当产生补偿的输出信号时，至少测量并考虑至少一个LED的温度。 因此，不是特别仔细地控制LED脉冲，而是测量脉冲，使得能够提供容忍温度变化的更简单的较低功率电路。

公开(公告)号：US20160187258A1

公开(公告)日：2016-06-30

申请号：US14982275

申请日：2015-12-29

Applicant: New York University

Inventor： Filip Mlekicki ,  Alexey Sidelev ,  Gamal Khalil ,  Masoud Ghandehari ,  Mohsen Hossein

IPC: G01N21/64 ,  H04B10/07

CPC classification number: H04B10/07 ,  G01N21/274 ,  G01N21/278 ,  G01N21/6408 ,  G01N21/7703 ,  G01N2021/772 ,  G01N2021/773 ,  G01N2021/7759 ,  G01N2021/7786 ,  G01N2201/1211

Abstract: An oxygen sensing system comprises a substrate structured to communicate optical signals. An oxygen sensing layer is disposed on the substrate and comprises an oxygen sensing molecule in a matrix in a first unexcited state and formulated to: (a) be excited by a first optical signal to move to a second state; (b) be quenched in the second state by oxygen; and (c) emit a second optical signal corresponding to an amount of oxygen. A protective layer is disposed on the oxygen sensing layer. The protective layer includes at least one of i) an oleophobic layer configured to protect the oxygen sensing layer from hydrocarbons and organic solvents and ii) an anti-fouling layer configured to protect the oxygen sensing layer from biofouling. A controller is optically coupled to the substrate and structured to generate the first optical signal, receive the second optical signal and determine oxygen concentration from the second optical signal.

Abstract translation: 氧传感系统包括被构造成传递光信号的衬底。 氧传感层设置在衬底上，并且包括处于第一未激发状态的矩阵中的氧传感分子，并被配制为：（a）被第一光信号激​​发以移动到第二状态; （b）在第二种状态下用氧淬火; 和（c）发射对应于氧气量的第二光信号。 保护层设置在氧气感测层上。 所述保护层包括i）疏油层中的至少一种，所述疏油层被构造成保护氧传感层不受碳氢化合物和有机溶剂的影响，以及ii）防污层，其构造成保护氧传感层免于生物污损。 控制器光学耦合到衬底并被构造为产生第一光信号，接收第二光信号并且确定来自第二光信号的氧浓度。