公开(公告)号：US5515163A

公开(公告)日：1996-05-07

申请号：US299896

申请日：1994-09-01

申请人： Vladimir Kupershmidt ,  Mikhail Kouchnir

发明人： Vladimir Kupershmidt ,  Mikhail Kouchnir

IPC分类号： G01N15/02 ,  G01N21/41 ,  G01N21/00

CPC分类号： G01N15/0205 ,  G01N2015/0238 ,  G01N2021/1757 ,  G01N2021/4792 ,  G01N21/41

摘要： A method and an apparatus for the analysis of particles contained in a material, such as particles in a fluid or on a surface, such as the surface of a semiconductor, by two orthogonally polarized, intensity and phase modulated laser beams, wherein the detected scattered light is synchronously demodulated. The apparatus comprises a laser source producing a polarized laser beam, a state of polarization modulator, and a photoreceiver for detecting light scattered by particles at an angle to the incident light. A synchronous demodulator, such as a dual channel lock-in amplifier, separates the intensity and phase modulated portions of the scattered signals. A reference unit for detecting a non-scattered light produced by the sample to provide a reference is preferably provided, as well. The size, index of refraction and identity, of the particles, for example, can be determined.

摘要翻译： 通过两个正交极化的强度和相位调制的激光束分析包含在流体或表面上的诸如半导体的表面的材料中的颗粒所包含的颗粒的方法和装置，其中所检测的散射 光被同步解调。 该装置包括产生偏振激光束的激光源，偏振调制器的状态和用于检测与入射光成角度的颗粒散射的光的光接收器。 诸如双通道锁相放大器的同步解调器分离散射信号的强度和相位调制部分。 也优选提供用于检测由样品产生的非散射光以提供参考的参考单元。 例如，可以确定颗粒的尺寸，折射率和身份。

公开(公告)号：US20170115264A1

公开(公告)日：2017-04-27

申请号：US15334391

申请日：2016-10-26

申请人： SICK AG

发明人： Christian KUHN ,  Rolf SCHIFFLER ,  Daniel SCHIMANEK

IPC分类号： G01N33/00 ,  G01N21/61

CPC分类号： G01N33/0062 ,  G01N21/534 ,  G01N21/61 ,  G01N21/8507 ,  G01N33/0009 ,  G01N2021/1757 ,  G01N2021/399 ,  G01N2021/536 ,  G01N2021/8521

摘要： The present invention relates to an analysis apparatus for analyzing a gas sample comprising a concentration measurement path receiving the gas sample; a light transmitter for transmitting light signals into the concentration measurement path; a detector for detecting light signals exiting the concentration measurement path; an evaluation unit which is adapted to determine the concentration of at least one substance present in the gas sample on the basis of the intensity of the detected light signals and on the basis of the length of the concentration measurement path; and a measurement device which is configured to determine the length of the time of flight path of the transmitted light signals optically using the light transmitter, with the evaluation unit being adapted to determine the length of the concentration measurement path on the basis of the determined length of the time of flight path.

公开(公告)号：US20170045462A1

公开(公告)日：2017-02-16

申请号：US14888281

申请日：2015-03-10

申请人： TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING

发明人： Hiroshi OHNO ,  Yuji SASAKI ,  Mitsuo SASAKI ,  Takashi OBARA ,  Kazuyuki MASUKAWA

IPC分类号： G01N21/94 ,  G02B5/08 ,  G02B19/00 ,  G02B27/00

CPC分类号： G01N21/94 ,  B23K26/03 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/1476 ,  B23K26/21 ,  B23K26/707 ,  G01N21/15 ,  G01N21/718 ,  G01N21/954 ,  G01N2021/1757 ,  G02B5/08 ,  G02B19/0052 ,  G02B19/0076 ,  G02B27/0006

摘要： An optical processing head that detects a trouble of an optical processing head that will be generated at the time of optical processing before the trouble occurs is disclosed. The optical processing head that performs processing by condensing, on a process surface, a ray emitted by a light source for processing includes a cylindrical housing that surrounds a ray for processing emitted by the light source for processing, a ray emitter for inspection that is incorporated in the cylindrical housing and arranged outside the path of the ray for processing, and a light receiver that is incorporated in the cylindrical housing, arranged outside the path of the ray for processing, and receives a ray for inspection emitted by the ray emitter for inspection. The contamination of the inner surface of the cylindrical housing or the concentration of a scattering object flowing into the cylindrical housing is inspected by using a signal acquired from the light receiver.

摘要翻译： 公开了一种光学处理头，其检测在故障发生之前在光学处理时将产生的光学处理头的故障。 通过在处理表面上凝结由加工用光源发出的射线来进行处理的光学处理头包括：圆筒状壳体，其包围由用于处理的光源发出的处理用的射线，用于检查用的射线发射体， 在圆柱形壳体中并且布置在用于处理的光线的路径外部，并且被配置在圆柱形壳体中的光接收器，布置在用于处理的光线的路径外部，并且接收由射线发射器检查的射线用于检查 。 通过使用从光接收器获取的信号来检查圆柱形壳体的内表面的污染或流入圆柱形壳体中的散射物体的集中。

公开(公告)号：US07352458B2

公开(公告)日：2008-04-01

申请号：US11376396

申请日：2006-03-15

申请人： Xiaoliang Sunney Xie ,  Feruz Ganikhanov ,  Conor Evans

发明人： Xiaoliang Sunney Xie ,  Feruz Ganikhanov ,  Conor Evans

IPC分类号： G01J3/44

CPC分类号： G01J3/44 ,  G01J3/433 ,  G01N21/636 ,  G01N21/65 ,  G01N2021/1757 ,  G01N2021/653

摘要： A system is disclosed for detecting a nonlinear coherent field induced in a sample. The system includes optics, a modulation system, and a detector system. The optics are for directing a first electromagnetic field at a first frequency ω1 and a second electromagnetic field at a second frequency ω2 toward a focal volume such that a difference frequency ω1–ω2 is resonant with a vibrational frequency of a sample in the focal volume. The modulation system is for modulating the difference frequency ω1–ω2 such that the difference frequency ω1–ω2 is tuned in and out of the vibrational frequency of the sample of at a modulation frequency. The detector system is for detecting an optical field that is generated through non-linear interaction of ω1 and ω2 and the sample responsive to the modulation frequency.

摘要翻译： 公开了一种用于检测样品中引起的非线性相干场的系统。 该系统包括光学器件，调制系统和检测器系统。 所述光学器件用于将第一频率ω1> 1的第一电磁场和第二频率ω2 <2>的第二电磁场引向焦点体积，使得差频ω ＆lt; 1＆gt; -omega 2＆lt; 2＆gt;与焦点体积中的样本的振动频率共振。 调制系统用于调制差分频率ω1-ω2-ω2，使得差频ω1-ω2大于2 / SUB>被调谐出调制频率的样本的振动频率。 检测器系统用于检测通过ω1和ω2 2 N的非线性相互作用产生的光场，以及响应调制频率的样本。

公开(公告)号：US20070091305A1

公开(公告)日：2007-04-26

申请号：US11376396

申请日：2006-03-15

申请人： Xiaoliang Xie ,  Feruz Ganikhanov ,  Conor Evans

发明人： Xiaoliang Xie ,  Feruz Ganikhanov ,  Conor Evans

IPC分类号： G01J3/44 ,  G01N21/65

CPC分类号： G01J3/44 ,  G01J3/433 ,  G01N21/636 ,  G01N21/65 ,  G01N2021/1757 ,  G01N2021/653

摘要： A system is disclosed for detecting a nonlinear coherent field induced in a sample. The system includes optics, a modulation system, and a detector system. The optics are for directing a first electromagnetic field at a first frequency ω1 and a second electromagnetic field at a second frequency ω2 toward a focal volume such that a difference frequency ω1−ω2 is resonant with a vibrational frequency of a sample in the focal volume. The modulation system is for modulating the difference frequency ω1−ω2 such that the difference frequency ω1−ω2 is tuned in and out of the vibrational frequency of the sample at a modulation frequency. The detector system is for detecting an optical field that is generated through non-linear interaction of ω1 and ω2 and the sample responsive to the modulation frequency.

摘要翻译： 公开了一种用于检测样品中引起的非线性相干场的系统。 该系统包括光学器件，调制系统和检测器系统。 所述光学器件用于将第一频率ω1> 1的第一电磁场和第二频率ω2 <2>的第二电磁场引向焦点体积，使得差频ω ＆lt; 1＆gt; -omega 2＆lt; 2＆gt;与焦点体积中的样本的振动频率共振。 调制系统用于调制差分频率ω1-ω2-ω2，使得差频ω1-ω2大于2 / SUB>以调制频率被调谐进出样品的振动频率。 检测器系统用于检测通过ω1和ω2 2 N的非线性相互作用产生的光场，以及响应调制频率的样本。

公开(公告)号：US07072039B2

公开(公告)日：2006-07-04

申请号：US10644038

申请日：2003-08-20

申请人： Michael E. Dobbs ,  Jeff D. Pruitt ,  Matthew L. Gypson ,  Benjamin R. Neff

发明人： Michael E. Dobbs ,  Jeff D. Pruitt ,  Matthew L. Gypson ,  Benjamin R. Neff

IPC分类号： G01J4/00

CPC分类号： G01N21/21 ,  G01J3/447 ,  G01N2021/1757 ,  G01N2021/1793 ,  G01N2201/0691

摘要： Remotely sensing a target may include generating a first beam of optical radiation that is modulated at a first frequency and polarized at a first polarization. A second beam of optical radiation that is modulated at a second frequency and polarized at a second polarization may also be generated. The first and second beams of optical radiation may be transmitted to the target. Radiation at the first polarization and radiation at the second polarization may be detected from the target using a phase sensitive technique and the first and second frequencies.

摘要翻译： 远程感测目标可以包括产生以第一频率被调制并以第一极化极化的第一光束。 也可以产生以第二频率被调制并以第二极化极化的第二光束。 第一和第二光辐射束可以传输到目标。 可以使用相敏技术和第一和第二频率从目标检测第一极化处的辐射和第二极化处的辐射。

公开(公告)号：US20170042428A1

公开(公告)日：2017-02-16

申请号：US15305874

申请日：2015-04-23

申请人： HELMHOL TZ ZENTRUM MUENCHEN DEUTSCHES FORSCHUNGSZENTRUM FUER etc.

发明人： Stephan KELLNBERGER ,  Pouyan MOHAJERANI ,  Vasilis NTZIA-CHRISTOS

IPC分类号： A61B5/00

CPC分类号： A61B5/0093 ,  A61B5/0095 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/14551 ,  A61B5/7228 ,  A61B5/7257 ,  A61B2576/00 ,  G01N21/1702 ,  G01N2021/1757 ,  G01N2021/178 ,  G01N2201/0625 ,  G01N2201/0626 ,  G01N2223/405 ,  G01N2223/423 ,  G01N2223/508

摘要： The invention relates to a device (100) and a corresponding method for thermoacoustic sensing, in particular thermoacoustic imaging, the device (100) comprising: a) an irradiation unit (10) configured to generate electromagnetic and/or particle energy exhibiting a first modulation, the first modulation comprising at least one frequency and to continuously emit the energy towards a target (1), whereby acoustic waves are continuously generated in the target, the acoustic waves exhibiting a second modulation, the second modulation comprising the at least one frequency and/or a harmonic frequency of the at least one frequency; b) a detection unit (20) configured to simultaneously detect the acoustic waves exhibiting the second modulation while the energy exhibiting the first modulation is being continuously emitted towards the target (1); and c) a processing unit (30) configured to determine at least one thermoacoustic value of an amplitude and/or a phase of the second modulation of the acoustic waves at the at least one frequency and/or at a harmonic frequency of the at least one frequency. The invention allows for fast and economic thermoacoustic sensing, in particular imaging of a region of interest of an object.

摘要翻译： 本发明涉及一种用于热声感测，特别是热声成像的装置（100）和相应的方法，所述装置（100）包括：a）被配置为产生表现出第一调制的电磁和/或粒子能量的照射单元（10） ，所述第一调制包括至少一个频率并且朝向目标（1）持续发射能量，由此在所述目标中连续地产生声波，所述声波呈现第二调制，所述第二调制包括所述至少一个频率和 /或所述至少一个频率的谐波频率; b）检测单元（20），被配置为在向所述目标（1）持续发射呈现所述第一调制的能量时，同时检测出呈现所述第二调制的声波; 以及c）处理单元（30），其被配置为确定在所述至少一个频率和/或所述至少一个谐波频率处的所述声波的所述第二调制的幅度和/或相位的至少一个热声值 一个频率。 本发明允许快速和经济的热声感测，特别是对象感兴趣区域的成像。

公开(公告)号：US20150014541A1

公开(公告)日：2015-01-15

申请号：US14324443

申请日：2014-07-07

申请人： Siemens Aktiengesellschaft

发明人： Daniel Depenheuer ,  Christoph Wolfgang Marquardt

IPC分类号： G01N21/59 ,  G01N33/00

CPC分类号： G01N21/59 ,  G01N21/274 ,  G01N21/314 ,  G01N21/3504 ,  G01N21/39 ,  G01N33/0062 ,  G01N2021/1748 ,  G01N2021/1757 ,  G01N2021/399 ,  G01N2201/06113

摘要： A method for measuring the concentration of a gas component in a measuring gas, wherein a semiconductor laser is periodically actuated by a current ramp to scan a selected absorption line in a wavelength-dependent manner and to determine the concentration of the gas component based on the reduction in the light intensity as a result of the absorption of the light at the location of the absorption line.

摘要翻译： 一种用于测量测量气体中的气体成分浓度的方法，其中通过电流斜坡周期性地驱动半导体激光器以以波长依赖的方式扫描所选择的吸收线，并且基于所述方法确定气体成分的浓度 由于在吸收线的位置处的光的吸收而导致的光强度的降低。

公开(公告)号：US07889343B2

公开(公告)日：2011-02-15

申请号：US11631621

申请日：2005-07-01

申请人： Brahim Lounis ,  Laurent Cognet ,  Stephane Berciaud

发明人： Brahim Lounis ,  Laurent Cognet ,  Stephane Berciaud

IPC分类号： G01J4/00 ,  G01N21/41 ,  G30G5/16

CPC分类号： G01N15/1475 ,  G01N21/1717 ,  G01N2021/1725 ,  G01N2021/1731 ,  G01N2021/1757

摘要： Method and system for optical detection of nano-objects in a refracting medium. A nano-object (n_oi) and the refractive medium are illuminated (A) with a periodically amplitude modulated coherent electromagnetic heating wave (HB(Ω)), to generate a specified temperature and refractive index profile in the vicinity of the nano-object, and with a coherent electromagnetic probe wave (PB) to generate an emerging probe wave (EPB(Ω)) having at least one intensity component amplitude modulated by a beat at the modulation frequency of the coherent heating wave. The intensity component amplitude modulated by a beat is detected (C) in the emerging wave (EPB(Ω)), to distinguish and represent this nano-object in the refractive medium. The invention is useful in the detection of nano-objects in an industrial, physiological or intracellular medium.

摘要翻译： 折射介质中纳米物体的光学检测方法和系统。 纳米物体（n_oi）和折射介质用周期性调幅相干电磁加热波（HB（＆OHgr））照射（A），以在纳米物体附近产生规定的温度和折射率分布 并且具有相干的电磁探测波（PB）以产生具有在相干加热波的调制频率处由节拍调制的至少一个强度分量振幅的新兴探测波（EPB（＆OHgr）））。 在出现的波（EPB（＆OHgr））中检测到由拍子调制的强度分量幅度（C），以在折射介质中区分并表示该纳米物体。 本发明可用于检测工业，生理或细胞内介质中的纳米物体。

公开(公告)号：US20070296972A1

公开(公告)日：2007-12-27

申请号：US11631621

申请日：2005-07-01

申请人： Brahim Lounis ,  Laurent Cognet ,  Stephane Berciaud

发明人： Brahim Lounis ,  Laurent Cognet ,  Stephane Berciaud

IPC分类号： G01J4/00 ,  G01N21/41

CPC分类号： G01N15/1475 ,  G01N21/1717 ,  G01N2021/1725 ,  G01N2021/1731 ,  G01N2021/1757

摘要： The invention relates to a method and a system for optical detection of nano-objects in a refracting medium. A nano-object (n_oi) and the refractive medium are illuminated (A) with a periodically amplitude modulated coherent electromagnetic heating wave (HB(Ω)), to generate a specified temperature and refractive index profile in the vicinity of the nano-object, and with a coherent electromagnetic probe wave (PB) to generate an emerging probe wave (EPB(Ω)) having at least one intensity component amplitude modulated by a beat at the modulation frequency of the coherent heating wave. The intensity component amplitude modulated by a beat is detected (C) in the emerging wave (EPB(Ω)), to distinguish and represent this nano-object in the refractive medium. Application to the detection of nano-objects in an industrial, physiological or intracellular medium.

摘要翻译： 本发明涉及一种折射介质中的纳米物体的光学检测方法和系统。 用周期性幅度调制的相干电磁加热波（HB（Omega））照射（A）纳米物体（n_o）和折射介质（A），以产生指定的温度和折射率分布 纳米物体的附近，并具有相干的电磁探测波（PB），以产生具有在相干加热波的调制频率处由节拍调制的至少一个强度分量幅度的新出现的探测波（EPB（Omega） 。 在出现波（EPB（Omega））中检测（C）由拍子调制的强度分量幅度，以区分和表示折射介质中的该纳米物体。 应用于工业，生理或细胞内培养基中纳米物体的检测。