公开(公告)号：US20170205286A1

公开(公告)日：2017-07-20

申请号：US15001372

申请日：2016-01-20

Applicant: Kidde Technologies, Inc.

Inventor： Mark T. Kern ,  Ken Bell ,  Terry Simpson ,  Christopher Wilson ,  David Frasure ,  Charles B. McLean ,  Clinton E. Piland

IPC: G01J3/02 ,  G01J3/10 ,  H05B33/08 ,  G01J3/50

CPC classification number: G01J3/0297 ,  G01J3/10 ,  G01J3/501 ,  G01J5/0018 ,  G01J5/20 ,  G01J5/60 ,  G01J2003/102 ,  G01J2005/0048 ,  G08B29/145 ,  H05B33/0845

Abstract: A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.

公开(公告)号：US09523666B2

公开(公告)日：2016-12-20

申请号：US14570401

申请日：2014-12-15

Applicant: Aerodyne Research, Inc.

Inventor： Joseph R. Roscioli ,  Scott C. Herndon ,  David D. Nelson, Jr.

IPC: G01N33/00 ,  G01N27/00 ,  G01J3/10 ,  G01N1/20 ,  G01N27/414 ,  C12M1/34 ,  B01J19/00

CPC classification number: G01N33/006 ,  B01J19/002 ,  B01J2219/02 ,  C12M41/32 ,  G01J3/108 ,  G01J2003/102 ,  G01N27/4141 ,  G01N27/4145 ,  G01N33/0037 ,  G01N33/0054 ,  G01N33/0062 ,  Y02A50/245 ,  Y02A50/246

Abstract: In one embodiment, active (continuous or intermittent) passivation may be employed to prevent interaction of sticky molecules with interfaces inside of an instrument (e.g., an infrared absorption spectrometer) and thereby improve response time. A passivation species may be continuously or intermittently applied to an inlet of the instrument while a sample gas stream is being applied. The passivation species may have a highly polar functional group that strongly binds to either water or polar groups of the interfaces, and once bound presents a non-polar group to the gas phase in order to prevent further binding of polar molecules. The instrument may be actively used to detect the sticky molecules while the passivation species is being applied.

Abstract translation: 在一个实施方案中，可以使用活性（连续或间歇）钝化来防止粘性分子与仪器内部的界面（例如，红外吸收光谱仪）的相互作用，从而提高响应时间。 当应用样品气流时，钝化物质可以连续地或间歇地施加到仪器的入口。 钝化物质可以具有与界面的水或极性基团强烈结合的高极性官能团，并且一旦结合，将非极性基团提供给气相，以防止极性分子的进一步结合。 当施加钝化物质时，该仪器可以被主动用于检测粘性分子。

公开(公告)号：US20160123809A1

公开(公告)日：2016-05-05

申请号：US14581935

申请日：2014-12-23

Applicant: TruTag Technologies, Inc.

Inventor： Timothy Learmonth ,  Hod Finkelstein

IPC: G01J3/26 ,  G01J3/45 ,  G01N21/25 ,  G01J3/02

CPC classification number: G01J3/26 ,  B82Y20/00 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0259 ,  G01J3/0272 ,  G01J3/10 ,  G01J2003/102 ,  G01N21/255 ,  G01N21/27 ,  G01N2201/061 ,  G01N2201/0636

Abstract: A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length but that is less than the long coherence lengths.

Abstract translation: 用于宽范围光谱测量的系统包括一个或多个宽带源，可调节的法布里 - 珀罗标准具和检测器。 一个或多个宽带源是照亮样本，其中一个或多个宽带源具有短的宽带源相干长度。 可调节的法布里 - 珀罗标准具是光学处理反射光以提取具有精细光谱分辨率的光谱信息。 检测器用于检测来自样品的反射光，其中反射光由具有长相干长度的照明光的多个窄带子集构成，并且使用可调节法布里 - 珀罗标准具的多个设置进行光学处理，其中 多个设置包括法布里 - 珀罗标准具板的分离，其大于宽带源相干长度，但小于长相干长度。

公开(公告)号：US20150268096A1

公开(公告)日：2015-09-24

申请号：US13658535

申请日：2012-10-23

Applicant: Eric Udd

Inventor： Eric Udd

IPC: G01J3/18 ,  G01L11/02 ,  G01L1/24 ,  G01J3/10 ,  G01K11/32

CPC classification number: G01J3/1895 ,  G01J3/10 ,  G01J2003/102 ,  G01K11/3206 ,  G01L1/246 ,  G01L11/025

Abstract: A fiber grating sensor system is used to measure key parameters that include pressure, strain and temperature at specific locations and at high speed. The system relies on spectral properties associated with the fiber grating sensors, the light source and the optical detection system to provide these capabilities. The system has been successfully applied to measurement of pressures up to 1,200,000 psi and by increasing the spectral width of the light source extensions of pressure measurements to 4,000,000 psi and higher are possible. Temperature change measurements have been made of 400 degrees C. over a period of 25 micro-seconds limited by the physical response of the fiber sensors and the output detector bandwidth both of which can be greatly improved by reducing fiber sizes and with improved detectors. Novel methods have been devised to lower cost and enable measurements with spatial location, speed and accuracy that have been very difficult or not yet achieved.

Abstract translation: 光纤光栅传感器系统用于测量关键参数，包括特定位置和高速下的压力，应变和温度。 该系统依赖于与光纤光栅传感器，光源和光学检测系统相关联的光谱性质来提供这些能力。 该系统已经成功应用于高达1,200,000psi的压力测量，并且通过将压力测量的光源延伸的光谱宽度增加到4,000,000psi和更高是可能的。 通过光纤传感器的物理响应和输出检测器带宽限制的25微秒的时间内，温度变化测量已经达到400摄氏度，两者都可以通过减小光纤尺寸和改进的检测器而大大提高。 已经设计了新的方法来降低成本并且使得具有非常困难或尚未实现的空间位置，速度和精度的测量。

公开(公告)号：US20140253918A1

公开(公告)日：2014-09-11

申请号：US14198979

申请日：2014-03-06

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yasuyuki OZEKI ,  Kazuyoshi ITOH ,  Keisuke NOSE

IPC: G01J3/44

CPC classification number: G01J3/4412 ,  G01J3/10 ,  G01J3/44 ,  G01J2003/102 ,  G01N21/65 ,  G01N2021/655

Abstract: The Raman scattering measuring apparatus includes a first light generator to produce a first light, a second light generator to produce a second light having a frequency different from that of the first light, an optical system to focus the first and second lights to a sample, and a detector to detect the first or second light intensity-modulated by Raman scattering. The first light generator includes a wavelength extractor that performs a wavelength filtering to extract light of an extraction wavelength from light in a wavelength range including the extraction wavelength and an amplification of the light extracted by the wavelength filtering. The wavelength extractor performs a first filtering on an entering light, a first amplification on the light extracted by the first filtering, a second filtering on the light amplified by the first amplification and a second amplification on the light extracted by the second filtering.

Abstract translation: 拉曼散射测量装置包括产生第一光的第一光发生器，产生频率不同于第一光的第二光的第二光发生器，将第一和第二光聚焦到样品的光学系统， 以及检测器，用于检测由拉曼散射强度调制的第一或第二光。 第一光发生器包括波长提取器，其执行波长滤波以从包括提取波长的波长范围内的光提取提取波长的光并且通过波长滤波提取的光的放大。 波长提取器对入射光进行第一滤波，对通过第一滤波提取的光进行第一次放大，对通过第一次放大放大的光进行第二次滤波，并对通过第二次滤波提取的光进行第二次放大。

公开(公告)号：US20130286397A1

公开(公告)日：2013-10-31

申请号：US13873636

申请日：2013-04-30

Applicant: EOS Photonics, Inc.

Inventor： Mark F. Witinski ,  Laurent Diehl ,  Christian Pfluegl

IPC: G01J3/42

CPC classification number: G01J3/42 ,  G01J3/0208 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/10 ,  G01J2003/102

Abstract: A spectroscopy system includes an array of quantum cascade lasers (QCLs) that emits an array of non-coincident laser beams. A lens array coupled to the QCL array substantially collimates the laser beams, which propagate along parallel optical axes towards a sample. The beams remain substantially collimated over the lens array's working distance, but may diverge when propagating over longer distances. The collimated, parallel beams may be directed to/through the sample, which may be within a sample cell, flow cell, multipass spectroscopic absorption cell, or other suitable holder. Alternatively, the beams may be focused to a point on, near, or within the target using a telescope or other suitable optical element(s). When focused, however, the beams remain non-coincident; they simply intersect at the focal point. The target transmits, reflects, and/or scatters this incident light to a detector, which transduces the detected radiation into an electrical signal representative of the target's absorption or emission spectrum.

Abstract translation: 光谱系统包括发射非重合激光束阵列的量子级联激光器阵列（QCL）。 耦合到QCL阵列的透镜阵列基本上准直了沿着平行光轴朝向样本传播的激光束。 光束在透镜阵列的工作距离上保持基本上准直，但是当在较长距离上传播时可能会发散。 准直的平行光束可以被引导到/通过样品，其可以在样品池，流通池，多光谱吸收单元或其它合适的保持器内。 或者，可以使用望远镜或其它合适的光学元件将光束聚焦到靶上，接近或在目标内的点。 然而，当专注时，梁保持不重合; 他们只是在焦点处相交。 目标将该入射光透射，反射和/或散射到检测器，检测器将检测到的辐射转换成代表目标吸收或发射光谱的电信号。

公开(公告)号：US20120239013A1

公开(公告)日：2012-09-20

申请号：US13241900

申请日：2011-09-23

Applicant: Mohammed N. Islam

Inventor： Mohammed N. Islam

IPC: A61B18/22

CPC classification number: G01J3/108 ,  G01B9/02091 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/423 ,  G02B6/29349 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/094076 ,  H01S3/1024 ,  H01S3/302 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/1092 ,  H01S5/146 ,  H01S5/4012 ,  H01S2301/085

Abstract: A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or more optical amplifiers that are coupled to the pump signal and are capable of amplifying the pump signal to a peak power of at least 500 W. The light source further includes a first fiber that is coupled to the one or more optical amplifiers. The first fiber including an anomalous group-velocity dispersion regime and a modulational instability mechanism that operates to modulate the pump signal. The light source also includes a nonlinear element that is coupled to the first fiber that is capable of broadening the pump optical spectral width to at least 100 nm through a nonlinear effect in the nonlinear element.

Abstract translation: 宽带光源包括能够产生波长短于2.5微米的泵浦信号，至少100皮秒的脉冲宽度和泵浦光谱宽度的一个或多个激光二极管。 光源还包括耦合到泵浦信号并且能够将泵浦信号放大到至少500W的峰值功率的一个或多个光放大器。光源还包括第一光纤，其耦合到一个或 更多的光放大器。 第一光纤包括异常组 - 速度色散方案和用于调制泵浦信号的调制不稳定机制。 光源还包括耦合到第一光纤的非线性元件，其能够通过非线性元件中的非线性效应将泵浦光谱宽度扩展至至少100nm。

公开(公告)号：US20090204110A1

公开(公告)日：2009-08-13

申请号：US12366323

申请日：2009-02-05

Applicant: Mohammed N. Islam

Inventor： Mohammed N. Islam

IPC: A61B18/20 ,  H01S3/30 ,  G01B9/02 ,  G01J3/00 ,  H01S3/10

CPC classification number: G01J3/108 ,  G01B9/02091 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/423 ,  G02B6/29349 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/094076 ,  H01S3/1024 ,  H01S3/302 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/1092 ,  H01S5/146 ,  H01S5/4012 ,  H01S2301/085

Abstract: A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or more optical amplifiers that are coupled to the pump signal and are capable of amplifying the pump signal to a peak power of at least 500 W. The light source further includes a first fiber that is coupled to the one or more optical amplifiers. The first fiber including an anomalous group-velocity dispersion regime and a modulational instability mechanism that operates to modulate the pump signal. In one particular embodiment, the pump signal wavelength resides in the anomalous group-velocity dispersion regime of the first fiber and where different intensities in the pump signal can cause relative motion between different parts of the modulated pump signal produced through modulational instability in the first fiber. The light source also including a nonlinear element that is coupled to the first fiber that is capable of broadening the pump optical spectral width to at least 100 nm through a nonlinear effect in the nonlinear element.

Abstract translation: 宽带光源包括能够产生波长短于2.5微米的泵浦信号，至少100皮秒的脉冲宽度和泵浦光谱宽度的一个或多个激光二极管。 光源还包括耦合到泵浦信号并且能够将泵浦信号放大到至少500W的峰值功率的一个或多个光放大器。光源还包括第一光纤，其耦合到一个或 更多的光放大器。 第一光纤包括异常组 - 速度色散方案和用于调制泵浦信号的调制不稳定机制。 在一个具体实施例中，泵浦信号波长驻留在第一光纤的异常群 - 速度色散方案中，并且其中泵浦信号中的不同强度可引起通过第一光纤中的调制不稳定性产生的调制泵浦信号的不同部分之间的相对运动 。 光源还包括耦合到第一光纤的非线性元件，其能够通过非线性元件中的非线性效应将泵浦光谱宽度扩展至至少100nm。

公开(公告)号：US06765669B1

公开(公告)日：2004-07-20

申请号：US10021307

申请日：2001-10-22

Applicant: Romuald Pawluczyk

Inventor： Romuald Pawluczyk

IPC: G01J328

CPC classification number: G01J3/10 ,  G01J3/2803 ,  G01J2003/102 ,  G01J2003/1282

Abstract: The present invention provides an apparatus and method for enhancing the system response of a photodetector array based spectrometer. For a spectrometer with a given system response curve, secondary light sources are provided to improve the system response in the spectral ranges where the dynamic range is less than at the peak of the curve. In one embodiment, multiple light sources can be combined by means of multiple branches of fibre optic bundles. The secondary light sources may be used in combination with suitable shaping filters and/or masks to further flatten the system response.

Abstract translation: 本发明提供了一种用于增强基于光电检测器阵列的光谱仪的系统响应的装置和方法。 对于具有给定系统响应曲线的光谱仪，提供二次光源以改善动态范围小于曲线峰值的光谱范围内的系统响应。 在一个实施例中，可以通过光纤束的多个分支来组合多个光源。 二次光源可以与合适的整形滤波器和/或掩模组合使用，以进一步平坦化系统响应。

公开(公告)号：US5135305A

公开(公告)日：1992-08-04

申请号：US662931

申请日：1991-03-01

Applicant: Bruce C. Fitz-Patrick

Inventor： Bruce C. Fitz-Patrick

IPC: G01J3/06 ,  G01J3/10 ,  G01J3/42 ,  G01N21/72 ,  G01N21/74

CPC classification number: G01J3/06 ,  G01J3/10 ,  G01J3/42 ,  G01J2003/102 ,  G01J3/0202 ,  G01N21/72 ,  G01N21/74

Abstract: A positioning mechanism support structure mounted for movement between first and second predetermined positions in a spectroanalytical system includes relative to a reference member by a plurality of stabilizing coupling assemblies, and drive structure for producing motion of the support structure relative to the reference structure between first and second stop structures that define the first and second predetermined positions, respectively. Interlock structure responds to the drive force generated by the drive structure and de-energizes the drive structure in response to the drive force applied to that support structure exceeding a predetermined threshold value.

Abstract translation: 安装用于在分析系统中在第一和第二预定位置之间移动的定位机构支撑结构包括通过多个稳定耦合组件相对于参考构件的驱动结构，以及用于在第一和第二和第 分别限定第一和第二预定位置的第二停止结构。 联锁结构响应于由驱动结构产生的驱动力并且响应于施加到该支撑结构的驱动力超过预定阈值而使驱动结构断电。