公开(公告)号：US08374209B2

公开(公告)日：2013-02-12

申请号：US13160405

申请日：2011-06-14

Applicant: Robert D. Eckles ,  Tyler G. Anderson

Inventor： Robert D. Eckles ,  Tyler G. Anderson

IPC: H01S3/08

CPC classification number: G01N21/031 ,  G01J3/0297 ,  G01J3/42 ,  G01N21/15 ,  G01N33/0047 ,  G01N2021/151 ,  G01N2021/152 ,  G01N2021/3513 ,  G01N2021/399

Abstract: A multi-pass optical cell with an actuator for actuating a reflective surface is provided. In one preferred embodiment, an apparatus is provided comprising a first reflective surface, a second reflective surface, and a support structure supporting the first and second reflective surfaces. The support structure positions the first and second reflective surfaces to create an optical cell. The apparatus also comprises a source and a detector, which are positioned such that light emitted from the source is reflected in the optical cell at least one time between the first and second reflective surfaces before reaching the detector. The apparatus further comprises an actuator coupled with and operative to actuate the first reflective surface. In some embodiments, the actuator rotates the first reflective surface. Also, in some embodiments, the multi-pass optical cell is an open path multi-pass optical cell, while, in other embodiments, the multi-pass optical cell is a closed path multi-pass optical cell.

Abstract translation: 提供具有用于致动反射表面的致动器的多通光学单元。 在一个优选实施例中，提供了包括第一反射表面，第二反射表面和支撑第一和第二反射表面的支撑结构的装置。 支撑结构定位第一和第二反射表面以创建光学单元。 该设备还包括源和检测器，其被定位成使得从光源发射的光在到达检测器之前在第一和第二反射表面之间至少一次在光学单元中反射。 所述装置还包括与所述第一反射表面联动并且可操作地致动所述第一反射表面的致动器。 在一些实施例中，致动器旋转第一反射表面。 此外，在一些实施例中，多遍光学单元是开放式多通道光学单元，而在其他实施例中，多通道光学单元是封闭路径多通道光学单元。

公开(公告)号：US20130023782A1

公开(公告)日：2013-01-24

申请号：US13184820

申请日：2011-07-18

Applicant: Kai Karlsson

Inventor： Kai Karlsson

IPC: A61B5/08

CPC classification number: G01J5/046 ,  G01J1/58 ,  G01J3/42 ,  G01J5/0003 ,  G01J5/0014 ,  G01J5/0853 ,  G01J5/0862 ,  G01J5/28 ,  G01N21/643 ,  G01N21/8422

Abstract: A gas sensor is disclosed herein. The gas sensor includes an emitter for emitting radiation to a body at least partly coated with a luminophore emitting luminescent radiation indicative of an oxygen concentration when in contact with a respiratory gas. The gas sensor also includes a filter for transmitting the luminescent radiation emitted by the luminophore and an oxygen detector for receiving the luminescent radiation transmitted by the filter. The gas sensor also includes an infrared thermometry unit for receiving a thermal radiation from the luminophore. A gas analyzer and a method for measuring oxygen concentration of a respiratory gas are also provided.

Abstract translation: 本文公开了一种气体传感器。 气体传感器包括用于向至少部分地涂覆有发光体的发射体发射辐射的发射器，当与呼吸气体接触时发出指示氧浓度的发光发光。 气体传感器还包括用于透射由发光体发射的发光辐射的过滤器和用于接收由过滤器发射的发光辐射的氧气检测器。 气体传感器还包括用于接收来自发光体的热辐射的红外测温单元。 还提供了气体分析仪和用于测量呼吸气体的氧浓度的方法。

公开(公告)号：US20130021612A1

公开(公告)日：2013-01-24

申请号：US13553943

申请日：2012-07-20

Applicant: Masanori OKADA

Inventor： Masanori OKADA

IPC: G01N21/59

CPC classification number: G01J3/42 ,  G01N21/3504 ,  G01N21/39

Abstract: A timing generating circuit outputs, to a laser controller, a change pulse signal for changing an oscillation wavelength of the laser beam, and outputs, to a data acquisition circuit, a timing pulse signal for outputting data to a processor. An edge detection circuit detects an edge of a measurement signal outputted from a detector circuit. A delay measuring circuit receives a change pulse signal outputted from the timing generating circuit, receives an edge detection signal outputted from the edge detection circuit, and measures a delay of a time for which the laser beam with an oscillation wavelength changed based on the change pulse signal reaches the detector circuit after the change pulse signal is outputted from the timing generating circuit. The timing generating circuit delays a time for outputting data from the data acquisition circuit to the processor based on the delay of time outputted from the delay measuring circuit.

Abstract translation: 定时发生电路向激光控制器输出用于改变激光束的振荡波长的变化脉冲信号，并向数据采集电路输出用于向处理器输出数据的定时脉冲信号。 边缘检测电路检测从检测器电路输出的测量信号的边缘。 延迟测量电路接收从定时发生电路输出的变化脉冲信号，接收从边缘检测电路输出的边沿检测信号，并测量基于变化脉冲使振荡波长的激光束发生变化的时间的延迟 在从定时发生电路输出变化脉冲信号之后，信号到达检测器电路。 定时发生电路基于从延迟测量电路输出的时间延迟，延迟从数据采集电路向处理器输出数据的时间。

公开(公告)号：US20130016356A1

公开(公告)日：2013-01-17

申请号：US13182871

申请日：2011-07-14

Applicant: James D. Kendall

Inventor： James D. Kendall

IPC: G01N21/55

CPC classification number: G01N21/3151 ,  G01J3/0218 ,  G01J3/0272 ,  G01J3/10 ,  G01J3/42 ,  G01N21/314 ,  G01N33/24 ,  G01N2201/0221

Abstract: A gold detection apparatus capable of detecting gold in field mineral samples such as rock or soil with little or no preparation. Light in red and violet wavelengths is directed at a surface of a mineral sample and the reflected light intensity is measured by an array of sensors or pixels. Based on the characteristic reflectance properties of gold, the reflected light intensity in each wavelength is used to determine the presence of gold particles.

Abstract translation: 一种金检测装置，能够在很少或不需要准备的情况下检测现场矿物样品如岩石或土壤中的金。 红色和紫色波长的光指向矿物样品的表面，并通过传感器或像素阵列测量反射光强度。 基于金的特征反射特性，使用每个波长的反射光强度来确定金颗粒的存在。

公开(公告)号：US20130016343A1

公开(公告)日：2013-01-17

申请号：US13180508

申请日：2011-07-11

Applicant: John Douglas Corless ,  Andrew Weeks Kueny ,  Mark Anthony Meloni

Inventor： John Douglas Corless ,  Andrew Weeks Kueny ,  Mark Anthony Meloni

IPC: G01J1/00

CPC classification number: G01J3/0218 ,  G01J3/10 ,  G01J3/42 ,  G01N21/9501

Abstract: A referenced and stabilized optical measurement system includes a light source, a plurality of optical elements and optical fiber assemblies and a detector arranged to compensate for the effects of system variation which may affect measurement performance. A non-continuous light source provides a common source light on a common source path. A reference light and a measurement light are derived from the common source light and propagated across separate paths of optically matching optical components in order to produce a common signal variation on both the reference light signal and the measurement light signal. Light paths exposed to air are contained indiscrete volumes for purging gasses from the volumes. Ratios of the reference signal and measurement signal are acquired under various conditions for compensating the measurement signal for system variations.

Abstract translation: 参考和稳定的光学测量系统包括光源，多个光学元件和光纤组件以及被配置为补偿可能影响测量性能的系统变化的影响的检测器。 非连续光源在公共源路径上提供公共源光。 参考光和测量光源自公共源光，并且在光学匹配光学部件的分离路径上传播，以便在参考光信号和测量光信号两者上产生公共信号变化。 暴露于空气中的光路包含用于从体积中吹扫气体的不分流体积。 在各种条件下获取参考信号和测量信号的比例，以补偿用于系统变化的测量信号。

公开(公告)号：US20130003060A1

公开(公告)日：2013-01-03

申请号：US13493736

申请日：2012-06-11

Applicant: Toshiro KIMURA ,  Hiroyuki YOSHIMURA

Inventor： Toshiro KIMURA ,  Hiroyuki YOSHIMURA

IPC: G01J3/42

CPC classification number: G01J3/08 ,  G01J3/027 ,  G01J3/42

Abstract: A spectrophotometer 10 includes built-in detector 24 and external detector 32. When a mountable/removable optical path switcher 23a is installed in a specimen chamber 23, measurement based on detection signals from built-in detector 24 is replaced by measurement based on detection signals from external detector 32. The spectrophotometer further includes a measurement data threshold-value storage unit 51 that stores threshold value T for measurement data from built-in detector 24 or external detector 32, and a light-receiving detector recognition unit 52 that recognizes which detector is able to receive the measuring light beam based on the results of a comparison between threshold value T and measurement data from built-in detector 24 or external detector 32 while the measuring light beam is being introduced into specimen chamber 23.

Abstract translation: 分光光度计10包括内置检测器24和外部检测器32.当将可安装/可拆卸光路切换器23a安装在样本室23中时，基于来自内置检测器24的检测信号的测量被基于检测信号 分光光度计还包括测量数据阈值存储单元51，其存储来自内置检测器24或外部检测器32的测量数据的阈值T，以及光接收检测器识别单元52，其识别哪个检测器 能够基于来自内置检测器24或外部检测器32的阈值T与测量数据之间的比较结果同时测量光束被引入到样本室23中而接收测量光束。

公开(公告)号：US08325343B2

公开(公告)日：2012-12-04

申请号：US12658918

申请日：2010-02-16

Applicant: Barrett E. Cole ,  James A. Cox ,  Teresa M. Marta ,  Rodney H. Thorland

Inventor： Barrett E. Cole ,  James A. Cox ,  Teresa M. Marta ,  Rodney H. Thorland

IPC: G01N21/31

CPC classification number: G01J3/42

Abstract: A cavity ring-down spectroscope includes a ring-down cavity. A trigger detector is optically coupled within the ring-down cavity to generate a signal to indicate a desired radiation level in the ring-down cavity. A controller is coupled to the trigger detector to control light provided to the ring-down cavity. A ring-down time may then be measured.

Abstract translation: 空腔衰减分光镜包括一个下降腔。 触发检测器在环形腔内被光学耦合以产生一个信号，以指示在下降腔中的期望的辐射水平。 控制器耦合到触发检测器以控制提供给环形腔的光。 然后可以测量停机时间。

公开(公告)号：US08314391B2

公开(公告)日：2012-11-20

申请号：US12008244

申请日：2008-01-09

Applicant: Frank Martin Haran ,  Ross MacHattie ,  Ron E Beselt ,  David Jez

Inventor： Frank Martin Haran ,  Ross MacHattie ,  Ron E Beselt ,  David Jez

IPC: G01N21/01

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/42 ,  G01N21/3586 ,  G01N21/86 ,  G01N2021/8609

Abstract: A terahertz time-domain spectrometer scanning sensor system includes a transmitter and a receiver that are secured to a mobile scanner head. Optical pump light, in the form of short pulses launched from a stationary laser located remotely from the scanner head, is delivered to the transmitter and receiver through a controlled fiber optic cable arrangement so that variations in temporal pulse relays that are associated fiber optic transmission are minimized. In this fashion, the movement of the fiber optic cable is maneuvered along a defined path so as to control the bends in the cable and thus minimize variations in temporal delays that can otherwise arise as the pulses of light are transmitted through the fiber. Pulses of laser light launched from the laser into the optical fiber will exit the cable with consistent (i) time of arrival, (ii) phase duration, and (iii) polarization state and energy.

Abstract translation: 太赫兹时域光谱仪扫描传感器系统包括固定到移动扫描头的发射器和接收器。 从位于远离扫描仪头部的固定式激光器发射的短脉冲形式的光泵浦光通过受控的光纤电缆布置被传送到发射器和接收器，使得相关联的光纤传输的时间脉冲中继器的变化是 最小化。 以这种方式，沿着限定的路径操纵光纤电缆的运动，以便控制电缆中的弯曲，从而最小化随着光脉冲传输通过光纤而可能出现的时间延迟的变化。 激光从激光器发射到光纤中的脉冲将以一致的（i）到达时间，（ii）相位持续时间和（iii）极化状态和能量而退出电缆。

公开(公告)号：US20120273680A1

公开(公告)日：2012-11-01

申请号：US13462609

申请日：2012-05-02

Applicant: David W. Furry

Inventor： David W. Furry

IPC: G01J5/02

CPC classification number: G01M3/04 ,  G01J1/0252 ,  G01J1/0488 ,  G01J1/4228 ,  G01J3/42 ,  G01J5/0265 ,  G01J5/061 ,  G01J5/0846 ,  G01J5/0862 ,  G01J2005/0077 ,  G01M3/202 ,  G01N21/3518 ,  G01N33/0036 ,  G01N2021/1793 ,  G01N2021/3531 ,  H04N5/33

Abstract: A method of visually detecting a leak of a chemical emanating from a component includes aiming a passive infrared camera system towards the component; filtering an infrared image with an optical bandpass filter, the infrared image being that of the leak; after the infrared image passes through the lens and optical bandpass filter, receiving the filtered infrared image with an infrared sensor device; electronically processing the filtered infrared image received by the infrared sensor device to provide a visible image representing the filtered infrared image; and visually identifying the leak based on the visible image. The passive infrared camera system includes: a lens; a refrigerated portion including the infrared sensor device and the optical bandpass filter (located along an optical path between the lens and the infrared sensor device). At least part of a pass band for the optical bandpass filter is within an absorption band for the chemical.

Abstract translation: 视觉检测从部件发出的化学物质的泄漏的方法包括将被动红外摄像机系统朝向部件瞄准; 用光学带通滤波器过滤红外图像，红外图像是泄漏的图像; 在红外图像通过透镜和光学带通滤光器之后，用红外传感器装置接收过滤的红外图像; 电子地处理由红外线传感器装置接收的滤波后的红外图像，以提供表示经滤波的红外图像的可视图像; 并基于可见图像目视识别泄漏。 被动红外摄像机系统包括：镜头; 包括红外线传感器装置和光学带通滤光器（沿着透镜和红外线传感器装置之间的光路定位）的冷藏部。 用于光学带通滤波器的通带的至少一部分在化学品的吸收带内。

公开(公告)号：US20120261575A1

公开(公告)日：2012-10-18

申请号：US13252821

申请日：2011-10-04

Applicant: Richard Averitt ,  Xin Zhang ,  Hu Tao ,  Andrew Strikwerda ,  Willie J. Padilla ,  Eric Shaner

Inventor： Richard Averitt ,  Xin Zhang ,  Hu Tao ,  Andrew Strikwerda ,  Willie J. Padilla ,  Eric Shaner

IPC: H01L27/146 ,  G01J5/08

CPC classification number: H01L27/1446 ,  G01J3/42 ,  G01J5/0853 ,  G01J5/40 ,  H01L27/14649

Abstract: An apparatus and method are disclosed for detecting terahertz radiation at room temperature. A detecting pixel includes a sub-wavelength split-ring resonator, and is mechanically coupled to (but thermally decoupled from) a substrate via a cantilever formed from two materials that have a significant mismatch in their thermal expansion coefficients. Incident radiation causes the split-ring resonator to resonate, thereby generating heat that is transferred to the cantilever, causing the cantilever to flex. An optical readout system includes a secondary light source, such as a laser, that shines on a reflective surface on the pixel, whereby a photodiode detects the reflected light and permits calculation of a relative deflection of the pixel in the nanometer range. An exemplary detector has a noise equivalent power rating of approximately 60 pW/√Hz.

Abstract translation: 公开了用于在室温下检测太赫兹辐射的装置和方法。 检测像素包括亚波长分离环谐振器，并且通过由两个材料形成的悬臂机械耦合（但是与基板热分解），所述悬臂由热膨胀系数具有显着不匹配的两种材料形成。 入射辐射导致开环谐振器谐振，从而产生传递到悬臂的热量，导致悬臂弯曲。 光学读出系统包括发光在像素上的反射表面上的诸如激光器的次级光源，由此光电二极管检测反射光并允许像素在纳米范围内的相对偏转的计算。 一个示例性的检测器具有大约60pW /√Hz的噪声等效额定功率。