公开(公告)号：US07307716B2

公开(公告)日：2007-12-11

申请号：US10948660

申请日：2004-09-22

Applicant: Joel A. Silver

Inventor： Joel A. Silver

IPC: G01N1/10

CPC classification number: G01N21/05 ,  G01N21/031

Abstract: A multiple pass optical cell and method comprising providing a pair of opposed mirrors, one cylindrical and one spherical, introducing light into the cell via an entrance mechanism, and extracting light from the cell via an exit mechanism, wherein the entrance mechanism and exit mechanism are coextensive or non-coextensive.

Abstract translation: 一种多通道光学单元和方法，包括提供一对相对的反射镜，一个圆柱形和一个球形的，通过入口机构将光引入所述单元，以及经由出口机构从所述单元提取光，其中所述入口机构和出口机构是 共同或不共同的。

公开(公告)号：US07003436B1

公开(公告)日：2006-02-21

申请号：US10310259

申请日：2002-12-04

Applicant: Daniel J. Kane ,  David Christian Hovde

Inventor： Daniel J. Kane ,  David Christian Hovde

IPC: G06F11/00

CPC classification number: G01N21/39 ,  G01J3/28 ,  G01J3/433

Abstract: An apparatus, software, and method for segregating out background signals from a signal of interest comprising sampling a signal that includes the background signals over one or more periods of time, forming a matrix from results of the sampling, calculating a matrix of basis functions via a singular value decomposition of the matrix from the forming operation, and determining a set of basis functions to employ to segregate out background signals. Also a corresponding wavelength modulation spectroscopy apparatus, software, and method.

Abstract translation: 一种用于从感兴趣的信号分离背景信号的装置，软件和方法，包括：在一个或多个时间段内对包括背景信号的信号进行采样，从采样结果形成矩阵，经由 来自成形操作的矩阵的奇异值分解，以及确定一组用于分离背景信号的基函数。 还有一种相应的波长调制光谱装置，软件和方法。

公开(公告)号：US5969825A

公开(公告)日：1999-10-19

申请号：US846591

申请日：1997-04-30

Applicant: David S. Bomse ,  Joel A. Silver

Inventor： David S. Bomse ,  Joel A. Silver

IPC: G01J3/433 ,  G01N21/39 ,  G01N21/00

CPC classification number: G01N21/39 ,  G01J3/4338

Abstract: An improvement to a dual-modulation line-locking device for wavelength modulation spectroscopy employing a lowpass filter to generate a nonnormalized error signal and a bandpass filter and RMS-to-DC converter to generate a centering signal. When the error signal is approximately zero and the centering signal is large, the wavelength is coincident with the center of the absorption feature of the sample.

Abstract translation: 利用低通滤波器产生非正常化误差信号的波长调制光谱的双调制线路锁定装置的改进，以及带通滤波器和RMS到DC转换器以产生定心信号。 当误差信号近似为零且定心信号较大时，波长与样品吸收特征的中心一致。

公开(公告)号：US07616316B1

公开(公告)日：2009-11-10

申请号：US11679608

申请日：2007-02-27

Applicant: Joel A. Silver ,  Mark E. Paige ,  David S. Bomse

Inventor： Joel A. Silver ,  Mark E. Paige ,  David S. Bomse

IPC: G01N21/00

CPC classification number: G01N21/39 ,  G01N21/3504

Abstract: An optical spectroscopy apparatus and method for measurement of species concentration, number density, or column density comprising emitting light from a laser light source, receiving light via a fixed length optical path from the source and containing a species to be detected, receiving light via a detector at an end of the path, determining one or more of species concentration, number density, and column density via signal processing electronics connected to the detector, and switching between a plurality of operational modes measuring a same absorption feature of the species depending on measured absorbance.

Abstract translation: 一种用于测量物质浓度，数量密度或柱密度的光谱学装置和方法，包括从激光源发射光，经由固定长度的光路从源接收光并且包含待检测的物质，经由 检测器在路径的末端，通过连接到检测器的信号处理电子器件确定物种浓度，数量密度和列密度中的一个或多个，以及根据所测量的多个测量物质的相同吸收特征的多个操作模式之间的切换 吸光度。

公开(公告)号：US07126685B1

公开(公告)日：2006-10-24

申请号：US10749295

申请日：2003-12-31

Applicant: Mark E. Paige ,  David S. Bomse ,  Joel A. Silver

Inventor： Mark E. Paige ,  David S. Bomse ,  Joel A. Silver

IPC: G01J3/02 ,  G01J3/42

CPC classification number: G01N21/31 ,  G01N21/0303 ,  G01N2021/0367

Abstract: An absorption spectroscopy method comprising providing a sample in a container, rotating the container, while rotating the container, directing a beam of electromagnetic radiation through the container, the beam comprising one or more wavelengths selected from the group consisting of visible wavelengths, infrared wavelengths, and ultraviolet wavelengths, and measuring characteristics of the beam after it passes through the container. Also an absorption spectroscopy apparatus comprising a container holder, a drive rotating the container holder, means for, while rotating the container, directing a beam of electromagnetic radiation through the container, the beam comprising one or more wavelengths selected from visible wavelengths, infrared wavelengths, and ultraviolet wavelengths, and means for receiving the beam after passage through the container.

Abstract translation: 一种吸收光谱方法，包括在容器内提供样品，旋转容器，同时旋转容器，引导电磁辐射束穿过容器，所述束包括选自可见波长，红外波长的一种或多种波长， 和紫外线波长，以及光束在通过容器之后的特性。 还有一种吸收光谱仪器，包括容器保持器，旋转容器保持器的驱动器，用于在旋转容器的同时引导电磁辐射束穿过容器的装置，该束包括从可见波长，红外波长选择的一个或多个波长， 和紫外线波长，以及用于在通过容器之后接收光束的装置。

公开(公告)号：US07092852B1

公开(公告)日：2006-08-15

申请号：US11337663

申请日：2006-01-20

Applicant: Daniel J. Kane ,  David Christian Hovde

Inventor： Daniel J. Kane ,  David Christian Hovde

IPC: G06F19/00

CPC classification number: G01N21/39 ,  G01J3/28 ,  G01J3/433

Abstract: An apparatus, software, and method for segregating out background signals from a signal of interest comprising sampling a signal that includes the background signals over one or more periods of time, forming a matrix from results of the sampling, calculating a matrix of basis functions via a singular value decomposition of the matrix from the forming operation, and determining a set of basis functions to employ to segregate out background signals. Also a corresponding wavelength modulation spectroscopy apparatus, software, and method.

公开(公告)号：US06940599B1

公开(公告)日：2005-09-06

申请号：US10364777

申请日：2003-02-10

Applicant: David Christian Hovde

Inventor： David Christian Hovde

IPC: G01C3/08 ,  G01J3/433 ,  G01J3/453 ,  G01N21/00 ,  G01N21/35 ,  G01N21/39

CPC classification number: G01J3/433 ,  G01J3/453 ,  G01N2021/3595 ,  G01N2021/399

Abstract: A spectrometer and spectrometry method comprising modulating a light source with a carrier waveform multiplied by an envelope function, directing light from the light source through a sample region and to a photodetector, and demodulating current from the photodetector at a reference frequency. Also a method for computing a modulation waveform comprising specifying a target detection efficiency in a Fourier space, computing a response of a waveform that comprises a carrier wave multiplied by an envelope function, and modifying the envelope function using nonlinear optimization means to minimize a difference between the computed response and a predetermined target gain spectrum.

Abstract translation: 一种光谱仪和光谱测定方法，包括用载体波形乘以包络函数调制光源，将来自光源的光引导通过样品区域和光电检测器，以及以参考频率解调来自光电检测器的电流。 还有一种用于计算调制波形的方法，包括在傅里叶空间中指定目标检测效率，计算包括乘以包络函数的载波的波形的响应，以及使用非线性优化装置修改包络函数，以最小化 计算的响应和预定的目标增益谱。

公开(公告)号：US06914917B2

公开(公告)日：2005-07-05

申请号：US10339587

申请日：2003-01-08

Applicant: Jeffrey S. Pilgrim ,  Joel A. Silver

Inventor： Jeffrey S. Pilgrim ,  Joel A. Silver

IPC: H01S3/081 ,  H01S3/1055 ,  H01S5/14 ,  H01S3/10 ,  H01S3/08 ,  H01S5/00

CPC classification number: H01S5/141 ,  H01S3/0812 ,  H01S3/1055 ,  H01S5/143

Abstract: An external cavity laser (and method of generating laser light) comprising: a laser light source; means for collimating light output by the laser light source; a diffraction grating receiving collimated light; a cavity feedback mirror reflecting light received from the diffraction grating back to the diffraction grating; and means for reliably tuning the external cavity laser to discrete wavelengths.

Abstract translation: 外腔激光器（及其产生激光的方法）包括：激光光源; 用于准直由激光光源输出的光的装置; 接收准直光的衍射光栅; 将从所述衍射光栅接收的光反射回所述衍射光栅的腔反馈镜; 以及用于将外腔激光器可靠地调谐到离散波长的装置。

公开(公告)号：US5973782A

公开(公告)日：1999-10-26

申请号：US5356

申请日：1998-01-09

Applicant: David S. Bomse

Inventor： David S. Bomse

IPC: G01B9/02 ,  G01J3/42 ,  G01J3/433

CPC classification number: G01J3/42 ,  G01J3/4338

Abstract: An improvement to wavelength modulation spectroscopy systems operating at frequency .OMEGA. and having a photodetector generating output with frequency components .OMEGA., 2.OMEGA., . . . n.OMEGA., where n is an integer greater than one, the improvement comprising a demodulator operating at frequency .OMEGA.+.delta., where .OMEGA.>>.delta., and additionally recovering signals at n.OMEGA.+n.delta.. The system provides information on multiple detection harmonics simultaneously, no phase adjustment is needed, and the system uses a heterodyne demodulation with its inherent low-noise advantage.

Abstract translation: 对波长调制光谱系统的改进，以OMEGA频率工作，并具有产生具有频率分量OMEGA，2 OMEGA的输出的光电探测器。 。 。 n OMEGA，其中n是大于1的整数，改进包括以OMEGA + delta频率工作的解调器，其中OMEGA >> delta，并且另外在n OMEGA + n delta处恢复信号。 该系统同时提供多个检测谐波的信息，不需要相位调整，系统采用具有固有低噪声优势的外差解调。

公开(公告)号：US4934816A

公开(公告)日：1990-06-19

申请号：US196135

申请日：1988-05-18

Applicant: Joel A. Silver ,  Alan C. Stanton

Inventor： Joel A. Silver ,  Alan C. Stanton

IPC: G01N21/39

CPC classification number: G01J3/4338 ,  G01J3/02 ,  G01J3/0262 ,  G01N21/39 ,  G01N21/031

Abstract: The disclosure relates to an apparatus and method for increasing the sensitivity of laser absorption detection of gas phase atoms and molecular species within a gaseous medium. An active optical element in a laser absorption detection system is translationally (longitudinally) vibrated a selected amplitude along the optical axis and at a desired frequency to eliminate fringes produced by interference fringe producing optical elements. The vibration frequency is preferably asynchronous with other modulation frequencies in the system.

Abstract translation: 本公开涉及一种用于增加气相介质中气相原子和分子种类的激光吸收检测的灵敏度的装置和方法。 激光吸收检测系统中的有源光学元件沿着光轴以期望的频率平移（纵向）振动选定的幅度，以消除由产生干涉条纹的光学元件产生的条纹。 振动频率优选与系统中的其它调制频率是异步的。