中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

995 records (took 0.021 seconds)

    MANUAL AND AUTOMATIC PROBE CALIBRATION
    172.
    发明申请
    MANUAL AND AUTOMATIC PROBE CALIBRATION 有权
    手动和自动探头校准

    公开(公告)号：US20010020123A1

    公开(公告)日：2001-09-06

    申请号：US09451151

    申请日：1999-11-30

    Inventor： MOHAMED KHEIR DIAB ,  ESMAIEL KIANI-AZARBAYJANY ,  CHARLES ROBERT RAGSDALE ,  JAMES M. LEPPER JR.

    IPC: A61B005/00

    CPC classification number: A61B5/1495 ,  A61B5/0205 ,  A61B5/02427 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/6838 ,  A61B2562/08 ,  G01J3/02 ,  G01J3/0254 ,  G01J3/027 ,  G01J3/0275 ,  G01J3/0291 ,  G01J3/10 ,  G01J2003/2866 ,  G01N21/255 ,  G01N21/274 ,  G01N21/31 ,  G01N21/3151 ,  G01N21/39 ,  G01N2021/3144 ,  G01N2201/0627

    Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe, such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light emitting element such as a light emitting diode.

    Abstract translation: 本发明的方法和装置提供了一种系统，其中可以通过选择它们的工作驱动电流来在给定范围内调节发光二极管（LED），以获得精确的波长。 本发明还提供了校准和利用LED探针的方式，使得驱动电流已知变化的波长偏移是已知量。 通常，利用LED的电流驱动变化的波长偏移原理，以便在使用LED传感器时更好地进行校准和增加灵活性，特别是在需要精确波长以获得准确测量的应用中。 本发明还提供一种系统，其中不需要知道过去需要精确波长的LED的精确波长。 最后，本发明提供了一种用于确定诸如发光二极管的发光元件的工作波长的方法和装置。

    Method for adjusting spectral measurements to produce a standard Raman spectrum
    173.
    发明授权
    Method for adjusting spectral measurements to produce a standard Raman spectrum 有权
    用于调节光谱测量以产生标准拉曼光谱的方法

    公开(公告)号：US06281971B1

    公开(公告)日：2001-08-28

    申请号：US09658708

    申请日：2000-09-08

    Applicant: Fritz Schreyer Allen ,  Jun Zhao

    Inventor： Fritz Schreyer Allen ,  Jun Zhao

    IPC: G01J344

    CPC classification number: G01J3/4412 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/027 ,  G01J3/0297 ,  G01J3/10 ,  G01J3/28 ,  G01J3/44 ,  G01J2003/2866 ,  G01N21/65

    Abstract: A method for producing a standard Raman spectrum of a sample. A source of incident radiation is provided. Means provide an incident beam and a monitor beam from the incident radiation. The incident beam is directed to the sample and a Raman beam is generated from the sample. Spectral data may be collected directly from the monitor beam and the Raman beam simultaneously. The occurrence of a frequency shift in the incident radiation is determined. One spectral measurement is made after the occurrence of the frequency shift, or a first spectral measurement is made before and a second spectral measurement is made after the frequency shift. One or more arithmetic calculations are applied to the single spectral measurement, or the second spectral measurement is subtracted from the first spectral measurement. One or more integral transforms are applied to the resulting spectral measurement data to produce the standard Raman spectrum.

    Abstract translation: 用于制备样品的标准拉曼光谱的方法。 提供入射辐射源。 装置提供来自入射辐射的入射光束和监视光束。 入射光束被引导到样品，并从样品产生拉曼光束。 光谱数据可以直接从监视光束和拉曼光束同时收集。 确定入射辐射中频移的发生。 在发生频移之后进行一次频谱测量，或者进行第一频谱测量，并且在频移之后进行第二频谱测量。 将一个或多个算术计算应用于单个光谱测量，或者从第一光谱测量中减去第二光谱测量。 将一个或多个积分变换应用于所得到的光谱测量数据以产生标准拉曼光谱。

    Programmable spectrophotometer using a data memory for storing a sequence of generalized commands
    174.
    发明授权
    Programmable spectrophotometer using a data memory for storing a sequence of generalized commands 失效
    可编程分光光度计使用数据存储器存储一系列广义命令

    公开(公告)号：US5400138A

    公开(公告)日：1995-03-21

    申请号：US979196

    申请日：1992-11-20

    Applicant: Steven H. Peterson ,  Ross Ouwinga ,  James L. Overbeck

    Inventor： Steven H. Peterson ,  Ross Ouwinga ,  James L. Overbeck

    IPC: G01J3/02 ,  G01J3/28 ,  G01J3/50

    CPC classification number: G01J3/50 ,  G01J3/02 ,  G01J3/0251 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0272 ,  G01J2003/283

    Abstract: A color measuring system includes a portable spectrophotometer connectable to a general-purpose computer. The portable unit includes a microprocessor with a read-only program memory storing machine executable instructions to implement data processing for color measurement purposes and input/output functions including key reading and data transfer functions and display functions. A random-access data memory is used to temporarily store process data for later transfer to the general-purpose computer. An editor program and a compiler program in the general-purpose computer may be used to generate a program for the microprocessor using high-level, generalized commands. After such a program has been written and compiled in the general-purpose computer, it is transferred to a command buffer area in the random-access data memory of the microprocessor. The microprocessor, in its program memory, includes a command interpreter including a predefined sequence of machine executable instructions for each generalized command. When executed, the command interpreter reads a generalized command from the data memory and, if necessary, updates relevant data pointers and executes the predefined sequence of machine executable functions in the program memory corresponding to the generalized command being processed. A user, using the general-purpose computer, may specify any desired sequence of measurement operations by specifying functions to be performed by the microprocessor, including the display of prompts to the operator of the portable spectrophotometer to instruct the operator to perform various specified operations.

    Abstract translation: 色彩测量系统包括可连接到通用计算机的便携式分光光度计。 便携式单元包括具有只读程序存储器的微处理器，其存储机器可执行指令以实现用于颜色测量目的的数据处理和包括键读取和数据传送功能以及显示功能的输入/输出功能。 随机访问数据存储器用于临时存储过程数据以供稍后传送到通用计算机。 可以使用通用计算机中的编辑器程序和编译器程序来生成使用高级通用命令的微处理器的程序。 在通用计算机中写入并编译了这样的程序之后，将其传送到微处理器的随机存取数据存储器中的命令缓冲区。 微处理器在其程序存储器中包括命令解释器，其包括用于每个广义命令的预定义的机器可执行指令序列。 当执行时，命令解释器从数据存储器读取通用命令，并且如果需要，更新相关的数据指针，并在对应于所处理的广义命令的程序存储器中执行机器可执行功能的预定义序列。 使用通用计算机的用户可以通过指定要由微处理器执行的功能来指定任何期望的测量操作顺序，包括向便携式分光光度计的操作者显示提示以指示操作者执行各种指定的操作。

    Fourier spectrophotometer with polarization multiplexing optical system
    178.
    发明授权
    Fourier spectrophotometer with polarization multiplexing optical system 有权

    公开(公告)号：US11927483B2

    公开(公告)日：2024-03-12

    申请号：US17771517

    申请日：2020-10-27

    Applicant: Yokogawa Electric Corporation

    Inventor： Yasuyuki Suzuki ,  Yukihiro Nakamura ,  Tetsushi Namatame

    IPC: G01J3/453 ,  G01J3/02 ,  G01N21/27 ,  G01N21/45

    CPC classification number: G01J3/453 ,  G01J3/0208 ,  G01J3/027 ,  G01N21/274 ,  G01N21/45 ,  G01N2021/458

    Abstract: A Fourier spectrophotometer includes: a light source; an interferometer configured to obtain first and second interferograms whose intensity distributions are inverted from each other from the light emitted from light source; a multiplexing optical system configured to multiplex the first and second interferograms to irradiate the sample with a resultant interferogram; a demultiplexing optical system configured to demultiplex the first and second interferograms contained in the light passing through the sample; a light receiver configured to output a first light reception signal obtained by receiving the demultiplexed first interferogram and a second light reception signal obtained by receiving the demultiplexed second interferogram; and a signal processing device configured to perform processing for obtaining a noise-removed spectrum of the wavelength component in the analysis wavelength band by using the first and second light reception signals.

    Accurate raman spectroscopy
    180.
    发明授权
    Accurate raman spectroscopy 有权

    公开(公告)号：US11860104B2

    公开(公告)日：2024-01-02

    申请号：US17816713

    申请日：2022-08-01

    Applicant: NOVA LTD.

    Inventor： Eyal Hollander ,  Gilad Barak ,  Elad Schleifer ,  Yonatan Oren ,  Amir Shayari

    IPC: G01J3/44 ,  G01N21/65 ,  G01J3/02

    CPC classification number: G01N21/65 ,  G01J3/0205 ,  G01J3/027 ,  G01J3/4412 ,  G01N2201/0636 ,  G01N2201/06113

    Abstract: A method, a system, and a non-transitory computer readable medium for Raman spectroscopy. The method may include determining first acquisition parameters of a Raman spectroscope to provide a first acquisition set-up, the determining is based on at least one expected radiation pattern to be detected by a sensor of the Raman spectroscope as a result of an illumination of a first area of a sample, the first area comprises a first nano-scale structure, wherein at least a part of the at least one expected radiation pattern is indicative of at least one property of interest of the first nano-scale structure of the sample; wherein the first acquisition parameters belong to a group of acquisition parameters; setting the Raman spectroscope according to the first acquisition set-up; and acquiring at least one first Raman spectrum of the first nano-scale structure of the sample, while being set according to the first acquisition set-up.

Patent Agency Ranking