公开(公告)号：US5184193A

公开(公告)日：1993-02-02

申请号：US293218

申请日：1989-01-04

Applicant: David A. LeFebre

Inventor： David A. LeFebre

IPC: G01J1/18 ,  G01J3/06 ,  G01J3/08 ,  G01J3/42

CPC classification number: G01J3/08 ,  G01J2001/182 ,  G01J2003/068 ,  G01J3/42 ,  G01N2201/04 ,  G01N2201/0833

Abstract: Spectrophotometric apparatus and methodology suitable for continuous and long-term use. The apparatus includes a monochromator providing pre-dispersed monochromatic light to the optical inputs of a pair of fiber optic cables and a translator for alternatively positioning the fiber optic cables at the same location with respect to the monochromator output. One of the cables conducts light to a sample under study while the other cable provides a reference for light intensity measurements. The methodology includes the steps of performing two scans through the monochromator output for each measurement on the sample. The fiber optic cables are moved between scans so that the cable employed in the latter scan occupies the former position of the cable employed in prior scan.

Abstract translation: 分光光度仪和方法适用于连续和长期使用。 该装置包括单色仪，其将预分散的单色光提供给一对光纤电缆的光输入端，以及用于相对于单色仪输出将光纤缆线替代地定位在相同位置处的转换器。 其中一根电缆对正在研究的样品进行光照，而另一根电缆为光强测量提供参考。 该方法包括通过单色仪输出进行两次扫描以对样本进行每次测量的步骤。 光纤电缆在扫描之间移动，使得在后一扫描中使用的电缆占据先前扫描中使用的电缆的前一位置。

公开(公告)号：US20050264808A1

公开(公告)日：2005-12-01

申请号：US10967075

申请日：2004-10-15

Applicant: Xiaomei Wang

Inventor： Xiaomei Wang

IPC: G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01J3/44 ,  G01N21/39 ,  G01N21/65

CPC classification number: G01J3/18 ,  G01J3/0256 ,  G01J3/1256 ,  G01J3/26 ,  G01J3/44 ,  G01J2003/068 ,  G01J2003/1247 ,  G01N21/39 ,  G01N21/65

Abstract: A spectrometer that provides the ability to combine the advantages of high resolution, compactness, ruggedness, and low-power consumption of Fabry-Perot (FP) tunable filter spectrometer, with the multi-channel multiplexing advantage of FT and/or grating/detector array. The key concept is to design and operate a tunable FP filter in a multiple-order condition. This filter is then followed by a “low-resolution” fixed grating, which disperses the filtered n-order signal into a preferably matched N-element detector array for parallel detection. The spectral resolution in this system is determined by the FP filter, which can be designed to have very high resolution. The N-order parallel detection scheme reduces the total integration or scan time by a factor of N to achieve the same signal to noise ratio (SNR) at the same resolution as the single channel tunable filter method. This design is also very flexible, allowing spectrometer systems with appropriate order N to thereby optimize the system performance for spectral resolution and scan integration time. In addition to the significant reduction in scan integration time, there are two other advantages to this approach. The first, because the FP tunable filter is designed and operated under n-orders, the fabrication tolerances of the FP filter cavity and operating conditions are significantly loosened.

Abstract translation: 光谱仪提供了结合Fabry-Perot（FP）可调谐滤光片的高分辨率，紧凑性，坚固性和低功耗优点的能力，以及FT和/或光栅/检测器阵列的多通道复用优势 。 关键概念是设计和操作多阶可调FP滤波器。 该滤波器之后是“低分辨率”固定光栅，其将滤波后的n阶信号分散到优选匹配的N元件检测器阵列中用于并行检测。 该系统中的光谱分辨率由FP滤光片确定，可以设计成具有非常高的分辨率。 N级并行检测方案将总积分或扫描时间减少N倍，以与单通道可调滤波器方法相同的分辨率实现相同的信噪比（SNR）。 该设计也非常灵活，允许光谱仪系统具有适当的次序N，从而优化系统性能，以实现光谱分辨率和扫描积分时间。 除了显着降低扫描积分时间之外，还有另外两个优点。 首先，由于FP可调谐滤波器是按n阶设计和操作的，FP滤波器腔的制造公差和工作条件明显松动。

公开(公告)号：US20240011833A1

公开(公告)日：2024-01-11

申请号：US18343129

申请日：2023-06-28

Applicant: HITACHI HIGH-TECH SCIENCE CORPORATION

Inventor： Akihiro Nojima ,  Yusuke Kaga ,  Takuya Kambayashi ,  Jun Horigome ,  Kai Maruyama

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/06

CPC classification number: G01J3/4406 ,  G01J3/027 ,  G01J3/06 ,  G01J3/0264 ,  G01J2003/064 ,  G01J2003/068 ,  G01J2003/2836

Abstract: A spectroscopic analysis system includes: an operation panel configured to receive an input of at least one of an upper limit value of a measurement period of a spectroscopic analysis spectrum or a lower limit value of measurement accuracy as a user setting condition related to measurement of the spectroscopic analysis spectrum of a sample; and a control unit configured to derive a predetermined recommended measurement condition that satisfies the user setting condition and cause a display unit to display the recommended measurement condition, in which the recommended measurement condition is at least one of a wavelength range of light to be used for measurement of the spectroscopic analysis spectrum, a sampling interval of a wavelength of the light, a slit width of a diffraction grating of a spectroscope that disperses the light, or a sweep speed of the wavelength of the light.

公开(公告)号：US4971439A

公开(公告)日：1990-11-20

申请号：US302061

申请日：1989-01-18

Applicant: James R. Brown

Inventor： James R. Brown

IPC: G01J3/06 ,  G01J3/12 ,  G01J3/28

CPC classification number: G01J3/06 ,  G01J2003/063 ,  G01J2003/066 ,  G01J2003/068 ,  G01J2003/1273 ,  G01J2003/2866

Abstract: A calibration method and apparatus for economical and rapid calibration of a scientific instrument utilizing a monochromator to generate monochromatic light utilizing controllable means for determining the angular position of a light dispersing element in the monochromator and a filter having a narrow absorption band(s) to determine a relationship between the wavelength of the monochromatic light generated by the monochromator and an angular position of the dispersing element so that the dispersing element can be rotated to an exact position for the monochromator to generate a selected wavelength of monochromatic light.

Abstract translation: 一种用于经济和快速校准科学仪器的校准方法和装置，利用单色仪产生单色光，利用可控装置来确定单色仪中的光分散元件的角位置和具有窄吸收带的滤光片，以确定 由单色仪产生的单色光的波长与分散元件的角度位置之间的关系，使得分散元件可以旋转到用于单色仪的精确位置以产生所选择的单色光的波长。

公开(公告)号：US4866644A

公开(公告)日：1989-09-12

申请号：US901875

申请日：1986-08-29

Applicant: John S. Shenk ,  Mark O. Westerhaus

Inventor： John S. Shenk ,  Mark O. Westerhaus

IPC: G01J3/06 ,  G01J3/12 ,  G01J3/28 ,  G01N21/27 ,  G01N21/31

CPC classification number: G01J3/28 ,  G01N21/274 ,  G01J2003/068 ,  G01J2003/1243 ,  G01J2003/2866 ,  G01N2021/3129 ,  G01N2201/12753

Abstract: In a calibration system for optical instruments of the type which make measurements at incrementally spaced wavelengths throughout a spectrum, a plurality of standard samples are measured by a master instrument and a field instrument. The measurement data obtained from each instrument are then statistically correlated to determine a calibration file which is stored with the field instrument. The calibration file includes identification on the field instrument of index locations at which the field instrument will respond to the same wavelength as corresponding index points on the master and includes correction coefficients for each of the index locations. The calibration file is stored in a computer connected to the field instrument and the computer is provided with a program to correct the measurements made by the field instrument in accordance with the stored calibration file.

Abstract translation: 在用于在整个光谱中以逐渐间隔的波长进行测量的光学仪器的校准系统中，通过主仪器和现场仪器来测量多个标准样品。 然后将从每个仪器获得的测量数据统计相关，以确定与现场仪器一起存储的校准文件。 校准文件包括现场仪器上的现场仪器上的识别，其中现场仪器将响应于与主机上的对应索引点相同的波长，并且包括每个索引位置的校正系数。 校准文件存储在连接到现场仪器的计算机中，并且计算机被提供有程序以根据存储的校准文件来校正由现场仪器进行的测量。