公开(公告)号：US4798464A

公开(公告)日：1989-01-17

申请号：US838858

申请日：1986-03-12

Applicant: Roy E. Boostrom

Inventor： Roy E. Boostrom

IPC: G01J3/10 ,  G01J3/28 ,  G01J3/08 ,  G01J3/36

CPC classification number: G01J3/10 ,  G01J3/28 ,  G01J2003/2866 ,  G01J3/2803

Abstract: The advantage of sustained wavelength accuracy and mechanical simplicity of a spectrophotometer using a photodiode array as photometric detector and a fixed diffraction grating as dispersion means may be limited to a relatively short wavelength range by problems of stray light, second order errors and overloading of the detector at portions of the wavelength range. By utilizing repeat scanning of the array, each scan being modified by using a different source lamp and correction filters, freedom from the cited problems over part of each scanned wavelength range can be effected. A computer controls the scan sequence and combines the usable portion of each scan to produce error free operation over an extended range.

Abstract translation: 使用光电二极管阵列作为光度检测器和固定衍射光栅作为分散装置的分光光度计的持续波长精度和机械简单性的优点可以通过杂散光，二阶误差和检测器的过载问题被限制在相对较短的波长范围内 在波长范围的部分。 通过利用阵列的重复扫描，可以实现通过使用不同的源灯和校正滤波器来修改每个扫描，从而避免了每个扫描波长范围的一部分上引用的问题。 计算机控制扫描序列，并组合每次扫描的可用部分，以在扩展范围内产生无错误的操作。

公开(公告)号：US4692883A

公开(公告)日：1987-09-08

申请号：US704356

申请日：1985-02-21

Applicant: Michael R. Nelson ,  Roy E. Boostrom ,  Jerry E. Cahill ,  Tzong Hwang

Inventor： Michael R. Nelson ,  Roy E. Boostrom ,  Jerry E. Cahill ,  Tzong Hwang

IPC: G01J3/10 ,  G01J3/28 ,  G01C25/00 ,  G06F15/46

CPC classification number: G01J3/28 ,  G01J3/10 ,  G01J2003/2866 ,  G01J3/2803

Abstract: This invention is directed to a digital wavelength calibration system for a spectrophotometer, which includes a photodiode array that forms an output detector for the spectrophotometer, a light source for generating at least one reference emission line of known peak wavelength, a computer controlled mechanism for causing the peak of said reference line to fall in close proximity to the center of a preselected pixel of said photodiode array, peak location computing apparatus for computing the exact position data of the peak relative to the pixel center in terms of the pixel spacing and the ordinal number of the preselected pixel and for retaining this position data for subsequent wavelength computation, wavelength identification computing apparatus for computing the numerical relationship data of the ordinate number of each pixel to the wavelength falling on that pixel and for retaining this relationship data for subsequent correlation with data generated by the pixel, and apparatus for computational processing and display of the data correlated with the associated wavelength value.

Abstract translation: 本发明涉及一种用于分光光度计的数字波长校准系统，其包括形成用于分光光度计的输出检测器的光电二极管阵列，用于产生已知峰值波长的至少一个参考发射线的光源，用于引起 所述参考线的峰值落在靠近所述光电二极管阵列的预选像素的中心的峰值位置计算装置，用于根据像素间隔计算峰相对于像素中心的精确位置数据， 预定像素的数量和用于保留用于后续波长计算的位置数据的波长识别计算装置，用于计算每个像素的纵坐标数量与落入该像素的波长的数值关系数据，并保留该关系数据以便随后与之相关 由像素生成的数据，以及用于的像素的装置 与相关波长值相关的数据的计算处理和显示。