Method for measuring light-beam central position by array CCD
Title：
Method for measuring light-beam central position by array CCD
Application Number：
 200510012066
Application Date：
 2005/07/01
Announcement Date：
 2005/12/21
Pub. Date：
 2007/08/22
Publication Number：
 1710378
Announcement Number：
 1333231
Grant Date：
 2007-8-22
Granted Pub. Date：
 2007-8-22
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G01B 11/02, G01B 11/26
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Zhu Henian
Key Words：
 array CCD, measure, light-beam, central position
Abstract：
 A method of using linear array CCD to measure central position of light beam includes presenting radiation power density of CCD surface light spot in Gaussian or quasi-Gaussian distribution , setting error limit and selecting end-off threshold of digital signal output by CCD and relative circuits , applying weighted- regression method to calculate out estimation value of central position for effective digital signal of end-off quasi-Gaussian distribution and using Monte Carlo figure to simulate error distribution for setting out width range of light beam .
Claim：
Priority：
PCT：
LegalStatus：

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