Intermediate-frequency error identification of precision optical surface based on the Hilbert spectrum and instantaneous frequency filtering method - Details

author：

Ren, Z. (Ren, Z..) ^[1] | Gao, C. (Gao, C..) ^[2] | Luo, D. (Luo, D..) ^[3] | Gao, B. (Gao, B..) ^[4]

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Abstract：

To　evaluate　the　intermediate-frequency　error　of　a　precision　optical　surface,　a　method　for　more　accurate　separation　and　identification　of　the　intermediate-frequency　error　is　proposed.　This　method　is　based　on　the　Hilbert　spectrum　and　the　instantaneous　frequency　separation　method.　Experimental　results　show　that　the　intermediate-frequency　error　spectrum　can　be　obtained　using　the　method　of　instantaneous　frequency　separation　based　on　the　Hilbert　spectrum.　This　method　separates　only　the　intermediate-frequency　error　component　(0.03　mm-1　≤　f　≤　8.33　mm-1).　Also,　the　method　accurately　identifies　the　nonqualified　component　distribution　(at　sampling　points　200,　840,　and　1000).　Therefore,　this　algorithm　is　a　useful　guide　for　deterministic　processing　of　optical　components.　©　2018　Society　of　Photo-Optical　Instrumentation　Engineers　(SPIE).

Keyword：

Hilbert spectrum; instantaneous frequency; intermediate-frequency error; optical components

Community：

[ 1 ] [Ren, Z.]Fuzhou University, School of Mechanical Engineering and Automation, Fuzhou, China
[ 2 ] [Ren, Z.]Fuzhou University, Tribology Institute, Fuzhou, China
[ 3 ] [Gao, C.]Fuzhou University, School of Mechanical Engineering and Automation, Fuzhou, China
[ 4 ] [Gao, C.]Fuzhou University, Tribology Institute, Fuzhou, China
[ 5 ] [Luo, D.]Fuzhou University, School of Mechanical Engineering and Automation, Fuzhou, China
[ 6 ] [Gao, B.]Fuzhou University, School of Mechanical Engineering and Automation, Fuzhou, China

Reprint 's Address：

[Ren, Z.]Fuzhou University, School of Mechanical Engineering and AutomationChina

Email：

renzyrose@126.com

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Source ：

Optical Engineering

ISSN： 0091-3286

Year： 2018

Issue： 6

Volume： 57

1 . 2 0 9

JCR@2018

1 . 1 0 0

JCR@2023

ESI HC Threshold：170

JCR Journal Grade：3

CAS Journal Grade：4

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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