Fabrication of large-size SiC mirror with precision aspheric profile for artificial satellite

Yuki Shimizu; Shigeaki Goto; Jungchul Lee; So Ito; Wei Gao; Shigeru Adachi; Kyohei Omiya; Hiroki Sato; Tetsuya Hisada; Yoshifumi Saito; Hiroaki Kubota

doi:10.1016/j.precisioneng.2013.01.009

Fabrication of large-size SiC mirror with precision aspheric profile for artificial satellite

Yuki Shimizu, Shigeaki Goto, Jungchul Lee, So Ito, Wei Gao, Shigeru Adachi, Kyohei Omiya, Hiroki Sato, Tetsuya Hisada, Yoshifumi Saito, Hiroaki Kubota

ENG - Finemechanics

Research output: Contribution to journal › Article › peer-review

38 Citations (Scopus)

Abstract

This paper presents an on-machine surface profile measurement system for a large mirror to be used on artificial satellites. The measurement system is constructed by mounting a long-stroke length gauge on a commercial rotary grinder for fabrications of mirror profiles. Mounting the length gauge on slides of the rotary grinder enables evaluations of the mirror profiles, which results would be used to compensate profile errors of the mirrors. In the developed system, both positioning errors and tilt misalignments of the length gauge would induce significant measurement errors. In this study, a quantitative alignment method and a compensation method are therefore developed to reduce the measurement errors related to both the positioning errors and tilt misalignments of the length gauge. In addition, a measurement uncertainty of the developed system has been systematically investigated to confirm its feasibility on the mirror profile measurements. The measured results were finally fed back to the mirror profile fabrication so that the profile error could be reduced to less than 5 μm. Mirror profiles measured on machine before and after compensation machining are also reported.

Original language	English
Pages (from-to)	640-649
Number of pages	10
Journal	Precision Engineering
Volume	37
Issue number	3
DOIs	https://doi.org/10.1016/j.precisioneng.2013.01.009
Publication status	Published - 2013 Jul

Keywords

Alignment
Measurement uncertainty
On-machine measurement
Profile measurement
Rotary grinder
Satellite mirror

ASJC Scopus subject areas

Engineering(all)

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10.1016/j.precisioneng.2013.01.009

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@article{0a21cbe0e6034a53a043ee662df2448e,

title = "Fabrication of large-size SiC mirror with precision aspheric profile for artificial satellite",

abstract = "This paper presents an on-machine surface profile measurement system for a large mirror to be used on artificial satellites. The measurement system is constructed by mounting a long-stroke length gauge on a commercial rotary grinder for fabrications of mirror profiles. Mounting the length gauge on slides of the rotary grinder enables evaluations of the mirror profiles, which results would be used to compensate profile errors of the mirrors. In the developed system, both positioning errors and tilt misalignments of the length gauge would induce significant measurement errors. In this study, a quantitative alignment method and a compensation method are therefore developed to reduce the measurement errors related to both the positioning errors and tilt misalignments of the length gauge. In addition, a measurement uncertainty of the developed system has been systematically investigated to confirm its feasibility on the mirror profile measurements. The measured results were finally fed back to the mirror profile fabrication so that the profile error could be reduced to less than 5 μm. Mirror profiles measured on machine before and after compensation machining are also reported.",

keywords = "Alignment, Measurement uncertainty, On-machine measurement, Profile measurement, Rotary grinder, Satellite mirror",

author = "Yuki Shimizu and Shigeaki Goto and Jungchul Lee and So Ito and Wei Gao and Shigeru Adachi and Kyohei Omiya and Hiroki Sato and Tetsuya Hisada and Yoshifumi Saito and Hiroaki Kubota",

note = "Funding Information: This research was supported by grant-in-aid for supporting industry project 2009 from the Ministry of Economy, Trade and Industry of Japan . The authors would like to thank Dr. Claudiu Giusca (National Physical Laboratory, UK) for valuable comments on uncertainty evaluation, Mr. Hiroshi Muto and Mr. Koji Hosono (Tohoku University) for their contribution on the experiments.",

year = "2013",

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doi = "10.1016/j.precisioneng.2013.01.009",

language = "English",

volume = "37",

pages = "640--649",

journal = "Precision Engineering",

issn = "0141-6359",

publisher = "Elsevier Inc.",

number = "3",

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TY - JOUR

T1 - Fabrication of large-size SiC mirror with precision aspheric profile for artificial satellite

AU - Shimizu, Yuki

AU - Goto, Shigeaki

AU - Lee, Jungchul

AU - Ito, So

AU - Gao, Wei

AU - Adachi, Shigeru

AU - Omiya, Kyohei

AU - Sato, Hiroki

AU - Hisada, Tetsuya

AU - Saito, Yoshifumi

AU - Kubota, Hiroaki

N1 - Funding Information: This research was supported by grant-in-aid for supporting industry project 2009 from the Ministry of Economy, Trade and Industry of Japan . The authors would like to thank Dr. Claudiu Giusca (National Physical Laboratory, UK) for valuable comments on uncertainty evaluation, Mr. Hiroshi Muto and Mr. Koji Hosono (Tohoku University) for their contribution on the experiments.

PY - 2013/7

Y1 - 2013/7

N2 - This paper presents an on-machine surface profile measurement system for a large mirror to be used on artificial satellites. The measurement system is constructed by mounting a long-stroke length gauge on a commercial rotary grinder for fabrications of mirror profiles. Mounting the length gauge on slides of the rotary grinder enables evaluations of the mirror profiles, which results would be used to compensate profile errors of the mirrors. In the developed system, both positioning errors and tilt misalignments of the length gauge would induce significant measurement errors. In this study, a quantitative alignment method and a compensation method are therefore developed to reduce the measurement errors related to both the positioning errors and tilt misalignments of the length gauge. In addition, a measurement uncertainty of the developed system has been systematically investigated to confirm its feasibility on the mirror profile measurements. The measured results were finally fed back to the mirror profile fabrication so that the profile error could be reduced to less than 5 μm. Mirror profiles measured on machine before and after compensation machining are also reported.

AB - This paper presents an on-machine surface profile measurement system for a large mirror to be used on artificial satellites. The measurement system is constructed by mounting a long-stroke length gauge on a commercial rotary grinder for fabrications of mirror profiles. Mounting the length gauge on slides of the rotary grinder enables evaluations of the mirror profiles, which results would be used to compensate profile errors of the mirrors. In the developed system, both positioning errors and tilt misalignments of the length gauge would induce significant measurement errors. In this study, a quantitative alignment method and a compensation method are therefore developed to reduce the measurement errors related to both the positioning errors and tilt misalignments of the length gauge. In addition, a measurement uncertainty of the developed system has been systematically investigated to confirm its feasibility on the mirror profile measurements. The measured results were finally fed back to the mirror profile fabrication so that the profile error could be reduced to less than 5 μm. Mirror profiles measured on machine before and after compensation machining are also reported.

KW - Alignment

KW - Measurement uncertainty

KW - On-machine measurement

KW - Profile measurement

KW - Rotary grinder

KW - Satellite mirror

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Fabrication of large-size SiC mirror with precision aspheric profile for artificial satellite

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