DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yim, NB | ko |
dc.contributor.author | Eom, CI | ko |
dc.contributor.author | Kim, Seung-Woo | ko |
dc.date.accessioned | 2013-03-03T03:54:54Z | - |
dc.date.available | 2013-03-03T03:54:54Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2000-08 | - |
dc.identifier.citation | MEASUREMENT SCIENCE TECHNOLOGY, v.11, no.8, pp.1131 - 1137 | - |
dc.identifier.issn | 0957-0233 | - |
dc.identifier.uri | http://hdl.handle.net/10203/77099 | - |
dc.description.abstract | We present a new digital phase measuring scheme for optical heterodyne interferometry, which provides high measurable velocity up to 6 m s(-1) with a fine displacement resolution of 0.1 nm. The main idea is combining two distinctive digital phase measuring techniques with mutually complementary characteristics; one is counting the Doppler shift frequency with a 20 MHz beat frequency for high velocity measurement and the other is synchronous phase demodulation with a 2.0 kHz beat frequency for extremely fine displacement resolution. The two techniques are operated in switching mode in accordance with the object speed in a synchronized way. Experimental results prove that the proposed dual mode phase measuring scheme is realized with a set of relatively simple electronic circuits for beat frequency shifting, heterodyne phase detection and low-pass filtering. | - |
dc.language | English | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.subject | LASER | - |
dc.title | Dual mode phase measurement for optical heterodyne interferometry | - |
dc.type | Article | - |
dc.identifier.wosid | 000089044900008 | - |
dc.identifier.scopusid | 2-s2.0-0034248068 | - |
dc.type.rims | ART | - |
dc.citation.volume | 11 | - |
dc.citation.issue | 8 | - |
dc.citation.beginningpage | 1131 | - |
dc.citation.endingpage | 1137 | - |
dc.citation.publicationname | MEASUREMENT SCIENCE TECHNOLOGY | - |
dc.contributor.localauthor | Kim, Seung-Woo | - |
dc.contributor.nonIdAuthor | Yim, NB | - |
dc.contributor.nonIdAuthor | Eom, CI | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | optical heterodyne interferometry | - |
dc.subject.keywordAuthor | dual mode phase measurement | - |
dc.subject.keywordAuthor | displacement measurement | - |
dc.subject.keywordAuthor | beat frequency shifting | - |
dc.subject.keywordAuthor | Doppler shift | - |
dc.subject.keywordPlus | LASER | - |
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