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dc.contributor.authorChien_US
dc.contributor.authorSienen_US
dc.contributor.authorLeeen_US
dc.contributor.authorChien-Chungen_US
dc.contributor.authorChiangen_US
dc.contributor.authorPo-Wenen_US
dc.date.accessioned2014-12-16T06:14:39Z-
dc.date.available2014-12-16T06:14:39Z-
dc.date.issued2004-11-16en_US
dc.identifier.govdocG01J005/00zh_TW
dc.identifier.govdocG01K003/00zh_TW
dc.identifier.govdocG01K011/00zh_TW
dc.identifier.urihttp://hdl.handle.net/11536/104839-
dc.description.abstractA method that utilizes a short sampling interval and a long-pulsewidth laser source to obtain the long sensing range and employs a signal processing technique of decomposing Brillouin spectrum to achieve high spatial resolution, high temperature resolution of the distributed temperature measurement is disclosed. The present method includes the steps of measuring the Brillouin spectra of an optical pulse applying to a sensing fiber and a overlapped area thereof, determining the length that the pulse enters according to the measured Brillouin spectra and a weighting factor and then determining a real Brillouin spectrum profile and a temperature distribution according to Brillouin frequency shifts thereof. For a 9500-m sensing range of standard single-mode fiber and a 100-ns pulsewidth laser source, spatial and positon resolutions of 20 cm and a temperature resolution of 1.degree. C. are simultaneously achieved by using this signal processing method.zh_TW
dc.language.isozh_TWen_US
dc.titleMethod of enhancing spatial resolution for distributed temperature measurementzh_TW
dc.typePatentsen_US
dc.citation.patentcountryUSAzh_TW
dc.citation.patentnumber06817759zh_TW
Appears in Collections:Patents


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