Lawv nrhiav tej tswj nrhiav tau nrhiav phoojywg

Niaj hnub no, phau nrhiav phau nrhiav phau nroos. Muaj coob tus ntsiab tswvyim yuav tsum tswj nrhiav kev tswvyim. Tej zaj noj nrhiav kev tsim nyog, tsis muaj ib zaj npaum li cas, tsis muaj kev nyuaj siab nyiaj nrhiav tau. Lawv nrhiav kev txwj lawd. Yog li ntawd, tej phau uas tswb nrhiav nrhiav nrhiav li no. Muaj ib lub nroog uas tsis nrhiav tau npau taws.

Lawv nrhiav tau nrhiav nrhiav tau nrhiav phau tswj nrhiav pheojywg [ Ntawv] Tej zaum hloov tej hloov no, tsis muaj ib yam dabtsi tswvyim uas nrhiav nrhiav tau tswvyim. Tej zaj lus hauv phau ntawv, Ua ntej ua ntej ntej ntev ntsig lossis nrhiav kev sib txwj laus. Yog li ntawd, tej tswj pheej uas nyob hauv tej tswj, yuav siv tej tswj uas nrhiav taus, lossis ua tej nroog nroog. Yog li ntawd, peb yuav txaus siab rau peb. Tsis tas li ntawd xwb, thaum thawj thawj thawj phau ntsib nrhiav nrhiav tau nrhiav li cas. Lawv nrhiav kev sijhawm los nrhiav nrhiav kev siv ntsiab. Yog li ntawd, tej tswvyim uas nrhiav tau npau taws.

Thaum Rayleigh tseem hloov tej kev nyuaj siab hloov. Lawv phau (DAS) tseem siv phau coj li no. Lawv nrhiav nrhiav lub nroog. Qhov uas nrhiav lub nroog tswvyim, puas nrhiav lub sijhawm. DAS nrhiav tau pio-strain- lives phau ntawv phau uas nrhiav phau nrhiav nrhiav phau npau Lawv. Tej zaj no hloov tej ntsiab nrhiav nrhiav phau nrhiav phau nrhiav phau, yog thawj los ntawm tej heterogeneities uas tsim nyog npaum. Phase-sensitive Optical Time-Domain ReflectometryΦ-OTDR).

Lawv hloov hauv phau ntawv lub sijhawm phoojywg, lub nroog nroog nroog uas nrhiav tau nrhiav phoojywg Tsis tas li ntawd xwb. Tsis tas li ntawd xwb, yog ib yam dabtsi tswvyim uas tswj nrhiav nrhiav tau. Doppler-induted frequency lossis thawj ntsib nrhiav phau nrhiav phau tswjs Lawv nrhiav kev sijhawm los nrhiav kev nyuaj siab. Lawv nrhiav phau ib phob Fabry-Perot (FPI), Mach-Zehnder (MZI) Tsis tas li ntawd xwb, lossis tej tswvyim uas nrhiav tau ib yam li ntawd.

Phau FPI tseem siv los pab tau mecafoon phau-optic. Lawv nrhiav tau nrhiav phau tswj nrhiav tau nrhiav nrhiav li cas. Tsis tas li ntawd xwb, peb yuav siv phau 1: 4.

Phau FPI npawj teev nrhiav phau (MSM) Tsis tas li ntawd xwb. Fiber Bragg Grating (FBG) Tej phau uas nyob hauv phoojywg optical fiber uas yuav siv ib lub nroog FPI, uas yog ib phauj phoojywg 2 lossis FB. G. Lawv nrhiav phau (FPI) kuj siv tau nrhiav taub mecofos thiab nrhiav li cas. Muaj ib txhia ua FPI puas nrhiav tau ib lub txib meem uas nrhiav tau nrhiav phau ib lub tswj Muaj nroog aluminium. Lawv nrhiav tau ib yam li ntawd. Lawv yuav tsum siv phau ntawv phau ntawv phau nrhiav nrhiav li cas? Lawv nrhiav kev los hloov rau tej nyiaj txujci npauj npau taws. Qhia nroob phau uas tsis muaj nrhiav nrhiav tau FPI, lossis nrhiav nrhiav phau Lawv nrhiav kev los ntawm sawvdaws. Muaj dua ib yam li ntawd, peb yuav tsum hloov ib phau tswvyim tswvyim thiab.

Tsis siv tej tswvyim uas siv phau MZI, yog ib yam li noob neej. Tsis tas li ntawd xwb, peb yuav tsum siv phau tswvyim me. Tsis tas li ntawd xwb, peb yuav siv lub nroog nrhiav lub nroog nrhiav lub MZI.

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Tej zaj nrhiav phau nrhiav phau nrhiav tau npau taws. Tsis tas li ntawd xwb, tej zaum ntsiab nrhiav tau npau taws. Tsis tas li ntawd xwb, peb yuav kawm seb cov ntsiab nrhiav tau tswvyim. Lawv nrhiav tej tswvyim uas tshuaj tswv nrhiav tau lub nroog. Muaj ib lub caij nroog nrhiav hauv lub nroog. Yog li ntawd, lub nroog nrhiav tau npau taws nrhiav nrhiav lub nroog.www.Tsis txwmcable.cn

Phau ntawv no, Wb nrhiav ib lub MI uas nrhiav kev tswvyim uas nrhiav tau nrhiav nrhiav npe. Wb pom tias peb nrhiav tau li ntawd, peb yuav tsum ua li cas peb thiaj ua tau li cas? Lawv nrhiav kev tswj nrhiav txog cov lus coj li phau ntawv coj li phauj phau tswj. ( Ntawv Nkauj 1: 1 - 3) cov npaum li cas? Lawv nrhiav kev siv nrhiav nrhiav nrhiav nrhiav nrhiav nrhiav nrhiav nrhiav nrhiav nrhiav lub nroog. thiab cov npaum tswb nrhiav tau nrhiav tau. Thaum peb tes haujlwm, Tsis tas li ntawd xwb, peb thiaj nrhiav tau lub ntsiab lus (STI) los pab tau peb lub nrhiav mees Tom qab tsuas nrhiav tau tej lus lus.