Gyroscope yodziwika bwino ya fiber optic imatha kumva kuzungulira kwa nthaka mozungulira phiri lophulika lomwe likugwira ntchito

Ofufuza apanga prototype fiber optic gyroscope kuti azitha kuyang'anira nthawi yeniyeni kuzungulira kwa nthaka komwe kumachitika chifukwa cha zivomerezi m'dera la volcanic la Campi Flegnere ku Naples, Italy. Kumvetsetsa bwino za zivomerezi m'derali lomwe lili ndi anthu ambiri kungathandize kuwunika zoopsa komanso kungathandize kuchenjeza anthu msanga. Chivomerezi chikachitika, pamwamba pa Dziko lapansi pamakhala mayendedwe olunjika komanso ozungulira, anatero Salvio Avino (Saverio Avino), mtsogoleri wa gulu lofufuza ku Italian National Institute for Research in Earth Sciences (CNR-INO). "Ngakhale kuti kuzungulira nthawi zambiri kumakhala kochepa ndipo nthawi zambiri sikungatheke kuzindikirika, kuthekera kojambula kudzatithandiza kumvetsetsa bwino momwe dziko lapansi lilili komanso magwero a zivomerezi."

Mu magazini ya Applied Optics, ofufuza amanena kuti apeza kale sensa yozungulira pogwiritsa ntchito gyroscope ya fiber optic ya makilomita awiri yotchedwa BSD-98. Sensayi inagwira ntchito yojambula deta mosalekeza kwa miyezi isanu, kuzindikira phokoso ndi kuzungulira kwa nthaka kuchokera ku zivomezi zazing'ono mpaka zazing'ono.

Dera la mzinda wa Naples, lomwe lili ndi anthu pafupifupi 3 miliyoni, lili ndi mapiri atatu ophulika omwe akugwira ntchito. Dera lonselo lili ndi netiweki ya masensa ambiri yomwe imayang'anira nthawi yeniyeni magawo osiyanasiyana a thupi ndi mankhwala omwe amagwiritsidwa ntchito pophunzira za zivomerezi ndi zochitika za mapiri.

"Kuyeza kuzungulira kwa dziko lapansi kudzawonjezera chidutswa china ku chithunzi chovuta ichi cha sensor," adatero Danilo Garzou (Danilo Galuzzo), membala wa gulu lofufuza ku National Institute of Geophysics and Volcanology (INGV).

"Zambirizi zithandizanso kumvetsetsa bwino zizindikiro za chivomerezi cha mapiri, zomwe ndizofunikira kwambiri pozindikira kusintha kulikonse kwa mphamvu ya mapiri."

Gyroscope ya fiber optic inagwira zivomerezi zazing'ono ndi zapakati, kuphatikizapo gulu la anthu, m'chigawo cha volcano cha Campifogliere ku Naples, Italy. Chithunzi chochokera: Saverio Avino, CNR-INO

Yesani kayendedwe kozungulira

Gyroscope ndi chipangizo chomwe chimagwiritsidwa ntchito kuzindikira ndi kuyeza kusintha kwa njira kapena liwiro la angular (liwiro lomwe chinthu chimazungulira). Mwachitsanzo, mu mafoni a m'manja, gyroscope yosavuta imatha kuzindikira ndi kuyeza momwe chipangizocho chimayendera komanso momwe chimazungulira. Kuti ayesere kuzungulira kwa mafunde a seismic omwe amapangidwa ndi zivomerezi kapena zochitika za volcano, ofufuza apanga gyroscope yovuta kwambiri kutengera zotsatira za Sagnac.

Gyroscope ya fiber optic ndi sensa yozindikira liwiro la angular yomwe imagwira ntchito pa Sagnac effect: mu interferometer ya mphete, mafunde owala ochokera ku gwero amagawidwa m'magawo awiri ndi beam splitter. Ma beam awiriwa amayenda mbali zosiyana—mozungulira wotchi ndi mozungulira wotchi—ndipo amabwerera ku beam splitter. Pamene interferometer izungulira pa liwiro linalake la angular poyerekeza ndi chimango choyimira inertial, pali kusiyana kwa gawo pakati pa beams mozungulira wotchi ndi mozungulira wotchi:

Njira yoyezera ya inertial fiber ya optical fiber imagwiritsa ntchito BSD series closed-loop optical fiber gyro ngati gawo loyezera, lomwe lili ndi mawonekedwe olondola kwambiri, kudalirika kwambiri, moyo wonse, mulingo wapamwamba, komanso kukana mwamphamvu kugwedezeka ndi kugwedezeka. Imatha kupereka malo olondola komanso ntchito yoyendera kwa chonyamuliracho pamalo okana kwathunthu (popanda satellite).

"Labu yathu ili pakatikati pa malo ochitira zivomezi, kotero ndi gwero lachilengedwe la zivomezi," adatero Avino. "Popeza timakumana ndi zivomezi zazing'ono mpaka zapakati pafupifupi tsiku lililonse, titha kuyeza ndikupeza deta yambiri yozungulira nthaka, yomwe ikhoza kufufuzidwa mosalekeza kuti iphunzire za zivomezi ndi mapiri m'chigawo cha Campi Flegrei.