Mfundo ndi magulu a chifunga

Mfundo ndi magulu a chifunga

(1) mfundo

Mfundo ya chifunga imatchedwa Sagnac effect mu fizikisi. Mu njira yowunikira yotsekedwa, kuwala kuwiri kochokera ku gwero lomwelo kudzasokonezedwa kukalumikizidwa ku malo omwewo ozindikira. Ngati njira yowunikira yotsekedwa ili ndi kuzungulira poyerekeza ndi malo osazungulira, kuwala komwe kumafalikira mbali zabwino ndi zoyipa kudzapanga kusiyana kwa njira yowunikira, komwe kumagwirizana ndi liwiro la ngodya yozungulira yapamwamba. Kuthamanga kwa ngodya yozungulira kumawerengedwa pogwiritsa ntchito kusiyana kwa gawo komwe kumayesedwa ndi chowunikira cha photoelectric.

Kuchokera pa fomula, kutalika kwa ulusi kumakhala kwakukulu, ndipo kutalika kwa ulusi woyenda ndi kuwala kumakhala kochepa, ndipo kutalika kwa mafunde a kuwala kumakhala kochepa. Kuchuluka kwa kusokoneza kumakhala koonekera kwambiri. Chifukwa chake kuchuluka kwa chifunga kumakhala kofunikira kwambiri, kulondola kumakhala kwakukulu. Sagnac effect kwenikweni ndi relativistic effect, yomwe ndi yofunika kwambiri pakupanga chinyezi.
Mfundo ya chifunga ndi yakuti kuwala kumatumizidwa kuchokera ku chubu cha photoelectric ndikudutsa mu cholumikizira (malekezero amodzi amalowa m'malo atatu). Matabwa awiri amalowa mu mphete mbali zosiyanasiyana kudzera mu mphete kenako amabwerera mozungulira bwalo limodzi kuti agwirizane bwino. Kuwala komwe kumabwerera kumabwerera ku LED ndikuzindikira mphamvu kudzera mu LED. Mfundo ya chifunga imawoneka yosavuta, koma chofunika kwambiri ndi momwe mungachotsere zinthu zomwe zimakhudza njira yowunikira ya matabwa awiri - vuto lalikulu kukhala chifunga.

Mfundo yaikulu ya fiber optic gyroscope

(2) kugawa

Malinga ndi mfundo yogwirira ntchito, ma fiber optic gyroscopes amatha kugawidwa m'magulu awiri: interferometric fiber optic gyroscope (I-FOG), resonant fiber optic gyroscope (R-FOG), ndi stimulated Brillouin scattering fiber optic gyroscope (B-FOG). Pakadali pano, fiber optic gyroscope yokhwima kwambiri ndi interferometric fiber optic gyroscope (m'badwo woyamba wa fiber optic gyroscope), yomwe imagwiritsidwa ntchito kwambiri. Imagwiritsa ntchito multi-turn fiber coil kuti iwonjezere mphamvu ya Sagnac. Kumbali inayi, double beam ring interferometer yokhala ndi multi-turn single-mode fiber coil ingapereke kulondola kwakukulu, zomwe zingapangitse kapangidwe konse kukhala kovuta kwambiri.
Malinga ndi mtundu wa loop, chifunga chingagawidwe m'magulu awiri: open-loop mist ndi closed-loop FOG. Ogg ili ndi ubwino wa kapangidwe kosavuta, mtengo wotsika, kudalirika kwambiri, komanso kugwiritsa ntchito mphamvu zochepa. Kumbali ina, kuipa kwa Ogg ndi linearity yoyikira-yotulutsa komanso kusiyana kochepa kwa mphamvu. Chifukwa chake, imagwiritsidwa ntchito makamaka ngati sensa ya ngodya. Kapangidwe koyambira ka open-loop IFOG ndi ring double-beam interferometer. Chifukwa chake, imagwiritsidwa ntchito makamaka ngati ili ndi kulondola kochepa komanso voliyumu yaying'ono.
Chiyerekezo cha magwiridwe antchito a chifunga
Chifunga chimagwiritsidwa ntchito makamaka poyesa liwiro la angular, ndipo muyeso uliwonse ndi cholakwika.

(1) phokoso

Kapangidwe ka phokoso ka chifunga kamakhala makamaka mu gawo lozindikira kuwala kapena kuwala kwa dzuwa, komwe kumatsimikiza kukhudzidwa kochepa kwa chinyezi. Mu fiber-optic gyroscope (FOG), gawo lofotokozera phokoso loyera lotuluka la angular rate ndi coefficient yoyenda mwachisawawa ya bandwidth yozindikira. Pankhani ya phokoso loyera lokha, tanthauzo la coefficient yoyenda mwachisawawa likhoza kuchepetsedwa ngati chiŵerengero cha kukhazikika kwa bias komwe kumayesedwa ku muzu wa sikweya wa bandwidth yozindikira mu bandwidth inayake.

Ngati pali mitundu ina ya phokoso kapena kusuntha, nthawi zambiri timagwiritsa ntchito kusanthula kwa Allan kwa kusiyana kuti tipeze coefficient yoyenda mwachisawawa pogwiritsa ntchito njira yoyenera.

(2) Kusayenda bwino

Kuwerengera ngodya kumafunika mukamagwiritsa ntchito chifunga. Ngodyayo imapezeka pogwiritsa ntchito angular velocity integration. Tsoka ilo, drift imasonkhana patatha nthawi yayitali, ndipo cholakwikacho chikukulirakulira. Kawirikawiri, pa ntchito yoyankha mwachangu (ya kanthawi kochepa), phokoso limakhudza kwambiri dongosolo. Komabe, pa ntchito yoyendera (ya nthawi yayitali), zero drift imakhudza kwambiri dongosolo.

(3) Chiŵerengero cha sikelo (chiwerengero cha sikelo)

Cholakwika cha scale factor chikakhala chaching'ono, zotsatira zake zimakhala zolondola kwambiri.

Kampani ya Beijing Rofea Optoelectronics Co., Ltd. yomwe ili ku "Silicon Valley" ku China - Beijing Zhongguancun, ndi kampani yapamwamba kwambiri yodzipereka kutumikira mabungwe ofufuza am'deralo ndi akunja, mabungwe ofufuza, mayunivesite ndi ogwira ntchito zofufuza zasayansi zamabizinesi. Kampani yathu imagwira ntchito yofufuza ndi kupanga zinthu za optoelectronic payokha, kupanga, kupanga, kugulitsa zinthu za optoelectronic, ndipo imapereka mayankho atsopano komanso ntchito zaukadaulo kwa ofufuza asayansi ndi mainjiniya amafakitale. Pambuyo pa zaka zambiri zopanga zinthu zatsopano payokha, yapanga mndandanda wolemera komanso wangwiro wa zinthu zamagetsi, zomwe zimagwiritsidwa ntchito kwambiri m'maboma, m'magulu ankhondo, m'mayendedwe, m'magetsi, m'zachuma, m'maphunziro, m'zachipatala ndi m'mafakitale ena.

Tikuyembekezera mgwirizano ndi inu!