Mfundo ndi gulu la chifunga

Mfundo ndi gulu la chifunga

(1) mfundo

Mfundo ya chifunga imatchedwa Sagnac effect mu physics. Munjira yotseka yowunikira, nyali ziwiri za kuwala kochokera ku gwero lomwelo zowunikira zidzasokonezedwa zikalumikizidwa kumalo ozindikira omwewo. Ngati njira yotseka yowunikira imakhala ndi kasinthasintha wokhudzana ndi malo ozungulira, mtengo womwe umafalikira m'njira zabwino ndi zoipa udzatulutsa kusiyana kwa njira yowala, yomwe ili yofanana ndi liwiro la ngodya yozungulira. Kuthamanga kwa ngodya kumawerengedwa pogwiritsa ntchito kusiyana kwa gawo komwe kuyezedwa ndi chowunikira cha photoelectric.

Kuchokera mu fomula, kutalika kwa ulusi wa ulusi, kukulirakulira kwa utali wozungulira wa kuwala, kumachepetsa kutalika kwa mawonekedwe a kuwala. Chodziwika kwambiri chosokoneza chimakhala. Chifukwa chake kuchuluka kwa chifunga kumakhala kofunika kwambiri, ndikokwera kwambiri. Sagnac kwenikweni ndi relativistic zotsatira, zomwe ndizofunikira kwambiri pakupanga chinyezi.
Mfundo ya chifunga ndi yakuti kuwala kwa kuwala kumatumizidwa kuchokera ku chubu cha photoelectric ndikudutsa pa coupler (kumapeto kumodzi kumalowetsa katatu). Mitanda iwiri imalowa mu mpheteyo mbali zosiyanasiyana kudzera mu mpheteyo kenako imabwerera mozungulira bwalo limodzi kuti igwirizane. Kuwala kobwereranso kumabwereranso ku LED ndikuzindikira kulimba kudzera mu LED. Mfundo ya chifunga ikuwoneka yophweka, koma chofunika kwambiri ndi momwe mungachotsere zinthu zomwe zimakhudza njira ya kuwala ya matabwa awiri -vuto lalikulu kukhala chifunga.

Mfundo ya fiber optic gyroscope

(2)gulu

Malinga ndi mfundo yogwirira ntchito, ma fiber optic gyroscopes amatha kugawidwa kukhala interferometric fiber optic gyroscope (I-FOG), resonant fiber optic gyroscope (R-FOG), ndi Brillouin yolimbikitsa kumwaza fiber optic gyroscope (B-FOG). Pakalipano, makina okhwima kwambiri a fiber optic gyroscope ndi interferometric fiber optic gyroscope (m'badwo woyamba wa fiber optic gyroscope), yomwe imagwiritsidwa ntchito kwambiri. Imagwiritsa ntchito coil yamitundu yambiri kuti iwonjezere mphamvu ya Sagnac. Kumbali inayi, interferometer yawiri yamtengo wapatali yopangidwa ndi multi-turn single-mode fiber coil ingapereke kulondola kwambiri, zomwe zidzapangitse dongosolo lonselo kukhala lovuta kwambiri.
Malinga ndi mtundu wa loop, chifunga chimatha kugawidwa kukhala nkhungu yotseguka ndi FOG yotseka. The open-loop fiber optic gyroscope (Ogg) ili ndi zabwino zamapangidwe osavuta, mtengo wotsika, kudalirika kwambiri, komanso kugwiritsa ntchito mphamvu zochepa. Kumbali ina, zoyipa za Ogg ndizosatulutsa bwino zotulutsa komanso mawonekedwe ang'onoang'ono osinthika. Chifukwa chake, imagwiritsidwa ntchito makamaka ngati sensa yamakona. Mapangidwe oyambira a IFOG otseguka ndi mphete yawiri-mtengo interferometer. Chifukwa chake, imagwiritsidwa ntchito makamaka pamikhalidwe yocheperako komanso yocheperako.
Mlozera wantchito wa chifunga
Chifunga chimagwiritsidwa ntchito poyeza kuthamanga kwa angular, ndipo muyeso uliwonse ndi wolakwika.

(1) phokoso

Phokoso limagwirira chifunga makamaka lokhazikika mu gawo la kuwala kapena chithunzi chamagetsi, chomwe chimatsimikizira kukhudzika kocheperako kwa chinyezi. Mu fiber-optic gyroscope (FOG), chizindikiro chowonetsa phokoso loyera la liwiro la angular ndi gawo loyenda mwachisawawa la bandwidth yozindikira. Pankhani ya phokoso loyera lokha, tanthawuzo la coefficient yoyenda mwachisawawa litha kukhala losavuta monga chiŵerengero cha kukhazikika kwa tsankho kumtunda wapakati wa bandwidth yodziwikiratu mu bandwidth inayake.

Ngati pali phokoso lamtundu wina kapena kugwedezeka, nthawi zambiri timagwiritsa ntchito kusanthula kwa Allan kuti tipeze machulukidwe oyenda mwachisawawa pogwiritsa ntchito njira yoyenera.

(2) Kungoyenda ziro

Kuwerengera kwa ngodya ndikofunikira mukamagwiritsa ntchito chifunga. Ngodya imapezedwa ndi kuphatikizika kwa angular velocity. Tsoka ilo, kusokonekera kumasonkhanitsidwa pakapita nthawi yayitali, ndipo cholakwikacho chikukulirakulira. Nthawi zambiri, poyankha mwachangu (nthawi yochepa), phokoso limakhudza kwambiri dongosolo. Komabe, pakugwiritsa ntchito navigation (kwanthawi yayitali), zero Drift imakhudza kwambiri dongosolo.

(3) Scale factor (scale factor)

Kuchepa kwa vuto la sikelo, ndiye kuti zotsatira zake zimakhala zolondola kwambiri.

Beijing Rofea Optoelectronics Co., Ltd. yomwe ili ku "Silicon Valley" ku China - Beijing Zhongguancun, ndi bizinesi yapamwamba kwambiri yodzipereka potumikira mabungwe ofufuza zapakhomo ndi akunja, mabungwe ofufuza, mayunivesite ndi ogwira ntchito kafukufuku wa sayansi. Kampani yathu imachita nawo kafukufuku wodziyimira pawokha ndi chitukuko, kapangidwe, kupanga, kugulitsa zinthu za optoelectronic, ndipo imapereka mayankho aluso ndi ntchito zamaluso, zotsogola za akatswiri ofufuza asayansi ndi akatswiri opanga mafakitale. Pambuyo pazaka zatsopano zodziyimira pawokha, zapanga mndandanda wolemera komanso wabwino kwambiri wazinthu zamagetsi, zomwe zimagwiritsidwa ntchito kwambiri m'matauni, asitikali, zoyendera, mphamvu zamagetsi, ndalama, maphunziro, zamankhwala ndi mafakitale ena.

Tikuyembekezera mgwirizano ndi inu!