Txoj cai thiab kev faib tawm ntawm huab cua

Txoj cai thiab kev faib tawm ntawm huab cua

(1) txoj cai

Lub hauv paus ntsiab lus ntawm pos yog hu ua Sagnac effect hauv physics. Nyob rau hauv txoj kev kaw lub teeb, ob kab teeb ntawm lub teeb los ntawm tib lub teeb pom kev zoo yuav cuam tshuam thaum lawv sib koom ua ke mus rau tib qhov chaw kuaj pom. Yog hais tias txoj kev kaw lub teeb muaj kev sib hloov mus rau qhov chaw inertial, lub beam propagating nyob rau hauv qhov zoo thiab tsis zoo cov lus qhia yuav ua rau lub teeb txoj kev sib txawv, uas yog proportional rau lub ceev ntawm lub Upper rotation kaum. Kev sib hloov lub kaum sab xis yog xam los ntawm kev siv cov theem sib txawv ntsuas los ntawm photoelectric detector.

Los ntawm cov mis, qhov ntev ntawm fiber ntau, qhov loj ntawm qhov muag pom kev taug kev vojvoog, qhov luv ntawm qhov muag pom lub wavelength. Qhov tseem ceeb tshaj qhov cuam tshuam cuam tshuam. Yog li qhov tseem ceeb tshaj qhov ntim ntawm huab cua, qhov siab dua qhov tseeb. Cov nyhuv Sagnac yog qhov tseem ceeb ntawm cov nyhuv relativistic, uas yog qhov tseem ceeb heev rau kev tsim cov dej noo.
Lub hauv paus ntsiab lus ntawm pos huab yog hais tias ib tug beam ntawm lub teeb raug xa tawm los ntawm lub photoelectric raj thiab hla los ntawm lub coupler (ib kawg nkag mus rau peb nres). Ob kab teeb nkag mus rau lub nplhaib sib txawv los ntawm lub nplhaib thiab tom qab ntawd rov qab ib ncig ntawm ib lub voj voog rau coherent superposition. Lub teeb xa rov qab rov qab mus rau LED thiab pom qhov siv zog los ntawm LED. Lub hauv paus ntsiab lus ntawm pos huab zoo li yooj yim, tab sis qhov tseem ceeb tshaj plaws yog yuav ua li cas tshem tawm cov xwm txheej uas cuam tshuam rau txoj kev kho qhov muag ntawm ob kab teeb - qhov teeb meem tseem ceeb los ua huab cua.

Txoj cai ntawm fiber ntau optic gyroscope

(2) kev faib tawm

Raws li txoj cai ua haujlwm, fiber ntau optic gyroscopes tuaj yeem muab faib ua interferometric fiber optic gyroscope (I-FOG), resonant fiber optic gyroscope (R-FOG), thiab txhawb Brillouin scattering fiber optic gyroscope (B-FOG). Tam sim no, qhov loj tshaj plaws fiber optic gyroscope yog interferometric fiber optic gyroscope (thawj tiam fiber ntau optic gyroscope), uas yog dav siv. Nws siv ntau txoj hlua fiber ntau los txhim kho Sagnac nyhuv. Ntawm qhov tod tes, ob chav beam nplhaib interferometer tsim los ntawm ntau qhov tig ib leeg-hom fiber ntau kauj tuaj yeem muab siab precision, uas yuav ua rau tag nrho cov qauv ntau dua.
Raws li lub voj hom, pos huab tuaj yeem muab faib ua qhov qhib-voj pos huab thiab kaw-voj FOG. Lub voj voog qhib fiber ntau optic gyroscope (Ogg) muaj qhov zoo ntawm cov qauv yooj yim, tus nqi qis, kev ntseeg siab, thiab kev siv hluav taws xob tsawg. Ntawm qhov tod tes, qhov tsis zoo ntawm Ogg yog cov khoom siv tsis zoo-tso tawm linearity thiab qhov me me dynamic ntau. Yog li ntawd, nws yog tsuas yog siv raws li lub kaum sab xis sensor. Cov qauv yooj yim ntawm lub voj qhib IFOG yog lub nplhaib ob-beam interferometer. Yog li ntawd, nws yog siv feem ntau nyob rau hauv qhov teeb meem ntawm tsawg precision thiab me me ntim.
Performance index ntawm huab
Fog feem ntau yog siv los ntsuas angular tshaj tawm, thiab txhua qhov kev ntsuas yog qhov yuam kev.

(1) suab nrov

Lub suab nrov mechanism ntawm pos huab yog tsuas yog concentrated nyob rau hauv lub kho qhov muag los yog photoelectric nrhiav tau ib feem, uas txiav txim qhov tsawg kawg nkaus rhiab heev ntawm noo noo. Nyob rau hauv fiber-optic gyroscope (FOG), qhov parameter characterizing cov zis dawb lub suab ntawm angular npaum li cas yog qhov random taug kev coefficient ntawm nrhiav bandwidth. Nyob rau hauv cov ntaub ntawv ntawm tsuas yog lub suab nrov dawb, lub ntsiab lus ntawm random taug kev coefficient yuav ua tau yooj yim raws li qhov piv ntawm qhov ntsuas kev tsis ncaj ncees rau lub hauv paus square ntawm kev tshawb nrhiav bandwidth nyob rau hauv ib qho kev bandwidth.

Yog tias muaj lwm hom suab nrov lossis drift, peb feem ntau siv Allan kev tsom xam ntawm qhov sib txawv kom tau txais qhov sib txawv ntawm kev taug kev los ntawm txoj kev tsim nyog.

(2) Zero drift

Lub kaum sab xis yog xav tau thaum siv pos huab. Lub kaum sab xis yog tau los ntawm angular tshaj tawm kev koom ua ke. Hmoov tsis zoo, lub drift yog sau tom qab lub sijhawm ntev, thiab qhov kev ua yuam kev loj zuj zus tuaj. Feem ntau hais lus, rau daim ntawv thov teb nrawm (lub sijhawm luv), lub suab nrov cuam tshuam rau lub cev. Txawm li cas los xij, rau daim ntawv thov navigation (ntev mus ntev), xoom drift muaj qhov cuam tshuam loj rau lub cev.

(3) Scale Factor (Qhov ntsuas qhov ntsuas)

Qhov me me ntawm qhov ntsuas qhov yuam kev yog, qhov tseeb qhov ntsuas qhov tshwm sim yog.

Beijing Rofea Optoelectronics Co., Ltd. nyob rau hauv Tuam Tshoj lub "Silicon Valley" - Beijing Zhongguancun, yog ib tug high-tech enterprise mob siab rau ua hauj lwm nyob rau hauv lub domestic thiab txawv teb chaws kev tshawb fawb cov koom haum, kev tshawb fawb institutes, universities thiab enterprise scientific kev tshawb fawb neeg ua hauj lwm. Peb lub tuam txhab feem ntau yog koom nrog kev tshawb fawb ywj pheej thiab kev tsim kho, tsim, tsim khoom, muag khoom ntawm optoelectronic cov khoom, thiab muab cov kev daws teeb meem tshiab thiab kev tshaj lij, kev pabcuam tus kheej rau cov kws tshawb fawb tshawb fawb thiab cov kws tshaj lij. Tom qab xyoo ntawm kev ywj pheej innovation, nws tau tsim ib tug nplua nuj thiab zoo meej series ntawm photoelectric khoom, uas yog dav siv nyob rau hauv lub nroog, tub rog, tsheb thauj mus los, hluav taws xob fais fab, nyiaj txiag, kev kawm, kev kho mob thiab lwm yam lag luam.

Peb tab tom tos ntsoov rau kev koom tes nrog koj!