Ikirere cya fibre optique inertial kugendana igisubizo

Sisitemu yo kugendana neza cyane nibikoresho byingenzi byo kugenzura indege no kugaba ibitero bya sisitemu yintwaro.Gahunda zayo nyamukuru zirimo gahunda ya platform hamwe na strapdown gahunda. Hamwe niterambere ryiterambere rya tekinoroji ya inertial na optique gyro, strapdown yakoreshejwe henshi mumirima yikirere hamwe nibyiza byo kwizerwa cyane, urumuri nubunini buto, gukoresha ingufu nke nigiciro gito^[1-4]. Kugeza ubu, sisitemu yo kuguruka mu kirere ni ihuriro rya sisitemu yo kugendana na laser gyro strapdown na sisitemu yo kugendana fibre optique gyro strapdown.Muri bo, LN-100G ya Northrop Grumman, H-764G ya Honeywell ya sisitemu yo kugendana na LN-251 ya fibre ya Northrop Grumman. sisitemu ya optic gyro strapdown yogukoresha yakoreshejwe cyane mumato yindege yabanyamerika^[1].Northrop Grumman Company yateje imbere LN-251 sisitemu yo kugendana kajugujugu ifite ikimenyetso cyingenzi cya fibre optique ya optique, hanyuma ikora LN-260 kugirango ihuze nogutwara indege. LN-260 yatoranijwe ningabo z’Amerika zirwanira mu kirere kugirango kuzamura indege zo mu bwoko bwa F-16 zo mu bwoko bw’intambara zirwanira mu mahanga. Mbere yo koherezwa, sisitemu ya LN-260 yageragejwe kugira ngo igere ku mwanya wa kilometero 0.49n (CEP), ikosa ry’umuvuduko uva mu majyaruguru wa 1.86ft / s (RMS), na an ikosa ryihuta ryiburasirazuba bwa 2.43ft / s (RMS) mubidukikije bifite imbaraga nyinshi.Nuko rero, sisitemu yo kugendana na optique ya strapdown inertial navigation irashobora kuba yujuje byuzuye ibisabwa nindege mubijyanye no kuyobora no kuyobora.^[1].

Ugereranije na laser gyro strapdown sisitemu yo kugendana, sisitemu yo kugendana fibre optique gyro strapdown ifite ibyiza bikurikira: 1) ntabwo ikenera imashini yimashini, yoroshya imiterere ya sisitemu nuburyo bugoye bwo kugabanya ibinyeganyega, igabanya uburemere nogukoresha ingufu, kandi itezimbere kwizerwa rya sisitemu yo kugendana; 2) Ikirangantego cyukuri cya fibre optique gyro gikubiyemo urwego rwamayeri kugeza kurwego rwibikorwa, kandi sisitemu yo kugendana nayo irashobora gukora sisitemu yo kugendana na sisitemu, ikubiyemo ibintu byose uhereye kuri sisitemu yimyitwarire kugeza kuri sisitemu yo kugendana intera ndende- indege yihanganira; 3) Ingano ya fibre optique giroscope iterwa nubunini bwimpeta ya fibre.Hamwe nimikoreshereze ikuze ya fibre nziza ya diameter, ingano ya fibre optique giroscope ifite ubunyangamugayo bumwe iragenda iba nto kandi ntoya, kandi iterambere ryumucyo na miniaturizasiyo ni inzira byanze bikunze.

Igishushanyo mbonera

Sisitemu yo mu kirere fibre optique gyro strapdown yogutekereza neza sisitemu yo gukwirakwiza ubushyuhe no gutandukanya amafoto yumuriro, ikanashyiraho gahunda ya "bitatu-cavity"^[6,7], harimo umwobo wa IMU, icyuma cya elegitoronike hamwe nububasha bwa kabiri.Umuyoboro wa IMU ugizwe n'imiterere y'umubiri wa IMU, impeta ya fibre optique hamwe na quartz flexible yihuta ya metero (quartz wongeyeho metero); Umuyoboro wa elegitoronike ugizwe na agasanduku k'amafoto ya giyro, ikibaho cyo guhindura metero, mudasobwa igendagenda hamwe n'ikibaho cy'isuku. ikibaho; Umuyoboro wa kabiri w'amashanyarazi ugizwe na module yapakishijwe ingufu za kabiri, filteri ya EMI, capacitor-charge-isohora.Isanduku ya foto ya elegitoroniki ya giyro hamwe na optique ya fibre optique mu cyuho cya IMU hamwe igizwe na gyro, hamwe na quartz flexible yihuta na metero ihinduranya metero hamwe bigize ibice byihuta^[8].

Gahunda rusange ishimangira gutandukanya ibice byamafoto nubushakashatsi bwa modular ya buri kintu, hamwe nigishushanyo cyihariye cya sisitemu ya optique hamwe na sisitemu yumuzunguruko kugirango ubushyuhe rusange bugabanuke no guhagarika kwivanga kwambukiranya imipaka. ibicuruzwa, umuhuza bikoreshwa muguhuza imbaho ​​zumuzunguruko mucyumba cya elegitoroniki, kandi impeta ya fibre optique na moteri yihuta mu cyumba cya IMU byaciwe.Nyuma yo gushinga IMU, inteko yose irakorwa.

 Ikibaho cyumuzunguruko mu cyuma cya elegitoroniki ni agasanduku ka foto ya elegitoronike ya giyro kuva hejuru kugeza hasi, harimo isoko yumucyo wa gyro, detector hamwe n’umuzunguruko w’imbere; Imirongo yumuzunguruko ikubiyemo ikibaho cyimbere hamwe nigisubizo cyibisubizo, ikibaho cyimbere kirangiza cyane cyane kugura ibintu byinshi byimikorere idahwitse yamakuru yibikoresho, itangwa ryamashanyarazi hamwe n’itumanaho ryo hanze, igisubizo cyibisubizo byuzuza cyane cyane kugendana inertial nogutwara igisubizo hamwe nubuyobozi bukomatanyije; nogukoresha icyogajuru, kandi ikohereza amakuru kumurongo wibisubizo byubuyobozi hamwe ninama yimbere kugirango irangize kugendana hamwe. Amashanyarazi ya kabiri hamwe numuzunguruko wa interineti bihuzwa binyuze mumihuza, kandi ikibaho cyumuzunguruko gihujwe nu muhuza.

Ikoranabuhanga ryingenzi

1. Igishushanyo mbonera

Sisitemu yo mu kirere ya fibre optique ya gyro igenda itahura dogere esheshatu zindege zerekana ubwisanzure hifashishijwe guhuza ibyuma byinshi. ibikoresho bya gyro, birashobora gusangira isoko yumucyo kugirango ikore igishushanyo mbonera cya axis eshatu; Kubintu byihuta byihuta, quartz flexible yihuta yihuta ikoreshwa muri rusange, kandi umuzenguruko ushobora guhinduka muburyo butatu.Hari kandi ikibazo cyigihe guhuza muburyo bwo kubona amakuru menshi.Kubijyanye no kuvugurura imyifatire ihanitse, igihe gihoraho gishobora kwemeza ukuri kugezweho.

2. Igishushanyo cyo gutandukanya amafoto

Fibre optique gyro ni sensor ya fibre optique ishingiye ku ngaruka ya Sagnac yo gupima igipimo cy’imfuruka. Muri bo, impeta ya fibre ni ikintu cyingenzi kigize umuvuduko ukabije wa fibre giroscope.Irakomerekejwe na metero magana kugeza kuri metero ibihumbi byinshi bya fibre.Niba umurima wubushyuhe bwimpeta ya fibre optique uhindutse, ubushyuhe kuri buri mwanya wimpeta ya fibre optique ihinduka nigihe, kandi imirishyo ibiri yumurabyo wumucyo inyura kumurongo mu bihe bitandukanye (usibye ingingo yo hagati ya optique ya fibre optique), bahura ninzira zitandukanye za optique, bikavamo itandukaniro ryicyiciro, iri hinduka ridasubirwaho ntirishobora gutandukana nicyiciro cya Sagneke cyatewe no kuzunguruka.Mu rwego rwo kuzamura ubushyuhe imikorere ya fibre optique gyroscope, igice cyibanze cya giroscope, impeta ya fibre, igomba kubikwa kure yubushyuhe.

Kubijyanye na fotoelectric ihuriweho na giroskopi, ibyuma bifata amashanyarazi hamwe nimbaho ​​zumuzunguruko wa giroscope byegeranye nimpeta ya fibre optique.Iyo sensor ikora, ubushyuhe bwigikoresho ubwacyo buzazamuka kurwego runaka, kandi bugire ingaruka kumpeta ya fibre optique binyuze mumirasire no gutwara.Mu rwego rwo gukemura ingaruka zubushyuhe kumpeta ya optique, sisitemu ikoresha itandukanyirizo ryamafoto optique ya fibre giroscope, harimo inzira ya optique nuburyo bwimiterere yumuzunguruko, ubwoko bubiri bwimiterere gutandukana kwigenga, hagati ya fibre nu murongo wa umurongo wa umurongo wa interineti. Irinde ubushyuhe buturuka kumasanduku yumucyo bigira ingaruka kumyuka ya fibre.

3. Imbaraga-zo kwishushanya

Fibre optique gyro strapdown sisitemu yo kugendana igomba kuba ifite imikorere yumuriro wo kwipimisha ku gikoresho kitagira inert.Kuberako sisitemu yo kugendana ikoresha uburyo bwo kwishyiriraho ibicuruzwa bidafite uburyo bwo guhinduranya ibintu, kwipimisha ubwabyo ibikoresho bitagira ingano byuzuzwa no gupima static mubice bibiri, aribyo , igikoresho-urwego rwo kwipimisha na sisitemu-urwego rwo kwipimisha, nta kwishima hanze.

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