Chifukwa Chake Ma Gyroscope a Fiber Optic Ndi Abwino Kwambiri Pamachitidwe Oyendera Molondola Kwambiri

Mu dziko la inertial sensing, kulondola ndiko kusiyana pakati pa kupambana kwa ntchito ndi kulephera kwake. Pamene mafakitale akukankhira patsogolo pa milingo yapamwamba yodziyimira pawokha—kuyambira kufufuza m'nyanja yakuya mpaka kuika ma satellite pamalo—zipangizo zomwe zimapereka "chidziwitso cha malangizo" ziyenera kukhala zolondola.

Fiber Optic Gyroscope (FOG), makamaka mitundu ngati BSD50, yakhala muyezo wabwino kwambiri woyendetsera bwino kwambiri. Koma n’chiyani chimapangitsa ukadaulo uwu kukhala wapamwamba kuposa njira zina zachikhalidwe zogwiritsira ntchito makina kapena MEMS?

Fiziki ya Kulondola Kwambiri: Zotsatira za Sagnac

Pamtima pa chilichonse CHIKHUMBOndi mfundo yofunikira kwambiri ya fizikisi yotchedwa Sagnac Effect.

Mosiyana ndi ma gyroscope amakina omwe amagwiritsa ntchito ma rotator ozungulira, CHITHUNZI chimagwiritsa ntchito kuwala kowala komwe kumayenda mbali zosiyana kudzera mu coil yayitali ya ulusi wowala. Coil ikazungulira, kuwala kumodzi kumayenda mtunda waufupi pang'ono kuposa winayo. Izi zimapangitsa kusintha kwa gawo komwe kungayesedwe molondola kwambiri.

Popeza kuwala kumayenda pa liwiro losasintha, miyeso yake ndi yofulumira komanso yothandiza kwambiri ngakhale pa kuzungulira kwa mphindi zochepa kwambiri. Izi zimathandiza makina monga BSD50 kupereka deta ya liwiro la angular nthawi yeniyeni popanda kuchedwa konse.

Kukhazikika kwa Boma Lolimba: Palibe Zigawo Zosuntha

Chimodzi mwa zabwino kwambiri za ukadaulo wa FOG ndi kapangidwe kake kolimba.

Ma Mechanical Gyros: Ali ndi ziwalo zozungulira mwachangu zomwe pamapeto pake zimawonongeka, zimafuna mafuta, komanso zimakhudzidwa ndi kukangana kwa mphamvu ya ma bearing.

MEMS Gyros: Ngakhale kuti ndi yaying'ono, imadalira zinthu zazing'ono zomwe zimagwedezeka zomwe zimatha "kusokonezeka" mosavuta ndi kugwedezeka kwapamwamba kwakunja.

Komabe, CHIKHUMBO ndi chinthu cholimba cha ulusi wagalasi ndi zamagetsi. Izi zimapangitsa kuti chisamawonongeke ndi kuwonongeka kwa makina. Kwa makina oyendetsera ndege omwe amagwira ntchito m'malo ogwedezeka kwambiri—monga magalimoto okhala ndi zida, makina akuluakulu amafakitale, kapena kuphulika kwa ma roketi—BSD50 imapereka mphamvu zomwe masensa osuntha sangagwirizane nazo.

Kukhazikika Kwapadera kwa Tsankho ndi Phokoso Lochepa

Mu kuyenda kwa nthawi yayitali, mdani wamkulu ndi "Drift." Ngati gyroscope ili ndi kusakhazikika kwa bias, malo owerengedwawo amachoka pang'onopang'ono kuchoka pa chowonadi, zomwe zimapangitsa kuti pakhale zolakwika zazikulu pakapita nthawi.

Mayankho a FOG amadziwika ndi Ultra-Low Bias Instability yawo. Chifukwa chakuti chowunikira (kuwala) sichikhudzidwa ndi mphamvu yokoka kapena kufulumira kwa mzere mofanana ndi masensa okhala ndi mass-based, "phokoso" mu data ndi lotsika kwambiri. Izi zimalola:

Kuwerengera Mosatha: Kuyenda molondola kwa nthawi yayitali popanda chizindikiro cha GPS.

Kukhazikika Kwambiri: Kusunga makamera kapena ma antenna akuyang'ana pa chandamale molondola kwambiri.

Kuphatikizana Kwakang'ono: Ubwino wa BSD50

M'mbuyomu, chifunga chinali chachikulu ndipo chinali chosungira zombo zazikulu zankhondo. Komabe, uinjiniya wamakono wapangitsa kuti pakhale njira zothetsera mavuto monga BSD50.

Pogwiritsa ntchito njira zapadera zozungulira ulusi ndi ma optoelectronics ophatikizidwa, BSD50 imayika magwiridwe antchito a tactical-grade mu mawonekedwe ang'onoang'ono. Izi zimathandiza opanga kuti azitha kuyendetsa bwino kwambiri mu:

Ma UAV anzeru: Kulimbitsa kukhazikika kwa ndege mu mphepo yamphamvu.

Ma ROV a Pansi pa Madzi: Kusunga malo olunjika m'madzi akuya a m'nyanja komwe GPS singafikire.

Kujambula Mapu a M'manja: Kuonetsetsa kuti pali kulondola kwa mulingo wa sentimita imodzi pofufuza LiDAR.

Kukana Kusokonezedwa ndi Zachilengedwe

Makina oyendetsera nthawi zambiri amagwira ntchito m'malo ovuta amagetsi. Chifukwa chakuti chinthu chachikulu chozindikira mu FOG ndi ulusi wowala—osati dera lachitsulo—mwachibadwa chimakhala cholimba kwambiri ku Electromagnetic Interference (EMI). Izi zimapangitsa makina opangidwa ndi FOG kukhala abwino kwambiri kugwiritsidwa ntchito pafupi ndi ma mota amphamvu amagetsi kapena m'malo ankhondo apamagetsi komwe kukhulupirika kwa chizindikiro ndikofunikira kwambiri.

Kusintha kupita ku Fiber Optic Gyroscopes sikungowonjezera luso lamakono; ndi kudzipereka ku kudalirika. Pogwiritsa ntchito liwiro la kuwala ndi kapangidwe ka solid-state, BSD50 imapereka maziko oyendetsera omwe ndi okhazikika, olondola, komanso omangidwa kuti akhale olimba kwambiri padziko lapansi (kapena kunja).