Nigute urubuga rwa granite optique rushobora kugera kuri 0.01μrad?

Mubice byubushakashatsi bwuzuye bwa optique hamwe ninganda-zohejuru zikora, guhagarara neza kurwego rwa 0.01μrad nikimenyetso cyingenzi. Granite optique yububiko, hamwe nibintu bifatika hamwe nubuhanga bwikoranabuhanga, byahindutse intandaro yo kugera kuri ultra-high precision.

Ibyiza byibikoresho bishyiraho urufatiro ruhamye. Granite, nk'urutare rwaka rwakozwe na geologiya mu myaka miriyoni amagana, ruzwiho kuba coefficient nkeya cyane yo kwaguka k'ubushyuhe, ni kimwe cya kabiri cy'icyuma na kimwe cya kane cya aluminium. Iyo ubushyuhe buhindutse kuri 1 ℃, igice cya metero 1 z'uburebure bwa granite cyaguka kuri micrometero 6 gusa, mugihe ibice bya aluminiyumu byiyongera kuri micrometero 23. Ibi birinda neza gutandukana kwinguni biterwa no guhindura ubushyuhe. Hagati aho, imikorere yacyo nziza cyane irashobora kwihutisha guhuza ibinyeganyega byo hanze, kugumisha urubuga muburyo buhagaze no kugabanya kwivanga hamwe nibikoresho bya optique.

Igishushanyo mbonera cyubaka cyongera ubukana. Ibikoresho bya granite optique, nyuma yuburyo bwiza bwububiko bwububiko, bwazamuye cyane gukomera kandi birashobora kurwanya imitwaro ihindagurika. Ubuso bwacyo bwo gutunganya neza bugera kurwego rwo hejuru muruganda. Dufashe urwego rwa 00 rwukuri rwujuje ubuziranenge bwa GB4987-85 nkurugero, kwihanganira uburinganire ni 2 × (1 + d / 1000) μ m (d ni uburebure bwa diagonal), bitanga uburyo bwo kwishyiriraho cyane kubikoresho bya optique.

Calibibasi ya Dynamic igerwaho binyuze mubufatanye bwikoranabuhanga. Iyo ifite ibikoresho bigezweho byo kwihererana nka sisitemu yo mu kirere cyangwa imbaraga za magnetique, urubuga rwa granite rushobora gutandukanya umuvuduko muke hamwe n’umuvuduko mwinshi. Hiyongereyeho ibikoresho byo gupima neza cyane nka laser interferometero, impinduka zinguni zikurikiranwa mugihe nyacyo. Iyo gutandukana kurenze igipimo cya 0.01μrad, sisitemu yo kugenzura ibitekerezo ihita itwara uburyo bwiza bwo guhuza neza kugirango ikosorwe kugirango harebwe ko urubuga ruhora ruri murwego rwo hejuru kandi ruhamye.

Kuva mubintu byingenzi kugeza kubushobozi bwikoranabuhanga, platform ya optique ya granite, hamwe nubushyuhe bwumuriro, kurwanya ihindagurika hamwe nibyiza byo gutunganya neza nkibyingenzi byayo, bifatanije nubuhanga bwo kugenzura ubwenge, byacitse neza kurwego rwa 0.01μrad kandi bigakoreshwa cyane mubice bigezweho nka fotolitografiya, kwitegereza inyenyeri no gupima laser, biteza imbere ubushakashatsi no gukora optique ihanitse cyane.