Kwimimandla yovavanyo lwe-optical oluchanekileyo kunye nokuveliswa okuphezulu, uzinzo lwe-angular kwinqanaba le-0.01μrad luphawu oluphambili. Amaqonga e-optical e-granite, aneempawu zawo zezinto kunye nokusebenzisana kwetekhnoloji, abe yintloko yokuthwala ukufezekisa ukuchaneka okuphezulu kakhulu.
Iingenelo zezinto zokwakha zibeka isiseko esizinzileyo. I-Granite, njengelitye eliyi-igneous elenziwe yi-geology kwiminyaka engamakhulu ezigidi, yaziwa ngokuba ne-coefficient yayo ephantsi kakhulu yokwanda kobushushu, eyisiqingatha sentsimbi kunye nesinye kwisine se-aluminium. Xa ubushushu butshintsha nge-1℃, i-granite component enobude bemitha e-1 yanda nge-6 micrometers kuphela, ngelixa i-aluminium component yanda nge-23 micrometers. Oku kuthintela ngokufanelekileyo ukuphambuka kwe-angular okubangelwa kukuguquguquka kobushushu. Okwangoku, ukusebenza kwayo okugqwesileyo kokudambisa kunokunciphisa ngokukhawuleza ukungcangcazela kwangaphandle, kugcine iqonga likwimeko engaguqukiyo kwaye kunciphise ukuphazamiseka kwezinto ezibonakalayo.
Uyilo oluchanekileyo lwesakhiwo luphucula ukuqina. Iqonga le-granite optical, emva koyilo lwesakhiwo soomatshini oluphuculweyo, liphucule kakhulu ukuqina kwaye linokumelana ngempumelelo nokuguquguquka komthwalo. Ukuchaneka kokucubungula umphezulu walo kufikelela kwinqanaba eliphezulu kushishino. Ukuthatha ukuchaneka kwamanqanaba angama-00 okuhlangabezana nomgangatho we-GB4987-85 njengomzekelo, ukunyamezelana kokuthe tyaba yi-2×(1 + d/1000)μm kuphela (d bubude obuthe tyaba), okubonelela ngereferensi yokufaka ethe tyaba kakhulu kwizixhobo zokukhanya.
Ukulinganiswa okunamandla kufezekiswa ngokusebenzisana kwezobuchwepheshe. Xa ixhotyiswe ngeenkqubo zokwahlula ukungcangcazela eziphambili ezifana nezipringi zomoya okanye i-magnetic levitation, iqonga le-granite linokwahlula ukungcangcazela okuphantsi kunye nokuphezulu. Incediswa zizixhobo zokulinganisa okuchanekileyo ezifana nee-laser interferometers, utshintsho lwe-Angle lujongwa ngexesha langempela. Nje ukuba ukuphambuka kudlule umda we-0.01μrad, inkqubo yolawulo lwempendulo ngoko nangoko iqhuba indlela yokulungisa ukuze kuqinisekiswe ukuba iqonga lihlala likwimeko yokuchaneka okuphezulu nokuzinzileyo.
Ukususela kwisiseko sezinto ukuya ekuxhobiseni ubuchwepheshe, iqonga le-granite optical, elinozinzo lobushushu, ukumelana nokungcangcazela kunye neenzuzo zokucubungula ngokuchanekileyo njengesiseko salo, lidibene netekhnoloji yokulawula ekrelekrele, liphumelele ukudlula umda wokuchaneka kwe-0.01μrad kwaye lisetyenziswa kakhulu kwiindawo eziphambili ezifana ne-photolithography, ukujonga izinto zeenkwenkwezi kunye nokulinganisa i-laser, ukukhuthaza uphando kunye nokuveliswa kwe-optics echanekileyo kakhulu ukuya kubude obutsha.
Ixesha leposi: Meyi-23-2025