Emkhakheni wokuhlolwa kwe-optical ngokunemba kanye nokukhiqizwa okuphezulu, ukuzinza kwe-angular ezingeni le-0.01μrad kuyinkomba ebalulekile. Amaplathifomu e-granite optical, anezici zawo ezibonakalayo kanye nokusebenzisana kwezobuchwepheshe, abe inkatha eyinhloko yokufeza ukunemba okuphezulu kakhulu.
Izinzuzo zezinto zokwakha zibeka isisekelo esizinzile. I-Granite, njengetshe elivuthayo elakhiwe yi-geology eminyakeni engamakhulu ezigidi, idume nge-coefficient yayo ephansi kakhulu yokwanda okushisayo, okuyingxenye kuphela yensimbi kanye nengxenye yesine ye-aluminium. Uma izinga lokushisa lishintsha ngo-1℃, ingxenye ye-granite eyimitha engu-1 ubude ikhula ngama-micrometer angu-6 kuphela, kuyilapho ingxenye ye-aluminium ikhula ngama-micrometer angu-23. Lokhu kugwema ngokuphumelelayo ukuchezuka kwe-angular okubangelwa ukuguqulwa kwe-thermal. Ngaleso sikhathi, ukusebenza kwayo okuhle kakhulu kokudambisa kunganciphisa ngokushesha ukudlidliza kwangaphandle, kugcine inkundla isesimweni esimile futhi kwehlise ukuphazamiseka kwezingxenye ezibonayo.
Idizayini enembayo yesakhiwo ithuthukisa ukuqina. Iplatifomu ye-granite optical, ngemva komklamo wesakhiwo somshini othuthukisiwe, ithuthukise kakhulu ukuqina futhi ingamelana ngempumelelo nokuguqulwa komthwalo. Ukunemba kokucubungula kwayo kufinyelela ezingeni eliphezulu embonini. Uma sithatha ukunemba kwezinga elingu-00 elihlangabezana nezinga le-GB4987-85 njengesibonelo, ukubekezelela isicaba kungu-2×(1 + d/1000)μm kuphela (d ubude obuyi-diagonal), okuhlinzeka ngereferensi yokufaka eyisicaba kakhulu yemishini yokubona.
Ukulinganisa okunamandla kufinyelelwa ngokusebenzisana kwezobuchwepheshe. Uma ifakwe amasistimu okuhlukanisa okudlidliza athuthukisiwe afana neziphethu zomoya noma i-levitation kazibuthe, inkundla yegranite ingahlukanisa imvamisa ephansi kanye nokudlidliza okuphezulu. Kwengezwe okokusebenza kokulinganisa okunembe okuphezulu njengama-laser interferometer, izinguquko ze-engeli zigadwa ngesikhathi sangempela. Uma ukuchezuka kweqe umkhawulo we-0.01μrad, isistimu yokulawula impendulo ngokushesha ishayela indlela yokulungisa kahle ukuze kulungiswe ukuze kuqinisekiswe ukuthi inkundla ihlezi isesimweni sokunemba okuphezulu nesizinzile.
Kusukela kungqikithi yezinto kuya ekuhlonyisweni kwezobuchwepheshe, iplatifomu ye-granite optical, enokuqina okushisayo, ukumelana nokudlidliza kanye nezinzuzo zokucubungula ngokunemba njengomnyombo wayo, kuhlanganiswe nobuchwepheshe bokulawula obuhlakaniphile, iphumelele ukunqamula umkhawulo wokunemba ongu-0.01μrad futhi isetshenziswa kabanzi emikhakheni esezingeni eliphezulu njengesilinganiso socwaningo, i-laser ye-proservation kanye ne-proservation ama-optics anembe kakhulu ukuya ekuphakameni okusha.
Isikhathi sokuthumela: May-23-2025