Kodi nsanja ya granite Optical imatha bwanji kukhala yokhazikika ya 0.01μrad?

M'magawo oyesera owoneka bwino komanso opanga apamwamba, kukhazikika kwa angular pamlingo wa 0.01μrad ndi chizindikiro chofunikira. Mapulatifomu owoneka bwino a granite, okhala ndi zinthu zawo komanso kulumikizana kwaukadaulo, akhala chonyamulira chachikulu pakukwaniritsa kulondola kwambiri.

Ubwino wa zipangizo kuyala maziko okhazikika. Granite, monga mwala woyaka moto wopangidwa ndi geology zaka mazana mamiliyoni ambiri, umadziwika chifukwa cha mphamvu yake yotsika kwambiri yokulitsa matenthedwe, yomwe ndi theka la chitsulo ndi gawo limodzi mwa anayi la aluminiyumu. Kutentha kukasintha ndi 1 ℃, gawo la granite lalitali la mita imodzi limakula ndi ma micrometer 6 okha, pomwe gawo la aluminiyamu limakula ndi ma micrometer 23. Izi zimapewa bwino kupatuka kwa angular komwe kumachitika chifukwa cha matenthedwe. Pakalipano, ntchito yake yabwino kwambiri yochepetsera imatha kuchepetsa kugwedezeka kwakunja, kusunga nsanja kuti ikhale yosasunthika komanso kuchepetsa kusokonezedwa ndi zigawo za kuwala.

Kapangidwe kake kamene kamapangitsa kuti zisasunthike. Pulatifomu ya granite Optical, itatha kukonzedwa bwino kwamakina, imakhala yolimba kwambiri ndipo imatha kukana kusinthika kwa katundu. Kulondola kwake kwapang'onopang'ono kumafika pamlingo wapamwamba kwambiri pamsika. Kutengera kulondola kwamlingo wa 00 womwe umakwaniritsa mulingo wa GB4987-85 mwachitsanzo, kulolerana kwa flatness ndi 2 × (1 + d/1000) μm (d ndiye kutalika kwa diagonal), kumapereka chiwongolero chokhazikika chokhazikika cha zida zowunikira.

Kuwongolera kwamphamvu kumatheka kudzera mumgwirizano waukadaulo. Ikakhala ndi zida zapamwamba zodzipatula ngati akasupe a mpweya kapena maginito, nsanja ya granite imatha kusiyanitsa kugwedezeka kwapang'onopang'ono komanso pafupipafupi kwambiri. Kuphatikizidwa ndi zida zoyezera molondola kwambiri monga laser interferometers, kusintha kwa Angle kumayang'aniridwa munthawi yeniyeni. Kupatuka kukadutsa malire a 0.01μrad, njira yowongolera mayankho nthawi yomweyo imayendetsa njira yokonzekera bwino kuti iwonetsetse kuti nsanja nthawi zonse imakhala yolondola komanso yokhazikika.

Kuchokera pachimake cha zinthu mpaka kulimbikitsa luso laukadaulo, nsanja ya granite Optical, yokhala ndi kukhazikika kwamafuta, kugwedezeka kwa kugwedezeka ndi zabwino zake pokonzekera bwino monga maziko ake, kuphatikiza ndiukadaulo wowongolera wanzeru, yadutsa bwino kwambiri pamlingo wa 0.01μrad ndipo imagwiritsidwa ntchito kwambiri m'magawo ang'onoang'ono monga ma photolithmicalment, kusanthula ndi kuyesa laser optics olondola kwambiri mpaka kutalika kwatsopano.