Nyob rau hauv cov teb ntawm precision optical thwmsim thiab high-end manufacturing, angular stability ntawm 0.01μrad theem yog ib qho tseem ceeb qhia. Granite optical platforms, nrog rau lawv cov khoom siv thiab kev sib koom ua ke, tau dhau los ua cov neeg nqa khoom tseem ceeb rau kev ua tiav ultra-siab precision.
Qhov zoo ntawm cov ntaub ntawv nteg lub hauv paus ruaj khov. Granite, raws li lub pob zeb igneous tsim los ntawm geology ntau pua lab xyoo, muaj npe nrov rau nws cov coefficient qis heev ntawm thermal expansion, uas tsuas yog ib nrab ntawm cov hlau thiab ib feem plaub ntawm txhuas. Thaum qhov kub thiab txias hloov los ntawm 1 ℃, 1-meter-ntev granite tivthaiv nthuav los ntawm tsuas yog 6 micrometers, thaum lub txhuas tivthaiv nthuav los ntawm 23 micrometers. Qhov no zoo tiv thaiv qhov sib txawv ntawm qhov sib txawv los ntawm thermal deformation. Lub caij no, nws cov kev ua tau zoo damping tuaj yeem ua rau cov kev co sab nraud sai sai, ua kom lub platform nyob hauv lub xeev zoo li qub thiab txo kev cuam tshuam nrog cov khoom siv kho qhov muag.
Cov qauv tsim tshwj xeeb txhim kho rigidity. Granite optical platform, tom qab kev txhim kho cov qauv tsim kho kom zoo, tau ua kom zoo dua qub thiab tuaj yeem tiv taus cov khoom deformation. Nws qhov kev ua tiav qhov raug mus txog qib siab tshaj plaws hauv kev lag luam. Ua qhov 00-theem qhov tseeb uas ua tau raws li tus qauv GB4987-85 ua piv txwv, qhov kev sib haum xeeb tsuas yog 2 × (1 + d / 1000) μm (d yog kab pheeb ces kaum ntev), muab cov kev siv ncaj nraim rau cov khoom siv kho qhov muag.
Dynamic calibration yog ua tiav los ntawm kev sib koom tes. Thaum nruab nrog cov txheej txheem kev vibration siab heev xws li cua springs los yog sib nqus levitation, lub granite platform tuaj yeem cais cov zaus qis thiab cov kev vibrations siab. Ntxiv los ntawm high-precision ntsuas cov cuab yeej xws li laser interferometers, lub kaum sab xis hloov tau saib xyuas hauv lub sijhawm. Thaum qhov sib txawv tshaj qhov pib ntawm 0.01μrad, lub tswv yim tswj qhov system tam sim ntawd tsav cov txheej txheem kho kom zoo los xyuas kom meej tias lub platform yeej ib txwm nyob rau hauv lub xeev siab thiab ruaj khov.
Los ntawm cov ntsiab lus ntawm cov khoom siv rau kev txhawb nqa thev naus laus zis, granite kho qhov muag platform, nrog thermal stability, kev co kuj thiab precision ua qhov zoo raws li nws cov tub ntxhais, ua ke nrog kev txawj ntse tswj technology, tau ntse tawg los ntawm 0.01μrad precision pib thiab yog dav siv nyob rau hauv kev txiav-ntug teb xws li photolithography, astronomical soj ntsuam thiab laser pre-kev soj ntsuam tshiab.
Post lub sij hawm: May-23-2025