Daim ntawv thov cov nyhuv ntawm laser tu tshuab hauv pob zeb sculpture tu yog qhov tseem ceeb heev. Raws li kev tshawb fawb, laser tu tshuab tuaj yeem tshem tawm cov av thiab cov txheej txheem ntawm cov pob zeb sculptures, tsis muaj kev puas tsuaj rau cov pob zeb sculptures lawv tus kheej. Cov hauv qab no yog qee qhov kev thov tshwj xeeb thiab kev ntsuam xyuas cuam tshuam:
1. Nyob rau hauv Palace Tsev khaws puav pheej, laser tu tshuab yog siv los ntxuav marble kab lis kev cai relics. Los ntawm kev siv dual-wavelength laser tu uas ua ke nrog infrared thiab ultraviolet, cov kab mob dub crusted nyob rau saum npoo ntawm pob zeb kab lis kev cai relics tuaj yeem raug tshem tawm zoo yam tsis muaj kev puas tsuaj rau cov kab lis kev cai ntawm lawv tus kheej. Cov txiaj ntsig kev sim qhia tau hais tias thaum lub zog infrared thiab ultraviolet yog 16.8mJ thiab 1.2mJ feem, nws muaj kev tu zoo rau cov kuab paug dub dub.
2. Hauv lwm txoj kev tshawb fawb, picosecond laser tu tshuab tau siv los ntxuav cov khoom siv marble. Qhov kev sim pom tau tias qhov kev ua kom zoo tu tsis zoo yog laser zog 18W, scanning ceev 1000mm / s, thiab tu lub sij hawm 8 zaug. Tom qab ntxuav, qhov kev faib ua feem ntawm cov hlau sulfur, cov pa phem tseem ceeb, poob los ntawm 94.57%, thiab qhov roughness ntawm thaj chaw tom qab ntxuav yog 1.267 μm. Noj rau hauv tus account qhov kev faib ua feem ntawm cov pa phem thiab nto roughness tom qab ntxuav, tag nrho cov nyhuv ntawm picosecond laser tu yog zoo dua li ntawm nanosecond laser tu.
3. Laser tu tshuab kuj yog siv los ntxuav marble sculptures los ntawm Roman faj tim teb chaws thiab plaster sculptures los ntawm National Gallery ntawm Athens. Txoj kev tshawb no pom tias siv 1064nm ze-infrared lub teeb ib leeg yuav ua rau yellowing, tab sis ua ke nrog 355nm ultraviolet lub teeb rau tu, cov nyhuv tu kom zoo tuaj yeem tau txais yam tsis muaj kev puas tsuaj rau cov kab lis kev cai ntawm lawv tus kheej.
4. Nyob rau hauv Suav teb, laser tu tshuab kuj tau siv rau kev tu cov pob zeb kab lis kev cai relics, xws li Yungang Grottoes, Huashan Pob Zeb Paintings, thiab lwm yam., thiab tau ua tiav cov txiaj ntsig zoo, thiab cov txheej txheem kev khiav hauj lwm tshwj xeeb rau laser ntxuav ntawm cov khoom paug ntawm pob zeb. kev cai relics tau tsim.
Hauv cov ntsiab lus, cov nyhuv ntawm laser ntxuav ntawm cov pob zeb sculptures yog qhov tseem ceeb heev. Nws tuaj yeem tsis tsuas yog tshem tawm cov pa phem ntawm qhov chaw ntawm pob zeb sculptures, tab sis kuj tiv thaiv kab lis kev cai relics los ntawm kev puas tsuaj. Nws yog ib qho kev nyab xeeb, siv tau zoo thiab ib puag ncig tus phooj ywg tu tshuab.
