Nzira yekutarisa sei kutwasuka kwegranite straightedge?

1. Perpendicularity yerutivi rwekururamisa kunopesana nebasa rekushanda: Isa granite straightedge pane imwe flat plate. Pfuura iyo dial geji, yakashongedzerwa nechiyero che 0.001mm, kuburikidza neyakajairwa kutenderera bara uye zero iyo pane yakajairwa sikweya. Zvadaro, zvakafanana, isa dial geji kune rimwe divi rekutwasanuka. Iyo dial gauge kuverenga ndiyo perpendicularity kukanganisa kune iro divi. Saizvozvo, edza iyo perpendicularity kukanganisa kune rimwe divi, uye tora iyo yakanyanya kukanganisa.

2. Contact Point Area Ratio yeParallel Straightedge: Isa mumiriri wekuratidzira kunzvimbo yekushanda kweiyo straightedge kuongororwa. Gaya pamusoro pendiro yesimbi yakakandwa kana kutwasanuka kweinokwana kurongeka kuburitsa mapoinzi akasiyana epanzvimbo yekushanda. Wobva waisa pepa rakajeka (senge plexiglass sheet) ine mazana maviri madiki masikweya e2.5mm x 2.5mm, anoyera 50mm x 25mm, pane chero chinzvimbo panzvimbo yekushanda yekutwasanuka kuti iedzwe. Tarisa chiyero chenzvimbo yeimwe sikweya ine mapoinzi ekusangana (muzvikamu zve 1/10). Verenga huwandu hwezviyero zviri pamusoro uye patsanura ne2 kuti uwane chiyero chenzvimbo yekusangana yenzvimbo yakaedzwa.

Chechitatu, tsigira mutongi anoenderana neakaenzana-urefu mabhuroko pamakasi ekutsigira mamaki 2L/9 kubva kumagumo ega ega emutongi. Sarudza bhiriji rekuyedza rakakodzera zvichienderana nehurefu hwenzvimbo yekushanda yemutongi (kazhinji nhanho 8 kusvika gumi, ine span iri pakati pe50 ne500mm). Zvadaro, isa bhiriji kune imwe magumo emutongi uye chengetedza iyo reflector kana nhanho pairi. Fambisa zambuko zvishoma nezvishoma kubva kune imwe mugumo wemutongi kuenda kune imwe, uchifambisa imwe neimwe span kubva kune autocollimator ine girajuweta ye1 ″ (kana 0.005mm/m) kana chiyero chemagetsi chine girajuation ye0.001mm/m (nokuda kwenzvimbo yekushanda yakareba kupfuura 500mm, mutongi weKirasi 1 ane dhigirii ye0mm/0mm. coincident level (chiyero chechimiro-chinopedza 0.02mm/m chinogona kushandiswa padanho 2).

IV. Parallelism yekumusoro uye yakaderera yekushanda nzvimbo, uye yenzvimbo yekushanda uye yakaderera pasi yerutsigiro, yechiyero chakafanana. Kana chidimbu chakafuratira chakakodzera chisipo, rutivi rwechinhanho chinogona kuiswa panzvimbo yekutsigira uye mutsauko wekukwirira kweyero yakayerwa uchishandisa lever micrometer ine graduation ye0.002mm kana micrometer ine graduation ye0.002mm.