1. I-Perpendicularity yohlangothi lwe-straightedge ngokumelene nendawo yokusebenza: Beka i-granite eqondile epuleti eliyisicaba. Dlula igeji yokudayela, efakwe isikali esingu-0.001mm, kubha eyindilinga ejwayelekile bese uyiqanda esikweleni esijwayelekile. Bese, ngokufanayo, beka igeji yokudayela ohlangothini olulodwa lwe-straightedge. Ukufundwa kwegeji yokudayela kuyiphutha le-perpendicularity yalolo hlangothi. Ngokufanayo, hlola iphutha le-perpendicularity ngakolunye uhlangothi, futhi uthathe iphutha elikhulu.
2. Isilinganiso Sendawo Yokuxhumana ye-Parallel Straightedge: Faka i-ejenti yokubonisa endaweni yokusebenza ye-straightedge ezohlolwa. Gaya indawo engaphezulu epuleti lensimbi elicijile noma ukuqondisa okuqondile okungenani okufanayo ukuze uveze izindawo zokuthintana ezihlukile endaweni yokusebenza. Bese, beka ishidi elibonisa ngale (elifana neshidi le-plexiglass) elinezikwele ezincane ezingu-200 ezingu-2.5mm x 2.5mm, elikala 50mm x 25mm, kunoma iyiphi indawo endaweni yokusebenza ye-straightedge ezohlolwa. Qaphela isilinganiso sendawo yesikwele ngasinye esiqukethe izindawo zokuxhumana (ngamayunithi ka-1/10). Bala isamba sezilinganiso ezingenhla bese uhlukanisa ngo-2 ukuze uthole isilinganiso sephoyinti lokuxhumana lendawo ehloliwe.
Okwesithathu, sekela irula elihambisanayo elinamabhulokhi anobude obulinganayo kumamaki okusekela ajwayelekile angu-2L/9 kusukela ekugcineni kwerula. Khetha ibhuloho elifanele lokuhlola elisuselwe kubude bendawo yokusebenza yerula (ngokuvamile izinyathelo eziyisi-8 kuye kweziyi-10, ezine-span phakathi kuka-50 no-500mm). Bese, beka ibhuloho ekugcineni kwerula futhi uvikele isibonisi noma ileveli kuso. Hambisa ibhuloho kancane kancane usuka kolunye uhlangothi lwerula uye kwelinye, uhambise i-span ngayinye usuka ku-autocollimator eneziqu ezingu-1″ (noma 0.005mm/m) noma ileveli ye-elekthronikhi eneziqu ezingu-0.001mm/m (ngobude bendawo yokusebenza obungaphezu kuka-500mm, irula Lekilasi 1 elinomphumela wokufunda endaweni engu-0mm/m. Ileveli eqondane (izinga lohlobo lohlaka elineziqu ezingu-0.02mm/m lingasetshenziswa ezingeni lesi-2).
IV. Ukufana kwezindawo zokusebenza ezingenhla neziphansi, kanye nendawo yokusebenza kanye nendawo yokusekela ephansi, yezinga elihambisanayo. Uma ipuleti eliyisicaba elifanelekile lingatholakali, uhlangothi lwezinga lungabekwa endaweni yokusekela kanye nomehluko wokuphakama wezinga elilinganiswa kusetshenziswa i-lever micrometer eneziqu ze-0.002mm noma i-micrometer eneziqu ze-0.002mm.
Isikhathi sokuthumela: Sep-04-2025