Ngati munawerengapo pepala lapadera la wogulitsa ndikuwona mzere ngati "woyesedwa, wolondola malinga ndi miyezo ya dziko," n'zosavuta kuudutsa ngati boilerplate. Siziyenera kukhala choncho. Kulondola ndi chimodzi mwa zinthu zochepa zomwe zili pa pepala lapadera zomwe zimatsimikizika, ndipo ndi chimodzi mwa zomwe zimatchulidwa kwambiri.
Unyolo, wafotokozedwa mwachidule
Kutsata bwino kumatanthauza kuti kulondola kwa chida choyezera kungalumikizidwe, kudzera mu unyolo wosasweka wa kufananiza, kubwerera ku muyezo wodziwika bwino wa dziko kapena wapadziko lonse lapansi. Mwakuchita izi zikuwoneka ngati piramidi: bungwe la dziko lonse la metrology — NIST ku US, PTB ku Germany, NIM ku China, NPL ku UK — limasunga miyezo yoyambira yowunikira. Ma labu ovomerezeka owunikira m'madera amayerekeza zida zawo zowunikira ndi miyezo yoyambirirayo pa nthawi yodziwika. Zida zowunikira za fakitale — zizindikiro zoyimbira, ma interferometer a laser, milingo yamagetsi — kenako zimayesedwa ndi zizindikiro za labu yachigawo, ndi satifiketi yosonyeza kufananiza, kusiyana komwe kunayesedwa, ndi tsiku.
Dulani ulalo uliwonse mu unyolo umenewo ndipo mawu oti "calibrated" amasiya kukhala ndi tanthauzo lalikulu. Chida chomwe chinakonzedwanso kamodzi, zaka zisanu zapitazo, motsutsana ndi zida zomwe sizinapezeke ku bungwe la dziko, sichisiyana kwenikweni ndi chida chosakonzedwanso - chimangokhala ndi chizindikiro chomwe chimapangitsa kuti chiwoneke mosiyana.
Chifukwa chake izi ndizofunikira kwambiri pamapulatifomu okhala ndi granite ndi miyala
Ma granite pamwamba ndi mapulatifomu oyezera molondola ndi chitsanzo chabwino cha komwe kutsata kumasiyidwa. Kusalala pa zinthuzi nthawi zambiri kumafotokozedwa motsutsana ndi muyezo wadziko lonse - DIN 876 ndi DIN 875 yaku Germany, American GGG-P-463C, JIS B 7513 yaku Japan, miyezo ya GB ya dziko lonse yaku China, BS 817 yaku Britain, kapena ma framework ofanana ku France ndi Russia. Muyezo uliwonse umatanthauzira kusinthasintha kovomerezeka kwa kusalala pakati pa kukula ndi magiredi osiyanasiyana a mbale (nthawi zambiri Giredi 00, Giredi 0, Giredi 1, Giredi 2). Mbale yolembedwa kuti "Giredi 0" ndi yopanda tanthauzo popanda zikalata za muyezo womwe unayesedwa, chida chiti chomwe chinayesa, komanso ngati kuwerengera kwa chipangizocho ndikosavuta kutsatira.
Apa ndi pomwe kusiyana pakati pa muyeso wa interferometer ndi cheke chowongolera cha makina kumakhala kwakukulu. Laser interferometer imatha kuthetsa kusinthasintha kwa flatness pamlingo wa nanometer ndipo imayesedwa yokha motsutsana ndi muyezo wa wavelength wa kuwala, womwe ungathe kutsatiridwa mwachindunji monga momwe muyeso umachitikira. Kuyerekeza kwa straightedge koyesedwa ndi manja kumakhala kwachangu komanso kotsika mtengo, koma kumakhala ndi gulu lalikulu losatsimikizika, ndipo ma laboratories odalirika nthawi zambiri amakhala otsimikiza za njira yomwe idagwiritsidwa ntchito pa satifiketi yoperekedwa.
Mndandanda waufupi wa ogula
Kwa aliyense amene akufotokozazida zolondola— nsanja za granite, zida za CMM, mabedi a zida zamakina — mafunso angapo ndi ofunika kufunsa kwa wogulitsa aliyense asanatenge chiwongola dzanja "choyesedwa" pamtengo weniweni:
- Ndi muyezo uti wadziko kapena wapadziko lonse womwe muyesowo unatsutsana nawo, ndipo kodi satifiketiyo imautchula momveka bwino?
- Ndi labu iti yomwe idapereka satifiketi yoyezera, ndipo kodi labuyo yokha ndi yovomerezeka ndi bungwe lodziwika bwino la metrology?
- Ndi chida chiti chomwe chinagwiritsidwa ntchito poyesa, ndipo kodi pali tsiku lowerengera ndi mbiri yolondola ya chida chimenecho?
- Kodi satifiketi ya gawo lodziwika bwino la manambala a serial ikutumizidwa, kapena chikalata chodziwika bwino cha mzere wa malonda?
Palibe chilichonse mwa izi chomwe ndi chidziwitso chachilendo — ogulitsa odalirika amapereka izi mwachizolowezi, nthawi zambiri popanda kufunsidwa kawiri. Nthawi zina zimakhala zovuta kupeza yankho lolunjika nthawi zambiri zimakhala zofunikira kusamala nazo.
Nthawi yotumizira: Julayi-02-2026