Me pēhea te whiriwhiri i ngā tohu tika o te papatahi mō ngā pereti mata karāhe

I te wā e whiriwhiri ana i tētahi pereti mata tino tika o te karāhe, ko tētahi o ngā mea nui hei whakaaroaro ko tōna taumata tika o te papatahi. Ko ēnei tohu—e tohuhia ana ko te Tohu 00, Tohu 0, me te Tohu 1—ka whakatau i te tika o te hanga o te mata, nō reira, me pēhea te pai mō ngā momo tono i roto i te hanga, te ine ine, me te tirotiro mīhini.

1. Te Mārama ki ngā Tohu Tika o te Papatahi
Ko te tohu tika o te pereti mata karāhe e whakatau ana i te rerekētanga e whakaaetia ana mai i te papatahi tino tika puta noa i tōna mata mahi.

• Taumata 00 (Taumata Taiwhanga): Ko te tino tika, e whakamahia ana mō ngā taiwhanga whakatikatika, ngā mīhini ine taunga (CMM), ngā taputapu whatu, me ngā taiao tirotiro tino tika.

• Tau 0 (Tau Arowhai): He pai mō te ine tika i roto i te awheawhe me te tirotiro i ngā wāhanga mīhini. He tino tika, he pumau hoki mō te nuinga o ngā tukanga whakahaere kounga ahumahi.

• Taumata 1 (Taumata Awheawhe): He mea tino pai mō ngā mahi miihini whānui, te huihuinga, me ngā mahi ine ahumahi ina he tika te āhua.

2. Te Whakatau i te Papatahi
Ko te ātete papatahi o te pereti karāhe ka whakawhirinaki ki tōna rahi me tōna taumata. Hei tauira, ko te pereti 1000×1000 mm Tau 00 ka taea te ātete papatahi i roto i te 3 maikorona, ko te rahi ōrite i te Tau 1 ka taea te tata ki te 10 maikorona. Ka tutukihia ēnei ātete mā te whakapiri ā-ringa me te whakamātautau tika anō mā te whakamahi i ngā autocollimators, i ngā taumata hiko rānei.

3. Te Kōwhiri i te Tohu Tika mō tō Ahumahi

• Ngā Taiwhanga Ine Ira: Me whai pereti Tau 00 hei whakarite i te āheinga ki te whai me te tino tika.

• Ngā Wheketere Utauta Mīhini me te Huihuinga Taputapu: He mea noa te whakamahi i ngā pereti Tau 0 mō te whakarite me te whakamātautau i ngā wāhanga tino tika.

• Ngā Awheawhe Hanga Whānui: Ko ngā pereti Taumata 1 te nuinga o te wā e whakamahia ana mō te whakatakotoranga, te tohu, ngā mahi tirotiro matapōkere rānei.

4. Taunakitanga Ngaio
I ZHHIMG, he mea hanga ia pereti mata karāhe mai i te karāhe pango kounga teitei, he tino pakari, he tino pumau hoki. Ka waruhia ia pereti e te ringa, ka whakatikatikaina i roto i te taiao whakahaeretia, ā, ka whakamanahia kia rite ki ngā paerewa o te ao pēnei i te DIN 876, GB/T 20428 rānei. Mā te whiriwhiri i te taumata tika ka whakarite i te tika o te ine me te roa o te wā me te mahi.