Wani lokaci, lokacin aiki, yana iya zama dole ya daidaita ƙimar kowane ɓangare. A saboda wannan dalili, anyi amfani da kayan aiki na duniya - micrometer, wanda aka ƙaddamar da matsanancin girma na sashi tare da daidaituwa na 2 μm (0.002 mm). Gaba, la'akari da ba da misalin yadda za'a yi amfani da micrometer.
Na'urar micrometer na inji
Akwai nau'i biyu na micrometers: na inji da lantarki.
Na'urar micrometer na inji yana ɗaukar kasancewar waɗannan sassa:
- diddige - dakatarwa;
- micrometric dunƙule;
- Yarda kara da Threaded daji;
- wani drum a tsaye a tsaye a kan dunƙule;
- Alamar takarda;
- kwayar zobe;
- Sikeli biyu.
Gilasar ta juya a cikin ramin daji mai tsayi. Tare da taimakon gawar, ba a kalli kullun ba. Zai yiwu a gyara kullun a kowace matsayi tare da kwaya zobe.
Sikeli biyu, wanda aka samo a kan na'urar, an shirya su kamar haka. Na farko shine a kan kara kuma yana da farashin farashin 1 mm. Wannan sikelin ya kasu kashi biyu, tare da ƙaddarar žasa daga saman daga 0.5 mm. Wannan tsari yana taimakawa tsarin tsarin. A drum na juyawa yana da sikelin na biyu, wanda ke da kashi 50 tare da farashin 0.01 mm.
Yadda za a yi amfani da micrometer daidai?
Tun lokacin yin amfani da shi, an ƙaddamar da sikelin lokaci lokaci, an bada shawarar cewa an kirkiro kayan aiki kafin kowane aikace-aikacen. Anyi shi ne ta hanyar haka: zangon ya juya sosai kuma ya tabbatar cewa hadarin kwance a kan tushe daidai da zero alamar kango. Idan akwai rashin daidaituwa, ƙugiya tana tayar da maɓalli na musamman.
Don amfani da micrometer don manufar aunawa sashi, zangon yana juya ta juyawa da juji a nisa wanda zai dan kadan wuce girman girman. Yankin da za a aunawa yana kulla tsakanin sheƙản da kuma dunƙule. Don hana lalacewar ɓangaren, an ɗaure shi da ƙuƙwalwa. A wannan yanayin, ƙuƙwalwar yana haifar da sauti mai ma'ana lokacin da aka jawo. Sa'an nan kuma ƙara ƙarfin zobe.
Don ƙayyade girman ɓangaren, ƙara tare da ƙididdigar Sikeli guda biyu (ɓangarori biyu na sikelin farko a kan kara da sikelin ɗaya a kan guri). A saman ɓangare na sikelin kara, muna duban yawan mm. Idan haɗari a ƙananan ƙananan sikelin ƙara shine zuwa dama, to, ga darajar ɓangaren sama na sikelin ya zama dole don ƙara 0.5 mm. Don ƙimar da aka samu, mun ƙara ƙidaya daga sikelin a kan gumi, tare da farashin raba farashin 0.01 mm.
Yadda za a yi amfani da micrometer daidai - misali na auna
Ka yi la'akari da misali na cikakken auna na diamita mai auna, wanda girman girmansa ya kai 5.8 mm. An yi raguwa tsakanin tsattsauran kafa da tsinkaye ta yin amfani da bindiga. Bugu da ari, ana yin karatun na'urar.
Dubi saman sikelin a kan kara. Matsayinta zai zama 5 mm. Mun ƙayyade matsayi na halayen da ake gani na ƙananan ɓangaren ƙananan sikelin. Zai zama dama, don haka mu
Na gaba, dubi sikelin a kan katako, wanda ya nuna mana darajar 0.28 mm. Ƙara waɗannan bayanai zuwa sikelin kara kuma samun 5,5 mm + 0.28 mm = 5.78 mm.
Daidai diamita na rawar soja zai zama 5.78 mm.
Saboda haka, na'urar micrometer zai taimake ka ka auna wani abu ko raba tare da daidaitattun iyaka. Idan ba ku da isasshen girman da za ku iya samu tare da mai mulki ko caliper , kuna da damar da za ku yi amfani da micrometer kuma ku sami girma tare da daidaito na 0.002 mm.