Yintoni na umgca? Ingcamango ubude, umzekelo zemilinganiselo

Kubonakala ngathi umgca onjalo? Isixhobo elula zokulinganisela ubude. Kwaye yintoni ulinganisa ngayo ebomini bethu! Ngaphandle kube nzima ukwenza umfundi, injineli, draftsman.

A incinane

Xa uhlobo oqhelekileyo, njengoko sasidla ukumbona, kudala ukususela Enkulu French Revolution. Oku ngaphezu kweminyaka engamakhulu amabini eyadlulayo. Kodwa ke ukwenzeka yayo ibhalwe umhla ixesha ngaphambi koko. Ngexesha kumbiwa kwisixeko samandulo ePompeii, abembi bezinto zakudala baye bafumana efanayo uluhlu iimpawu - zidityanisiwe iibhodi egudileyo.

Kwaye KumaXesha Aphakathi ungqina ukuba ubukho esi sixhobo emangalisayo, nto leyo yenza njengoko imbasa lead. Xa imivalo yesinyithi yamandulo Rus isetyenziswe kumlinganiselo.

Kakade ke, sinako ngoku kugweba ukuba ukusetyenziswa kwabo andiyithandi kakhulu, kodwa ke ibali ukuvela kunye nophuhliso emgceni.

izinto zokwakha Icacisa

Yintoni na umgca? Isixhobo eveza umgca othe ngqo kwi-moya ngenjongo yomlinganiselo lomhlaba. On emdeni wayo lwangaphandle iphawulwe iiyunithi, ezisetyenziswa ndlela kunye sentimitha, yaye umphathi IsiNgesi - inch.

Kokuba ezenziwe ngezinto ezahlukeneyo: iiplastiki (ukwahlula ziselubala kwaye zimnyama, luyaguquguquka kwaye ngqwabalala), paperboard, isinyithi kunye kwithishyu.

Ukuze limisele milinganiselo echanileyo ngakumbi yomgama kubhetele ukusebenzisa irula yesinyithi. Ngenxa kweplastiki itshiswe kwi utshintsho incinane mali yaye phantsi kwempembelelo iinkuni ukufuma kuyaphela ukudumba. umlawuli seplastikhi esitransparenti Kulula kakhulu ukuba ukusebenzisa, ekubeni ayenzi kuhlawula umfanekiso. Kodwa ke ngakumbi umzekelo ibala kweenkuni ofuna ukucocwa rhoqo bangangcolisi.

Metal umlawuli yenziwe oxwebhu kuhlinzwa kumphezulu olukhazimlisiweyo kwaye ekugqibeleni chrome leyo iyamelana umhlwa.

Ubude komgca

Xa sibonile ukuba lo mgca yomlinganiselo, kunokwenzeka ukuba ukuthetha ngobude balo.

Ngokutsho GOST, zomphezulu yayo lisetyenziswa isikali okhethekileyo. Kusenokuba ukusuka 150 ukuya kuma- 3000 mm. Okuninzi umgca imfuno, ubude bawo 300, 500 kunye 1000 mm.

Ngaphandle line efanayo, kufuneka ububanzi kumphezulu we-18 ukuya kuma-40 mm kuxhomekeka ubude. ubukhulu yabo enesiqingatha okanye nawethu enye. Bonke ezinamaphepha equidistant enye kwenye, ebabela izibetho ukuba ixabiso 1 mm.

Zero bar ke incopho yothelekiso kwizixhobo yokulinganisa. Oku ngesiqhelo ekwi ekupheleni ekhohlo lomgca kwaye igqalwa umlinganiselo terminal.

Kwi umlawuli metric inokubekwa akukho namnye, kodwa isikali ezimbini. Kukho ezinjalo izixhobo somlinganiselo apho ulwahlulo zero unelungelo nangasekhohlo.

Ngoko ke, waphumelela umphathi - i element esilula ukuzoba ziphawulwe isikali phezu kwalo, apho ukwazi ukwakha iimilo zejiyometri, ukwenza imilinganiselo yomgama kunye izibalo.

Inkqubo kwamanyathelo ezisetyenziswa kuluhlu metric

Imitha iyunithi inkulu zomlinganiselo, kunye nendima iiyunithi inkqubo metric angundoqo ke isentimitha. Enye imitha iisentimitha ezilikhulu.

ngokucandeka ezinkulu phantsi kwazo zilungiselelwe amaxabiso amanani ukubonisa iisentimitha (cm). Njengoko umthetho, ubude umgangatho umgca ezingamashumi amathathu cm. A umgama omkhulu phakathi kwamanqaku na sentimitha ngokulinganayo.

umgca oodwi ezincinane iindawo ekudluliseleni phakathi cimo ezinkulu, bamele iimilimitha. Enye isentimitha na omise ezilishumi (mm).

Makhe sihlolisise umzekelo umsebenzi njengoko 'ubude umgca Yalathisa ngepeni. " Indlela ukukwenza oko?

Isiphatho kufuneka sibekwe kwindawo eqinileyo, kwaye imilinganiselo ingenziwa nomlawuli.

Kuyimfuneko ukuba mabaqhoboshele umgca ukuya elunxwemeni oseleyo emphinini, kuya kufuneka ukuba uyilandele kumgangatho ekupheleni kunye Uziro. Oku kufuneka emileyo ngesandla sasekhohlo kunye nelungelo ukunyenyisa isikhundla ekupheleni isixhobo sokulinganisa.

amanani kakhulu sisondela ekupheleni into kulinganiswa, kwaye uya kuba ubude bayo. Masithi ukuba iisentimitha-15, yaye kwisahlulo encinane eseleyo, emva isiphelo yokugqibela kuphawulwa amanani, ezo zine, uya kuthetha iimilimitha. Ngoko ke, ukusingatha ubude 18.4 mm.

into Umlinganiselo ubude - indlela leyo ikhutshwa phandle isicelo kumgca into le. Yena, ke, kulinganiswa sithelekise ubude balo ukuba umlinganiselo ixabiso. Kuba ukususwa amanyathelo nomntu ukuthunga impahla, ukusebenzisa ngcono imitha, i-elastic band. Kulungile, ukuba ufuna umlinganiselo umgama omde, kulula kakhulu ukuba ukusebenzisa i umlinganiselo tape. Kwaye ekugqibeleni, yintoni na uluhlu metric? Isixhobo ukulinganisa apho readings zifundwa ukusuka ekhohlo ukuya ekunene. Inani afumaneka kwi ekunene, kuya kuqinisekisa ubude. Ubungqina obubonakalayo buxela abhalwe njenge fraction lokugqibela, isi-0.5 cm.