A multimeter, inozivikanwawo sevolt-ohm mamita, inonzi tester handheld inoshandiswa kupima magetsi emagetsi, ikozvino (kumera), kushorwa, uye mamwe maitiro. Multimeters inouya mumagariro ekufananidzira uye digital uye inobatsira pazvinhu zvose kubva kuongororo dzakaoma, kufanana nekuyera kwebheteri voltage, kuwona zvikanganiso uye zvakaoma kuongororwa. Icho chiri chimwe chezvinhu zvinoshandiswa nemagetsi kugadzirisa matambudziko emagetsi pamotokari, midziyo, madunhu, magetsi, uye masangano ekugadzira .
DIYers vanogonawo kudzidza kushandisa multimeter yezviyero zvepakati peimba.
Analog Multimeters
An multimeter analogog inogadziriswa ne microammeter (chigadziri chinotarisa nenyuchi, kana chiripo) uye ine nete inofamba pamusoro pechikwata chakapedza kudzidza. Analog multimeter haina mari shoma kudarika yavanoita digital asi inogona kuva yakaoma kune vamwe vashandisi kuverenga zvakarurama. Uyewo, inofanira kutarisirwa zvakanyatsonaka uye inogona kukuvadzwa kana ichinge yakadonhedzwa.
Analog multimeter kazhinji haisi yakarurama sey digital kana inoshandiswa sevoltmeter. Zvisinei, mifananidzo yeanalogog yakakura pakuona kuti zvishoma nezvishoma zvinokonzerwa nokuti iwe unogona kuona nheyo ichifamba pamusoro pezinga. Vayori veAnalog vanoshamisa kana vakagadzirirwa seammeters, nekuda kwekudzivirira kwavo pasi uye nekunze kwekunzwa, uye nezviyero kusvika ku 50μA (50 microamperes).
Digital Multimeters
Digital multimeter ndiyo inowanzoshandiswa iripo uye inosanganisira zvinyorwa zvakajeka uyewo zvakagadziriswa zvemagetsi ezvinjiniya.
Panzvimbo yekusimudza sora uye kuwedzera pamamita analogog, mamita digiti anopa kuverenga pane imwe svondo reCD. Vanowanzobhadhara kupfuura analogog multimeters, asi mutengo wemutengo hausi muduku pakati pezvinyorwa zvemashoko. Vatsva vanotsvaga vanodhura.
Digital multimeter zvinowanzove nani pane analogog mumhepo inoshanda, nemhaka yekumhanyisa kwakakwirira kwedhijithali.
Asi kune vakawanda vashandisi, kunyanya kubatsirwa kwevateri vedijiti ndiko kuverenga nyore nyore uye kuverenga uye yakarurama yakakwana yekuverenga.
Kushandisa Multimeter
Zvinonyanya kushanda uye kushanda kwehuwandu hwemastimeter zvakafanana kune vese vedhijitori uye vanofananidzira. Mucherechedzo ane maviri anotungamirira-tsvuku uye matema-uye matatu matheni. Izvo matema anotungamirira mapundu mukati "pamba" gungwa. Iyo mitsvuku inotungamirira mutsvuku mune imwe yemamwe mazambuko, zvichienderana nebasa raunoda. Mushure mokunge mavhara mumutungamiri, iwe unoshandura chipani mukati mejeri kuti usarudze basa uye zvakakodzera mararamiro emutambo chaiwo. Semuenzaniso, kana pfumo racho rakatarirwa ku20V DC, muedzo wacho achaona DC (yakananga ikozvino) voltage kusvika 20 volts. Kuti uone kuvhara kwechidiki, iwe unogona kuisa jira ku 2V kana 200mV mararamiro.
Kuti uite kuverenga, iwe unobata tsvina yakajeka mugumo weumwe neumwe unotungamirira kune imwe yemagetsi kana faira kuti uedzwe. Izvo simba (kana chimwe chinhu chinokosha) richaverengwa pane muedzo. Multimeter yakachengeteka kushandiswa pamatunhu nemagetsi anopa simba, zvichipa kuti magetsi kana ikozvino haapfuuri kuwedzerwa kwepamusoro kwemuedzo. Uyewo, usambobata zvigadziro zvesimbi zvesimbi zvinotungamirira kukuedzwa kwakasimba.
Multimeter Mabasa
Mamiririji anokwanisa kuverenga zvakasiyana-siyana, zvichienderana nemuenzaniso.
Vakawanda vanoedza vanoyera kupisa, kupisa, uye kusagadzikana uye kunogona kushandiswa kutarisa kuenderera mberi, kuedza kwakajeka kuongorora dunhu rakakwana. Mamwe mamitaji akafambira mberi anogona kuedza zvose zvinotevera:
- AC (kushandura ikozvino) magetsi uye amperage
- DC (yakananga ikozvino) voltage uye amperage
- Kurwisana (ohms)
- Unyanzvi (kureba)
- Kuzvibata (siemens)
- Decibels
- Duty cycle
- Frequency (Hz)
- Inductance (henrys)
- Kupisa Celsius kana Fahrenheit
Zvishandiso kana masheji anokosha anogona kuiswa kune mamwe maximeter kuti averengwezve, zvakadai se:
- Light level
- Acidity
- Alkalinity
- Wind speed
- Humidity Relative