Multimeter vs Ohmmeter: Ndeipi Yakakodzera Iwe?

Magetsi mayuniti anoita basa rakakosha muhupenyu hwedu hwemazuva ese uye vazhinji vedu hatizvizive. Nekudaro, kana iwe uri mumwe munhu anoshandisa nguva yako achishanda nemagetsi, saka kuziva mayunitsi anobatanidzwa uye mashandisirwo awo kwakakosha. Imwe yemayuniti anowanzo kuyerwa mumidziyo yemagetsi kuramba, uye izvi ndizvo zvinoshandiswa neohmmeter. Nekudaro, iwe unogona zvakare kunge uchishanda pane yakaoma purojekiti inoda zvinopfuura kungopikiswa zviyero.

Mamwe mayuniti ekuyera akangoita seanowanzo kuyerwa anosanganisira voltage, AC/DC, tembiricha, uye kuenderera mberi. Mumamiriro ezvinhu akadaro, mita ine maitiro akawanda ekuona kana "multimeter" yaizodiwa. Sezvineiwo, vanhu vazhinji havanzwisise musiyano uripo pakati pavo, kunyangwe vanoshanda navo. Gwaro iri richakubatsira kujekesa zvinhu, saka ramba uchiverenga.

Mhando dze multimeters

A multimeter chishandiso chinopa huwandu hwakawanda hwesarudzo seyakajairwa. Izvi zvinoita kuti zvive nyore kuti vashandisi vasarudze pavanenge vachitenga sezvo vachingoda kusarudza mita inoenderana nezvavanoda. Mamita mazhinji anouya ane mashoma ekutanga mayuniti, asi kune dzimwe sarudzo dzepamberi dzinopawo zviyero zvishoma. Chaizvoizvo, kune marudzi maviri chete e-multimeters: analog multimeters uye digital multimeters. (1)

Iyo analog multimeter, inoonekwa seyakachipa pazviviri izvi, ine museve dot (analogi mita) pamusoro pechiyero chakadhindwa chekuyera. Izvi hazviwanzo kushandiswa zvakare sezvo kushandiswa kwavo kuchigona kunetsa uye kunogona kunge kusiri iko chaiko. Iyo chete yekushandisa kesi kwavanovhenekera ndeye kana iwe uchida kuyera diki shanduko muzviyero, sezvo kufamba kwemuseve kunogona kutora kunyangwe shanduko diki. Analog multimeters zvakare yakachipa uye yakavakirwa pane microammeter. Heino dzidziso yevatangi vekuverenga analog multimeter.

Mudziyo uyu, unonzi digital multimeter kana digital multimeter, unotakurwa nenyanzvi dzese dzemagetsi nema technicians. Sezvo ari madhijitari, izvi zvinoreva kuti unogona kuzviwana neLCD kuratidza pane museve. Vanopa zviyero zvakaringana uye vanouya mune akati wandei akasiyana ekuyera sarudzo. (2)

Cen-Tech uye Astroai ndiwo maviri eanotungamira edhijitari multimeter mhando pamusika nhasi. Unogona kutarisa kuongorora kwayo kuzere kuti uone kuti ndeipi yakakunakira.

Ohmmeter mhando

Kune marudzi matatu makuru emaohmmeters: akatevedzana ohmmeters, multirange ohmmeters, uye shunt ohmmeters. Ose anoshandiswa kuyera kuramba, uye heino mashandiro anoita rimwe nerimwe.

Kune iyi ohmmeter, chikamu chaunoda kuyera kupikisa kunofanirwa kuve kwakabatana munhevedzano nemamita. Chishandiso chinoshanda nekupfuura ikozvino kuburikidza nedunhu, uye kushorwa kwakawedzerwa nechikamu kunoderedza kuyerwa kubva zero kusvika zero. Infinity inomiririra kuyerera kwemahara, uye iyo yepedyo kukosha ndeye zero, iyo yakanyanya kushorwa iripo mudunhu.

Iyi mhando yeohmmeter inoda kuti chikamu chibatanidzwe nebhatiri mukuwirirana, uye kuramba kunoratidzwa nemuseve unonongedza kuruboshwe. Iyo mita iri nyore uye haipe mapoinzi kuyerwa kweazvino kana infinity.

Iyi irefu yakareba ohmmeter ine zvakare ine regulator kuti ikubatsire kuchinja huwandu kuti huenderane nezvido zvako. Muchiitiko ichi, chikamu chekuyeresa chakabatana chakafanana nemamita, uye chinongedzo chinogona kuratidza kukosha kwekupikisa kunoshandiswa.

Musiyano uripo pakati multimeter uye ohmmeter

Tafura inotevera inopa mimwe misiyano yakakosha pakati peohmmeter uye multimeter.

multimeter	ohmmeter
Multimeter inogona kuita basa rakafanana neohmmeter uye kuyera mamwe mayunitsi akadai se frequency, tembiricha, voltage, capacitance, nezvimwe.	Iyo chete unit yakayerwa neohmmeter ndeye kuramba uye kuenderera.
Multimeters inowanzove inodhura, uye zvichienderana nekushanda, inogona kuwana inodhura.	Ohmeters yakachipa zvakanyanya nekuda kwekuita kwavo kushoma.
Multimeters dzakanyanya kurongeka nekuda kwekutenderera kwavo uye chokwadi chekuti vanogona kuita zviyero zvedhijitari.	Ohmmeter kurongeka hakuna kunaka, kunyanya nekuda kweiyo analog dhizaini.

Multimeter vs ohmmeter: ndiani achakunda?

Zviri pachena kuti kubva pakushanda kwekuona, multimeter ine zvakawanda zvikwanisiro kupfuura ohmmeter. Nekudaro, kana kuramba uye kuenderera zvese zvauri hanya nazvo uye kuyerwa uye kurongeka haisi nyaya, saka ohmmeter inogona kunge iri yakanakira sarudzo kwauri. Nekudaro, kune yekupedzisira inoshanda chiitiko, iwe unofanirwa kusarudza iyo multimeter ine dijitari metres.

kurumbidza

(1) zvikamu zvekutanga zvekuyera - https://www.britannica.com/video/

214818 / Chii chinonzi SI-overview-international-system-of-units

(2) Chiratidziro cheLCD - https://electronics.howstuffworks.com/lcd.htm