Multimeter vs Ohmmeter: ʻO wai ka mea kūpono iā ʻoe?

He kuleana koʻikoʻi nā ʻāpana uila i ko mākou ola i kēlā me kēia lā a ʻaʻole ʻike ka hapa nui o mākou. Eia nō naʻe, inā he kanaka ʻoe e hoʻolilo i kou manawa e hana me ka uila, a laila ʻike i nā ʻāpana e pili ana a pehea e hoʻohana ai ia mau mea koʻikoʻi. ʻO kekahi o nā ʻāpana i ana pinepine ʻia i nā mea uila ʻo ke kūʻē, a ʻo ia ka mea e hoʻohana ʻia ai ka ohmmeter. Eia nō naʻe, ke hana nei paha ʻoe i kahi papahana paʻakikī e koi ana ma mua o ke ana kūʻē.

ʻO nā ʻāpana ʻē aʻe i ana pinepine ʻia e pili ana i ka volta, AC/DC, wela, a me ka hoʻomau. Ma ia ʻano, pono e koi ʻia kahi mika me nā mana ʻike he nui a i ʻole "multimeter". ʻO ka mea pōʻino, nui ka poʻe ʻaʻole maopopo i ka ʻokoʻa ma waena o lākou, ʻoiai lākou e hana pū me lākou. E kōkua kēia alakaʻi iā ʻoe e hoʻomaʻemaʻe i nā mea, no laila e hoʻomau i ka heluhelu.

Nā ʻano multimeter

ʻO ka multimeter kahi hāmeʻa e hāʻawi ana i kahi ākea o nā koho e like me ke kūlana. He mea maʻalahi kēia i nā mea hoʻohana ke koho i ke kūʻai ʻana no ka mea pono lākou e koho i ka mika i kūpono i kā lākou makemake. Hele mai ka hapa nui o nā mika me kekahi mau ʻāpana kumu, akā aia kekahi mau koho holomua e hāʻawi pū ana i nā ana maʻamau. ʻO ka maʻamau, ʻelua wale nō ʻano o nā multimeters: analog multimeters a me digital multimeters. (1)

ʻO ka multimeter analog, i manaʻo ʻia he ʻoi aku ka liʻiliʻi o nā mea ʻelua, he kiko pua (mika analog) ma luna o ke ana ana i pai ʻia. ʻAʻole hoʻohana hou ʻia kēia ma muli o ka pilikia o kā lākou hoʻohana ʻana a hiki ke pololei ʻole. ʻO ka hihia hoʻohana wale nō kahi e hoʻomālamalama ai ʻo ia ke ana ʻana i nā loli liʻiliʻi i nā ana, no ka mea, hiki i ka neʻe ʻana o ka pua ke kiʻi i nā loli liʻiliʻi loa. He mea maʻalahi hoʻi nā multimeter analog a ua hoʻokumu ʻia ma kahi microammeter. Eia ke kumu aʻo no ka poʻe hoʻomaka i ka heluhelu ʻana i ka multimeter analog.

ʻO kēia mea, i kapa ʻia he digital multimeter a i ʻole digital multimeter, lawe ʻia e nā mea uila a me nā ʻenehana loea. No ka mea he mau helu helu kikohoʻe lākou, ʻo ia ka mea hiki iā ʻoe ke kiʻi iā lākou me kahi hōʻike LCD ma mua o ka pua. Hāʻawi lākou i nā ana kūpono a hele mai i nā koho ana like ʻole. (2)

ʻO Cen-Tech a me Astroai ʻelua o nā hōʻailona multimeter digital nui ma ka mākeke i kēia lā. Hiki iā ʻoe ke nānā i kāna loiloi piha e ʻike i ka mea maikaʻi loa iā ʻoe.

ʻAno ohmmeter

ʻEkolu ʻano nui o ka ohmmeters: series ohmmeters, multirange ohmmeters, a me shunt ohmmeters. Hoʻohana ʻia lākou a pau e ana i ke kūʻē, a eia ke ʻano o ka hana ʻana o kēlā me kēia.

No kēia ohmmeter, pono e hoʻopili ʻia ka ʻāpana nona ke kūpaʻa āu e ana e ana me ka mika. Ke hana nei ka mea hana ma ke kahe ʻana i kēia manawa ma ke kaapuni, a ʻo ke kūʻē ʻana i hoʻohui ʻia e ka ʻāpana e hōʻemi i ke ana mai ka ʻole a i ka ʻole. Hōʻike ka Infinity i ke kahe manuahi, a ʻoi aku ka kokoke o ka waiwai i ka zero, ʻoi aku ka nui o ke kūʻē ʻana ma ke kaapuni.

Pono kēia ʻano ohmmeter e hoʻopili ʻia ka ʻāpana i kahi pākaukau ma ke ʻano like, a hōʻike ʻia ke kūpaʻa me kahi pua e kuhikuhi ana i ka hema. He mea maʻalahi ka mita a ʻaʻole hāʻawi i nā ana kiko o kēia manawa a i ʻole ka palena ʻole.

ʻO kēia kahi ohmmeter lōʻihi a loaʻa pū kekahi mea hoʻoponopono e kōkua iā ʻoe e hoʻololi i ka laulā e kūpono i kāu mau pono. Ma keia hihia, pili ka mea ana i ka like me ka mita, a hiki i ka mea kuhikuhi ke kuhikuhi i ka waiwai kue i hoohanaia.

Ka ʻokoʻa ma waena o multimeter a me ka ohmmeter

Hōʻike ka papa ma lalo nei i kekahi o nā ʻokoʻa nui ma waena o ka ohmmeter a me ka multimeter.

multimeter	ohmmeter
Hiki i ka multimeter ke hana i ka hana like me ka ohmmeter a ana i nā ʻāpana ʻē aʻe e like me ke alapine, ka mahana, ka uila, ka capacitance, etc.	ʻO ka ʻāpana wale nō i ana ʻia e ka ohmmeter ʻo ke kūpaʻa a me ka hoʻomau.
ʻOi aku ke kumukūʻai o nā multimeters, a ma muli o ka hana, hiki ke piʻi nui.	ʻOi aku ka liʻiliʻi o nā Ohmmeters ma muli o kā lākou hana liʻiliʻi.
ʻOi aku ka pololei o nā multimeters ma muli o kā lākou circuitry a me ka hiki iā lākou ke lawe i nā ana kikohoʻe.	ʻAʻole maikaʻi ka pololei o Ohmmeter, ʻoi aku ma muli o ka hoʻolālā analog.

Multimeter vs ohmmeter: ʻo wai ka lanakila?

Ua akaka mai ka manaʻo hana, ʻoi aku ka nui o ka mana o ka multimeter ma mua o ka ohmmeter. Eia nō naʻe, inā ʻo ke kūʻē a me ka hoʻomau ka mea āu e mālama ai a ʻaʻole pilikia ke ana a me ka pololei, a laila ʻo ka ohmmeter ke koho maikaʻi loa iā ʻoe. Eia naʻe, no ka ʻike hana hope loa, pono ʻoe e koho i kahi multimeter me nā mika kikohoʻe.

koi

(1) nā ʻāpana kumu o ke ana - https://www.britannica.com/video/

214818/He aha nā SI-overview-international-system-of-units

(2) Hōʻike LCD — https://electronics.howstuffworks.com/lcd.htm