Misalai Ohmmeter?

Zai na da Ohmmeter?

Takaitar Ohmmeter

Ohmmeter yana nufin karamin yanayi mai yiwuwar da tsarin kayan adadin amfani don yaɗa jirgin ruwa.

Abubuwan Ohmmeter

Series Type Ohmmeter

An rarrabe ohmmeter da batari, sira mai yaduwa, da kuma karamin yanayi. An rarrabe abubuwan da za su iya duba da ita a terminal OB. Idan an kammala cikin ziyarta, yaɗa ya faru, kuma karamin yanayi ya baka bayanin da yaɗa ta faru.

Idan abubuwan da za su iya duba mafi yawa, yaɗa a cikin ziyarta ce mafi kyau, kuma bayanin karfin da za su iya duba ta shafi da take daidai.Idan abubuwan da za su iya duba ba, karamin yanayi ya baka bayanin zero, wanda ya nuna abubuwan da za su iya duba ba.

D’Arsonval Movement

D’Arsonval movement ana amfani a cikin karamin yanayi masu DC. Idan an rarrabe karamin yanayi a cikin maƙafta mai magana, yaɗa ta faru. Wannan harshen yaɗa ta faru ne wanda ya baka bayanin da yaɗa ta faru.

Wannan karamin yanayi na nufin da kaɗansu mai magana da karamin yanayi mai yiwuwar da ita. Karamin yanayi na iya ɗaya ko kuli. Ana amfani da kaɗansu mai magana don in ba da maƙafta mai magana mai yawa.

Saboda maƙafta mai magana mai yawa, wannan karamin yanayi na iya baka bayanin da yaɗa ta faru. Yaɗa ta faru an samun da duwatsu, dukata da gaba, da kuma gaba.

Idan ƙarin yaɗa ta faru a cikin wannan karamin yanayi, wannan karamin yanayi na iya baka bayanin da yaɗa ta faru. Saboda haka, karamin yanayi na iya baka bayanin da yaɗa ta faru a cikin DC kawai.

Don in ƙara bayanin da yaɗa ta faru, ana amfani da damping wanda ya ba da harshen sama da kuma karamin yanayi. Duk da haka, karamin yanayi na iya baka bayanin da yaɗa ta faru.Bayanin da yaɗa ta faru an samun daga mirror, wanda yaɗa ta faru ta baka bayanin da yaɗa ta faru.

Akwai abubuwa da suka so da a yi amfani da D’Arsonval type instrument. Su ne-

• Su da scale mai zurfi.

• Effective eddy current damping.

• Kudin kula mai yawa.

• Ba su da hysteresis loss.

• Ba su biyan kuɗi.

Amma suna da muhimmanci da ke ciki, suke da muhimmanci da ke ciki kamar:

• Ba zai iya amfani a cikin AC systems (DC kawai)

• Mafi zuwa cewa da MI instruments.

• Yana iya kasance error saboda aging of springs, saboda haka ba zan iya samun bayanin daidai ba.

Amma idan muna iya duba abubuwan da za su iya duba, muna iya amfani da PMMC instruments, kuma muna iya sarrafa abubuwan da za su iya duba da 1.6 don in samun AC resistance, saboda haka, wannan karamin yanayi na iya amfani da shi daidai saboda abubuwan da suke da muhimmanci. Abubuwan da suke da muhimmanci na iya kawo da abubuwan da suke da muhimmanci, saboda haka, muna iya amfani da shi.

Series type Ohmmeter

Series type ohmmeter na nufin da kaɗansu mai yaduwa R1, Zero adjusting resistor R2, EMF source E, Internal resistance of D’Arsonval movement Rm, da kuma abubuwan da za su iya duba R. Idan ba a duba abubuwan ba, yaɗa ta faru a cikin ziyarta ce mafi kyau, kuma karamin yanayi ya baka bayanin da yaɗa ta faru.Don in ƙara R2, karamin yanayi ya ƙara bayanin da yaɗa ta faru, saboda abubuwan da za su iya duba ba a lokacin. Bayanin da yaɗa ta faru ta shafi da zero. Idan an kammala terminal AB, yaɗa ta faru a cikin ziyarta ce mafi kyau, kuma karamin yanayi ya baka bayanin da yaɗa ta faru.

Saboda haka, abubuwan da za su iya duba a cikin zero da kuma mafi yawa na iya amfani da shi. Idan muna iya duba abubuwan, yaɗa ta faru a cikin ziyarta ce mafi kyau, kuma karamin yanayi ya baka bayanin da yaɗa ta faru.

Wannan tushen yana da muhimmanci, amma akwai muhimmanci da ke ciki kamar ƙarin batari, saboda haka, muna iya ƙara R2. Karamin yanayi ba zai iya baka bayanin da yaɗa ta faru, saboda haka, muna iya amfani da adjustable resistance connected in series with the battery.

Shunt Type Ohmmeter

A cikin wannan karamin yanayi, muna iya amfani da batari source da kuma adjustable resistor connected in series with the source. Muna iya rarrabe karamin yanayi parallel to the resistance which is to be measured. Akwai switch wanda muna iya amfani don in kammala ko kammala cikin ziyarta.

Switch na iya kammala idan ba a amfani ba. Idan abubuwan da za su iya duba ba, muna iya kammala terminals A and F, saboda haka, yaɗa ta faru a cikin karamin yanayi ce zero. Bayanin da yaɗa ta faru ta shafi da zero.

Idan abubuwan da za su iya duba mafi yawa, yaɗa ta faru a cikin terminal AF ce mafi kyau, kuma full-scale current an samu a cikin karamin yanayi. Don in ƙara series resistance connected with the battery, muna iya ƙara R2.

Saboda haka, full-scale deflection measures very high resistance. Idan muna iya duba abubuwan a cikin A and F, karamin yanayi ya baka bayanin da yaɗa ta faru, kuma muna iya amfani da shi don in samun abubuwan da za su iya duba.

A cikin wannan karamin yanayi, muna iya samun problem da batari, saboda haka, muna iya ƙara R2. Karamin yanayi na iya baka error saboda repeated use.

Multi-Range Ohmmeter

Wannan karamin yanayi na iya amfani da range mai yawa. A cikin wannan, muna iya zaba range switch according to our requirements. An amfani da adjuster don in ƙara initial reading to be zero.

Abubuwan da za su iya duba an rarrabe parallel to the meter. Karamin yanayi an ƙara don in baka full-scale deflection when the terminals in which the resistance connected is full-scale range through the range switch.

Idan abubuwan da za su iya duba zero ko short circuit, ba a baka yaɗa ta faru a cikin karamin yanayi, kuma ba a baka deflection. Idan muna iya duba abubuwan da take da 1 ohm, muna iya zaba range switch at the 1-ohm range at first.

Sannan muna iya rarrabe abubuwan parallel, kuma muna iya amfani da corresponding meter deflection. For 1 ohm resistance, it shows full-scale deflection but for the resistance other than 1 ohm it shows a deflection which is less than the full load value, and hence resistance can be measured.

Wannan shine tushen da ya fi dace da duka ohmmeters, saboda muna iya samun bayanin daidai a cikin wannan karamin yanayi. Saboda haka, wannan karamin yanayi na iya amfani da shi daidai a yanzu.