1. Karma gami

An yi ƙarfen Karma da jan ƙarfe, nickel, Aluminum da Iron a matsayin manyan abubuwan haɗin. Resistance ɗin ya fi MENTONG sau 2-3. Yana da ƙarancin juriyar zafin jiki (TCR), ƙarancin EMF na zafi idan aka kwatanta da jan ƙarfe, kyakkyawan juriya na dindindin na dogon lokaci da kuma ƙarfin hana iskar oxygen. Yanayin zafin aiki nasa ya fi faɗi fiye da MENTONG (-60~300ºC). Ya dace da yin abubuwa masu juriya da ƙarfi.

2. Girman Karma

Waya: 0.01mm-10mm
Ribbon: 0.05*0.2mm-2.0*6.0mm
Zaren: 0.5*5.0mm-5.0*250mm
3. Siffofi na musamman na wayar juriya ta Karma

1) Farawa da waya mai zafi ta lantarki ta Nickel Chromium Class 1, mun maye gurbin wasu daga cikin Ni da
Al da sauran abubuwa, don haka sun cimma daidaiton kayan juriya tare da ingantaccen kayan aiki
ma'aunin zafin jiki na juriya da ƙarfin lantarki na zafi akan jan ƙarfe.
Tare da ƙarin Al, mun sami nasarar ƙara juriyar girma sau 1.2 fiye da da.
fiye da waya mai zafi ta lantarki ta Nickel Chromium Class 1 da ƙarfin juriya sau 1.3.

2) Ma'aunin zafin jiki na biyu na waya Karmalloy KMW ƙanƙanta ne, - 0.03 × 10-6/ K2,

kuma lanƙwasa zafin juriya ya zama kusan layi madaidaiciya a cikin faɗi
kewayon zafin jiki.

Saboda haka, an saita ma'aunin zafin jiki don zama matsakaicin ma'aunin zafin jiki tsakanin
23 ~ 53 °C, amma 1 × 10-6/K, matsakaicin ma'aunin zafin jiki tsakanin 0 ~ 100 °C, shi ma yana iya
a yi amfani da shi don ma'aunin zafin jiki.

3) Ƙarfin lantarki da ke kan jan ƙarfe tsakanin 1 ~ 100 °C shi ma ƙarami ne, ƙasa da + 2 μV/K, kuma

yana nuna kyakkyawan kwanciyar hankali tsawon shekaru da yawa.

4) Idan za a yi amfani da wannan a matsayin kayan juriya na daidai, maganin zafi mai ƙarancin zafi shine
ana buƙatar kawar da karkacewar sarrafawa kamar yadda yake a yanayin wayar Manganin CMW.