Duk yana farawa da firikwensin. Sabanin ma'aunin zafi da sanyio mai cika ruwa da ma'aunin zafin jiki bi-metal, ma'aunin zafin jiki na dijital yana buƙatar firikwensin.
Waɗannan na'urori masu auna firikwensin duk suna samar da ko dai ƙarfin lantarki, na yanzu, ko canjin juriya lokacin da canjin zafin jiki ya kasance. Waɗannan sigina ne na 'analog' sabanin siginonin dijital. Ana iya amfani da su don ɗaukar karatun zafin jiki a baki, dubura, ko hammata.
Ma'aunin zafi da sanyio na lantarki suna aiki ta wata hanya dabam dabam zuwa na'urori masu amfani da layukan mercury ko masu nuni. Sun dogara ne akan ra'ayin cewa juriyar wani ƙarfe (sauƙin da wutar lantarki ke gudana ta cikinsa) yana canzawa yayin da yanayin zafi ya canza. Yayin da karafa ke daɗa zafi, atom na ƙara girgiza a cikin su, yana da wuya wutar lantarki ta gudana, kuma juriya tana ƙaruwa. Hakazalika, yayin da karafa suka yi sanyi, electrons suna motsawa cikin 'yanci kuma juriya ta ragu.
Abin da ke ƙasa shine babban ingancin mu sanannen ma'aunin zafin jiki na dijital don bayanin ku:
