Na'urar firikwensin zafin jiki siffa ce ta gama gari a cikin kewayon na'urori masu yawa don taimakawa kula da yanayin zafin aiki a cikin da'irori.Siffa ce mai amfani a aikace-aikace masu alaƙa da sarrafa sinadarai, na'urorin likitanci, rukunin sarrafa abinci da sarrafa muhalli na tsarin AC.Na'urar da aka fi sani da ita ita ce ma'aunin zafi da sanyio, wanda ke da amfani don saurin auna zafin ruwa zuwa daskararru.
Anan akwai shahararrun nau'ikan firikwensin zafin jiki guda huɗu:
Thermocouple
Na'urar firikwensin thermocouple ita ce mafi shaharar hanya don auna zafin jiki.Yana da fa'idodi iri-iri, kamar mai sarrafa kansa, mai arha kuma maras tsada sosai.Irin wannan firikwensin yana aiki ta hanyar auna canje-canje da ke faruwa a cikin ƙarfin lantarki kuma yana aiki akan ka'idar tasirin thermo-lantarki.Yawanci ana kiyaye shi da ƙarfe ko garkuwar yumbu don ƙara ƙarfin aiki a cikin yanayi masu wahala.
Resistor Temperature Detector
Mai gano zafin jiki na resistor (RTD) yana da ikon bayar da ingantaccen bayanai.An gina ainihin firikwensin a cikin kayan sawa masu wuya da yawa, kamar jan ƙarfe, nickel da platinum.Wannan yana ba da damar yin aiki a cikin kewayon zafin jiki mai faɗi wanda zai iya bambanta daga -270 ° C zuwa + 850 ° C. Har ila yau, irin wannan firikwensin dole ne a haɗa shi tare da halin yanzu na waje don yin aiki zuwa mafi kyawun damarsa.
Thermistor
Thermistor wani nau'in firikwensin ƙari ne mai sauƙin amfani, mai yawa kuma maras tsada.Yana da ikon daidaita juriya lokacin da aka gano canjin yanayin zafi.Ana yin wannan firikwensin zafin jiki a cikin kayan yumbu kamar nickel da manganese, wanda zai iya barin su cikin haɗarin lalacewa.Siffa mai fa'ida ita ce ikon samun mafi girman hankali idan aka kwatanta da RTD.
Thermometer
Ma'aunin zafin jiki zaɓi ne mai amfani don auna zafin iskar gas, ruwa ko daskararru.Yana riƙe da barasa ko ruwan mercury a cikin bututun gilashi wanda zai fara ƙara girma lokacin da zafin jiki ya fara tashi.Bututun gilashin da ke riƙe ruwan ana yi masa alama da ma'auni mai ƙima don nuna ƙarara ko faɗuwar zafin jiki.Hakanan, ana yin rikodin yanayin cikin sauƙi a cikin ma'auni da yawa, gami da Celsius, Kelvin da Fahrenheit.
Gabaɗaya, akwai nau'ikan na'urori masu auna zafin jiki daban-daban a kasuwa.Yana da mahimmanci a yi amfani da madaidaicin firikwensin don dacewa da aikace-aikacen saboda daidaito na iya bambanta da zaɓi daban-daban.Na'urar firikwensin da ba a zaɓa ba zai iya haifar da rashin aiki na na'ura saboda an ƙyale zafin jiki ya karu ba tare da an yi gargaɗin da ya dace ba.