Menene thermostat?
Masu kula da yanayin zafi suna da sunaye iri-iri, kamar masu sarrafa zafin jiki, masu kare zafin jiki da masu kula da zafin jiki.Bisa ga ka'idar aiki, ana iya raba shi zuwa nau'in tsalle-tsalle, nau'in thermostat, nau'in ma'aunin zafi da sanyio, nau'in ma'aunin zafi da lantarki.A cikin kayan sarrafa masana'antu na zamani, ma'aunin zafin jiki na dijital shine nau'in da aka fi amfani dashi.Dangane da tsarin, ana iya raba mai sarrafa zafin jiki zuwa haɗaɗɗen mai sarrafa zafin jiki da mai sarrafa zafin jiki na zamani.
Menene ma'aunin zafi da sanyio?
Jikin auna zafin jiki wani sashe ne da ke canza siginar zafin jiki zuwa siginar lantarki, kuma yawanci ana sanya shi a cikin sashin gano abin da aka sarrafa don lura da ƙimar zafinsa.A fagen sarrafa masana'antu, ma'aunin zafi da sanyio na yau da kullun da ake amfani da su sun haɗa da ma'aunin zafi da sanyio, masu tsayayyar zafin jiki, thermistors da na'urori masu auna firikwensin da ba su da alaƙa.Daga cikin su, ukun farko sune ma'aunin zafi da sanyio.
1. Thermocouple
Ka'idar auna zafin jiki don thermocouples yana dogara ne akan tasirin Seeebeck (tasirin thermoelectric).Lokacin da ƙarfe biyu na kayan daban-daban (yawanci masu gudanarwa ko semiconductor, irin su platinum-rhodium, nickel-chromium-nickel-silicon da sauran kayan haɗin gwiwa) sun samar da rufaffiyar madauki kuma suna amfani da yanayin zafi daban-daban zuwa ƙarshen haɗin haɗin su biyu, ana haifar da ƙarfin lantarki a tsakanin. Karfe biyu.Irin wannan madauki ana kiransa “thermocouple,” yayin da karafa biyu ake kira da “thermal electrode,” kuma sakamakon da ake samu na electromotive ana kiransa da “thermoelectric motive force”.Thermocouples ana siffanta su ta faffadan ma'aunin zafin jiki, saurin amsawar zafi, da juriya mai ƙarfi.
2. thermal juriya
Juriya na thermal wani abu ne da ke juyar da siginar zafin jiki zuwa siginar lantarki, kuma ƙa'idar aikinsa ta dogara ne akan halayen juriya na ƙarfe da yanayin zafi.Musamman, thermal resistors suna amfani da wannan kayan na ƙarfe don auna zafin jiki.
A cikin sarrafa masana'antu, nau'ikan juriya na thermal da aka saba amfani da su sun haɗa da platinum, jan ƙarfe da nickel.Daga cikin su, juriya na platinum shine wanda ya fi kowa.Juriya na thermal yana da halaye na madaidaiciyar yanayin zafin jiki mai kyau, aikin barga da babban madaidaici a fagen yanayin zafin jiki na al'ada.Sabili da haka, a cikin yanayin aikace-aikacen matsakaicin zafin jiki, babu girgizawa da madaidaicin buƙatun, yawanci ana fifita amfani da juriya na platinum.
3. Thermistor
Thermistor wani sashi ne da ke juyar da siginar zafin jiki zuwa siginar lantarki, kuma ƙa'idar aikinsa ta dogara ne akan halayen juriyar semiconductor da ke canzawa tare da zafin jiki.Musamman, thermistors suna amfani da wannan kadara ta semiconductor don auna zafin jiki.Idan aka kwatanta da juriya na thermal, juriya na thermistor yana canzawa sosai tare da canjin zafin jiki, don haka ma'aunin zafinsa yana da kunkuntar (-50 ~ 350 ℃).
An raba thermistors zuwa NTC thermistors da PTC thermistors.NTC thermistors suna da ƙarancin zafin jiki mara kyau, kuma ƙimar juriyar su tana raguwa yayin da zafin jiki ke ƙaruwa.PTC thermistor yana da ingantaccen madaidaicin zafin jiki, kuma ƙimar juriyarsa zata ƙaru tare da haɓakar zafin jiki.Saboda yanayin juriya na musamman, thermistor yana da aikace-aikace da yawa a cikin gano zafin jiki, sarrafawa ta atomatik, na'urorin lantarki da sauran filayen.
Zhuo Meng Shanghai Auto Co., Ltd. ya jajirce don siyar da sassan motoci na MG&MAUXS maraba da siyarwa.
