Ana amfani da ma'aunin zafin jiki mara kyau (NTC) azaman madaidaicin abubuwan firikwensin zafin jiki a cikin motoci iri-iri, masana'antu, kayan gida da aikace-aikacen likita.Saboda ana samun nau'ikan nau'ikan thermistors na NTC - waɗanda aka ƙirƙira su da ƙira daban-daban kuma an yi su daga abubuwa iri-iri - zaɓi mafi kyauNTC thermistorsdon takamaiman aikace-aikacen na iya zama ƙalubale.
Me yasazabiNTC?
Akwai manyan fasahohin firikwensin zafin jiki guda uku, kowannensu yana da halayensa: na'urori masu auna zafin jiki na juriya (RTD) da nau'ikan thermistors iri biyu, ma'aunin zafin jiki mai kyau da mara kyau.Ana amfani da na'urori masu auna firikwensin RTD da farko don auna yanayin zafi da yawa, kuma saboda suna amfani da ƙarfe mai tsafta, sun fi tsada fiye da thermistors.
Saboda haka, saboda masu zafin jiki suna auna zafin jiki tare da daidaito ɗaya ko mafi inganci, yawanci ana fifita su akan RTDS.Kamar yadda sunan ke nunawa, juriyar madaidaicin madaidaicin zafin jiki (PTC) thermistor yana ƙaruwa da zafin jiki.Ana amfani da su galibi azaman na'urori masu auna zafin jiki a cikin kashewa ko da'irori masu aminci saboda juriya yana tashi da zarar an kai ga canjin yanayin.A gefe guda, yayin da zafin jiki ya karu, juriya na ma'aunin zafin jiki mara kyau (NTC) thermistor yana raguwa.Juriya ga yanayin zafi (RT) alaƙa ce mai lebur, don haka yana da daidaito sosai kuma yana da ƙarfi don ma'aunin zafin jiki.
Mabuɗin zaɓi na maɓalli
NTC thermistors suna da matukar damuwa kuma suna iya auna zafin jiki tare da babban daidaito (± 0.1 ° C), yana sa su dace don aikace-aikace da yawa.Koyaya, zaɓin nau'in nau'in don tantancewa ya dogara da adadin ma'auni - kewayon zafin jiki, kewayon juriya, daidaiton ma'auni, yanayi, lokacin amsawa, da buƙatun girman.
Abubuwan NTC masu rufin Epoxy suna da ƙarfi kuma galibi suna auna yanayin zafi tsakanin -55°C da +155°C, yayin da abubuwan NTC masu lulluɓe da gilashi suna auna har zuwa +300°C.Don aikace-aikacen da ke buƙatar lokutan amsawa cikin sauri, abubuwan da ke rufe gilashin sun fi dacewa zaɓi.Hakanan sun fi ƙaranci, tare da diamita kamar 0.8mm.
Yana da mahimmanci don daidaita yanayin zafin jiki na NTC thermistor zuwa zafin jiki na abin da ke haifar da canjin zafin jiki.A sakamakon haka, ba wai kawai suna samuwa a cikin nau'i na al'ada tare da jagora ba, amma kuma za'a iya sanya su a cikin nau'in nau'i na nau'i don haɗawa zuwa radiator don hawan saman.
Sababbin zuwa kasuwa gabaɗaya ba su da gubar (guntu da sassa) NTC thermistors waɗanda suka dace da ƙarin buƙatun umarnin RoSH2 mai zuwa.
Aikace-aikaceEmisaliOdubawa
Ana aiwatar da abubuwan haɗin firikwensin NTC da tsarin a fagage da dama, musamman ma a fannin kera motoci.Aikace-aikace na yau da kullun sun haɗa da ƙafafun tuƙi masu zafi da kujeru, da nagartattun tsarin sarrafa yanayi.Ana amfani da thermistors a cikin tsarin sake zagayowar iskar iskar gas (EGR), na'urori masu auna yawan abinci (AIM), da na'urori masu auna zafin jiki da manifold absolute pressure (TMAP).Faɗin zafin aikin su yana da babban tasiri juriya da ƙarfin rawar jiki, babban abin dogaro, da tsawon rai tare da kwanciyar hankali na dogon lokaci.Idan za a yi amfani da thermistors a cikin aikace-aikacen mota, to, ƙayyadaddun juriya na AEC-Q200 na duniya a nan ya zama dole.
A cikin motocin lantarki da masu haɗaka, ana amfani da na'urori masu auna firikwensin NTC don amincin baturi, lura da jujjuyawar bugun jini da matsayi na caji.Na'urar sanyaya firiji da ke sanyaya baturin an haɗa shi da tsarin kwandishan.
Gano yanayin zafi da sarrafawa a cikin kayan aikin gida yana rufe yanayin zafi da yawa.Misali, a cikin na'urar bushewa, azafin jiki firikwensinyana ƙayyade zafin iska mai zafi da ke gudana a cikin ganga da kuma zafin iskar da ke fita yayin da yake fita daga cikin ganga.Don sanyaya da daskarewa, daSensor NTCyana auna zafin jiki a cikin ɗakin sanyaya, yana hana mai fitar da iska daga daskarewa, kuma yana gano zafin yanayi.A cikin ƙananan na'urori kamar ƙarfe, masu yin kofi da kettles, ana amfani da na'urori masu auna zafin jiki don aminci da ingantaccen makamashi.Rukunin dumama, samun iska da kwandishan (HVAC) sun mamaye babban yanki na kasuwa.
Filin Kiwon Lafiya Mai Girma
Filin lantarki na likitanci yana da na'urori iri-iri don marasa lafiya, marasa lafiya da ma kula da gida.Ana amfani da thermistors NTC azaman abubuwan gano zafin jiki a cikin na'urorin likita.
Lokacin da ake cajin ƙaramar na'urar likita ta hannu, dole ne a kula da yanayin zafin aiki na baturi mai caji.Wannan saboda halayen lantarki da ake amfani da su yayin sa ido sun fi dogaro da zafin jiki, don haka da sauri, ingantaccen bincike yana da mahimmanci.
Ci gaba da Kula da Glucose (GCM) facin na iya sa ido kan matakan sukari na jini a cikin marasa lafiya masu ciwon sukari.Anan, ana amfani da firikwensin NTC don auna zafin jiki, saboda wannan na iya shafar sakamakon.
Jiyya na ci gaba mai kyau na iska (CPAP) yana amfani da na'ura don taimaka wa masu fama da barcin barci suna numfashi da sauƙi yayin barci.Hakazalika, ga cututtuka masu tsanani na numfashi, kamar COVID-19, injina na injina suna ɗaukar numfashin mara lafiya ta hanyar latsa iska a cikin huhunsu da cire carbon dioxide.A cikin lokuta biyu, na'urori masu auna firikwensin NTC da ke rufe gilashi suna haɗa su cikin humidifier, catheter na iska da bakin ci don auna zafin iska don tabbatar da cewa marasa lafiya sun kasance cikin kwanciyar hankali.
Barkewar cutar ta kwanan nan ta haifar da buƙatar ƙarin hankali da daidaito ga na'urori masu auna firikwensin NTC tare da kwanciyar hankali na dogon lokaci.Sabon mai gwajin ƙwayar cuta yana da ƙayyadaddun buƙatun sarrafa zafin jiki don tabbatar da daidaiton amsawa tsakanin samfurin da reagent.Hakanan an haɗa smartwatch tare da tsarin kula da yanayin zafi don faɗakar da yiwuwar cututtuka.
Lokacin aikawa: Mayu-25-2023