Matsa lamba firikwensin 296-8060 don Caterpillar excavator part

Thermoelectric firikwensin

1. Thermoelectric sakamako

Lokacin da aka haɗa nau'ikan nau'ikan nau'ikan ƙarfe guda biyu A da B masu kaddarorin daban-daban zuwa madaidaicin madauki, idan yanayin mahaɗar bai daidaita ba (T0≠T), za a samar da ƙarfin lantarki tsakanin masu gudanarwa biyu, kuma wani adadin na yanzu zai kasance a cikin. madauki. Wannan sabon abu ana kiransa sakamako na thermoelectric.

2. Thermal juriya firikwensin

Abubuwan juriya na thermal yawanci ƙarfe ne masu tsafta, kuma platinum, jan ƙarfe, nickel, baƙin ƙarfe da sauransu ana amfani da su sosai.

3. Thermistor firikwensin

Thermistors an yi su ne daga semiconductor kuma suna da halaye masu zuwa idan aka kwatanta da masu zafi na ƙarfe:

1) babban adadin yawan zafin jiki na juriya da haɓakar hankali;

2) tsari mai sauƙi, ƙananan ƙarar da ma'auni mai sauƙi;

3) Babban tsayayya da dacewa don ma'auni mai ƙarfi;

4) Alakar da ke tsakanin juriya da canjin zafin jiki ba shi da tushe;

5) rashin kwanciyar hankali.

5 gyare-gyaren ƙira

Akwai guda uku da aka fi amfani da su:

1. Dangane da adadin na'urori masu auna firikwensin, ana iya raba su zuwa na'urori masu auna firikwensin kamar ƙaura, ƙarfi, saurin gudu, zazzabi, kwarara da abun da ke ciki na gas.

Dangane da ka'idar aiki na na'urori masu auna firikwensin, ana iya raba su zuwa juriya, capacitance, inductance, ƙarfin lantarki, Hall, photoelectric, grating, thermocouple da sauran na'urori masu auna firikwensin.

2. Dangane da yanayin siginar fitarwa na firikwensin, ana iya raba shi zuwa: na'urori masu auna firikwensin canzawa waɗanda abubuwan da ke fitowa suna canza dabi'u ("1" da "0" ko "on" da "kashe"); Abin da ake fitarwa shine firikwensin analog; Na'urar firikwensin dijital wanda abin fitarwa shine bugun jini ko lamba.

Ana amfani da Sensors don auna zafin jiki da matsa lamba na ruwa daban-daban (kamar yawan zafin jiki, matsa lamba na iska, ruwan sanyi mai sanyi da matsa lamba na man fetur, da dai sauransu); Akwai na'urori masu auna firikwensin da ake amfani da su don tantance saurin da matsayi na kowane bangare (kamar saurin abin hawa, buɗaɗɗen maƙura, camshaft, crankshaft, kusurwa da saurin watsawa, matsayi na EGR, da sauransu); Hakanan akwai na'urori masu aunawa don auna nauyin injin, ƙwanƙwasa, rashin wuta da abun ciki na iskar oxygen a cikin iskar gas; Na'urar firikwensin don ƙayyade matsayi na wurin zama; Na'urori masu aunawa don auna saurin dabaran, bambancin tsayin titi da matsa lamba a cikin tsarin hana kulle-kulle da na'urar sarrafa dakatarwa; Don kare jakar iska ta fasinja na gaba, ba kawai ƙarin na'urori masu auna firikwensin karo da na'urori masu hanzari kawai ake buƙata ba. Fuskantar ƙarar gefen masana'anta, jakar iska ta sama da jakan iska mai kyau na gefe, yakamata a ƙara na'urori masu auna firikwensin. Kamar yadda masu bincike ke amfani da na'urori masu auna haɗarin haɗari (radar radar ko wasu na'urori masu auna firikwensin) don yin hukunci da sarrafa hanzarin motar ta gefe, saurin kowane dabaran da ƙarfin da ake buƙata, tsarin birki ya zama wani ɓangare na kula da kwanciyar hankali na mota. tsarin.