Zifukwa zosayenerera kugwiritsa ntchito thermocouple

Malinga ndithermocoupleindexing nambala B, S, K, E ndi zina thermocouple kutentha lolingana ndi millivolt (MV) mtengo, pa kutentha komweko, kwaiye millivolt mtengo (MV) B index nambala ndi yaing'ono , S index nambala ndi yaing'ono, K index. nambala ndi yaikulu, E index nambala ndi yaikulu, kutsatira mfundo imeneyi kuweruza.

Ma thermocouples omwe ali oyenerera pakuwunika komanso kutsimikizira sakugwiritsa ntchito. Chodabwitsachi sichikudziwika ndipo sichidadzetse chidwi cha anthu. Chochitika chosayenerera pakugwiritsa ntchito thermocouple yomwe idapangitsa kutsimikizika makamaka chifukwa chakukhudzidwa kwa waya wa thermocouple, cholakwika cha shunt cha zida zankhondo komanso kugwiritsa ntchito kosayenera kwa thermocouple. Mkonzi wamaukonde ophunzirira zamagetsi amafotokoza chinsinsi m'nkhaniyi.

Mphamvu yakusagwirizana kwa waya wa thermocouple â ‘Nkhani zathermocouplesagwirizana. Thermocouple ikafufuzidwa mchipinda choyezera, malinga ndi zofunikira pamalamulo, kuzama kwakulowetsa mu ng'anjo yotsimikizira ya thermocouple ndi 300mm. Chifukwa chake, zotsatira zotsimikizira za thermocouple iliyonse zitha kuwonetsa kapena kuwonetsa waya wa 300nm wautali kuchokera kumapeto. Khalidwe lamagetsi. Komabe, kutalika kwa thermocouple ndikotalika, mawaya ambiri amakhala m'malo otentha kwambiri mukamagwiritsa ntchito. Ngati waya wa thermocouple ndiwosakanikirana ndipo uli pamalo okhala ndi kutentha pang'ono, ndiye kuti gawo lake limapanga mphamvu yamagetsi. Mphamvu yamagetsi yotchedwa electromotive yotchedwa parasitic, ndipo cholakwika chomwe chimayambitsidwa ndi parasitic chimatchedwa cholakwika chimodzi.

Kusagwirizana kwathermocouplewaya pambuyo ntchito. Ponena za zomwe zangopangidwa kumenethermocouple, ngakhale ntchito yosasinthika ikukwaniritsa zofunikira, kubwereza mobwerezabwereza ndi kupindika kumapangitsa kuti thermocouple ipangitse kusokonezeka kwa processing, ndipo idzataya homogeneity. Komanso, thermocouple idzataya homogeneity ikagwiritsidwa ntchito kwa nthawi yayitali pansi pa kutentha kwakukulu. Kuwonongeka kwa mphamvu yotentha ya electromotive kunayambitsa kusintha. Pamene mbali ya kuwonongeka ndi m'dera malo ndi kutentha gradient, izo zimapanganso parasitic mphamvu yamagetsi superimposed pa okwana thermoelectromotive mphamvu ndi kupereka cholakwika muyeso.