Yadda za a rage kuskuren aunawa ta hanyar amfani da thermocouples?Da farko dai, don magance matsalar, muna buƙatar fahimtar musabbabin kuskuren don magance matsalar yadda ya kamata!Bari mu kalli wasu ƴan dalilai na kuskuren.
Da farko, tabbatar da cewa an shigar da thermocouple daidai.Idan ba a shigar da shi da kyau ba, kuskure zai faru.Wadannan maki hudu ne na shigarwa na thermocouple.
1. Zurfin shigarwa ya kamata ya zama akalla sau 8 da diamita na bututu mai kariya;sararin da ke tsakanin bututu mai karewa da bangon thermocouple ba a cika shi da kayan da aka rufe ba, wanda zai haifar da zubar da zafi a cikin tanderu ko kutsawar iska mai sanyi, kuma ya sanya bututun kariya na thermocouple da ramin bangon tanderan an toshe ratar ta kayan kariya kamar su. laka mai jujjuyawa ko igiyar auduga don gujewa haɗuwar iska mai zafi da sanyi, wanda ke shafar daidaiton ma'aunin zafin jiki.
2. Ƙarshen sanyi na thermocouple yana kusa da jikin tanderun, kuma yawan zafin jiki na ma'auni ya yi yawa;
3. Sanya thermocouple ya kamata a yi ƙoƙari don guje wa filin maganadisu mai ƙarfi da ƙarfin wutar lantarki, don haka bai kamata a sanya thermocouple da igiyar wutar lantarki akan bututu ɗaya ba don guje wa kurakurai da kutse ke haifarwa.
4.Thermocouples ba za a iya shigar a cikin wuraren da matsakaicin aunawa ba safai ba.Lokacin amfani da thermocouple don auna zafin iskar gas a cikin bututu, dole ne a shigar da thermocouple a cikin juzu'i na sauri kuma ya kasance cikin cikakkiyar hulɗa da iskar gas.
Na biyu, lokacin amfani da thermocouple, canjin insulation na thermocouple shima yana daya daga cikin dalilan kuskuren:
1. Yawan datti da gishiri mai yawa tsakanin wutar lantarki na thermocouple da bangon tanderu zai haifar da rashin daidaituwa tsakanin wutar lantarki na thermocouple da bangon tanderun, wanda ba kawai zai haifar da asarar wutar lantarki ba, har ma da tsangwama, kuma wani lokacin kuskuren zai iya kaiwa daruruwan. digiri Celsius.
2. Kuskure sakamakon juriya na thermal na thermocouple:
Kasancewar ƙura ko ash ɗin gawayi akan bututun kariya na thermocouple yana ƙara juriya na thermal kuma yana hana zafin zafi, kuma ƙimar nunin zafin jiki yana ƙasa da ƙimar ƙimar zafin jiki na gaskiya.Don haka, kiyaye bututun kariya na thermocouple mai tsabta.
3. Kurakurai da rashin aiki na thermocouples ya haifar:
Inertia na thermalcouple yana sa alamar ƙimar kayan aiki ta ragu a bayan canjin zafin da aka auna, don haka ya kamata a yi amfani da ma'aunin zafi da ƙananan ƙananan bambance-bambancen zafi da ƙananan diamita na bututu mai kariya gwargwadon yiwuwa.Saboda hysteresis, kewayon canjin yanayin zafi da thermocouple ya gano ya yi ƙasa da kewayon canjin zafin tanderu.Sabili da haka, don auna zafin jiki daidai, ya kamata a zaɓi kayan da ke da kyakkyawan yanayin zafi, kuma ya kamata a zaɓi hannayen rigar kariya tare da bangon bakin ciki da ƙananan diamita na ciki.A cikin madaidaicin ma'aunin zafin jiki, ana yawan amfani da ma'aunin zafi da sanyio mara waya ba tare da hannayen riga masu kariya ba.
A takaice dai, ana iya rage kuskuren auna ma'aunin thermocouple ta bangarori hudu: mataki daya shi ne duba ko an shigar da thermocouple daidai, mataki na biyu kuma shi ne duba ko an canza insulation na thermocouple, mataki na uku shi ne duba ko bututun kariya na thermocouple yana da tsabta, kuma mataki na hudu shine Kuskuren thermoelectric wanda ko da inertia ya haifar!
Lokacin aikawa: Dec-17-2020