Ukumelana nokuHlaziya kweArmometer

Ikhono lesinyithi ukutshintsha iipropati zabo eziphathekayo phantsi kwefuthe lokushisa kusetyenziswa ngokubanzi ekusebenzeni izixhobo. Umzekelo, i-thermometer yokumelana neplatinum isebenzisa isakhiwo sensimbi ukwenyusa ukunyanzeliswa kombane xa iqondo lokushisa liphakama. Ngokomzekelo, kwi-t = 0 ^о С, i-platinum inokumelana ne-100 ОМ.

I-thermometer yokuxhatshazwa iyisitimu sokulinganisa esithumela isalathisi kumlawuli malunga nokuchasana kwamanje phakathi koonxibelelwano beentloko. Umlawuli wenza iinkcukacha kwaye uyithumela kwinkqubo yolawulo lwenkqubo, apho umsebenzisi sele ubona imeko ekhoyo yangoku yokushisa kwinkqubo yokuvelisa. I-thermometer yokuxhatshazwa isetyenziselwa kumashishini amachiza kunye nobunjineli.

Uyilo lwenzwa lulula. I-thermometer yoxinzelelo yobhedu iququzelele abathathu oonxibelelwano, ezimbini zazo zivaliwe kunye, kwaye yesithathu iyinto eqhelekileyo, inokumelana ne-120 Ω. Inkqubo yokuxhamla ngokukodwa iyintambo emithathu, nangona kukho ukungabikho. Ikhefu kwisixhobo sokuya kulawulo kufuneka ikhuselwe ngaphandle kokuphazamiseka kwangaphandle. Akufuneki kubekwe ngetambo zombane kwaye kufuneka ikhuselwe.

Inkqubo yokusebenza yile ndlela ilandelayo: ukutshatyalaliswa kwe-thermometer - isithintelo - inkqubo yokulawula ngokuzenzekelayo. I sixhobo siqhutywe kwimibhobho, iikholomu zenkqubo , ezisetyenziselwa ukulinganisa iqondo lokushisa kwiibhetto zokupompa. Ukusebenza, i-thermometer yokumelana ayinakuthobeka kwaye ichanile ngokuchanekileyo, ukufundwa kwayo kuyahluka ukusuka kwi-real-maximum engama-0.7 degrees.

Ekubeni i-design of a device efana ne-thermometer yokumelana nayo ihambelana ngqo nokufuduswa kobushushu ukusuka kwi-medium ukuya kumxhasi, kuyafuneka kwakhona ukuba uqwalasele indawo yesikrini ngexesha lokufakwa. Impayipi kufuneka ikhutshwe nge-thermally, okwangoku i-flow speed of the medium to be measured must be maximized. Iphutha lokulinganisa lingancitshiswa ngokutshintsha umlinganiselo wengcongolo yesandi ukuya kumgama weTC. Eyona nto iya kuba yinto echanileyo, umphumo wokulinganisa uya kuba. Ubunzulu bokubhapathizwa kufuneka bubalwe ukusuka kwimeko yokudlulisa ubushushu bobude obuphakathi. Ngokomzekelo, kwiimeko ezinomlinganiselo ophezulu wokutshintshwa kobushushu, njenge-steam, okanye utywala, kufuneka kube ngamaxesha ama-1.5 ubude obusebenzayo kwisixhobo sokumelana ne-thermometer.

Ngethuba lokufakela, i-"thermowell" ifakwe kuqala kwindawo yesampulu. Lo luhlobo lwe-sleeve ekhuselayo, eyenzelwe ukuququzelela ukuqothulwa kwesixhobo, ukuze i-sensor ingatshintshwa ngaphandle kokuyeka inkqubo. Ekubeni ububanzi beqondo lokulinganisa liphakathi kwama-200 no-600 degrees Celsius, i-sleeve yokukhusela yenziwe ngensimbi engenasici. Xa zisetyenziselwa i-acrosidi acid okanye i-alkaline media, i-thermowells yambethe i-polym ekhethiweyo engqineki kumgangatho omele ulinganiswe.

I-thermometer yokuxhatshazwa iveliswa kumazwe amaninzi ehlabathi. Iimodeli ezidume kakhulu yi-American "Wika", isiRussia "Metran" kunye neYurophu "Endress Hauser". Ezi zixhobo zinomgangatho ophezulu wokuthembeka. Abakwazi ukuhambisa ukushisa okuqhubekayo, kodwa ukulinganisa nokushisa okutshintshayo ngokukhawuleza.