Lehae > Litaba > Litaba tsa indasteri

U ka ahlola joang hore na thermocouple e ntle kapa e mpe?

2021-10-09

Tšebeliso ea tlhahiso e ntse e eketseha le ho feta.Thermocouplese se e le e 'ngoe ea likarolo tse sebelisoang haholo ho lemoha mocheso indastering. Li na le litšobotsi tsa ho nepahala ha litekanyo tse phahameng, mefuta e mengata ea litekanyo, sebopeho se bonolo, le tšebeliso e bonolo. Re utloisisa le ho sekaseka lihlahisoa ka likanale tse ngata, 'me re hlahisa mefuta e mengata ea tsebo ea indasteri ho basebelisi ba bangata ba marang-rang.
Joale re tla utloisisa kahlolo ea hore nathermocouple e ntle kapa e mpe?
Molao-motheo oa ho lekanya mocheso oathermocouple ke hore likarolo tse peli tse fapaneng tsa li-conductor tsa thepa li etsa lesela le koetsoeng. Ha ho e-na le sekhahla sa mocheso mahlakoreng ka bobeli, motlakase o tla phalla ka har'a lupu. Nakong ena, ho na le matla a electromotive force-thermoelectromotive pakeng tsa lipheletso tse peli. Sena ke se bitsoang Seebeck effect. Li-conductor tse peli tse homogeneous tsa likarolo tse fapaneng lithermoelectrodes, pheletso e nang le mocheso o phahameng ke pheletso ea ts'ebetso, pheletso e nang le mocheso o tlase ke pheletso ea mahala, 'me qetello ea mahala hangata e thempereichara e itseng e sa fetoheng.
Kamora ho sebelisa nako e telele, li-thermocouples li tla fela, 'me li kanna tsa senyeha. Ka kakaretso, boleng ba li-thermocouples bo amana le terata eathermocouple (terata) e ho eona, empa bothata ke joang ho ahlola boleng ba terata eathermocouple. Ha re e tšohleng hakhutšoanyane.


Pele ho tsohle, etsa bonnete ba hore ha ho na bothata ka ponahalo ea terata eathermocouple, ebang e ntle kapa e mpe, 'me e ka khethoa feela ka tlhahlobo.
Beha terata eathermocouple hore e lekoe ka sleeve e khethehileng ea letsopa bakeng sathermocouple, 'me ue kenye ka har'a sebōpi sa motlakase sa tubular hammoho le platinum e tloaelehileng le rhodiumthermocouple,' me u kenye ntlha e chesang ka har'a nickel ea tšepe e nang le porous ka sebōping sa motlakase sa tubular. Moqomong. Kenya lipheletsong tse batang tsa mehala ea matšeliso ka har'a sets'oants'o sa likhato tsa Celsius tse bolokiloeng ke motsoako oa leqhoa le metsi.
Boloka sebopi sa tube ea motlakase ka mocheso o lumellehang oathermocouple, 'me u boloke mokoloko ona o tsitsitse. Ka nako ena, sebelisa Wheatstone potentiometer e tšoanelehang ho lekanya le ho rekota phapang e ka bang teng ea motlakase pakeng tsathermocouple e tloaelehileng lethermocouple e lokelang ho lekoa. Ho latela phapang e ka bang teng ea motlakase, sheba tafoleng ea index ho fumana mocheso o tsamaellanang. Haeba faele eathermocoupletlas'a teko e tsoa ho mamello, e ka ahloloa e sa tšoanelehe.
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