A thermocouple huwa magħmul up ta ' komponenti multipli . Hawn huwa a analiżi ta' kull biċċa .
Kejl Junctions
A kejl junction is the "hot" end of the thermocouple. This junction is where the two wires meet, and where temperature is measured. There are three kinds of measuring junctions:
Esposti Junction – Xejn Protezzjoni The Wire Ends, Tifsir Jiġifieri Huma Setilù Rust Or Get Damaged Over Time.
Grounded Junction – A Metal Sheath Covers The Wires (Normalment Stainless Steel). This Design Is Much More Stable And Long-Lasting.
Ungrounded Junction – In This Case, The Sheath Is Not Connected Electrically To The Wires. An Ungrounded Junction Is Less Susceptible To Electromagnetic Interference.
Referenza Junctions
Il referenza junction is the other side of the thermocouple, or the "cold" connection. To get an accurate thermocouple readout, you need to know the wires' temperature at rest-hence the term "reference." The reference junction is often built into the display instrument, so the user won't even see it.
Estensjoni Wajer
Peress li thermocouples huma spiss imqiegħda f' kundizzjonijiet mhux adattat for nies, tali bħal estrem kiesaħ jew sħana, it-temperatura qarrej spiss gets placed a significant distance away from the measuring junction. To ensure the accuracy of the readout, these systems use extension wires. These wires are insulated and protected so that the voltage isn't affected by other environmental factors. The wires are never calibrated above 204 degree to tiżgura l-istabbiltà.
