Thermocouple materials are also subject to corrosion, which can affect the thermoelectric voltage Thermocouple temperature sensors are divided into various types, and include devices made of Chromel ...

1m length of constantan wire, a metre rule, a low voltage power pack, a variable resistor, a voltmeter, an ammeter, connecting leads, a switch, 2 crocodile clips, Sellotape. The temperature of the ...

The above experiment is repeated but with six, equal lengths of constantan wire, of different thickness. Record voltage, current and diameter of the wire, d (supplied by the manufacture).

For example, J type thermocouples are made with iron and constantan (copper-nickel alloy) and are suited for measurements in the –210°C to 1200°C range, while T type thermocouples are made with copper ...