The principle of operation of temperature sensors is based on the thermoelectric effect -
generation of thermoelectromotive force (TEMF), which is proportional to the temperature difference between the working end and the free ends of the two wires.
of the working end and free ends of two conductors (thermoelectrodes) made of different metals
or alloys.
Temperature sensors consist of one or several structurally connected ,
primary temperature transducers, protective housing with or without mounting elements and switching devices in the switching devices.
without them and switching devices in the form of a terminal head, box, connector or extending
wires.
The primary transducer of temperature sensors is made in the form of a wire or cable thermocouple.
or cable thermocouple.
A wire thermocouple is a ceramic straw or beads with one, two or three pairs of thermocouples placed inside it.
inside it one, two or three pairs of thermoelectrodes, located
parallel to each other. The material of the straw and beads is alumina ceramic. Thermoelectrodes
wire thermocouple on the side of the working end are welded together in pairs to form a wire thermocouple.
one, two or.
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