thermocouple
- n a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference
- To avoid running separate wires to each thermocouple, they are all connected to a small telephone exchange inside the mold.
- It would be possible to put the thermocouple at the focus of a movable parabolic reflector, and to assume, when a peak of electrical activity was noted, that the reflector was .
- A plasma thermocouple differs little in principle from the well-known bimetallic thermocouple that has been in use for a century to measure temperatures.