ADI's amplifiers are smaller, complete with internal cold junction
compensation and thus are quite simple to use with few or no additional parts needed on the printed circuit board.
The resulting system provides automatic cold junction
compensation for the same types of thermocouple inputs listed above for the Model 7708.
7700 -- 20-channel Differential Multiplexer with Automatic Thermocouple Cold Junction
Compensation (CJC): Besides thermocouple inputs, accepts analog signals up to 300 V and includes two current channels with bucontrolling power to DUTs, routing signals, swil 2700 Mainframe $ 995.
Provides linearization and cold junction
While the police officers stand on cold junctions
for hours on end, Council Parking Services scurry around the city centre issuing tickets like confetti.
On the other hand, the fact that in the case of inhomogeneous thermocouples the thermovoltage measured does not depend only on the temperatures of the hot and cold junctions
, but also on the temperature response alongside the thermocouple, is often ignored .