Re: High temp measurment
An RTD (Resistance Temperature Detector) can handle the job nicely. It's a temperature sensitive resistor. It has an advantage over thermocouples in that it requires no cold junction compensation.
.
See, for example, the Heraeus SMD 0805 (V) at.
. h**p://www.dwmai.com/products/smd/SMD_0805_(V)_-e.pdf.
If you choose to use a thermocouple, there are specialized ICs that will do the cold junction compensation for you:
~ AD594 (For Type J thermocouple)
~ AD595 (For Type K thermocouple)
Otherwise, you must do the cold junction compensation yourself. See, for example, NSC LB 24:
h**p://www.national.com/ms/LB/LB-24.pdf