Building a Sensor Circuit to Measure High Temperatures

[lakmalp]

Hi,

I have to build a sensor circuit to measure temperatures up to 2000°C. I searched for an IR sensor for this and it seems they are very costly.

Is there a way to suppress the incoming IR radiation from the source and direct it to a sensor having lower temperature sensing ranges?

I would appreciate if someone can be of help.

Regards,
/Lakmal

 

[jsgruszynski]

http://en.wikipedia.org/wiki/Thermopile