Optical pyrometers - advantages and disadvantages?

[stevenbarea]

Hello I really want to know what the advantages and disadvantages of optical pyrometers are?


Thanks a lot

 

[mgb_phys]

+ Cheap, rugged, high temperature, wie bandwidth
- Low senstitvity, poor time response.

 

[Redbelly98]

What mgb_phys said, and ...

Advantage:
non-contact measurement.

Disadvantage:
object must be hot enough to radiate visibly
systematic error from emissivity difference between pyrometer filament and object