How to measure the temperature of an arc discharge

AI Thread Summary
Measuring the temperature of a micrometer-sized arc discharge poses challenges due to the inability to use traditional thermocouples. A spectrometer with a fiberoptic probe is recommended for analyzing the light spectrum emitted by the arc. The concept of temperature may be complex in this context due to the inhomogeneous nature of the discharge. Additionally, measuring temperature from the radiated electromagnetic fields of the arc is suggested as a viable approach. Utilizing a spectrometer effectively captures the necessary data for temperature estimation.
Si14
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Hi all,

I was thinking about measuring the temperature of an arc discharge. The size of the discharge is very small, in the order of micrometer. So it is not possible to put a thermocouple near the it.

Thank you very much.
 
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Get a spectrometer with a fiberoptic probe and measure the spectrum of the light.
 
It's also going to be highly inhomogeneous.

I'm not sure that the word temperature even makes much sense in the context.
 
Thank you. Spectrometer seems to be a good idea. Also, I was wondering if it is possible to measure the temperature from the radiated electromagnetic fields of the arc?
 
Si14 said:
Spectrometer seems to be a good idea. Also, I was wondering if it is possible to measure the temperature from the radiated electromagnetic fields of the arc?

That is what a spectrometer measures.
 
Thank you.
 

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