Spectral pyrometry with 200-330 Hz thermal spectra recording frequency

Measurement characteristics of spectral pyrometer for recording of series containing hundreds or thousands of thermal spectra of object under study and for determination of temporal dependences of temperature T(t) are discussed. Experimental registration of thermal spectra sequences was performed for the first time. Spectrum collection time equals to 3-5 ms, operation frequency is 200-330 Hz. Dependency of titanium particles temperature and steel plate on time of their laser heating at wavelength of 1064 nm and power of 6-12 W was shown.