RADIOMETRIC TEMPERATURE MEASUREMENTS OF SHORT DURATION EVENTS.

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  • RADIOMETRIC TEMPERATURE MEASUREMENTS OF SHORT DURATION EVENTS. Book Detail

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  • Release Date : 1961
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  • Pages : 36
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  • File Size : 71,71 MB
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RADIOMETRIC TEMPERATURE MEASUREMENTS OF SHORT DURATION EVENTS. by PDF Summary

Book Description: A 4-color spectroscope using the wavelengths 0.546, 0.577, 0.623, and 0.750 microns was used to determine the surface temperatures of electrically exploded wires and aluminum projectiles of velocity 4,500 m/sec. Several values of initial capacitor energy, pressure, and ambient atmosphere were used with the exploded wires. The projectiles were observed in a normal atmosphere at 710 mm Hg. The temperatures observed for exploded wires for an initial capacitor energy of 0.8 joule in air at 710 mm Hg were: 3825! 25 K for aluminum, 3100! 75 K for copper, and 3700! 25 K for tungsten. For an aluminum projectile in air at 710 mm Hg at a velocity of 4,500 m/sec, the temperature observed was 3250! 50 K. The spectral distribution in all cases was observed to be black body and could be fitted by the Wien radiation law. Calibration was achieved using a tungsten ribbon lamp. Blackbody radiation data from the Planck radiation law are also given using the new value for the second radiation constant, C2 = 14,388 microns K for temperatures from 2000 to 4000 K and wavelengths from 0.500 to 0.800 microns.

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Radiometric Temperature Measurements

Radiometric Temperature Measurements

File Size : 35,35 MB
Total View : 4907 Views
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This book describes the practice of radiation thermometry, both at a primary level and for a variety of applications, such as in the materials processing indust

Radiometric Temperature Measurements

Radiometric Temperature Measurements

File Size : 52,52 MB
Total View : 7878 Views
DOWNLOAD

This book describes the theory of radiation thermometry, both at a primary level and for a variety of applications, such as in the materials processing industri