scholarly journals Experiments at TA-55 have used optical pyrometry to measure temperatures of shocked plutonium on the 40mm gun

2021 ◽  
Author(s):  
Brian Jensen ◽  
Dana Dattelbaum
Keyword(s):  

1954 ◽  
Vol 5 (6) ◽  
pp. 227-228 ◽  
Author(s):  
M C Probine ◽  
S Bertaud


2018 ◽  
Vol 170 ◽  
pp. 08004
Author(s):  
B. Bouvry ◽  
G. Cheymol ◽  
C. Gallou ◽  
H. Maskrot ◽  
C. Destouches ◽  
...  




1958 ◽  
Vol 36 (10) ◽  
pp. 1397-1408 ◽  
Author(s):  
D. R. Lovejoy

A pair of secondary standard tungsten strip lamps have had a luminance temperature – current calibration, in the range 800 °C to 2200 °C, at a number of national laboratories. An analysis of the calibration results confirms estimates of the accuracy of optical pyrometry in the range 800 °C to 2200 °C and supports the extension of these estimates to 4000 °C. The standard deviation uncertainty of optical pyrometry is shown to be about 1 °C at 800 °C rising to 2 °C at 2200 °C and 10 °C at 4000 °C, being about double this for the calibration of commercial pyrometers unless certain described precautions are taken.The reliability of the secondary standard lamps, when used under well-defined conditions, is confirmed and it is shown that they have a standard deviation calibration uncertainty of about 1 °C for the vacuum-type lamps in the range 800 °C to 1500 °C and 2 °C for the gas-filled lamps in the range 1500 °C to 2200 °C. Most of this uncertainty is due to primary standard optical pyrometer calibration errors. Attention is drawn to the fact that a carbon arc fulfills the requirements of a secondary luminance temperature standard at about 3514 °C.Recent determinations of the gold point and the second radiation constant indicate that the 1948 International Temperature Scale is lower than the thermodynamic scale by an amount varying from 0.8 °C at 800 °C to 12 °C at 4000 °C. This is already greater than the calibration errors of optical pyrometry and, in view of the still greater accuracies presaged by photomultipliers, a revision of the International Temperature Scale is suggested.



1976 ◽  
Vol 47 (12) ◽  
pp. 1547-1550 ◽  
Author(s):  
R. E. Einziger ◽  
J. N. Mundy




2016 ◽  
Author(s):  
Masahide Terazima ◽  
Noboru Hirota ◽  
Silvia E. Braslavsky ◽  
Andreas Mandelis ◽  
Stephen E. Bialkowski ◽  
...  
Keyword(s):  




2012 ◽  
Vol 83 (12) ◽  
pp. 123501 ◽  
Author(s):  
P. A. Ni ◽  
R. M. More ◽  
H. Yoneda ◽  
F. M. Bieniosek


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