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A transportable blackbody furnace for the accurate realization of the fixed points of indium, tin and zinc

F Girard and T Ricolfi

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The design of a compact blackbody furnace that allows temperature fixed points to be realized to a high degree of accuracy is described. Using this apparatus, the standard uncertainty in the calibration of a precision infrared thermometer at the fixed-point temperatures of indium, tin and zinc was estimated to be about C. This furnace can be used as a travelling standard for intercomparisons as well as laboratory apparatus for the calibration of precision infrared thermometers.


PACS

07.20.Hy Furnaces; heaters

44.40.+a Thermal radiation

06.20.F- Units and standards

07.20.Dt Thermometers

Subjects

Instrumentation and measurement

Statistical physics and nonlinear systems

Dates

Issue 8 (August 1998)

Received 27 January 1998, accepted for publication 31 March 1998, in final form 10 March 1998



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