Design and construction of a gallium fixed-point blackbody at CENAM
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| Format: | Artículo científico |
| Langue: | en |
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Sociedad Mexicana de Física A.C.
2015
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| _version_ | 1876486224785440768 |
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| author | D. Cárdenas-García |
| author_facet | D. Cárdenas-García |
| contents | Design and construction of a gallium fixed-point blackbody at CENAM D. Cárdenas-García Física, Astronomía y Matemáticas fixed point blackbody radiation thermometry International temperature scale of 1990 For temperatures below silver fixed-point defined by the International Temperature Scale of 1990, a transfer radiation thermometer can be calibrated using either of two calibration schemes: a variable temperature blackbody with a standard platinum resistance thermometer as a reference, or with a set of fixed-point blackbodies. CENAM is presently working with the first scheme, and it is developing fixed-point blackbodies to have the capability to work with the second scheme too. For this purpose a gallium fixed-point blackbody to calibrate CENAM’s transfer radiation thermometer was designed and constructed. The blackbody cavity has a cylindro-cone shape with effective emissivity equal to 0:9992§0:0004 in the 8 ¹m to 14 ¹m wavelength range. The radiance temperature of the gallium fixed-point blackbody was estimated to have an expanded uncertainty of 54 mK, with a coverage factor k = 2. 2015 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57036862001 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.61 |
| format | Artículo científico |
| id | redalyc_57036862001 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Design and construction of a gallium fixed-point blackbody at CENAM D. Cárdenas-García Física, Astronomía y Matemáticas fixed point blackbody radiation thermometry International temperature scale of 1990 Design and construction of a gallium fixed-point blackbody at CENAM D. Cárdenas-García Física, Astronomía y Matemáticas fixed point blackbody radiation thermometry International temperature scale of 1990 For temperatures below silver fixed-point defined by the International Temperature Scale of 1990, a transfer radiation thermometer can be calibrated using either of two calibration schemes: a variable temperature blackbody with a standard platinum resistance thermometer as a reference, or with a set of fixed-point blackbodies. CENAM is presently working with the first scheme, and it is developing fixed-point blackbodies to have the capability to work with the second scheme too. For this purpose a gallium fixed-point blackbody to calibrate CENAM’s transfer radiation thermometer was designed and constructed. The blackbody cavity has a cylindro-cone shape with effective emissivity equal to 0:9992§0:0004 in the 8 ¹m to 14 ¹m wavelength range. The radiance temperature of the gallium fixed-point blackbody was estimated to have an expanded uncertainty of 54 mK, with a coverage factor k = 2. 2015 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57036862001 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.61 |
| title | Design and construction of a gallium fixed-point blackbody at CENAM |
| topic | Física, Astronomía y Matemáticas fixed point blackbody radiation thermometry International temperature scale of 1990 |
| url | https://www.redalyc.org/articulo.oa?id=57036862001 |