The Hemispherical Blackbody (HSBB) – The new National Irradiance Standard of PTB for calibration from -20 °C to 45 °C

Feierabend, Moritz; Bothur, Oliver; Pohlandt, Dörthe; Monte, Christian; Müller, Ingmar

Zugriffsnummer	56838
Dokumenttyp	Konferenzartikel
Sprache	Englisch
Titel	The Hemispherical Blackbody (HSBB) – The new National Irradiance Standard of PTB for calibration from -20 °C to 45 °C
Autor(in); Institution	Feierabend, Moritz; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin Bothur, Oliver; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin Pohlandt, Dörthe; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin Monte, Christian; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin Müller, Ingmar; 7.3, Detektorradiometrie und Strahlungsthermometrie, PTB-Berlin
Quelle/Jahr	The 16th International Conference on New Developments and Applications in Optical Radiometry : Book of Abstracts:(2026), 200 - 201
Availability	[online only]
URL	https://www.newrad2026.org/program/book-of-abstracts
Konferenzangaben	NEWRAD 2026 - 16th International Conference on New Developments and Applications in Optical Radiometry, Seogwipo, 13-17, September, 2026, South Korea
Zusammenfassung	The Hemispherical Blackbody (HSBB) was developed at the Physikalisch-Technische Bundesanstalt a few years ago. It serves as a traceable irradiance standard. The HSBB is used to calibrate radiometers measuring the nocturnal atmospheric Downward Longwave Radiation which is relevant for climate research. In this work, the new calibration of the HSBB against the national standard for radiation temperature is demonstrated. A new robot-assisted and automated calibration setup was used. The laboratory measurement uncertainty was significantly reduced compared to a former calibration. The complete uncertainty budget of the HSBB was compiled. The HSBB is now being established as a new national irradiance standard.

Zitierung

Feierabend, M., Bothur, O., Pohlandt, D., Monte, C., & Müller, I. (2026). The Hemispherical Blackbody (HSBB) – The new National Irradiance Standard of PTB for calibration from -20 °C to 45 °C. NEWRAD 2026 - 16th International Conference on New Developments and Applications in Optical Radiometry, Seogwipo, 13-17, September, 2026, South Korea.

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