National Physical Laboratory

Black Bodies

TIFRI Black Body

NPL has and continues to develop a range of black bodies for use as transfer standards. In this work it has also characterised the spectral properties of many black coatings to allow it to optimise the emissivity of a source for its intended application and operational environment.

The TIFRI black body is a novel concept in black body design supported under a contract to ESA. It allows a low mass, low operational power whilst maintaining high emissivity and high accuracy as an infrared spectral radiance calibration source. The concept makes use of a reflecting mirror to enhance the emissivity of a nominally low mass black disc.

Last Updated: 12 Oct 2015
Created: 23 Jul 2007

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