Abstract
This paper gives the results of an indirect comparison of a cryogenic radiometer from the Institut National de Metrologie (INM), France, and from the Technical Research Centre of Finland (VTT) with a QED-200 from the Van Swinden Laboratorium (VSL), the Netherlands. This comparison was performed at a laser wavelength of 543,515 nm (in vacuum) and at a power level of 100 µW. If this QED-200 is assumed to be stable with time, then two cryogenic radiometers of different design have been shown to agree to 3 × 10-5 with an uncertainty 3 × 10-4 at the 1σ level.
Original language | English |
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Pages (from-to) | 561-564 |
Journal | Metrologia |
Volume | 32 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1995 |
MoE publication type | A1 Journal article-refereed |