Fig. 1: Space temperature traceability method based on the near-site transfer of miniature fixed points.
From: Space temperature traceability based on near-site transfer of miniature fixed points

a Schematic of space temperature traceability method. b Principle of space temperature transfer. c Multiple point calibration a Continuous phase transition curves and temperature sensor interpolation calibration from 234 K to 345 K. d Point-to-surface transfer method of the miniature fixed points (MFPs) to platinum resistance thermometers (PRTs). e Physical demonstration of the miniature phase change cells.