Tolerances for Non-Linear Analog Resistance Scales

Scientists from NPL, in collaboration with Instituto Nazionale di Ricerca Metrologica (Italy), Graphenea SA (Spain), Das-Nano (Spain), delivered the EMPIR Grace project with the aim of developing novel metrology for electrical characterisation of graphene, to […]

by Peter B. Crisp Volume 6:5, Sep-Oct 1999 Many organizations rely on 10V DC standards as their primary DC reference. However, the routine maintenance of such devices is not only labor intensive, but requires a […]

by Charles Sperrazza Verification of the Standing Wave Ratio (SWR) of the 50 MHz 1 mW output power reference is a key step in performing a calibration of a RF power meter. Higher than desired […]