Inspec keywords: measurement standards; current comparators; surface acoustic wave devices; low-temperature techniques; electric current measurement; acoustoelectric effects; electrometers

Other keywords: metrological triangle; constant current plateaux; commercial electrometer; flatness; 15 fA; one-dimensional channel; NPL; single electrons; surface acoustic waves; quantum standard; acoustoelectric current; cryogenic current comparator; accuracy

Subjects: Measurement standards and calibration; Electrical instruments and techniques; Cryogenics; Measurement standards and calibration; Current measurement; Acoustic wave devices