Title :
A calculable, transportable audio-frequency AC reference standard
Author :
Oldham, N.M. ; Hetrick, P.S. ; Zeng Xiangren
Author_Institution :
National Bureau of Standards
Abstract :
A transportable ac voltage source is described, in which sinusoidal signals are digitally-synthesized in the audio-frequency range. The rms value of the output waveform may be calculated by measuring the dc level of the individual steps used to generate the waveform. The uncertainty of this calculation is typically 10 ppm from 20 Hz - 10 kHz at the 7 V level.
Conference_Titel :
Precision Electromagnetic Measurements, 1988. CPEM 88 Digest. 1988 Conference on
Conference_Location :
Ibaraki, Japan
DOI :
10.1109/CPEM.1988.671164
