DocumentCode
2969938
Title
A watt meter standard for the audio frequency range
Author
Svensson, S.
Author_Institution
Nat. Testing & Res. Inst., Boras, Sweden
fYear
1998
fDate
6-10 July 1998
Firstpage
546
Lastpage
547
Abstract
A watt meter standard, based on digital sampling, has been designed and evaluated for the audio frequency range. The watt meter is based on two commercially available sampling DVMs. The power spectrum is calculated with DFT analysis. High accuracy is achieved by phase locking and simultaneous sampling.
Keywords
calibration; digital voltmeters; discrete Fourier transforms; frequency response; measurement standards; measurement uncertainty; power measurement; signal sampling; voltage dividers; wattmeters; DFT analysis; PC control; amplitude frequency response; audio frequency range; coaxial shunt resistors; digital sampling; high accuracy; inductive voltage divider; measurement uncertainty; phase angle corrections; phase locking; power spectrum; sampling DVM; simultaneous sampling; trigger control circuitry; watt meter standard; Calibration; Circuits; Current measurement; Discrete Fourier transforms; Frequency measurement; Phase measurement; Resistors; Sampling methods; Signal sampling; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location
Washington, DC, USA
Print_ISBN
0-7803-5018-9
Type
conf
DOI
10.1109/CPEM.1998.700048
Filename
700048
Link To Document