DocumentCode :
2276756
Title :
Traceable Johnson noise measurements in the audio frequency range
Author :
Callegaro, L. ; Pisani, M. ; Pollarolo, A.
Author_Institution :
Inst. Naz. di Ricerca Metrologica, Torino
fYear :
2008
fDate :
8-13 June 2008
Firstpage :
136
Lastpage :
137
Abstract :
A simple setup for the accurate measurement of Johnson noise of a resistor is here presented. The setup is composed of a digital correlation spectrum analyzer, and of a calibration signal source traceable to ac voltage and frequency standards. If resistor temperature is measured, an estimate of the Boltzmann constant kB can be obtained. Presently, measured kB has a relative error below 1times10-3 with respect to the accepted value.
Keywords :
constants; noise measurement; resistors; thermal noise; Boltzmann constant; Johnson noise measurements; ac frequency standard; ac voltage standard; audio frequency range; calibration signal source; digital correlation spectrum analyzer; resistor temperature; Bandwidth; Calibration; Electromagnetic measurements; Frequency measurement; Noise generators; Noise measurement; Resistors; Spectral analysis; Temperature measurement; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location :
Broomfield, CO
Print_ISBN :
978-1-4244-2399-6
Electronic_ISBN :
978-1-4244-2400-9
Type :
conf
DOI :
10.1109/CPEM.2008.4574690
Filename :
4574690
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2276756
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