• 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.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2276756