• DocumentCode
    767003
  • Title

    An active low-pass filter for biological potential amplifiers

  • Author

    White, Gifford

  • Author_Institution
    White Instrument Labs., Austin, Tex.
  • Volume
    8
  • Issue
    1
  • fYear
    1961
  • Firstpage
    2
  • Lastpage
    4
  • Abstract
    An active RC filter with an m-derived low-pass response is described. With a cutoff of 45 cps and a sharp attenuation peak at 60 cps, it is particularly suitable for eliminating power-frequency interference from EKG, EEG, or other biological potential amplifiers. It is small in size and requires only one 12AX7 or its transistor equivalent for the active elements. Typical design data and performance curves are given.
  • Keywords
    Active filters; Band pass filters; Cutoff frequency; Electron tubes; Filtering theory; Low pass filters; Magnetic field measurement;
  • fLanguage
    English
  • Journal_Title
    Bio-Medical Electronics, IRE Transactions on
  • Publisher
    ieee
  • ISSN
    0096-1884
  • Type

    jour

  • DOI
    10.1109/TBMEL.1961.4322842
  • Filename
    4322842
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=767003