• DocumentCode
    907623
  • Title

    An Inexpensive High-Precision Constant-Current System with Metering Electronics

  • Author

    Vance, Dale L. ; Watson, Donald E.

  • Author_Institution
    Geomagnetism Laboratory, NOAA Research Laboratories, Boulder, Colo. 80302
  • Volume
    9
  • Issue
    1
  • fYear
    1971
  • Firstpage
    72
  • Lastpage
    74
  • Abstract
    A precision constant-current supply designed to deliver up to 600 mA at 18 V dc is described. Short-term stability (<8 h) is within ±0.002 percent of range. Long-term stability (72 h) is ±0.01 percent of range. The system is discussed in relation to its application for the control of magnetic environments using a three-axis Helmholtz coil configuration.
  • Keywords
    Circuits; Coils; Differential amplifiers; Electrical resistance measurement; Monitoring; Power supplies; Regulators; Resistors; Temperature; Voltage;
  • fLanguage
    English
  • Journal_Title
    Geoscience Electronics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9413
  • Type

    jour

  • DOI
    10.1109/TGE.1971.271463
  • Filename
    4043454
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=907623