Digital Capacitance Meters in the Physical Chemistry Lab

Roy W. Clark and Michael J. Smith
Middle Tennessee State University, Department of Chemistry and Physics, 1615 Jupiter Place, Murfreesboro, TN 37132
J. Chem. Educ., 1998, 75 (6), p 768
DOI: 10.1021/ed075p768
Publication Date (Web): June 1, 1998

Abstract

Modern digital capacitance meters can be used in the physical chemistry laboratory for dielectric constant experiments, replacing older tube-type instruments. This paper cautions that the type of digital meter must be known. Our investigation found that the self-balancing bridge type of digital capacitance instruments were superior to the RC time constant digital meters. The digital capacitance meter must apply a waveform to the cell which has no dc component. Otherwise drift results, especially for polar solvents.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Physical Chemistry

Keywords (Subject):

Instrumental Methods
View: Hi-Res PDF | PDF w/ Links

Tools

SciFinder Links

SciFinder subscribers: Click to sign in | Not a SciFinder subscriber? Learn more at www.cas.org

Explore by:

History

  • Received: August 03, 2009

Recommend & Share

  • Share on ACS NetworkACS Network
  • Add to FacebookFacebook
  • Tweet ThisTweet This
  • Add to CiteULikeCiteULike
  • Add to NewsvineNewsvine
  • Digg ThisDigg This
  • Add to DeliciousDelicious

Related Content