% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Lin:62630,
      author       = {Lin, C. P. and Chung, C. and Huisman, J. A. and Tang, S.},
      title        = {{C}larification and {C}alibration of {R}eflection
                      {C}oefficient for {E}lectrical {C}onductivity {M}easurement
                      by {T}ime {D}omain {R}eflectometry},
      journal      = {Soil Science Society of America journal},
      volume       = {72},
      issn         = {0361-5995},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {PreJuSER-62630},
      pages        = {1033 - 1040},
      year         = {2008},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Measurement of electrical conductivity by time domain
                      reflectometry (TDR) requires knowledge of the source step
                      voltage, which is often implicitly accounted for in the
                      measured reflection coefficient. Errors may arise, however,
                      from imperfect amplitude calibration when transforming the
                      voltage signal into the reflection coefficient signal. This
                      instrument error was identified as a considerable source of
                      error in addition to cable resistance for TDR electrical
                      conductivity measurements. The effect of the instrument
                      error due to imperfect amplitude calibration was
                      theoretically examined by the direct current circuit model
                      and experimentally verified. The instrument error resulted
                      in an overestimation of electrical conductivity while the
                      cable resistance led to an underestimation. We clarified
                      that the series resistors model for correction of cable
                      resistance is accurate if the measured reflection
                      coefficient is corrected for the instrument error. A
                      calibration (correction) method for the measured reflection
                      coefficient was proposed to account for both the instrument
                      error and the effect of cable resistance, leading to a
                      simple, accurate, and theoretically sound procedure for TDR
                      electrical conductivity measurements.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Soil Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000257569500017},
      doi          = {10.2136/sssaj2007.0185},
      url          = {https://juser.fz-juelich.de/record/62630},
}