Error Analysis of Nonconventional Electrical Moisture-meter under Simplified Conditions
An electrical apparatus for measuring moisture
content was developed by our laboratory and uses dependence of
electrical properties on water content in studied material. Error
analysis of the apparatus was run by measuring different volumes of
water in a simplified specimen, i.e. hollow plexiglass block, in order
to avoid as many side-effects as possible. Obtained data were
processed using both basic and advanced statistics and results were
compared with each other. The influence of water content on
accuracy of measured data was studied as well as the influence of
variation of apparatus' proper arrangement or factual methodics of its
usage. The overall coefficient of variation was 4%. There was no
trend found in results of error dependence on water content.
Comparison with current surveys led to a conclusion, that the studied
apparatus can be used for indirect measurement of water content in
porous materials, with expectable error and under known conditions.
Factual experiments with porous materials are not involved, but are
currently under investigation.
[1] J. D. Shinn, D. A. Timian, and R. M. Morey, "Development of a CPT
deployed probe for in situ measurement of volumetric soil moisture
content and electrical resistivity", Specialty Conference on Field
Analytical Methods for Hazardous Wastes and Chemicals, Air & Waste
Management Assoc, US EPA, 1997
[2] D.D. Bosch, "Comparison of capacitance-based soil water probes in
coastal plain soils", in Vadose zone journal, no. 4 vol. 3, 2004
[3] C. V. K. Kandala, C. L. Butts, and S. O. Nelson, "Capacitance sensor for
nondestructive measurement of moisture content in nuts and grain",
IEEE Transactions on instrumentation and measurement, no. 5 vol. 56,
2007
[4] S. B. Jones, and D. Or, "Modeled effects on permittivity measurements
of water content in high surface area porous media", in Physica B -
condensed matter, no. 1.4 vol. 338, 2003
[5] J. P. Guilbaud, H. Carvalho, V. Baroghel-Bouny, and A. Raharinaivo,
"Study of the moisture content gradient in a cementitious material by
measuring its impedance and gamma-densitometry", in Materiales de
construccion, no. 257 vol. 20, 2000
[6] K. Ďurana, T. KoreckÛ, M. Lapková, J. Toman, and R. ČernÛ, "Effect of
temperature on liquid water transport in autoclaved aerated concrete",
Thermophysics 2011, Brno: University of Technology, pp. 39-46, 2011
[7] M. Jerman, M. Keppert, J. V├¢born├¢, and R. ─îern├¢: ÔÇ×Moisture and heat
transport and storage characteristics of two commercial autoclaved
aerated concretes", in Cement Wapno Beton, no. 1 vol. 16/78, pp. 18-29,
2011
[8] A. Cataldo, G. Cannazza, E. De Benedetto, L. Tarricone, M. Cipressa,
"Metrological assessment of TDR performance for moisture evaluation
in granular materials", in Measurement, no. 2 vol. 42, 2009
[9] A. Cataldo, L. Tarricone, M. Vallone, F. Attivissirno, and A. Trotta,
"Uncertainty estimation in simultaneous measurements of levels and
permittivities of liquids using TDR technique", in IEEE Transactions on
instrumentation and measurement, no. 3 vol. 57, 2008
[10] U. Rosenbaum, J. A. Huisman, J. Vrba, H. Vereecken, H. R. Bogena,
"Correction of Temperature and Electrical Conductivity Effects on
Dielectric Permittivity Measurements with ECH(2)O Sensors", in
Vadose zone journal, no. 2 vol. 10, 2011
[11] Guide to the expression of uncertainty of measuremen, Saudi Arabian
standards organization, Rijad, 2006
[12] D. N. Joanes, and C. A. Gill, ÔÇ×Comparing measures of sample skewness
and kurtosis", in The Statitian, vol. 47, Part 1, pp. 184, 1998
[13] S. Burke, "Statistics in context: Significance testing", in VAM
Bulletin 17, pp. 18-21, 1997
[1] J. D. Shinn, D. A. Timian, and R. M. Morey, "Development of a CPT
deployed probe for in situ measurement of volumetric soil moisture
content and electrical resistivity", Specialty Conference on Field
Analytical Methods for Hazardous Wastes and Chemicals, Air & Waste
Management Assoc, US EPA, 1997
[2] D.D. Bosch, "Comparison of capacitance-based soil water probes in
coastal plain soils", in Vadose zone journal, no. 4 vol. 3, 2004
[3] C. V. K. Kandala, C. L. Butts, and S. O. Nelson, "Capacitance sensor for
nondestructive measurement of moisture content in nuts and grain",
IEEE Transactions on instrumentation and measurement, no. 5 vol. 56,
2007
[4] S. B. Jones, and D. Or, "Modeled effects on permittivity measurements
of water content in high surface area porous media", in Physica B -
condensed matter, no. 1.4 vol. 338, 2003
[5] J. P. Guilbaud, H. Carvalho, V. Baroghel-Bouny, and A. Raharinaivo,
"Study of the moisture content gradient in a cementitious material by
measuring its impedance and gamma-densitometry", in Materiales de
construccion, no. 257 vol. 20, 2000
[6] K. Ďurana, T. KoreckÛ, M. Lapková, J. Toman, and R. ČernÛ, "Effect of
temperature on liquid water transport in autoclaved aerated concrete",
Thermophysics 2011, Brno: University of Technology, pp. 39-46, 2011
[7] M. Jerman, M. Keppert, J. V├¢born├¢, and R. ─îern├¢: ÔÇ×Moisture and heat
transport and storage characteristics of two commercial autoclaved
aerated concretes", in Cement Wapno Beton, no. 1 vol. 16/78, pp. 18-29,
2011
[8] A. Cataldo, G. Cannazza, E. De Benedetto, L. Tarricone, M. Cipressa,
"Metrological assessment of TDR performance for moisture evaluation
in granular materials", in Measurement, no. 2 vol. 42, 2009
[9] A. Cataldo, L. Tarricone, M. Vallone, F. Attivissirno, and A. Trotta,
"Uncertainty estimation in simultaneous measurements of levels and
permittivities of liquids using TDR technique", in IEEE Transactions on
instrumentation and measurement, no. 3 vol. 57, 2008
[10] U. Rosenbaum, J. A. Huisman, J. Vrba, H. Vereecken, H. R. Bogena,
"Correction of Temperature and Electrical Conductivity Effects on
Dielectric Permittivity Measurements with ECH(2)O Sensors", in
Vadose zone journal, no. 2 vol. 10, 2011
[11] Guide to the expression of uncertainty of measuremen, Saudi Arabian
standards organization, Rijad, 2006
[12] D. N. Joanes, and C. A. Gill, ÔÇ×Comparing measures of sample skewness
and kurtosis", in The Statitian, vol. 47, Part 1, pp. 184, 1998
[13] S. Burke, "Statistics in context: Significance testing", in VAM
Bulletin 17, pp. 18-21, 1997
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:62757", author = "Kamil Ďurana and Robert Černý", title = "Error Analysis of Nonconventional Electrical Moisture-meter under Simplified Conditions", abstract = "An electrical apparatus for measuring moisture
content was developed by our laboratory and uses dependence of
electrical properties on water content in studied material. Error
analysis of the apparatus was run by measuring different volumes of
water in a simplified specimen, i.e. hollow plexiglass block, in order
to avoid as many side-effects as possible. Obtained data were
processed using both basic and advanced statistics and results were
compared with each other. The influence of water content on
accuracy of measured data was studied as well as the influence of
variation of apparatus' proper arrangement or factual methodics of its
usage. The overall coefficient of variation was 4%. There was no
trend found in results of error dependence on water content.
Comparison with current surveys led to a conclusion, that the studied
apparatus can be used for indirect measurement of water content in
porous materials, with expectable error and under known conditions.
Factual experiments with porous materials are not involved, but are
currently under investigation.", keywords = "device, capacitance method, error analysis, moisture
meter", volume = "6", number = "7", pages = "621-4", }