Dielectric constant of water from 0 to 100 C

作者：C Malmberg, A. A. Maryott · 发表于：Journal of research of the National Bureau of Standards · 年份：1956 · DOI：10.6028/jres.056.001 · 被引用次数：833 · 研究领域：Scientific Measurement and Uncertainty Evaluation、Advanced Electrical Measurement Techniques、Sensor Technology and Measurement Systems

An equal ratio arm, capacitance-conductance bridge, operated at frequencies below 100 kilocycles per second, was med to measure the dielectric constant of water with an accuracy of better than 0.1 percent at 5-degree intervals over the range .0° to 100° C. At 25° C the dielectric constant was found to have the value 78.30, which is about 0.3 percent lower than t hat usually accepted.The data fit the equation E= 87.740 -0.400081+ 9.398(10-4) tL 1.410 (10-6 )13, with a maximum deviation of 0.01 unit in dielectric constant.The experimental method and sources of error are considered in some detail.