| 摘要 |
PROBLEM TO BE SOLVED: To simply measure the dielectric constant of a liquid in a simple manner, and to improve the measurement accuracy. SOLUTION: An apparatus for measuring the dielectric constant of a liquid includes a storage space 11, where the liquid is inserted into a conductive container 1, and the container serves as the first electrode. The opening 11a of the storage space 11 is sealed with a lid 2, having a core wire 25 serving as the second electrode that protrudes. During the measurement, a measurement system is calibrated by an open-type, short-circuited and loaded calibration lids 41, 42 and 43 in a shape which is similar to that of the lid 2. In addition, a fringe capacitance regarded as a measurement error is measured, in advance, by means of the calibration lid 41, and the accuracy in measuring the dielectric constant is improved by subtracting the error due to the fringe capacitance from the actual measurement result. COPYRIGHT: (C)2011,JPO&INPIT |
