APPARATUS FOR MEASUREMENT OF PERMITTIVITY CAPABLE OF MEASURING FOR PERMITTIVITY OF HIGH TEMPERATURE LIQUID MATERIAL

摘要

The present invention relates to a permittivity measurement apparatus and, especially, to the permittivity measurement apparatus capable of measuring permittivity of a high temperature liquid material, which can measure a complex dielectric constant in a low frequency zone as to the high temperature liquid material by measuring a reflective coefficient by dipping a bottom of the measurement apparatus into the liquid after arranging a signal line in a center of a substrate resistant to heat and surrounding the signal line with a ground line and then exposing a part of the signal line. By the present invention, a part of the signal line is exposed and thus the length of the signal line which contacts the liquid solution can be maintained constantly in case the exposed part of the signal line is dipped into the liquid solution, and therefore, it is possible to measure the permittivity easily. And the apparatus can increase a capacitance value of an end of the measurement apparatus easily by adjusting the length of the signal line exposed to the outside.