DIELECTRIC SPECTRUM MEASURING SYSTEM USING CO-AXIAL TYPE LF/RF DIELECTRIC SENSOR WITH FIXTURE

摘要

PURPOSE: A dielectric spectrum measuring system by dielectric sensor common coaxial type LF/RF with sensor fixture is provided to secure electric/structural stability by having a coaxial dielectric sensor and a sensor fixture. CONSTITUTION: An high temperature control system(2) comprises a cylindrical hot-wire cap, a thermo-couple and a temperature controller to control a coaxial type sensor body(1). The cylindrical hot-wire cap is wound around a hot-wire which covers the coaxial type sensor body(1). A low temperature control system(6) covers the cylindrical hot-wire cap. The low temperature control system(6) includes a heat conduction inner wall and an insulation outer wall. The low temperature control system controls temperature by injecting liquid nitrogen between the inner wall and the outer wall. An impedance measuring instrument(4) is connected at the coaxial type sensor body(1). The impedance measuring instrument(4) measures an impedance of a sample positioned in the cylindrical sensor body(1). An sensor fixture(3) connects the impedance measuring instrument(4) to the cylindrical sensor body(1). A computer(5) controls the high temperature control system(2) and the low temperature control system(6) and analyzes measuring data.