PROBE APPARATUS FOR MEASURING RESISTANCE UNDER CONSTANT PRESSURE AND AN EQUIVALENT SURFACE CONTACT, USING A MEASURING CORE OF A 4 POINTS ELECTRIC RESISTANCE OF A CONSTANT PRESSURE TYPE

摘要

PURPOSE: A probe apparatus for measuring resistance under constant pressure and an equivalent surface contact are provided to measure the electric resistance with high precision of a specimen by making the contact between specimen surface and 4 electric resistance measuring cores uniform.;CONSTITUTION: A storage tank(110) stores air or a hydraulic oil. An inflow pipe(120) connects the one-side to the storage tank. The compressor and the inflow pipe includes an opening valve. An outflow pipe(130) comprises the overflow pipe and a vacuum pump which is connected to a other storage tank. Four cylinders(160) comprises a cylinder housing, a piston tip, and an electrical resistivity measurement core. A lead wire(171) is connected to the electrical resistivity measurement core.;COPYRIGHT KIPO 2010