Four - point probe resistivity measurement / Mohd Shukri Hashim

Today's research and manufacturing are being pressured to improve productivity while reducing costs. Testing and measurement must be accomplised in the shortest possible time and in repeatable manner. This project describes the design and construction of a Four-Point probe resistivity measurement unit with moveable probe. This measurement method is the most widely employed in practice. The system consists of two main parts namely oscillator and mixer circuit.