Specific Process Knowledge/Characterization/Four-Point Probe: Difference between revisions
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The set-up of the four point probe is four the tungsten carbide electrodes/probes. | The set-up of the four point probe is four the tungsten carbide electrodes/probes. | ||
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[[Image:Probe_diagram.PNG|thumb|200x200px|Probe diagram]] | |||
The power source (DC) sends a current through the two outer electrodes. A digital voltage meter (DVM) measures the potential drop between the two inner electrodes. | The power source (DC) sends a current through the two outer electrodes. A digital voltage meter (DVM) measures the potential drop between the two inner electrodes. | ||