Sheet resistance four probe


Four Dimensions' Four Point Probe systems measure the sheet resistance / resistivity / thickness of a wide range of materials. We offer a wide range of models, options, and probe heads to suit your materials', measurement, and budget needs. We can also tailor systems to your special requirements. SRM Probe Head The SRM Probe Head is a plastic bodied four point probe head which is applied by hand. The connection to the probe head from the SRM-232 electronics is via a female RJ45 con-nector which is the same type of connector used for Ethernet connections. The SRM-232 four point probe systems include one SRM measurements where the four STM probes denoted as 1−4 are forming a square, testing configuration I 1V 23 is defined as follows. Probe 1 injects the current (I 1), probe 4 is grounded (G), while probes 2 and 3 are used to measure the potential difference V 23 (V 2 − V 3) between them. The sheet resistances can be obtained after ...