Four point probes are the traditional instruments for determining sheet resistance. However, for many applications, Delcom’s eddy current meters are much more useful.

Unlike four point probes, a Delcom eddy current meter:

• is nondestructive
• reads through insulating layers
• measures moving material
• provides nearly instantaneous readings
• provides real-time process inspection

Additionally, Delcom meters provide better repeatability and involve less cost and hassle than four point probes.