Static Measurement: How Is Static Electricity Measured?

The first step in solving a static electricity problem is to measure it. A static meter shows the level and polarity (+/−) of the static charge on insulating materials such as plastic, paper and fabric. Measurement helps you determine what kind of antistatic solution is needed at which point, and verify the effect of the solution once it is in place.

Where should you measure?

Static charge builds up most where the material separates from a surface: as film leaves a roller, as a reel unwinds, as paper or fabric passes over cylinders and as sheets are stacked. Start at the point where the problem appears and take measurements at these critical points on the line.

Three steps from measurement to solution

1. Measure: Determine the level and polarity of the charge at the point where the problem appears. The static meter measures from a distance of 1–10 cm.
2. Eliminate: Install a suitable static eliminator based on the measurement result and the distance.
3. Verify: After installation, measure again at the same point to check that the charge has been removed.

Frequently asked questions

Why is it important to know the polarity of the charge? Knowing the polarity helps you understand the source of the problem and choose the correct polarity, particularly in static charging applications.

Can a static eliminator be selected without a measuring device? An initial selection can be made from the distance, material and line data; however, measurement shows exactly where the problem is and how effective the solution is.