Factory ESD engineers typically carry a portable surface resistance tester with them. What is the difference between the results of the test and the bipolar surface resistance tester? Just because it is easy to carry?
The portable surface resistance tester generally uses the plate electrode to test the resistivity of the surface. Taking the SL-030 surface resistance tester as an example, the instrument is easy to operate and easy to carry, and is an ideal choice for measuring the surface resistivity. It can be used to quantify the surface resistance or system resistance of all conductive, antistatic and classic venting materials. It is easy to use and easy to carry. Simply place on the surface of the object and press the red button. The indicator on the instrument ranges from 10^3 to 10^12Ω. One of the LEDs will illuminate according to the test value. The instrument can be used to measure the surface specific resistance (surface resistivity) of various fabrics, carpets, films and other insulating materials. The surface specific resistance can indirectly reflect the length of static leakage time on the surface of the test material, thus reflecting the static electricity of the test material. performance. Because it is small and portable, it can test some conventional ESD products, so ESD is usually carried around.
A two-stage electric rent tester is used to test the point-to-point resistance of the surface of an object. Measurement requirements to measure the resistance between two points independent of ground. The measurement results obtained by this measurement method are related to the processing of the object to be measured, the distance between the two probes, etc. Therefore, the correct measurement procedure should be selected. Each time the test is performed under the same required measurement conditions.
