Anti-static tape detection
First, point-to-point resistance and system resistance testing
The temperature and humidity conditions during the test were: temperature: 23 ± 3 ° C, relative humidity: 40% - 60% ± 5%.
Check that the device under test and the megger electrode are clean. If necessary, clean with a soft cloth dampened with 70% isopropyl alcohol.
Place the sample to be tested on an insulating plate, and then insert the micro-micro-electrodes into the socket of the megohmmeter according to the color.
The mini electrode was evenly pressed in half and the 10V file of the megohmmeter was recorded for testing. If the reading is <1.0×10 ^ 7 ohms, continue to use this file for testing. If the reading is > 1.0 × 10 ^ 7 ohms, replace it with 100V. The file used for testing. Wait for the reading to stabilize reading to complete the test. Use the same procedure to take multiple locations on the sample to be tested for testing.
Second, the friction voltage test
Friction is used for triboelectric charging and the triboelectric voltage is tested using a non-contact electrostatic voltmeter. The frictional electrified friction electrode has a cylindrical shape, a diameter of 50 mm to 60 mm, a weight of 1 kg, a volume resistance of more than 1 × 10 ^ 13 ohms, and is wrapped with a high-insulation nylon cloth (the surface resistance is not less than 1 × 10 ^ 13 ohms) to increase the friction. coefficient. During the test, the friction motor began to rub the friction electrode and the object to be tested, the one-way friction was stopped 20 times (time 20s), and the friction track charged voltage was used within 10 seconds with the non-contact test electrostatic voltmeter. (marked SJT 10694-2006)
Take a sample of test length long enough and connect it to the insulation board and connect the electrostatic voltmeter ground cable to the common ground point. Turn on the electrostatic voltmeter and first reset the electrostatic voltmeter to zero according to the operating instructions in the table. Place the probe of the electrostatic voltmeter close to the sample to be tested 2 cm. After the reading is stable, read and record. If the electrostatic voltmeter is sensitive to infrared, adjust the distance between the electrostatic voltmeter and the object being measured, and start reading after combining the two infrared points into one infrared point. When testing the static voltage of the friction, adjust the voltmeter probe to the appropriate distance according to the different voltmeter types. Wipe the sample to be tested with an electrostatic glove for about 20 times, then read and record the maximum reading of the voltmeter.
Friction static voltage and electrostatic voltage standards: determined according to different EHA levels, level 1 <100V, level <2000V.
Third, the separation voltage test
Ground the grounding cable of the electrostatic voltmeter and fix the sample to be tested on the tape holder.
Quickly tear the tape off and close the voltmeter and secure the sample to be tested on the tape holder.
Separation voltage standard: determined according to different EHA levels, level 1 <100V level <2000V.
The remaining samples were tested in this manner.
If testing with a charge analyzer, first adjust the mode to “Field Meter” and remove the electrode plate. Remove the tape to be tested and place it on the sensor, then read and record with KV / M.