Surface resistance testing probe, testing device thereof and surface resistance testing method
A surface resistance and testing device technology, applied in the direction of measuring resistance/reactance/impedance, measuring devices, measuring electrical variables, etc., can solve problems such as large mechanical pressure, resistance deviation from normal resistance, and different resistance performance, so as to ensure good contact, Effect of contact avoidance, good test effect
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[0041] Example 1: A plexiglass plate with a length of 5 cm × a width of 3 cm × a thickness of 1 cm is placed on the surface of the test sample 1 as the insulation module 2. The middle of the plexiglass plate has four Φ5mm, center distance 10mm, and straight-through up and down. Through hole 3, put four copper wires or metal wires 5 into the through hole 3 from above the through hole 3. The length of the copper wire deep into the through hole 3 is 8mm, connect these four copper wires to a resistance tester On the instrument, the connection method is: the metal wire 5 connected with the two through holes 3 outside the four through holes 3 to the current terminal of the resistance tester, and the metal wire 5 connected with the two through holes 3 in the middle of the four through holes 3 The voltage terminal of the resistance tester. Turn on the resistance tester, inject mercury 6 into the four through holes 3 until the liquid level of the mercury 6 is level with the upper surfac...
Example Embodiment
[0042] Example 2: A ceramic plate with a length of 6 cm × a width of 4 cm × a thickness of 2 cm is placed on the surface of the test sample 1 as the insulation module 2. The ceramic plate has four Φ3 mm, center distances 5 mm, and vertical through-holes arranged in a straight line. Hole 3, put four copper wires or metal wires 5 into the through hole 3 from above the through hole 3. The length of the copper wire deep into the through hole 3 is 15mm, and connect the four copper wires to a resistance tester , The connection method is: the metal wire 5 connected to the two through holes 3 outside the four through holes 3 is connected to the current terminal of the resistance tester, and the metal wire connected to the two through holes in the middle of the four through holes 3 is connected to the resistance tester. The voltage terminal. Turn on the resistance tester, and inject mercury 6 into the four through holes 3 until the liquid level of mercury 6 is flush with the surface of ...
Example Embodiment
[0043] Example 3: A polyaniline board with a length of 5 cm × a width of 2 cm × a thickness of 1.5 cm is placed on the surface of the test sample 1 as the insulation module 2. The polyaniline board has four sides of 4 mm in the middle and a center distance of 6 mm, which are arranged in a straight line The through holes 3 through the top and bottom are punched through from the back of the polyaniline board, and then the four aluminum wires, namely the metal wires 5, are put into the through holes 3 from the side of the through holes 3, and the length of the aluminum wires in the through holes 3 is 3mm, connect these four aluminum wires to a resistance tester, the connection method is: the metal wires connected to the two through holes 3 outside the four through holes 3 are connected to the current end of the resistance tester, and the four The metal wires 5 connected to the two through holes 3 in the middle of the hole 3 are connected to the voltage terminal of the resistance te...
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