CMI563 SRP 4-sided copper probe

SRP - 4-sided copper probe is a professional accessory equipped with Hitachi (Oxford) CMI563 series copper thickness gauge, which is specially used to test the thickness of the copper layer on the surface of the circuit board. In the printed circuit board (PCB) manufacturing industry, accurate measurement of surface copper thickness is a key link to ensure product quality and stable performance. SRP - 4-sided copper probe is designed to meet this demand.   Surface cooper probe SRP-4 Application: The SRP-4 Probe is used on Hitachi (Oxford) instrument CMI700 and CMI563 to test the surface cooper thickness.   Surface copper (SRP-4 probe) test principle Surface Cu SRP-4 probe Measured by the principle of microresistance, the SRP probe has four probes, the two probes on the outside are a constant current source, and the two probes on the inside are a voltmeter. When measuring, four probes must simultaneously contact the copper surface to form a loop. According to the formula R=U/I, the resi…

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