Patent ID: 8089267

Claim:
A system for operating a differential probe, wherein the differential probe comprises a first metal extension and a second metal extension both having the same structures, each of the first and second extensions comprises a rotatable base, a rotatable arm, and a contact end, the rotatable base and the contact end of each of the first and second metal extensions extend from opposite ends of the corresponding rotatable arm at an angle respectively, the contact ends and the rotatable bases of the first and second metal extensions are parallel to each other, the system comprising: a controlling device determining a rotated angle of each of the rotatable arms according to a length of each of the rotatable arms, a horizontal distance between the rotatable bases of the first and second metal extensions, and a required horizontal distance between the contact ends of the first and second metal extensions; and a mechanical arm controlled by the controlling device to adjust a horizontal distance between the contact ends of the first and second metal extensions to be the required horizontal distance, by rotating the first metal extension around the rotatable base of the second metal extension clockwise by the rotated angle, and rotating the second metal extension around the rotatable base of the first metal extension counterclockwise by the rotated angle.