SINGLE-ENDED TEST PROBE HAVING GROUND AND SIGNAL TIPS

摘要

A single-ended test probe includes a probe body such as a coaxial cable, a signal tip integral with the core (signal conductor), to ground arm haying a ground tip and mounted to the coaxial cable, and an electrically conductive ground member projecting outside the coaxial cable and electrically conductively connecting the ground arm to the shield (ground conductor) of the coaxial cable. The ground member may be located closer to the end of the cable than the location at which the ground arm is mounted to the cable to minimize inductance in the connection between the probe and a device under test. The ground member may also be a cam by which the span between the ground and signal tips can be adjusted. Also, the test probe may include a second ground arm that is detachable connectable to the probe body independently of the first.

主权项

1. A single-ended test probe comprising:
a coaxial cable including an electrically conductive core, an electrically conductive shield extending around the core, and an insulating layer interposed between the core and the shield; a signal tip integral with the core at an end of the core and dedicated to contact a signal point of a device under test; a ground arm mounted to and supported by the coaxial cable at a first location along the length of the cable, the ground arm haying a ground tip dedicated to contact a ground point of the device under test; and an electrically conductive ground member projecting on the outside of the coaxial cable and electrically conductively connecting the ground arm to the shield at a second location offset from the first location along the length of the coaxial cable, the second location being between the first location and the ground tip along the length of the coaxial cable.