Active probe for e.g. oscilloscope, has repeater isolating probe tip from signal lines, and switching device conductively connecting probe tip with signal line such that excitation signal applied to signal line is injectable into circuit

摘要

The probe (31) has a probe tip (32) for contacting a circuit to be tested, and a repeater (34) for isolating the probe tip from a set of signal lines (S 1, S 2, S i). A potential adjacent to the probe tip is transmitted to the signal lines, and a switching device (35) conductively connects the probe tip with one of the signal lines in such a manner that excitation signal applied to one of the signal lines is injectable into the circuit to be tested. An independent claim is also included for a method for operating an active probe.