| 摘要 |
A test head comprising an electrically conductive cylindrical member for coupling to a device under test, a first path for connecting a first type of signal with the device under test, the first path being located outside the cylindrical member, and a second path for connecting a second type of signal with the device under test, the second path being located inside the cylindrical member, lereby preventing interference between signals of the first and second types. The first type of signal may be a digital signal and the second type of signal may be an analog signal.
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