Patent ID: 7659742

Claim:
A vacuum chamber AC/DC probe system for acquiring voltage signals from electrical circuitry that is located within a vacuum chamber, the probe system comprising: (a) a probe head adapted for location within the vacuum chamber, the probe head including electronics for acquiring both AC voltage signals and DC voltage signals from the electrical circuitry, the probe head including a non-vacuum AC/DC probe system a vacuum DC probe head; and an operational amplifier formed as part of the vacuum DC probe head, the operational amplifier being adapted to render the vacuum DC probe head capable of acquiring AC voltage and DC voltage signals from the electrical circuitry, the AC voltage signals and the DC voltage signals being compatible with the non-vacuum AC/DC probe system; (b) a power supply connected to the probe head to provide power to the probe head; and (c) a control and adjustment module connected to the probe head to receive the AC voltage signals and the DC voltage signals from the probe head and to provide the AC voltage signals and the DC voltage signals to a test unit.