Signal acquisition system having probe cable termination in a signal processing instrument
US8456173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2010 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Dec 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/06788
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A signal acquisition system has a signal acquisition probe having probe tip circuitry coupled to a resistive center conductor signal cable with the signal cable coupled to a signal processing instrument via an input node. The input node is coupled to an input current amplifier via input circuitry. The input circuitry provides at least one of resistive and capacitive termination of the resistive center conductor signal cable. The termination of the resistive center conductor signal cable in the signal processing instrument provides a signal acquisition system where the capacitive loading of a device under test at higher frequencies is reduced by reducing the input capacitance of the probe tip circuitry resulting in an increase in the signal acquisition system bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.