Agilent Technologies announced PrecisionProbe software for its award-winning Infiniium 90000 X-series and 90000A series oscilloscopes. The software, which works in conjunction with built-in hardware, lets engineers automatically characterise and correct the response of any path to a scope input, using no external equipment. The analysis provided by PrecisionProbe software improves measurement margins so engineers can make the most accurate measurements possible. The added margins are especially valuable in situations where the probe setups consume measurement margins without it being apparent to the user.
While great care is taken to minimise channel loss in a probing system such as Agilent’s Infiniimax III, cables and probes are inherently lossy. Depending on the configuration, the loss can be substantial at times. At other times it can be just enough to cause variation in measurements, making results inconsistent. Plus, frequency response and phase characteristics can vary from probe to probe, so each probe and cable must be characterised and accounted for to ensure the truest representation of the signal. Agilent’s N2809A PrecisionProbe software helps engineers overcome these challenges by:
* Correcting for cable and channel insertion loss.
* Correcting probing issues such as phase linearity and magnitude flatness.
* Matching frequency response and phase of every cable or probe on a circuit.
* Characterising and compensating for loss on channel paths such as switches without additional equipment.
* Characterising probe impedance profiles.
PrecisionProbe software provides full AC calibration for probes, not just DC calibration and skew correction. It is not dependent on externally generated s-parameter characterisation files. These files, commonly generated from other instruments such as time-domain reflectometers or vector network analysers, can be time consuming to set up and require expertise to generate accurate and consistent results. Instead, PrecisionProbe uses a built-in signal source on the oscilloscope to automatically generate the files. A software setup wizard quickly moves engineers through the setup and characterising of channel elements such as probes, cables and switches.
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| Email: | [email protected] |
| www: | www.concilium.co.za/test-measurement |
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