Real-time time drift adjustment for a TDR step stimulus

Details Real-time time drift adjustment for a TDR step stimulus Real-time time drift adjustment for a TDR step stimulus

2006-02-14

2006-02-14

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

C324S642000, C324S601000, C702S066000, C702S067000

Reexamination Certificate

active

06998834

ABSTRACT:
A method for reducing drift in a step stimulus from a sampling system, such as an oscilloscope, is described having an initial step of setting a calibration repetition rate. A step stimulus stabilization calibration is performed to acquire a reference mid-crossing time and the current mid-crossing time. Acquisition cycles of TDR/TDT waveform samples are acquired equal to the repetition rate with the initial strobe delay interval in the sampling system being adjusted by the difference between the reference mid-crossing time and the current mid-crossing time. The step stimulus stabilization calibration is performed again to acquire a new current mid-crossing time and initial strobe delay interval and more acquisition cycles of TDR waveform samples are acquired equal to the repetition rate. The process continues until a stop command is activated for the sampling system.

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