Laszlo J. Dobos

Picosecond time interval measurements

Efficient measurement techniques have been developed to adequately characterize the performance of a new generation of programmable equivalent time sequential sampling oscilloscopes. These instruments provide time interval measurements with increased repeatability and accuracy. The same characterizations are applicable to more general time interval measurement, and subpicosecond repeatability for rise time measurement of fast step generators ( >

Advancements in picosecond resolution time interval measurement techniques

New, efficient measurement techniques are used to adequately characterize the actual performance of the new generation of programmable equivalent time sequential sampling oscilloscopes. These instruments provide new time interval measurement capabilities with increased repeatability and accuracy. Subpicosecond repeatability for risetime measurements of fast step generators (20 ps transition time) has been observed. A typical timebase related peak error of 3 ps for short time interval measurements (up to tens of ns) has been shown. A brief introduction on the horizontal timebase error sources is followed by the description of the automated measurement techniques. Finally actual measurement results are shown using the described techniques.<<ETX>>