Abstract: | This paper presents a new method which is used to measure time delay accurately by using a Type 900-LB Slotted Line. The accuracy for calibrating time delay of a precision coaxial air line Type 900-L is about +/- (0.4-0.6)ps, and for coaxial cables with VSWR less than 1.5 and time delay t less than 50ns is about +/- (3-5)ps. Theoretical analysis and mathematical derivation of microwave networks in cascade are given in this paper. Methods to eliminate the errors which are caused by the discontinuities and the error analysis of the measuring system are presented. In the last part of this paper, skin effect analysis of the transient characteristic of coaxial transmission line are discussed in detail. Methods to eliminate the errors which are resulted from using the calibrated time delay standard to calibrate time interval measurement instruments are presented. The estimation of errors and formulae for correction of those errors are described. |
Published in: |
Proceedings of the 14th Annual Precise Time and Time Interval Systems and Applications Meeting November 30 - 3, 1982 NASA Goddard Space Flight Center Greenbelt, Maryland |
Pages: | 155 - 180 |
Cite this article: | Su, Bing-Wei, Song, Su-Xiu, "A New Calibration Method for Time Delay Standard and its Application," Proceedings of the 14th Annual Precise Time and Time Interval Systems and Applications Meeting, Greenbelt, Maryland, November 1982, pp. 155-180. |
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