Abstract
The theory of the time domain reflectometry(TDR) cable length measurement is investigated. Based on the principle of TDR cable length measurement, the principle error of the TDR cable length measurement is analyzed. The influence of measured cable length, measuring numbers, counting pulse frequency and traveling wave velocity error on measuring accuracy is analyzed. Methods for reducing cable length measurement error are proposed. The simulation results show that the primary task of TDR cable length measurement is to reduce the velocity error. When the velocity errors are small, the length measurement relative error can be significantly improved by increasing the measuring numbers and the counting frequency.
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Song, J., Yu, Y., Gao, H. (2011). Study on Affecting Factors of Time Domain Reflectometry Cable Length Measurement. In: Jin, D., Lin, S. (eds) Advances in Computer Science, Intelligent System and Environment. Advances in Intelligent and Soft Computing, vol 104. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-23777-5_105
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DOI: https://doi.org/10.1007/978-3-642-23777-5_105
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-23776-8
Online ISBN: 978-3-642-23777-5
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