Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2010, Vol. 21 ›› Issue (6): 366-369 doi: 10.13538/j.1001-8042/nst.21.366-369

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An USB-based time measurement system

QIN Xi~(1,2) LIU Shubin~(1,2) AN Qi~(1,2,*)   

  1. 1 Key Laboratory of Technologies of Particle Detection & Electronics,Chinese Academy of Sciences,Hefei 230026,China 2 Anhui Key Laboratory of Physical Electronics,Department of Modern Physics,University of Science and technology of China,Hefei 230026,China
QIN Xi, LIU Shubin, AN Qi . An USB-based time measurement system.Nuclear Science and Techniques, 2010, 21(6): 366-369     doi: 10.13538/j.1001-8042/nst.21.366-369

Abstract:

In this paper,we report the electronics of a timing measurement system of PTB(portable TDC board), which is a handy tool based on USB interface,customized for high precision time measurements without any crates. The time digitization is based on the High Performance TDC Chip(HPTDC).The real-time compensation for HPTDC outputs and the USB master logic are implemented in an ALTERA's Cyclone FPGA.The architecture design and logic design are described in detail.Test of the system showed a time resolution of 13.3 ps.

Key words: HPTDC, USB, Time measurement, High resolution