An USB-based time measurement system

NUCLEAR ELECTRONICS AND INSTRUMENTAION

An USB-based time measurement system

QIN Xi，

LIU Shubin，

AN Qi

Nuclear Science and Techniques

Vol.21, No.6

pp.366-369

Published in print 20 Dec 2010

DOI：10.13538/j.1001-8042/nst.21.366-369

39700

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.

HPTDCUSBTime measurementHigh resolution

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