Research of high precision time interval measurement base on carry chain

Author

Jia Yunfei ; Xu Mengqiang ; Kang Jin

Author_Institution

Sch. of Mech. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China

fYear

2013

fDate

20-22 Dec. 2013

Firstpage

742

Lastpage

745

Abstract

The time interval measurement system with an average resolution of 65ps has been designed in an FPGA chip. The system combines direct pulse counting with digital interpolation using dedicated carry chain inside FPGA. In order to calibrate the time-to-digital converter (TDC), a statistics code density method is adopted. The paper particularly introduces the architecture of the system and the calibration of TDC. Experimental results show that the whole system can be operated simply and functions well.

Keywords

field programmable gate arrays; interpolation; time measurement; time-digital conversion; FPGA chip; TDC; carry chain; digital interpolation; direct pulse counting; field programmable gate array; statistics code density method; time interval measurement system; time-to-digital converter; Calibration; Clocks; Delays; Educational institutions; Field programmable gate arrays; Random access memory; FPGA; calibration; carry chain; time interval; time-to-digital converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on

Conference_Location

Shengyang

Print_ISBN

978-1-4799-2564-3

Type

conf

DOI

10.1109/MEC.2013.6885160

Filename

6885160