Design of High-Precision Frequency Measure System Based on CPLD Time Delay Unit
Introduced a method for high-precision frequency measurement, which do do not need the complicated measuring control circumstance. CPLD is used for improving the precision of measurement by the method of quantization time-delay. High precision frequency adjustable module based on the method has been used on the photoelectricity data acquisition system. Frequency accuracy is - 8.306×10-10, which meet the requirement of instrument.
Feng Qian Ding Wei Wang Hao
Institute of Seismology, China Earthquake Administration, 40＃ Hongshan Road, Wuchang District, Wuhan, China
国际会议
3rd International Photonics & OptoElectronics Meetings(第三届国际光子与光电子学会议 POEM 2010)
武汉
英文
1-5
2010-11-03（万方平台首次上网日期，不代表论文的发表时间）