Design of a high speed data acquisition system for biological mass spectrometers / 军事医学
Military Medical Sciences
; (12): 510-515, 2017.
Article
em Zh
| WPRIM
| ID: wpr-617248
Biblioteca responsável:
WPRO
ABSTRACT
Objective To develop a high-speed data acquisition system with sampling frequency of 2 GHz to meet the requirement of accurate measurement of flight time.Methods The ALTERA STRATIX Ⅲ series FPGA was used as the main control chip, matching with high-performance ADC chip with sampling frequency up to 2 GHz and sampling accuracy up to 12 bit, while extending 512 MB DDR3 SDRAM for data cache and exchanging data with the host computer through Gigabit Ethernet.In addition, a variety of PCB wiring methods were used to effectively ensure the signal integrity.Results The 250 MHz sine signal was input into the data acquisition board with 2 GHz sampling frequency,by analyzing and calculating the sampling data,acquired the following performance index of SNR=44.6639 and ENOB=7.1.Conclusion This high-speed data acquisition system based on ADC technology is a fast and reliable path and method for the measurement and analysis of biological mass spectrometry data.
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Índice:
WPRIM
Idioma:
Zh
Revista:
Military Medical Sciences
Ano de publicação:
2017
Tipo de documento:
Article