The Multi-Channel Data Acquisition System Based on FPGA and ADS1252

2014 ◽  
Vol 543-547 ◽  
pp. 2440-2443
Author(s):  
Bing Qi Liu ◽  
Ming Zhe Liu ◽  
Xin Jiang ◽  
Xiao Bo Mao ◽  
Tong Shen
Keyword(s):  
High Resolution ◽  
Data Acquisition ◽  
High Speed ◽  
Data Acquisition System ◽  
Low Noise ◽  
Acquisition System ◽  
Validity And Reliability ◽  
Parallel Acquisition ◽  
Noise Interference ◽  
Clock Domains

In this article, a design of multi-channel data acquisition system is presented. With FPGA as the core controller, the system can implement logic control over the high-speed ADC and acquire high-speed and high-resolution sample data. Using asynchronous FIFO as a cache, it can transfer data between two different clock domains: ADC data acquisition module and RS485 data module, which helps to improve the work efficiency and data throughput of the system. In the Quartus II development platform, Verilog hardware description language is adopted and finite state machine so that parallel acquisition operation to multi-channel ADC controlled by FPGA can be achieved and the system can become equipped with high-resolution, strong real-timeliness, low noise interference and other advantages. When it comes to the final step, simulation of AD sampling, asynchronous FIFO and RS485 transmission are conducted under the Modelsim environment and on-line testing by Signaltap to the system is synchronously implemented. The validity and reliability of the system are verified.

Development of a High-Speed Ion Signal Acquisition System for Mass Spectrometer

2012 ◽  
Vol 239-240 ◽  
pp. 889-894
Author(s):  
Hong Qi Yu ◽  
Yi Nan Wang ◽  
Jin Ling Xing ◽  
Peng Wang ◽  
Hu Sheng Liu ◽  
...  
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Rapid Development ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Signal Acquisition ◽  
High Resolution Data ◽  
Analog To Digital ◽  
Gigabit Ethernet ◽  
High Data

Due to the rapid development of manufacturing technology, high-speed high-resolution data acquisition system has been widely applied in plenty of engineering fields, such as radar, environmental surveillance, mass spectrometry, etc. In order to satisfy the increasing requirement, we present the design of a high-speed data acquisition system, which is mainly composed of high-speed time-interleaved analog-to-digital converter, high data throughput interface based on 10 gigabit Ethernet. The detailed design and realization of each module are presented. Finally we test and analysis the performance of the ion signal acquisition system, and the results show that the system performs fine speed, high precision and stability.

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