Title :
A DSP lock-in amplifier based on simulink
Author :
Liang, Lei ; Cong, Menglong ; Yu, Hai ; Chen, Chen ; Li, Lei ; Xu, Wenjia ; Wang, Yiding
Author_Institution :
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China, 130012
Abstract :
In order to meet the requirements of mid-infrared gas detection, a high-precision DSP lock-in amplifier is designed with MATLAB/Simulink and DSP. By using Target for TI C2000 toolbox which integrates Simulink with TMS320F2812, the automatic generation of C code can be achieved and the programming time can be saved enormously. An AD correction module is added in this paper to ensure sampling accuracy. The high-precision lock-in amplifier design is implemented skillfully by modularized design in Simulink. The experimental results show that the designed DSP Lock-in Amplifier possesses low error(<0.5%) and high stability.
Keywords :
Amplifiers; Automation; Conferences; Control systems; Digital signal processing; MATLAB; Real time systems; DSP; Simulink; TMS320F2812; high-precision; lock-in amplifier;
Conference_Titel :
Information Science and Engineering (ICISE), 2010 2nd International Conference on
Conference_Location :
Hangzhou, China
Print_ISBN :
978-1-4244-7616-9
DOI :
10.1109/ICISE.2010.5688945
