Advanced Search+
Tongyu WU (吴彤宇), Wei ZHANG (张伟), Haoxi WANG (王浩西), Yan ZHOU (周艳), Zejie YIN (阴泽杰). Research on the phase adjustment method for dispersion interferometer on HL-2A tokamak[J]. Plasma Science and Technology, 2018, 20(6): 65601-065601. DOI: 10.1088/2058-6272/aaaa19
Citation: Tongyu WU (吴彤宇), Wei ZHANG (张伟), Haoxi WANG (王浩西), Yan ZHOU (周艳), Zejie YIN (阴泽杰). Research on the phase adjustment method for dispersion interferometer on HL-2A tokamak[J]. Plasma Science and Technology, 2018, 20(6): 65601-065601. DOI: 10.1088/2058-6272/aaaa19

Research on the phase adjustment method for dispersion interferometer on HL-2A tokamak

  • A synchronous demodulation system is proposed and deployed for CO2 dispersion interferometer on HL-2A, which aims at high plasma density measurements and real-time feedback control. In order to make sure that the demodulator and the interferometer signal are synchronous in phase, a phase adjustment (PA) method has been developed for the demodulation system. The method takes advantages of the field programmable gate array parallel and pipeline process capabilities to carry out high performance and low latency PA. Some experimental results presented show that the PA method is crucial to the synchronous demodulation system and reliable to follow the fast change of the electron density. The system can measure the line-integrated density with a high precision of 2.0×1018 m−2.
  • loading

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return