Development of HL-2M data integration and acquisition system for magnetic diagnostics

Abstract

Magnetic measurement and diagnostics are critical for the operation of magnetic confinement experimental facilities and plasma analysis, while differential signals are mostly detected by a detector. For this, we have developed and designed a stable and reliable data integration system for HL-2M magnetic measurement and magnetic diagnostics. The system will be used for realtime control of HL-2M after the construction of HL-2M is completed. The system is built based on the PXI platform, and the software system is based on the LABVIEW platform. Key technologies realized by the system primarily include drift compensation, pulse data acquisition technology, multi-threading processing technology and transmission control communication protocol. Trials of the system were successfully carried out on HL-2A, and the results showed that the system could fully meet the construction needs of HL-2M.

Research on the real-time signal conditioning method for dispersion interferometer in HL-2M

“…Fourth, the ADC transfers the analog signal to digital data. Finally, the FPGA monitors the signal amplitude and adjusts the gain of the PGA to maintain the suitable signal amplitude [17][18][19]. The whole loop delay is less than 1 μs.…”

Design of shifting strategy for capacity adjustment device of power reflux hydraulic transmission systems based on working condition identification

“…PXI systems are widely used because of their good verification accuracy in real-time control strategy applications. 27,28 This study used a NI PXI-8119 RT as the slave computer, with a NI PXI-8512/2 CAN board for signal communication between the slave computer and the transmission control unit (TCU), as well as a Woodward ECM-5554-412-0904-xD 32-bit microcontroller as the TCU running the shifting strategy. The HIL verification platform is shown in Figure 12.…”