集成电路与嵌入式系统2025，Vol.25Issue(3)：59-65,7.DOI:10.20193/j.ices2097-4191.2024.0070
DDS技术在质谱仪射频电源上的应用
Application of DDS on radio frequency power supply of mass spectrometer
摘要
Abstract
The traditional RF power supply of the mass spectrometer is driven by crystal,and its frequency is fixed and nonadjustable,making the debugging of the RF power supply inconvenient in the development stage.A signal source system for RF power supply by u-sing direct digital frequency synthesis(DDS)and embedded technology is designed in order to resolve the deficiency.The system is com-posed of DDS chip and STM32 series microcontroller based on ARM.It can output sine wave signal in single and sweep mode by the control of upper computer.The scanning range of this system is 100 kHz～1 MHz with the precision better than 0.02％under 1 MHz.It can serve as a signal source for multiple RF power supplies.The experiment results show that the Ion trap RF power can output peak-to-peak voltage up to 3.5 kV and resonant frequency 1.013 6 MHz by the drive of the system.关键词
DDS/信号源/射频电源/质谱仪/STM32Key words
DDS/signal source/RF power supply/mass spectrometer/STM32分类
电子信息工程引用本文复制引用
纪志敏,沈辉,侍尉,任维松,陈延龙,景加荣..DDS技术在质谱仪射频电源上的应用[J].集成电路与嵌入式系统,2025,25(3):59-65,7.基金项目
国家重点研发计划资助(2022YFF0707201). （2022YFF0707201）
