Two Cases of Failure Maintenance of Radio Frequency Amplifier in GE SIGNA HDe MR
FAN Qinggang1, QU Jianfeng1, CHU Zhongnan1, XIONG Gang2
1. Department of Medical Engineering, The 988th Hospital of PLA Joint Logistics Support Force, Zhengzhou Henan 450000, China;
2. Department of Conditions Security, Affiliated Hospital of Weifang Medical University, Weifang Shandong 261031, China
Abstract：Radio frequency (RF) amplifier is one of the key system components of MR imaging equipment. It is a component with
high failure rate due to long-term operation at high-power state. This paper first analyzed the working principle of the RF channel and
RF amplifier of HDE series machines, drew a schematic diagram. Then, two cases of RF amplifier failure were selected and analyzed
in depth with the schematic diagram. Finally, the fault point was located at the component level. By replacing the faulty components,
the RF amplifier was successfully repaired, which could provide a reference for the colleagues.
范清刚1，屈建锋1，储中南1，熊刚2. GE SIGNA HDe磁共振RF放大器
故障维修二例[J]. 中国医疗设备, 2023, 38(8): 176-180.
FAN Qinggang1, QU Jianfeng1, CHU Zhongnan1, XIONG Gang2. Two Cases of Failure Maintenance of Radio Frequency Amplifier in GE SIGNA HDe MR. China Medical Devices, 2023, 38(8): 176-180.
