超导型磁共振液氦制冷系统故障传呼报警装置的研制

Development of an alarmer using beep-pager in the detection of the failure of superconductive magnetic resonance′s refrigerator

目的 为了在超导型磁共振液氦制冷系统发生故障后能及时发现和处理 ,研制传呼报警装置。方法 用普通集成电路及电话机组装一个报警器 ,根据冷凝头声音特点来判断制冷系统的工作状态 ,从而监测制冷系统的工作状态。结果 制冷系统发生故障后 ,该报警器可立即自动拨打值班人员的传呼 ,每 5min 1次 ,直至值班人员前来处理为止。结论 该装置价廉、简单、可靠 。

Objective To develope an alarmer using beep-pager to detect and dispose the failure of superconductive magnetic resonance′s liquid helium refrigerator. Methods The alarmer was assembled with common integrate circuit and a telephone set to detect the system′s state according to the characteristic voice of condensation head. Results When the refrigerator failured, the alarmer could automatically dial the beep-pager′s number immediately every 5 minutes until the staff came to dispose the failure. Conclusion The alarmer was cheap and simple, it would be very useful for the hospital equipped with the superconductive magnetic resonance scanner.