从电厂设备安全运行的角度而言,对发电机组的振动监测是很重要的.但是,以前我国水电厂用于现场在线运行的振动监测仪长期运行的稳定性及可靠性问题没有完全解决.针对水电厂需要而研制的第一台摆度振动监测仪BZJ于1987年年底在广东某水电厂投入运行以来,已无故障地在现场在线运行五年多了.本文对该仪器的稳定性及可靠性问题进行了分析讨论. From the perspective of safe operation of power plant equipment, it is very important to monitor the vibration of the generator set, however, the stability and reliability of the long-term operation of the vibration monitor used in on-line operation in our hydropower plant in the past have not been completely solved. The first pendulum vibration monitor BZJ needed by hydropower plants has been running on-line for more than five years without any problems in the field in Guangdong at the end of 1987. In this paper, the stability and reliability of the instrument Sexual issues were analyzed and discussed.