【摘要】 振动监测是目前国内外用于机械设备工况监视方面的主要方法之一。本文介绍的四通道振动巡回监测仪是将传感器输出的信号经前置处理、检波、压频变换后送AT89C2051单片机计数并显示输出。它被设计成适用于工业现场重要辅机的长期监测，可选择电涡流位移型和磁电速度型两种传感器，所显示数值也可以根据需要选择位移或速度量纲，具有精度高，稳定性好，免维护的特点。更多还原

【Abstract】 Vibration monitoring is the main method to monitor the working conditions of machinery and devices in our country and out of world. The article introduces how Four-channel Vibration Cycle Monitor deals with the sensors output signals. The sig-nals are pretreated, demodulated, voltage-to-frequency converted and transmitted to mi-croprocessor AT89C2051 to be counted and displayed. This instrument is suitable for long-term monitoring of the critical assistant-machine in the industrial spots. It is able to work with two types of sensors-eddy-current displacement sensor and magnetoelectric velocity sensor. It can display displacement or velocity dimension with high precision and work stably without maintenance.更多还原