COUNTERMEASURE DEVICE AGAINST ABNORMAL VIBRATION

摘要

PURPOSE:To stop a device when abnormal vibration occurs in the device by providing a vibration meter, a DC smoothing circuit and a comparator. CONSTITUTION:A DC smoothing circuit 10 smoothes the analog signal from a vibration meter 16, and a constant level is obtained. When the input level of the DC smoothing circuit 10 exceeds the preset level of a variable resistor 18, a comparator 12 outputs the signal. The vibration meter 16 is attached to an object device to be protected, and the vibration of the device is detected. The analog signal from the vibration meter 16 is converted into the signal at the constant level in the DC smoothing circuit 10 and compared with the preset level of the variable resistor 18. When the preset level is exceeded, the signal is outputted. When the abnormal vibration occurs in the object device to be protected, the countermeasure is taken by the signal.