The principle and structure of the non-contact eddy current vibrometer are basically the same as that of the eddy current axial displacement meter. The position of the probe is closer to the bearing, and the concentricity of the shaft diameter and the journal is within 0.013 mmn, and the end face of the probe is perpendicular to the axis. That is to say, the vibration value of the bearing body is measured to reflect it. Vibration of the rotor.
There are many reasons for the vibration, such as the dynamic unbalance of the rotor itself, the vibration interference of the driving machine, and the gas resonance of the system. The total amplitude measured by the vibrometer is a comprehensive vibration value. If the cause and effect of vibration fault are analyzed in detail, a discretionary oscilloscope with frequency conversion filter or a vibration spectrum analysis device must be added to the original receiving and indicating instrument to measure and record the vibration value of different frequencies.
Now the intelligent vibrometer is easy to operate. The bottom of the small mushroom vibrometer is magnetic and can be placed at the measuring point. It is compact and completely closed.
