Amplifier for shaft vibration displacement of the turbine unit
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Is there one in the amplifier box for measuring the phase displacement of the unit’s shaft vibration? What are you all, exactly? Use Bentley’s eddy current measurement method
It is used for accident analysis, and it records the trajectory of the shaft’s eccentric angle
How is the trajectory of the axis’s eccentric angle reflected – through shaft vibration or shaft displacement?
This one. . . . . . In addition to vibration and displacement. . . . . . . . Set a set of key phases. Key phase measurement involves installing a groove on the shaft under test, known as a key phase mark. When this groove moves to the probe position, it results in a sudden change in the distance between the probe and the surface being measured; the sensor then generates a pulse. One pulse is produced for each full rotation of the shaft, and the timing of these pulses indicates the position of the shaft during each rotation cycle. Therefore, by counting the pulses, the rotational speed of the shaft can be measured, and by comparing the pulses with the vibration signals of the shaft, the phase angle of the vibration can be determined, which is useful for dynamic balance analysis of the shaft as well as for fault analysis and diagnosis of equipment.
Expert. . . . . . . . .