METHODS AND DEVICES FOR USING VIBRATION DATA TO DETERMINE THE CONDITION OF THE CONTROL DEVICE OF THE TECHNOLOGICAL PROCESS

摘要

1. A method including: collecting first vibration data from a first sensor operably connected to a process control device during calibration; calculating an operational threshold of a process control device based on first vibration data and determining a state of the process control device if the second vibration data associated with the process control device obtained after calibration exceeds the operational threshold. 2. The method of claim 1, wherein the first and second vibration data includes acceleration data, speed data, data and displacement, or frequency data. The method according to any one of paragraphs. 1 or 2, further comprising: collecting third vibration data from a second sensor operably coupled to a pipe that is connected to the process control device; calculating a ratio based on second vibration data and third vibration data and determining a state of the control device process when the ratio exceeds a threshold value. 4. The method according to any one of paragraphs. 1 or 2, in which the threshold value depends on the location of the first sensor. 5. The method according to any one of paragraphs. 1 or 2, further comprising: calculating the difference based on the third vibration data and second vibration data and determining a state of the process control device when the difference exceeds a threshold value. 6. The method according to any one of paragraphs. 1 or 2, further comprising: comparing the second vibration data with a known threshold value and determining a state of the control device