Method and system for monitoring a piston rod

Details Method and system for monitoring a piston rod Method and system for monitoring a piston rod

2006-01-03

2008-08-26

Barlow, Jr., John E. (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

Reexamination Certificate

active

07418355

ABSTRACT:
A method for monitoring a condition of a piston rod of a reciprocating compressor is provided. The piston rod having a length defined between a piston end and a crosshead end. The method includes positioning a first probe with respect to the piston rod along a x-axis and positioning a second probe with respect to the piston rod along a y-axis coplanar with and substantially perpendicular to the x-axis. A current ringing vibration amplitude greater than ten times a maximum of a one-hour average and a noise floor at a ringing frequency is detected, and a bent rod condition is diagnosed.

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patent: 7007563 (2006-03-01), Spiegl et al.
patent: 7056097 (2006-06-01), Lake
patent: 7186094 (2007-03-01), Edlund et al.

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