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Condition monitoring (or, colloquially, CM) is the process of monitoring a parameter of condition in machinery (vibration, temperature etc.), in order to identify a significant change which is indicative of a developing fault. It is a major component of predictive maintenance. The use of condition monitoring allows maintenance to be scheduled, or other actions to be taken to prevent failure and avoid its consequences. Condition monitoring has a unique benefit in that conditions that would shorten normal lifespan can be addressed before they develop into a major failure. Condition monitoring techniques are normally used on rotating equipment and other machinery (pumps, electric motors, internal combustion engines, presses), while periodic inspection using non-destructive testing techniques and fit for service (FFS)〔API 579/ASME FFS-1: "Fitness-For-Service" (2007)〕 evaluation are used for stationary plant equipment such as steam boilers, piping and heat exchangers. ==Condition monitoring technology== The following list includes the main condition monitoring techniques applied in the industrial and transportation sectors: * Vibration Analysis and diagnostics 〔J. Rafiee and P.W. Tse, Use of autocorrelation in wavelet coefficients for fault diagnosis, Mechanical Systems and Signal Processing, 23 (2009) 1554–72.〕 * Lubricant analysis 〔ASTM D6595-00: "Standard Test Method for Determination of Wear Metals and Contaminants in Used Lubricating Oils or Used Hydraulic Fluids by Rotating Disc Electrode Atomic Emission Spectrometry" (2011)〕 * Acoustic emission (Airborne Ultrasound) * Infrared thermography * Ultrasound testing (Material Thickness/Flaw Testing) * Motor Condition Monitoring and Motor current signature analysis (MCSA) Most CM technologies are being slowly standardized by ASTM and ISO.〔J Michael Robichaud: "(Reference Standards for Vibration Monitoring and Analysis )"〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「condition monitoring」の詳細全文を読む スポンサード リンク
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