Vibration Analysis
Vibration analysis is one of the key techniques used within condition monitoring. As a machine rotates it naturally vibrates, analysis of the vibration signatures can determine the condition of the equipment. As well as indicating how much the unit is vibrating a well trained and experienced analyst can diagnose a multitude of fault conditions.
These faults include imbalance, shaft misalignment, looseness, bearing damage, gear tooth wear, flow restrictions and motor electrical problems. When a well designed monitoring regime is in place faults can be detected months in advance. This allows maintenance to be carried out at a planned outage rather than the machine failing in service. Using this model thou sands of pounds can be saved in machine damage and lost production. Contact us today to see how we can implement a condition monitoring programme at your site.
Motion Amplification
Motion Amplification is the newest technology to appear on the Condition Monitoring landscape. This brand new video processing technique uses high definition video coupled with vibration analysis to deliver a very visual way of diagnosing machine faults. As a camera is used rather than a standard sensor the vibration data can be gathered remotely with no contact required with the asset. As well as providing vibration data the unique software can amplify the movement of the unit monitored. This allows the analyst to easily determine how the machine is moving and can highlight problems such as cracked bases, misalignment, and resonant pipe work to name but a few.
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Thermal Imaging
Thermal imaging or Thermography as it is also known is a technique which uses infra red radiation to determine the temperature of a surface. The amount of radiation given off is used to create a visual image which clearly shows the temperature variations of an object. Thermal Imaging is commonly used on electrical equipment as components can be surveyed live as contact is not required. Thermal imaging is also very effective for detecting faults with rotating equipment as well as damage to furnace refractory.
Oil Analysis
Regular oil analysis enables you to change your maintenance strategy from reactive to proactive. More often than not lubricating oil is changed at set intervals regardless of condition of the oil or system. This may be based on operational hours or a set time period, this method is called preventative maintenance. However, most of the time the oil and unit may be in a good condition and not only does it waste money in new oil, the process of an oil change can actually introduce contamination into your system that can cause wear and failure of your machinery. As well as determining the condition of the oil, testing can indicate machine condition. Using spectrochemical analysis a breakdown of the lubricants components can be acquired giving a clear picture into the health of your machinery. Typical tests include metal particle count, water content and viscosity which when analysed correctly can pinpoint bearing and gear tooth wear. Regular sampling can produce accurate trends which can easily warn of a change in machine condition
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