Online monitoring is the process of utilizing permanently mounted sensors to regularly check the condition of a machine. Online monitoring should consist of more than just vibration sensors. Given there are many different failure modes it is best to utilize a variety of sensor types to monitor the necessary variable to ensure early warning of failure.
- Dr. M. David Howard
- Erbessd Instruments
Vibration analysis requires a correct identification of the rotational speed of the machine. How the different frequencies of the spectrum are related to RPM, identifying with high accuracy the order of each frequency, is essential for the analysis process.
The 2020 calendar year has certainly brought with it many challenges for a variety of industries. The medical field, pulp and paper industry and food supply chain have all been significantly impacted by the unprecedented COVID-19 pandemic. At the grocery store, people experienced (or are still experiencing) empty shelves, limited food supply and less variety when doing weekly shopping. In March 2020, grocery and supply sales increased 29% from the previous year (3).
- Spectro Scientific
- Spectro Scientific
More than 300 million electric motors are used in infrastructure, large buildings, and industry globally. These motors account for about 2/3rds of the industrial power consumption. Electricity is required in almost all areas of the plant to provide the driving force that either operates the equipment that produces the products or provides the services that the plant’s equipment was built to perform..
- Mark Koch
- ALL-TEST Pro, LLC
Dashboards are a great way to present data effectively. They can display an overview of your plant’s current condition monitoring status as well as historical data. A dashboard can meet specific needs, such as to display data for a particular application, e.g., a hoist, fan, machine tool, rotary calciner, conveyor, or any other critical piece of equipment. Or it can visualize process data, enabling operators to act on changes quickly.
- Göran Almqvist
- SPM Instrument AB
Variable frequency drives (VFDs) have become a preferred method of process control for electric motor driven equipment ranging from vertical water pumps to centrifugal air fans. The following is a basic discussion of risks of using a VFD with direct driven centrifugal fans and methods of mitigating those risks to maintain equipment reliability.
- David Sheffler
- IVC Technologies
Condition-based maintenance is an important strategy used to achieve the quality and capacity that is required in manufacturing today. To achieve these goals, vibration analysis is helpful for determining rotating equipment condition and performance. Collecting correct and usable vibration data is critical to the success of any vibration analysis program. Unfortunately, there are challenges that must be overcome in order to provide this data that were not necessarily issues in the past.
- Bob Martin
- IMI Sensors