Introduction
In the industrial sector, monitoring and measuring vibrations is crucial for adequate maintenance and preventing machinery breakdowns. One of the easiest, fastest, and most accurate ways to obtain these measurements is by using a laser vibration meter.
How Does a Laser Vibration Meter Work?
A laser vibration meter is a device used to measure the frequency, velocity, and displacement of a vibration. It works by emitting a laser beam to a surface and measuring the displacement caused by that surface's vibration. The device converts the emitted light into an electric signal that reflects the velocity of the vibration.
Types of Laser Vibration Meters
There are generally two types of laser vibration meters: contact and non-contact meters. Contact types are suited for measuring vibrations on a surface, while non-contact types are best for measuring vibrations on machinery which are difficult to approach. Of the latter, the handheld and fixed laser vibration meters are most commonly used.
Benefits of Using a Laser Vibration Meter
A laser vibration meter provides both vibration velocity and displacement in one reading, offering a comprehensive monitoring system. It is highly accurate and can detect minute vibrations that may indicate an underlying problem in the machinery. Laser vibration meters are often portable, user-friendly and relatively easy to use, and offer a non-invasive way to collect data.
Applications of Laser Vibration Meters
The applications of laser vibration meters are endless, including measuring vibrations in turbines, compressors, pumps, engines, and motors. It is also used to ensure precision in manufacturing equipment and in the aviation industry to prevent metal fatigue and structural failures.
Laser Vibration Meters and Predictive Maintenance
Predictive maintenance is a technique that uses data analysis and monitoring to predict impending machinery failures. By using laser vibration meters to measure the level of vibration, the device collects data on machinery abnormalities and specifies an appropriate maintenance schedule. This technique is cost-effective, reduces downtime, and increases machinery life span.
The Advantages of Using Laser Vibration Meter in Condition Monitoring
Condition monitoring refers to regular equipment testing, recording, and analyzing to check if the machinery is functioning as expected. Laser vibration meters in condition monitoring provide trend graphs that compare readings that allow for comparison between readings and detecting any abnormalities. By detecting any deficiencies early, laser vibration meters can prevent breakdowns and save large amounts of money in the long run.
Disadvantages of Laser Vibration Meters
While laser vibration meters should be the go-to equipment for monitoring vibrations in machinery, they do have some disadvantages. For instance, they are powerless in retrieving readings, and may require a human operator to conduct regular monitoring. Additionally, the cost of laser vibration meters is relatively high for small and medium enterprises, and they require specialized training to ensure correct usage.
Calibration and Maintenance of Laser Vibration Meters
Calibration is key to obtaining precise and accurate measurements using a laser vibration meter. Regular calibration ensures that the readings are consistent, that the meter is functioning as expected, and that it remains in good condition. Maintenance is another crucial aspect that ensures the longevity and function of the meter. Regular maintenance includes checking the battery level, cleaning the laser surface, and inspecting the overall condition of the instrument.
Conclusion
Laser vibration meters are incredible devices that aid in predicting machinery breakdown, saving on the costs of downtime and expensive repairs. They are extensively used in industries like aviation, manufacturing, and oil drilling, where checking machinery condition is vital. By providing both vibration displacement and velocity, they offer a comprehensive monitoring system that allows for early detection of potential issues. Regular calibration and maintenance are critical to ensure the laser vibration meter remains in optimal working condition.