By Stephen Milligan
Ultrasonics is a competent and confirmed know-how for point dimension. it's been used for many years in lots of varied industries equivalent to water remedy, mining, aggregates, cement, and plastics. Ultrasonics offers more desirable stock accuracy, technique keep watch over, and person protection. knowing Ultrasonic point size is a accomplished source within which you are going to find out about the historical past of ultrasonics and detect insights approximately its structures, set up and functions. This ebook is designed with many basic gains and very important assets together with: • Real-life program tales • Diagrams and proposals that reduction either the beginner and complicated person within the choice and alertness of an ultrasonic point dimension process • thesaurus of terminology
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Additional info for Understanding Ultrasonic Level Measurement
There are four selection methods: • measure the area of each echo • measure the height of each echo • measure the first moving echo • select the first significant echo For the MultiRanger, Largest or First are the preferred algorithms. For the AiRanger, together it’s ALF. These methods can be referred to as Area, Largest, and First algorithms (ALF). Another method uses Tracker where the user selects/ deselects the algorithm standard settings. Sonic Intelligence uses all four algorithms on each measurement.
Storing the echo profile in memory makes it possible to perform the many tests on the data necessary to determine the true material echo. Digital filtering Digital filtering removes unwanted noise from the echo profile, including electrical noise always present in an industrial environment. For example, variable speed motor drives produce high levels of electrical noise that are usually very high in amplitude yet very short in duration when compared to the data being gathered for the echo profile.
If the new echo is outside of the window, it is not accepted until echo lock requirements are satisfied. These three processes work away in the background as the Sonic Intelligence software determines the best echo. However, the echoes can be further tuned should it be necessary. Echo quality Echo quality and confidence can be further tuned using the information provided by the device from the following features. Figure of merit Figure of Merit (FOM) measures the quality of the reported process value: higher values represent better quality.
Understanding Ultrasonic Level Measurement by Stephen Milligan