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Measuring filling levels in automated Industry 4.0

03.08.2015

Waycon Positionsmesstechnik GmbH is ideally equipped for the future

An automated measurement of substance filling levels in storage containers is essential in Industry 4.0. For a secure and stable production process, continuous monitoring of filling levels is an absolute prerequisite. Waycon Positionsmesstechnik offers needs-based, automated monitoring of filling levels for many industries.

These can be split into two main types:

  • Monitoring the filling level for the feeding and timing of the filling process as well as the retrieval of stock status.
  • Initiating safety measures (e.g. shutting down) when a maximum or minimum filling level is reached

In the first case, we are talking about continuous filling level control. The filling level of the monitored substance can be registered at any time at any position in the container and ensures a continuous reading. The advantage of this is that capacity planning can be adapted for irregular use at any time in the production process.

In the second case, we are dealing with a “level detection”. Predefined maximum and/or minimum filling levels are defined and monitored throughout the production process. If the relevant level limit is exceeded or too low, an action is initiated. This monitoring method is best suited to continuous processes for the timely supply or removal of necessary substances. The level detection also serves as a safety measure, for example to avoid overfilling due to system shut down.

The different methods of filling level measuring

Filling level measuring works via contact or non-contact sensors which determine the distance between the sensor and the object being measured.

Ultrasound filling level measuring

Classic filling level measuring works with the help of ultrasound sensors. Measurement with ultrasound sensors is a non-contact method and is suitable for both continuous filling level control and level detection. Ultrasound sensors release high frequency oscillations, which are reflected through the object being measured. The time difference between the moments of “sending and receiving” is calculated. The advantage of this method is that it is not dependent on the substance used, e.g. oil or water.

Measuring filling level with the magnetostrictive principle

Magnetostrictive sensors are non-contact and free from wear.
A short, constant electrical pulse is sent via a waveguide. A freely moving position magnet reacts to the electrical pulse with a reversed torsion wave. Moving the position magnet produces a different run time for the response pulse. With the help of a pulse converter, this is finally converted into an electronic measurement signal. The magnet is embedded in a float and guarantees permanent registration of the filling level. Magnetostriction is non-contact but the float must make contact with the substance being measured.

Filling level measuring using draw wire sensors

Draw wire sensors are a contact measurement method. A stainless steel wire is coiled in a single layer around a drum with a pre-stressed mainspring. The measurement wire is attached to the object being measured and the is drawn from the drum if the position is changed. The drum’s axis is firmly attached to an electronic element, which converts the mechanical turning movement into a proportional electronic signal. For the filling level measuring, the measurement wire is connected to a float which is in contact with the measuring material.

Filling level measuring with the capacity principle

Capacity sensors measure changes in capacity. Thus the sensor and the object being measured always create a plate, as you find with a plate capacitor. The electronic field in between them is recorded and changes according to the distance. This measurement method is non-contact and is suitable for continuous monitoring and level detection.

WayCon offers suitable measurement engineering for all uses

With WayCon’s intelligent sensor solutions, measuring filling levels is easy and efficient. The Taufkirchen company’s broad production spectrum can be used in practically any industry and for any use. Companies are already equipped for Industry 4.0 with WayCon sensors for their filling level measuring.

You can find more information at www.waycon.de/home/  or
Product portfolio: www.waycon.de/produkte

Background information

WayCon Positionsmesstechnik GmbH has been developing and producing filling level, position and distance sensors since 1999. With their head offices in Taufkirchen near Munich, a second office in Brühl near Cologne and distributors in 28 countries, the innovative company supplies its products worldwide. Our goal is to provide our clients with optimal measurement engineering solutions: From high quality sensors from our standard range to client-specific solutions, from the prototype to range - for different usage areas in industry and research. The products, manufactured in Taufkirchen, are subject to the strictest quality requirements and are delivered without exception with a calibration certificate.


Contact

WayCon Positionsmesstechnik GmbH
Marcus Venghaus
Mehlbeerenstraße 4
82024 Taufkirchen

Email: presse@waycon.de
Website: www.waycon.de/home/ 
Product portfolio: www.waycon.de/produkte 

Cecilia Repgen | WayCon Positionsmesstechnik GmbH

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