UWT offers the Mononivo Series 4000 for this purpose, which detects materials from a bulk density of 20 g/l and has a 1" process connection.įind out more about our vibration fork series Vibranivo® and our vibration rod series Mononivo®. Vibrating forks are therefore well suited for small vessels and solids with large particle sizes. In addition, there is no danger of solids with a large grain size becoming jammed, which leads to faulty switching in tuning forks. With the vibrating rod, only one rod vibrates, which means that the vibrating rod can be built much more compactly. For this purpose, UWT offers the Vibranivo series 10, which detect materials with a bulk density of 50 g/l and more.Īnd are also suitable for interface measurement. These vibrating forks are particularly suitable for strongly adhering materials as well as for the detection of solids in Vibrating fork short = lower sensitivity = higher resonance frequency = stronger self-cleaning effect.Vibranivo Series 20, which can even detect materials with a bulk density < 5 g/l. These vibrating forks are particularly suitable for very light and few adhering materials. Vibrating fork long = higher sensitivity = lower resonant frequency = lower self-cleaning effect.The mechanical movement of arms of the tuning fork could be interpreted as a transversal wave, but it's actually more of vibration. There is a relationship between resonant frequency, leg length, sensitivity and self-cleaning effect: at 17:40 Add a comment 2 Answers Sorted by: 2 The acoustic wave in air is a longitudinal wave. Due to the oscillation of the tines, a certain self-cleaning effect is created. Vibration fork level switches consist of two tines vibrating at their mechanical resonance frequency. The first flexible mode of a tuning fork is characterized by symmetric vibration of the tines: they move towards and away from each other simultaneously, balancing the forces at the base. Vibrating level limit switches are differed between vibration fork and vibrating rod, which differ in their mechanical design but not in their operating principle. When struck on one of its prongs or tines, it vibrates at its fundamental (first) frequency and produces an audible sound. UWT vibrating level limit switches are suitable for process temperatures up to 150☌ and process pressures up to 16 bar. The design of this piezo stack largely defines the range of application. The main component of the vibrating level limit switch is a piezo stack which is electrically excited and thereby vibrates. Point level detection with Vibration Level Limit Switchesĭepending on the requirements, vibrating level limit switches are used as full, demand or empty detectors in storage silos or process vessels and are suitable for use in almost all media.
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