The tuning fork level switch is also commonly referred to as the tuning fork level meter or tuning fork level controller, mainly because the tuning fork level meter appears in different stages of industrial production and plays a different critical role in practice. People have become accustomed to calling it many different names. So what is the principle of a tuning fork level switch?

　　The tuning fork level switch is a type of level switch that mainly uses the principle of tuning fork resonance to measure the level status. Its unique fork design and inherent vibration characteristics can ensure the automatic clearing function of the tuning fork and prevent material hanging to the greatest extent.

　　The working principle of a tuning fork level switch is to vibrate the tuning fork at a certain resonance frequency through a pair of piezoelectric crystals installed on the tuning fork base. When the tuning fork of a tuning fork level switch comes into contact with the measured medium, the frequency and amplitude of the tuning fork will change. These changes in the tuning fork level switch are detected, processed, and converted into a switch signal by an intelligent circuit.

　　As the tuning fork level switch has no moving parts, it does not require maintenance or adjustment and is an upgraded product of the float switch. Widely used in tap water, mineral water, pulp, glue, dyes, slurries, alkaline solutions, acid solutions, beer, beverages, petrochemicals, light industry, food, water treatment, liquids that can produce gases, solid powders or particles with good fluidity. Alarm and control the upper and lower limits of the material level.

　　In general, the principle introduction of the tuning fork level switch is roughly as follows: the tuning fork is excited by crystals to generate vibration. When the tuning fork is immersed in liquid or solid, the vibration frequency changes. This frequency change is detected by electronic circuits and outputs a switching value.

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