The working principle 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 the 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, which is almost applicable to all liquid media, such as liquids with explosive and non explosive hazards, corrosive liquids (acids, bases), high viscosity liquids, etc; The tuning fork level switch is not affected by foam, vortex and gas. This tuning fork level switch is also suitable for measuring medium density solid powders or particles that can flow freely.

Shandong Zhongwenda Automation Instrument Co., Ltd. is a domestic emerging automation enterprise specializing in the development, design, and production of level instrument products. The company has strong technical strength, advanced production equipment, complete testing instruments, and supporting facilities. And it has a research team led by scientific and technological personnel who have studied in domestic and foreign universities, and has been conducting academic discussions and research projects with relevant research institutions at home and abroad in recent years.