FIELD: indicating or measuring liquid level.
SUBSTANCE: device comprises vibration unit, receiving-driving unit, and processing unit. The vibration detector can be used also as a sensor of viscosity or density. The microprocessor is used for providing multi-alternating pickup in the vibration circuit defined by the vibration unit and electronic feedback device. The microprocessor corrects the phase of the electronic feedback device so that the sum of the phases of the electronic feedback device and microprocessor follows a given function.
EFFECT: expanded functional capabilities.
13 cl, 2 dwg
