RU93035352A - FLOATING LEVEL - Google Patents

Claims (1)

The invention relates to the field of measurement technology and is intended to measure the liquid level mainly in closed metal tanks. The purpose of the invention is to expand the range of level measurements and reduce measurement error by increasing the amplitude of the EMF pulse induced in the measuring winding of the level gauge. The level meter includes a vertically mounted dielectric tube, inside of which there is a sump with a coil wound to the coil with a measuring winding. In the upper part of the acoustic duct is mounted a piezo emitter, made of two plates. Along the dielectric tube moves along with the level of the liquid float, which is located inside the magnetic system. The sound duct is installed in a vertical position with the help of cargo. The ends of the measuring winding are connected to the unit of the secondary electronic equipment using a communication line. A piezo emitter is also connected to the secondary electronics unit via a communication link. In this case, the sound duct is used as an electrical conductor. The magnetic system in the basic version consists of an annular flat permanent magnet and n U-shaped rod permanent magnets evenly spaced around the sound guide. Permanent magnets face each other like poles. Three additional claims offer embodiments of the magnetic system of the float in the form of two flat ring-shaped permanent magnets, as well as the addition of a flat ring-shaped magnetic core between them.