HUP9601026A1 - Method and device for measuring mass flow of a medium in motion - Google Patents

Abstract

On the one hand, the invention is a method for measuring the mass flow of a flowing medium, in which a medium flow corresponding to the flow to be measured is passed through at least one flexible pipeline (1A, 1B), which pipelines are each designed as coolers lying in a single plane, the at least one pipeline (1A, 1B) is heated into vibration, and electrical signals are detected by sensing its vibration are produced, from which a signal proportional to the mass flow of the flowing medium is determined. According to the invention, at least one pipeline (1A, 1B) is vibrated in such a way that, in the case of a thermal pipeline or several pipelines (1A, 1B), each pipeline (e.g. 1A) vibrates in its own plane. a main rigid body (13) containing an inflow and an outflow cavity and at least one flexible vibrating pipeline (1A, 1B) connected thereto, which vibrating pipeline (1A, 1B) has an inlet and an outlet end, which are directly or indirectly connected to the inlet of the rigid body (13) , and they protrude into the spill cavity, and their distance from each other is significantly smaller than that of the vibrating pipeline (1A, 1B), furthermore, the vibrating pipeline (1A, 1B) is shaped like coolers and its axis is in the same plane, as well as the vibrating pipeline (1A, 1B) 14) and vibration detection sensors (15, 16) are connected, from where the vibration of the vibrating pipeline (1A, 1B) excited by the vibrating element (14) usually remains in the plane of the axis line, and the midpoint of the vibrating pipeline (1A, 1B) taken along the length of the line is along a straight line vibrate.ŕ