Vortex flow sensor and vortex flow sensor for measuring the flow rate of a fluid

摘要

The present invention relates to a vortex flow sensor for measuring the flow velocity of a fluid flowing in a measuring tube and a vortex flow sensor for the vortex flow sensor. The eddy flow sensor (1) has a basic housing body (2) with a central axis (A), on the connecting section of which a shoulder (2a) is formed, which has a contact surface (2c). A membrane (3) is arranged in a plane of the shoulder (2a), the edge of which is positioned above the contact surface (2c) and axially spaced apart from it. The eddy current sensor also has a flange-shaped support device (8) with a radial edge section (8c) and a cylindrical axial section (8d), the radial edge section (8c) with its surface (8e) on the shoulder (2a) of the base body (2) abuts and the cylindrical axial section (8d) extends parallel to the central axis (A) so that the membrane (3) is supported against the support device (8) when a predetermined pressure is applied to it.