Buerkert Werke Gmbh & Co. Kg

Sagar Agarwal

Kersten Grosse

Franziska Maier

Michael Tischmacher

Marc Cöster

Martin Luschtinetz

A method of operating a diaphragm valve is specified. The diaphragm valve comprises a fluid housing having a valve seat formed therein, a diaphragm which cooperates with the valve seat to open or close a flow path through the fluid housing, and at least two sensors from the following group: a capacitive sensor, which is arranged such that the diaphragm is located at least in sections in the electric field of the capacitive sensor, a temperature sensor, a pressure sensor, a force sensor, a pH sensor, a stress sensor and a vibration sensor, wherein an index value is formed from the measured values of the different sensors by means of a data fusion algorithm at at least two points in time, wherein a degree of wear of the diaphragm is determined on the basis of a change in the index value. Furthermore, a diaphragm valve is specified.

Method of operating a diaphragm valve and diaphragm valve

A valve has a position sensing mechanism including at least one Hall sensor and a signal transmitter, wherein the Hall sensor senses magnetic field components in a first measuring direction and in a second measuring direction orthogonal thereto, wherein the two measuring directions are arranged in a planar measurement zone of the Hall sensor. The signal transmitter is an axially polarized magnet which is arranged on a valve tappet linearly displaceable along an axis of movement such that the poles thereof lie in the axis, wherein the axis runs parallel to the first measuring direction and at a distance from the measurement zone along a surface normal of the measurement zone. An imaginary centerline is defined on the measurement zone through a center of the measurement zone and along the first measuring direction, wherein the axis is arranged at a distance from the imaginary centerline along the second measuring direction.

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Ingelfingen, Germany

Sagar Agarwal