Abstract: A water sensor for detecting water in gas oil filters having a first and a second electrode a first and a second earth connection for earthing the first electrode and the second electrode; a first switch arranged in the first earth connection; a second switch arranged in the second earth connection; a first and a second current connection for injecting a first current into the first electrode and a second current into the second electrode; and a current-generating circuit connected to the first electrode and to the second electrode through the first current connection and the second current connection respectively, and designed to inject the first current into the first electrode and the second current into the second electrode, the first current and the second current being the same.

Abstract: A water sensor for detecting water in gas oil filters is provided. It has a first and a second electrode; a first and a second earth connection for earthing the first electrode and the second electrode; a first switch arranged in the first earth connection; a second switch arranged in the second earth connection; a first and a second current connection for injecting a first current into the first electrode and a second current into the second electrode; and a current-generating circuit connected to the first electrode and to the second electrode by means of the first current connection and the second current connection respectively, and designed to inject the first current into the first electrode and the second current into the second electrode, the first current and the second current being the same.

Abstract: A method for detecting water in diesel fuel filters is disclosed by arranging a first electrode and a second electrode in a medium located in the diesel fuel filter, forming an equivalent parallel RC circuit; applying an injection phase (A), during which a closed first switch and an open second switch are arranged such that a working electric current is injected in the first electrode, and the second electrode is connected to ground, delivering an electric charge; applying a relaxation phase (B), during which the open first switch and the closed second switch are arranged such that both the first electrode and the second electrode are connected to ground, the electric charge being dissipated through the medium; evaluating the voltage according to a capacitive component of the equivalent parallel RC circuit; and determining the medium.

Abstract: A method for measuring the presence of water in gas oil filters and a water sensor for carrying out is provided by a functional assembly associated with a pair of electrodes that are arranged in the area for decanting water which is separated from the fuel in the gas-oil filters, an electrical current being applied to said electrodes by a current source and a switching bridge, in measurement cycles separated by periods of electricity, each cycle being determined as a current pulse train, the polarization of the electrodes being adapted in the first measurement cycle in order to optimize the detection of water in the medium containing same, adjusting the functional activity acting on the duration of the current pulses when the presence of water is detected.

Abstract: The invention relates to a method for detecting water in diesel fuel filters, comprising: arranging a first electrode and a second electrode (1.1; 1.2) in a medium located in the diesel fuel filter, forming an equivalent parallel RC circuit; applying an injection phase (A), during which a closed first switch (3.1) and an open second switch (3.2) are arranged such that a working electric current is injected in the first electrode (1.1), and the second electrode (1.2) is connected to ground, delivering an electric charge; applying a relaxation phase (B), during which the open first switch (3.1) and the closed second switch (3.2) are arranged such that both the first electrode (1.1) and the second electrode (1.2) are connected to ground, the electric charge being dissipated through the medium; evaluating the voltage according to a capacitive component of the equivalent parallel RC circuit; and determining the medium by means of said evaluation.

Abstract: A method for measuring the presence of water in gas oil filters and a water sensor for carrying out is provided by a functional assembly associated with a pair of electrodes that are arranged in the area for decanting water which is separated from the fuel in the gas-oil filters, an electrical current being applied to said electrodes by a current source and a switching bridge, in measurement cycles separated by periods of electricity, each cycle being determined as a current pulse train, the polarization of the electrodes being adapted in the first measurement cycle in order to optimize the detection of water in the medium containing same, adjusting the functional activity acting on the duration of the current pulses when the presence of water is detected.

Abstract: The invention relates to a disturbance elimination system for inductive sensors for monitoring the movement of mobile objects, including an inductive element formed by two magnetically-opposed identical half-coils (L2 and L3) which are arranged in parallel with one another and coplanar to the movement plane of a magnetic element (1) provided on the mobile element a to be monitored, facing a point through which the moving magnetic element (1) passes.