Patent ID: 6563328
Filing Date: 2003-05-13
Classification: G01F

Abstract:
A capacitive probe for measuring a level, in a vessel, of an electrically conductive fluid comprising:a first tubular element made of an electrically insulating material with a first face in physical contact with the electrically conductive fluid, forming a first electrode, and an opposite face in contact with a second electrode made of a fusible metal alloy with a melting temperature selected above a maximum temperature range at which the capacitive probe is intended to work, the second electrode being cast between an inner face of the first tubular element and a central core, the central core comprising a second tubular element made of an insulating material and a third electrode inside the second tubular element, the first electrode forming with the second electrode a first capacitor, and the second electrode forming with the third electrode a second capacitor, and at least one measuring device which measures a capacitance variation of at least one of the first capacitor and the second capacitor.