초록 ▼

A device for the capacitive level height measurment of liquids in motor vehicle tanks, with a measuring sensor with at least two electrodes which are arranged axially parallel to each other and a carrier, and an evaluation circuit containing an oscillator, with the measuring sensor and an indicator

A device for the capacitive level height measurment of liquids in motor vehicle tanks, with a measuring sensor with at least two electrodes which are arranged axially parallel to each other and a carrier, and an evaluation circuit containing an oscillator, with the measuring sensor and an indicator instrument being connected to the evaluation circuit. One electrode is made of an electrically conducting layer which is disposed on the elongated insulating material plate and the other electrode is formed in the shape of a U-shaped elongated metal carrier; on the legs of the carrier there is fastened the insulating material plate contacting another conducting layer in the insulating material plate, and the evaluation circuit is constructed in microelectronic technology, is electrically connected to the conducting layers, and is fastened on that part of the measuring sensor which projects from the liquid or solid, respectively.

대표청구항 ▼

A device located in motor vehicle tanks for the level measurement of liquid in a motor vehicle tank, comprising a capacitive measuring sensor disposed in said tank immersed at least partially in the liquid comprising an elongated insulating material plate with at least one electrode thereon, said in

A device located in motor vehicle tanks for the level measurement of liquid in a motor vehicle tank, comprising a capacitive measuring sensor disposed in said tank immersed at least partially in the liquid comprising an elongated insulating material plate with at least one electrode thereon, said insulating material plate having longitudinal edges, a U-profile shaped carrier electrode made of a sheet metal strip, longitudinal ends of said U-profile shaped carrier electrode forming legs thereof fastened to said insulating material plate in the vicinity of said edges, said at least one electrode on said elongated insulating material plate is arranged longitudinally parallel to said carrier electrode, at least one conducting layer in the vicinity of said edges being on said insulating material plate, said at least said one conducting layer facing toward said carrier electrode and being electrically connected with at least one of the legs of said U-shaped carrier electrode by the fastening of said carrier electrode to said insulating material plate in the vicinity of said edges, a circuit chip module including evaluating circuit components having an oscillator, said module being mechanically connected to said insulating material plate of said measuring sensor, an indicator instrument being electrically connected to said evaluating circuit components, said evaluating circuit components being electrically connected to said at least one conducting layer of said insulating material plate and to said at least one electrode.