Abstract: A sensor system for determining physical variables of a switchgear assembly having a sensor connection, which is designed for connection to the switchgear assembly, within which a humidity sensor and/or a pressure sensor and a light sensor for detecting light flashes are arranged. A switchgear assembly is provided that is filled, in particular, with a protective gas, comprising at least one such sensor system.

Abstract: A monitoring device is provided having a temperature-compensated pressure-measuring system, in which an electrical notification is output to the outside with use of a plurality of settable threshold values. Also, a high-performance switching system is provided that includes at least one monitoring device.

Abstract: A sensor system for determining physical variables of a switchgear assembly having a sensor connection, which is designed for connection to the switchgear assembly, within which a humidity sensor and/or a pressure sensor and a light sensor for detecting light flashes are arranged. A switchgear assembly is provided that is filled, in particular, with a protective gas, comprising at least one such sensor system.

Abstract: A monitoring device is provided having a temperature-compensated pressure-measuring system, in which an electrical notification is output to the outside with use of a plurality of settable threshold values. Also, a high-performance switching system is provided that includes at least one monitoring device.

Abstract: A measuring device according to the invention for determining the fill quantity of SF6 gas in an insulating chamber comprises a pressure transducer, a temperature measuring element and a processing device for determining the fill quantity of the SF6 gas from the pressure measurement value and the pertinent temperature measurement value, wherein the measuring device seals a corresponding opening of the insulating chamber and the SF6 gas to be measured acts directly upon both the pressure transducer and the temperature measuring element.

Abstract: The invention relates to a dual band antenna, in particular for satellite navigation applications, comprising a multilayer structure that is provided with an upper first antenna element (12) for receiving electromagnetic waves having a frequency in a first frequency band, a lower second antenna element (16) arranged below the first antenna element (12) for receiving electromagnetic waves having a frequency in a second frequency band, two electrically conductive ground layers (20,28), a first and a second one, that are arranged one above the other and that are arranged in turn below the lower second antenna element (16), and a conducting-path layer (24) having at least one first conductive path (30,32) for electromagnetically coupling with the first antenna element (12) and having at least one second conductive path (34,36) for electromagnetically coupling with the second antenna element (16).

Abstract: A measuring device according to the invention for determining the fill quantity of SF6 gas in an insulating chamber comprises a pressure transducer, a temperature measuring element and a processing device for determining the fill quantity of the SF6 gas from the pressure measurement value and the pertinent temperature measurement value, wherein the measuring device seals a corresponding opening of the insulating chamber and the SF6 gas to be measured acts directly upon both the pressure transducer and the temperature measuring element.

Abstract: The invention relates to a dual band antenna, in particular for satellite navigation applications, comprising a multilayer structure that is provided with an upper first antenna element (12) for receiving electromagnetic waves having a frequency in a first frequency band, a lower second antenna element (16) arranged below the first antenna element (12) for receiving electromagnetic waves having a frequency in a second frequency band, two electrically conductive ground layers (20,28), a first and a second one, that are arranged one above the other and that are arranged in turn below the lower second antenna element (16), and a conducting-path layer (24) having at least one first conductive path (30,32) for electromagnetically coupling with the first antenna element (12) and having at least one second conductive path (34,36) for electromagnetically coupling with the second antenna element (16).