Abstract: A balloon that can be illuminated from within, filled with propellant gas, and is capable of ascending has an interior space in which one or more light emitting diodes are located. The one or more light emitting diodes is or are connected or connectable via at least one cable or at least one contact with at least one energy source that is located outside of the interior space. The present disclosure also relates to a method of use of the balloon as a fan product or for illuminating restaurant gardens or parks, as an advertising medium, an advertising item, a lamp for interior and/or exterior areas, a signal balloon, a warning balloon, a signpost, an orientation aid, a navigation aid, an information sign, or a communication element.

Abstract: A sensor arrangement for measurement of a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can rotate with respect to one another, having at least one magnetic encoder which is arranged on the first shaft section and having a stator which is arranged on the second shaft section, wherein the stator has two stator elements each having projecting fingers, and a flux concentrator is associated with each of the stator elements and directly or indirectly supplies to a magnetic field sensor element the magnetic field which is to be detected and is produced by the magnetic encoder, wherein the at least one flux concentrator includes a ring or ring sector, is arranged essentially in the radial outer area with respect to at least one stator element and is magnetically coupled thereto via an air gap.

Abstract: A sensor arrangement for measuring a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can be rotated relative to one another, including at least one magnetic encoder arranged on the first shaft section, and a stator arranged on the second shaft section, wherein the stator has two stator elements, each with protruding fingers, and the stator elements are assigned respectively or jointly a flux concentrator which leads the magnetic field to be detected, generated by the magnetic encoder, directly or indirectly to at least one magnetic field sensor element, wherein the at least one flux concentrator is fixed to a carrier element embodied in elastic fashion at least in part.

Abstract: A sensor arrangement for measuring a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can be rotated relative to one another, including at least one magnetic encoder arranged on the first shaft section, and a stator arranged on the second shaft section, wherein the stator has two stator elements, each with protruding fingers, and the stator elements are assigned respectively or jointly a flux concentrator which leads the magnetic field to be detected, generated by the magnetic encoder, directly or indirectly to at least one magnetic field sensor element, wherein the at least one flux concentrator is fixed to a carrier element embodied in elastic fashion at least in part.

Abstract: A sensor arrangement for measurement of a torque acting on a shaft, wherein the shaft has a first shaft section and a second shaft section and these two shaft sections can rotate with respect to one another, having at least one magnetic encoder which is arranged on the first shaft section and having a stator which is arranged on the second shaft section, wherein the stator has two stator elements each having projecting fingers, and a flux concentrator is associated with each of the stator elements and directly or indirectly supplies to a magnetic field sensor element the magnetic field which is to be detected and is produced by the magnetic encoder, wherein the at least one flux concentrator includes a ring or ring sector, is arranged essentially in the radial outer area with respect to at least one stator element and is magnetically coupled thereto via an air gap.