Abstract: An assembly for detecting and/or determining the concentration of one or more substances in a liquid or gaseous medium comprises a plurality of distributed measurement cells having one or more detectors, so that an absorption of optical radiation in the liquid or gaseous medium can be sensed in the measurement cell for a plurality of characteristic absorption peaks of the substances to be determined, and an optical device for producing and guiding the optical radiation, so that a beam of the optical radiation is guided through all the measurement cells, and which optical device comprises a plurality of light sources, which each emit radiation at a wavelength of a different one of the characteristic absorption peaks, and a beam combiner, by means of which the radiation emitted by the light sources is merged to form the beam. The assembly allows spatially resolved measurement and can be implemented economically.

Abstract: Embodiments provide a wearable apparatus for acquiring electrophysiological signals of a living being. The apparatus includes a textile carrier, at least two dry electrodes attached to an inside of the textile carrier and at least two adjustable straps attached to the textile carrier that allow to adjust the wearable apparatus to a body of the living being and a contact pressure of the at least two dry electrodes to a skin of the living being.

Abstract: What is described are a signal detecting device for detecting a vital parameter of a living being, having a plurality of electrodes and an electrode selecting device for selecting a pair of electrodes from the plurality of electrodes such that a difference signal suitable for measuring the vital parameter is derivable, an electrode arrangement and a method.

Abstract: Embodiments of the present invention provide a magnetic field sensor having a first current path, a second current path, a signal generator and an evaluator. The first current path has a first coil area, and the second current path has a second coil area, wherein the first coil area has windings in a first winding direction around a first magnetic core area, and wherein the second coil area has windings in a second winding direction around a second magnetic core area. The signal generator is implemented to provide an excitation current which divides into the first and second current paths. The evaluator is implemented to tap a voltage between the first and second coil areas and to detect an external magnetic field based on the voltage.

Abstract: What is described are a signal detecting device for detecting a vital parameter of a living being, having a plurality of electrodes and an electrode selecting device for selecting a pair of electrodes from the plurality of electrodes such that a difference signal suitable for measuring the vital parameter is derivable, an electrode arrangement and a method.