Abstract: A parameter affecting the absorptivity or the concentration of blood in tissue is measured using a semiconductor light source (7) and a light detector (8). The semiconductor light source (7) is operated at several operating conditions, at which it has different temperatures and therefore different emission spectra. In particular, the operating conditions correspond to different time intervals after switching the light source (7) on, while the light source (7) has not yet reached thermal equilibrium. This allows to perform a spectroscopic measurement using one light source only, which increases accuracy and reduces device cost.

Abstract: A device is described for measuring a parameter of living tissue, in particular a glucose level, which parameter affects a response of said tissue to an electric field. The device comprises a substrate (2), which carries a ground electrode (10) as well as a plurality of signal electrodes (12a, 12b, 13a-13c, 14). The gaps (15) between the ground electrode and the signal electrodes are filled with a solid filler material (16) in order to provide an even surface. Optical reflection detectors (23a, 23b, 23c) can also be located in these gaps in order to avoid field distortions and obtain a compact design. The backside of substrate (2) carries electronic high-frequency components for improving signal quality.

Abstract: A sensor device comprises a sensor (1) to be held against the wearer's skin. The sensor (1) is arranged on one side of a housing (2), and the housing is connected to a band (5) for mounting it to a body part, such as an arm or leg. Various stopper devices (10, 14, 20) are arranged on the side of the housing (2) and the band (5) that face the skin. The stopper devices improve static friction, thereby holding the housing (2) in place.

Abstract: A sensor device comprises a sensor (1) to be held against the wearer's skin. The sensor (1) is arranged on one side of a housing (2), and the housing is connected to a band (5) for mounting it to a body part, such as an arm or leg. Various stopper devices (10, 14, 20) are arranged on the side of the housing (2) and the band (5) that face the skin. The stopper devices improve static friction, thereby holding the housing (2) in place.

Abstract: A parameter affecting the absorptivity or the concentration of blood in tissue is measured using a semiconductor light source (7) and a light detector (8). The semiconductor light source (7) is operated at several operating conditions, at which it has different temperatures and therefore different emission spectra. In particular, the operating conditions correspond to different time intervals after switching the light source (7) on, while the light source (7) has not yet reached thermal equilibrium. This allows to perform a spectroscopic measurement using one light source only, which increases accuracy and reduces device cost.

Abstract: A device is described for measuring a parameter of living tissue, in particular a glucose level, which parameter affects a response of said tissue to an electric field. The device comprises a substrate (2), which carries a ground electrode (10) as well as a plurality of signal electrodes (12a, 12b, 13a-13c, 14). The gaps (15) between the ground electrode and the signal electrodes are filled with a solid filler material (16) in order to provide an even surface. Optical reflection detectors (23a, 23b, 23c) can also be located in these gaps in order to avoid field distortions and obtain a compact design. The backside of substrate (2) carries electronic high-frequency components for improving signal quality.