Abstract: Measuring device for non-invasively detecting the intracranial pressure pulsation of a patient, comprising a holding device which can be detachably attached to the outside of the patient's skull in a force-fitting and/or form-fitting manner, at least one bimorph bending sensor arranged in or on the holding device, an analog signal amplifier for amplifying the measurement data provided by the bimorph bending sensor, an A/D converter for converting the analog measurement data into digital data, and a computing unit for preprocessing the data and calculating vital parameters such as intracranial pressure based on the digital data. In addition, an associated method for non-invasive detection of intracranial pressure pulsation is described.

Abstract: Method for evaluating a state of an object (2), comprising the following steps: obtaining an excitation information (4) describing a mechanical excitation of the object (2); generation of a plurality of spectral excitation values (7) as a function of the excitation information (4) by means of a frequency analysis, the spectral excitation values (7) each being assigned to one spectral section of a plurality of predetermined spectral sections; obtaining a plurality of spectral reference excitation values (9) relating to a reference state of the object (2) and associated with a respective one of the spectral sections; and determining relative excitation values (11) for at least a part of the spectral sections by relating the spectral excitation value (7) associated with the respective spectral section to the spectral reference excitation value (9) associated with the respective spectral section.

Abstract: Electromechanical transducer (1, 21, 28) having a layer structure comprising, in this order: a first layer (2) which has, in at least one plane, at least one outwardly insulated, structured, electrically conductive region (3) acting as an electrical shield, a second layer (6) serving as an adhesive layer, which is electrically conductive at least at certain points, a third layer (13, 22) comprising an electromechanical functional element, a fourth layer (15, 23) serving as an adhesive layer, which is electrically conductive at least at certain points, a fifth layer (17, 24), which has, in at least one plane, at least one outwardly insulated structured electrically conductive region (18) acting as an electrical shield. In addition, a method for manufacturing such an electromechanical transducer (1, 21, 28) is described.

Abstract: Method for detecting structure-borne sound, comprising the following steps: attaching a structure-borne sound sensor (3) to a fastening position on the body or on an article of clothing of a user, wherein the structure-borne sound sensor (3) is connected to a controller designed to evaluate the sensor signals of the structure-borne sound sensor (3), detection of structure-borne sound generated by a manual action of the user and transmitted via the skeleton, i.e. via bones and/or tendons, in the user's body to the fastening position by means of the structure-borne sound sensor (3), determining by the controller using the evaluated sensor signals, whether or not the structure-borne noise generated by the manual activity sufficiently matches a stored structure-borne noise profile, whereby the structure-borne sound sensor (3) detects the structure-borne sound generated by the manual activity of the user and transmitted essentially via the skeleton, i.e.

Abstract: The invention relates to a measuring device for measuring mechanical stresses or vibrations occurring in a component, wherein the measuring device comprises at least one electromechanical transducer, which can be integrated in a force-locked manner into the component, and at least one electronic unit, which is connected to the transducer via signal lines and is used to record and process the signals delivered by the transducer. In order to improve the robustness of the arrangement, it is provided according to the invention that the electronic unit is at least partially surrounded by a housing, and wherein a compensation zone for absorbing relative movements between the housing and the electronic unit is provided between the housing and the electronic unit.

Abstract: The invention relates to a measuring device for measuring mechanical stresses or vibrations occurring in a component, wherein the measuring device comprises at least one electromechanical transducer, which can be integrated in a force-locked manner into the component, and at least one electronic unit, which is connected to the transducer via signal lines and is used to record and process the signals delivered by the transducer. In order to improve the robustness of the arrangement, it is provided according to the invention that the electronic unit is at least partially surrounded by a housing, and wherein a compensation zone for absorbing relative movements between the housing and the electronic unit is provided between the housing and the electronic unit.

Abstract: A thin, flat, and porous carbon gas diffusion electrode having a side in contact with a supply of gas and a side in contact with an electrolyte, comprises a pyrolysis product of a composite of an organic aerogel or xerogel and a reinforcing skeleton consisting at least in part of organic material. The porosity of the carbon gas diffusion electrode according to the invention can be regulated at will while the surface of the electrode is smooth.