Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Technische Universitaet Ilmenau

Carl Zeiss Jena Gmbh

Carl Zeiss Meditec Ag

Technische Universitaet E.v.

Technische Universitat Ilmenau

Peter Husar

Michael Fischer

Frank Klefenz

Daniel Krenzer

Andreas Schober

András Kátai

Klaus Schellhorn

Falk Schlegelmilch

Sebastian Berkes

Uta Fernekorn

Albrecht Hess

Gunter Henning

Christian Wiede

Andreas Götze

Günter Henning

Adam Williamson

Lars Schumann

Paul Fritzsche

Lars Hiller

Ingo Hoerselmann

Jörg Hampl

Johannes Katzmann

Christian Holland-Nell

Anja Chilian

Matthias Pauligk

Daniel Laqua

Ingo HÖRSELMANN

Michael HÄNSEL

Joachim Tilgner

Johannes-Wolf KÜNZEL

Tamás Harczos

Katharina Lilienthal

An apparatus for analyzing an element rotating at a rotational speed based on an vibration signal originating from the rotating element has: an analysis function processor for forming a plurality of analysis functions, the analysis function processor configured to form each analysis function based on an analysis frequency, on the vibration signal or on a measured or estimated rotational speed and on a predetermined order factor differing for each analysis function; a correlator configured to calculate a correlation result from the vibration signal and each analysis function, each correlation result being associated to the order factor which the analysis function, with which the correlation result was calculated, is based on, and the correlation results representing a correlation function; and an examiner configured for examining the correlation function or examining information derived from the correlation function so as to make a statement on a state of the rotating element.

Apparatus for analyzing or monitoring a rotating element and corresponding method

A method for the spatial tomography of sound includes the following steps: contactlessly capturing a physical parameter for a first and a second multitude of local regions in space along a first and a second laser beam as well as calculating a voxel model of the sound pressure over time per local region of the first and second multitudes based on the captured physical parameter.

Method and apparatus for the tomography of sound

Embodiments of the present invention provide a memristor having a first electrode, a second electrode and a memristive layer arranged between the first electrode and the second electrode. Thereby, the memristor is adapted to obtain an asymmetrical current density distribution in the memristive layer.

Asymmetrical memristor

An apparatus for determining information about shape and location of an ellipse involves determining two coordinates of a first ellipse point representing a point of the ellipse located furthest in the first direction, and determining two coordinates of a second ellipse point representing a point of the ellipse located furthest in a direction opposite to the first direction. The apparatus determines parameters of bent line segments approximating the ellipse at ellipse points or in a surrounding of ellipse points, and determines the coordinates of ellipse points based on the parameters of the bent line segments. The apparatus involves calculating ellipse parameters of the ellipse based on the two coordinates of the first ellipse point and the two coordinates of the second ellipse point. The apparatus enables real-time-capable determination of parameters of an ellipse included in an image to be analyzed.

Apparatus, method and computer program for determining information about shape and/or location of an ellipse in a graphical image

A method and device for optically stimulating the visual system during static perimetry and for objectively evaluating adequate stimulus-related electrophysiological and/or magnetophysiological quantities. Light stimuli with defined parameters derived from a predetermined correlation function and from the known intensity dependence of the excitation response amplitude are presented to the observer. The excitation responses contained in the ERG and/or in the EEG/MEG are detected and processed. These excitation responses are used to determine and topographically evaluate the local sensitivity of the visual system. In one embodiment, the light sources are fixed inside a perimeter, and the excitation responses are amplified and digitized by a device, which preferably comprises an ERG/EEG measuring system and an A/D converter. To this end, the device, for the purpose of evaluating, and the light sources, for the purpose of controlling, are connected to a controlling means, preferably to a PC provided with evaluation and control software.

Method and arrangement for optically stimulating the visual system

A method and arrangement for acquiring an electroencephalogram (EEG) are disclosed. A first set of electrodes is arranged to sense cortical signals generated primarily in a region of interest (ROI). A second set of electrodes are arranged to sense cortical signals generated inside and outside of the ROI. Individual signals sensed by each electrode of the first and second sets of electrodes are directed to a signal analyzer.

Device and method for carrying out spatially directed detection of an electroencephalogram

According to the invention, the eye of the subject is lit with light from the non-visible spectrum (infrared light) in such a way that its image, taken with an infrared camera, is of sufficiently high-contrast for an evaluation, so that the actual line of sight can be calculated from the picture based on the characteristics of the eye and that, proceeding from the determined line of sight, the coordinates of the coming optical stimulation can be adjusted in such a way that the intended retinal area is stimulated.

Optical stimulation of the human eye

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Ilmenau, Germany

Peter Husar