Sick Ag

Albert-Ludwigs-Universitaet Freiburg

Andreas Peter

Olaf Machul

Sascha Thoss

Jan Korvink

Stefan Schonhardt

An inductive proximity sensor and a method for the detection of an object having at least one coil, wherein at least one transmitted current pulse can be applied to the coil by a control and evaluation unit and the control and evaluation unit is configured to output an object determination signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that has been generated by the transmitted current pulse at the coil in a plurality of sections from or after the time of the application of the transmitted current pulse and to form scan values, whereby the voltage pulse is digitized, wherein the control and evaluation unit is configured to evaluate the scan values for an object detection of a metallic object, wherein the control and evaluation unit is configured to scan the transmitted current pulse that has been generated at the coil in at least two sections from or after the time of the application of the transmitted current pulse and to form transmitted current scan values, wherein the control and evaluation unit is configured to determine a rise in the current increase of the transmitted current pulse from the transmitted current scan values, and the control and evaluation unit is configured to end the transmitted current pulse in dependence on the detected increase of the transmitted current pulse.

Inductive proximity sensor for the detection of an object and method of detecting an object

A sensor for detecting an object is provided that has a detection unit for detecting a sensor signal and a control and evaluation unit that is configured to determine an object property by evaluating the sensor signal, to determine a correction value for interference of the sensor environment from the sensor signal using a method of machine learning, and to take the correction value into account in the determination of the object property.

Sensor for detecting an object and method of evaluating a sensor signal

The invention relates to a sensor for determining an output value, the sensor having: a detection unit configured to detect a sensor signal; a preprocessing unit configured to determine an intermediate signal on the basis of the sensor signal and of a predefined reference signal; and an evaluation unit that is trained in accordance with a machine learning method and that is configured to determine the output value on the basis of the intermediate signal.

Sensors for determining an output value, method for evaluating a sensor signal, and method for training an output unit to evaluate a sensor signal

A method and an inductive proximity sensor for detecting an object having at least one coil, wherein at least one transmission current pulse can be applied to the coil by a control and evaluation unit and having the control and evaluation unit for outputting an object detection signal, wherein the control and evaluation unit is configured to scan at least one induced voltage pulse that is generated by the transmission current pulse at the coil in at least one section from or after the point in time of the application of the transmission current pulse up to the point in time of the complete attenuation of the voltage pulse and to form scan values, whereby the voltage pulse is digitized.

Inductive proximity sensor

A mufti-channel coil array for use as a transceiver in magnetic resonance imaging (MRI) has a plurality of radio frequency (RF) coils disposed next to one another, devices for electromagnetically decoupling the RF coils and coil elements which are applied onto a planar carrier element (). The carrier elements () have a regular, equilateral polygonal outer contour and the shape of the individual coils () corresponds to the outer contour of the carrier element (). An individual coil () has a loop-shaped structure (), which leads to a decoupling of individual coils () not immediately adjacent to each other when a plurality of individual elements are arranged. The space requirement for adding new coils is reduced, and the modular design makes it possible to easily implement any three-dimensional or two-dimensional shape.

Growing community of inventors

Emmendingen, Germany

Andreas Peter