Abstract: A contactless datalink for transmission of data between a rotatable part and a stationary part, including a dielectric waveguide split into two sections. A first dielectric waveguide section is at the rotatable part and a second dielectric waveguide section is at the stationary part. The first dielectric waveguide section is coupled to a transmitter and the second dielectric waveguide section is coupled to a receiver.

Abstract: A waveguide structure includes a first waveguide section mechanically and electrically connected by a fixed connector to a second waveguide section. The waveguide sections include a dielectric material with a ground layer and a conductor structure with a pair of elongate conductors. The fixed connector includes a dielectric material with a pair of contact pads insulated from a ground layer. The fixed connector is attached by its top side to the bottom sides of interface sections of the waveguides sections forming a ground contact. The interface sections each comprise an intermediate conductor from each of the elongate conductors at the top side to the bottom side of the dielectric material. The intermediate conductors are connected via the contact pads.

Abstract: A slipring with at least one slip ring module having at least one sliding track, and at least one wear indication track. A wear indication circuit is connected to the at least one wear indication track for monitoring electrical properties of the wear indication track and signaling an abnormal slipring condition. A wear indication track may be exposed to higher load, higher rotation speed, higher brush pressure force, or other lifetime-reducing influence as compared to a normal sliding track.

Abstract: A waveguide structure includes a first waveguide section mechanically and electrically connected by a fixed connector to a second waveguide section. The waveguide sections include a dielectric material with a ground layer and a conductor structure with a pair of elongate conductors. The fixed connector includes a dielectric material with a pair of contact pads insulated from a ground layer. The fixed connector is attached by its top side to the bottom sides of interface sections of the waveguides sections forming a ground contact. The interface sections each comprise an intermediate conductor from each of the elongate conductors at the top side to the bottom side of the dielectric material. The intermediate conductors are connected via the contact pads.

Abstract: A contactless datalink for transmission of data between a rotatable part and a stationary part, including a dielectric waveguide split into two sections. A first dielectric waveguide section is at the rotatable part and a second dielectric waveguide section is at the stationary part. The first dielectric waveguide section is coupled to a transmitter and the second dielectric waveguide section is coupled to a receiver.

Abstract: A receiving coupler for large diameter capacitive data links comprises at least two layers of isolating material, having different lengths and being attached to each other. The shorter layer comprises on its outer surface a first pair of conductors, whereas the longer layer comprises a second pair and a third pair of conductors. The conductors are connected to each other by vias. The stack of layers of different lengths can be adapted to various curve radii of transmitting components of a capacitive rotary joint.

Abstract: An electrode device for a capacitive sensor device and a circuit arrangement for a capacitive sensor device for the operation of an electrode device are provided, wherein the electrode device has a first electrode structure with at least one transmitting electrode and at least one receiving electrode, and a second electrode structure with at least one field sensing electrode, wherein the electrode device or the capacitive sensor device can be operated in a first operation mode and in a second operation mode. In addition a method is provided for approach and/or touch detection with a sensor device.

Abstract: Provided is a method for adapting the sensitivity of a sensor system, in particular of a capacitive sensor system, which provides a sensor signal, wherein a first lower threshold value is adapted, if the sensor signal fulfills a first switching threshold criterion, a first upper threshold value is adapted, if the sensor signal fulfills a second switching threshold criterion, and at least one switching threshold value is adapted such that the switching threshold value has a predetermined first distance from the first upper threshold value and/or a predetermined second distance from the first lower threshold value.

Abstract: A test setup for testing a contactless digital rotary joint integrated in a device requiring data transmission between a rotating part and a stationary part, the rotary joint further comprises a transmitter and a receiver. The transmitter has a transmitter amplifier, which is coupled to a pair of transmission lines, which are terminated by a pair of terminations. The transmission lines are differential transmission lines comprising a pair of conductors which is driven by differential signals from the transmitter amplifier. The receiver has a receiver antenna comprising a pair of antenna sections which are differentially operated and feed a differential signal to the receiver amplifier. A transmitter ground and a receiver ground are coupled to a common mode signal generator generating a common mode signal.

Abstract: In an evaluation method for a capacitive contact sensor with at least one transmitting and at least one receiving electrode, which are able to be brought into a capacitive coupling, —at the at least one receiving or sensor electrode a measurement signal is tapped, which represents the temporal course of the coupling capacitance between the at least one transmitting electrode and the at least one receiving electrode and the temporal course of the capacitive load of the sensor electrode, respectively, —a reference signal is created from the measurement signal, and —at least one detection signal is created, when the reference signal meets at least one detection criterion. An evaluation device may be coupled with at least one transmitting electrode and at least one receiving electrode or with at least one sensor electrode of the capacitive contact sensor and is adapted to carry out the above evaluation method.

Abstract: A slipring with at least one slip ring module having at least one sliding track, and at least one wear indication track. A wear indication circuit is connected to the at least one wear indication track for monitoring electrical properties of the wear indication track and signaling an abnormal slipring condition. A wear indication track may be exposed to higher load, higher rotation speed, higher brush pressure force, or other lifetime-reducing influence as compared to a normal sliding track.

Abstract: A receiving coupler for large diameter capacitive data links comprises at least two layers of isolating material, having different lengths and being attached to each other. The shorter layer comprises on its outer surface a first pair of conductors, whereas the longer layer comprises a second pair and a third pair of conductors. The conductors are connected to each other by vias. The stack of layers of different lengths can be adapted to various curve radii of transmitting components of a capacitive rotary joint.

Abstract: A test setup for testing a contactless digital rotary joint integrated in a device requiring data transmission between a rotating part and a stationary part, the rotary joint further comprises a transmitter and a receiver. The transmitter has a transmitter amplifier, which is coupled to a pair of transmission lines, which are terminated by a pair of terminations. The transmission lines are differential transmission lines comprising a pair of conductors which is driven by differential signals from the transmitter amplifier. The receiver has a receiver antenna comprising a pair of antenna sections which are differentially operated and feed a differential signal to the receiver amplifier. A transmitter ground and a receiver ground are coupled to a common mode signal generator generating a common mode signal.

Abstract: A method for the detection of a gripping of a hand-held device with one hand, using a capacitive sensor device, uses at least one transmitting electrode, at least one compensating electrode and at least one receiving electrode. An electrical signal is tapped at the receiving electrode and the sensor device can be operated in a first operating mode and in a second operating mode. In the first operating mode, a first alternating electrical signal is applied to the transmitting electrode and a second alternating electrical signal is applied to the compensating electrode. In the second operating mode, the second alternating signal is only applied to the compensating electrode. Furthermore, a sensor device can be provided which is configured to perform the method as described above.

Abstract: An electrode device for a capacitive sensor device and a circuit arrangement for a capacitive sensor device for the operation of an electrode device are provided, wherein the electrode device has a first electrode structure with at least one transmitting electrode and at least one receiving electrode, and a second electrode structure with at least one field sensing electrode, wherein the electrode device or the capacitive sensor device can be operated in a first operation mode and in a second operation mode. In addition a method is provided for approach and/or touch detection with a sensor device.

Abstract: An electrical hand-held device is provided with improved proximity detection, which can be placed on a surface and has at least one transmission electrode, at least one reception electrode and at least one compensation electrode arranged between transmission electrode and reception electrode. The transmission electrode and the compensation electrode can be supplied with an electric switching signal of predetermined signal frequency and predetermined signal amplitude. Switching electric signal at the compensation electrode is phase-delayed with respect to the switching electric signal at the transmission electrode. Alternating electric fields radiated at the transmission electrode and the compensation electrode generate a current in the reception electrode, which is representative of an approach of a hand to the hand-held device.

Abstract: An electrode device for a capacitive sensor device and a circuit arrangement for a capacitive sensor device for the operation of an electrode device are provided, wherein the electrode device has a first electrode structure with at least one transmitting electrode and at least one receiving electrode, and a second electrode structure with at least one field sensing electrode, wherein the electrode device or the capacitive sensor device can be operated in a first operation mode and in a second operation mode. In addition a method is provided for approach and/or touch detection with a sensor device.

Abstract: Provided is a method for adapting the sensitivity of a sensor system, in particular of a capacitive sensor system, which provides a sensor signal, wherein a first lower threshold value is adapted, if the sensor signal fulfills a first switching threshold criterion, a first upper threshold value is adapted, if the sensor signal fulfills a second switching threshold criterion, and at least one switching threshold value is adapted such that the switching threshold value has a predetermined first distance from the first upper threshold value and/or a predetermined second distance from the first lower threshold value.

Abstract: In an evaluation method for a capacitive contact sensor with at least one transmitting and at least one receiving electrode, which are able to be brought into a capacitive coupling, at the at least one receiving or sensor electrode a measurement signal is tapped, which represents the temporal course of the coupling capacitance between the at least one transmitting electrode and the at least one receiving electrode and the temporal course of the capacitive load of the sensor electrode, respectively, a reference signal is created from the measurement signal, and at least one detection signal is created, when the reference signal meets at least one detection criterion. An evaluation device may be coupled with at least one transmitting electrode and at least one receiving electrode or with at least one sensor electrode of the capacitive contact sensor and is adapted to carry out the above evaluation method.

Abstract: An electronic circuit with a plurality of connections for a plurality of sensor elements is provided, wherein the electronic circuit is configured to detect, with at least one multiplexing method, the presence of an object in at least one observation area of the sensor elements and to distinguish between the sensor elements. Also a method for determining the position of at least one object situated in at least one observation area of sensor elements relative to the sensor elements is provided, whereby with a multiplexing method an electric variable for each sensor element is detected, which is indicative for the presence of the object in the respective observation area.