Abstract: A tracker, a surgical navigation system with the tracker, and a method of operating the tracker are described. The tracker comprises a first switch configured to be operated between a first switch configuration and a second switch configuration. The tracker also comprises one or more sources of electromagnetic radiation configured to selectively emit electromagnetic radiation with a first radiation characteristic or a second radiation characteristic. The tracker further comprises electrical circuitry configured to selectively control the one or more sources of electromagnetic radiation to emit electromagnetic radiation having the first radiation characteristic in the first switch configuration and to emit electromagnetic radiation having the second radiation characteristic in the second switch configuration, wherein the second radiation characteristic is different from the first radiation characteristic.

Abstract: The present invention relates to a satellite communications system comprising a satellite with a spatial digital modulator for transmitting an incoming bit stream in multiple beams, wherein the spatial digital modulator is configured to generate transmit symbols by dividing the incoming bit stream into symbols of a symbol alphabet and to allocate each transmit symbol to a specific beam. The invention further relates to a method for transmitting a bit stream by such a satellite communications system.

Abstract: An operating member includes: a support; an actuating part, which defines an actuating surface is mounted on the support by a mount to be movable relative to the support, by manual actuation against a resetting force, while carrying out an actuating movement from a rest position into a depressed position; a detector having at least one force sensor, wherein the detector is adapted to detect at least one position of the actuating part; wherein the mount includes a guidance mechanism having at least one pair of coupled levers, wherein the levers are each pivotably mounted on the support by a first pivot joint and on the actuating part—by a second pivot joint to cause a pivoting movement of the at least one pair of coupled levers by the actuating movement, wherein the guidance mechanism further includes at least one coupling rod.

Abstract: The invention relates to an optical waveguide component and to a method for the production thereof.

Abstract: An operating member including a support; an actuating part mounted on the support by a mount, to be movable relative to the support, by manual actuation against a resetting force to carry out an actuating movement from a rest position into a depressed position; and a detector, having at least one force sensor, adapted to detect at least one position of the actuating part is presented. The mount includes a guidance mechanism having at least one pair of coupled levers, wherein the levers are each pivotably mounted on the support by a first pivot joint defining at least one first pivot axis and on the actuating part by a second pivot joint defining at least one second pivot axis to cause a pivoting movement of the levers by the actuating movement. The guidance mechanism further includes at least one coupling rod to couple the pivoting movement of the levers.

Abstract: The present disclosure relates to a method for parameterizing an automation field device which is communicatively connected to a server, having the following steps: initiating the method by transmitting a command to parameterize the field device on the server; transmitting identification information of the field device to the server; ascertaining a digital image of the field device stored on the server using the transmitted identification information, said digital image containing configuration settings of the field device and measurement location-relevant information and being designed to reproduce the behavior of the field device in a simulated or emulated manner; generating and proposing a parameter set for the field device using the field device information; selecting and confirming the proposed parameter set by a user; and transmitting the confirmed parameter set to the field device and parameterizing the field device using the transmitted parameter set.

Abstract: The invention relates to a radar system, particularly a primary radar system, comprising at least one signal generating device (SGEN), which is configured to generate and to emit a transmit signal sequence, at least one signal detection device, which is configured to receive and to detect a receive signal sequence reflected on an object structure, at least one mixer (MIX) for mixing the receive signal sequence with the transmit signal sequence and for forming N baseband signals sb(n, t), where n=1 . . . N, and at least one scanning device (ADC), which is configured to scan the N baseband signals at scanning frequencies fs(n), wherein at least two, preferably at least three, further preferably all of the N scanning frequencies fs(n) differ from each other.

Abstract: The present disclosure relates to an operating member including: a support; an actuating part, which defines an actuating surface is mounted on the support by a mount to be movable relative to the support, by manual actuation against a resetting force, while carrying out an actuating movement from a rest position into a depressed position; a detector having at least one force sensor, wherein the detector is adapted to detect at least one position of the actuating part; wherein the mount includes a guidance mechanism having at least one pair of coupled levers, wherein the levers are each pivotably mounted on the support by a first pivot joint and on the actuating part—by a second pivot joint to cause a pivoting movement of the at least one pair of coupled levers by the actuating movement, wherein the guidance mechanism further includes at least one coupling rod.

Abstract: A coated window pane for rail vehicles, wherein the coating is made in a structured and electrically conductive form and includes filtering characteristics for radio signals, where the coating is structured as a conductive periodic grating, in which at least two annular coatings are respectively embedded in the intermediate spaces, the at least two annular coatings are respectively filled by a coated area, and the grating, the annular coatings and the coated areas are separated by insulating regions such that the coated, structured window panes have filtering characteristics such that signals or frequency ranges of signals from and to radio communication systems are arranged outside the vehicle pass through and signals or frequency ranges of signals from and to radio communication devices arranged inside the vehicle are blocked or are greatly attenuated, and such that high requirements with respect to heat shielding and sun shielding properties are also met.

Abstract: A hybrid gripper that is used as end effector of a robotic manipulator for handling objects that are arranged in top, middle, and bottom shelves of a storage unit. The hybrid gripper may include first and second end effectors, where the first end effector is pivotally coupled to the second end effector. The first end effector includes a first longitudinal support member and an axle member that telescopically moves in and out of the first longitudinal support member. The axle member is attached to a gripper assembly that houses first and second suction cups to grip and pick the objects. The second end effector includes a second longitudinal support member and a spatula that is rotatably attached to the second longitudinal support member. Here, the spatula and the first longitudinal support member move relative to the second longitudinal support member.

Abstract: A robotic manipulator for handling an object is provided. The robotic manipulator includes a first robotic arm and a first end effector coupled to the first robotic arm. A movement of the first robotic arm orients the first end effector with respect to the object. The robotic manipulator includes a housing, a first conveyor operably coupled to the housing, a second conveyor operably coupled to the housing at an angle with respect to the first conveyor, and a first actuation mechanism. The first and second conveyors are arranged to form a top surface and the bottom surface respectively of a spatula-shaped base. The first actuation mechanism operates the first and second conveyors in one of a first direction and a second direction to manipulate the object. The operation of the first conveyor is independent of the operation of the second conveyor.

Abstract: A print head includes a capillary around an axis of symmetry for a liquid to be printed, the capillary adjoining at least one elastic element and having a nozzle opening which opens into a prechamber. The prechamber has an outlet opening aligned with the nozzle opening of the capillary in its axial orientation of the axis of symmetry and at least one inlet opening for a guide gas. The at least one elastic element forms a guide for the capillary in its axial orientation only. A feed for the liquid to be printed is provided in the capillary. A mechanical oscillation system is provided that includes the at least one elastic element and the capillary with the liquid contained therein. An actuator with a mechanical or magnetic force interaction with the oscillation system is further provided.

Abstract: A control server controls a dual-arm robotic manipulator (DARM) for handling deformable objects in a stack. The control server receives a set of images of the stack captured by a set of image sensors, and determines a contour of the stack based the set of images. Based on the contour and historical data associated with the deformable objects in the stack, the control server determines a sequence of actions to be performed by the DARM for handling a first deformable object in the stack, and controls the DARM to handle the first deformable object by communicating a set of commands corresponding to each action in sequence of actions. The first deformable object is handled such that original form factors of the first deformable object and the remaining stack are maintained.

Abstract: A microtome for producing thin sections from a sample includes a sample holder configured to receive the sample and a cutting edge configured to cut the sample, the cutting edge having a specified cutting direction, the cutting direction and the cutting edge spanning a cutting plane. The microtome further includes a movement device configured to produce a relative movement between the sample holder and the cutting unit for cutting the sample in the cutting direction, a feed device configured to produce a relative movement between the sample holder and the cutting edge for cutting the sample in a feed direction at an angle not equal to 0° to the cutting plane, and a liquid volume with a liquid abutting the cutting edge on a side of the cutting edge facing away from the sample holder.

Abstract: Various embodiments may include a method for checking the plausibility of the functionality of a crankcase ventilation system of an internal combustion engine, wherein crankcase ventilation system has a crankcase, an intake tract equipped with an intake manifold, and a connecting line arranged between the crankcase and the intake manifold, the method comprising: detecting an occurrence of a negative load change; in response, comparing a measured intake manifold pressure with a modelled intake manifold pressure using acquired operating variables of the internal combustion engine and of a crankcase model; and determining on the basis of the comparison result whether the connecting line arranged between the crankcase and the intake manifold becomes blocked or drops out.

Abstract: A print head includes a capillary around an axis of symmetry for a liquid to be printed, the capillary adjoining at least one elastic element and having a nozzle opening which opens into a prechamber. The prechamber has an outlet opening aligned with the nozzle opening of the capillary in its axial orientation of the axis of symmetry and at least one inlet opening for a guide gas. The at least one elastic element forms a guide for the capillary in its axial orientation only. A feed for the liquid to be printed is provided in the capillary. A mechanical oscillation system is provided that includes the at least one elastic element and the capillary with the liquid contained therein. An actuator with a mechanical or magnetic force interaction with the oscillation system is further provided.

Abstract: A scanning reticle for an optical position measuring device includes a substrate having an upper surface, operating in transmission, and having different functional regions. The upper surface includes at least one region having a grating made up of gaps and ribs, the ribs being formed in the substrate. The upper surface includes an antireflection layer, which is discontinuous in the region of the gaps.

Abstract: A microtome for producing thin sections from a sample includes a sample holder configured to receive the sample and a cutting edge configured to cut the sample, the cutting edge having a specified cutting direction, the cutting direction and the cutting edge spanning a cutting plane. The microtome further includes a movement device configured to produce a relative movement between the sample holder and the cutting unit for cutting the sample in the cutting direction, a feed device configured to produce a relative movement between the sample holder and the cutting edge for cutting the sample in a feed direction at an angle not equal to 0° to the cutting plane, and a liquid volume with a liquid abutting the cutting edge on a side of the cutting edge facing away from the sample holder.

Abstract: Apparatus for mixing a powdered material with a liquid that includes a housing in which a working space having an inner wall is arranged and a rotatably-driven rotor being arranged in the working space. The rotatably-driven rotor includes a blade ring and bars, which are pointing toward the inner wall and are arranged at different positions in a circumferential direction of the rotor. The apparatus also includes a feed opening for the powdered material being arranged above the blade ring and an annular gap connectable to a liquid supply arrangement being arranged below the blade ring. In a direction parallel to an axial direction of the rotor, the bars one of connect to one another or overlap one another.