Abstract: A method for monitoring a semiconductor element in a semiconductor module, wherein the semiconductor module has feed lines contacting the semiconductor element, includes arranging a magneto-optical sensor in a region of the semiconductor element or of at least one of the feed lines, reflecting a polarized light signal from the magneto-optical sensor or transmitting a polarized light signal through the magneto-optical sensor, and determining a current from a polarization of the reflected or transmitted light signal.

Abstract: A cooling device for heat dissipation from an electronic component includes a heating tube having a heating tube surface, a cooling element having a first cooling element side formed with a slot recess which at least partially encloses the heating tube, and a fiber structure made of fibers and arranged on the heating tube surface in a region in which the heating tube is at least partially enclosed by the slot recess. The fibers on the heating tube surface of the heating tube in the region of the slot recess form a mechanical connection with a cooling element surface of the cooling element.

Abstract: A cooling device for heat dissipation from an electronic component includes a heating tube having a heating tube surface, a cooling element having a first cooling element side formed with a slot recess which at least partially encloses the heating tube, and a fiber structure made of fibers and arranged on the heating tube surface in a region in which the heating tube is at least partially enclosed by the slot recess. The fibers on the heating tube surface of the heating tube in the region of the slot recess form a mechanical connection with a cooling element surface of the cooling element.

Abstract: A circuit board with a conductor path having a recess, an implant with left, right, lower and upper edges arranged in the recess, where the implant has first and second optical layers, a second optical layer and a conductor arranged between them, the first and the second optical layer each have at least one light-conducting structure with first and second ends, where a light-conductor is arranged in a right edge of the implant, in which respective second ends of the light-conducting structures are located, such that light fed in at the first end of the optical fiber of the first optical layer is deflected to the second end of the light-conducting structure of the second optical layer such that a beam path of the light encompasses the conductor, and the circuit also includes an optical transmitter and an optical receiver with and evaluator that form a fiber optic current sensor.

Abstract: A circuit board with a conductor path having a recess, an implant with left, right, lower and upper edges arranged in the recess, where the implant has first and second optical layers, a second optical layer and a conductor arranged between them, the first and the second optical layer each have at least one light-conducting structure with first and second ends, where a light-conductor is arranged in a right edge of the implant, in which respective second ends of the light-conducting structures are located, such that light fed in at the first end of the optical fiber of the first optical layer is deflected to the second end of the light-conducting structure of the second optical layer such that a beam path of the light encompasses the conductor, and the circuit also includes an optical transmitter and an optical receiver with and evaluator that form a fiber optic current sensor.

Abstract: A measuring transducer for obtaining position data, with a transmit/receive unit having a plurality of light sources for scanning a dimensional scale, wherein the transmit/receive unit includes several light sources, in particular at least one light source having a plurality of emitters.

Abstract: A rotary transmitter having a first light-conducting hollow body, at least one transmitter for generating at least one optical signal and at least one receiver for receiving the optical signal is disclosed. The optical signal is transmitted from the transmitter to the receiver via the first light-conducting hollow body.

Abstract: To enable signals to be transmitted from a fixed machine part to a machine part opposite same which rotates on a hollow shaft or vice versa, light must be able to be transmitted or received over the entire circumference. This is achieved by using an optical waveguide which, unlike conventional optical waveguides, is designed to couple out some of the light passing through it and, conversely, to allow light to enter, at any locations on its circumference.

Abstract: A rotary transformer having first light-conducting curved tube segments, the first tube segments being disposed to form a first tubular arrangement, is disclosed. The rotary transformer has at least one first transmitter for producing first light signals and at least one first receiver for receiving the first light signals. The first light signals are transmitted from the first transmitter via the first tube segments to the first receiver.

Abstract: A machine tool or a production machine, such as e.g. a multispindle machine, or a robot, is described, wherein a liquid metal lubricated slide bearing is not only used to transmit feed currents for electrical consumers but also to transmit currents for producing control signals. Accordingly, it is possible to apply via the liquid metal lubricated slide bearings a voltage of 600 volts in order to produce feed currents and a voltage of 24 volts in order to produce control signals.

Abstract: The invention relates to a measuring device comprising a transmitter (1) for measuring a position and/or a rotational speed of a rotary element (2), a housing (3), and a plate (4) comprising a recess for receiving a transmitter (1), the transmitter (1) being rotatably arranged in relation to the plate (4). The transmitter (1), the plate (4) and the housing (3) are arranged in such a way that when the housing (3) is connected to the base body (5), the housing (3) presses the plate (4) against the base body (5). In this way, the transmitter (1) is pressed against the base body and the housing is pressed against the plate. The invention also relates to a method for fixing a housing of the above-mentioned measuring device. The angular position of the housing can be modified independently of the angular position of the transmitter in relation to a base body.

Abstract: A machine tool or a production machine, such as e.g. a multispindle machine, or a robot, is described, wherein a liquid metal lubricated slide bearing is not only used to transmit feed currents for electrical consumers but also to transmit currents for producing control signals. Accordingly, it is possible to apply via the liquid metal lubricated slide bearings a voltage of 600 volts in order to produce feed currents and a voltage of 24 volts in order to produce control signals.

Abstract: A machine having two machine parts, of which one is able to be rotated relative to the other, in which light signals are transferred from the one part to the other part. The light signals are transmitted radially to the axis of rotation of the rotatable machine part. In a first embodiment a plurality of light sources couple light into an optical waveguide ring which is coupled out over the entire outer circle of the optical waveguide ring so that it is guaranteed that light signals reach a receiver arranged radially outside in each case. In another embodiment light sources couple light into optical waveguide structures, with branches of the optical waveguides guaranteeing that on the outer circle of the one component the exit points for light are sufficiently dense that for any given angular position of the rotatable component at least one of two receivers receives a light signal.

Abstract: A rotary transmitter having a first light-conducting hollow body, at least one transmitter for generating at least one optical signal and at least one receiver for receiving the optical signal is disclosed. The optical signal is transmitted from the transmitter to the receiver via the first light-conducting hollow body.

Abstract: A rotary transformer having first light-conducting curved tube segments, the first tube segments being disposed to form a first tubular arrangement, is disclosed. The rotary transformer has at least one first transmitter for producing first light signals and at least one first receiver for receiving the first light signals. The first light signals are transmitted from the first transmitter via the first tube segments to the first receiver.

Abstract: To enable signals to be transmitted from a fixed machine part to a machine part opposite same which rotates on a hollow shaft or vice versa, light must be able to be transmitted or received over the entire circumference. This is achieved by using an optical waveguide which, unlike conventional optical waveguides, is designed to couple out some of the light passing through it and, conversely, to allow light to enter, at any locations on its circumference.

Abstract: A machine having two machine parts, of which one is able to be rotated relative to the other, in which light signals are transferred from the one part to the other part. The light signals are transmitted radially to the axis of rotation of the rotatable machine part. In a first embodiment a plurality of light sources couple light into an optical waveguide ring which is coupled out over the entire outer circle of the optical waveguide ring so that it is guaranteed that light signals reach a receiver arranged radially outside in each case. In another embodiment light sources couple light into optical waveguide structures, with branches of the optical waveguides guaranteeing that on the outer circle of the one component the exit points for light are sufficiently dense that for any given angular position of the rotatable component at least one of two receivers receives a light signal.

Abstract: The invention relates to a measuring device comprising a transmitter (1) for measuring a position and/or a rotational speed of a rotary element (2), a housing (3), and a plate (4) comprising a recess for receiving a transmitter (1), the transmitter (1) being rotatably arranged in relation to the plate (4). The transmitter (1), the plate (4) and the housing (3) are arranged in such a way that when the housing (3) is connected to the base body (5), the housing (3) presses the plate (4) against the base body (5). In this way, the transmitter (1) is pressed against the base body and the housing is pressed against the plate. The invention also relates to a method for fixing a housing of the above-mentioned measuring device. The angular position of the housing can be modified independently of the angular position of the transmitter in relation to a base body.

Abstract: A revolution counter; includes a base body having a sensor arrangement and a power supply device which supplies energy to the sensor arrangement, and a rotary element connectable to a revolving member and rotating relative to the base body about a rotation axis. The rotary element includes a magnet arrangement, which so interacts with the power supply device that the sensor arrangement is supplied with energy during each revolution of the rotary element in at least three rotary positions of the rotary element regardless of a rotation speed of the rotary element to thereby allow the sensor arrangement to ascertain a rotary position of the rotary element. In order to prevent a transmission of mechanical forces from the rotary element to the base body, the rotary element is positioned with respect to the base body either without connection to the base body, or held by the base body at three-dimensional play.

Abstract: A revolution counter includes a single sensor which scans movement of a rotary element and generates a raw signal commensurate with a rotary position of the rotary element for ascertaining one of at least three areas of angular ranges. Two of these areas include each a single continuous angular range, whereas a third area includes at least two angular ranges, which interrelate but are separated from one another. A power generation system delivers energy pulses to the sensor, when the rotary element rotates below a minimum value, so that a raw signal can be detected and the corresponding angular range area can be determined. The power generation system and the rotary element are so interconnected as to ascertain for at least part of the thus determined areas of angular ranges, by which of the angular ranges the rotary element is rotated, and to establish the number of revolutions based on the ascertained angular ranges.