Abstract: A wire (10) is disclosed. Said wire (10), when viewed in cross-section, has at least one first portion (12) and at least one second portion (14) that are interconnected by a third portion (16) in which the wire (10) has a reduced cross-section.

Abstract: A method for monitoring a line is done in a simple manner by feeding test pulses and determining any interference on the test pulses by reflected portions of the same test pulses. In a normal state of the line, the measuring pulses have a transit time which is known in advance due to the predetermined length of the line, and the respective reflected portions of the measuring pulses are generated which propagate in an opposite direction to the measuring pulses. A deviation of the transit time from a previously known transit time, and a deviation from the normal state are recognized in dependence on the overlay.

Abstract: A wire (10) is disclosed. Said wire (10), when viewed in cross-section, has at least one first portion (12) and at least one second portion (14) that are interconnected by a third portion (16) in which the wire (10) has a reduced cross-section.

Abstract: A cable has a wire bundle composed of a number of individual wires and an insulating sheath. The wire bundle is guided along a longitudinal center axis by a shaping element in order to guide and to specify the cross-sectional shape of the wire bundle in a feeding region immediately upstream of an extruder. The shaping element rotates about the longitudinal center axis, and the insulating sheath is subsequently applied to the wire bundle by the extruder.

Abstract: A temperature measurement is performed using a sensor cable. The measuring arrangement has a first signal conductor, a feed unit for feeding a measurement signal into the signal conductor, and an analyzing unit which ascertains and analyzes a change in the signal transit time of the measurement signal as a result of a temperature-induced change in a first temperature-dependent dielectric constant and is configured to derive a temperature signal from the ascertained signal transit time. The first signal conductor together with a second signal conductor forms the sensor cable, and each of the two signal conductors is surrounded by an insulation which is made of a first material that has a first dielectric constant in the first signal conductor and which is made of a second material that is different from the first material and has a second dielectric constant in the case of the second signal conductor.

Abstract: A method for monitoring a line is done in a simple manner by feeding test pulses and determining any interference on the test pulses by reflected portions of the same test pulses. In a normal state of the line, the measuring pulses have a transit time which is known in advance due to the predetermined length of the line, and the respective reflected portions of the measuring pulses are generated which propagate in an opposite direction to the measuring pulses. A deviation of the transit time from a previously known transit time, and a deviation from the normal state are recognized in dependence on the overlay.

Abstract: An electrical lead has a lead core composed of a plurality of individual conduction elements and surrounded by a jacket of multiple plies that are formed by extrusion. An inner ply is formed of a swellable material. An outer ply surrounds the inner ply. Upon penetration of moisture, the swellable material of the inner ply swells up and fills out interstices between the conduction elements.

Abstract: A data cable has a specially formed stranded conductor, as a result of which the transmission properties of the data cable are significantly improved. The stranded conductor is surrounded by insulation and has an unpressed assembly composed of a plurality of individual wires which are of a same type and being embodied as external wires and being disposed around a center. The external wires are embodied with a non-round cross section, with a result that when viewed in cross section an extent of the external wires increases radially outward from the center.

Abstract: A monitoring system includes an evaluation unit and a cable which has a cable core around which a multilayer sheath is disposed. The multilayer sheath has an inner and an outer electrode of a capacitor. A hygroscopic intermediate layer is disposed between the two electrodes. The evaluation unit is configured to monitor the cable for moisture based on the capacitance of the capacitor. A cable is also provided.

Abstract: An electrical line has a core and an insulating sheath that is extruded onto the core. A structured surface having a plurality of structural elements stamped into it is formed over the entire surface of the insulating sheath. The stamped structure is a microstructure, wherein the individual structural elements have a stamping depth of at most 0.15 mm.

Abstract: A stranded conductor contains a number of individual wires. The multiple identically designed individual wires are arranged about a central inner wire as outer wires. The individual wires form a composite which is encased by insulation, and the outer wires are uncompressed and have a non-round cross-section such that when seen in cross-section, the outer wires expand radially outwards starting from the inner wire. The composite of individual wires is not compressed such that the composite has a high alternate bending strength.

Abstract: A data cable has a specially formed stranded conductor, as a result of which the transmission properties of the data cable are significantly improved. The stranded conductor is surrounded by insulation and has an unpressed assembly composed of a plurality of individual wires which are of a same type and being embodied as external wires and being disposed around a center. The external wires are embodied with a non-round cross section, with a result that when viewed in cross section an extent of the external wires increases radially outward from the center.

Abstract: A cable has a wire bundle composed of a number of individual wires and an insulating sheath. The wire bundle is guided along a longitudinal center axis by a shaping element in order to guide and to specify the cross-sectional shape of the wire bundle in a feeding region immediately upstream of an extruder. The shaping element rotates about the longitudinal center axis, and the insulating sheath is subsequently applied to the wire bundle by the extruder.

Abstract: An electrical line has a core and an insulating sheath that is extruded onto the core. A structured surface having a plurality of structural elements stamped into it is formed over the entire surface of the insulating sheath. The stamped structure is a microstructure, wherein the individual structural elements have a stamping depth of at most 0.15 mm.

Abstract: A temperature measurement is performed using a sensor cable. The measuring arrangement has a first signal conductor, a feed unit for feeding a measurement signal into the signal conductor, and an analyzing unit which ascertains and analyzes a change in the signal transit time of the measurement signal as a result of a temperature-induced change in a first temperature-dependent dielectric constant and is configured to derive a temperature signal from the ascertained signal transit time. The first signal conductor together with a second signal conductor forms the sensor cable, and each of the two signal conductors is surrounded by an insulation which is made of a first material that has a first dielectric constant in the first signal conductor and which is made of a second material that is different from the first material and has a second dielectric constant in the case of the second signal conductor.

Abstract: A stranded conductor contains a number of individual wires. The multiple identically designed individual wires are arranged about a central inner wire as outer wires. The individual wires form a composite which is encased by insulation, and the outer wires are uncompressed and have a non-round cross-section such that when seen in cross-section, the outer wires expand radially outwards starting from the inner wire. The composite of individual wires is not compressed such that the composite has a high alternate bending strength.

Abstract: An ophthalmoscope simulator for simulation and a method for simulation of the handling of an ophthalmoscope, having a support that can be attached to a head of an observer, at least one first imaging display disposed on said support, wherein the display can be placed in front of an eye of the observer for displaying a virtual reality, an ophthalmoscope dummy that can be supported by one hand of the observer, a position recognition system for determining the spatial position and/or orientation of the support and of the ophthalmoscope dummy and a computer for displaying an image of an environment, a patient head and/or at least a portion of the ophthalmoscope dummy on the display.

Abstract: An ophthalmoscope simulator for simulation and a method for simulation of the handling of an ophthalmoscope, having a support that can be attached to a head of an observer, at least one first imaging display disposed on said support, wherein the display can be placed in front of an eye of the observer for displaying a virtual reality, an ophthalmoscope dummy that can be supported by one hand of the observer, a position recognition system for determining the spatial position and/or orientation of the support and of the ophthalmoscope dummy and a computer for displaying an image of an environment, a patient head and/or at least a portion of the ophthalmoscope dummy on the display.