Abstract: A method for testing a new superconducting wire involves charging an actively shielded magnet coil configuration which comprises a first partial region which can be superconductingly short-circuited using an additional switch. A superconductor to be tested under increased current load is used in this first partial region, thereby preventing superconductor in the second partial region from being subjected to this increased current load. Operating currents are determined for both partial regions that have the desired excess current in the first partial region, with the overall field B0 only slightly differing from the standard operating field of the magnet coil configuration. The operating currents are adjusted through initial charging of the overall magnet coil configuration, thereby taking into consideration the inductive coupling between the partial regions and after closing of the additional switch, by continued charging or discharging in the second partial region only.

Abstract: An MRI configuration comprising an MRI phantom positioned in a volume under investigation, wherein the MRI phantom has a chamber disposed in a housing and filled with a liquid, in which a gas bubble forms, the liquid nuclei which have an NMR relaxation time T1 of between 100 ms and 20 s, is characterized in that the chamber the MRI phantom a main chamber and a partial chamber, the main chamber being delimited from the partial chamber such that the gas bubble can completely enter the partial chamber due to its buoyancy by changing the spatial orientation of the MRI phantom in the gravitation field, and remains in the partial chamber in a measurement orientation of the MRI phantom due to its buoyancy. This eliminates imaging artefacts despite the presence of a gas bubble.

Abstract: A co-axial magnet configuration for the production of a magnetic field and investigational volume which is suitable for measurement of magnetic resonance has at least one superconducting solenoid coil or solenoid coils which are radially nested within each other, wherein the windings of the solenoid coil(s) in a radial region about the axis of the magnetic configuration are disposed between r1 and r2, wherein r1<r2 is characterized in that the windings are surrounded by at least one rotationally symmetric magnet body made from ferromagnetic material which extends over a radial region between r3 and r4 wherein r3<r4 wherein r2<r3<1.3 r2 and r4>1.

Abstract: The invention relates to a rotating or pivoting device (110) comprising a housing (12), at least one working piston (14) which is mounted in the housing and subjected to a pressure medium, and a pivoting part (20) which is rotatably mounted in the housing and is rotatably driven by the working piston by means of a rotating coupling mechanism, the working piston being mounted in the housing in such a way that it can be displaced in a housing-side cylinder, The inventive rotating or pivoting device also comprises an abutment part (114) that limits the stroke of the working cylinder in at least two positions and can be locked at least in its axially inner intermediate position.

Abstract: An NMR probe head for investigating a temperature-sensitive test object in a volume under investigation with at least one RF receiver coil which is cooled to cryogenic temperatures during operation, and is surrounded by a housing, wherein at least one heatable separating wall is provided between the RF receiver coil and the test object, is characterized in that the separating wall is produced from a material having excellent heat conducting properties, wherein the separating wall is coupled in a heat conducting fashion to at least one heating element at a separation from the volume under investigation via at least one contact location. The inventive NMR probe head permits disposition of the RF receiver coil in close proximity to the test object to be measured without inadvertently cooling it.

Abstract: A sensor carrier comprising a cover part for a flow meter, with a sensor comprising connecting strands and a plug part covering the sensor and the connecting strands and having connecting pins which can be brought into contact with the connecting strands is characterized in that, at least in the region of the connecting strands, the space between the plug part and the cover part is covered by an electrically insulating elastic substance to provide reliable sealing.

Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (12)), and the winding chamber (1) in the notch region (12) contains a first separating body (4) with a truncated conical envelope (5) which axially divides the winding chamber (1) into two partial chambers (6, 7), the superconducting strip conductor being guided over the truncated conical envelope (5) of the first separating body (4) from one partial chamber (6) into the other partial chamber (7) via a single-layer transfer winding (9), and a second separating body (10) is provided which supplements the first separating body (4) in the notch region (12) in a radial outer direction to form a circular cylinder, wherein the single-layer transfer winding (9) is disposed b

Abstract: A matrix shim system for generating magnetic field components superimposed on a main static magnetic field, comprising a plurality of annular coils, is characterized in that it comprises g groups G1 . . . Gg of coils, with g being a natural number ?1, wherein each group Gi consists of at least two single annular coils connected in series, wherein each group Gi is designed to generate, in use, a magnetic field B z ? ( G i ) = ? n = 0 ? ? A n ? ? 0 ? ( G i ) · T n ? ? 0 . For each group Gi, there are at least two values of n for which ? A n ? ? 0 ? ( G i ) · R n ? max ? { ? A 20 ? ( G i ) · R 2 ? , … ? , ? A N ? ? 0 ? ( G i ) · R N ? } ? 0.5 ? ? and ? ? N ? n ? 2 , with N: the total number of current supplies of the matrix shim system, and R: smallest inside radius of any of the annular coils of the matrix shim system.

Abstract: A superconducting magnet coil system comprising a main field coil which is formed from series-connected sections, wherein the conductors of the radially inner sections contain a first superconducting material and have first electric voltage insulation, the conductors of the radially outer sections comprise a second superconducting material and are provided with second electric voltage insulation, wherein the first superconducting material has a higher critical magnetic field than the second superconducting material, and the first voltage insulation has a smaller dielectric strength than the second voltage insulation, and a shielding coil which is connected in series with the main field coil, radially surrounds the main field coil, and comprises conductors of the second superconducting material having the second electric voltage insulation, wherein the main field coil and the shielding coil are superconductingly short-circuited during operation and are protected through several ohmic resistances and/or diodes

Abstract: A cryostat configuration has at least three centering elements (4) which are distributed about the periphery of a cryocontainer (1). Each end (6) of the centering elements (4) facing away from an outer jacket (3) of the cryostat configuration is connected to an actuator (7) which exerts a pressure or tensile force on the respective centering element (4) to generate a mechanical tension in a corresponding centering element (4) which loads the centering elements (4) with a nearly constant pressure or tension, irrespective of the temperature changes within the cryostat configuration. This yields a cryostat configuration which permits pressure centering without overloading the centering elements.

Abstract: The invention relates to a unit for the treatment of histological samples. The unit comprises a treatment chamber (1), a device (2) for supplying and removing treatment agents (3, 3?, 3?) to and from the treatment chamber (1), and a control system (4) for the performance of the treatment. The aim of the invention is to develop the unit in such a way that the need to carry out different treatments is taken into account in an economical manner. Towards this end, at least one other treatment chamber (5) is provided, by means of which treatments can be carried out independently from the first treatment chamber (1), the device (2) and the control system (4) also co-operating with that other treatment chamber (5).

Abstract: The invention relates to a steering column module for a vehicle, especially for a motor vehicle. The steering column comprises a base housing, at least one switch unit which is arranged in or on the base housing and comprises a mechanism which is coupled to an actuating element, at least one printed circuit board arranged in or on the base housing, and at least one switch which can be displaced on the printed circuit board, the switch being coupled in a displaceable manner to the mechanism of the switch unit. The printed circuit board and the switch are associated with a common pre-mounted unit which is constructed in such a manner that the switch is movingly coupled to the mechanism of the switch unit during mounting of the switch unit to said pre-mounted unit.

Abstract: An applicator for liquid or pasty media, in particular for decorative cosmetics such as mascara has a rod-shaped reinforcing core of a first plastic material which is surrounded at least in the region of its front end by a support sleeve of a second plastic material. The support sleeve has a plurality of radially outwardly projecting fingers which are integrally formed on the support sleeve and also consist of the second plastic material. Several fingers which are distributed over the periphery of the support sleeve form a finger collar and a plurality of finger collars with identical finger number are disposed one behind the other in the longitudinal direction of the support sleeve. A particular combination of parameters for the bristles leads to improved combing and application properties.

Abstract: A cryostat (1) with a first helium tank (4) which contains helium at an operating temperature T1<3K, and a second helium tank (2) which is connected to the first helium tank (4) and contains liquid helium at an operating temperature T2>3K, wherein a cooling means (6) is provided in the first helium tank (4) which generates an operating temperature T1<3K in the first helium tank (4), wherein the cooling means (6) is designed as a Joule-Thomson valve with downstream heat exchanger from which pumped helium is transported to a room temperature region outside of the cryostat (1) is characterized in that a refrigerator (11) is provided whose cold end (19) projects into the second helium tank (2) and the supplied helium is returned during normal operation in a closed loop along the refrigerator (11) and into the second helium tank (2), thereby being pre-cooled and liquefied at the cold end (19) of the refrigerator (11).

Abstract: A switching device in particular for a vehicle has a switching lever which can be deflected into different switching positions to activate switching processes. An actuator is driven by a control device to cause the switching lever to vibrate, the control device receiving input signals from at least one other control device and determines therefrom a set conditions for admissible deflection of the switching lever. The actuator is driven by the control device when the switching lever is deflected from a respective switching position into a switching position which does not meet the set conditions.

Abstract: A superconducting magnet coil configuration comprising at least one section of a superconducting strip conductor, which is continuously wound in a cylindrical winding chamber (1) between two end flanges (2, 3) in several solenoid-like layers is characterized in that the section comprises an axial region of reduced current density (=notch region (10)), and the winding layers (6, 9) have hollow cylindrical blind regions (4a, 4b, 4c) which are filled with filler and which have different axial lengths, and radially sequential blind regions (4a, 4b, 4c) each alternately abut one of the two end flanges (2, 3) and are each radially separated from each other by at least one continuous winding layer (7), wherein the axial overlapping region of the blind regions (4a, 4b, 4c) forms the notch region (10). The inventive device thereby realizes a magnet coil configuration comprising a strip conductor which has a notch region for correcting inhomogeneities, wherein the mechanical load on the strip conductor is minimized.

Abstract: The invention concerns a transmission device for transmitting electrical signals between a rotor and a stator, having an annular space formed by the rotor and the stator, wherein the space receives at least one flat strip cable which extends between the rotor and the stator and can be wound and unwound in the space, and wherein at least one elastically resilient annular band is provided to support the flat strip cable in the space. The invention is characterized in that the annular band can be driven by the rotor and/or the stator via engagement sections provided on the side of the annular band.

Abstract: A superconducting magnet coil configuration has at least one section containing a superconducting strip conductor which is wound in several layers like a solenoid in a cylindrical winding chamber (1) between two end flanges (2, 3), characterized in that the radially innermost layers of the section consist of metallic low-temperature superconductors (LTS) (LTS layers (8)) and radially adjacent layers of the section are formed from high-temperature superconductor (HTS) material (HTS layers (9)). The invention proposes a magnet coil configuration using HTS material which has a notch structure for correcting inhomogeneities and homogenizing a compact high-field magnet, wherein the mechanical load on the HTS strip conductor is minimized.