Abstract: An optical system for a measuring device for optically measuring a measured variable of a medium comprises a first signal path in which a filter designed as a bandpass interference filter is inserted at an inclination angle different from zero degrees, which divides the first signal path into a unidirectional transmission path and a bidirectional path used to transmit excitation radiation and to receive measurement radiation. The inclination angle is dimensioned such that the inclined filter transmits signal components lying within its passband of transmission radiation supplied to the transmission path as excitation radiation, and reflects signal components lying outside its passband of measurement radiation impinging thereon via the bidirectional path and resulting from interactions of the transmitted excitation radiation with the medium, and makes them available as useful radiation.

Abstract: A fitting for connecting to a pipe, including a base body having at least one pipe section, a pressing section connected to the pipe section, and a functional unit connected to the pressing section. The functional unit includes a functional ring, a sealing element and a fixing element, wherein the functional ring, has an outer section arranged radially outside the pressing section and an inner section arranged inside the pressing section, and wherein the inner section positions the sealing element and the fixing element inside the pressing section. The fitting solves the technical problem of enabling easier and more reliable replacement of the functional parts. The invention also relates to a functional unit and a system.

Abstract: The invention relates to a pipe connector for tightly connecting a first pipe end to a second pipe end, with a sleeve-like base body which has a first receptacle for inserting a first pipe end and a second receptacle for inserting a second pipe end, with first retaining elements in the area of the first receptacle, which are designed to fixate a first pipe end inserted into the first receptacle in the first receptacle after the pipe connector has been pressed, and with second retaining elements in the area of the second receptacle, which are designed to fixate a second pipe end inserted into the first receptacle after the pipe connector has been pressed, wherein the base body is formed from a plurality of base body segments arranged next to one another in the circumferential direction. The invention further relates to a use of the pipe connector and to a method for tightly connecting a first pipe end to a second pipe end.

Abstract: A measuring cell for a measuring apparatus for optically measuring a parameter of a medium comprises two half-shells and at least one window. The half-shells each have a recess on their mutually facing inner sides, each of which forms one half of a channel running through the measuring cell. The half-shells are connected to one another by two joints arranged on opposite sides of the channel and directly adjacent to the channel over the entire length of the channel. Each window is either formed by a transparent region of one of the half-shells adjacent to the measuring portion of the channel or is enclosed in one of the half-shells without any gap, with or without the interposition of a seal, in such a way that it seals with the front flush on an inner surface of the corresponding half-shell adjacent to the measuring portion of the channel.

Abstract: A system for connecting rigid and flexible pipes with corresponding outer diameters, with a press jaw having a press contour, with a first fitting for press-fitting to a rigid pipe, the first fitting having a first press sleeve with a first outer contour, a second fitting for press-fitting to a flexible pipe, the second fitting having a second press sleeve with a second outer contour, the second fitting having a second press sleeve with a second outer contour has a second press sleeve with a second outer contour, the outer contour of the first press sleeve and the outer contour of the second press sleeve being adapted in sections to the press contour of the press jaw and can be pressed by the press jaw and wherein the outer contours of the first press sleeve and of the second press sleeve correspond at least in sections.

Abstract: A measuring device includes: a measuring cell, which can be manufactured cost-effectively and is easy to handle, insert and/or replace; a measuring cell receptacle for receiving the measuring cell, which is or can be clamped in the measuring cell receptacle; and a sensor for measuring for measuring at least one measured variable for a medium located in the measurement chamber or flowing through the measurement chamber of the measuring cell. The measuring cell includes a measurement chamber through which the medium can flow or which can be filled with a medium and a spring system with which the measuring cell can be clamped in the measuring cell receptacle in at least one clamping direction relating to a measurement chamber axis of the measurement chamber.

Abstract: A measuring apparatus with an optical sensor for optically measuring at least one measured variable of a medium includes a closed housing, a flow cell with a measuring chamber arranged in the housing, a reference chamber arranged in the housing and a carrier rotatably mounted in the housing. The optical sensor comprises at least one light source and at least one detector, which are arranged on the carrier in such a way that measurements of the at least one measured variable can be performed on a medium located in the measuring chamber using the optical sensor when the carrier is in a measuring position that can be accessed by rotating the carrier, and reference measurements can be carried out on a reference medium located in the reference chamber using the optical sensor when the carrier is in a reference position that can be accessed by rotating the carrier.

Abstract: A battery carrier for receiving at least one battery module serving as a drive energy storage device for an electrically driven vehicle. The battery carrier can be connected to a body of the vehicle, including a substantially circumferential frame structure having longitudinal sides and transverse sides for forming a receiving area for the at least one battery module, wherein the battery carrier is integrally molded from a light metal material, in particular integrally cast from a light metal material. The receiving area encloses an area of at least 0.5 m2, in particular of at least 0.75 m2, particularly preferably of at least 1 m2. The present invention also relates to methods for die casting a substantially one-piece battery carrier from a light metal melt, in particular from an aluminum alloy melt.

Abstract: A method for producing a preform for an antiresonant hollow-core fiber involves providing a cladding tube comprising a cladding tube inner bore with a cladding tube inside and a central cladding tube axis, providing a plurality of tubular antiresonance element preforms (ARE preforms for short), each comprising a longitudinal tube axis and an outer tube surface, initially positioning the ARE preforms in peripheral desired positions of the cladding tube inner side by means of a positioning aid to form a primary preform, and thermally stretching the primary preform to form the hollow-core fiber or further processing the primary preform to form a secondary preform from which the hollow-core fiber is drawn.

Abstract: A method for producing a preform for an anti-resonant hollow-core fiber which comprises a hollow core extending along a longitudinal axis of the fiber and a sheath that surrounds the hollow core and through which hollow channels pass.

Abstract: A sensor housing includes: a sensor body with at least one primary retainer arranged in the sensor body; a sensor cover with at least one secondary retainer, the sensor cover configured for arrangement on the sensor body such that the primary retainer and the secondary retainer are enclosed in the sensor body; and a locking unit including at least one locking element configured for releasably connecting the primary retainer and the secondary retainer, wherein the locking element includes a magnetizable material or a magnetic material and is mounted movably between a locking position, in which the locking element locks the primary retainer with the secondary retainer, and an opposing release position, such that the locking element can be moved between the locking position and the release position by an applied magnetic field.

Abstract: A measuring device for measuring a measurand of a medium includes a measuring cell, a measuring cell receptacle for holding the measuring cell, and a measuring apparatus for measuring the measurand, wherein the measuring cell includes a measurement chamber containing the medium and a reference chamber separate from the measurement chamber and containing a reference medium. The measurement chamber and the reference chamber are arranged relative to one another such that the measuring cell can be inserted into the measuring cell receptacle in a measuring position, in which measurements of the measurand of the medium can be performed by means of the measuring apparatus, and can be inserted into the measuring cell receptacle in a reference position, in which reference measurements of a reference variable of the reference medium in the reference chamber can be performed by means of the measuring apparatus.

Abstract: A measuring cell for performing optical measurements of a medium disposed in the measuring cell includes: recesses extending through a first outer wall and a second outer wall of the measuring cell; and two window mounts, each with a transparent window therein and each including outward protruding projections configured to be inserted a corresponding recess at a selected installation depth, wherein a wall of the measuring cell that surrounds the recess includes on an inside, for each selectable installation depth, one set of contact surfaces arranged around the recess in a radial direction such that the projections of the window mount seat on the contact surfaces of the corresponding set, which are arranged in an axial direction such that the window mount is arranged in the recess at the selected installation depth.

Abstract: The present invention relates to an angle of rotation sensor device. The sensor device includes: a carrier assembly with a carrier assembly base body which forms a rotor chamber, a rotor assembly which is arranged rotatably relative to the carrier assembly in the rotor chamber, and first and second circuit board assemblies respectively attached to the carrier assembly. The first circuit board assembly includes a detection apparatus which interacts with the rotatable rotor assembly to detect an angle of rotation. The second circuit board assembly includes a connector contact apparatus, and the carrier assembly includes a connecting apparatus which is attached to the carrier assembly base body and establishes an electrical connection between the first circuit board assembly and the second circuit board assembly. The present invention further relates to a modular assembly system for manufacturing such an angle of rotation sensor device.

Abstract: The invention relates to a system for connecting rigid pipes and for connecting flexible pipes. The pipes have corresponding outer diameters, with a press jaw having a press contour, with at least one first fitting for press-fitting to a rigid pipe, the at least one first fitting having a first press sleeve with a first outer contour, with at least one second fitting for press-fitting to a flexible pipe, the at least one second fitting having a second press sleeve with a second outer contour, the at least one second fitting having a second press sleeve with a second outer contour has a second press sleeve with a second outer contour, the outer contour of the first press sleeve and the outer contour of the second press sleeve in each case being adapted at least in sections to the press contour of the press jaw of the press jaw and can be pressed by the press jaw and wherein the outer contours of the first press sleeve and of the second press sleeve correspond at least in sections.

Abstract: A method for designing a custom-made intra-oral appliance includes obtaining a virtual 3D reconstruction of an oral cavity, identifying an appliance region, obtaining a 3D appliance mesh from the appliance region, and processing the 3D appliance mesh for obtaining a volumetric appliance mesh. A method for obtaining a virtual 3D reconstruction of an oral cavity, the virtual 3D reconstruction being suitable for use in designing custom-made intra-oral appliances, and a method for designing an intra-oral appliance. The method for obtaining a virtual 3D reconstruction of an oral cavity includes obtaining at least one 2D image of an oral cavity, wherein the at least one image is acquired by a consumer electronics product, transforming the obtained at least one 2D image into an initial virtual 3D reconstruction of the oral cavity, and transferring information included in a further virtual 3D reconstruction to the initial virtual 3D reconstruction.

Abstract: The invention provides a method for producing a component (100) having a cooling channel system, the method comprising: building a first portion (10) of the component (100) by means of the additive, integrally bonded application of a build material; and—introducing a first cavity (11) having an opening into the first portion (10) of the component (100).

Abstract: A light trap for ultraviolet radiation for curing ink on a printing substrate contains a shaped body with more than two shape elements succeeding one another. The shaped body has a side facing the printing substrate and embodied to have step elements in a stepped arrangement as shape elements. Every step element contains a pair formed of a step surface and a riser, the step surfaces and the risers having different inclinations relative to the direction of transport. The step surfaces have a step length L and the riser has a step height H, and is characterized in that the following applies: L>2H. This provides an improved UV screen by use of the light trap while simultaneously simplifying the process of cleaning the light trap. This is preferably used in the process of printing and curing UV inks.

Abstract: A battery carrier for receiving at least one battery module serving as a drive energy storage device for an electrically driven vehicle. The battery carrier can be connected to a body of the vehicle, including a substantially circumferential frame structure having longitudinal sides and transverse sides for forming a receiving area for the at least one battery module, wherein the battery carrier is integrally molded from a light metal material, in particular integrally cast from a light metal material. The receiving area encloses an area of at least 0.5 m2, in particular of at least 0.75 m2, particularly preferably of at least 1 m2. The present invention also relates to methods for die casting a substantially one-piece battery carrier from a light metal melt, in particular from an aluminum alloy melt.

Abstract: A form seal for sealing a gap between a component inserted into a recess of a part exposed to the environment includes: an annular first sealing region for sealing a front region of the gap facing the environment, which comprises a front region adjoining a front side of the form seal, the external dimensions of which decrease in the direction of the front side; a second sealing region that projects inward on an inner side of the first sealing region complementary to a groove of the component; and a third sealing region for supporting the rear of the form seal, which adjoins the first sealing region on a side of the first sealing region facing away from the front side.