摘要:
A rolling bearing which has as rolling bearing components one bearing race with a first running surface, a second bearing race with a second running surface opposed to the first surface, and rolling elements arranged between the running surfaces. At least one sensing unit is integrated into the rolling bearing components. The sensing unit can be interrogated by radio via antennas or can be connected to an interrogator by a cable. The sensing unit uses at least one component operating on the SAW or BAW principle to sense changes in length and/or changes in temperature in the material of the rolling bearing component and sends the result of the measurement after the arrival of a radio signal via the antenna or via a cable.
摘要:
Known static micromixers that work according to the principle of multilamination allow for a rapid mixing by diffusion. The invention provides a means for substantially increasing the throughput of known micromixers. To this end, the inventive micromixer for mixing two or more reactants comprises microstructures that define mixer cells. Each of said mixer cells is provided with a feeding chamber which adjoins at least two groups of digital channels. Said channels intermesh with the digital channels of the groups adjoining the feeding channels in a comb-like manner, thereby producing mixing zones]. Outlet ports are located above said mixing zones, said outlet ports extending perpendicularly to the digital channels and discharging the product. The inventive micromixer is especially useful for the large-scale production of mixtures, dispersions and emulsions.
摘要:
An antifriction bearing provided with sensors for recording physical quantities that act upon the hearing and with strip conductors and electronic components for evaluating and/or transmitting sensor output signals or characteristic values derived therefrom to electrical or electronic devices located outside of the bearing. To this end, the sensors, strip conductors and electronic components are placed on at least one bearing part while forming a measurement data recording and/or measurement data processing system. The sensors, strip conductors and/or electronic components are made from at least one electrically conductive or semiconducting organic material.
摘要:
An antifriction bearing provided with sensors for recording physical quantities that act upon the hearing and with strip conductors and electronic components for evaluating and/or transmitting sensor output signals or characteristic values derived therefrom to electrical or electronic devices located outside of the bearing. To this end, the sensors, strip conductors and electronic components are placed on at least one bearing part while forming a measurement data recording and/or measurement data processing system. The sensors, strip conductors and/or electronic components are made from at least one electrically conductive or semiconducting organic material.
摘要:
The invention relates to a disk motor with an armature disk, which is rotatably mounted and provided with permanent magnets, and with a stator which comprises a stator plate which is equipped with coils. The aim of the invention is to provide a disk motor that is as flat as possible and that is characterized by an improved smoothness of running. To this end, an annular soft-magnetic prestressing device is arranged concentrically on the stator plate in such a manner that at least one section of the prestressing device is located below the coil window of the coils in the axial direction. The armature disk may support an annular flux-return element opposite which the annular prestressing device is located in the radial direction. Said prestressing device has a cross-sectional contour that guides the magnetic lines of electric flux from the annular flux-return element to the coil window.
摘要:
A method for fabrication of micro heat exchangers, which enable an efficient heat transfer between two flowing media. In a first processing step, a plastic layer is structurized by means of photolithography, x-ray deep lithography, or laser ablation. This plastic structure is galvanically molded in a second processing step, preserving the structural properties. The resulting metallic microstructure, which is the inverse of the original structure, is used as a shaping insert to produce the individual layers from which the micro heat exchanger is assembled. The method according to the invention makes it possible to cheaply produce large numbers of micro heat exchangers.
摘要:
The object of the invention is to produce multipole magnetic systems that are composed of a plurality of individual magnetic components that preferably are made of rare-earth magnetic material. The invention relates to a method for producing and magazining at least one individual magnetic component, a magazine for at least one individual magnetic component by molding and for conventionally magnetizing the same. The invention further relates to a method of assembly for producing a magnetic system and to the resulting magnetic systems. The invention teaches that extremely flat multipole magnetic systems in the form of magnet rings or magnet strips and three-dimensional magnet bodies such as a magnetic scale, for example, can be produced by means of individual magnetic components that are directly adjacent to each other or are arranged at a distance by means of a molding material, for example. The magnetic systems taught by the invention are provided with a particularly high level of integration of the individual magnetic components and a uniform overall magnetization of the magnet segments which, acting as permanent magnet components, can be used in electromagnetic drives, magnetic path and angle measuring systems, magnetic couplings and valves, for example.
摘要:
A method to produce nonlinear optical microcomponents is described which makes it possible to employ material combinations not yet used to date. By means of X-ray depth lithography not only waveguide structures, but also microcell structures are produced, into which subsequently material of nonlinear optical properties is placed. By means of X-ray depth lithography and micromolding techniques a mold insert with a waveguide structure is produced as a positive mold, and the waveguide structure is impressed into a polymer base material by means of the mold insert. Then the impressed waveguide structure is filled with optically linear material, and after the filling operation at least one microcell structure is produced, at least in the areas of the optically linear material, into which microcell structure optically nonlinear material is placed. The microcell structure may also be impressed by means of another mold insert.
摘要:
A cross flow microfilter comprises a filter housing having a flow chamber wherein a fluid is introduced on one side and a concentrate is removed on the opposite side a collection chamber from which a filtrate is removed, and at least one microporous membrane over whose one surface the fluid to be filtered flows in a parallel stream and whose other surface is oriented toward the collection chamber, the membrane having pores of a width between about 0.1 micron and 30 micron, the improvement wherein the pores of the membrane have slit-shaped cross-sections and given profiles, and are formed by a plurality of webs arranged in rows with predetermined spacing and by terminating plates which cover the webs, and the webs are applied onto one of the two plates by X-ray lithographic means, X-ray depth lithographic-galvanoplastic means, or molding and galvanoplastic means.
摘要:
A spinning nozzle plate having nozzle capillaries is produced by depositing a layer 11 of a material whose characteristics can be changed by high-energy radiation (resist material) on a galvanic electrode 12. After resist layer 11 is irradiated in a predetermined pattern and after resist material is selectively removed by a treatment which utilizes the different material characteristics resulting from the irradiation, columns of resist material remain on galvanic electrode 12 to serve as negatives 21 of the nozzle capillaries. A galvanic layer 31 which encloses the negatives 21 of the nozzle capillaries is then produced on the galvanic electrode 12. Then the galvanic layer 31 is levelled and the negatives 21 are removed, as is the galvanic electrode 12. The process is particularly useful for producing spinning nozzle plates having nozzle capillaries with profiles of a special shape, essentially if the cross-sectional dimensions of the nozzle capillaries are small.