摘要:
A printing press for processing sheet printing materials includes at least one printing unit, a computer and a measuring device for monitoring printing quality during a printing process. The measuring device has a sensing device for measuring by color or spectrally to register the printing material. At least one sheet-guiding element leads the sheet printing material past the sensing device. A measuring device for monitoring printing quality during a printing process in a printing press for processing sheet printing materials, is also provided.
摘要:
The medical implant is constructed of a fiber reinforced plastic. That fibers (50a, 50b) are generally aligned in layers (C, D, E), wherein the fibers of at least two different layers having different orientations. The fibers are long and oriented in relationship to the biomechanical requirements. The implant can oppose multi-directional forces and can be manufactured with the appropriate strength and stiffness.
摘要:
A device and method for spatially resolved photodetection and demodulation of temporally modulated electromagnetic waves makes it possible to measure phase, amplitude and offset of a temporally modulated, spatially coded radiation field. A micro-optical element (41) spatially averages a portion (30) of the scene and equally distributes the averaged intensity on two photo sites (51.1.51.2) close to each other. Adjacent to each of these photo sites (51.1) are two storage areas (54.1, 54.2) into which charge from the photo site can be moved quickly (with a speed of several MHz to several tens or even hundreds of MHz) and accumulated essentially free of noise. This is possible by employing the charge-coupled device (CCD) principle. The device combines a high optical fill factor, insensitivity to offset errors, high sensitivity even with little light, simultaneous data acquisition, small pixel size, and maximum efficiency in use of available signal photons for sinusoidal as well as pulsed radiation signals. The device and method may be used in a time-of-flight (TOF) range imaging system without moving parts, offering 2D or 3D range data.
摘要:
The present invention relates to a method for detecting the amplitude and/or phase position of an at least partly intensity-modulated signal (PE(t)), and a corresponding device for carrying out the method. In order to provide a method and a device which make it possible to avoid the disadvantages of the start of the art, according to the invention a method and a device for carrying out the method are proposed, the method having the following steps: i) Detecting an instant value of the at least partly intensity-modulated signal (PE(t)), ii) Detecting an instant value of a first reference signal (Um(t)), the first reference signal (Um(t)) having a frequency (ω2) which differs from the frequency (ω1) of the intensity modulation, iii) Mixing the detected instant value of the at least partly intensity-modulated signal (PE(t)) with the detected instant value of the first reference signal (Um(t)) to obtain a mixed-signal value (UΔ), iv) Detecting an instant value of a second reference signal (U1(t)), the second reference signal (U1(t)) having a frequency (Δω) which also differs both from the frequency (ω2) of the first reference signal and from the frequency (ω1) of the intensity modulation, v) Detecting an instant value of a third reference signal (UQ(t)), the third reference signal having the same frequency (Δω) as the second reference signal, but being phase-shifted to the second reference signal (U1(t)), vi) Mixing the mixed-signal value (UΔ) with the detected instant value of the second reference signal (U1(t)) to obtain a first measurement signal value, vii) Mixing the mixed-signal value (UΔ) with the detected instant value of the third reference signal (UQ(t)) to obtain a second measurement signal value, and viii) Calculating the amplitude and/or phase position of the at least partly intensity-modulated signal (PE(t)) from the two measurement signal values.
摘要:
An improved support system for stabilizing the spine (A) for surgical treatment or other spinal problems which necessitates a fixation of the spinal components (B, C). The system includes a smooth spinal rod (30), at least two connectors 14 slidable along said rod (30), at least two pedicle screws (12) for fixation to a healthy pedicle bone (B, C) on either side of the vertebrae to be repaired, and a one-piece clamping member (14) connecting said pedicle screws (12) to said rod (30) and supporting said connector (14) for limited pivoting movement with respect to the screws (12) and accurate positioning of said rod (30) with respect to the pedicle screws (12).
摘要:
The elongated stabilization member comprises a composite rod (R) having a uniform cross-section essentially throughout its length. The rod (R) has at least first and second segments (A, B, C) each of which has a different modulus of elasticity. Preferably the rod (R) is comprised of plastic with carbon fibers disposed therein and said first and second segments (A, B, C) have different orientation densities of fibers or lengths to provide said different moduli of elasticity.
摘要:
The cylindrical fiber reinforced implant is designed to be inserted between two adjacent vertebrae. The implant having an outer wall with a general cylindrical or oval shape and preferably an open volume for bone filling. Said wall having reinforcing fibers which at least in part are oriented in a first direction. A support extending within said volume having reinforcing fibers which are at least in part oriented in a second direction, said first and said second directions are different. Preferably the fibers of the outer wall are at least partly concentrically oriented. The support is preferably a separately formed part, that is inserted into the outer wall.
摘要:
The longitudinal implant is fastened to bones on either side of a damaged area through a connecting device. Said implant is comprised of a filament or fiber composite material and said connecting device is made of a material harder than said longitudinal implant. The longitudinal implant is preferably made of a carbon filament composite material, wherein the filament are encapsulated in a polymer matrix.
摘要:
A fusion implant apparatus, in for the replacement of a vertebra or an intervertebral disc, having at least one biocompatible structure. The structure is made of a composite material having reinforcing fibers, and has a first and second face to engage adjacent bone structures to be fused, struts extending between the first and second faces, and a hollow interior space for reception of bone growth inducing substances. The fibers are long fibers and the majority of these long fibers have a direction that follows the longitudinal forces upon the first and second faces, which is the direction of trabecular structures of the adjacent bone structure, so that a majority of long fibers are essentially an extension of these trabecular structures.
摘要:
A transistor and integrated circuit-free remotely indicating status device for holding tanks for recreational vehicles and pleasure boats contains no moving parts, is resistant to corrosion, and is inexpensively and simply manufactured and installed. In one embodiment, common LED indicating devices may be alternatively toggled between water tank and waste tank sensor circuits.