摘要:
The invention relates to a micro-mechanical device for determining the oxygen content in a gas mixture or gas matrix including a dumbbell-shaped element having a base plate and two volumes of the gas to be measured arranged on opposing sides of a center portion of the base plate. The center portion of the base plate is held by a clamping band which is torsionally held such that the base plate rotates about the center portion. A mirror element on the base plate is used to determine a rotational position of the base plate and a compensation coil for conducting current and creating a rotational force to counter any rotation by the base plate is arranged on the dumbell-shaped element. The dumbbell-shaped gas volumes, mirror and compensation coils are integrated as a coherent structural unit on a base plate in silicon micro-mechanical design, or the dumbbell-shaped gas volumes comprise a photo-active glass base plate and two cover plates bonded thereto and be embodied, together with the mirror and compensation coils, as a coherent structural unit.
摘要:
The invention relates to a band rejection filter comprising a piezoelectric substrate and a serial connection of at least two pi-elements which are arranged on the substrate. The pi-elements respectively comprise at least two electro-acoustic parallel resonators and at least one electro-acoustic serial resonator, and are connected by a first series inductance. Said serial connection comprises, on a first inlet, a second series inductance and on an outlet, a third series inductance. Said resonators have a pole-zero plot of approximately 9% or more.
摘要:
A first aspect of the present application relates to a method for producing sound-damping, sound-absorbing and/or insulating molded material. More specifically, the method according to the invention relates to a method for producing said molded materials, wherein the fibrous material is wound around at least two carriers and subsequently the wound blank thus obtained remains on the carriers so as to be permanently solidified in order to obtain the molded material according to the invention. A further aspect of the present application concerns the molded material thus obtained, in particular in the form of molded mats or molded objects. Said molded material can be used, in particular, in mufflers. Finally, the following application concerns a device for producing said molded materials from fibrous material.
摘要:
The invention relates to an underwater drilling arrangement and a method for making a bore in a bed of a lake, sea or river, having a service platform which can be lowered for positioning on the lake, sea or river bed, a guide tube which is mounted so that it can be rotated, axially moved as well as fixed on the service platform, a drill rod with drill head which is arranged in the guide tube and can be driven via a drill drive, and a guide tube drive which is arranged on the service platform for incorporation of the guide tube in the lake, sea or river bed. In order to reduce the friction which arises upon incorporation of the guide tube between the outer shell surface of the guide tube and the earth material of the lake, sea or river bed, the guide tube has a sliding support means.
摘要:
The invention relates to an underwater drilling arrangement for making a bore in the bed of a lake, sea or river with a platform which can be lowered for positioning on the bed of the lake, sea or river, a drill drive which is arranged on the service platform and a drill rod with drill head which can be driven in rotation via the drill drive. It is provided that the service platform comprises a guide tube, on the inner side of which at least one linear guide is arranged, along which at least one part of the drill drive is guided axially displaceably and the guide tube is held so that it can be adjusted and fixed in a mount of the service platform. The invention further relates to a method for creating a bore in the bed of a lake, sea or river.
摘要:
A drive system for a vehicle includes a drive unit having a drive member rotatable around an axis of rotation (A) and at least one centrifugal mass pendulum unit having a deflection mass carrier and a deflection mass arrangement supported at the deflection mass carrier such that it can be deflected from a basic relative position with respect to the latter by a deflection mass coupling arrangement. A radial distance of the deflection mass arrangement relative to the axis of rotation (A) thereof changes when the deflection mass arrangement is deflected from the basic relative position.
摘要:
The invention relates to a multipart sprocket (1), in which an inner ring (2) for fixing the multipart sprocket (1) to a wheel hub comprises through-holes (5) which are located on a common hole circle, wherein the inner ring (2) on the periphery thereof comprises radially outwardly directed inner ring lugs (2A) for receiving a gear rim (8), and the gear rim (8) comprises radially inwardly directed gear rim lugs (11) which are spatially associated with the radially outwardly directed inner ring lugs (2A), and means (12, 13, 14) are present, which connect the inner ring (2) and the gear rim (8) axially and radially.
摘要:
A torque transmission device of a motor vehicle which transmits torque from an internal combustion engine to a torque converter, wherein the torque transmission device includes transmission part connected to the torque converter in a first radius region having a quantity of fastening elements lying on a first radius and connected to the internal combustion engine in a second radius region having a quantity of fastening elements lying on a second radius. To reduce loading of the fastening elements, the transmission part is provided with recesses in the first radius region and/or in the second radius region that extend at least partially over the first or second radius region and lessen the axial rigidity of the transmission part.
摘要:
A surface acoustic wave filter includes an acoustic track bounded by reflectors, at least a first input transducer and at least a second input transducer acoustically coupled to the acoustic track that are connected in parallel and connected to an asymmetric input port, at least two first output transducers acoustically coupled to the acoustic track that are connected in parallel and connected, to a first terminal of a symmetric output port and at least two second output transducers acoustically coupled to the acoustic track that are connected in parallel and connected to a second terminal of a symmetric output port. Each first output transducer in the acoustic track and corresponding second output transducers are side-by-side and are electrically connected in series via a first bus bar.
摘要:
An electric filter has a band-pass filter that includes a track with acoustically coupled electroacoustic transducers. The filter includes a band-stop filter with at least one electroacoustic series element and at least one electroacoustic parallel element. The series element of the band-stop filter is connected in series to at least one of the transducers of the band-pass filter. The parallel element of the band-stop filter is arranged in a shunt arm that is electrically connected to at least one of the transducers of the band-pass filter. In at least one of the electroacoustic elements of the band-stop filter, the resonance frequency and the anti-resonance frequency lie outside the passband of the band-pass filter.