Abstract:
Measures are introduced to make possible a low-cost packaging of sensor chips having a media access. For this purpose, the sensor chip is first mounted on a substrate and is contacted. The sensor chip is then at least partially embedded in a molding compound. Finally, at least one portion of the media access is produced by the subsequent structuring of the molding compound.
Abstract:
Unsaturated compounds are separated from liquid hydrocarbon mixtures by adsorbing the unsaturated compounds on a macroporous cation exchange resin and desorbing the unsaturated compounds with a mononuclear aromatic compound.
Abstract:
Aromatic compounds can be separated from slack wax in a continuous cyclic process using a macroporous metal ion loaded cation exchange resin involving successive steps of adsorption, purge, desorption and purge.
Abstract:
A control and regulation device for a vehicle travel drive, which comprises two hydrostatic transmissions (3, 4) of adjustable transmission ratios, each comprising a hydraulic pump (12, 13) and a hydraulic motor (14, 15), which are in driving connection with two vehicle track arrangements (18, 19) and have each an adjustment device (30, 24; 31, 25) controllable with control signals (v.sub.l, v.sub.r) for adjusting the transmission ratio, with a control section comprising a desired-value setting apparatus (5) and a signal processing means (42, 43), whereby the desired-value setting means sets transmission ratio desired-values of each hydrostatic transmission, employing respective adjustable control levers (36, 37), and outputs desired-value signals (s.sub.l, s.sub.r), and the signal processing apparatus processes desired-value signals to control signals (s.sub.l, s.sub.r) and outputs the latter. For the avoidance of undesired travel speed alterations the signal processing (42, 43) is formed for the formation of a min./max. window from desired-value signals (s.sub.l, s.sub.r) for the determination of control signals (v.sub.l, v.sub.r) if the mean value of v.sub.l and v.sub.r lies within the min./max. window, and if not, corrects the control signals to be outputted.
Abstract:
Method of low-loss thermal energy storage in and withdrawal from a heat accumulator connected with an energy source and a heat consumer in a circulatory system through which a heat-carrying flow medium circulates which includes passing the flow medium through the energy source so as to withdraw thermal energy from the energy source and effect absorption of the thermal energy by the flow medium, guiding the flow medium in respective layers within the heat accumulator in a direction from the center of the heat accumulator toward the periphery thereof so as to store the thermal energy in a heat storage mass disposed in the heat accumulator; and guiding the flow medium in the layers thereof through the heat accumulator in a direction from the periphery of the heat accumulator to the center thereof, and passing the flow medium from the heat accumulator through the consumer so as to withdraw thermal energy therefrom and transfer it to the consumer; and apparatus therefor.
Abstract:
The invention relates to a printed circuit board arrangement, more particularly a multilayer printed circuit board. The printed circuit board arrangement comprises at least two printed circuit boards which are arranged parallel to one another and connected to one another. According to the invention, in the case of the printed circuit board arrangement of the type mentioned initially, at least one surface region of one printed circuit board is connected to another printed circuit board of the printed circuit board arrangement by means of an element embodied in an elastic and/or damping fashion in such a way that an oscillatory system, more particularly a spring-mass system, an oscillatory bending strip or a flexurally oscillatory board is formed by means of the surface region of the printed circuit board and the element.
Abstract:
The invention relates to a printed circuit board arrangement, more particularly a multilayer printed circuit board. The printed circuit board arrangement comprises at least two printed circuit boards which are arranged parallel to one another and connected to one another. According to the invention, in the case of the printed circuit board arrangement of the type mentioned initially, at least one surface region of one printed circuit board is connected to another printed circuit board of the printed circuit board arrangement by means of an element embodied in an elastic and/or damping fashion in such a way that an oscillatory system, more particularly a spring-mass system, an oscillatory bending strip or a flexurally oscillatory board is formed by means of the surface region of the printed circuit board and the element.
Abstract:
A sensor device, having a flexible printed circuit board that has a fastening section for a chip structure, a chip structure situated on the fastening section of the flexible printed-circuit board, and a damper element for damping the chip structure from mechanical influences. The fastening section of the flexible printed circuit board, the chip structure and the damper element are situated one on top of the other.
Abstract:
A sensor system includes a supporting element and a sensor element attached to the supporting element and having a main plane of extension. The supporting element has (i) at least one contact element for electrical contacting of the sensor system and (ii) at least one relief structure for stress decoupling, the at least one relief structure being situated in a plane parallel to the main plane of extension essentially between the at least one contact element and the sensor element.
Abstract:
A sensor device, having a flexible printed circuit board that has a fastening section for a chip structure, a chip structure situated on the fastening section of the flexible printed-circuit board, and a damper element for damping the chip structure from mechanical influences. The fastening section of the flexible printed circuit board, the chip structure and the damper element are situated one on top of the other.