Abstract: A pressure sensor module for measuring a differential pressure has a sensor chip for measuring a differential pressures and a module housing with at least two lead lines that are disconnected from one another by the sensor chip and in which lines differential pressures are at least intermittently present, wherein in at least one lead line a valve is disposed that closes the lead line when the sensor chip no longer disconnects the lead lines from one another.

Abstract: In a pressure sensor module according to the prior art, which is intended for detecting the pressure of a corrosive medium, the conventional sensor cell with a pressure sensor chip is modified in order to protect it from corrosion, which results in a large volume for a pressure-transmitting fluid. This is disadvantageous for the calibration and for a high degree of measurement precision.

Abstract: A related-art pressure sensor module is required to be sealed by a cover in a complicated manner, so as to hold pressure. A pressure sensor module (1) according to the present invention has a pressure sensor (6) in a sensor housing (8), the pressure sensor being easily mountable and pre-calibrated.

Abstract: A pressure sensor module of the prior art for measuring differential pressure has a further metal diaphragm and a further fuel, such as an oil, in order to prevent the two lead lines, in which different pressures prevail at least intermittently, from communicating with one another in the event of breakage of a diaphragm.

Abstract: Expandable heart valves for minimally invasive valve replacement surgeries are disclosed. The valves are rolled into a first, contracted configuration for minimally invasive delivery using a catheter, and then unrolled or unfurled at the implantation site. One- and two-piece stents may be used in conjunction with a plurality of flexible leaflet-forming membranes. The stents may include an annulus section, a sinus section with the membranes attached over sinus apertures, and an outflow section. Lockout tabs and making slots secure the stents in their expanded shapes. Alignment structure ensures concentric unfurling of the stent. Anchoring elements at the stent edges or in the stent body secure the valve within the annulus. A method of manufacture includes shape setting the sheet-like stent to ensure an outward bias during deployment. The stent may also include dear tracks for engagement with a gear mechanism for deployment.

Abstract: The current invention relates to a freeze-resistant pressure sensor, which is comprised of a pressure sensor housing (9), which encloses a pressure measurement chamber (10), and a pressure measurement cell (2). In addition, an elastically flexible compensation element (1) is provided, which is disposed in the pressure measurement chamber (10).

Abstract: A method of producing a number of pressure sensors includes joining a plurality of support bodies to a metal component, the metal component forming a diaphragm, applying a thin-film coating to produce the sensor elements, and finally dividing the metal component provided with the thin-film coating and the support bodies into a plurality of pressure sensors, each having a single one of the support bodies so that the number of pressure sensors formed corresponds to the plurality of the support bodies.

Abstract: A method for manufacturing pressure sensing elements which have a metal membrane and a resistive thin film arranged thereon, in which a blind opening is introduced into a base element, and the resistive thin film is applied on a side of the base element facing away from the blind opening. Provision is made for a plurality of pressure sensing elements to be manufactured simultaneously in one panel, and after application of the resistive thin film onto the panel, the panel is sectioned to yield the pressure sensing elements.

Abstract: A method of determining bad travel distances during traveling of a motor vehicle having a fuel tank, includes the steps of providing a differential pressure sensor at the fuel tank, determining by the differential pressure sensor a filling level of the fuel tank and producing a filling level pressure signal, determining by the differential pressure sensor a gas pressure inside the fuel tank and producing a gas pressure signal, and determining a bad travel distance by evaluating fluctuations in at least one of the pressure signals.

Abstract: A process and a device are proposed for manufacturing sensors, particularly those intended for the determination of pressure forces. In thick-film technology, initially at least one insulating layer (14) is produced on a pressure support (10), whereupon a pressure-sensitive resistance layer (12) and finally conductor paths (13) are applied. In a pressing tool (20-22), the layer arrangement (11-14) is then compressed together with a plastic pressure substance (15). Finally, the pressure support (10) is removed from the pressed article.