Abstract:
The joint comprises a first joint component (1) having axial aperture and a second joint component (4) having an axial aperture arranged coaxially with the aperture in the first joint component. Joint components (1) and (2) have a gasket ring (7) interposed therebetween to act as a fluid seal. The components are jointed by bolts (10); within the gasket are a number of stress or strain responsive elements equispaced around the entire periphery of the gasket, each comprising a pair of electrodes sandwiching a stress or strain responsive material. The responsive elements have opposed faces which are spaced from the opposed faces of the gasket and the electrodes and are connected to an output via leads (18, 19) to give an indication of the stress or strain within each individual element corresponding to the torque force applied to a proximate bolt.
Abstract:
Mit der vorliegenden Erfindung wird eine Trägervorrichtung für magnetisierbare Substrate, wie z.B. Edelstahlsubstrate, vorgeschlagen, die sich insbesondere zur Prozessierung von Dünnschichtsubstraten eignet Dazu umfasst die erfindungsgemäße Trägervorrichtung mindestens ein magnetisch wirkendes Grundelement (1) mit mindestens einer Aufnahme (7) für ein Substrat (2).
Abstract:
The invention concerns physical quantity sensors operating at high temperature, such as sensors used for measuring pressure inside heat engines in vehicles, aircraft or even rockets. The sensor (10) is a micro-machined sensor comprising at least a wafer (22) provided with electrical bond pads (18). In order to mount said sensor sealingly in a wall bushing likely to be brought to a temperature of about 200 DEG C at least, the method consists in connecting the sensor to the end of a cable (30) resistant at said high temperature, the cable comprising several electric conductors (36) embedded in an insulation (34) maintained in a sheath (32), the sheath passing in the wall bushing, the electrical conductors extending beyond the end of the sheath and being directly soldered on the bond pads of the wafer (22). The sheath is sealingly mounted in the wall bushing.
Abstract:
In the pressure sensor proposed, the pressure is transmitted through a diaphragm (14) and a punch (18) to a piezo-resistive sensor element (19). The sensor element (19) is printed on the substrate of a hybrid circuit (22) and comprises several resistance tracks (38, 39) disposed one above the other in layers, in particular in the form of a pyramid. This makes it particularly simple to transmit the pressure into the sensor in a controlled fashion. In addition, the hybrid circuit is located at one end of the punch stop (23). The compact mounting of the hybrid circuit (22) and piezo-resistive sensor element (19) gives a relatively small, inexpensive design, but a large and relatively error-free sensor signal.
Abstract:
The invention concerns a glow plug comprising a heating rod (11), a plug body (13), a mounting device (48) for mounting the heating rod, permitting axial translation movements of the heating rod relative to the plug body and ensuring impermeability between the heating rod and the plug body, and a load sensor (17) which is interposed in a proximal zone between the heating rod and the plug body. The plug body is composed of multiple distinct metal tubes (45, 95) which are rigidly assembled and extend each other axially, comprising, around said mounting device and the load sensor, a metal distal tube (45) extending a metal proximal tube (95), said distal tube having a lesser thickness than that of said proximal tube.
Abstract:
Die Erfindung betrifft ein Drucksensormesselement (26) für einen Drucksensor (10) zur Druckerfassung in einem Brennraum einer Verbrennungskraftmaschine während deren Betrieb, mit einer Trennmembran (54), einem Stößel (56) zum Übertragen von Auslenkungen der Trennmembran (54) auf ein Kraftmesselement (32) und einer den Stößel (56) aufnehmenden Hülse (36), die an einem dem Brennraum zuzuwendenden ersten Ende (12) durch die Trennmembran (54) verschlossen ist und an dem entgegen gesetzten zweiten Ende (16) zum Halten des Kraftmesselements (32) ausgebildet ist. Um das Drucksensormesselement (26) bei gleicher Funktionalität kostengünstiger herstellen zu können, wird vorgeschlagen, dass der Stößel (56) einstückig mit der Trennmembran (54) als Membran-Stößel-Einheit (38) ausgebildet ist, wobei die Hülse (36) und die Membran-Stößel-Einheit (38) aus dem gleichen Metall-Material gebildet sind.