Abstract:
Procédé de mise en forme tridimensionnelle d'objets, tels que des objets peu transportables, caractérisé en ce qu'il est réalisé à partir de cordon(s) souple(s) et comprend les étapes successives suivantes : mise en place sur un gabarit (10) d'au moins un cordon (1) souple, ledit cordon (1) incorporant une résistance électrique chauffante entourée d'au moins un premier ensemble de fils en matériau polymère thermoplastique, raccordement du cordon (1) souple à une alimentation électrique pendant une durée donnée provoquant le ramollissement du polymère thermoplastique d'au moins le premier ensemble de fils entourant la résistance chauffante, le cordon venant épouser la forme imposée par le gabarit (10), refroidissement du cordon, et éventuellement retrait du gabarit (10) pour obtenir l'objet en trois dimensions.
Abstract:
A metal strip resistor (10) includes a resistor body (11) having a resistive element (13) formed from a strip of an electrically resistive metal material and a first termination (16) electrically connected to the resistive element to form a first junction (15) and a second termination (20) electrically connected to the resistive element to form a second junction (17), the first termination and the second termination formed from strips of electrically conductive metal material. The resistive element, the first termination, and the second termination being arranged mitigate thermally induced voltages between the first junction and the second junction.
Abstract:
A power semiconductor element (52) and a capacitor (46) have their electrodes joined to each other in a module. The power semiconductor element (52) is formed on a semiconductor substrate having first and second main surfaces. A power semiconductor module (11A) includes an electrode (48) through which a main current flows, joined to the first main surface, an electrode (60) through which the main current flows, joined to the second main surface, and a resin portion (70) sealing the semiconductor substrate, the capacitor (46) and the electrodes (48, 60). The capacitor includes electrodes (42, 44). The electrode of the capacitor and the electrode of the semiconductor element are joined to each other by solder (62) such that surfaces exposed through the resin portion are arranged on one continuous surface on which a cooler can be attached. Therefore, a power semiconductor module can be provided in which the capacitor and the power semiconductor element can effectively be cooled and the surge voltage can be reduced.
Abstract:
An ion detection assembly is described that includes a drift chamber, an inlet assembly, and a collector assembly. The drift chamber is formed of substantially non- conductive material and/or semi-conductive material. A patterned resistive trace is deposited on one or more of an interior surface or an exterior surface of the drift chamber. The patterned resistive trace is configured to connect to a source of electrical energy. The inlet assembly and the collector assembly are in fluid communication with the drift chamber. The inlet assembly includes an inlet for receiving a sample, a reaction region for ionizing the sample, and a gate for controlling entrance of the ionized sample to the drift chamber. The collector assembly includes a collector plate for collecting the ionized sample after the ionized sample passes through the drift chamber.
Abstract:
The method and system of high-restistance, multiple-conductor flat cables which contain integral tunable resistance sections suitable for fine tuning the resistance of a conductor to match the resistance of the conductors to one another within a specified target value. The method involves the design and creation of the high-resistance, multiple- conductor flat cables and the tuning of the resistance of the conductor.
Abstract:
A flexible potentiometer (74) acts as a horn actuator in an automobile horn control system. In a preferred embodiment, the flexible potentiometer is adhered to a flexible substrate (78), which is in turn adhered to the inside surface of an airbag hub cover (70). The shape of the flexible potentiometer (74) is chosen so that the automobile horn will sound when the driver presses against particular portions of the outside of the hub cover (70). The resistance of the flexible potentiometer (74) changes as its shape changes as the user presses against the hub cover (70). A horn control circuit (96) responds to extremely rapid changes in the resistance of the flexible potentiometer (74), but not to more gradual changes caused by, for example, temperature changes. Additional flexible potentiometers may be used to control other functions such as cruise control.
Abstract:
In one example a bend sensor is disclosed. The bend sensor extends into a media tray. The bend sensor has a tip where a deflection amount of the tip indicates a media parameter.
Abstract:
Electrically conductive braided structures having resistivity are disclosed. In an embodiment a structure comprises a plurality of nonconductive bias tows formed of fibers of a nonconductive material and at least one conductive tow formed of fibers including at least one conductive material. The plurality of nonconductive bias tows and the at least one conductive tow are arranged to form a braided structure.
Abstract:
Die vorliegende Erfindung betrifft ein Widerstandsbauelement (16, 36) für eine elektrische Maschine mit zumindest einem Widerstand (1, 21) und Isoliermaterial (5, 23, 25), wobei der Widerstand (1, 21) vom Isoliermaterial (3, 5, 23, 25) umgeben ist und das Widerstandsbauelement (16, 36) vorzugsweise als Hohlzylinder oder Hohlzylindersegment ausgestaltet ist, dessen Krümmungsradius dem Krümmungsradius eines Mantelgehäuses der elektrischen Maschine im Wesentlichen entspricht. Erfindungsgemäß weist das Widerstandsbauelement (16, 36) ein Befestigungselement (12, 32) auf.