Abstract: A variable resistor is configured such that a contact of a contact arm is prevented from contacting a driver plate even when the height of a disk section of a sliding contact is reduced so as to reduce the height of the variable resistor. A sliding contact includes an annular driver plate disposed on the top surface, a disk section folded from the external periphery of the driver plate to the back side, and the semi-circular contact arm provided in the external periphery of the disk section opposite to the folded portion. In the external periphery of the driver plate opposite to the folded portion on the back surface thereof, i.e., in a portion of the disk section folded to the back side of the driver plate opposing the contact of the contact arm, a step is provided such that a gap between the driver plate and the contact arm is increased.

Abstract: An electrical component includes a base, connector elements connected to the base, an intermediate layer on a surface of the base, and a protective layer on the intermediate layer. The intermediate layer and the protective layer are produced from a same material. The material contains a solvent. The solvent has a negative affect on electrical properties of the component. The intermediate layer has a lower content of solvent than the protective layer.

Abstract: A carbon monoxide (CO) detection unit incorporates a sensor which is a film or layer of NixCo1-xOy where x is from 0.1 to 0.9, e.g., spinel. The CO is detected by measuring the change in the electrical properties of the sensor. The detector can measure CO concentrations below 100 ppm and is capable of operating at room temperature and can be applied to domestic, industrial, medical and vehicular use.

Abstract: The invention relates to a circuit breaker, preferably for high or medium voltage. The movable conact of each breaker pole is connected, via mechanical means for transmitting movement, to a movable part of an electric motor (6). The movable contact and the means for transmitting movement are arranged in a gas-tight apparatus chamber (31) surrounded by a gas-tight apparatus housing (9) of insulating material such as porcelain. In accordance with the invention the motor (6) is arranged entirely in the apparatus chamber (31). The invention also relates to an electric plant provided with the breaker claimed, uses of the breaker claimed and a method of breaking electric current in which the breaker claimed is used.

Abstract: A high-power resistor comprises a plurality of resistor elements (1), made of sheets of an electrically conductive resistance material, with a first (13) and a second (14) terminal. The resistor elements are mutually separated by disc-shaped insulating first shims (2). Said first and second terminals are connected to adjacently located resistor elements so that the respective first terminals are connected to a first terminal and that the respective second terminals are connected to a second terminal. Two adjacent resistor elements form a current path, whereby, viewed in a direction perpendicular to the plane of the sheets, said first and second terminals, respectively, are so mutually positioned that, for a current supplied thereto, the current path in one resistor element substantially overlaps the current path in an adjacent resistor element and hence carries current in mutually opposite directions in the two adjacent resistor elements.

Abstract: A Resistor bank has first and second supporting member. Held on to the supporting members is a resistor element comprising a strip of resistor material which is bent into a zigzag shape. The strip is continuous and has a non-planar cross section profile. A plurality of insulating spacers mounted end to end on each of the first and second supporting members isolate the element from the first and second supporting members. The engaging surfaces of adjacent spacers are of a complimentary shape thereby to enable each spacer to move relative to each adjacent spacer with any flexing of the relevant one of the supporting members. The element is held by a plurality of clips each at a bend thereof on to a respective one of the supporting members. Each clip has at least one fastening lug for insertion into at least one fastening hole in a corresponding bend in the element.

Abstract: In a motor-driven slide type variable resistor, the tensioning of a toothed loop belt joined to an operating lever is adjusted with a pin adjusted to change the distance between a toothed pulley and a follower pulley in order to adjust a traveling speed of the operating lever.

Abstract: A sensor can be configured to generally include a flow channel block having a flow channel formed therein, and a sensor chip for sensing fluid flow, wherein a fluid in the flow channel surrounds the sensor chip. Alternatively, the sensor chip can be fastened at one side to a substrate and on another side of the substrate to a core tube inserted into the flow channel. This core tube provides electrical insulation and corrosion protection to the sensor chip, reduces flow noise, (and by the non-intrusive nature of the measurement) essentially eliminates the risk of fluid leakage, and maintains the fluid super-clean and contamination-free while improving structural integrity for the thermal measurements derived from the sensor chip. The use of such a core tube configuration also can protect the sensor from corrosion, radioactive or bacterial contamination, overheating, or freeze-ups.

Abstract: A ceramic electronic component includes a component body having semiconductive ceramic layers and internal electrodes. The semiconductive ceramic layers and the internal electrodes are alternately laminated. The semiconductive ceramic layers have a relative density of about 90% or less and contain no sintering additives. The component body is provided with an external electrode on each side thereof. The ceramic electronic component has a low resistance and a high withstand voltage.

Abstract: A resistor string that may have two resistor matrices laid out back-to-back with selected or all nominally equipotential nodes of the two matrices being interconnected. In certain applications, the matrix may have switch connections at each node, with the second matrix being an inactive matrix that may have the same number or different number, typically fewer resistors than the first matrix. In another embodiment, separate matrices may be used, and the inactive matrix may be smaller and have fewer resistors of a lower value to minimize the effect of gradients across the substrate. Preferred matrices and node connection switch configurations, as well as various embodiments of these and other features of the invention are disclosed.

Abstract: The cost and complexity of an electronic pressure sensitive transducer are decreased by constructing such a transducer directly on a printed circuit board containing support electronics. Conductive traces are formed on the printed circuit board to define a contact area. A flexible substrate having an inner surface is positioned over the contact area. An adhesive spacer, substantially surrounding the contact area, attaches the flexible substrate to the printed circuit board. At least one resistive layer is deposited on the flexible substrate inner surface. In use, the resistive layer contacts at least two conductive traces in response to pressure applied to the flexible substrate to produce an electrical signal indicative of applied pressure.

Abstract: A multi-directional control device comprising a base (1) on which is mounted a stick (2) which is maintained in a non-active central position by elastic means (3) and which can be manually inclined to any orientation around said non-active central position against the force of said elastic means (3). Four hall effect sensors (4) are associated with said base (1) and one magnet (5) attached to said stick (2). The Hall effect sensors (4) are adapted to issue a signal in response to the variations in magnetic field produced by the movement of said magnet (5) when the stick (2) is inclined.

Abstract: An illumination-type rotary variable resistor. A housing includes a round bottom plate, a cylindrical outer wall protruding in a first direction, and a cylinder. This housing houses an annular insulating substrate having a resistor film and LED conductive film on its surface facing in the first direction. An operating knob includes a cylindrical operating member rotatably fitted to the cylinder and a flange having a resistor slider and LED slider on a face in a second direction being opposite to the first direction. The operating member has a through hole along the first direction, and the flange is attached to the operating member in the second direction. A cover covers the housing and flange. A surface-mount LED is disposed in the through hole at an end which is facing in the second direction. A resistor slider slides on the resistor film, and a LED slider slides on the LED conductive film.

Abstract: The present invention relates to a resistive superconducting current limiter with a meandering shape. This current limiter avoids current density peaks at the turning points (12) or corners of the conductor track (10, 11) in that the central path of the fault current when limiting occurs is artificially increased by appropriate design of the turning points. For this purpose, conductor material is removed in the region of the inner edge of the turning points (13), or the electrical bypass is reinforced at its outer edge (14).

Abstract: A ball grid array resistor network has a planar substrate formed of an organic material. The substrate preferably is a printed circuit board. The substrate has a top and bottom surface. A ball pad is located on the bottom surface. A low temperature resistor is located on the bottom surface and is connected to the ball pad. A solder mask is located over the first surface except for the ball pads. A conductive ball is attached to the ball pad. A reflowed solder paste connects the conductive ball to the ball pad. Several embodiments of the invention are shown.

Abstract: A variable-resistance element exhibiting high wear resistance and superior microlinearity includes a resistor constituted from a first resistive layer containing a first reinforcing material and a second resistive layer containing conductive carbon black and a second reinforcing material, the second resistive layer being disposed on the first resistive layer. The first reinforcing material is pulverized carbon fibers having an average particle size of 3 ?m. The second reinforcing material is thermal black having an average particle size of 0.35 ?m.

Abstract: A resistor structure is disclosed that is constructed out of two layers of polysilicon. The intrinsic device is made using the top layer which is either a dedicated deposition, or formed as part of an existing process step such as a base epi growth in a BiCMOS flow. This poly layer can be made with a relatively high (greater than 2000 ohms per square) sheet resistance by appropriate scaling of the implant dose or by insitu doping methods. In this invention this layer is arranged to be about 1000 A or less thick. Such a resistor form with this thickness has been shown to demonstrate a better standard; deviation of resistance compared to resistors made with a thicker layer. Additionally, practical resistors made in elongated forms demonstrate better standard deviations of resistance when five bends were incorporated into the form. The resistor ends are formed by the addition of a bottom poly layer in a self aligned manner with a deposition that may already be part of the process sequence.

Abstract: A carbon monoxide (CO) detection unit incorporates a sensor which is a film or layer of NixCo1-xOy where x is from 0.1 to 0.9, e.g., spinel. The CO is detected by measuring the change in the electrical properties of the sensor. The detector can measure CO concentrations below 100 ppm and is capable of operating at room temperature and can be applied to domestic, industrial, medical and vehicular use.

Abstract: A ball grid array resistor network that has a ground plane to reduce noise and improve signal integrity. The ball grid array resistor network includes a substrate having a first and a second surface and vias that extending through the substrate between the first and second surfaces. Resistors are located on the first surface between the vias. Conductors are located over the vias and are electrically connected to ends of the resistors. A cover coat covers the conductors and resistors. A ground plane is located on the second surface. An insulating layer is located over the ground plane. Ball pads are located over the vias. The ball pads are electrically connected to the vias. Solder spheres are attached to the ball pads.

Abstract: On a surface of a transfer sheet, a resistor paste is first patterned, and a binder resin thereof is then heat-cured to form resistor layers. Next, an electrode paste containing a binder resin, which has a thermosetting temperature lower than a thermosetting temperature and a glass transition temperature of the binder resin of the resistor layers, is patterned on surfaces of the resistor layers and is then heat-cured, thereby forming electrode layers. By the steps described above, powdered silver contained in the electrode layers is unlikely to ooze into the resistor layers.