Abstract: A flow meter is disclosed, which composes an operational amplifier, a digital potentiometer, a sensor coil, and fixed resistors R1, R2 and R3. One end of the coil is connected to the non-inverting input terminal of the amplifier, the other end is grounded. The R1 is connected between the non-inverting input terminal and the output terminal of the amplifier, the inverting input terminal of the amplifier is connected to one end of R2 and R3, the other end of R2 is connected to the output terminal of the amplifier, and the other end of R3 is grounded. The connecting end of R2 and the output terminal of the amplifier is connected to the high side of the potentiometer, the grounded end of R3 is connected to the low side of the potentiometer, and the inverting input terminal of the amplifier is also connected to the sliding end of the potentiometer.

Abstract: Flow measurement systems and methods are provided. A flow measurement system can include at least one heat-producing computing device (160) having at least one fluid inlet (120) and one fluid outlet (130). The system can further include at least one inlet fluid inlet temperature sensor (140) and at least one outlet fluid temperature sensor (150). At least one current sensor (160) measuring the current supplied to at least a portion of the at least one heat-producing computing device (110) can also be included with the system (100). The system can also include at least one calculating device (180) adapted to calculate the inlet fluid flow rate based at least in part upon the sensed inlet fluid temperature, the sensed outlet fluid temperature, and the sensed current flow.

Abstract: The present invention relates in general to vortex shedding flow meters with enhanced sensitivity for sensing and measuring vortex frequencies.

Abstract: An air pressure drop detecting device for detecting air flow volume of a cooling fan includes a first pressure sensor, a second pressure sensor, and a display unit. The cooling fan has an air inlet and an air outlet opposite to the air inlet. The first pressure sensor is positioned in the air inlet and detects a plurality of first pressure values. The second pressure sensor is positioned in the air outlet and detects a plurality of second pressure values. The display unit is connected to the first pressure sensor and the second pressure sensor to display the first pressure values and the second pressure values, and a position of the cooling fan in the computer case is determined by the pressure difference between the first pressure values and the second pressure values.

Abstract: A Flow Meter that can be installed on an existing pair of wires that connect an existing electric valve and its controller without the need to lay out additional electrical wiring, which comprises a hollow main body designed to house the internal components of the Flow Meter; one or more pipe clamps used to attach the main body to the existing pipe; an impeller that revolves when water flows through the pipe; an electric circuit; a circuit housing; a sensor; a sensor housing; and a cover.

Abstract: A method of connecting a first threaded tubular to a second threaded tubular includes: engaging threads of the tubulars; and rotating the first tubular relative to the second tubular, thereby making up the threaded connection. The method further includes, during makeup of the threaded connection: detecting a shoulder position; and after detection of the shoulder position, monitoring for potential yielding of the threaded connection. The method further includes terminating the makeup according to: a first criterion in response to detection of the potential yielding; or a second criterion in response to absence of the potential yielding.

Abstract: Systems and methods for measuring environmental conditions of a sensing location, where a sensor including a measuring surface and a wire coupled in tension to the measuring surface over which ultrasonic signals may be transmitted and sensed. Signal analysis of ultrasonic signals transmitted over the tensioned wire are analyzed to measure one or more environmental conditions acting on the measuring surface.

Abstract: A force sensing device and a force sensing system are provided. The force sensing device comprises at least one magnetic material layer and a force sensing layer which can move with respect to each other. The force sensing layer comprises two sensing elements. The first sensing element, disposed along a first axis of the magnetic material layer, generates a sensing signal varying with a first lateral force applied on the force sensing device. The first lateral force enables the first sensing element to move relatively with respect to the magnetic material layer along the first axis. The second sensing element, disposed along a second axis of the magnetic material layer, generates a sensing signal varying with a second lateral force applied on the force sensing device. The second lateral force enables the second sensing element to move relatively with respect to the magnetic material layer along the second axis.

Abstract: A sensor system having at least two phase tracks spaced apart in the axial direction of a rotation axis of a rotating body and situated circumferentially around it, having at least one sensor element for each phase track situated fixed in place opposite the rotating body to detect the particular phase track. At least one first sensor element assigned to a first phase track, with at least one second sensor element assigned to the first phase track, is connected to at least one first sensor element bridge, extending parallel to the first phase track and perpendicularly to the rotation axis of the rotating body, and at least one sensor element assigned to a second phase track, with at least one sensor element assigned to the first phase track, is connected to at least one second sensor element bridge extending perpendicularly to the two phase tracks and parallel to the axis.

Abstract: A load weight determining apparatus and method for an electric chain block having a lifting-lowering motor and an inverter controller. The lifting-lowering motor rotates a sheave to wind up and unwind a chain engaging the sheave. The load weight determining apparatus has a current detecting element detecting a motor current supplied to the lifting-lowering motor from the inverter controller, and a load weight determining unit. A torque current is calculated from the motor current detected by the load weight determining unit, and a variation cycle of the torque current is calculated. An average torque current value over a period of time corresponding to the variation cycle is calculated, and the average torque current value is compared with a set threshold to perform load weight determination.

Abstract: Measuring container fluid levels and fluid volumes using pressure sensors. An immersion tube is used to detect and convey the pressure at a bottom of a container, and a sender circuit converts the pressure into a liquid level or liquid volume. The sender circuit is isolated from the fluid container for fuel applications using corrosion resistant elastomers.

Abstract: A system and method for sampling air in a controlled environment having air sampling devices therewithin. A controller, outside the controlled environment, in separate flow communication with each sampling device via first vacuum tubes, and having a manifold for directing air from the first vacuum tubes to one or more second vacuum tubes. A vacuum source outside the controlled environment, in flow communication with the controller via the second vacuum tube(s), providing suction, and being controlled by the controller to generate flow through the first vacuum tubes. A flow switch between each sampling device and the vacuum source, for measuring and controlling the flow rate through a corresponding first vacuum tube. An alarm inside the controlled environment, is activated by a flow switch when the corresponding flow rate deviates from a desired value by a predetermined amount.

Abstract: Improvements are provided in the detection of atmospheric vapors by ionizing them near ambient pressure, and analyzing them as ions. Lowest detection limits of parts per quadrillion (ppq) concentrations are enabled by a combination of improvements, including the use of a filter to remove occasional intense signal from explosive particles. Several sources of chemical background are identified and solutions for their reduction or elimination are presented. Gains in response time may be achieved by operating at elevated temperature. When the ionizer is an electrospray source, the use of high boiling point solvents is indicated. An increased selectivity is achieved by operating a differential mobility analyzer (DMA) in series with a mass spectrometer. However, ppq sensitivities require various improvements in the DMA system including a special coupling to the ionizer, controlling the temperature in the DMA pump circuit, avoidance of induction on the DMA electrodes from heating devices, etc.

Abstract: The gas trap collects formation gases from oil well fluid flow in real time. Gases are released by the fluid when agitated by an agitating pipe which stirs the fluid flow; the gases are then collected and separated from the fluid to be analyzed. The gas trap does hinder the flow of formation cuttings in the drilling fluid flow line, but allows the formation cuttings to flow around the agitator pipe and out to the sample box.

Abstract: A sampler for chemical analyzers includes a syringe placed internally to the sampler for withdrawing from one or more containers predetermined quantities of substances for carrying out chemical analysis; a support and movement group of the syringe; a transponder stably associated to the syringe and containing information relating to a plurality of the technical specifications of the syringe. The sampler also includes: a communication device with the transponder to read the information on the syringe; a logical control unit operatively connected to the communication device to determine, by means of such information, the type of syringe placed internally to the sampler and to activate an acknowledgment signal when it is suitable to perform the withdrawal of predetermined quantities of substances, and a blocking signal of the sample when the type has technical specifications not suitable to perform the withdrawal.

Abstract: In one embodiment, a stage apparatus includes a wafer stage, at least one conduit, and a measurement stage. The at least one conduit is coupled between the wafer stage and a ground. The measurement stage is configured to approximately follow the wafer stage during at least a portion of a motion of the wafer stage, and is configured to carry the at least one conduit to reduce disturbances on the wafer stage caused by the at least one conduit.

Abstract: According to one embodiment, a synthetic resin material test method includes: forming a first plane on a sample made of first synthetic resin material by cutting or grinding the sample; obtaining measurement values at a plurality of positions on the first plane by pressing the first plane at the positions; and outputting the measurement values or physical quantities calculated based on the measurement values, in association with the respective positions.

Abstract: Various embodiments of an adjustable simulator apparatus for testing vehicle components are disclosed herein. The apparatus can be used to test linearly translatable components, such as transmission or brake components, without connecting them to every cooperating component as they would be in a vehicle. In one embodiment, an adjustable simulator apparatus includes a housing having a bore along a generally longitudinal axis and a first retainer and a second retainer disposed in the housing and spaced apart from one another. At least one of the first and the second retainer is adjustable in its position and a compressible member is disposed between the retainers. The apparatus further includes a piston translatable within the bore and a mechanical stop disposed at least partially within the bore of the housing and extends through the second end of the compressible member.

Abstract: A power transfer unit for a vehicle is provided having a transfer sleeve, a flanged ring gear, an output shaft, and a clutching assembly. The transfer sleeve, the flanged ring gear, and the clutching assembly are disposed in a housing about an axle shaft connected to a center differential. The transfer sleeve is drivingly engaged with a carrier of the center differential and the flanged ring gear is disposed about the transfer sleeve and drivingly engaged with the output shaft. The clutching assembly includes a locking collar and a clutch. The clutch may be engaged to transfer torque through the transfer sleeve to the output shaft through the flanged ring gear and the locking collar may be engaged to drivingly engage the transfer sleeve with the output shaft through the flanged ring gear.

Abstract: A vibration actuator includes an elastic member and a relative movement member. The elastic member generates oscillatory waves by oscillation of an electromechanical conversion element. The relative movement member with which the elastic member is in pressure contact is driven by the oscillatory waves to rotationally move with respect to the elastic member. Of the elastic member and the relative movement member, at least one member has a plurality of spaces at one contacting face opposite to the other contacting face of the other member. The spaces are filled with friction coefficient adjusting substances so that a coefficient of friction of the one contacting face of the one member changes in a radial direction.

Abstract: An auxiliary device for a sliding module is disclosed. The auxiliary device includes a substrate having a guiding portion, a belt wheel rotatably disposed on the substrate, a wire disposed on the belt wheel, and a movable or sliding rack utilized for pivoting the wire. The sliding rack is movably attached to the guiding portion of the substrate and is capable of assembling with a sliding module. When the sliding rack driven by the sliding module is reciprocally moved, the sliding rack drives the wire to rotate the belt wheel, thus to minimize the unsmooth operation compared to conventional skills.

Abstract: An adjusting means for adjusting two vehicle parts relative to each other, in particular for the longitudinal setting of a vehicle seat is provided. The adjusting means comprising an adjusting gear unit arranged on a first vehicle part and a spindle arranged on a second vehicle part, which extends in longitudinal direction, is in engagement with the adjusting gear unit and along which the adjusting gear unit is movable for adjusting the first vehicle part relative to the second vehicle part. There is provided a reinforcement part which supports the adjusting gear unit with respect to the first vehicle part in the longitudinal direction of the spindle such that due to the reinforcement part with forces introduced in the longitudinal direction from the first vehicle part into the adjusting gear unit the adjusting gear unit is supported with respect to the first vehicle part with a higher rigidity than with forces introduced against the longitudinal direction.

Abstract: A spring unit including a zigzag spring 40A, 40B; a first sliding unit 20A including a first spring securing part 22 securing a first end of the spring, a first spring accommodating part 28A, 28B accommodating the spring; first slide guiding parts 25 on both sides of the first sliding unit; a second sliding unit 30A including a second spring securing part 32 securing a second end of the spring, a second spring accommodating part 36A, 36B accommodating the spring, second slide guiding parts 35 on both sides of the second sliding unit, wherein the first and second slide guiding parts 20A and 30A are engaged to mutually slide, and the spring 40A, 40B is held inside a space formed between the first and second spring accommodating parts 28A, 28B, 36A, and 36B while the first and second slide guiding parts 25 and 35 are engaged.

Abstract: At least a motor, a gear unit and an adjustment connection form an actuator. The gear unit is fitted with at least two mutually movable gear parts, as well as a spring acting on two of these that counteracts their movement out of an idle state. The gear unit is designed such that when an adjustment connection is blocked the motor moves the gear parts out of the idle state during operation to an operating point. In addition, the gear unit is designed such that during the movement out of the idle state it reduces the extent to which the movement is counteracted from a particular point upstream of the operating point.

Abstract: A ball screw is provided in which an outer circumferential formation is formed at a portion facing a ball circulating passage out of outer circumferential surface of a nut. The ball screw includes: a screw shaft having on its outer circumferential surface a screw groove; a nut having on its inner circumferential surface a screw groove facing the screw groove; a plurality of balls rollably loaded in a spiral ball rolling passage formed by both screw grooves; and a ball circulating passage to return the balls from a start point to an end point of the ball rolling passage for recirculation. The ball circulating passage is a concaved groove formed by concaving a groove on a part of the cylindrical inner circumferential surface of the nut by plastic working. Then, a flange is integrally provided at a portion facing the ball circulating passage and the screw groove.

Abstract: As to a distance in a radial direction of a rotation shaft from a rim at the hub side to an outer peripheral side face, the outer peripheral side face includes a first side region having a distance located at the most leading end side spot in the direction of rotation of a helical gear longer than a distance at a tail end side spot.

Abstract: A hydraulic system for actuating an interlocking shifting element of a transmission which comprises two piston chambers and a piston element that delimits the piston chambers. The piston element can be acted upon in one piston chamber by a pressure to open the shifting element and, in the other piston chamber, by another pressure to close the shifting element. Pressure can be delivered by a valve to two piston chamber and the valve can be actuated by an actuator by a pilot pressure. The valve and the electro-hydraulic actuator are designed and functionally connected to one another such that, in the event of a pressure drop, a total hydraulic force, acting to close the shifting element, is applied to the piston element and, if the current supply to the actuator fails, a total hydraulic force acting, in the opening direction of the shifting element, acts upon the piston element.

Abstract: A derailleur for an electric bicycle is composed of a control unit, a gearshift drive unit, and a gearshift cable connected with the gearshift drive unit and the control unit. The gearshift traction (F1) required by the gearshift controller, the output torsion (T) of the gearshift drive unit, the radius (R) of the reel, and a bend radius of the gearshift cable, and the bend radius r of the gearshift cable satisfy the formula r?R?(T/F1). In this way, when the gearshift drive unit can drive the control unit for gearshift, figure out the minimum bend radius of the gearshift cable, so that the need for electricity can be reduced and the applicable electric motor can be adopted to enable the derailleur to be lightweight.

Abstract: A speed reducer includes a ring gear having internal gear teeth, a revolving gear meshing with the ring gear, an eccentric cam relatively rotatably provided in a center of the revolving gear, a first rotating shaft in the eccentric cam, the first rotating shaft driving the revolving gear by rotating the eccentric cam, a through pin inserted into a through hole in the revolving gear, a second rotating shaft connected to the through pin and outputting rotation obtained by the rotation of the revolving gear, and an elastic section between the through hole and the through pin, the elastic section having a greater area of contact with the through pin than with the through hole.

Abstract: It might happen that an inner column 3 is released from telescopic clamping and tilt clamping by an outer column 4 in a state before a vehicle fitting bracket 2 is fitted to a vehicle body. When a male steering shaft 6 is to escape from a female steering shaft 5, a come-out preventive member 7 is intruded into an inner peripheral annular groove 52 vicinal to an end portion of a female spline 51 on the front side with respect to the vehicle body. Then, the come-out preventive member 7 abuts on a shoulder portion 521 of the end portion, on the front side with respect to the vehicle body, of the inner peripheral annular groove 52, thereby surely enabling the male steering shaft 6 from escaping out of the female steering shaft 5.

Abstract: An accelerator pedal device provided with a driving control device. The driving control device generates a braking force for braking a vehicle when the operation quantity of an acceleration pedal is below a first threshold value, and generates a driving force for driving the vehicle when the operation quantity exceeds a second threshold value larger than the first threshold value. The driving control device does not generate either the driving force or the braking force, and allows the vehicle to drive inertially, when the operation quantity ranges from the first threshold value to the second threshold value.

Abstract: A damping device includes a base and an arm. The base includes a base board and a cantilever located on the base board. The arm is pivotably mounted to the base board about a pivot axis. The arm is rotatable from a first position to a second position. The cantilever is urged and is resiliently deformed away from the pivot axis. A distance between the pivot axis and a contact surface, which is between the arm and the cantilever at the first position is smaller than that in the second position.

Abstract: A fire control switch for a firearm includes a lever assembly mounted to a first end or to a second end of a shaft. The lever assembly includes a spring-loaded rotatable pawl moveable between a first position and a second position, wherein the lever assembly is mounted to the shaft when the pawl is in the first position and can be released from the shaft by moving the pawl from the first position to the second position. In other embodiments, a second lever assembly or cap may be mounted to the other end of the shaft.

Abstract: A steering wheel for a motor vehicle, with a steering wheel base body and a jacket that comprises at least one strip surrounding the steering wheel base body on the outer circumference. A first free end of the at least one strip is held in position securely in a groove formed in the steering wheel base body. A second free end of the at least one strip is also held in position securely in a groove formed in the base body of the steering wheel. In addition, the invention concerns a process for the production of such a steering wheel.

Abstract: A method for producing a fracture-divided component, in particular a connecting rod, with an at least partially coated bore includes the steps of: providing an unfinished component; applying a coating of a bearing material to a bore surface; and working the coating, in order to compensate internal tensile stresses in the coating, before fracture division of the component. Alternatively, the method for producing a fracture-divided component, in particular a connecting rod, having an at least partially coated bore includes the steps of: providing an unfinished component; applying a coating of a bearing material to a bore surface before fracture division of the component; and forming a counter-hardness zone before the application of the coating in order to generate compressive stresses which oppose the internal tensile stresses of the coating.

Abstract: A differential case assembly includes a differential case and an integral end cap and ring gear assembly. The differential case has an open end and a side wall with an exterior surface. The integral end cap and ring gear assembly is disposed over the open end of the differential case and adjacent the exterior surface. A first interior portion of the integral end cap and ring gear assembly abuts the exterior surface of the differential case to define a weld joint interface. The integral end cap and ring gear assembly is configured to permit a welding operation at the weld joint interface.

Abstract: A hybrid drive train for a motor vehicle, having an internal combustion engine for making available internal-combustion-engine drive power. A multi-step transmission has a transmission input and a transmission output. The transmission input can be connected to the internal combustion engine. The multi-step transmission is designed to set up a multiplicity of different forward gear ratios. An electric machine makes available electromotive driver power. The multi-step transmission is a range-change transmission having a first transmission group and a downstream second transmission group. The electric machine is connected to the input of the second transmission group.

Abstract: This invention relates to powder metallurgy, more specifically, to composite material production methods, and can be used for the production of copper base binders for diamond tools used in the construction industry and stone working. The copper binder comprises the following components (wt. %): Copper (30-60), iron (20-35), cobalt (10-15), tin (0-10.5), tungsten carbide (0-20) and an alloying addition. According to the first variant the alloying addition is a nanopowder having a specific surface area 6-25 m2/g, which is present in an amount of 1-15% wt. According to the second variant the alloying addition is a nanopowder having a specific surface area of 75-150 m2/g, which is present in an amount of 0.01-5% wt. The binder possesses a high wear resistance without the essential increase in the required sintering temperature, as well as high hardness, strength and impact toughness.

Abstract: A clayish composition for forming a sintered silver alloy body capable of forming a sintered silver alloy body, which is not easily discolored even in the atmosphere and has excellent tensile strength, flexural strength, surface hardness (hereinafter, sometimes collectively referred to as ‘mechanical strength’), elongation or the like, powder for the clayish composition for forming a sintered silver alloy body, a method for manufacturing the clayish composition for forming a sintered silver alloy body, a sintered silver alloy body and a method for manufacturing the sintered silver alloy body.

Abstract: A system and method for producing atomized powder for glassy aluminum-based alloys in an inert gas atmosphere. A melt chamber melts the alloy and it is atomized to form powder. The powder is deposited in at least one catch tank.

Abstract: The present relates to a method and a device for producing a radionuclide in which an absorption column containing the radionuclide is eluted by means of an eluent in a first flow direction and subsequently in a second, opposite flow direction.

Abstract: A hearth furnace for producing direct reduced iron is described. The furnace has first and second combustion chambers, each having a rotating hearth within it to receive iron oxide and reducing agent. A set of rabbles disposed over each of the rotating hearths interacts with the iron oxide and pushes the iron oxide towards an inside or an outside edge of each rotating hearth. The first combustion chamber having an outlet connected to an inlet of the second combustion chamber to receive materials pushed by the rabbles of the first combustion chamber to the first combustion chamber outlet. The furnace further comprising one or more gas transfer channels for transferring reduction gasses and heat between the second and first combustion chambers.

Abstract: A method of alloying an iron majority compound with an oxide is provided. The method may include: heating the iron majority compound to a molten state; adding an oxide containing manganese to the molten iron majority compound; adding slag forming materials and reducers to the molten iron majority compound; controlling the iron majority compound to achieve a desired temperature environment for a desired period of time; and removing slag from the iron majority compound.

Abstract: The invention relates to a preparation method for stainless steel slags and modified steelworks slags for recovery of metal. In order to create a dry preparation method which guarantees a low wear and energy efficient comminution and de-agglomeration of stainless steel slags and modified steelworks slags as well as a selective separation of a metal fraction and a silicate fraction and which can be variable in relation to the different slag compositions and different requirements upon the quality of the metal fraction and the at least one silicate fraction, a roller mill is used at least for the comminution. The slags are supplied with a feed grain size of up to approximately 150 mm. The use of an air swept roller mill is advantageous, in which the comminution and de-agglomeration, if necessary drying, and at the same time a separation into an extensively mineral-free metal fraction and a virtually metal-free silicate fraction are brought together.

Abstract: A bit for removing a broken security fastener having an elongated shaft with a longitudinal axis. The shaft has a first end and a second end. The first end terminates in a tip region having a recess for receipt of the post of the security fastener, the recess being disposed substantially along the longitudinal axis. The second end of the shaft is configured to be received by the chuck of a tool which provides rotational torque.

Abstract: A foldable hand tool has a handle and a tool's driving head. The tool is mainly characterized by that, the handle is provided with a driving head guide groove, which is extended along the handle and set correspondingly with the handle's long guide hole. The driving head guide groove penetrates one side of the handle. A combined lug is protruded from the assembly end of the tool's driving head, and fitted slidably with the driving head guide groove of the handle. When the tool's driving head swings perpendicular to the handle, it can slide along the driving head guide groove. With the arrangement of said driving head guide groove, the hand tool can be configured into a straight or T-shaped pattern, thus improving the ease-of-operation and flexibility to meet the customer demands with higher applicability.

Abstract: In general, the invention is a wrench made of a heavy and rust-resistant steel, which is 7-gauge in a preferred embodiment, as well as zinc coated in a primary embodiment, formed to one of the water filter sizes, including but not limited to: SW1, SW2, SW3, SW5-a, 144880 BW-BC, C-shaped (open end) Universal style, S3072, HT-HTF, OW1, OW2, OW6. The handle is at least 1.5 times the head diameter for easy use and the head is fitted with the various water filter sizes. A plastic or rubber cover is used on the handle for grip and for installing directions.

Abstract: An open end wrench having a shank with a smooth planar side, the length of the shank, that functions as a torqueing jaw of opposed wrench heads formed at opposite ends of said shank. The opposing wrench heads are each defined by two jaws, one of which is the smooth planar surface of the shank, and an arcuate throat interconnecting the jaws.

Abstract: An angularly accessible head assembly for a torque hand tool includes a drive shank and a head rotatably disposed on a coupling shell about drive and driven axes that intersect with each other by an angle of at least 90 degrees. First, second and third force transmitting members are disposed to couple the drive shank and the head by means of four joint subassemblies, each having a socket wall surface and an orientable portion matingly engaged with each other. A torque exerted upon the drive shank is transmitted to the head through the force transmitting members and the joint subassemblies so as to activate a rotational movement of a threaded connector.

Abstract: A machining device includes a support platform, a machining assembly, a clamping assembly, a driving assembly, and a controlling assembly. The support platform includes a first supporting member, a sliding rail mounted on the first supporting member, and a second supporting member mounted on the sliding rail. The machining assembly mounted on the second supporting member includes a machining tool. The clamping assembly is mounted on the first supporting member, for clamping and rotating the workpiece. The driving assembly is fixed to the second supporting member. The controlling assembly includes a connecting member mounted on the second supporting member and a resisting member mounted on the connecting member. The driving member drives the second supporting member to slide along the sliding rail, to make a gradual and increasing depth of contact by the machining tool on the workpiece, until a preset limit is reached.