Abstract: A method of removing voids from a casting is disclosed including the steps of introducing molten metal into a die, providing an impact surface and dropping the die containing the molten metal at least once from a predetermined height to strike the impact surface. A device for removing voids from a casting includes a base, a drive means operably coupled to at least one cam, and a guide configured to receive a die, wherein the at least one cam is positioned on the base to contact a die placed on the guide, and wherein rotation of the at least one cam is operable to raise and subsequently release the die to strike a surface of the base, and wherein the guide maintains the die in a stable orientation relative to a horizontal axis of the base.

Abstract: An example thermal sink system includes a quench plate having an upper surface for receiving a mold assembly to be cooled. A thermal fluid is in thermal communication with the mold assembly via conduction through the quench plate. The quench plate prevents the thermal fluid from contacting the mold assembly.

Abstract: The present invention is directed to a molten metal transfer system. The system includes a pump having interchangeable low flow and high flow impellers and selective low flow and high flow transfer troughs.

Abstract: It is an object of the present invention to provide an alloy powder that has high hardness and high corrosion resistance and can be produced from inexpensive raw materials, as well as to provide a shot material for shot peening, a powder metallurgical composition, and an iron-based sintered alloy using the alloy powder, and, in order to achieve such an object, there are provided an alloy powder including, in mass %, C: 0.6% or more and 2.4% or less, Cr: 36% or more and 60% or less, Mn: 0.1% or more and 10% or less, Mo: 0% or more and 10% or less, Si: 0% or more and less than 2%, Ni: 0% or more and 15% or less, Co: 0% or more and 5% or less, W: 0% or more and 5% or less, V: 0% or more and 5% or less, Nb: 0% or more and 5% or less, and the balance of Fe and unavoidable impurities, as well as the shot material for shot peening, the powder metallurgical composition, and the iron-based sintered alloy using the alloy powder.

Abstract: A copper particle dispersing solution obtained by dispersing fine copper particles having an average particle diameter of 1 to 100 nm, each of the fine copper particles being coated with an azole compound, such as benzotriazole, and coarse copper particles having an average particle diameter of 0.3 to 20 ?m in a dispersing medium, such as ethylene glycol, so as to cause the total amount of the fine copper particles and coarse copper particles to be 50 to 90% by weight and so as to cause the ratio of the weight of the fine copper particles to the weight of the coarse copper particles to be in the range of from 1:9 to 5:5, is applied on a substrate by screen printing or flexographic printing to be preliminary-fired with vacuum drying, and then, fired with light irradiation by irradiating light having a wavelength of 200 to 800 nm at a pulse period of 100 to 3000 ?m and a pulse voltage of 1600 to 3600 V, to form a conductive film on the substrate.

Abstract: Provided are metal nanowires having a high total light transmittivity that efficiently inhibit scattering of external light at a display screen such as a touch panel, and improve black floating prevention (photopic contrast) and electrode pattern non-visibility. Also provided are a transparent conductive film including the metal nanowires, a method for producing the transparent conductive film, a dispersion liquid including the metal nanowires, an information input device including the transparent conductive film, and an electronic device including the transparent conductive film. The metal nanowires include metal nanowire bodies and a colored compound adsorbed onto the metal nanowire bodies. The colored compound is a dye and is adsorbed in an amount of from 0.5 mass % to 10 mass % relative to the metal nanowire bodies.

Abstract: A method of forming a component includes defining an identification pattern, defining one or more scanning parameters and/or one or more heating parameters, depositing a sinterable material on a substrate and scanning a heat source of the deposited sinterable material to thereby selectively sinter the material to the substrate to produce a sintered layer having the identification pattern. The sintered layer includes first and second regions, and the method includes sintering the first region using one or more scanning parameters and/or one or more heating parameters having a first value, and sintering the second region using one or more scanning parameters and/or one or more heating parameters having a second value to thereby produce the identification pattern including a contrast between the first and second regions.

Abstract: Described herein is a method for making a metal matrix composite material comprising: (a) forming a metal box comprising a bottom forming plate having a length and a width, a first pair of side forming plates having a length and a height, and a second pair of side forming plates having a width and a height; (b) mixing a metal powder and a ceramic powder to prepare a mixed powder; (c) filling the metal box with the mixed powder; (d) compacting the mixed powder in the metal box to provide the metal box comprising a compacted powder preform; (e) disposing a top forming plate onto the metal box in solid abutment against the metal box comprising the compacted powder preform and sealing around its edges to produce a pre-rolling assembly; and (f) performing hot working on the pre-rolling assembly to obtain the metal matrix composite material with a metal cladding.

Abstract: An arrangement for applying metal nanoparticles onto a wafer or another substrate, is characterized by a metal or semiconductor part arranged in a liquid reservoir, laser or particle emitter for removing nanoparticles from the metal or semiconductor part in the liquid inside the liquid reservoir, and means for applying the removed metal particle containing liquid onto the substrate.

Abstract: A method of forming monodispersed metal nanowires comprising: forming a reaction mixture including a metal salt, a capping agent and a ionic additive in a reducing solvent at a first temperature; and forming metal nanowires by reducing the metal salt in the reaction mixture.

Abstract: The invention discloses an improved wheel alignment device which comprises a rack, a cylinder, a servo motor, a hollow shaft and the like.

Abstract: A drill chuck assembly. The drill chuck assembly includes a rapid change mechanism configured to retain a drill bit shank inserted therein. The drill chuck assembly includes a body having a bore with a trilobe cross-section that is configured to receive a triangular and hexagonally shaped drill bit shank, interchangeably. The bore includes a slot positioned in each lobe that slidably contains a detent ball therein. A collar is affixed annularly around the body and defines a channel extending around the body. A sleeve is slidably mounted around the body. The sleeve includes a tapered end that is slidably disposed within the channel and has circular apertures that are in communication with the slots of the bore for reception of the detent balls. The sleeve is spring biased towards the collar, which forces the detent balls against an angular wall within the channel.

Abstract: A drill includes a shank and a body having an outer peripheral surface with a certain outer diameter and a distal end tapered surface of a certain distal end angle. The drill includes a pilot shaft portion projecting from the distal end tapered surface of the body and having a diameter smaller than the body and having an outer peripheral surface of a certain outer diameter. The drill further includes an odd number of twisted grooves extending from the outer peripheral surface of the body to the outer peripheral surface of the pilot shaft portion at a certain twisted angle, an odd number of main cutting edges formed on the distal end tapered surface of the body by forming of the twisted grooves, and an odd number of auxiliary cutting edges formed on the distal end tapered surface of the pilot shaft portion by forming of the twisted grooves.

Abstract: A fabrication system is disclosed for use in a key making machine. The fabrication system may have a housing with a slot configured to receive a key blank, and a receiving unit configured to accept a shank of the key blank at the slot. The receiving unit may be configured to mechanically align the shank as it is inserted by a user. The fabrication system may also have a clamp movable between an open position and a closed position, and an actuator. The actuator may be configured to move the receiving unit and the key blank to the clamp, and to move the receiving unit away from the key blank after the clamp has moved to the closed position.

Abstract: A key cutting machine is provided for cutting a key blank from a master key. The key cutting machine comprises a first cutting member that rotates about a substantially horizontal axis for cutting a key pattern on a key blank and a second cutting member that rotates about a substantially vertical axis for cutting a key pattern on a key blank. Additional improvements or features of a key cutting machine are also described.

Abstract: Elevation and blade tilt mechanisms for table saws are disclosed. The elevation and tilt mechanisms may include an indexable position adjustment system configured to adjust the position of the blade relative to the table in discrete increments. Such table saws may also include a trunnion assembly with an elevation carriage slideably mounted to front and rear brackets, the brackets being tiltable with the elevation carriage relative to the table, and the elevation carriage being adapted to maintain the tilt of each bracket relative to the other bracket in a fixed orientation.

Abstract: Disclosed is an extension platform for securement to a conventional table saw that allows for the accurate cutting of larger workpieces. The extension platform is formed from a support wall with a resistant free, height adjustable, material rest to allow movement of an oversize workpiece without marring the workpiece. The extension platform is secured to the table saw by a rail that fits through a guide mounted on the table saw and used for support of an alignment fence. The support platform can be stored adjacent to the table saw without interfering with the table saw operation and easily deployable by use of casters wherein an extension rail can be locked to the guide to prevent movement of the extension platform.

Abstract: A feed sensor detects location of a wood log to be moved with a feed mechanism in relation to a predetermined point in a device. A control circuit controls a feed mechanism to feed the log for a preset length on the basis of the location of the log detected by the feed sensor. The control circuit controls the cutting mechanism to cut a wood block from a log longer than the predetermined length when the feed mechanism has fed the log for the preset length and a splitting mechanism to split the wood block cut from the log.

Abstract: A circular saw blade indexing assembly includes a base and a circular saw blade mounting assembly connected to the base and having a saw hub configured to support a circular saw blade. The circular saw blade indexing assembly includes an indexing mechanism connected to the base and having a feed finger disposed at a radial distance from the saw hub, the feed finger configured to rotate the circular saw blade about the saw hub between a first arc position and a second arc position. The circular saw blade indexing assembly includes a radius adjustment mechanism configured to adjust a relative longitudinal position between the saw hub of the circular saw blade mounting assembly and the feed finger of the indexing mechanism.

Abstract: A numerical controller for controlling a wire electrical discharge machine generates section data such that a machining path commanded by a machining program is divided into sections with a sufficient distance, generates data such that the individual sections are re-approximated to a straight line or a circular arc based on the generated section data, and adjusts an operation of the wire electrical discharge machine at a corner portion and a circular-arc portion of the machining path, based on the re-approximation section data.

Abstract: Systems and methods for controlled and precise EDM manufacturing of a component are disclosed.

Abstract: A method for electroerosion machining includes providing an electrode assembly comprising an electrode body having a tube-shaped body that defines a hollow interior and one or more inserts affixed to the electrode body to form a cutting surface on the electrode assembly, positioning the electrode assembly adjacent a workpiece to be machined, and providing power to the electrode assembly so as to energize the electrode assembly, with the electrode assembly and the workpiece being at opposite electrical polarities. The method also includes advancing the electrode assembly through the workpiece, with a working gap being maintained between the inserts and the workpiece across which a pulse electric current is passed to remove material from the workpiece, wherein, upon advancing the electrode assembly through the workpiece, a core is formed that is completely separated from a remainder of the workpiece and is contained within the hollow interior of the electrode body.

Abstract: An electroerosion machining system for trepanning and drilling operations is disclosed. The electroerosion machining system includes an electrode assembly configured to machine a desired configuration in a workpiece, a power supply configured to energize the electrode assembly and the workpiece to opposite electrical polarities, an electrolyte supply configured to pass an electrolyte between the electrode assembly and the workpiece, a working apparatus configured to move the electrode assembly relative to the workpiece, and a control system to control the power supply and the working apparatus. The electrode assembly further includes an electrode body in the form of a tube-shaped body, the tube-shaped body defining a hollow interior and one or more replaceable inserts affixed to the electrode body at a working end thereof positioned adjacent the workpiece, the one or more replaceable inserts constructed so as to be selectively attachable and detachable from the working end of the electrode body.

Abstract: A device is specified, said device comprising a first component (1), a second component (2), and a connecting component (3) comprising at least a first region (31) and at least a second region (32). The composition of the first region (31) differs from the composition of the second region (32). The connecting component (3) is arranged between the first component (1) and the second component (2). The connecting component (3) comprises different kinds of metals, the first region (31) of the connecting component (3) comprises a first metal (41), and the concentration of the first metal (41) is greater in the first region (31) than the concentration of the first metal (41) in the second region (32).

Abstract: A laser soldering system is disclosed. The laser soldering system has a moving system, a gripper mounted on the moving system, a presser mounted on the moving system and having a transparent member, and a laser. The gripper grips an object and places the object at a target location on a product to be soldered. The transparent member presses the object against the product. The laser emits a laser beam through the transparent member to solder the object to the target location while the object is pressed against the product.

Abstract: An electric arc welder and a method for performing a pulse welding process producing reduced spatter. The welder produces a current between an advancing electrode and a workpiece. The welder includes a short-detecting capability for detecting a short condition upon occurrence of a short circuit between the advancing electrode and the workpiece. The welder may also include a switching module in the welding circuit path of the welder having an electrical switch and a resistive path. Times of occurrence of short intervals can be tracked and a blanking signal can be generated based on the tracked short intervals to anticipate a next short interval in a next pulse period of the pulsed welding process. The blanking signal can be used to reduce a welding current in the welding circuit path by introducing additional resistance into the welding circuit path via the switching module, for example.

Abstract: A method of welding two adjacent components together includes determining geometrical dimensions of the components to be welded and determining material properties of the components to be welded. The method includes selecting an optimised weld torch velocity and voltage by selecting an iteration parameter of weld torch velocity and voltage, and calculating an expected heat flux distribution that will be generated in components during a welding process as a function of the geometrical dimensions of the components and the material properties of the components. The heat flux distribution is constrained to be ellipsoidal in an initial weld region and conical in the remainder of the weld. The method includes iterating using the iteration parameter until an optimised weld torch velocity and voltage is obtained. The welding torch is then set to weld the components at the determined optimum velocity and voltage.

Abstract: A welding system including an arc monitoring, training, and control system is disclosed. The welding system includes a power supply, controller, and associated memory. When a weld is performed, the weld command and weld feedback parameters can be stored in the memory, along with associated alarm limit values. During subsequent welds, the input weld commands and actual feedback values can be compared to the established limits, and a fault signal provided to an operator or supervisor when the value exceeds the established limits. The fault signals can be used for training operators, as well as providing monitoring signals, and can be stored with weld data in a database for later analysis. In addition, collected weld data can be used to determine when to clean, repair, or replace consumables, including, for example, contact tips, wire drive liners, and drive rolls, and to monitor usage of wire and gas.

Abstract: Welding systems including welding torch assemblies are provided. The welding torch assembly may include a welding torch adapted to be utilized in a welding operation to establish a welding arc between the welding torch and a workpiece. Shielding gas may be supplied to the welding torch for establishment of a gas shielding area around a weld pool. The welding torch assembly may also include a temperature sensing system having a non-contact temperature sensor coupled to the welding torch and adapted to sense a temperature of the workpiece at a location outside of the molten weld pool.

Abstract: The invention is a system and method for controlling welding of a welding unit in which a welding gun is operatively associated with a welding unit, and a microphone is associated with a receiver and a voltage controller is configured to adjust voltage based on vocal commands received by said receiver.

Abstract: An arc welding method preforms reciprocating wire feed so as to alternately perform forward feed and reverse feed. The arc welding method includes a normal arc welding step, a normal short circuit welding step, and an abnormal arc welding step. In the abnormal arc welding step, a short circuit state occurs at a second time point, which is before a lapse of a second period from a first time point at which an arc state occurs. Further, in the abnormal arc welding step, the reciprocating wire feed continues until a third time point after a lapse of a first period from the second time point. At the third time point, the reciprocating wire feed is stopped and the abnormal arc welding step is completed. From the third time point, the welding wire is decelerated and the reciprocating wire feed is restarted.

Abstract: A method of resistance spot welding workpiece stack-ups of different combinations of steel workpieces and aluminum workpieces includes several steps. In one step, a workpiece stack-up is brought between a first weld gun arm and a second weld gun arm. The first weld gun arm includes a first welding electrode, and the second weld gun arm includes a carrier that supports a second welding electrode and a third welding electrode. Another step involves rotating the carrier and passing electrical current through the workpiece stack-up using the first welding electrode in conjunction with either the second welding electrode or the third welding electrode depending on which electrode has been rotated into facing alignment with the first welding electrode.

Abstract: An all-in-one jigless projection loading system for a vehicle is adapted to load and assemble a body component to a vehicle body. The all-in-one jigless projection loading system may include: a fixing bracket fixed to an arm of a robot; a position adjusting member rotatably mounted to the fixing bracket; a gripper mounted to the fixing bracket to be movable backward and forward, and gripping the body component; an array unit mounted to the position adjusting member, and arraying the body component; and a welding unit mounted to the fixing bracket, and projection-welding the body component to a vehicle body.

Abstract: The invention provides a method of joining dissimilar materials, such as aluminum to steel, by applying low pressure and heat to minimize distortion of the materials and the heat affected zone. The method includes applying current to a weld element, at least partially melting a portion of the first material with the heated weld element, and passing through the at least partially melted portion of the first material with the weld element. The method further includes contacting the second material with the heated weld element, and melting a portion of the weld element and a portion of the second material in contact with one another to form a weld. The weld element is designed with a head to trap the first material between the head and the second material, and a vent for receiving the at least partially melted first material as the weld element passes through.

Abstract: A spot welding apparatus is provided that includes a fixation panel mounted on an arm of a robot. An upper welding gun is vertically installed on a front of the fixation panel, reciprocatesvertically through a pressing unit and moves horizontally toward the fixation panel. A left and right moving unitis installed between the fixation panel and the pressing unit to move the upper welding gun horizontally. Further, two or more lower welding guns are horizontally disposed to correspond to the upper welding gun, and an upper and lower moving unit are installed on the fixation panel to reciprocate the lower welding gun vertically.

Abstract: The invention relates to a device and a method for friction stir welding materials of different thicknesses and that have fillet welds, comprising the following features: a) a receiver panel (1) that has a drive head (2) and a welding shoe (4) that has a pin bearing, said welding shoe (4) being selected and inserted according to whether it is being used with materials of different thicknesses or with materials that have fillet welds, b) the longitudinal axis of the spindle bearing being at an incline of an angle between and 5 degrees relative to the vertical line; the transverse incline being 0 degrees for the fillet weld shoe (4), and c) when the welding pin (6) is exchanged, the length of the welding pin (6) being adjusted using an adjustment element (12) and the position of the counter-bearing of the welding pin (6) being adjusted using an adjustable pin stop (19) and, in the case of the pin stop (19), additionally secured by an adjustment screw (20).

Abstract: A method and a system for laser marking a substrate for irradiating an area of a substrate with energizing radiation generated by an energizing radiation source to make said irradiated area require less laser energy to be laser marked; and irradiating a portion of said area with marking radiation from a marking laser beam generated from a marking laser source to laser mark said portion of said area. The irradiations from the energizing radiation source and from the marking laser source are at least partly overlapping each other in space and time, and are implemented by moving both the energizing radiation and the marking laser beam towards various areas of the substrate and portions thereof, respectively, in a synchronized manner.

Abstract: A laser polishing method for a metal face seal is provided. The method includes determining, using a processor, a first smoothness level of a seal face surface of the metal face seal. The method includes applying, using the processor, a laser beam at a first angle to at least one peak on the seal face surface of the metal face seal, the first angle measured relative to a normal to the seal face surface. The method includes determining, using the processor, a second smoothness level of the seal face surface. The method includes controlling, using the processor, the laser beam until the second smoothness level is equal to a threshold smoothness level. The method includes turning off the laser beam, using the processor, when the second smoothness level is equal to the threshold smoothness level isotropically over the seal face surface.

Abstract: A laser cutting machine includes at least one galvo having a galvo field of view in which the galvo can cut a material moving with a speed past the galvo. A display in the machine provides an image of at least one pattern to be cut from a material, the pattern comprising of a plurality of objects with each object having a position on the material and each object comprising at least one cut. An optimizer in the machine receives the position on the material of each object of the pattern and assigns a start locations for each cut of each object and a trigger distance for each object to maximize the speed at which the material moves past the galvo while ensuring that each object is cut by the galvo at the object's respective position on the material.

Abstract: The invention relates to a interchangeable optics module for a laser processing machine as well as a laser processing machine including the optics module, wherein a beam guide is fixed to a support plate, and the beam guide includes a laser input coupling interface on one end that can be connected to a laser output coupling interface allocated to a laser source, and a processing head on the other end.

Abstract: A laser processing system and method for cutting individual parts from a continuous moving web of substrate material. The laser system is configured to cleanly cut individual parts from a moving web without severing or damaging a supporting conveyor belt by partially processing the substrate as the substrate passes over a first conveyor belt comprising a plurality of individual belts spaced apart across the width of the web. The laser is directed to process the substrate according to gaps in the apparatus below the substrate, that is the laser is configured to process the substrate along a path wherein the substrate is passed over air rather than a physical support or conveyor. The finishing of the singulation of the individual part is completed by laser processing the web as it passes over a gap between a first conveyor and a second conveyor system.

Abstract: A laser waveguide (22) with a tubular wall (24) that conducts laser energy (30) from a near end (23) to a far end (27) of the waveguide. A filler feed wire (36) slides through the hollow center of the waveguide. A laser emitter (40) delivers laser beam energy (30) to a first end of the waveguide within an acceptance angle A. The laser beam may be non-parallel to an axis (25) of the waveguide by at least 20 degrees to provide room for the laser emitter beside the feed wire. The near end of the waveguide may be flared (23C) to accept a laser beam at a greater angle from the axis. The beam exits the waveguide (32) with an annular energy distribution about the feed wire, and may be focused toward the feed wire by a lens (34) having an axial hole (37) for the wire.

Abstract: A laser cladding device for applying a coating to a part comprising a laser which can generate laser light, which is adapted to heat the coating and the part, a main body defining a laser light channel adapted to transmit the laser light to the part, a coating channel adapted to transmit the coating to the part, and a vacuum channel and a nozzle having an exit. The nozzle comprises a delivery port at one end of the laser light channel, a coating port at one end of the coating channel, and a vacuum port at one end of the vacuum channel, wherein the vacuum port is positioned generally adjacent the delivery port In operation the vacuum port draws a vacuum, pulling the coating towards the part.

Abstract: Disclosed is a superhigh strength gas shielded welding wire, the contents of chemical elements of the superhigh strength gas shielded welding wire in percentage by mass being: C 0.06-0.12%, Si 0.55-0.80%, Mn 1.60-1.95%, 0<Cu?0.20%, Cr 0.10-0.35%, Mo 0.10-0.50%, Ni 1.00-1.60%, Ti 0.01-0.20%, B 0.0005-0.0060%, and the balance being Fe and other inevitable impurities. Accordingly, further disclosed is a method for manufacturing the welding wire. The welding wire of the present invention has a low alloy content and a low carbon equivalent, and a weld metal formed by welding with the welding wire has all of a higher strength, a greater low-temperature toughness and a better plasticity, with a good compatibility between the three properties. The weld metal formed by welding using the welding wire further has a good crack resistance and a good welding property.

Abstract: In the flux applying device, a control portion controls conveying rollers or the like so that thickness of flux applied to solder is controlled. The winding roller rotates so that the solder is conveyed at the conveying speed. The drawing-out roller applies any load (back tension) to the solder backward along the conveying direction of the solder when drawing out the solder. The solder is conveyed at the predetermined speed and dipped into the flux tank containing flux. The solder is pulled up from the flux tank at the conveying speed vertically. By pulling up the solder from the flux tank at the constant conveying speed vertically, the interfacial tension acts on the solder 9a and the flux, so that the flux having a uniform thickness according to the conveying speed remains on the surface and back surface of the solder.

Abstract: A method for straightening, constraining, cutting and terminating a multi-stranded, non-parallel cable. The method includes: (1) dividing the cable into smaller components which are in the size range suitable for the prior art termination technology; (2) creating a termination on the end of each of the smaller components; (3) providing a collector which reassembles the individual terminations back into a single unit; and (4) maintaining alignment between the terminations and the smaller components while the terminations and the collector are in a connected state.

Abstract: Methods for assembling motor vehicle modules that include a shaft, a functional element, and a housing part are disclosed. The shaft may be arranged rotatably in bearing receptacles of the housing part, and the functional element may be fastened by a hub opening on a thickened portion of the shaft. The functional element may first be inserted into the housing part, wherein the shaft can then be pushed in by way of a temperature difference. During the pushing-in of the shaft, the functional element may not yet be in its final axial position and may not yet have its final orientation with respect to the angle of rotation, wherein the positionally correct positioning of the functional element may subsequently take place by way of press compaction. Before the shaft is inserted into the housing part, at least one of the bearing receptacles may be formed in such a manner that a rolling bearing is inserted, in particular pressed, in a receiving opening of the housing part.

Abstract: A clamping device for manufacturing an assembled camshaft for valve-controlled internal combustion engines, in which at least one cam disc with a base circle region and cam region is machined on the running surface and has a cam-disc recess, includes shrinking the cam disc onto a corresponding shaft designed with a defined dimensional overlap by cooling the shaft and heating the cam disc. Before being shrunk onto the shaft, the at least one cam disc is clamped by the clamping device such that a tension force acts on the recess wall region, the tension force corresponding to a predetermined extent to the state of stresses and/or deformation state of the recess wall region after the operation of shrinking the cam disc onto the corresponding shaft. The running-surface machining of the at least one cam disc occurs when the cam disc is clamped by the clamping device.

Abstract: The present invention provides a measurement apparatus for measuring a shape of an object to be measured, including a processing unit configured to obtain information on the shape of the object to be measured based on an image obtained by imaging the object to be measured onto which pattern light alternately including a bright portion and a dark portion along a first direction is projected, wherein the processing unit obtains a plurality of first signals different from each other and indicating a light intensity distribution in a second direction intersecting the first direction, from a region of the image, which corresponds to the dark portion.

Abstract: The invention provides a subsea torque tool (10) for a subsea vehicle system (such as an ROV), a drive head selection mechanism (30), and a method of use. The tool comprises a tool housing and a plurality of torque drive heads (22, 24, 26). The drive mechanism (17, 18, 20, 28) is operable to rotate the plurality of torque drive heads, and the drive head selection mechanism is used to select a drive head to impart a torque to a subsea device. The drive head selection mechanism comprises a rotary actuator (14, 32), and rotation of the rotary actuator effects axial movement of at least one of the plurality of drive heads between an operative position and an inoperative position. In another aspect, the drive head selection mechanism comprises an actuator operable from the exterior of the torque tool. In a preferred embodiment, the drive heads are sockets (22, 24, 26), and the selection mechanism comprises a rotary actuator and a cam mechanism.