Abstract: A heat exchanger (1) contains: a bundle of at least two heat exchanger tubes (3), a heat exchanger housing (5) surrounding the bundle of heat exchanger tubes (3), wherein a liquid heat-transfer medium (7) is passed around the bundle of heat exchanger tubes (3) in the heat exchanger housing (5), a heat exchanger cap (9) sealing the top of the heat exchanger housing (5), a heat exchanger bottom (11) sealing the bottom of the heat exchanger housing (5), a feed point (13) for the heat-transfer medium (7), an outlet (15) for the heat-transfer medium (7), an emergency relief port (17) disposed in proximity to the heat exchanger cap (9). The heat exchanger (1) contains a safety device (19) disposed in proximity to the heat exchanger bottom (11).

Abstract: Provided are a supercooler and an air conditioner including the same. The supercooler disposed between a condenser and an evaporator of an air conditioner to supercool a refrigerant condensed in the condenser, thereby allowing the supercooled refrigerant to flow into the evaporator includes an inner tube in which a first refrigerant passing through the condenser flows, an outer tube having an inner space in which the inner tube is disposed, the outer tube allowing a second refrigerant heat-exchanged with the first refrigerant to flow by using the inner tube as a boundary, and a baffle supporting the inner tube to prevent the inner tube from being shaken within the outer tube.

Abstract: A refrigerant heat dissipation apparatus has an evaporator, a condenser having a first condensing tube and a second condensing tube, a first refrigerant tube, two second refrigerant tubes, and a refrigerant. The first refrigerant tube is connected between the top of the evaporator and an upper part of a first condensing tube. The second refrigerant tubes are respectively connected with a lower part of the first condensing tube and a lower part of the second condensing tube, so as to form a multi-flow closed-loop cycle. The refrigerant is filled into the multi-flow closed-loop cycle. The controlling of cycling direction of the refrigerant achieves the efficiency in heat dissipating of the refrigerant heat dissipation apparatus.

Abstract: A heat sink assembly includes a base block having a straight mounting groove on the middle and two U-shaped mounting grooves at two opposite lateral sides, cooling fins installed in the top wall of the base block, each cooling fin having multiple tight-fit mounting holes, a U-shaped heat pipe having a lower segment peripherally press-fitted into the straight mounting groove in flush with the bottom wall of the base block and an upper segment tightly inserted into one respective tight-fit mounting hole of each cooling fin, and two symmetrical, curved heat pipes with respective U-shaped lower segments thereof respectively and peripherally press-fitted into the U-shaped mounting grooves in flush with the bottom wall of the base block and respective upper segments thereof tightly inserted into respective tight-fit mounting holes of each cooling fin. Thus, heat can be drawn upwards from a heat source and evenly distributed through the cooling fins.

Abstract: A method for creating a sandwich panel heat pipe is disclosed. A three-dimensional ordered micro-truss core comprising a plurality of periodically disposed unit cells comprising an open-cellular microstructure and a free space defined by the open-cellular microstructure wherein the core comprises a vapor region and a liquid region separated by a mesh structure. A first face sheet and a second face sheet are stacked with the three-dimensional ordered micro-truss core to form a heat pipe assembly with the mesh structure in the three-dimensional ordered micro-truss core being planar and substantially parallel to the first face sheet and the second face sheet. The first and second face sheets are bonded to enclose the three-dimensional ordered micro-truss core wherein the free space of the three-dimensional ordered micro-truss core between the first and second face sheets is filled with a working fluid through an inlet and the inlet is sealed.

Abstract: A modular system for heat exchange between fluids includes a plurality of open elements that, by means of two end plates, are connected together. An open element is constituted of a folded and sealed sheet material that is arranged in a frame.

Abstract: The invention relates to a heat exchanger comprising a casing (2) inside which is housed, and fastened by brazing, a heat exchange assembly (3) comprising a stack of heat exchange plates, each plate (4) having at least one edge (14) for brazing to the casing (2). The heat exchanger is characterized by the fact that it includes means, called unfastening means (20, 21, 22, 23), designed to prevent the casing from being brazed to at least a portion of the edge (14) of at least one end plate (4E) of the stack (3). By virtue of the invention, the heat exchanger is more flexible and absorbs thermal stresses better.

Abstract: A composite heat spreader includes a first flexible graphite layer, a second flexible graphite layer, and a gas evolving layer positioned between the first flexible graphite layer and the second flexible graphite layer. The gas evolving layer is temperature sensitive and when a threshold temperature is reached, the thermal conductivity of the gas evolving layer is reduced by at least factor of five.

Abstract: A heat exchanger includes a stack of plates which form ducts. Each of the plates can have at least two openings which, in the plate stack, form at least one collecting duct and one distributor duct which connect the ducts in terms of flow. A base plate can be arranged on the plate stack and can have a seal for sealing off the heat exchanger and a flow deflector for manipulating flow through the heat exchanger. The seal and the flow deflector can form a common component.

Abstract: The disclosure describes a convertible lower receiver. The convertible lower receiver includes a first forward pivot assembly and a second forward pivot assembly. The first forward pivot assembly is associated with a first forward pivot receptacle that is designed to mate with a first type of upper receiver when a forward takedown pin is inserted through the first forward pivot receptacle and a forward lug of the first type of upper receiver. The second forward pivot assembly is associated with a second forward pivot receptacle that is designed to mate with a second type of upper receiver when the forward takedown pin is inserted through the second forward pivot receptacle and a forward lug of the second type of upper receiver.

Abstract: A self-contained magazine intended for a firearm, including a main housing configured to receive a plurality of cartridges and having an open upper end through which the cartridges are loaded and unloaded, a follower arranged relative to the main housing and able to slide in a longitudinal axial direction along the main housing, a spring urging the follower toward the upper end so as to push the cartridges toward the upper end, a secondary housing fixed and preferably removably relative to a substantially planar lower end of the main housing, and an indicator device arranged at least partially inside the secondary housing to indicate the number of cartridges contained in the main housing.

Abstract: Embodiments of a magazine for storing cartridges 30 for use with a firearm are disclosed. The magazine may include a stack divider 50 that creates at least two spaces for stacks of cartridges. The magazine may also include feed lips that have an entry point sized to allow the cartridges to be loaded with a single straight-in motion.

Abstract: A magazine loader include a main body, a rounds recess, and a magazine recess. A plurality of rounds are provided to the rounds recess and positionally maintained by a rounds recess bottom, first and second rounds recess ledges, and first and second rounds recess sides. With a magazine positioned within the magazine recess and the rounds within the rounds recess, as the rounds are slidably moved towards the magazine recess, pivot points of each round successively abuts a downwardly angled portion of the second rounds recess side and pivots to angle a second round end of each round towards the magazine and over another downwardly angled portion of the first rounds recess side, so that each round successively enters the magazine.

Abstract: Disclosed is a monitoring and trigger-locking a firearm.

Abstract: An internal firing pin safety mechanism for a pistol, for example an M1911 80-Series pistol, which is activated by the beaver tail, rather than the trigger. The mechanism's constituents are comprised of a beaver tail, which engages a beaver tail lever when gripped, which in turn engages a plunger lever. The plunger lever then pushes up a firing pin block that has a concave opening, which allows the firing pin to pass through and strike the pistol's chamber.

Abstract: A tunable muzzle compensator for a weapon such as a firearm that includes a tube that extends the barrel of the weapon by fitting over the muzzle or is directly integrated into the barrel. This center tube, or modified barrel includes one or more holes along its length. One or more removable sections that have gas exit ports at various predetermined angles fit over the center section. Removable sections can be rotated to either turn off top holes on the center tube or to choose different angles of gas discharge The total effect of all the removable sections represents a particular tuning for the weapon. The weapon can be very quickly tuned on the range or in the field to compensate for weight of the projectile, the charge, and the shooting style by simply replacing and/or reversing removable sections with sections that have different angles of discharge.

Abstract: An apparatus for supporting a firearm adjacent a window in a wall has an elongate member pivotably coupled to a pivot member, allowing pivoting about a first pivot axis generally perpendicular to a longitudinal length of the elongate member. At least one mounting element is configured for engaging the wall and is pivotably coupled to pivot member to allow pivoting of the pivot member and elongate member together relative to the mounting element about a second pivot axis generally perpendicular to the first pivot axis and to the longitudinal length. A stop selectively limits pivoting of the elongate member about one of the axes, and a firearm support is coupled to the elongate member. During use, one of the axes is generally horizontal and the stop is configured to constrain pivoting of the elongate member about the generally horizontal axis for defining an elevation angle of the elongate member.

Abstract: A crossbow de-tensioning apparatus includes, in an embodiment, a de-tensioning device configured to be coupled to a crossbow. The de-tensioning apparatus also includes at least one hook operatively coupled to the de-tensioning device. The at least one hook is configured to be hooked onto a bowstring of the crossbow.

Abstract: An archery equipment conveyance bag including a container member, having a closure cover provided upon its upper surface, and connected thereto by means of a zipper, or other connectors, the bag being separated by at least one or more dividers, formed of rigid polymer or related material, so that a plurality of bows may be located within the formed compartments within the bag, and in an alternative arrangement, include a series of aligned tubes for holding arrows within the bag during transit or storage. Various pouches or accessory compartments may be applied to the outer surface of the conveyance bag, even those that may be removable, for aid in the conveyance of the accessories used during archery performance. In addition, the conveyance bag may rest upon and connect with a dolly member, in order to facilitate the wheeled movement of the archery ladened conveyance bag to another location, during application and usage.

Abstract: A cocker mechanism for cocking a string of a crossbow is presented, the cocker mechanism comprising a rope, a pair of handles secured to respective ends of the rope and a pair of string connectors operatively secured by the rope between the pair of handles, the string connector comprising a body, a rope-connecting portion including a first bearing member rotatably secured to the body about a first axle and a first bearing member rotation axis thereof for supporting pressure and translational movements of the rope thereon, a string-connecting portion including a second bearing member rotatably secured to the body about a second axle and a second bearing member rotation axis thereof for supporting pressure and translational movements of the string of the crossbow when cocking the crossbow. A kit thereof and a method of use thereof are concurrently presented.

Abstract: A compressed air cannon includes a launch pipe and a gas tube. The launch pipe has a closed end and an open end. The gas tube is into the top of the launch pipe, where the gas tube has an outlet directed toward the closed end of the launch pipe.

Abstract: A firing mechanism of an airsoft gun includes, in combination a gun body; a sleeve in a rear portion of the gun body; a discharge tube in a front end of the sleeve; a retaining ring on the front end of the sleeve; at least one assembly, each including an air canister and a piercing member facing the air canister; a locking member put on a rear end of the sleeve and configured to rotate to cause the piercing member to pierce the air canister of each of the at least one assembly; and an electromagnetic valve configured to activate by pulling a trigger. In response to opening the electromagnetic valve, pressurized air from the assembly drives a pellet out of the gun body.

Abstract: An assembly is disclosed. The assembly includes a base portion and a selectively rotatable portion attached to the base portion. The base portion includes a first subassembly attached to a second subassembly. The first subassembly includes a housing that at least partially contains an actuator. The second subassembly includes a housing receiver that retains the housing. The selectively rotatable portion includes an indexing member attached to an implement carrier portion. The actuator of the base portion is selectively interfaced with the indexing member of the selectively rotatable portion in order to permit the selectively rotatable portion to be arranged relative the base portion in one of two orientations being a rotatably-locked orientation and a freely rotatable orientation.

Abstract: A secure storage system may provide secure, portable, and rapidly accessible storage for articles such as firearms. Such a system may have a shell with first and second shell members that can be closed to keep the articles secure, or opened to provide accessibility. A locking mechanism may be used to lock the shell in the closed configuration. The locking mechanism may be controlled by a wireless receiver that receives a signal to unlock the shell. The shell may have a signal-permeable layer that enables the signal to pass through the shell. The first and second shell members may have mounting features that enable articles within the shell to be secured to the shell in a variety of positions and/or orientations. The system may also include a location sensor that detects the location of the shell and notifies the user when the shell is outside an approved zone.

Abstract: An effector launch system includes a stowable effector launcher housing having a housing panel configured for coupling with a vehicle, and one or more receptacle brackets movably coupled with the housing panel. The one or more receptacle brackets include one or more effector launcher sockets. The launch system further includes one or more effector launchers. Each effector launcher includes an effector received within an adapter housing. The stowable effector launcher housing is movable between deployed and stowed configurations. In the deployed configuration the one or more receptacle brackets extend from the housing panel and the one or more effector launchers are received within the one or more effector launcher sockets. In the stowed configuration the one or more effector launchers are removed from the one or more effector launcher sockets and the one or more receptacle brackets are stowed along the housing panel.

Abstract: A target marking system includes a light source configured to emit a beam of thermal radiation and to impinge the beam onto a target. The system also includes a detector configured to collect radiation passing from the target to the detector along a path. The radiation passing from the target in response to impingement of the beam onto the target. The system further includes an optics assembly disposed optically upstream of the detector along the path. The optics assembly includes at least one of an afocal power changer, a camera objective, a catadioptric lens, and a zoom system configured to condition the radiation passing from the target to the detector.

Abstract: A sight includes an adjusting module, a collector ring, a first adjusting element, and an elastic element. The collector ring includes a connecting end connected to the adjusting module, a free end opposite to the connecting end, a periphery connecting the connecting end and the free end, and a notch formed on the periphery and connected to the free end. The first adjusting element includes a first end which abuts the periphery. The elastic element extends in a direction from the free end to the connecting end and abuts the periphery. The elastic element contacts the periphery in a position between the notch and the connecting end. The first end is configured to resist an elastic force exerted by the elastic element and move the collector ring.

Abstract: An archery scope includes a housing having a light receiving region arranged on an exterior surface of a cylindrical sight portion and at least one sight pin connected with the housing and arranged within the sight portion. At least one optical fiber extends through the sight pin and through the light receiving region to receive ambient light and deliver it to the end of the sight pin. The optical fiber is arranged on the exterior surface in a serpentine pattern to maximize the length of the fiber exposed to ambient light. A shield is rotatably connected with the housing sight portion for movement between open and closed positions to increase and decrease the amount of ambient light directed to the optical fiber, respectively, so that an archer can control the brightness of the sight pin.

Abstract: A sighting device for a bow which attaches to a release mechanism being used with said bow. The sighting device includes a sighting assembly, a positioning-and-orienting arm with multiple degrees of freedom, and a mounting clamp. The sighting assembly includes an annular plate, a sight eyepiece, and a telescoping support arm. The sight eyepiece is oriented normal to the annular plate and is positioned within a lateral boundary that is defined as an extension of an inner wall of the annular plate. The telescoping support arm is swivelably and adjacently connected to the annular plate and holds the sight eyepiece in place. A first end of the positioning-and-orienting arm is adjacently attached to the annular plate and a second of the positioning-and-orienting arm is attached to the mounting clamp. The mounting clamp is attached to the release mechanism, thus positioning the sighting assembly directly in front of the user's eye.

Abstract: A rangefinder system includes a bow that may launch an arrow. A range finder is provided and the range finder may determine a distance between the bow and a target. A mount is coupled to the bow such that the mount is directed forwardly from the bow. The range finger is coupled to the mount such that the mount directs the range finder forwardly with respect to the bow. A switch is coupled to the bow and the switch may be manipulated. The switch is electrically coupled to the range finder such that the switch turns the range finder on and off. A display is movably coupled to the bow and the display may be visible. The display is electrically coupled to the range finder and the display displays a distance between the range finder and the target.

Abstract: Implementations of an integrated optical sight mount are provided. In some implementations, the optical sight mount may be integrated into the frame of a handgun and used to position an optical sight over the slide thereof. In some implementations, the integrated optical sight mount may comprise a mounting platform that is supported by a first side wall and a second side wall, each of which extend from the frame of a handgun. In some implementations, the mounting platform is configured for an optical gun sight to be secured thereon. In some implementations, the mounting platform and the side walls define an opening therebetween configured (e.g., dimensioned) so that the slide assembly of the handgun is able to pass therethrough without interference.

Abstract: A tactical-gear rail-mounting system apparatus and method utilizing the Picatinny-rail standard, allowing precise aligned removable mounting of a variety of tactical gear such as telescopic sights, night vision devices, reflex sights, laser aiming modules, rangefinders, tactical lights, cameras, fore-grips, bipods, and bayonets, in field-interchangeable configurations, to small-arms rifles and pistols and to non-firearm tactical gear, by providing a greater amount of mounting area and a variety of mounting-surface orientations.

Abstract: A personal ballistic protection device incorporates multiple removable test coupons. Each of the test coupons are retained with the ballistic device during its use until each coupon is removed for test purposes. Each test coupon has a construction identical to the protective portions of the ballistic device and is removable and configured to allow for destructive testing. Sufficient coupons are provided with the ballistic protection device to allow for periodic testing over a predetermined useful life of the ballistic protection device. One embodiment of the device is a body armor vest.

Abstract: Armor systems are described. Armor systems include an armor that includes a container, in which the container includes a bottom, a top and sides and is enclosed, hollow spheres that are placed in a stack in the container, explosive that is wrapped around each of the hollow spheres in the container, in which the explosive-wrapped spheres substantially fill the container.

Abstract: An armor component having a plurality of ceramic elements, where each ceramic element is covered by a metal coating. Each metal coating covers the outer surface of only one ceramic element. The metal coating is configured to increase a dwell time for the armor component when the armor component is impacted by a projectile.

Abstract: A blast attenuating seat system for protecting a vehicle occupant from impulses generated by blasts from underneath the vehicle, and methods for manufacturing and using same. The blast attenuating seat system includes a post, a mounting body coupled to a portion of the post and a seat assembly movably coupled to the mounting body configured to move relative to the post and mounting body. The seat assembly includes a seat body having a seat support structure configured to support a plurality of seat cushions and a shock assembly coupling the seat body and mounting body and configured to compress and expand such that the seat assembly moves relative to the post and mounting body. The blast attenuating seat system thereby provides/enables improved protection for vehicle occupants that may be exposed to explosive blasts.

Abstract: A low-cost, reliable and easy to use kit for neutralizing surface exposed landmine and unexploded ordnance for humanitarian demining is based on a liquid fuel and a solid/soluble fuel. Both fuels are premeasured in separate, sealed containers. The addition of a small quantity of solid/soluble fuel into the liquid creates an explosive. The resulting mixture is capable of detonating with a standard No. 8 blasting cap. The solid/soluble fuel can be in the form of a powder, tablet, or its saturated solution in water. The solid/soluble fuel is hexamethylenetetramine. The liquid fuel, nitromethane, is provided in premeasured quantities. User is provided instructions for choosing the appropriate quantity of liquid fuel, the corresponding solid/soluble fuel required, the method of mixing, placement and detonation of the kits. Also disclosed is a simple wooden stand to hold the bottle of explosive in place. A special fuel, liquid 2-ethylhexylnitrate, is provided to desensitize the mixed and sensitized explosive.

Abstract: Long-lasting targets that can be repeatedly used (e.g., shot with a firearm) are disclosed. In some embodiments, the target includes a base that optionally has wheels, at least one post assembly comprising a bottom end connected to the base and a top end, and a target body connected to the at least one post assembly. Optionally, the target body is comprised of a polyurethane. Optionally, the target includes two post assemblies and the target has an expanded position for use and a collapsed position for storage. Methods of preparing targets using a mold are also described herein.

Abstract: The invention relates to a cartridge having a projectile, and a case which is mounted on the projectile from behind and which has a case mouth at the front end, wherein the projectile has a tip, and at the rear this tip merges into a circumferential front guide band which defines the outside diameter of the projectile, and directly adjoining this front guide band in the direction of the projectile base, a circumferential case mouth receiving space which extends in the axial direction of the projectile and in which the case mouth engages is situated in the projectile. In order to reduce the twistless freebore to a minimum and build up the gas pressure early during firing, it is proposed that an exposed portion of the case mouth receiving space extending in the axial direction of the projectile is situated between the front guide band and the case mouth; i.e., the case mouth does not completely fill the case mouth receiving space in the direction of the nose of the projectile.

Abstract: Various embodiments of projectiles are described. In one embodiment, a projectile includes a projectile core having a central recess formed therein, the central recess including a conical recess portion and a cylindrical recess portion. According to certain aspects, the projectile core may include a core base, and the central recess of the projectile core may extend from a leading circumferential rim of the projectile core to the core base along an axis of symmetry of the projectile core. The projectile core may further include projectile fingers each separated by a kerf, extending longitudinally from the core base to the leading circumferential rim, and extending radially apart from the axis of symmetry between an outer periphery of the central recess to an outer periphery surface of the core, and a nylon tip including a spherical nose, a conical taper portion, and a cylindrical anchor pin.

Abstract: A hyper-velocity impact sensor is configured to probe a mass of material consumed upon impact with an object. The probe can extract density and thickness characteristics of the impacted object, which can be used to classify the object.

Abstract: The invention relates to a common carrier munition ammunition device, more particularly to common carrier payload delivery shell. There is provided a common carrier munition comprising a tail unit, a main body which comprises a payload cavity for receiving a payload, a fuze, and located between said main body and the fuze an ogive element, wherein the tail unit and main body comprise cooperatively engaging male and female threaded portions, wherein at least one of the threads is a shearable thread.

Abstract: The present disclosure relates to a method in materials testing to automatically locate the center of a feature on or in an object using the off-axis force feedback of a loadcell. In this disclosure, either a simplified model of the product or device being tested, or the product itself, is placed under the loadcell probe with the feature of interest roughly aligned under the probe tip. The probe is driven down into the feature. The product is automatically positioned relative to the probe in the x-direction until the side of the probe contacts the side of the feature. Contact is determined by monitoring the force feedback from the loadcell. When the vertical force from the side-load surpasses a pre-determined setpoint, contact is assumed and the value of the x-position of the product with respect to the probe is recorded. The product is then repositioned in the opposite direction in the x-axis to record the touch load on the other side. The center is then calculated as the average of the x values.

Abstract: A method for providing static and dynamic position information of a designated point of a measuring device having a surface and a structure that includes the designated point and being arranged moveable relatively to the surface. The method includes defining a model for representing an actual position of the designated point relative to the surface and deriving the actual position of the designated point by a calculation based on the defined model. At least two cells are used to model the structure. The at least two cells are linearly arranged in a linear extension direction. At least one of the cells is a variable cell of a set of at least one variable cell and exhibits variable elongation as to the extension direction. An actual elongation of the at least one variable cell is set to model a positional change, particularly in linear extension direction, of the designated point.

Abstract: A method and apparatus for aligning an input shaft of a wind turbine generator with an output shaft of a wind turbine are disclosed. Preferably, the method includes placing a push plate of a wind turbine alignment tool into pressing contact with a selected support flange of a wind turbine generator identified by a misalignment measurement device. With the push plate positioned, an indexing means of the wind turbine alignment tool is advanced along an adjustment link member of the wind turbine alignment tool to impart an alignment force onto the selected support flange to align the input shaft of the wind turbine generator with the output shaft of the wind turbine. The method preferably concludes by rechecking the alignment of the input shaft of the wind turbine generator with the output shaft of the wind turbine.

Abstract: A sensor package for sensing rotational positional data includes a stack of separated printed circuit boards that includes a first position target printed board, a second printed circuit board having a rotary sensor and a third printed circuit board having power supply components. The sensor package is included in a skew detection system for an aircraft control system, which includes a control surface having opposed first and second ends. A first drive mechanism is operatively connected to the first end of the control surface by a first rack and pinion assembly and a second drive mechanism is operatively connected to the second end of the control surface by a second rack and pinion assembly. Each rack and pinion assembly includes a respective sensor package operatively connected to the pinion thereof. A processing component is operatively connected to both sensor packages to determine presence of skew in the control surface.

Abstract: A method of measuring thickness of a material generally includes transmitting an oscillating signal from a first pad, through the material, to a second pad, and measuring the signal reflected back to the first pad. The material may be homogenous or heterogeneous, and has dielectric properties. The signal has its frequency varied over time so that the frequency response of the system (the first pad, the material, and the second pad) may be analyzed. The resonant frequency of the system is determined. The thickness of the material is determined based on the resonant frequency shift caused by a change in thickness of the material. The present invention may be advantageously employed to measure the thickness of a vehicle tire or other material. Related apparatuses are also disclosed.

Abstract: An interferometer includes a light source, a beam splitter, a reference reflector, a measuring reflector, a detection unit, and at least two transparent plane-parallel plates. The beam splitter splits a beam of rays into at least one measuring beam and at least one reference beam. Until being recombined, the measuring beam propagates in a measuring arm, and the reference beam propagates in a reference arm. The reference beam falls at least three times on the reference reflector located in the reference arm. The measuring reflector is disposed in the measuring arm and is joined to an object to be measured, which is movable along a measuring direction relative to the reference reflector. The measuring beam falls at least three times on the measuring reflector. At least one distance signal with regard to the position of the object to be measured is ascertainable from the interfering measuring and reference beams via the detection unit.

Abstract: The present invention discloses a processing method for laser heterodyne interferometric signal based on locking edge with high frequency digital signal. A reference signal and a measurement signal of heterodyne interferometer, after being processed by photodetector, signal amplifier, filtering circuit, voltage comparator and high frequency digital edge locking module, are transferred to pulse counting synchronized latching processing module, to obtain entire cycle interference fringe numbers and filling pulse numbers in one interference fringe cycle, of the reference signal and the measurement signal; the numbers are transferred to a computer to obtain displacement and speed of a measured object; usage of a high frequency digital pulse signal to lock the rising edge of laser heterodyne interferometric signal can improve the gradient of the rising edge of interference signal and eliminate wrong pulse caused by noises, and improve the accuracy and stability of the processing for the following signals.

Abstract: Some embodiments of the present invention relate to a coordinate measuring machine CMM, comprising a carrier as a support and positioning structure for an end-effector as a target, the end-effector being movable in at least three degrees of freedom and positionable by the carrier, a stationary metrology table as a support for a possible target object, and a control unit controlling the moving of the end-effector by the carrier. The CMM further comprises at least one, in particular at least two, imaging detectors for measuring and determining in six degrees of freedom a position of the possible target object, and an analysing unit for processing electronic signals and/or data delivered by the imaging detectors. According to the invention, the imaging detectors are firmly mounted to the metrology table, mechanically de-coupled from the carrier.