Abstract: Drying plant for particulate materials comprising: a drying duct which is provided with a substantially horizontal rectilinear starting section, a rectilinear ascending final section which extends upwards with a predetermined angle of inclination with respect to the vertical, and a curved intermediate section which connects the rectilinear starting section to the rectilinear final section; a hot gas generator designed for supplying to the inlet of the rectilinear starting section of the drying duct a flow of process gas at high temperature; a particulate feeding device which is structured so as to be able to feed/introduce into the rectilinear starting section of the drying duct a flow of particulate material to be dried substantially without relevant leaks of process gas from the drying duct; and a bypass duct which branches from the rectilinear starting section of the drying duct upstream of the particulate feeding device, and then re-joins the drying duct at the curved intermediate section, so as to feed b

Abstract: A dental furnace (10) for dental restorations comprising a firing chamber into which, in particular between a furnace bottom part (14) and a furnace upper part (12), the dental restoration, in particular within a muffle, can be introduced, and a sensor that is connected with a control device (52) for the dental furnace (10), wherein the sensor, in particular the temperature sensor (22), is arranged outside the firing chamber and comprises a detection range (40) that also extends outside the firing chamber.

Abstract: A panel cooled with a fluid, for metallurgic furnaces, includes a first chamber having a face which, in assembly conditions, is configured to face an interior of a metallurgic furnace and an opposite face in thermal contact with a face of a second chamber whose opposed face is configured to face, in assembly conditions, an external part of the metallurgic furnace. The first and second chambers are mutually independent. The first and second chambers each include an inlet and outlet of a cooling fluid. The panel has a first working configuration in which the first chamber is passed by a first cooling fluid and the second chamber is passed by a second cooling fluid different from the first cooling fluid, and a second working configuration in which the first chamber is passed by the second cooling fluid and the second chamber is passed by the first cooling fluid.

Abstract: The invention refers to a plate heat exchanger where the heat exchanger comprises a first flow channel between a first plate and a second plate, and where the flow channel comprises a lower distribution passage, a heat transfer passage and an upper distribution passage, where the heat transfer passage is vertically divided in a lower and an upper heat transfer passage and where the lower heat transfer passage is horizontally divided in a plurality of adjacent heat transfer zones, where the intermediate angle between the ridges and grooves in any of the heat transfer zones of the lower heat transfer passage is at least 30° larger than the intermediate angle of the ridges and grooves of the upper heat transfer passage. The advantage of the invention is that an improved heat exchanger is provided, having an increased thermal performance and an improved evaporation capacity.

Abstract: A liquid cooling heat exchanger module filled with a cooling liquid includes a casing (10) and a cooling structure (11), and the interior of the casing (10) is hollow, and the cooling structure (11) is installed in the casing (10), and the cooling structure (11) is formed by a plurality of fins (14) erected vertically and arranged equidistantly apart from one another to form a plurality of flow channels (15), and the cooling structure (11) includes one or more of transversally cut grooves (111) between the fins (15), so as to achieve the effects of extending the time for the cooling liquid to stay in the heat exchanger module (1), maximizing the cooling effect of the cooling liquid, and improving the heat dissipating efficiency.

Abstract: An indirect evaporative cooler for cooling inlet supply air from a first temperature to a second, lower temperature using a stream of liquid coolant and a stream of exhaust or purge air. The cooler includes a first flow channel for inlet supply air and a second flow channel adjacent the first for exhaust air. The first and second flow channels are defined in part by sheets of a membrane permeable to water vapor such that mass is transferred as a vapor through the membrane from the inlet supply air to a contained liquid desiccant for dehumidification and also to the exhaust air as heat is transferred from the inlet supply air to the liquid coolant. A separation wall divides the liquid desiccant and the coolant but allows heat to be transferred from the supply air to the coolant which releases water vapor to the counter or cross flowing exhaust air.

Abstract: A receptacle assembly includes a cage having an interior cavity and a divider that divides the interior cavity into first and second ports. The cage has a front end that is open to the first and second ports, which are configured to receive first and second pluggable modules, respectively, therein through the front end. The divider includes an internal compartment that extends between the first and second ports. The receptacle assembly includes a thermal transfer assembly having a base and a spring. The base is received within the internal compartment of the divider and includes a module side that faces the first port. The spring is operatively connected between the divider and the base such that the spring is configured to bias the base toward the first port and thereby press the module side of the base into thermal communication with the first pluggable module.

Abstract: Apparatus (1) for storing energy includes a high pressure storage vessel (10) for receiving high pressure gas, the high pressure storage vessel (10) including a high pressure heat store including a first chamber housing a first gas-permeable heat storage structure (14); and a low pressure storage vessel (11,12) for receiving low pressure gas, the low pressure storage vessel (11,12) including a low pressure heat store including a second chamber housing a second gas-permeable heat storage structure (16,18. The first heat storage structure (14) has a mean surface area per unit volume which is higher than a mean surface area per unit volume of the second heat storage structure (16,18).

Abstract: The present invention relates to a thermal energy storage system comprising an energy storage (2) having a vertical temperature gradient and an internal combined heating and cooling machine (15). The internal combined heating and cooling machine (15) is adapted for retrieving energy having a first temperature from the energy storage, while simultaneously returning heated energy having a second higher temperature and cooled energy having a third lower temperature. The invention also relates to a method for using the thermal energy storage system.

Abstract: A first header collecting pipe of an outdoor heat exchanger has three communication chambers and one mixing chamber. One auxiliary horizontal partition plate is disposed between two main horizontal partition plates. The mixing chamber is defined between the first main horizontal partition plate and the auxiliary horizontal partition plate. A gas-liquid two-phase refrigerant supplied to the outdoor heat exchanger functioning as an evaporator flows into the mixing chamber, and is then distributed to the three communication chambers. This structure allows the refrigerant that is to be distributed from the mixing chamber to the communication chambers to have a uniform wetness.

Abstract: A seal for a heat exchanger of a machine includes a pad and a sealing lip. The pad includes a perimeter, a core face, and a tank face. The core face is in opposing relationship to the tank face. The pad defines a pad plane and an opening which extends between the core face and the tank face. The scaling lip circumscribes the perimeter of the pad and includes a base end, which is connected to the perimeter of the pad, and a terminal end. The sealing lip extends outwardly along the pad plane from the pad perimeter and projects from the core face. The sealing lip including an outer lip wall which extends from the base end to the terminal end along a tip axis disposed at an oblique lip pitch angle relative to the pad plane.

Abstract: A plug for sealing the end of a tube including a cylindrical housing member having longitudinal bore that communicates with a threaded portion. An insert post having a threaded body is received within the threaded portion of the bore and supports a frustroconical member that deflects at least a portion of the wall of the housing member that is highly ductile when a rear nut is threaded onto the body of the insert post. The frustroconical member has a correspondingly large angle of taper to deflect the wall of the housing member outwardly as much as possible without causing fracturing of the wall.

Abstract: In a breech loading firearm, an extractor arm is slidingly arranged within a cavity beneath the barrel. The extractor arm has a retracted position and an extended position. In the retracted position, the extractor arm is constrained from rotating, and in the extended position, the extractor arm has at least one degree of rotational freedom in the cavity without bending. The intermediate portion of the extractor arm is thicker than the distal end such that the second thickness fits within the cavity when the extractor arm is in its retracted position. The reduced thickness at the distal end provides a space between the extractor arm and a wall of the cavity when the extractor arm is in its extended position to provide for the rotation of the extractor arm within the cavity in its extended position. The proximal end of the extractor arm has an angled face.

Abstract: An enhanced magazine release button assembly having a button member, wherein the button member includes a projection formed on an end of the button member; and a finger pad member, wherein the finger pad member includes a recess mateable with the projection of the button member, wherein the finger pad member is secured to the end of the button member via interaction of the projection and the recess and is further secured to the end of the button member via a fastener.

Abstract: A trigger mechanism includes a hammer, and a trigger disconnector assembly including a trigger body having a trigger nose, and a disconnector having a disconnector hook. A reset lever is mounted for movement between open and closed positions. The trigger disconnector assembly is in mechanical communication with the reset lever. A striking end of the hammer strikes the reset lever in a past-cocked position of the hammer moving the reset lever from the open position to the closed position, the reset lever acting on the trigger disconnector assembly to reset the trigger body and the disconnector in the past-cocked position of the hammer in preparation for securing the hammer in a cocked position preparatory to firing by another trigger pull of the trigger body.

Abstract: Interchangeable choke tube for the shot load of smoothbore shotgun which causes to the shot load gradually initial tightening of progressive form, expansion and final retightening (7), featuring internally initial tightening of progressive form section (8) followed by expansion section (9) and which is followed by final retightening section (10), which achieves the improvement of the effectiveness of the shot as, first, the initial tightening of progressive form section (8) featured applies to the shot charge, as it passes through it, vertical lateral pressure which splits the aggregates of shot pellets and second, the expansion section (9) which follows causes ameliorative rearrangement of the shot pellets as they are deploying in a space with larger diameter and, in this way, and their smoother entrance into the final retightening section (10) with result the improvement of their distribution within their pattern, something that is not happening with the hitherto existing ones.

Abstract: A traverse stop clamp is provided for restricting sweep of a machine gun mounted on a tripod. The stop clamp is installable on a traverse bar connecting to rear legs of the tripod, the traverse bar having an inverse U-shape cross-section that form edges at ends of the U-shape. The stop clamp includes an open ring member, a shift member, a handle, a spring pin and a locking nut. The open ring member has a C-shaped ring with an interrupted circumferential outer periphery and an inner periphery with channels for receiving the edges of the traverse bar. The outer periphery has first and second ring ends separated by an adjustable gap. The open ring member further includes first and second tabs disposed to extend radially outward from the first and second ends. These first and second tabs respectively have first and second through-holes. The shift member has a tang and a shaft at respectively first and second shifter ends. The receiver has a third through-hole, and the shaft has a threaded terminus.

Abstract: A leveraged bow for launching a projectile, the bow having a stock, a butt region and a grip region, and a fore-end supporting a pair of bow arms. The fore-end includes a top surface for receiving and supporting the projectile and a carriage assembly slidably mounted with an interior region of the fore-end. A main bow power string is coupled to the carriage. The carriage also has a launch string associated therewith which is powered by the movement of the main bow power string. A trigger and latch are used to release the bow power string and, in turn, the launch string to leverage the velocity of the arrow being propelled by the bow.

Abstract: A leveraged bow for launching a projectile, the bow having a stock, a butt region and a grip region, and a fore-end supporting a pair of bow arms. The fore-end includes a top surface for receiving and supporting the projectile and a carriage assembly slidably mounted with an interior region of the fore-end. A main bow power string is coupled to the carriage. The carriage also has a launch string associated therewith which is powered by the movement of the main bow power string. A trigger and latch are used to release the bow power string and, in turn, the launch string to leverage the velocity of the arrow being propelled by the bow.

Abstract: What is disclosed is a braking mechanism for holding a bow string at full draw or any partial draw position along the entire length of the draw stroke. The braking mechanism functions by imparting friction onto the string of a compound archery bow thereby preventing the string from moving or being wound out of or into a cam of the compound archery bow.

Abstract: A paintball gun generally comprising a body split into an upper portion and a lower portion is provided. The split body allows exposure of internal components for access, service and/or maintenance. In an embodiment, the paintball gun preferably includes a valve assembly fixedly secured within the body. In an embodiment, the paintball gun preferably includes a barrel adapter for engaging a barrel, with the barrel adapter secured within the body by a gripping piece. A method of servicing a paintball gun is also provided.

Abstract: A regulator assembly for a paintball marker includes a body having an inlet orifice for connecting to the compressed fluid source, an outlet orifice for connecting to the marker, and a cavity formed therein having a first chamber proximate the outlet orifice, a second chamber proximate the inlet orifice and providing a fluid pathway between the inlet and outlet orifices, a poppet valve functionally positioned within the outlet orifice, and a pneumatic valve actuator positioned within the cavity of the body and supportively coupled to the poppet valve. The pneumatic valve actuator comprises a piston, a spring pack and an adjustment strut. The spring pack is modular to allow interchanging and includes a plurality of Belleville springs properly oriented and secured in place by a washer and O-ring to create a predefined pressure threshold.

Abstract: A hand guard is provided for a firearm, such as a rifle, and may be suitable for maintaining the alignment of the hand guard, and any accessories coupled thereto, relative to the rifle. The hand guard may be configured so that at least a portion of the hand guard can be removed from the firearm and then re-installed on the firearm without significant change in the orientation and position of the hand guard. The hand guard may also be suitable for coupling accessories such as lights, scopes, laser sights, and other firearm accessories to the firearm.

Abstract: A multi-launcher firearm includes a firearm body comprising a plurality of ammunition launchers for storing different types of ammunitions having different ranges in the respective ammunition launchers, an input device connected to the firearm body for receiving a designation inputted by a user, and a controller mounted on the firearm body and respectively connected to each ammunition launcher for receiving the designation from the input device and then controlling the ammunition launcher correspondent to the designation to launch out the ammunition stored therein. The ammunition in each ammunition launcher comprises a plurality of rocket projectiles. All the rocket projectiles stored in the ammunition launcher share an identical diameter.

Abstract: Certain embodiments include archery bow sights which incorporate pin adjustment mechanisms which can be set to automatically arrange sight pins in appropriate proportional spacing for various target ranges based on the spacing of two initial points. In certain embodiments, a first pin on an archery bow sight is calibrated at a first reference distance to define a first reference point on the sight. The bow and sight is then used at a second reference distance to determine and align a second reference point for a second sight pin. As aligned, the mechanism controls one or more additional sight pins to correspond with additional reference distances. In certain embodiments illustrated herein, the pin adjustment mechanism arranges pins within a vertically aligned orientation.

Abstract: A rangefinder having improved display capabilities. The rangefinder has a ranging system, a processor, and a display. The rangefinder may have a multi-position button for inputting data, and may also have an inertial navigation unit. The rangefinder has improved input and tracking of wind direction and speed, allowing for improved ballistic compensation for wind.

Abstract: An arrow fletching system for facilitating quick disconnect fletchings on an arrow includes an arrow that has a back end and the back end is open. A tube is removably coupled to the arrow and the tube is positioned on the back end. A plurality of fletchings is provided. The tube engages each of the fletchings such that the tube retains the fletchings on the arrow.

Abstract: A self-centering nock is provided for use in a well-balanced nock-arrow or nock-bolt assembly. The self-centering nock includes compliant projecting protrusions or compliant arms that are substantially rotationally symmetric about a cross section normal to a main axis of the self-centering nock. The compliant projecting protrusions or compliant arms may be received in bolts that have bores of differing internal dimensions.

Abstract: A method of controlling a projectile includes initiating an execution mode if a roll control authority parameter is outside of a pre-determined operating range for a projectile. The execution mode includes bypassing a guidance command and sending a modified command to execute a coning maneuver to improve control response of the projectile. A projectile control system includes a processor operatively connected to a memory. The memory has instructions recorded thereon that, when read by the processor, cause the processor to execute the method operations described above.

Abstract: The present invention relates to a method of identifying ammunition type and/or weapon type used to fire the ammunition from gunshot residue. This method involves providing a sample including a gunshot residue, subjecting the sample to spectroscopic analysis to produce a spectroscopic signature for the sample, and identifying the spectroscopic signature to ascertain the type of ammunition and/or the type of weapon used to fire the ammunition. A method of establishing reference spectroscopic signatures for ammunition type and/or weapon type used to fire the ammunition is also disclosed.

Abstract: The present invention describes an electronic fuze operable to complement a mechanical point impact fuze. The electronic fuze includes a voltage generator circuit, micro-controller, a piezo-electric sensor, a firing circuit and a safety lockout circuit. When a projectile strikes a target at an optimum angle, the mechanical point impact fuze is activated; when the strike angle is oblique, the mechanical point impact fuze may be ineffective but the piezo-electric sensor is operable to trigger the firing circuit. The safety lockout circuit ensures the firing circuit is operative only after a predetermined delay time when an n-channel FET is turned OFF. The micro-controller also generates a TIME-OUT signal, which provides for self-destruction of a projectile that has failed to explode.

Abstract: The present invention provides ammunition cartridge having a two piece primer insert with a flange, a polymeric middle body extending from the primer insert to a cylindrical middle body coupling region, and a polymeric projectile end having a projectile aperture mated to the polymeric middle body.

Abstract: A measuring force includes a stem, an arm, a detector, a rotation fulcrum, and a measuring force adjuster. A probe which makes contact with a workpiece is provided on the stem. An end portion of the arm is joined to the stem. The rotation fulcrum acts as a fulcrum for a rotating motion of the stem and the arm. The detector detects a displacement amount of the rotating motion of the arm. A crossed spring of the rotation fulcrum imparts on the stem and the arm a torque around an axis of the rotating motion in accordance with the displacement amount of the rotating motion. The measuring force adjuster imparts on the arm and the stem a torque, in a reverse direction of the torque generated by the crossed spring, by an attraction force generated by a magnetic force between at least two magnetic members mutually arranged at opposite ends.

Abstract: An apparatus for setting a lock assembly to accommodate a thickness of a door. The apparatus may include a housing that is sized for placement in an opening in the door and an adjustment member that is structured for at least selective axial displacement about the housing. At least a portion of the adjustment member may be structured for placement adjacent to an outside portion of the door. The apparatus may include an indicator assembly having an indicator gauge that is biased against the adjustment member by a biasing element. The indicator portion is structured for axial displacement about the housing via the axial displacement of the adjustment member. The indicator assembly may also include a cover having an opening that provides a visual access point for an indicium of the indicator gauge.

Abstract: A fluidic media detection system for detecting a presence of fluidic media includes a first housing portion adapted to be carried by a user; a second housing portion configured to be selectively operatively engaged with and disengaged from the first housing portion, the second housing portion for supporting a reservoir having an interior volume for containing fluidic media; a fluid conduit supported by one of the first housing portion and the second housing portion for providing fluid communication between the reservoir and the user when the first housing portion and the second housing portion are operatively engaged; and at least one interactive element, positioned near a portion of the fluid conduit, that interacts with the fluidic media when the fluidic media is present in the fluid conduit.

Abstract: A single housing with a non-ferromagnetic piezo-driven flexure has primary and secondary coil forms of different diameters, one coaxially inside the other, integrated in the flexure. The cylinders defining the planes of the primary and secondaries do not spatially overlap. The secondary coil forms may be wound in opposite directions and wired to provide a transformer device. Movement of the primary relative to the secondaries in the direction of the central axis of the coils can be differentially detected with high precision.

Abstract: A rotary position encoder is described that includes a hub configured to mount on an end of a rotatable shaft of a machine tool and rotate concurrently with the rotatable shaft. The hub includes a cup formed in a first end to receive the rotatable shaft, the cup having equally spaced axial grooves formed on an inner surface. A collar clamps the hub to the rotatable shaft by collapsing the cup around the rotatable shaft. The rotary position encoder further includes a sensor configured to detect a rotational position of the hub and a housing, wherein the sensor is mounted to the housing in a position opposite a second end of the hub. The hub is rotatably coupled to the housing via a bearing and a bracket is attached to the housing for mounting the rotary position encoder to the machine tool and preloading the bearing.

Abstract: A compact, balanced, up to three degrees of freedom measuring interferometer having dual beam splitters rotated ninety degrees with respect to each other and a measurement detector including a quadrant detector or multi-core fiber with four detectors which enables fiber delivery of an optical source without periodic error, an interferometer system, and method for using is disclosed.

Abstract: An inner diameter measuring device comprises an object to be measured supporting carriage, being arranged movably along a rail installed on an upper surface of a bed and used for holding a hollow pipe to be measured, a supporting shaft extended from a base end to a forward end of the bed, being insertable into the pipe to be measured and being cantilever-supported, and an inner diameter measuring unit installed on a forward end of the supporting shaft, being insertable into the pipe to be measured and for measuring the inner surface of the pipe to be measured. The inner diameter measuring unit is adapted to be inserted into the pipe to be measured, and is adapted to measure an inner diameter of the pipe to be measured in a process where the object to be measured supporting carriage is moved toward the base end of the supporting shaft.

Abstract: A device for measuring movement of a mobile element moving in at least one direction, includes: a light source adapted to emit a light beam; at least one optical member intercepting the light beam and attached to the mobile element to track its movement; pixel type sensors capturing the transmitted beam determined by the relative position of the optical member relative to the light source, the pixels being disposed so that at least some of them receive illumination that varies with the position of the mobile element as it moves; a comparator module comparing the values obtained from the pixels of the sensors with two distinct thresholds in order to assign some of them a logic value; a calculation module determining the position of the mobile element from the data from the comparator module.

Abstract: The present invention discloses an optical testing device includes a base, a holder, and a number of illuminating modules. The base defines a sliding groove extending along a first direction in a top surface thereof. The holder slides along a second direction on the top surface of the base. The interval regulator is connected to the holder. The illuminating modules are slidably received in the sliding groove. Each of the illuminating modules comprises a circuit board and a single lighting element set on the circuit board. The interval regulator drives the holder to slide along a second direction so that a distance between the holder and the illuminating modules is regulated. The first direction is not parallel to the second direction.

Abstract: An integrated jig for assembling inspection of a door assembly includes a loading module on which a door assembly is held. An alignment module aligns a position of the door assembly to be a reference position and fixes the door assembly to the loading module. A sensor module inspects an assembling state of the door assembly.

Abstract: A vehicle control system may include a vehicle frame, a mount secured to the vehicle frame and configured for rigidly securing a smartphone therein such that motions experienced by the vehicle frame are correspondingly experienced by the smartphone, and system electronics arranged on the frame and in communication with the smartphone and vehicle controllers, the system electronics configured to receive signals from the smartphone and control directional devices of the vehicle based on the signals via the vehicle controllers. A system for preparing signals for transmission to the vehicle to control navigation may also be provided.

Abstract: A survey device includes a dual-axis position encoder, a video camera coupled, a laser rangefinder, a wireless transceiver, and a processor. The processor is configured to autonomously orient the video camera via the dual-axis position encoder, autonomously identify other survey devices and a target that are within a line-of-sight field-of-view of the video camera, operate the laser rangefinder to determine range to the autonomously identified target and the autonomously identified other survey devices, and determining coordinates of the autonomously identified target and the autonomously identified other survey devices based on the dual-axis position encoder.

Abstract: A device and method for determining level planes using one or more lasers. The device may include a single base or a plurality of bases that allow lasers to be attached to project laser lines across a work surface. The device also may include notches to insert and connect a measuring device at a center of a base to facilitate accurate measurements and markings along the projected laser lines.

Abstract: A control device comprises a sensor unit, which outputs a measurement signal, which reflects a deviation of an oscillator along a direction of excitation. A controller main unit derives a control signal for an actuator unit from the measurement signal and a harmonic set point signal such that the actuator unit counteracts a deviation of the deflection of the oscillator from a set amplitude of a harmonic resonance oscillation. A controller extension unit estimates actual-phase and actual-amplitude of a residual oscillation of the oscillator and synchronizes the harmonic set point signal with the residual oscillation at a deactivated actuator unit. The residual energy contained in the residual oscillation is used, in order to arrive faster at a defined operation state of the oscillator.

Abstract: A fiber-optic Sagnac interferometer in a rotation rate sensor comprises a multifunctional integrated optical chip (MIOC) with a MIOC transfer function. A digital filter is connected upstream to the multi-functional integrated optical chip, whose filter transfer function corresponds basically to the inverse MIOC transfer function such that the MIOC transfer function is compensated by the filter transfer function. Corresponding coefficients of the filter transfer function may be determined in a main control loop.

Abstract: A fiber optic interferometric measurement system includes a light source; first and second optical transmission elements; first and second Sagnac-ring interferometers, respectively, including first and second fiber optic coils, and, respectively, having lengths L1 and L2; and first and second individual integrated optical circuits, respectively, connected to the first and second optical transmission elements, and to the two ends of the first and second optic coils, respectively. The interferometric system includes a multiple integrated optical circuit integrating, on a single substrate, the first and second individual integrated optical circuits, and the difference ?l between the optical length of the first optical transmission elements and the optical length of the second optical transmission elements is higher than the maximum of ?Nb1×L1 and ?NB2×L2, in which ?Nb1 and ?Nb2, respectively, are the group birefringence index difference of the first and second fiber optic coils, respectively.

Abstract: A method and system for transmitting source light to a plurality of Sagnac interferometers includes a first directional coupler that splits the source light into a second light beam and a third light beam. The second light beam supplies light to a first Sagnac interferometer and the second light beam supplies light to a second directional coupler, and the first directional coupler also delivers light returning from the first Sagnac interferometer to a first detector that is used to indicate rotation of the first Sagnac interferometer. The second directional coupler splits the third light beam into a fourth light beam and a fifth light beam, and the fourth light beam supplies light to a second Sagnac interferometer. The second directional coupler delivers light returning from the second Sagnac interferometer to a second detector, and the second detector provides a signal indicative of rotation of the second Sagnac interferometer.

Abstract: The invention relates to measuring devices to be used in physical measuring, and more particularly, to a method and a device for measuring the progress of a moving person. In the solution according to the invention the quantities describing the progress of the moving person are being calculated based on step cycle-specific acceleration stage characteristic accelerations a+ and step cycle-specific braking stage characteristic acceleration a? obtained from acceleration values measured by means of an acceleration sensor, and on the measured time. The invention aims at providing a solution, better and simpler than prior solutions, for measuring the progress of a moving person, which solution is applicable for use in a multitude of measuring solutions for ways of locomotion of various types.