Abstract: In connection with the tumbling of the bodies of killed furred animals, a tumbler (2) has a cavity (21) between A filling opening (20) and A delivery opening (26) that is divided into a number of sections (30, 32) to which the bodies are transferred by a conveyor unit (36) that extends through the tumbler (2), combined with a discharge/recycling arrangement (28) for individual and controlled discharge of the bodies from the tumbler. The conveyor unit (36) also has a bottom section with a worm conveyor for recirculation of the supply of sawdust to the respective sections. The tumbler (2) can be emptied and filled without having to stop operations, and is suitable for use for tumbling of pelts with the leather side outermost or with the fur side outermost, so that the tumbler replaces two or three tumblers which normally are found in a pelt processing plant.

Abstract: A trailer security apparatus is mounted to the frame of a trailer to prevent an unauthorized usage of the trailer. The trailer security apparatus has a switch that is selectively moveable between an unlocked position and a locked position. The trailer security apparatus also has a lock device responsive to the switch to clearingly disengage from wheels on the trailer to permit rolling the trailer in the unlocked position of the switch, and to interferingly engage one or more of the wheels on the trailer to prevent rolling the trailer in the locked position of the switch.

Abstract: A lock, particularly for suitcases and trunks, comprising at least one clamp which is articulated with a first end, to a first half-shell of a suitcase and can rotate from a closure configuration of the suitcase, in which a lip that protrudes from the clamp abuts elastically against a protrusion formed along a second half-shell of the suitcase, to fasten the first half-shell to the second half-shell, to an opening configuration of the suitcase, in which the lip is disengaged from the protrusion, and vice versa. The lock comprises an arm, articulated to the clamp and having, at a first end portion thereof, a curved tab. The tab engages elastically by interlocking with the protrusion at the closure configuration, in order to reinforce the fastening of the first half-shell to the second half-shell. The arm can be operated manually to disengage the tab from the protrusion, independently of the clamp.

Abstract: An improved locking handle and power module assembly provides continued ability to open and close a truck cap or tonneau cover from within or without, and presents an enclosed mechanism to prevent obstruction or jamming. A release handle is provided to permit unlatching of a latch mechanism operated by the locking handle without regard to whether the locking handle is locked or not.

Abstract: A steering lock device includes a lock member that is slidable between a lock position and an unlock position, and a slider that is disposed slidably in a direction perpendicular to a moving direction of the lock member. A sloped portion that is linearly sloped toward the steering shaft along a slide direction of the slider is provided on at least one of the lock member and the slider. The lock member is shifted between the lock position and the unlock position by the sloped portion in response to sliding of the slider. According to the steering lock device, downsizing can be brought due to its short height along a stroke direction of the lock member and cost reduction by commoditization of its main components can be achieved.

Abstract: A lock includes a housing, a keypad disposed on the housing, and a latch assembled with the housing. The keypad includes a plurality of button assemblies, each including an axially depressible button member including a camming surface, a lock wheel having a plurality of camming teeth, and a latch releasing feature secured to the lock wheel for rotation therewith. Pressing the button member causes the camming surface to engage one of the plurality of calming teeth, thereby incrementally rotating the lock wheel between a plurality of rotational positions. When the button members of a predetermined one or more of the plurality of button assemblies are depressed a predetermined number of times, the latch releasing features of each of the plurality of button assemblies align with a plurality of blocking features of the latch to permit lateral sliding movement of the latch from a locked condition to an unlocked condition.

Abstract: The present invention relates to a locking device and to an actuating device for activating said locking device.

Abstract: A method forms a relatively stable ammonium nitrate composite material. The method includes (a) blending ammonium nitrate with an average particle diameter greater than about 1 mm and a substantially non-oxidizing compound in fine particle form; and (b) reducing the average size of said ammonium nitrate granules in the presence of the non-oxidizing compound in fine particle form to produce a substantially homogeneous blend of ammonium nitrate and the non-oxidizing compound having an average particle diameter of about 1 to about 1,000 ?m to form a substantially non-explosive powder.

Abstract: The invention relates to a method for producing a sheet metal component. A hot or cold strip is electrolytically coated or coated in a smelting bath and the thus coated hot or cold strip is subjected to a flexible rolling process. During said process, sheet metal having various thicknesses of the flexibly rolled steel strips are produced due to various rolling pressures. Said invention is characterized in that in accordance with the thickness of the sheet metal after being rolled in a flexible manner or in accordance with the rolling pressure during flexible rolling, either the coating whilst being coated has various thicknesses, and in accordance with the rolling pressure with increasing rolling pressure that is expected, the thickness of the coating is thicker and/or the coating prior to or after the flexible rolling is subjected to a mechanical or chemical surface treatment for adjusting the desired emissivity or heat absorption capacity.

Abstract: An apparatus is specified for continuous corrugation of a metallic tube (1) which apparatus has a tool holder (13), which can rotate about the initially smooth tube and has a tool (14) which is mounted eccentrically with respect to the tube and forces a corrugation into the tube during operation of the apparatus, which corrugation runs transversely with respect to the longitudinal direction of the tube. A first hollow shaft (12) is attached to the tool holder (13), projects in the pulling-off direction from it, surrounds the tube after the corrugation process and can be rotated about its axis with the tool holder (13) by an electric motor. A second hollow shaft (16) is arranged at a distance from the first hollow shaft (12) and coaxially about the end, facing away from the tool holder (13), of the first hollow shaft (12), which second hollow shaft (16) is mounted such that it can rotate about its axis and can be driven by the electric motor.

Abstract: An object of the invention is to reduce structural and strength differences over the width of the rolling stock and to minimize the losses of the rolling stock caused by trimming. The object of the invention is achieved, according to the invention, by guiding the rolling stock (5) longitudinally and on opposite sides of a laminar cooling region (4).

Abstract: The invention relates to a rolling device comprising at least two working rollers (2, 3) which are each mounted in a rolling stand (6) by means of at least one working roller chock (4, 5), wherein, to adjust a desired rolling nip (7), at least one of the working rollers (2, 3) in the rolling stand (6) can be adjusted relative to the other working roller (2, 3), in particular in the vertical direction, wherein axial displacement means (8) are provided by means of which a working roller (2, 3) can be displaced in its axial direction relative to the rolling stand (6), wherein the axial displacement means (8) comprise an actuating element (9) which is arranged coaxially to the axis (10) of the working roller (2, 3) to be displaced, and wherein at least one working roller (2, 3) is operatively connected to bending means (11) by means of which a roller can be subjected to a bending moment.

Abstract: The present invention provides a pressing device for bending, in which a pipe is held between a bending die having a shape corresponding to a shape of bending and a clamping die revolvable around the bending die, and, when the pipe is bent by revolving the clamping die around the bending die, an axial compression force is applied to the pipe. The pressing device for bending includes a movable table arranged movable in an axial direction of the pipe, a first cylinder provided to the movable table and able to press a rear end of the pipe, and a second cylinder provided to the movable table and able to press a fixed side in a direction opposite to a direction in which the first cylinder presses the pipe.

Abstract: The invention describes a method of compacting the surface of a sintered part (2), whereby a sintered part (2) is moved in a die (1) along an axis (3) in a pressing direction (20) through several die portions (7, 8, 9) from a first die portion (7) at a first die orifice (6) into a last die portion (9), and a wall surface (16) of each die portion (7, 8, 9) forms at least one pressing surface (18) against which a contact surface (17) formed by an external surface (12) of the sintered part (2) is pressed, and an internal contour (25) defined by the pressing surface (18) lying in a cross-section by reference to the axis (3) at least approximately corresponds to an external contour (26) defined by the contact surface (17).

Abstract: A crimping device for securing a seal member onto overlapped end portions of a strap material includes at least a tool head, operating and stationary handles, two rows of crimping elements having at least a pair of shears and oppositely situated pair of jaws extended between the pair of shears. The crimping elements may be disposed in the tool head and connected with the handles so that at least one row of crimping elements crimps a seal while at least one row is idle when the handles move away from each other. In an embodiment, the handles can make an inward stroke only when a full jaw-closing outward crimping stroke is completed. At least one row of crimping elements crimps the seal with an inward movement of the handles while at least one previously actuated row of crimping elements is not involved in closing the seal.

Abstract: A tube splicing machine is provided which includes a frame on which a die holder is located. A swaging die is removably mounted in the die holder, and the die holder includes a main plate and a top plate that is removably connected to the main plate. A die holding opening is defined through a portion of the main plate and the top plate in which the swaging die is inserted. The swaging die includes two die parts that together define a die opening and are separable along a mid-line of the die opening. A splice fitting engagement plate with a splice fitting engagement portion is located on the frame, with the splice fitting engagement plate having an opening or an openable top to allow removable connection to a splice fitting. An actuator is connected between the splice fitting engagement plate and the die holder for moving the splice fitting engagement plate relative to the die holder from an initial position to a swaged position, in order to swage the splice fitting onto a length of hose or tubing.

Abstract: A workpiece enlarging method is provided, by which an enlarged portion can stably be formed on a portion of a workpiece such as a shaft member, and a drive force required to form the enlarged portion can be reduced. The workpiece enlarging method forms the enlarged portion on the workpiece (W) by applying, with respect to the workpiece (W), alternating shear energy in a transverse direction thereof so as to suppress deformation of the workpiece (W) within an elastic limit while applying compression energy that produces compressive stress equal to or greater than an initial yield strength to increase internal energy of the workpiece (W), thereby decomposing a portion of the increased internal energy by the alternating shear energy and deforming and enlarging the enlargement intended area of the workpiece (W) with the assistance of the decomposed energy obtained by the decomposition.

Abstract: A fixed support for a metal sheet drawing machine. In one implementation the fixed support includes a window through which metal sheet to be drawn passes, and a holder which holds the metal sheet within the window as the metal sheet is drawn. The fixed support is stationary in relation to the drawing machine and includes a suspending structure that maintains a base of the fixed support a distance from any other surfaces during the sheet drawing process.

Abstract: A drawing support for a metal sheet drawing machine. In one implementation the drawing support is constructed of a plurality of plates positioned in series one after the other and coupled together so that at least a portion of the plurality of plates are compressed one against the other. In one implementation each of the plurality of plates has a window through which metal sheet to be drawn may pass, and a holder for holding the metal sheet when it is drawn.

Abstract: A method is provided of calibrating a system that detects presence of a pollution component within exhaust gases proceeding along an exhaust passageway. A measurement cell of a probe is isolated by movement of either the entire probe or a shield within the probe from the exhaust gas to allow reference gas to be detected by a laser beam in the mid-infrared range in the measurement cell to calibrate the system. In another example, a laser source is placed on one side of an exhaust passageway and a detector is placed on the other side. A reference cell is provided that is used to receive reference gas and calibrate the system. In yet another example, the exhaust gas is extracted from the passageway and is measured in a reference cell. The reference cell is also filled with reference gas when it is desired to calibrate the system.

Abstract: A method and an apparatus for diagnosis of a flowmeter are disclosed. The method includes thermally coupling a first sensor unit of the flowmeter to a fluid and thermally coupling a second sensor unit of the flowmeter to the fluid. The method also includes actively heating or cooling the first sensor unit by applying power to the first sensor unit such that its temperature is different from the temperature of the fluid, and simultaneously actively heating or cooling the second sensor unit by applying power to the second sensor unit such that its temperature is different from the temperature of the fluid, and typically from the temperature of the first sensor.

Abstract: A method of calibrating positions within a materials handling system, wherein the materials handling system includes multiple stations for carrying out tasks and a carrier that is movable between the multiple stations, includes the steps of: providing calibration points at a plurality of the multiple stations; moving the carrier to at least some of the calibration points; contacting the calibration points; recording the locations of the calibration points; and determining locations of key components of the stations based on the locations of the calibration points. In some embodiments, the method includes contacting the calibration points with a calibration tool, which may include: a cylindrical body; a groove in the cylindrical body sized and configured to receive jaws from the carrier; and a cylindrical upper flange positioned on an upper end of the cylindrical body. In this configuration, the tool can be gripped by the carrier and employed to perform a variety of calibration functions.

Abstract: A method of calibrating positions within a materials handling system, wherein the materials handling system includes multiple stations for carrying out tasks and a carrier that is movable between the multiple stations, includes the steps of: providing calibration points at a plurality of the multiple stations; moving the carrier to at least some of the calibration points; contacting the calibration points; recording the locations of the calibration points; and determining locations of key components of the stations based on the locations of the calibration points. In some embodiments, the method includes contacting the calibration points with a calibration tool, which may include: a cylindrical body; a groove in the cylindrical body sized and configured to receive jaws from the carrier; and a cylindrical upper flange positioned on an upper end of the cylindrical body. In this configuration, the tool can be gripped by the carrier and employed to perform a variety of calibration functions.

Abstract: A system and method for carrying out non-destructive testing and inspection of test objects to assess their structural integrity uses a calibration module configured to provide V-Path time of flight (TOF) correction data over a plurality of object thickness points, obtained from an object or objects having known thicknesses using the same physical probe as is used for the inspection measurements. When a probe launches acoustical waves into a test object and an instrument and a control system compute a time of flight value of the acoustical waves launched by the probe, the pre-obtained V-Path TOF correction data is used to correct the measured time of flight computed by the instrument.

Abstract: An antiskid performance testing apparatus for shoe sole comprises a base (17), a locating device and a force application device. The force application device includes a power source, a transport mechanism and a force application rod (6). The force application rod (6) is connected with a fixing shaft (8) via a sector turntable (2). The sector turntable (2) is equipped with a circular arc groove, and is sleeved on the fixing shaft (8) via a sleeve (12). A lower end of the force application rod (6) is fixed on the sector turntable (2) via a location pin (3), an upper end of the force application rod (6) is connected with the transport mechanism, and middle of the force application rod (6) is fixed with a slide pin (4). Two ends of the slide pin (4) are located in the circular arc groove of the sector turntable (2). The testing apparatus can test the antiskid performance of shoe under different force angles.

Abstract: The invention concerns a device for generating impacts on a structure, and this device has a projectile head. According to the invention, this head includes a main body (1) on which an impact element (2) is mounted so it projects. The device includes a mechanical propulsion element (8) to set this projectile head in motion, and the propulsion element is capable of moving between an initial so-called resting position where that propulsion element is immobile and the projectile head is held against it by at least one retaining element (10), and a second position where this propulsion element comes to a stop against stop elements (11, 12), and the projectile head moves in translation toward the structure guided by guidance elements (4). The device also includes an anti-rebound system (6, 7) to prevent any rebound by the projectile head after impact on the structure.

Abstract: In one embodiment, a device for measuring concentration of a paramagnetic gas is provided. The device comprises a measuring cell having a closed cavity therein, a reference gas conduit extending into the cavity for supplying a reference gas to the measuring cell, the reference gas comprising a predetermined concentration of the paramagnetic gas, a measurable gas conduit extending into the cavity for supplying a measurable gas to the measuring cell, the measurable gas comprising a measurable concentration of the paramagnetic gas, a first microphone differentially coupled to the measurable gas conduit and the reference gas conduit, and a second microphone located at a predetermined distance from the reference gas conduit.

Abstract: A testing system includes a single air collection box and a laminar flow system for obtain an airflow measurement. The single airflow box has air inlet and outlet ports at opposite ends. The laminar flow element has a laminar flow element inlet in fluid communication with the air collection box and a laminar flow element outlet sealed with the air outlet port of the air collection box. A blower in fluid communication with the laminar flow element outlet draws airflow into the air collection box through a unit under test and out of the air collection box through the laminar flow element. A pressure transducer senses the differential air pressure across the laminar flow element and enables a determination of the airflow rate.

Abstract: Testing the reliability of flexible separators arranged under conditions enabling the cycling rate of testing to be accelerated. According to the invention, two separators are enclosed in two rigid chambers, each defining a liquid capacity and a gas capacity. The two gas capacities communicate with each other, and each of the liquid capacities communicates with means for causing the volume of each of them to vary in alternation.

Abstract: A fatigue testing system provides simultaneous cycle testing for a plurality of prosthetic devices under simulated physiological loading conditions. A plurality of sample holders containing test samples of prosthetic devices is positioned between a distribution chamber and a return fluid chamber to form an integrated test chamber. A reciprocating linear drive motor operates a rolling bellows diaphragm to cyclically pressurize fluid within the test chamber and drive the pressurized fluid through the prosthetic devices being tested. The test chamber defines a return flow conduit in fluid communication with each of the sample holders, the return fluid chamber, and the distribution chamber. Compliance chambers and throttle valves associated with each of the sample holders regulate the pressure gradient and back pressure across the prosthetic devices being tested.

Abstract: An apparatus for pressure testing a pipe includes a frame supporting a mandrel, the mandrel being adapted for positioning within the pipe, and two sealing devices connected to the mandrel and adapted to seal opposite ends of the pipe to create an annular space between the mandrel, the pipe, and the sealing devices. The integrity of the pipe is tested by pressurizing the annular space and monitoring such pressure.

Abstract: A tool for assisting the leak testing of an enclosed volume is disclosed. The tool may comprise an outer seal defining inside its perimeter an attachment face of the tool. A vacuum port defined in the attachment face is configured to be fluidly coupled to a vacuum source. A nozzle disposed in the attachment face may be coupled to the test port, in fluid communication with the enclosed volume. A primary connection in fluid connection with the nozzle may be placed in fluid connection with the external conduit. A nozzle seal is disposed in the attachment face around the perimeter of the nozzle, such that when the nozzle is coupled to the test port, the nozzle is fluidly isolated from said vacuum port. A leak-test system incorporating at least one tool and a method for leak testing an enclosed volume using the tool are disclosed.

Abstract: A process is described for producing a clean gas, which is provided, in particular, for testing a pressurized construction component (100) for leaks, which process includes the steps of providing a liquefied gas mixture (1) which contains the clean gas (2) and at least one foreign gas (3) in a gas separation unit (20), enriching the clean gas (2), wherein the at least one foreign gas (3) is transferred to a surface region of the liquefied gas mixture (1), and taking off the enriched clean gas (2), wherein the enriched clean gas (2) flows out of a volume region of the gas separation unit (20) via a guide unit (22), and wherein a foreign gas barrier (23) is formed at the guide unit (22), using which the foreign gas (3) in the liquefied gas mixture (1) is passed out from an opening in the guide unit (22). A device for producing a clean gas, a noble-gas-free gas composition and a process for testing a construction component pressurized with a test gas for leaks are also described.

Abstract: A fluid separation system (10) for separating compounds of a sample fluid in a mobile phase comprises a detector (50) adapted to detect separated compounds by providing an optical stimulus signal to the sample fluid and receiving a response signal to the optical stimulus signal. The detector (50) comprises a light source (100) adapted to provide an output light beam (230) as the optical stimulus signal. The light source (100) comprises a plurality of light emitting elements (200, 200A, 200Z) each adapted to emit a light beam (210, 210A1, 210A2, 210Z1, 210Z2) having a respective wavelength, and a diffracting element (220). The plurality of light emitting elements (200, 200A, 200Z) are arranged that emitted light beams (210, 210A1, 210A2, 210Z1, 210Z2) impinging, on the diffracting element (220) are diffracted by the diffracting element (220) to form the output light beam (230).

Abstract: A testing machine includes a stand and a test device. The stand includes a base, box frame, a slide device driven to slide by a motor, and a control system controls the force applied on the test specimen. The test device is coupled at the slide device for performing various hardness tests consisting of Rockwell hardness test, Vickers hardness test, Brinell hardness test, micro-hardness test, and tension-compression test. The test device includes a force sensor and a data processing circuit converting an analog signal of the force sensor into digital data to interface with the control system.

Abstract: A fixture for measuring the resistance of a piston ring in a cylinder, comprising an elongate member having a first end and a second end and a central axis extending therebetween, and an expandable platform attached to the second end of the stem, the platform having a top surface facing towards the first end, the top surface being perpendicular to the central axis, the top surface including first, second and third points movable radially outward from the central axis, and methods of use thereof.

Abstract: An apparatus ascertains a contact area length of a vehicle tire. The apparatus has a transmission unit which has a resonator and which is set up to transmit a sensor signal at a defined frequency. A change in the frequency of the sensor signal on the basis of mechanical excitation of the resonator is indicative of a contact area length for the vehicle tire. Furthermore, the apparatus has a contact area length ascertainment unit which is set up to receive the sensor signal and to take the change in the frequency of the sensor signal as a basis for ascertaining the contact area length of the vehicle tire.

Abstract: A tire monitoring device may be used in conjunction with a tire monitoring system for a vehicle. The tire monitoring device includes a tire monitoring sensor unit having a state monitoring sensor monitoring a tire state, such as a tire pressure, and a first acceleration sensor and a second acceleration sensor respectively measuring accelerations in first and second directions on a plane perpendicular to a wheel axis, and a controller. The controller is configured to determine whether a wheel is on the left or right side of the vehicle on the basis of a relationship between alternating signals of the first acceleration sensor and the second acceleration sensor and determining whether or not a tire event has occurred with reference to a calculated value based on the accelerations measured by the first acceleration sensor and the second acceleration sensor.

Abstract: This invention relates to well logging instrumentation, specifically, to measuring devices which use an advanced slip-free borehole contact interaction mechanism. A measuring probe for an oil and gas wells and/or casings includes a main body and at least one robotic arm, fixed to the main body and provided with a polygonal rotating contact tip at the arm's free end. The measuring probe is used as a measuring device and provides a successive slip-free continuous contact between the rotating surface of the tip and the inner wall of the oil & gas wells and/or casings. The tip is furnished with at least one sensor that picks up the geological formations response to a signal emitted directly to the geological formation via the points of contact.

Abstract: A method, and apparatus therefor, for detecting the presence of a target amount of gas flowing within a conduit, including: providing a heating element in operational contact with the conduit; heating at least one of the conduit or the gas; measuring the temperature of at least one of the heating element, the conduit or the gas; comparing the measured temperature of at least one of the heating element, the conduit or the gas to data relating to a target temperature; controlling and measuring the amount of energy consumed by the heating element in order to maintain the target temperature; correlating the amount of energy consumed by the heating element in order to maintain the target temperature with an amount of gas flowing within the conduit; and determining whether the amount of gas flowing within the conduit is at least the target amount of gas flowing within the conduit.

Abstract: A system for detecting a presence of a liquid within a liquid receptacle includes a liquid level sensor configured to be positioned within the liquid receptacle. The liquid level sensor includes a helical probe. The system may also include a transducer operatively connected to the liquid level sensor. The transducer is operable to generate and receive wave energy with respect to the liquid level sensor.

Abstract: A piezoresistive pressure sensor that uses a protective gel to protect the piezoresistive device is susceptible to lead wire failure by vibration-induced waves in the protective gel. Such waves can be reduced and the device made more robust by the use of three-dimensional structures in the gel, which are configured to reduce and/or re-direct vibration-induced pressure waves in the gel. The structures are referred to as “breakwaters” in that they protect lead wires and lead wire connections from wave fronts and the damage that wave-induced pressure on the lead wires causes.

Abstract: A waterproof sensing device including a base, a rear cover, a sensing module, and a lens is provided. The rear cover is selectively rotatably disposed on the base, wherein the rear cover has a side wall to enclose an accommodation space. The sensing module is disposed in the accommodation space. The lens covers the rear cover on the edge of the side wall of the rear cover and seals the accommodation space. A waterproof treatment is disposed between the lens and the edge of the side wall, such that moisture is prevented from intruding into the accommodation space to cause damage, no matter where the sensing device is disposed.

Abstract: A yaw rate sensor having a substrate, a first Coriolis element and a second Coriolis element is described, the first Coriolis element being excitable to a first vibration by first excitation means, and the second Coriolis element being excitable to a second vibration by second excitation means, and the first and second Coriolis elements being connected to one another by a spring structure, and the spring structure also including at least one rocker structure, the rocker structure being anchored on the substrate by at least one spring element.

Abstract: In one embodiment, an accelerometer includes a suspension frame, a proof mass, and a plurality of flexures suspending the proof mass from the suspension frame. The flexures allow the proof mass to deflect in response to an acceleration along a sensitive axis of the accelerometer. Each flexure exhibits an initial spring rate along the sensitive axis of substantially zero.

Abstract: In order to provide an inertial sensor such as an acceleration sensor which can be downsized and in which a high SNR can be obtained as having a plurality of measurement ranges, an inertial sensor for detecting an inertial force of acceleration based on an electrostatic capacitance change of a detecting unit includes a plurality of detecting units D1 to D4 each having a different sensitivity defined by a ratio between an applied inertial force and physical quantity generated from each of the detecting units to provide the plurality of measurement ranges. Alternatively, when the inertial sensor includes N (a natural number of 2 or larger) pieces of movable units 6a to 6c, (N+1) or more types of measurement ranges are provided.

Abstract: The different advantageous embodiments provide a transducer unit, a testing system, and a method for testing a structure. The transducer unit comprises a first segment configured to generate a first electrical signal in response to detecting a plurality of waves propagating in a structure. The transducer unit also comprises a second segment configured to generate a second electrical signal in response to detecting the plurality of waves propagating in the structure.

Abstract: The invention relates to a method for processing signals which are generated by the reflection of ultrasonic waves by defects in the surface of objects during the non-destructive testing of objects such as pipes, bars, sheet metal, or uniform and complex carbon-fiber components. Said method comprises the following steps: emission of a complete wavefront onto at least one test section of the object, using a plurality of independent emission elements; receiving a wave reflected by the structure of the object by means of a plurality of receiver elements that are independent of one another; digitalization of the signals received by the receiver elements in digitizing steps; continuous modification of delay values and/or the number of receiver elements for each digitalization step (on-the-fly).

Abstract: An apparatus for performing ultrasonic inspection of an object, during one measurement on the object, triggers a sequence of excitations of the probe system and receives a sequence of substantially identical echo signals reflected from the object, and further scales each echo signal to different degrees to increase and extend the dynamic range of the echo signals. An A/D converter is then used to digitize the scaled signal sequentially in a manner which dispenses the need for using numerous A/D converters and the associated filters. The digitized signal samples are then combined to produce a single digital output in a manner that is not over-flowed and with desirable resolution. A sequence of successive acquisitions of the scaled signal with the highest sensitivity are averaged to reduce system noise.

Abstract: A method and apparatus of recognizing the presence of a passenger in front of a door of a transit vehicle comprises directing an ultrasound transmitter/receiver at a volume of space adjacent the door, emitting an ultrasound pulse into the empty volume, recording and integrating intensity of the echoes and storing the integrated value as a standard value, repeatedly emitting an ultrasound pulse into the volume, and comparing the integrated values to the standard value.