Abstract: A test fixture for testing firearms or ammunition includes a base, a block, and a firing pin. The base has a lateral channel defining a front upright and a rear upright. The front upright is configured to support a firearm barrel. The block is rotatable within the lateral channel between an open position and a closed position. The open position provides user access to the firearm barrel. The firing pin is housed in the block. The closed position of the block aligns the firing pin with the firearm barrel.

Abstract: A glass article includes a first surface, a second surface opposed to the first surface, a first compressive region extending from the first surface to a first compression depth, a second compressive region extending from the second surface to a second compression depth and a tensile region between the first compression depth and the second compression depth. A stress profile of the first compressive region includes a first segment located between the first surface and a first transition point and a second segment located between the first transition point and the first compression depth. A depth from the first surface to the first transition point ranges from 6.1 ?m to 8.1 ?m. A compressive stress at the first transition point ranges from 207 MPa to 254 MPa. A stress-depth ratio of the first transition point ranges from 28 MPa/?m to 35 MPa/?m.

Abstract: Disclosed is an artificial intelligence apparatus that includes: a sensing unit that includes a gyroscope sensor and an acceleration sensor; an output unit that outputs information; and a processor that acquires a resultant value output from a deep learning model by inputting data acquired from the gyroscope sensor and the acceleration sensor into the deep learning model, performs self-diagnosis when the resultant value shows a shock requiring self-diagnosis, and controls the output unit to output a result of the self diagnosis, in which the deep learning model is a neural network having an adjusted weight by being trained using whether a shock is a shock requiring the self-diagnosis as a resultant value and sensing values of the gyroscope sensor and the acceleration sensor as input values.

Abstract: In one aspect, a method for conducting a drop test of an article with one or more target parameters can include dropping the article and a drop carriage of a drop tower from an initial height with respect to a base of the drop tower for an initial drop test. The article can be coupled to the drop carriage. The method can include detecting accelerometer data with respect to the article for an initial impact between the drop carriage and the base of the drop tower; determining a constant energy balance curve; determining, based on the constant energy balance curve and a target pulse duration, a target complex stiffness and/or a target total weight; adjusting, based on the target complex stiffness or the target total weight, the complex stiffness and/or the total weight for a subsequent drop test; and conducting the subsequent drop test.

Abstract: The present invention is directed to an automatic impact inducing device for inducing an impact on an object wherein, in particular on a machine tool.

Abstract: An impact test device includes a control rail and a carriage assembly moveable along the control rail in a plurality of directions including a first direction and a second direction opposite the first direction. The carriage assembly includes a catch configured to engage the control rail to control movement of the carriage assembly. Movement of the carriage assembly in the first direction urges the catch to disengage from the control rail, and movement of the carriage assembly in the second direction urges the catch to engage the control rail.

Abstract: In a rubber friction test method of measuring a friction coefficient of a rubber test specimen by relatively moving the rubber test specimen and a test road surface in a state in which the rubber test specimen is pressed to the test road surface by applying a load, the method includes a step of measuring a resistance force acting on the rubber test specimen while accelerating or decelerating a speed of the relative movement, and a step of calculating the friction coefficient based on the applied load and the measured resistance force.

Abstract: Packages are delivered from a drone to an upper end of an elongate shaft which in a preferred embodiment has the appearance of a chimney and which can be coupled to a residential structure or provided as a standalone structure. A hollow column extends from an upper end down to a lower end. A chute can allow for a package to pass from the upper end to the lower end or a platform used to carry a package from the upper end to the lower end. Preferably a movable cover selectively overlies the upper end to close off the upper end when not in use and to allow the upper end to be exposed for access to packages from drones. A locker can be provided adjacent to the lower end to provide secure access to packages having been delivered through the interface.

Abstract: A one-piece test apparatus for steel furrings and accessories for building comprises support legs, a rectangular frame on the support legs, and a first hoisting motor, a load-carrying hoisting motor, a second and a third hoisting motor sequentially arranged above the rectangular frame. The overall frame is raised by means of the cooperation of long support legs with the frame, and motors are used for hoisting a wall furring and impact sand bags, so that a tester can mount a dial indicator conveniently and does not need to perform operation and reading by lying on the floor.

Abstract: Methods and apparatuses are provided for evaluating or testing stiction in Microelectromechanical Systems (MEMS) devices utilizing a mechanized shock pulse generation approach. In one embodiment, the method includes the step or process of loading a MEMS device, such as a multi-axis MEMS accelerometer, into a socket provided on a Device-Under-Test (DUT) board. After loading the MEMS device into the socket, a series of controlled shock pulses is generated and transmitted through the MEMS device utilizing a mechanized test apparatus. The mechanized test apparatus may, for example, repeatedly move the DUT board over a predefined motion path to generate the controlled shock pulses. In certain cases, transverse vibrations may also be directed through the tested MEMS device in conjunction with the shock pulses. An output of the MEMS device is then monitored to determine whether stiction of the MEMS device occurs during each of the series of controlled shock pulses.

Abstract: A drop ball test fixture includes a bracket, first stoppers and connecting components. The bracket has bearing surfaces for bearing edges of a panel and to position the panel in a direction parallel to the bearing surfaces. At least part of each of the first stoppers is located above corresponding one of the bearing surfaces. Each connecting component includes a guide rod, a guide groove and a second stopper. The guide groove is formed on corresponding one of the first stoppers. One end of each of the guide rod is connected to the bracket while the other end thereof passes through the guide groove. Connecting structures are provided at different heights of the guide rod, and the second stopper is matched with and connected to corresponding one of the connecting structures at different heights above the guide groove so as to stop the upward movement of the first stopper.

Abstract: An impact fatigue device includes a striker rod assembly configured to reciprocally move between an upstream position and a downstream position. The striker rod assembly includes a striker rod slidingly mounted on a support member and a trigger located upstream of the striker rod and adapted to move downstream to engage the striker rod and propel the striker rod downstream. An actuator assembly is located upstream of the striker rod assembly. The actuator assembly is configured to releasably engage the trigger and to translate the trigger upstream. A reset mechanism is configured to releasably engage the striker rod and to move the striker rod from the downstream position to the upstream position. A method of operating the impact fatigue device is also disclosed.

Abstract: A drop impact tester comprises a holder configured to hold a test piece and release the test piece such that the test piece drops in freefall; an impact surface disposed under the holder such that the test piece dropped from the holder hits the impact surface; and a drop angle measurement device configured to measure a drop angle which is a value correlated with an angle between a major surface of the dropped test piece and a reference plane. The tester further comprises an impact measurement device configured to move the impact surface from its first posing state to its second posing state to adjust an angle of the impact surface with respect to the reference plane based on the drop angle. The impact measurement device is configured to measure a drop impact applied to the impact surface by the dropped test piece or another test piece.

Abstract: A test jig for an exterior door handle of a vehicle includes a first rotating shaft rotatably mounted on a vertical frame which is perpendicular to a horizontal frame that is supported on the ground. First plates are attached to both ends of the first rotating shaft to concurrently rotate with the first rotating shaft about a strike object by an elastic restoring force. A second rotating shaft is rotatably connected between the first plates. A second plate is attached to the second rotating shaft to concurrently rotate with the second rotating shaft about the strike object by the elastic restoring force when a handle is mounted.

Abstract: Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to an impact above a threshold level. In particular embodiments, the infusion pump system can be equipped with an impact detection system that can sense when an impact above the threshold level has occurred to the pump device, which thereby enables the infusion pump system to initiate appropriate patient safety countermeasures.

Abstract: A method and a device for the execution of the method for the reproduction of an impact event of a projectile, with any ratio of energy and impulse, wherein a feed rate of an impress element is controlled by taking account of an alteration in velocity that is proportional to the quotient of a resistance force and a freely selected projective mass.

Abstract: A drop test apparatus includes a frame, a first blocking board, a second blocking board, two first pivot poles and two second pivot poles. The frame includes a base board and a holding board above the base board for holding a tested product. The first blocking board is located between the base board and the holding board for placing the tested product when the tested product is dropped from the holding board. The second blocking board is secured to the base board. The two first pivot holes and the second two pivot poles are connected the first blocking board with the second blocking board, and a distance between the first blocking board and the second support is adjusted.

Abstract: An Automated Multi-Orientation Drop Test apparatus includes a clamping mechanism for clamping an object to be test dropped. The Automated Multi-Orientation Drop Test apparatus includes a pneumatic lifting mechanism interconnected to the clamping mechanism. The Automated Multi-Orientation Drop Test apparatus includes a guide plate for guiding the object in freefall in a certain orientation such that the object impacts a base in the desired axial orientation.

Abstract: An electronic apparatus includes: a recording unit configured to access a recording medium using a head; an acceleration sensor that detects acceleration generated in the electronic apparatus; and a control unit configured to write, in the recording medium or a predetermined memory, detection data indicating a result of the detection by the acceleration sensor or a state of the electronic apparatus detected on the basis of the detection result and retracting, when the detection result satisfies a drop condition for the electronic apparatus defined in advance, the head of the recording unit to a predetermined retraction position.

Abstract: The present invention provides a case for an impact detector, including: a front case; a weight to move from an initial position when a detection target of the impact detector inclines more than a predetermined angle; a first rear case to be covered by the front case, including a guide member set at a first inclination angle, through which the weight moves; a second rear case to be covered by the front case, including a guide member set at a second inclination angle different from the first inclination angle, through which the weight moves; and a resistance reducer to reduce moving resistance of the weight. In the optimal case for the impact detector, the front case is used in common for the first rear case and the second rear case, the weight can move smoothly in either case, and the impact can be easily detected.

Abstract: An object is to prevent a bottle from being inclined when a weight is dropped, and to prevent cushion members from moving due to the impact applied when the bottle is inclined, thereby enabling efficient and correct measurement of the water hammer strength. An apparatus for testing the water hammer strength includes holding element that holds bottle filled with content and sealed with a cap at a position above the center of gravity thereof so as to suspend the bottle in the air, and the holding element is placed on cushion members placed on a fixing stage. A weight is then dropped onto the cap to measure the water hammer strength. The cushion members are compressed and deformed in advance using a compression element for forcing the holding element downward to solve the above-described problems.

Abstract: A drop test device includes a suspension frame, a delay roller which is placed and mounted on the suspension frame, and at least one suspension cable, a first end of which is connected in a stationary manner to an attachment point on the outer surface of the delay roller and a second end of which includes a mounting which can be releasably or fixedly connected to a drop object.

Abstract: Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to an impact above a threshold level. In particular embodiments, the infusion pump system can be equipped with an impact detection system that can sense when an impact above the threshold level has occurred to the pump device, which thereby enables the infusion pump system to initiate appropriate patient safety countermeasures.

Abstract: Embodiments are directed to strengthened glass articles comprising a thickness t?1 mm (1000 ?m), an inner region under a central tension CT (in MPa), and at least one compressive stress layer adjacent the inner region and extending within the strengthened glass article from a surface of the strengthened glass article to a depth of layer DOL (in ?m), wherein the strengthened glass article is under a compressive stress at the surface CSs (in MPa), wherein the strengthened glass article is an alkali aluminosilicate glass article comprising 0-5 mol % Li2O, and at least 3 mol % Al2O3, and wherein the DOL?70 ?m, and a CSs/DOL ratio?2.5 MPa/?m.

Abstract: An electronic device may contain electrical components mounted on one or more substrates such as printed circuit boards. During a drop event, the printed circuit boards and components may be subjected to stresses. Strain gauges may be formed from metal traces embedded within dielectric layers in the printed circuit boards. The strain gauges may be used to make stress measurements at various locations on the boards. Stress data may be collected in response to data from an accelerometer indicating that the device has been dropped. Stress data collection may be halted in response to determining that the device has struck an external surface. Impact may be detected using accelerometer data, strain gauge output, or other sensor data. Stress data may be analyzed by the electronic device or external equipment.

Abstract: Detecting an impact of an electronic device, such as a data storage device (DSD). An acceleration input is received indicating an acceleration of the electronic device and it is determined whether an acceleration change value based on the acceleration input is greater than an absolute threshold. If so, an acceleration change ratio is calculated using the acceleration change value and an average of acceleration change values. The acceleration change ratio is compared to a relative threshold and it is determined that an impact of the electronic device has been detected if the acceleration change ratio is greater than the relative threshold.

Abstract: A method for determining allowable bearing pressures of a steel footing on variable subsurface materials whether native soils, rock, or manmade construction material is disclosed. The method continuously measures vertical displacement by an optical technique of a dismantable steel footing under the impact of a free falling steel drop weight. The load pulse of the drop weight is measured by means of a load cell.

Abstract: A preform superabrasive cutter and a method of testing the preform superabrasive cutter are disclosed. The preform superabrasive cutter may comprise a superabrasive volume, metal carbide, and a slop. The superabrasive volume may have a top surface and superabrasive particles. The metal carbide may be attached to the superabrasive volume via an interface between the superabrasive volume and the metal carbide. The slope may be situated from the top surface of the superabrasive volume toward the metal carbide, wherein the slope is at an angle from about 5 to about 18 degrees relative to a longitudinal axis of the preform superabrasive cutter.

Abstract: A drop test apparatus includes a frame, a first blocking board, a second blocking board, two first pivot poles and two second pivot poles. The frame includes a base board and a holding board above the base board for holding a tested product. The first blocking board is located between the base board and the holding board for placing the tested product when the tested product is dropped from the holding board. The second blocking board is secured to the base board. The two first pivot holes and the second two pivot poles are connected the first blocking board with the second blocking board, and a distance between the first blocking board and the second support is adjusted.

Abstract: A method for detecting the fall of an object includes: acquiring a plurality of time-varying accelerations associated with a movement of said object; computing a plurality of respective velocities and displacements in the direction of gravity, based on the plurality of time-varying accelerations; determining lead time and return time of the movement, based on the plurality of accelerations, velocities and displacements, wherein the lead time equals a time interval from an original point of the movement to an extreme point of the movement, and the return time equals a time interval from the extreme point of the movement to a final point of the movement; and determining whether the fall of said object occurs, based on whether a peak value of the velocities is larger than a predefined threshold value and whether the lead time is longer than the return time.

Abstract: An object is to provide a peel tester that continuously detects the characteristics of an adhesive tape from the moment an impact is applied to an adherend until the adherend is peeled, and a new method for evaluating the impact peel characteristics of an adhesive tape, which enables quantitative evaluation for the impact peel characteristics by using the test result obtained by the peel tester. Provided is a peel tester 1 with a main body 2, to which an adherend I is to be adhered via an adhesive tape III, for performing a peel test by an impact applied to the adherend I, which includes: a load detection device 6 that detects change in load applied to the adhesive tape I until the adherend I is peeled off from the main body 2; and a displacement detection device 7 that detects change in moving distance of the adherend I until the adherend I is peeled off from the main body 2.

Abstract: A chemically strengthened glass is disposed on a base, and an impacting object is dropped from above in a state where one surface of the chemically strengthened glass is in contact with an abrasive surface of a sandpaper containing an abrasive having a size of not smaller than a depth of a compressive stress layer.

Abstract: A fixture includes a base, a carrier plate, a number of pressing strips, and a cover. The base defines a base receiving chamber. The carrier plate is received in the base receiving chamber and defines a number of receiving portions in a surface opposite to the base, each receiving portion is configured for receiving a camera module, the receiving portions being arranged in a plurality of lines, the carrier plate defines a spacing portion between each two adjacent receiving portions in the same line. Each pressing strip is pressed into the spacing portions associated with one of the lines of the receiving portions to press the camera modules in the lines of the receiving portions. The cover is fixed to the base and covers the carrier plate.

Abstract: Test method for structures, e.g., such as carriers and/or catalysts. The methods may be used to select the carriers and/or catalysts for future use. Carriers and catalysts so selected, and processes making use of these, are also provided.

Abstract: The invention relates to a machine for testing cushioning material for packaging, which improves the test method and performs a more precise characterization of cushioning for packaging. The machine is formed by: a load arm (1); a lift motor (2) on the upper part thereof; several guides that connect (i) a rigid platform (6) for positioning the sample to be tested, replaceable by a load cell (6?), and (ii) an impact platform comprising sensors (7) for monitoring the position thereof and measuring acceleration during impact; a spindle (4) for moving the load arm; and, on the lower part thereof, a seismic mass (5) for reducing the transmission of the impact.

Abstract: Field testing apparatus includes load device with drop weight for generating force impact and load stamp for introducing the force impact into asphalt. Load stamp is guided in a guide element. The load stamp is guided with its stamp face resting flat on the asphalt surface for testing. Time dependence of acceleration of load stamp is measured with acceleration sensor and movement of the load stamp is measured with displacement sensor. When impact force generated by the device is applied, the load stamp penetrates into the asphalt for testing. This penetration has a dynamic and a static depth (sdyn, sst). Load stamp is subjected to force impacts: For each force impact, time dependence of acceleration of load stamp and movement of load stamp are measured and temporarily stored, until static penetration depth (sst) is smaller than or equal to the predetermined minimum static penetration depth (sstmin).

Abstract: A configuration capable of suppressing a variation in the measurement result of a falling body viscometer is proposed. Provided is a method of sending a falling body of a falling body viscometer when sending the falling body loaded in a loading unit of a loading holder into a measured substance, in which the falling body of the falling body viscometer is sent out in a manner such that the falling body is sent out from the loading unit by pressing the falling body using an extruding pin, thereby suppressing a variation in the measurement result.

Abstract: A method of measuring drop impact at an electronic device includes detecting a fall based on signals from drop detection sensor of the electronic device, receiving an output from a piezoelectric sensor in response to detecting the fall, and storing drop data based on the output from the piezoelectric sensor in a memory at the electronic device.

Abstract: A mobile terminal including a wireless communication unit configured to wirelessly communicate with at least one other terminal; a touchscreen configured to display information and receive touch inputs; a sensor unit configured to detect a gravity characteristic of the mobile terminal; and a controller configured to output a user-settable gravity sensitivity threshold option for setting a gravity detected sensitivity of the sensor unit, to receive a selection signal indicating a selection of a first gravity sensitivity threshold, to determine the mobile terminal is in a state of falling when the detected gravity characteristic of the mobile terminal is less than or equal to the selected first gravity sensitivity threshold, and to automatically execute a predetermined function mapped to the determined falling state.

Abstract: A drop test apparatus includes a base panel, at least one height adjustment member attached to the base panel, and at least one angle adjustment member pivotally attached to the at least one height adjustment member. The at least one height adjustment member has a portion protruding upward from the base panel. A height of the portion is variable. The at least one angle adjustment member is configured for supporting a device thereon and capable of rotating to different angles.

Abstract: A drop test apparatus performs a drop test on a product. The drop test apparatus includes a drop control module and a support module. The drop control module includes a bottom plate and a support beam substantially perpendicularly attached to the bottom plate. The support module is attached at a predetermined height to the support beam and includes a lever for detecting whether the product is placed in a desired position. A support panel is disposed at a first end of the lever for supporting the product. A second end of the lever is under a predetermined force for maintaining the lever in a balanced state when the product is placed in the desired position.

Abstract: A drop test device for testing the strength of a product includes an operating platform and a hanging mechanism. The operating platform includes a bottom board, a pillar substantially perpendicularly connected to the bottom board and a support member rotatably secured on the pillar. The hanging mechanism is mounted to the pillar, and includes a clamp member for positioning the product. The product is sandwiched by the clamp member so an arris of the product abuts the support member. The support plate is rotated away from the product, so the product can be disengaged from the clamp member and dropped towards the bottom board.

Abstract: The object of the invention is a device for in-situ determining the compactness of grainy material layers, especially determining the compactness of material layers containing equally solid part, liquid and gaseous phases e.g. soils, that consists of a guide body, a loading disc connected with the guide body and a dropping-weight movable relating the loading disc along the guide body. The characteric feature of the device is that an indicator figure (20) is adjusted to a dropping weight (13), the indicator figure (20) has a guide organ (21), wherein one of the guide organs (21) and the guide body (11) are at least periodically in a connection with each other restricting the direction of movement and the guide body (11) is complemented with a length measuring unit (30).

Abstract: A drop test device for testing a corner portion of a work piece, includes a bottom board, a support pillar, and a hanging mechanism. The support pillar is mounted on the bottom board. The hanging mechanism is mounted on the support pillar and is located above the bottom board. The hanging mechanism includes a support member. The support member includes a triangle base. Angles and sides of the triangle base hold the work piece thereon to have a corner of the work piece directed towards the bottom board.

Abstract: The invention relates to a fall detection system, for detecting human fall incidents. The detection system comprises a sensor module to be worn by a user, for collecting motion data of his body, for instance acceleration data; first evaluation logic for identifying a potential fall incident on the basis of an impact observed in the acceleration data; and second evaluation logic for verifying that the sensor module is actually worn by the user, at least around the time of said impact, to prevent the system from raising an alarm if only the sensor module has fallen. The second evaluation logic may comprise free fall detection means for evaluating the acceleration data on characteristics which are typical for a free falling object, such as one or more full rotation and/or a free falling phase, during which the magnitude of the acceleration data is relatively stable and small.

Abstract: The present invention provides a method for testing the water hammer strength of a glass bottle. The method includes the steps of providing a holding device on a fixing stage with a cushion material therebetween, holding the bottle filled with a content and fitted with a cap with the holding device at a position above the center of gravity thereof and suspending the bottle in the air, and dropping a weight directly or indirectly onto the cap to apply an impact to the bottle. The weight is repeatedly dropped while gradually increasing a drop energy thereof. The water hammer strength of the bottle is tested based on the drop energy of the weight at the time when the bottle is damaged.

Abstract: An electronic device is disclosed comprising an acceleration sensor operable to generate an acceleration signal, and a free fall detector operable to detect a free fall event in response to the acceleration signal. A frequency response of the acceleration signal is measured, and the free fall detector is disabled when a magnitude of the frequency response within one of a plurality of frequency bands exceeds a threshold, wherein each frequency band corresponds to one of a plurality of normal operating modes.

Abstract: An object is to prevent a bottle from being inclined when a weight 5 is dropped and to prevent cushion members 3 from moving due to the impact applied when the bottle is inclined, thereby enabling efficient and correct measurement of the water hammer strength. In an apparatus for testing the water hammer strength in which holding means 4 that holds bottle 1 filled with content and sealed with a cap at a position above the center of gravity thereof so as to suspend the bottle in the air is placed on cushion members 3 placed on a fixing stage 2 and in which a weight 5 is dropped onto the cap to measure the water hammer strength, the cushion members 3 are compressed and deformed in advance using push-down means for forcing the holding means 4 downward to solve the above-described problems.

Abstract: An impact detector includes a circular weight, a case containing the weight, in which a transition path for the weight is formed, a planar elastic member extending in the case with a first end oriented in a direction in which the weight move upon an impact in a first direction, a fixing member fixing the planar member to the case. The planar elastic member includes a folded portion disposed on a second end of the planar elastic member, and a first arm and a second arm both extending from the folded portion. An end portion of the first arm holds the weight at an initial position, and the first arm deforms to release the weight upon the impact in the first direction. The fixing member includes a sandwiching portion sandwiching the folded portion and a contact portion in contact with both the first arm and the second arm.

Abstract: An impact testing device for a test subject includes a supporting member, a suspending arm with an end fixed on the supporting member, and the other end of the suspending arm being a free end, and a fixing mechanism fixed on the suspending arm adjacent to the free end of the suspending arm to fix the test subject.