Abstract: A novel RFID tag-bending test apparatus and a related method of using the novel RFID tag-bending test apparatus are disclosed. In one embodiment of the invention, the novel RFID tag-bending test apparatus can place a plurality of RFID tags in corresponding tag holding clips on the novel RFID tag-bending test apparatus to execute a bending test sequence along a particular bending axis for each RFID tag. The bending test sequence can assist identifying defective RFID tags which cannot overcome external bending pressures asserted by the novel RFID tag-bending test apparatus. By excluding these defective RFID tags from a commercial shipment of RFID tags to customers, a manufacturer of RFID tags may be able to reduce a rate of premature RFID tag failures due to external bending pressures in real-life applications of RFID tags, thereby achieving a higher quality assurance and reliability of RFID tags.

Abstract: A test apparatus includes a first surface configured to apply a linear force in two directions and a first attachment assembly configured to secure a first end of a cable to the first surface. The first attachment assembly is further configured to permit two degrees of rotational freedom. The test apparatus also includes a second surface, opposite the first surface, and a second attachment assembly configured to secure a second end of the cable to the second surface. The apparatus facilitates testing of a bending force and a kink force associated with the cable.

Abstract: Methods, devices, and systems relating to a sensing device are disclosed. A device may comprise a structure including a first surface and a second, opposite surface, wherein the structure comprises one or more segments. Further, the device may include a plurality of sensors disposed on the structure, wherein each segment of the one or more segments comprises a first sensor of the plurality of sensors coupled to the first surface and an associated second sensor of the plurality of sensors coupled to the second surface. Moreover, each sensor of the plurality of sensors may be configured to measure a strain exhibited on an adjacent surface of the structure at an associated segment of the one or more segments.

Abstract: A height adjustment structure of printed circuit board and the adjustment method thereof are disclosed. The height adjustment structure includes an electronic device main body, a circuit board body and an adjusting component. The electronic device main body includes at least one fixing part. The circuit board body is disposed on a surface of the electronic device main body at which the fixing part is located. The circuit board body includes at least one stuck part, wherein the stuck part is disposed along the edge of the circuit board body and corresponds to the fixing part; further, the stuck part recesses inwards into the circuit board body to form a U shape. One end of the adjusting component movably penetrates the fixing part and being screw locked thereon, and another end of the adjusting component is embedded to the stuck part.

Abstract: An arcuate metal element for detecting a rotary force and generating a deformation in response thereto.

Abstract: An improved test fixture to evaluate thin composite laminates commonly used in deployable space structures. The fixture is designed to impart a pure moment into the coupon, a necessary improvement to prior test methods where results are obtained by fitting material properties in a nonlinear structural analysis of the test. Fixture mechanics allow for direct calculation of the coupon flexural modulus and allowable flexural strain based on two key measurements, fixture displacement and applied load.

Abstract: The invention provides a test apparatus for providing axial stresses in a structure, comprising a first set of formations for abutting a first surface of the structure at a first plurality of locations, a second set of formations for abutting a second surface of the structure at a second plurality of locations, and a force actuator, and wherein each set of formations comprises at least three formations and wherein at least two formations in each set of formations are aligned with a notional alignment line along the structure and at least one formation in each set of formations is out of alignment along the structure with said notional alignment line, such that when the force actuator applies a force, loads are applied at different locations, causing the structure to bend biaxially and thereby providing biaxial stresses in the structure.

Abstract: A method of testing metal samples is provided to simulate stretch flanging of trimmed surfaces. A sample having planar sides and a sidewall extending between the planar sides is placed in a fixture so that the planar sides are confined. The sidewall of the sample is bent about a curved surface while restricting buckling out of a planar area. One testing machine is disclosed in which a test specimen is clamped in a die with a nesting slot while a punch bends a sample against a forming surface that has a radius. In another testing machine, a mandrel and clamping element engage the planar sides of the sample while first and second bending members engage first and second end portions to bend one of the sidewalls of the sample about the mandrel.

Abstract: A test apparatus and method for determining at least one characteristic of a test specimen. An exemplary test specimen is a shape memory metal alloy and an exemplary characteristic is a transformation temperature of the shape memory metal alloy. The test apparatus may include a chiller unit including a tank containing a chilling medium, such as isopropyl alcohol or denatured alcohol, which holds a removable fixture tray that can accommodate up to ten specimens, or more. The fixture tray holds the test specimens in an initial deformed condition, and the cooling medium may be gradually heated to induce transformation of the specimens. The test apparatus may include a vision-based optical system which includes a camera that tracks the specimens within its field of view.

Abstract: Provided is a bending test apparatus of a flexible device. The bending test apparatus includes: first and second electrode parts disposed in a horizontal direction and loading a flexible device horizontally, wherein the first electrode part is movable in the horizontal direction and the second electrode part is fixed so that the first electrode part horizontally moves toward the second electrode part to apply mechanical stress of the horizontal direction to the flexible device.

Abstract: Provided is a method for testing adhesion. The method includes forming thin films on a substrate; attaching an elastic plate to the substrate, wherein the elastic plate has a larger elastic coefficient than the substrate; and performing an adhesion test on the thin films using an adhesion test apparatus.

Abstract: An arrangement of elements which are used to restrain and deflect a pipe specimen to a prescribed form with precisely controlled loads. A rigid frame includes a movable pipe bending form to which one end of a pipe specimen is connected and a rotating table to which the second end of the pipe specimen is connected. Means for assessing the drive torque used to draw the pipe specimen over the pipe bending form is provided in the form of a load cell. The rotating table is used in combination with a travelling pipe end truck foundation to generate a bending moment in the pipe specimen in the same plane as the pipe specimen is being bent by the pipe bending form. By the use of precise loads on the pipe specimen, computer analysis of the simulated reeling of the given pipe construction will produce predictions of the reeling tension, shear, and bending moment in the pipe at the point of the travelling pipe end as this point on the pipe approaches contact with the reel.

Abstract: The present application provides a stacking tray for use with a number of products. The stacking tray may include a floor, a wall extending from the floor, and a subpanel. The subpanel may extend from the wall at an angle towards the floor.

Abstract: A novel RFID tag-bending test apparatus and a related method of using the novel RFID tag-bending test apparatus are disclosed. In one embodiment of the invention, the novel RFID tag-bending test apparatus can place a plurality of RFID tags in corresponding tag holding clips on the novel RFID tag-bending test apparatus to execute a bending test sequence along a particular bending axis for each RFID tag. The bending test sequence can assist identifying defective RFID tags which cannot overcome external bending pressures asserted by the novel RFID tag-bending test apparatus. By excluding these defective RFID tags from a commercial shipment of RFID tags to customers, a manufacturer of RFID tags may be able to reduce a rate of premature RFID tag failures due to external bending pressures in real-life applications of RFID tags, thereby achieving a higher quality assurance and reliability of RFID tags.

Abstract: A method of constructing a sensor includes depositing a first material in a predetermined arrangement to form a structure. The depositing results in at least one void occurring within the structure. The method further includes depositing a second material within the voids. The second material may have electrical properties that vary according to deformation of the second material. The method also includes providing electrical access to the second material to enable observation of the one or more electrical properties. A sensor includes a structure that has one or more voids distributed within the structure. The sensor also includes a material deposited within the one or more voids. The material may be characterized by one or more electrical properties such as piezoresistivity. The sensor includes a first contact electrically coupled to a first location on the material, and a second contact electrically coupled to a second location on the material.

Abstract: A fabricating method and a testing method of a semiconductor device and a mechanical integrity testing apparatus are provided. An object includes a wafer, an insulating layer, and a plurality of conductive posts is provided. A surface of the wafer has a plurality of first blind holes outside chip regions and a plurality of second blind holes inside the chip regions. The insulating layer is between the conductive posts and the walls of the first blind holes and between the conductive posts and the walls of the second blind holes. A mechanical integrity test is performed to test a binding strength between the insulating layer, the conductive posts, and the walls of the first blind holes. The conductive posts in the chip regions are electrically connected to an element after the conductive posts in the first blind holes are qualified in the mechanical integrity test.

Abstract: A work holder capable of measuring the amount of distortion occurring in a part as the part is machined, processed, treated, or otherwise operated upon and methods of using the same for quality control and process monitoring purposes. Indirect measurement of the distortion occurring in the part eliminates the need to individually strain gauge each part.

Abstract: A bend test method includes bending a flip chip device into a bent configuration, heating the flip chip device, and inspecting the flip chip device for failure. The bend test method is completed in a relatively short amount of time, e.g., within one to three days. Thus, appropriate failure modes in flip chip devices are created in an accelerated manner so that reliability assessment of various flip chip device designs, materials, and process options can be completed in a few days instead of a few months. This greatly reduced development cycle time typically results in a larger market share for new flip chip device products.

Abstract: An arrangement of elements which are used to restrain and deflect a pipe specimen to a prescribed form with precisely controlled loads. A rigid frame includes a movable pipe bending form to which one end of a pipe specimen is connected and a rotating table to which the second end of the pipe specimen is connected. Means for assessing the drive torque used to draw the pipe specimen over the pipe bending form is provided in the form of a load cell. The rotating table is used in combination with a travelling pipe end truck foundation to generate a bending moment in the pipe specimen in the same plane as the pipe specimen is being bent by the pipe bending form. By the use of precise loads on the pipe specimen, computer analysis of the simulated reeling of the given pipe construction will produce predictions of the reeling tension, shear, and bending moment in the pipe at the point of the travelling pipe end as this point on the pipe approaches contact with the reel.

Abstract: The present invention provides an apparatus and method for non-destructive measurement of bending stiffness of a gas diffusion layer (GDL) for a fuel cell by measuring a sagging length of a GDL sample, which can be used for a fuel cell, without damaging or destroying the GDL sample.

Abstract: Provided is a bending test apparatus for flexible substrate which may increase or maximize reliability. The bending test apparatus includes a table, a first electrode part fixing one side of a flexible substrate on the table, a guide rail disposed adjacent to the first electrode part, the guide rail extending from the one side of the flexible substrate to the other side, a slider moved along the guide rail, and a second electrode part connected to the slider, the second electrode part approaching or spacing the other side of the flexible substrate to/from the first electrode part.

Abstract: A fixture for testing a tubular member simultaneously in bending and torsion is disclosed. The fixture includes first and second attachment elements that are configured to couple to the tubular member, and a load shoe that is configured to fit within the tubular member. The load shoe includes a body having a contact surface configured to contact a portion of an internal surface of the tubular member and at least one load reaction strut coupled to the body. The load reaction strut is configured to pass through a hole in the tubular member and accept a first force applied in a first direction that is perpendicular to an axis of symmetry of the tubular member.

Abstract: A method of testing metal samples is provided to simulate stretch flanging of trimmed surfaces. A sample having planar sides and a sidewall extending between the planar sides is placed in a fixture so that the planar sides are confined. The sidewall of the sample is bent about a curved surface while restricting buckling out of a planar area. One testing machine is disclosed in which a test specimen is clamped in a die with a nesting slot while a punch bends a sample against a forming surface that has a radius. In another testing machine, a mandrel and clamping element engage the planar sides of the sample while first and second bending members engage first and second end portions to bend one of the sidewalls of the sample about the mandrel.

Abstract: The present invention refers to a method for determining the dynamic characteristics of a ski boot comprising the steps of selecting at least three parameters suitable to represent some dynamic characteristics of the boot, experimentally determining the values assumed from each of the parameters, and finally determining the dynamic behaviour of the ski boot on the basis of the combination of the values measured in the previous step. Also claimed is an apparatus for determining a parameter of dynamic behaviour of a ski boot.

Abstract: A bending test fixture for test coupons includes a test region for receiving a test coupon and first and second supports on opposed sides of the test region. One of the first or second supports includes a first pair of spaced-apart support points and the other of the first or second supports includes a second pair of spaced-apart support points that are narrowly spaced relative to the first pair of spaced-apart support points. There is a load shaft for applying a load to the second support and an articulated joint between the load shaft and the second support for uniformly distributing the load to the first support.

Abstract: A height adjustment structure of printed circuit board and the adjustment method thereof are disclosed. The height adjustment structure includes an electronic device main body, a circuit board body and an adjusting component. The electronic device main body includes at least one fixing part. The circuit board body is disposed on a surface of the electronic device main body at which the fixing part is located. The circuit board body includes at least one stuck part, wherein the stuck part is disposed along the edge of the circuit board body and corresponds to the fixing part; further, the stuck part recesses inwards into the circuit board body to form a U shape. One end of the adjusting component movably penetrates the fixing part and being screw locked thereon, and another end of the adjusting component is embedded to the stuck part.

Abstract: A fabricating method and a testing method of a semiconductor device and a mechanical integrity testing apparatus are provided. An object includes a wafer, an insulating layer, and a plurality of conductive posts is provided. A surface of the wafer has a plurality of first blind holes outside chip regions and a plurality of second blind holes inside the chip regions. The insulating layer is between the conductive posts and the walls of the first blind holes and between the conductive posts and the walls of the second blind holes. A mechanical integrity test is performed to test a binding strength between the insulating layer, the conductive posts, and the walls of the first blind holes. The conductive posts in the chip regions are electrically connected to an element after the conductive posts in the first blind holes are qualified in the mechanical integrity test.

Abstract: A method of verifying performance of a coated part includes calculating a deflection value as a function of a predetermined strain threshold value and a total thickness of a test coupon that comprises a coating on a substrate. The coating of the test coupon is co-deposited in a deposition process for producing a coated part. The test coupon is bent in an amount equal to the calculated deflection value and then evaluated as an indication of whether a mechanical characteristic of the coated part meets a specified level.

Abstract: An inspection system for inspecting a processing accuracy of a work piece is provided. The inspection system includes a supporting mechanism which supports the work piece in a same posture as a posture in which the work piece is assembled to a body; a load reproduction device which applies a load to the work piece along a substantially vertical direction; and a measurement device which measures positions of at least one characteristic portion of the work piece while the load is being applied to the work piece.

Abstract: One aspect of the inventive technology may be generally described as a method for determining test object deformation response that comprises the steps of moving a deformation force deliverer 1 to deliver deformation force 24 to a test object 3; adjusting a deformation force deliverer affecting input so as to meet at least one constraint while performing the step of moving the deformation force deliverer 1; deforming the test object 3 with the deformation force 24; and determining test object response to the deformation force. Corollary apparatus, in addition to other inventive apparatus and method aspects relating variously to test object deformation response determination are part of the inventive technology. Such aspects may relate to the use of a linear actuator 15 in a test object deformation and to identity of motion of a deformation force deliverer 3 and a force deliverer drive component 75, as herein described.

Abstract: Some embodiments include an apparatus for testing flexible displays. The apparatus can include: (a) a first clamp configured to receive a first end of the flexible display; (b) a second clamp configured to receive a second end of the flexible display, wherein the second end of the flexible display is opposite the first end of the flexible display; and (c) a test column. Other embodiments and methods are disclosed herein.

Abstract: A method of testing a seating structure includes disposing a seat engaging member on a seat and engaging a backrest material with an anthropometric surface of a back engaging member. The back engaging member is pivotally attached to the seat engaging member. A test device kit includes a plurality of seat engaging members having different flexibilities and a plurality of back engaging members having different anthropometric rear surfaces. Each of the back engaging members is pivotally connectable with each of the plurality of seat engaging members. A method of assembling a test device includes selecting a seat engaging member from a plurality of seat engaging members having different flexibilities and selecting a back engaging member having an anthropometric rear surface from a plurality of back engaging members each having a different anthropometric rear surface, and pivotally connecting the seat engaging member with the back engaging member.

Abstract: The present invention provides an apparatus and method for non-destructive measurement of bending stiffness of a gas diffusion layer (GDL) for a fuel cell by measuring a sagging length of a GDL sample, which can be used for a fuel cell, without damaging or destroying the GDL sample.

Abstract: The invention relates to a method for assembling sheets by riveting, comprising a step for piercing a hole through the sheets, followed by a step for placing a rivet in the pierced hole, the step for piercing a hole being executed by supplying an advance speed instruction of a piercing tool as well as a rotation speed instruction of this tool. According to the invention, a previous step for determining information on the local stiffness of the sheets (Info_stiffness) is also carried out at the level of the hole to be pierced, the advance speed instruction and rotation speed instruction of the tool being a function of this information on the local stiffness of the sheets. Application most suited to the field of aircraft construction.

Abstract: A test fixture for use with a Dynamic Mechanical Analyzer (DMA) restrains a hollow cylindrical tube for purposes of performing either a tensile or transverse/bending load test. The fixture includes a clamp that is configured to restrain the tube without imparting a preload or changing a mechanical property of the tube.

Abstract: A device for measuring torsions, bendings, and the like, of a target component includes a metallic substrate, an insulating layer, and a sensing layer in the form of a gauge system. The device is configured to be fixed to the target component via a fixed connection.

Abstract: A flexible pipe fatigue monitoring system 30 comprising a pipe monitoring system 32, 40, 42 adapted to be provided on a flexible pipe 10 having a bend stiffener 18. The pipe monitoring system 40, 42 is provided on the pipe 10 below the bend stiffener 18. The monitoring system 32 measures one or more of bending, tension and torsion of the pipe 10. The pipe monitoring system 30 comprises sensor carrier members 40, 42 adapted to be coupled to the pipe 10 and at least one fibre Bragg grating strain sensor embedded in a carrier member 40, 42. An inclinometer 34 is provided on one carrier member 40 to measure the incline of the pipe 10 relative to earth. A central processor 38 is provided to receive bending, tension and torsion information and incline information, and is operable to determine pipe fatigue from said information. A method of flexible pipe fatigue monitoring is also provided.

Abstract: A wearable system of one or more body position or motion sensors can include a flexible sensing element to be coupled to or worn on a body. When straight, the flexible sensing element defines a longitudinal axis. It includes a lumen carrying a flowable substance, such as a liquid, gas, or gel. A measurable parameter of the flowable substance, such as pressure, volume, or flow, provides an indication of a longitudinal axial bending, twisting, or elongation, such as due to movement of at least one body part to which the sensing element is coupled. The lumen is coupled to a transducer by at least one conduit for the flowable substance. The transducer converts the measurable parameter of the flowable substance into a transducer output signal indicative of the longitudinal axial bending, twisting, or elongation of the sensing element, from which body part position or movement information can be derived.

Abstract: A method for inspecting characteristics of bended flexible unit is disclosed, which comprises steps of: (a) providing a clip unit, an observing unit, a characteristic-inspecting unit and a controlling unit; said clip unit, observing unit, and characteristic-inspecting unit are electrically connected to said controlling unit which stored a predetermined radius; (b) the clip unit clips a flexible unit and bends the same; (c) the observing unit gets the lateral profile of the flexible unit and sends it to the controlling unit which calculates the bending radius thereof accordingly; and (d) the controlling unit determines if the bending radius is the same to the predetermined one; if positive, the clip unit stops and the characteristic-inspecting unit inspects the characteristic of said flexible unit; if negative, the procedure returns to step (b).

Abstract: A multi-axis fatigue testing device includes a multi-axis test fixture having a multiple input, multiple output mechanical linkage driven by a plurality of actuators and a controller operating each of the plurality of actuators in real time and in synchronization to produce user-defined multiple fatigue cycle profiles. At least one of the actuators driving the mechanical linkage acts against an artificial load characterized by a stiffness. The stiffness is selected to increase a resonance frequency of the test fixture to allow fatigue testing at higher frequencies for a wider range of samples.

Abstract: A bending-detection apparatus includes a sheet-shaped substrate having flexibility and a bending-detection mechanism including a sensor which measures a potential difference to detect bending deformations of the substrate and two bending-detection sections which are arranged on a surface of the substrate at different areas respectively. Each of the bending-detection sections has a piezoelectric layer provided on a surface of the substrate; plurality of first electrodes which are conducted with each other and each of which extends on a surface of the piezoelectric layer along a direction; a plurality of second electrodes which are arranged alternately with the plurality of first electrodes. An electrode-extending direction in which the first and second electrodes extend is different between the two bending-detection sections. Consequently, a bending-detection apparatus capable of detecting bending deformations in the substrate in various directions is provided.

Abstract: A sensor fabric has a plurality of flakes of a flexoelectric material and electrodes as threads for connecting the flakes together. Each flake has at least one pair of opposite edges connected by two separate electrodes. When the sensor fabric is placed in contact with the surface of an object, the flake is bent along the contour of the object surface. The bending of the flexoelectric flake generates a polarization voltage between its opposite edges, which can be measured via the electrodes to determine the local surface contour of the object.

Abstract: A method and apparatus for testing the fatigue of an implantable lead by simultaneously bending and un-bending it at a plurality of successive positions wherein the bending and un-bending positions comprise a substantial length of the lead and wherein the bending radius and sector angle are substantially optional.

Abstract: A clip for detecting bending forces and electrical characteristics is disclosed, which comprises: a base; a clipping head fixedly disposed on the base and composed of a clipping sheet and a fixing sheet combined therewith; and a force detecting unit fixedly disposed the base and contacting the clipping head; wherein the clipping head is provided with two electrodes thereon and the two electrodes contact a substrate when the clipping head clips the substrate.

Abstract: A bend sensor according to one aspect of the present invention is a bend sensor for sensing a bend of a base member in a longitudinal direction comprising: the base member; and a plurality of strain sensitive elements which are disposed at different positions in a width direction on an one side surface of the base member and are disposed at two or more different positions in a thickness direction of the base member.

Abstract: A test fixture for use with a Dynamic Mechanical Analyzer (DMA) restrains a hollow cylindrical tube for purposes of performing either a tensile or transverse/bending load test. The fixture includes a clamp that is configured to restrain the tube without imparting a preload or changing a mechanical property of the tube.

Abstract: The invention relates to a method for measuring bending moments on a joint (12) wherein the joint (12) is formed at least from two joint sections (11, 13), which are flexible relative to each other at least about a bending axis (14, 15).

Abstract: A testing system (100) is used to test a flip-type electronic device (80). The electronic device includes a cover (802) and a main body (801). A hinge (803) connects with the cover and the main body. The testing system includes a base (10), a plummer (20), a flipping device (30) and a control device (40). The plummer is fixed on the base for locking the electronic device. The flipping device is fixed on the base for opening and closing the cover of the electronic device. The control device includes an optical fiber sensor (42) for sensing the movement of the cover of the electronic device. The control device connects with the flipping device so as to control the flipping device.

Abstract: A method for testing poles (1) including the steps of applying a first load to a pole (1), measuring the movement of the pole (1), at least partially de-loading the pole (1) to a second load, measuring the movement of the pole (1), and using the change in the movement measurements under the respective loads to calculate the pole (1) stiffness.

Abstract: A clip for detecting bending forces and electrical characteristics is disclosed, which comprises: a base; a clipping head fixedly disposed on the base and composed of a clipping sheet and a fixing sheet combined therewith; and a force detecting unit fixedly disposed the base and contacting the clipping head; wherein the clipping head is provided with two electrodes thereon and the two electrodes contact a substrate when the clipping head clips the substrate.