The present disclosure relates to an apparatus and a method for an impact test, which can easily accelerate an impact body at a desired acceleration using an air pressure and an electromagnetic force. According to an embodiment of the present disclosure, an apparatus for an impact test includes a clamping unit configured to fix a specimen, and an impact unit disposed to be spaced apart from the clamping unit and configured to accelerate and launch an impact body to collide with the specimen by an air pressure and an electromagnetic force.

Disclosed is a material testing system that includes an output shaft configured to be moved by operation of a motor, the output shaft coupleable to a test specimen such that movement of the output shaft imparts a mechanical force on the test specimen. The material testing system includes a haptic feedback system configured to provide an operator of the material testing system haptic feedback related to a position or state of the output shaft relative to the test specimen during setup. Methods of testing using haptic feedback are also disclosed.

The present disclosure provides a system and method for testing dynamic properties of a material under a complex stress state, and belongs to the technical field of dynamic mechanical property tests. The system includes a control circuit system, a loading system, and a signal acquisition system. Based on the electromagnetic loading technology, the control circuit system controls charging and discharging of the loading system, the loading system loads the material, and the signal acquisition system acquires material strains and time characteristics during loading. The control circuit system can discharge 4 discharge coils simultaneously through the same discharging silicon-controlled rectifier (SCR), realizing biaxial bidirectional synchronous loading.

A measuring device for detecting measuring signals during either a scanning across a surface to determine a surface profile or a penetration movement of an indenter into a surface of the specimen to determine hardness, and, scanning with sufficient force to determine the scratch resistance of the specimen is described. All of the measurements can be done on the same specimen without unmounting the specimen from a holder. A camera mounted to the same framework as the measuring device enables further documentation of the specimen being tested.

A device and method for testing the working performance of an anchor rod cable by simulating stratum fracture and separation on the basis of electromagnetic action, applicable to the technical field of testing working performance of anchor rod cables by simulating a tunnel field. The device comprises a top base (1) and a bottom base (2); a plurality of hydraulic vertical columns (3) are provided between the top base (1) and the bottom base (2); the plurality of hydraulic vertical columns (3) are provided thereon with clamping devices, and an electromagnetic block (9) is disposed between two groups of drawing block-shaped clamp holders (4). Using the attraction and repulsion forces of the electromagnetic block (9), the laminated electromagnetic block generates the separating or fracturing effect in a loading process so as to simulate the interaction between surrounding rock and an anchor rod cable test piece (8) in the field and accurately record various performance parameters of a working status of the anchor rod cable test piece (8), thereby providing positive guidance for directing field work.

A method and device for performing a bending test on a display panel are disclosed. The method includes the steps of: providing a fixing member, a pressure exerting member and a driving device, and forming a space in the fixing member; fixing the display panel vertically onto the fixing member, wherein the display panel matches with the space to provide a corresponding space for deformation of the display panel; and driving the pressure exerting member to move in a direction perpendicular to the display panel to exert a pressure onto the display panel. If the pressure exerted onto the display panel is equal to a predetermined pressure for a predetermined time, the driving device controls the pressure exerting member to stop exerting the pressure onto the display panel. The predetermined pressure is a pressure required to drive the display panel to deform and reach a predetermined curvature.

An actuator control system, mechanical testing system, and method for adaptive control of an actuator of a mechanical testing device may include determining a stiffness of a medium that the actuator is moving through and/or load gain of the actuator, wherein the stiffness and load gain is determined by generating a waveform to actuate the actuator until a load sensor signal and/or a displacement sensor signal is received, and controllably moving the actuator through the medium according to a predefined constant velocity by calculating a current request using the stiffness of the medium, and/or adjusting the load of the actuator in accordance with a constant load ramp rate.

A method for quantitatively measuring a physical characteristic of a material includes applying a force to a material sample according to an interrogation profile comprising a set of one or more interrogation parameters. The method further includes measuring a displacement over time of the material sample that occurs as a result of applying the force according to the interrogation profile. The method further includes using the interrogation profile and the measured displacement over time of the material sample to derive a quantitative value of a physical characteristic of the material sample.

The present invention is directed to a system for determining the structural characteristics of a machine tool. The system comprises an excitation device configured to induce a dynamic excitation in a tool of the machine tool, a preloading device configured to generate a static force on the tool, and a sensing device for acquiring a set of data based on which the structural characteristics of the tool can be determined.

The invention relates to a measuring System, a measuring arrangement and a method for detecting measuring signals during a penetration movement of a penetration body (41) into a surface of a test body (14), in particular for hardness measurement or for determining the Scratch resistance of the surface of the test body (14), or for detecting measuring signals during a scanning movement of the penetration body (41) on the surface of the test body (14), in particular for determining the surface roughness, comprising a housing (47) provided with a power generating device (44) which is operatively connected to a penetration body (41) for generating a displacement movement of the penetration body (41) along a displacement axis (48) of the penetration body (41) and which actuates a penetration movement of the penetration body (41) into the surface to be examined of the test body (14), or which positions the penetration body (41) on the surface of the test body (14) for scanning, and further comprising at least one first measuring device (78) for measuring the penetration depth in the surface of the test body (14) or a displacement movement of the penetration body (41) along its displacement axis (48) during a scanning movement on the surface of the test body (14), wherein the power generating device (44) actuates the displacement movement of the penetration body (41) by means of a magnetic force.