A sensor device for detecting static modulus of elasticity in situ comprising: top and bottom frame end plates, said top and bottom frame end plates connected by at least two frame side bars; a dry cavity connected to said top frame end plate comprising a piston, precompression mechanism, and piston transfer plate; a displacement measurement gauge extending from said dry cavity along a longitudinal axis of said sensor device having a first end in contact with said piston transfer plate and a second end in contact with a bottom inner face of said bottom frame end plate; and a top inner face connected to said piston transfer plate, wherein a portion of elastomeric material is positioned on said bottom and top inner faces, said elastomeric material positioned to prevent contact with either bottom or top inner faces except for a portion along the longitudinal axis of the displacement measurement gauge.

In one embodiment, a concrete strength testing system includes a core drill having a core barrel, a press associated with the core drill that is configured to drive the core barrel into concrete to be tested, a force sensor associated with the core drill that is configured to measure a force with which the core barrel is driven into the concrete by the press, and a depth measurement device configured to measure a depth into the concrete to which the core barrel is driven by the press.

Embodiments of the present application provide a method for preparing a sample for wafer level failure analysis. The method includes that: a plurality of splitting points are formed on a surface of a selected region of a to-be-analyzed sample along a preset direction, the plurality of splitting points being arranged in a straight line; and the to-be-analyzed sample is split by taking the straight line where the plurality of splitting points are located as a splitting line, to expose a cross section of a side surface of the to-be-analyzed sample and form the sample for the wafer level failure analysis.

In one embodiment, a concrete strength testing system includes a core drill having a core barrel, a press associated with the core drill that is configured to drive the core barrel into concrete to be tested, a force sensor associated with the core drill that is configured to measure a force with which the core barrel is driven into the concrete by the press, and a depth measurement device configured to measure a depth into the concrete to which the core barrel is driven by the press.

A controller of a hardness tester can determine, in a condition where a driver is not in operation and when a spring displacement detector and an arm displacement detector detect an amount of displacement of respective objects (plate spring and loading arm), that a loading arm and a plate spring are deformed according to changes in environmental temperature. A favorable hardness test can be performed by the hardness tester corresponding to the environmental temperature according to the determination by carrying out an initialization process that resets the displacement amount of respective object to zero, the displacement amount detected by the spring displacement detector and the arm displacement detector respectively.

An object of the present invention is to provide a durometer enabling a contact portion in contact with an object to perform smooth piston motion. The durometer includes a main body unit including a movable unit pressed continuously against an object to be measured, a first sensor outputting acceleration information corresponding to an acceleration of movement of a contact part of the object to be measured in contact with the movable unit in a pressing direction, a second sensor outputting reactive force information corresponding to a reactive force at the contact part of the object to be measured in contact with the movable unit, a motor, a crank mechanism driven by the motor and causing the main body unit and the movable unit to perform piston motion, and at least one buffering member disposed on a periphery of the main body unit.

A device for assessing the solidity of a material comprising an ancillary tool (2) having an end (2B) in the form of a point or blade, an impactor (4) for striking the ancillary tool (2), a sensor (12) and a processing unit (30). The ancillary tool (2) is placed between a material (8) and the impactor (4) and transmits the impact force generated by the impactor (4) to the material (8). The sensor (12) is capable of measuring a quantity from among the impact force and the deformation of the impactor, and of supplying a measurement signal. The processing unit (30) is suitable for calculating, from the measurement signal, an indicator representative of the solidity of the material (8). The indicator corresponds to the duration of a time window between the first peak (P1) of maximum amplitude of the measurement signal and the second peak of maximum amplitude (P2).

A plastometer has: a main frame, a driving unit, an electromagnet, a loading dock, a lower mold, an upper mold and a measuring unit the driving unit drives the lifting platform, so the lifting platform makes a stable elevating displacement along the two supporting columns. Then, the electromagnet attracts and controls the loading dock, so the pressure amount to be provided by the loading dock for each test object 80 can be simply obtained, and the measurement operation is actually performed by the measuring unit which can get accurate test results to improve the measurement efficiency of the relevant industry.

A loading device, a monitoring system, and a method thereof can measure stiffness of a structural member (SM) and monitor progress or property thereof over time. The loading device includes two types of displacement sensors, one type being an antenna. As the SM, which is in a magnetic or electromagnetic field and electromagnetically coupled to the antenna without contact, undergoes displacement under known loads, characteristics of the electromagnetic field coupling between the antenna and the SM change over time due to the displacement of the SM. The shift in the characteristics of the electromagnetic field coupling between the antenna and the SM can be used to determine the displacement of the SM. Based on the changes in the displacement over time, diagnosis of the SM being monitored over an evaluation period can be made. The loading device includes at least one movable frame to apply a preload to the SM.

An apparatus for use in testing the bulk crush characteristics of pellet materials. The apparatus constructed such that opening and closing can be conducted without complex binding and unbinding requirements. The apparatus may be used in combination with a universal testing machine fitted with compression test plates and a load cell capable of measuring force in a vertical direction.