A dynamics performance testing system, for use in testing the dynamics performance of an anchor rod or an anchor rode, comprising a main machine and a measurement and control system. The main machine comprises a vertical machine frame (1), a clamping apparatus (3) arranged on the top of the vertical machine frame (1) and used for vertically clamping the top end of a sample (6), where the sample (6) is provided at the bottom end thereof with a tray (61), a drop-hammering apparatus (2) used for being dropped vertically from the vertical machine frame (1) at a set height to impact the tray (61), a lifting apparatus used for lifting the drop-hammering apparatus at the bottom of the vertical machine frame (1) to the set height, and a protection apparatus used for physical protection and isolation to reduce bodily injury and noise. The measurement and control system controls the drop-hammering apparatus to select a parameter for drop-hammering and a process of lifting and dropping. The real-time impact on the tray (61) when the drop-hammering apparatus is dropped vertically is sensed by a force sensor, while real-time impact data received from a sensor device is analyzed, and a test result is outputted. The dynamics performance testing system is provided with versatility while the test result is accurate and reliable.

This disclosure provides new and improved processes and methods for quantitative analysis and classification of hair phenotypes, specifically curly hair phenotypes. In an aspect, quantitative geometric measurements can be used to determine whether a hair fiber is wavy, curly, coiled, kinky, or kinky-coiled.

A yarn entanglement strength tester includes first and second rolls that apply incrementally increasing elongation levels on a yarn in order to remove entanglements from the yarn. The yarn entanglement strength tester also includes a third roll, where the second and third rolls apply a constant tension on the yarn which enables optimum diameter measurements of the yarn by a camera. The camera captures images of diameters of the yarn after each of the incrementally increasing elongation levels is applied to the yarn. The yarn entanglement strength tester further includes a computing device that controls operation of the camera and the first, second, and third rolls, and determines an entanglement strength of the yarn based on the captured images of the diameters of the yarn after each of the incrementally increasing elongation levels is applied to the yarn.

A mechanism is provided for identifying a wire-pull test location on a wire of a microelectronic package. A first distance between a first terminating location of the wire on the microelectronic package and a second terminating location of the wire on the microelectronic package is determined. Based on the first distance, a second distance from either the first terminating location or the second terminating location is determined as the wire-pull test location for testing a strength of a connection of the wire to at least one of the first terminating location or the second terminating location. An adjustment is performed such that a visual guide is oriented on the wire at the wire-pull test location.

A test rig for a subsea cable product 1 includes a sheave module 22 including a sheave 10 for holding a subsea cable product 1 that is to be tested and a load module 30 for applying tension to the subsea cable product 1 on the sheave 10 in order to perform a tensile bending test. An elongate base 28 is provided for placement between the sheave module 22 and the load module 30, the elongate base 28 providing a horizontal beam that can hold a compressive load generated by tension in the subsea cable product 1 during the tensile bending test. The sheave 10 can be reversibly divided into parts for transportation in one or more container(s) of smaller cross-section than the diameter of the sheave 10. The elongate base 28 can be reversibly divided into parts for transportation in one or more container(s) of smaller length than the whole length of the elongate base 28. In this way the test rig is made portable, for example as a kit of parts, and may be used in methods involving transport to different locations along with assembly/disassembly of the test rig.

To provide an analysis apparatus, an analysis method, and a program that are non-destructively analyze a degree of damage of a fiber rope, an analysis apparatus includes an analysis unit that analyzes the degree of damage of the fiber rope by using an invariant model indicating a relationship between a plurality of pieces of time-series data based on measurement data of one or more sensors attached to or around the fiber rope.

An ultrasound vibrating-type defect detection apparatus (100) for detecting a defect in a semiconductor apparatus (10) is provided with: an ultrasound vibrator (42); a high-frequency power supply (40); a camera (45); and a controller (50) for adjusting the frequency of high-frequency power supplied from the high-frequency power supply (40) to the ultrasound vibrator (42), and for performing detection of a defect in the semiconductor apparatus (10). The controller (50) causes the camera (45) to capture an image of the semiconductor apparatus (10) while varying the frequency of high-frequency power supplied from the high-frequency power supply (40) to the ultrasound vibrator (42), and performs detection of a defect in the semiconductor apparatus (10) on the basis of the captured image.

The present disclosure provides a system, apparatus and method for generating randomly aligned fiber beards for evaluation. The system comprises abase and an x-axis frame member couples to and is positioned parallel to the base. A y-axis frame member is couple to and positioned perpendicular to the base. A sample plate is removably coupled to the y-axis frame member and defines one or more holes. A fiber clamp couples to and is movable by the x-axis frame member perpendicularly to the sample plate.

A method and device for electro-thermo-mechanical tensile testing of wires is disclosed. The device includes a sample frame having upper and lower parts, with the upper part coupled to the lower part through a plurality of sacrificial supports, the upper and lower parts each having an electrical contact pad. The upper and lower parts are electrically non-conductive. The device also includes a wire sample with tracking beads, the wire sample affixed to the upper and lower parts such that the electrical contact pads of the upper and lower parts are communicatively coupled through the wire sample. The device also includes a piezo actuator coupled to the upper part, a weight coupled to the lower part, a power supply configured to pass a current through the wire sample, an electronic balance beneath the weight, and a digital camera pointed at the tracking beads of the wire sample.

The subject invention pertains to a new method for measuring the elastic properties of microfibers by rope-coiling. Rope-coiling refers to the buckling of a slender elastic fiber caused by axial compression. A continuous flow microfluidic method enables the high-throughput measurement of the elasticity of microfibers by rope-coiling, where sample loading and unloading are not needed between consecutive measurements. In certain embodiments the coiling radius can be directly proportional to the elastic modulus of the fiber, facilitating calibration to measure fiber elasticity for high-throughput applications. Throughput can be thousands of times higher than that of a tensile tester, making possible an in situ, on-line measurement in a microfluidic production line, which couples the making of microfibers and the measurement of elasticity on the same line. The new method can also measure certain fibers with local variations in elasticity.