The invention relates to a method for inspecting the quality of a crimp connection by means of a handheldable pulling and compressing device suitable for producing the crimp connection, as well as a handheldable pulling and compressing device and a system for carrying out the method. In order to provide a method for inspecting the quality of a crimp connection by means of a handheldable pulling and compressing device suitable for producing the crimp connection, as well as a handheldable pulling and compressing device and a system for carrying out the method, which enable the quality of the crimp connection to be determined in a simple and reliable manner, it is provided that a crimp holder is arranged on a punch holder for attaching a crimp contact of a crimp connection and a cable holder is arranged on a die holder for attaching a cable of the crimp connection, a handheldable pulling and compressing device. From a screw drive, a tensile force transmitted to the crimp contact through the crimp holder via a coupling unit is transmitted to the crimp connection. The tensile strength of the crimp connection is determined by detecting the tensile force of the crimp holder and/or detecting the adjustment travel of the crimp holder by means of a sensor unit.

A detecting machine for a yield rate of bristles of a toothbrush and a detecting method for the bristles are provided. The detecting machine includes a power device and two rotating units, and the two rotating units are rotatably mounted on a side surface of the power unit. The two rotating units are disposed parallel to each other. When in a rotating condition, the two rotating units rotate in opposite rotating directions. When a manufacturer horizontally disposes a toothbrush between the two rotating units, the surfaces of the two rotating units may compress the bristles and pull the bristles toward a direction away from the toothbrush. Therefore the manufacturer can inspect whether the bristles are firmly mounted on the toothbrush.

An impeller high-precision static performance simulation device, a testing machine, and an impeller performance simulation testing method are provided. In the device, a centrifugal force acting on a blade is simulated by an upper clamper, a lower clamper and a tension sensor. In the process of carrying out a simulation test to the performance of the impeller, a centrifugal force effect of an air compressor impeller is simulated by a static pulling force, to accurately simulate and evaluate the service condition of the impeller under the action of a high-precision static force.

The present invention relates, in part, to systems for characterizing force (e.g., friction, and wear). In one embodiment, a tribometer allows for wear testing of samples in a high throughput manner. A counterface is used to apply force on the surface of the sample. A carousel provides for the rapid exchange of new for old counterfaces in the tribometer test head, thereby enabling the use of a new counterface for each new wear test without the need for operator interaction.

Disclosed is a drive mechanism for driving a spin test rig, comprising a transmission casing (1) which accommodates a transmission gear unit (8) having a vertical output shaft (10) and an input shaft (9) coaxial therewith. The output shaft (10) has an upper end arranged in the transmission gear unit (8) and a lower end adapted to be coupled to a test object. The transmission casing (1) includes a casing lower part (4) detachable therefrom with the gear unit installed, in which casing part the output shaft (10) is axially and radially carried in bearings (28, 29) at a distance from its ends. The transmission gear unit (8) is configured such that the output shaft (10), together with the casing lower part (4) and the bearings arranged therein, is removable from the transmission casing (1).

An impeller high-precision static performance simulation device, a testing machine, and an impeller performance simulation testing method are provided. In the device, a centrifugal force acting on a blade is simulated by an upper damper, a lower damper and a tension sensor. In the process of carrying out a simulation test to the performance of the impeller, a centrifugal force effect of an air compressor impeller is simulated by a static pulling force, to accurately simulate and evaluate the service condition of the impeller under the action of a high-precision static force.

The amount of dietary fiber in a sample can be quantified by dissoluting the sample to produce a dietary fiber solution and then centrifuging the dietary fiber solution to produce a pellet and a supernatant liquid. After separating the supernatant liquid from the pellet, the pellet can be analyzed to determine a content of non-dietary fiber components in the pellet. The dietary fiber content in the pellet can be determined from the content of the non-dietary fiber components in the pellet. By using centrifugation to help isolate the dietary fiber in the sample, fiber loss may be minimized, leading to a more accurate determination of the content of dietary fiber in the sample.

Provided is a repeated moment generation device that includes: a principal shaft; principal bearing members; lever members; principal eccentric weight rotors; auxiliary eccentric weight rotors; and drive means (such as a motor) for causing the principal eccentric weight rotors and the auxiliary eccentric weight rotors to synchronously rotate. Eccentricity directions of the principal eccentric weight rotors are different from each other by 180 degrees around shaft centers of shaft bodies thereof, eccentricity directions of the auxiliary eccentric weight rotors are different from each other by 180 degrees around shaft centers of shaft bodies thereof, and the eccentricity direction of the principal eccentric weight rotor and the eccentricity direction of the auxiliary weight rotor located on the same side as the principal eccentric weight rotor with respect to the principal shaft 1 are different from each other by 180 degrees around the shaft centers of the shaft bodies thereof.

Systems and methods are provided for allowing users to safely and efficiently conduct repeatable dynamic experiments involving coordinated applications of force, motion, pressure, temperature, flow, dispersion and other physical events via a testing fixture positioned within an imaging environment.

Disclosed is an electro-magneto-thermo-mechanical dynamic and synchronous loading device based on a wedge-shaped rotating body. The device comprises a carrier, a wedge-shaped rotating body and a pulse power supply, wherein the wedge-shaped rotating body is positioned above the carrier, the pulse power supply is connected to the carrier and the wedge-shaped rotating body through conductors, a test object is fixed on the carrier, the top of the wedge-shaped rotating body is connected to the output end of a driving shaft through a transmission shaft, the driving shaft drives the wedge-shaped rotating body to rotate and can apply downward pressure, and the wedge-shaped rotating body can be pressed against the test object and rotate on the surface of the test object.