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This invention provides a method and apparatus for detecting the reuse of centrifuge tubes in ultra-high-speed centrifuges, comprising the following steps: S1, pressurizing and filling a medium into a new centrifuge tube, and detecting the diameter deformation of the centrifuge tube online; S2, using the maximum pressure that the centrifuge tube can withstand to return to its initial diameter as the yield limit pressure value; S3, replacing the centrifuge tube to be reused, pressurizing and filling the centrifuge tube to be reused with a medium, controlling the reuse pressure value at 75%~95% of the yield limit pressure value; S4, detecting the diameter deformation of the centrifuge tube to be reused online; S5, selecting the centrifuge tube that can return to its initial diameter as the reuse centrifuge tube. This invention can detect centrifuge tubes and determine whether they can be safely reused, significantly reducing experimental costs. It can be used to detect whether replacement centrifuge tubes meet the application requirements of ultra-high-speed centrifuges. It prevents substandard centrifuge tubes from entering the ultra-high-speed centrifuge, causing equipment damage or even sample leakage.

The invention provides a centrifuge tube reuse detection method and device for an ultra-high-speed centrifuge, and the method comprises the following steps: S1, pressurizing and filling a new centrifuge tube with a medium, and carrying out the online detection of the diameter deformation condition of the centrifuge tube; s2, taking the maximum pressure value which can be borne by the centrifugal tube when the centrifugal tube returns to the initial diameter as a yield limit pressure value; s3, replacing the to-be-reused centrifugal tube, pressurizing and filling the to-be-reused centrifugal tube with a medium, and controlling the reuse pressure value to be 75-95% of the yield limit pressure value; s4, detecting the diameter deformation of the centrifuge tube to be reused on line; and S5, selecting a to-be-multiplexed centrifugal tube capable of returning to the initial diameter as a multiplexed centrifugal tube. The centrifugal tube can be detected, whether the centrifugal tube can be safely reused or not is judged, and the experiment cost is greatly reduced. The device can be used for detecting whether the replaced centrifuge tube meets the application requirements of the ultra-high-speed centrifuge. And the centrifugal tube with substandard quality is prevented from entering the ultra-high-speed centrifugal machine to cause equipment damage and even sample leakage.

This disclosure describes a sensing capability resistant to crosstalk. A current sensor is provided for a target conductor among a plurality of conductors. The current sensor includes at least one magnetic sensor configured to provide two signals representing two different parameters of a field, the two different parameters being different components or their directional derivatives (e.g., gradients). The current sensor also includes a processor configured to derive a signal indicating a current based on a linear combination of a first signal and at least a second signal. At least one of these signals is weighted by coefficients that are constants selected based on the distance between the sensor and at least one of the plurality of conductors in at least a first or second direction. The coefficients are selected to reduce the contribution of parasitic magnetic fields to the signal indicating a current in the first conductor, wherein the parasitic magnetic field is generated by at least one other conductor.

The invention relates to a turbine module having a longitudinal axis, in particular of an aircraft, comprising a plurality of variable pitch blades (2) around the longitudinal axis and a pitch change system (3) of the blades (2), comprising at least one control device and a connecting element (32), and at least one control device connected to the root (4) of at least one of the blades in order to control the rotation of the root about its pitch axis (A), the connection element being arranged about the longitudinal axis. According to the invention, each connecting element is arranged between adjacent vanes around the longitudinal axis, and each connecting element is connected to the vane root (4) and to an adjacent connecting element by means of an articulated connection, each connecting element being configured to transmit a rotational movement of the vane controlled by the control device to at least one further vane.

An ultrasonic transducer according to this invention includes a constant-resistance circuit formed of at least a piezoelectric element and a parallel circuit, and is configured to produce ultrasonic waves in response to input waves input through an input transmission path to the piezoelectric element through the parallel circuit, and to output detection signals from the piezoelectric element through an output transmission path that is different from the input transmission path without passing the detection signals through the parallel circuit.

One embodiment of the present invention is a rotor capable of rotating about a central axis, the rotor comprising: a shaft extending in an axial direction; a rotor core fixed to the shaft; and an end plate arranged side by side with the rotor core in the axial direction. The shaft has: a void portion provided inside the shaft; and a through-hole connected to the void portion. The through-hole has a first opening that opens in the outer peripheral surface of the shaft. The end plate has a first groove portion extending in the radial direction. The first groove portion has a second opening portion that opens on the side opposite to the side where the rotor core is located in the axial direction. The radially inner end portion of the first groove portion is connected to the first opening portion. The inner surface of the first groove portion has a groove bottom surface located on the side where the rotor core is located in the axial direction. The slot bottom surface has a first surface that is axially separated from the rotor core toward the outside in the radial direction.

A container labeling machine includes: a conveyor (2) for a container (3) to be labeled along a forward path (2a), and at least one labeling unit (5) arranged along a forward path (2b) of the container (3). The labeling unit (5) includes: an unwinding assembly (6) adapted to pick up a label strip (7) from a reel on which labels (8) to be applied to the container (3) are continuously printed; the unwinding assembly feeds the label strip (7) to a cutting roller (9), which has suction orifices (10) on its side surface for attaching the label strip (7); and the cutting roller is equipped with a cutting device for cutting the label strip (7) at a separation area between two consecutive labels (8). The cutting roller (9) is adapted to release the cut labels (8) to a transport roller (11) configured to transport the individual labels (8) such that they are attached to the corresponding container (3) delivered from the conveyor (2). According to the invention, a cutting roller (9) supports at least one cutting device (14) having a respective air suction chamber (15) that is substantially open at a side surface of the cutting roller (9) and contains at least one blade (16). The suction chamber (15) can be connected to an air suction device (17) for pulling the label tape (7) toward the blade (16), thereby cutting the label tape (7).

The present invention provides: an electrolyte composition (14) which is capable of reducing move of an electrolyte solution; and a secondary battery (10). This electrolyte composition contains a solid electrolyte (18) which has lithium ion conductivity, an electrolyte solution (21) into which a lithium salt is dissolved, and a granular polymer (22) which is dispersed in the electrolyte solution. This secondary battery sequentially comprises a positive electrode (11), an electrolyte layer (14) and a negative electrode (15); and at least one of the positive electrode, the electrolyte layer and the negative electrode contains an electrolyte composition that contains a solid electrolyte which has lithium ion conductivity, an electrolyte solution into which a lithium salt is dissolved, and a granular polymer which is dispersed in the electrolyte solution.

The invention relates to a hand-held power tool, in particular a screwdriver, having an elongate housing in which a drive unit having at least one drive motor is arranged for driving a tool receptacle, wherein the tool receptacle is configured for receiving an insert tool, and an activation unit for activating the drive motor, wherein activation of the drive motor is effected by loading of an insert tool arranged in the tool receptacle, in particular against a workpiece to be machined, along a longitudinal axis of the hand-held power tool, the activation unit having a motor switch arranged in the region of the tool receptacle and a manipulation element arranged on the periphery of the tool receptacle for manipulating the motor switch, wherein the tool receptacle has an inner receptacle facing the drive motor for receiving a spring element belonging to the activation unit, which, by loading of the tool receptacle, loads the manipulation element in a direction away from the drive motor for deactivating the drive motor.