6results about How to "Guaranteed simultaneity" patented technology

The utility model belongs to the technical field of environment detection sampling, and discloses an environment detection multi-point sampling device, which comprises a drawing component for pulling and applying force, and further comprises a rack component for supporting extension, a plurality of collecting components for adjusting sampling positions in a sliding manner and sucking and sampling are mounted on the rack component, and the collecting components are mounted on the rack component. The drawing assembly is inserted in the middle of the rack assembly; the rack assembly comprises a fixing frame, the fixing frame is in a radial shape, each radial arm of the fixing frame is provided with scale marks, and a supporting pipe is arranged in the middle of the fixing frame; the collecting assembly comprises a sliding frame, and a first locking nail is installed behind the sliding frame. According to the environment detection multi-point sampling device disclosed by the utility model, the sampling applicability is increased by adjusting the sampling position and arranging suction sampling; the sampling position is adjusted in a sliding manner, so that the adjustment convenience is improved; and through the matching arrangement of the spherical hinge support and the drawing line, the multi-point sampling synchronism is ensured.

The invention discloses an alloy die-casting flowability die capable of testing high-vacuum different wall thicknesses. The die comprises a fixed die, a movable die and a die holder. Wherein the movable mold is provided with a cavity, and the cavity comprises an overflow groove, three flowability samples with different thicknesses, a material cake, a vacuum test groove, a shunting hole and an ESCs collector. In order to avoid turbulent air entrapment caused by a large corner and ensure that the tail end is communicated with the exhaust thin plate, the flowability channel is designed to be annular, the corner angle of the die is smooth and smooth, and shrinkage porosity, shrinkage cavity and air entrapment almost do not exist through intelligent casting super-cloud die flow analysis, so that the flowability of the alloy can be correctly reflected. In addition, the mold can also be used for testing the flowability of alloys with different thicknesses, and the flowing stopping length of the sample serves as the basis for judging the flowability. In conclusion, the flowability of the alloy under different wall thicknesses can be tested at the same time in the high-vacuum die-casting state, and the flowability of the alloy can be correctly reflected.

The utility model relates to a force-measuring balance mechanism for a circular tube, which comprises a translation plate, a lever seat is mounted on the side surface of the translation plate in an up-down moving manner, a lever is rotationally mounted on the lever seat, the lever forwards penetrates through the translation plate, and a force-applying bulge is arranged at the front end part of the lever; a supporting auxiliary assembly is mounted on the translation plate positioned below the lever, and a convex arc-shaped supporting surface of the supporting auxiliary assembly is positioned below the force application bulge of the lever; an inner support assembly is installed outside the front portion of the lever, the inner support assembly clamps an inner support of the circular pipe, along with forward movement of the translation plate, the end portion of the lever extends into the circular pipe, an outwards-protruding arc-shaped supporting face located below the lever extends into the circular pipe until the force application protrusion moves to a preset to-be-measured position of the circular pipe, and the lever seat is stressed to move upwards. The force application bulge at the end part of the lever counteracts on the inner wall surface of the to-be-tested circular tube to realize a force test, and meanwhile, the circular tube is structurally supported by the convex arc-shaped supporting surface below the force application bulge, so that the balance of the structural support of the circular tube in the test is realized, and the accuracy and the reliability of the test of a force application point are ensured.

The invention relates to the technical field of experiment devices, and discloses a phased array demonstration experiment device based on water surface waves and an operation method thereof.The phased array demonstration experiment device comprises a miniature image calculation terminal and a box body, and the box body comprises an upper bearing box and a lower supporting box fixedly connected with the upper bearing box; the connecting surface of the upper bearing box and the lower supporting box is a transparent material plate; a light source module is arranged at the top of the upper bearing box, a hollow cavity is formed in the upper bearing box, a water wave medium module, a wave absorbing module and a point wave source generating device are arranged in the hollow cavity, and the water wave medium module comprises a transparent water cylinder and water arranged in the water cylinder; a camera is arranged at the bottom of the lower supporting box, a semi-transparent and semi-reflecting glass mirror is obliquely arranged in the lower supporting box, and a curtain is arranged on the side wall of the lower supporting box. The device adopts water waves as a medium, and simulates and displays wavefront deflection changes of a plurality of electromagnetic wave sources caused by adjustment and control of phase differences in real time through superposition and interference phenomena of water surface waves.

This utility model relates to the field of high-voltage power supply semiconductor switch technology, specifically a high-voltage optically controlled bidirectional switch assembly. A pair of optically controlled switch valve bodies and voltage equalizing resistor circuits are symmetrically arranged on each partition between the upper and lower plates of the switch assembly. Optical fibers are connected to the optically controlled switch valve bodies, and these fibers are connected to a positive optical pulse generator and a negative optical pulse generator. This utility model uses a high-energy laser pulse beam to trigger the switch's activation, resulting in superior high- and low-voltage insulation and isolation, and eliminating electromagnetic interference. By improving the length of the optical fiber and the trigger pulse timing, the activation time of the multi-stage series semiconductor switches is controlled within 1μs, thus meeting the requirements for multi-stage series applications. Furthermore, the switch assembly adopts a bidirectional design, allowing bidirectional withstand of rated voltage. The contactless design of the switch valves ensures noiseless operation during activation, meeting partial discharge test requirements while being safer, more stable, flexible, and efficient.