3 results about "Circular loop" patented technology

A tension measurement and connection system for guy wires of a guyed wind measurement tower and its assembly method belong to the infrastructure technology field of the onshore wind power industry. The tension measurement and connection system is installed at the connection point between one end of the guy wire and the foundation tie rod of the guy wire reel, realizing the connection between the structural guy wire and the foundation tie rod. Simultaneously, during installation and construction, the tension of the guy wire is measured to ensure it reaches its design value, guaranteeing the safety of the entire structural system. It connects the main rod to the foundation tie rod via a U-shaped connecting rod and a circular loop, and a limiting nut secures the connecting crossbar to the U-shaped connecting rod, forming a closed-loop series structure. The guy wire is then fixed to the series structure using a clamp sleeve, a conical clamp, and clamp tightening bolts. A sensor installed on the sensor mounting bracket and the limiting nut ensure the pre-tension of the guy wire reaches its design value. This invention can simultaneously measure the pre-tension of the guy wire and connect it to the foundation tie rod of the guy wire reel, allowing the guy wire to perform its designed function and ensuring the safety of the wind measurement tower.

The application discloses a parameter acquisition method of a circular ring antenna array with equal-amplitude and in-phase patch feed, the antenna array comprises a metal ground plane and a plurality of equal-amplitude and in-phase excited antenna units arranged in a linear array on the metal ground plane, the antenna unit has a common mode port, each common mode port comprises two single ports, an active common mode reflection coefficient of the common mode port of the antenna unit is equal to half of the sum of common mode reflection coefficients of the two single ports, the common mode reflection coefficient of the single port is calculated first, and the active common mode reflection coefficient of the common mode port is indirectly obtained; the application has the advantages that the calculation process is simplified, the calculation amount is small, the time consumption is relatively short, and the application is beneficial to popularization and application in engineering practice.

Device for unlocking the door (1) of a vehicle, comprising an actuating element (2) consisting of an actuating section (27) and a flexibly unwindable band section (28) which is connected to a Bowden cable (11), wherein the Bowden cable (11) and the actuating element (2) are arranged on a base plate (9) and / or a door, and the actuating element (2) is connected to a rotatably arranged loop lever (5) such that when the loop lever (5) is rotated by the actuating element (2), the Bowden cable (11) connected to the loop lever (5) is movable, characterized in that the loop lever (5) has a preferably circular loop lever section (8) on which the actuating element (2) partially rests.