3results about How to "Realize precise measurement" patented technology

This invention relates to a track inspection trolley for precision track measurement with automatic fine-tuning. It includes a track measurement trolley and automatic fine-tuning mechanisms mounted on both sides. An industrial computer mounted on the trolley's computer tray is equipped with host computer software. This software remotely controls an automatic total station via wireless communication, locking and tracking a precision measuring prism, dynamically and continuously measuring the prism's coordinates, and reading data from the trolley's tilt and gauge sensors. Simultaneously, it calculates the horizontal and vertical deviations of the track at the current mileage position and sends the deviation values ​​and directions to the automatic fine-tuning mechanisms mounted on both sides of the trolley. Based on the deviation values ​​and directions, the automatic fine-tuning mechanisms control a motor to rotate a sleeve, turning a fine-tuning screw to adjust the track's horizontal and vertical alignment to the designed position. This invention achieves precise measurement of the horizontal and vertical deviations of the left and right tracks and automatically completes the adjustment simultaneously, significantly improving track fine-tuning efficiency.

This invention discloses an integrated laser ranging and communication method based on baseband signal combining modulation: Step 1: On satellite A, a laser emitter generates laser light; Step 2: The power ratio of the communication signal to the pseudocode signal is set to P; Step 3: The communication signal and the pseudocode signal are input into a microwave combiner for combining, and then enter the MZM to obtain the modulated laser; Step 4: The modulated laser light enters an optical amplifier and is then emitted; Step 5: On satellite B, an optical antenna receives the signal light; a local oscillator laser generates a light wave; Step 6: The light wave and the signal light are mixed in a coherent receiving module to generate two orthogonal intermediate frequency signals; Step 7: The signal processing module performs carrier synchronization on the two orthogonal signals and sends them to the communication demodulation unit and the pseudocode acquisition and tracking unit. This invention achieves the goal of integrating precision measurement and laser communication with minimal impact on the signal-to-noise ratio of the communication link.

The utility model discloses a pretightening force tool, and particularly relates to the technical field of motor nut pretightening force regulation and control, the pretightening force tool comprises a base, a regulation and control detection assembly is arranged on the base, the regulation and control detection assembly comprises an electric push rod arranged at the top of the base, and an electric push rod is arranged at the top of the electric push rod. According to the utility model, through the corresponding cooperative use of each structure, the mechanical adjustment and precise measurement of the pre-tightening force are realized, the problems of low precision and poor efficiency of the traditional manual operation are solved, and the coaxial arrangement of the pull and push dynamometer and the dial gauge ensures the accuracy of the measurement of the force value and the deformation amount.