Abstract: A hand-held shoulder-carrying device includes a handle assembly, a shoulder-carrying assembly, a back plate assembly, and a quick-mounting assembly, wherein the handle assembly and the back plate assembly are respectively provided at two ends of the shoulder-carrying assembly. An upper side of the shoulder-carrying assembly is provided with a camera mounting position for mounting a camera, and a lower side of the shoulder-carrying assembly is provided with a shoulder support position for fitting a shoulder of a user. The back plate assembly is provided with a back support position for fitting a back of the user, and the quick-mounting assembly is provided at an upper end of the shoulder-carrying assembly. The quick-mounting assembly is provided with a quick-mounting assembly base and a quick-mounting assembly bottom plate, wherein the quick-mounting assembly base is configured to enable quick mounting without changing the base in the process of switching shooting equipment.

Abstract: A vehicle-mounted rocker arm without counterweight, includes a heading shaft, a pitching shaft part, an arm body, a damping arm, and a housing. The pitching shaft part includes a main structure frame, a rocker arm, a servo electric cylinder, and a gas spring. The gas spring can balance the weight loaded by the arm body so that the force exerted by the servo electric cylinder during stretching and contracting is balanced, so as to achieve the effect of balancing the longitudinal center of gravity of the arm body without using a counterweight. The vehicle-mounted rocker arm without counterweight is further characterized in that pitching shaft part and the rotating shaft are independent modules, and can be dismounted and installed separately. The vehicle-mounted rocker arm without counterweight is further characterized in that the arm body part has a truss type quick butting structure.

Abstract: An ultrasonic image scanning system for scanning an organic object includes a 2D array probe constructed with transducer elements in both azimuth and elevation dimension. There is a multiplexer disposed in one dimension to route the transducer elements to system front-end channels, while the other dimension can sum into the first dimension with various element number.

Abstract: An ultrasonic image scanning system for scanning an organic object includes a 2D array probe constructed with transducer elements in both azimuth and elevation dimension. There is a multiplexer disposed in one dimension to route the transducer elements to system front-end channels, while the other dimension can sum into the first dimension with various element number.