31results about How to "Realize multiple angles" patented technology

The embodiment of the invention discloses a steel structure and concrete pre-buried connection structure. The steel structure and concrete pre-buried connection structure comprises a concrete body, asteel structure body and a connecting part pre-buried in the concrete body, the connecting part comprises a connecting body, a positioning seat, a movable clamping claw sleeve, a plurality of first bolts and a plurality of first nuts, the connecting body is fixedly connected with the concrete body, the positioning seat is fixedly connected with the connecting body, the movable clamping claw sleevesurrounds the positioning seat and is rotatably connected to the positioning seat in a sleeving mode, all the first bolts are inserted in positioning inserting holes formed by the positioning seat and the movable clamping claw sleeve, all the first nuts sleeve all the first bolts, the first nuts and the first bolts are arranged on the two sides of the positioning inserting holes in an abutting mode correspondingly, the movable clamping claw sleeve is provided with a plurality of clamping claws, and the steel structure body is fixedly connected with the clamping claws. Through the steel structure and concrete pre-buried connection structure, the steel structure body and the concrete body are detachably connected in multi-angle mode, the structure is simple, and applicability is high.

This application discloses a space nano-positioning and detection device and method for evaluating the performance of microscopic vision measurement, including a space nano-positioning platform, a displacement sensor and a controller; wherein, the trajectory tracking accuracy of the space nano-positioning platform is better than 10 nanometers, and the displacement The measurement accuracy of the sensor is better than 2 nanometers, both of which are better than trajectory tracking and better than the measurement accuracy of the microscopic vision measurement system to be evaluated; the space nano-positioning platform carries the microscopic vision observation object, and performs positioning with specific trajectory and precision. Meet the needs of microscopic vision measurement; the displacement sensor detects the displacement of the nano-positioning platform; the controller realizes the multi-degree-of-freedom nano-motion in space, and evaluates the performance of microscopic vision measurement in real time; this application implements a microscopic vision measurement system The utility model and method are small in size, all-round, multi-angle, high-precision and automatic.

The invention discloses a multi-material combined recognition method and a multi-material combined recognition device based on ultra-wideband phased array layer-by-layer focusing. The multi-material combined recognition device based on the ultra-wideband phased array layer-by-layer focusing comprises an equipment control module, a signal transceiving module, a signal processing module and a curve parameter extracting module, wherein the signal transceiving module is connected with the signal processing module; the signal processing module is connected with the curve parameter extracting module; and the signal transceiving module, the signal processing module and the curve parameter extracting module are connected with the equipment control module. The multi-material combined recognition method based on the ultra-wideband phased array layer-by-layer focusing comprises the following step: according to a measured reflection coefficient curve measured value and an intrinsic reflection coefficient experience curve, extracting an electromagnetic parameter of each material layer so as to achieve material recognition. The multi-material combined recognition device based on the ultra-wideband phased array layer-by-layer focusing is simple in structure and has the characteristics of high recognition precision, safety and portability. By the multi-material combined recognition method and the multi-material combined recognition device, an object to be detected can be recognized from multiple sections, multiple angles and multiple depths, and dynamic focusing regulation can be achieved; and the multi-material combined recognition method and the multi-material combined recognition device can be applied to recognition of industrial materials and quality inspection of agricultural products.

An interference lithography system, comprising a phase element, a first lens, a second lens, a third lens, a fourth lens and an axicon lens group, the phase element, the first lens, the second lens, the third lens, and the fourth lens are along The propagation direction of the optical axis is arranged in sequence, the first lens and the second lens form a group of 4F imaging system, the third lens and the fourth lens form another group of 4F imaging system, and the axicon lens group is movably arranged along the propagation direction of the optical axis Between the third lens and the fourth lens. The interference lithography system of the invention has simple structure, low manufacturing cost, and can realize multi-angle and variable-period interference lithography. The invention also relates to a printing device and an interference lithography method.