52results about How to "Processing is not difficult" patented technology

The invention relates to an efficient solar energy thermal absorber based on an optical-thermal absorbing cone structure. The efficient solar energy thermal absorber based on the optical-thermal absorbing cone structure comprises a sealing cover, an insulating tube sleeve, an airflow tube, a thermal absorbing body, a glass cover and a thermal absorbing fastening piece. The efficient solar energy thermal absorber is characterized in that the thermal absorbing body is in a truncated prism structure and each plane can be manufactured separately. Each plane is respectively an optical-thermal absorbing conic board, a plurality of sharp pyramids are distributed on a surface of each plane and each plane is made of a high thermal conductive porous material. The glass cover is in a circular truncated cone shape. A closed containing cavity is formed by the sealing cover, the thermal absorbing body and the glass cover. Air enters into the containing cavity through an air inlet of the sealing cover and is heated through each porous medium optical-thermal absorbing conic board so that solar energy is taken and finally flows out from an outlet end of the thermal absorber along the airflow tube. The efficient solar energy thermal absorber based on the optical-thermal absorbing cone structure has the advantages of solving the problems that an existing thermal absorber is low in thermal absorbing efficiency, difficult to process, large in loss in inner flow and the like, being used independently and in a combined mode through connectors, being mainly applicable to a solar energy thermoelectric conversion system and guaranteeing efficient operation of the system.

The invention relates to a component prism-based phase diversity wavefront sensor comprising a lens, a component prism, a CCD imaging detector, and a computer system. After a parallel light beam containing wavefront distortion passes through the lens and is focused, the focused light beam is vertically irradiated on a front surface of the component prism; after the light beam passes through the component prism, an incident light beam is split into two beams of lights; and two beams of lights emitted by the component prism are imaged on a CCD photosensitive surface, wherein there is a fixed light path difference between the two beams of lights. According to the invention, the optical structure of the sensor is simple; the CCD imaging detector can simultaneously collect a focal plane light intensity distribution image and a defocused light intensity distribution image, so that the synchronism and the real-time property of the two images can be ensured as well as detection precision of the phase diversity wavefront sensor on dynamic aberration and restorability on an expansion object can be effectively improved; and moreover, the provided phase diversity wavefront sensor has obvious advantages in fields like optical detection, adaptive optics, high resolution imaging and the like.

The invention relates to a quick positioning method for a tunnel curtain grouting hole. Before using the positioning device, the effective length of a telescopic rod is adjusted according to the construction sequence of the 'first an outer ring and then an inner ring', and then an extension angle is drilled according to the design of each grouting hole position on the outer ring to adjust the inclination of a positioning steel ring; after the positioning device is adjusted, a hoop is nested on an orifice tube; at this time, the positioning steel ring is aligned with the highest position of thegrouting hole in the outer ring, and a circle is drawn along the inner edge of the steel ring to quickly position for a drill pipe to drill; similarly, the telescopic rod is rotated several times andall grouting holes in the outer ring can be sequentially and quickly drawn according to the same included angle; the mode is repeated and the effective length of the telescopic rod is adjusted so that other grouting hole positions can be quickly positioned, the construction radius can be adjusted by changing the length of the telescopic rod, while a plane angle disc and an extension protractor can change the angle of the positioning steel ring. After the length of the telescopic rod and the angle of the extension protractor are determined, the same ring of grouting holes can be quickly positioned, and the construction efficiency is high.