6results about How to "The manufacturing process is easy to implement" patented technology

The invention provides a middle and far infrared broadband metamaterial absorber and a design method thereof. The middle and far infrared broadband metamaterial absorber comprises metamaterial absorption units which are arranged in a periodic array mode. The whole metamaterial absorption unit is square and comprises a top metal layer, a dielectric layer and a bottom metal layer from top to bottom in sequence. The top metal layer is attached to the upper surface of the dielectric layer and is formed by arranging eight metal sheets according to a certain arrangement mode, namely a circular metal sheet which is arranged at the central position of the upper surface of the dielectric layer, and the center of the circular metal sheet is aligned with the center of the upper surface of the dielectric layer; three annular metal sheets concentric with the circular metal sheet surround the periphery of the circular metal sheet, and gaps exist between the circular metal sheet and the annular metal sheet on the innermost layer and between the annular metal sheets on the adjacent layers from inside to outside. And the four metal square sheets with the same size are respectively arranged at four corners of the upper surface of the dielectric layer. The absorption bandwidth is greatly prolonged, and perfect absorption of a target wave band can be infinitely approached by adjusting geometric parameters of the absorber.

The invention provides a device for preparing spherical metal powder for 3D printing, and relates to the technical field of 3D printing material preparation. The device for preparing spherical metal powder for 3D printing comprises a frame, wherein a front support, a middle support and a rear tail support are arranged on the frame; the front support is mounted on the frame, a material ejecting component is mounted on the front support, and a clamping block is arranged on the material ejecting component; a loading rack is mounted on the middle support, a plurality of material accommodating channels are opened on the loading rack, a clamping component is arranged in the material accommodating channels, and a clamping groove is arranged on the clamping component; a rotating cylinder is connected to the middle support; an unlocking mechanism is arranged on the material ejecting component or the clamping component; the unlocking mechanism can realize rapid engagement when the material ejecting component is engaged with the clamping component, and can realize rapid disengagement when the metal bar is replaced, which not only makes the operation more convenient and simple, but also can effectively save the time consumed in replacing the metal bar, and is very beneficial to improving the overall work efficiency and processing speed.

This invention discloses a horizontally symmetry-axis-weighted interdigitated surface acoustic wave (SAW) Morlet wavelet processor and processing system, belonging to the technical field of SAW wavelet transform processors. The SAW Morlet wavelet processor includes a piezoelectric substrate and transmitting and receiving transducers integrated at both ends of the piezoelectric substrate. The transmitting transducer converts the received input signal into a SAW wavelet transform signal propagating along the surface of the piezoelectric substrate. The receiving transducer receives the SAW wavelet transform signal and converts it into an electrical wavelet transform signal for output. The length of the horizontal symmetry axis of each interdigitator is proportional to the envelope amplitude of the Morlet binary wavelet function, and the acoustic aperture is greater than or equal to the wavelength of the SAW wave. This invention can efficiently suppress diffraction phenomena, achieving a comprehensive performance improvement and providing strong support for technological upgrading and innovative development in various fields.

The present invention provides a ginger thick paste drink preparation technology, which comprises the following steps: S1: ginger selection, S2: cleaning, S3: airing, S4: ginger segment cutting, S5: ginger slice preparation, S6: stir-frying, S7: ginger decoction preparation, S8: paste preparation, and S9: cooling, the ginger thick paste drink prepared by the ginger thick paste drink and the preparation technology provided by the invention has the advantages of significant curative effect, good taste, low preparation cost, etc. The traditional Chinese medicine composition mainly has remarkable curative effects on lung cold, stomach cold, uterus cold, diarrhea, cold cough and the like, and the preparation process provided by the invention is convenient to implement and does not need excessive cost investment, so that the cost of the product can be effectively controlled, and the traditional Chinese medicine composition has great economic value and social value.

The present invention discloses a terahertz metamaterial sensor with dual polarization direction tunability and a preparation method thereof. The terahertz metamaterial sensor with dual polarization direction tunability comprises N×N structural units arranged periodically on a plane, each structural unit is in the shape of a cuboid, each structural unit comprises a dielectric layer and a graphene layer arranged on the dielectric layer, the graphene layer is two concentrically nested graphene ring structures, wherein the inner ring is a complete graphene ring, and the outer ring is a split graphene ring; the top view of the outer ring is composed of a relative left split ring and a right split ring, wherein the upper and lower notches of the left split ring are on the same vertical vertical line, and the upper and lower notches of the right split ring are also on the same vertical vertical line, but they do not overlap with the upper and lower notches of the left split ring. The terahertz metamaterial sensor of the present invention has two transparent windows in both polarization directions, a wide control range, and high sensitivity.

The invention provides an ultraviolet absorption enhancement type semiconductor film and a preparation method and application thereof. The ultraviolet absorption enhancement type semiconductor film comprises a substrate, an aluminum middle layer and an aluminum nitride dielectric layer, wherein the aluminum middle layer and the aluminum nitride dielectric layer are sequentially arranged on the surface of one side of the substrate in a stacked mode. According to the ultraviolet absorption enhanced semiconductor film, the reflection of the upper surface of the ultraviolet absorption enhanced semiconductor film with the thickness of several nanometers tends to zero under the combined action of interface phase shift and absorption phase shift, so that the light absorption of the semiconductor layer is increased. The light absorption intensity is enhanced under the condition that the thickness of the ultraviolet absorption enhanced semiconductor film is ensured to be small, so that the response speed of the photoelectric detector is improved.