42results about How to "With regulation" patented technology

The invention discloses a two-dimensional multi-shell hollow sphere ordered structure array and a preparation method thereof. The array is a single-layer hollow sphere array orderly and hexagonally arranged on a conductive substrate, wherein the outer diameter of each hollow sphere is between 230 nanometers and 10.7 mu m; the outer surface of each hollow sphere is a rough surface; each hollow sphere consists of a metal gold inner wall and more than two layers of different materials alternatively covered on the metal gold inner wall; and the rough surface consists of particles. The method comprises the following steps of: performing ion sputtering on the conductive substrate on which a single-layer colloidal crystal template is arranged to deposit a gold film; putting the conductive substrate to which a gold film wall is adhered into an electrolyte; electrically depositing under the deposition current density of between -1.0 mA / cm<2> and 1.0 mA / cm<2> for 10 seconds to 3 hours to obtaina single-layer composite array; putting the single-layer composite array into different electrolytes for more than one time; electrically depositing under the same technological condition; and putting the single-layer composite array into a methylene dichloride solvent to remove polystyrene colloidal spheres to obtain a product. The array and the method can be widely applied to the fields of pharmaceutical engineering, cosmetics, biotechnology, photo-catalysis, photonic devices and the like.

The invention discloses a thin film material flexoelectric coefficient measuring device capable of regulating and controlling strain gradient and a method thereof. The device having a sandwich structure formed by two layers of matrix beams with the same lengths, widths and thicknesses and a test film which is arranged between the two layers of beams and has the same length and width as the beams comprises a four-point 1 / 4 bending clamp including two upper pressing heads and two stress supporting pieces, a small-load loading instrument for loading the four-point 1 / 4 bending clamp, a controllerbeing connected with the small-load loading instrument and being used for controlling the loading force and loading frequency, and a charge amplifier and an oscilloscope sequentially connected with the small-load loading instrument. Under loading control of four-point 1 / 4 bending clamp force application points, namely two upper pressing heads, regulation and control of strain gradient in flexoelectric coefficient measurement are realized; the method is simple, the structural model is low in cost and easy to implement, the difficulty of strain gradient control in flexoelectric coefficient measurement is reduced, and the difficulty of flexoelectric coefficient measurement of the thin film material is reduced.

The invention discloses an L-band three-cavity high-power microwave device, which comprises a circular waveguide sleeve and an inner conductor coaxial with the circular waveguide sleeve; one end of the circular waveguide sleeve is provided with a cathode coaxial with the circular waveguide sleeve, and the cathode The opening of the cathode is ring-shaped, the inner diameter of the cathode is 60mm, and the outer diameter is 69mm; the circular waveguide sleeve is sequentially provided with a reflection cavity, a resonant cavity and an extraction cavity with the same inner diameter along the electron beam transmission direction, and the reflection cavity, the resonant cavity and the extraction cavity are The annular groove is set on the circular waveguide sleeve; the axial length of the microwave device is 130mm, the maximum diameter is 150mm, and the diameter of the inner conductor is 40mm; the intensity of the cathode emission beam is 7.0kA under the voltage of 400KV, the inner diameter is 60mm, and the outer diameter is 69mm The circular electron beam is transmitted in the microwave device under the guidance of the axial magnetic field of 0.4T, and the L-band high-power microwave with a frequency of 1.92GHz is radiated within a pulse time. The L-band three-cavity high-power microwave device of the present invention has the advantages of miniaturization, light weight and easy adjustment.

The invention relates to a guide adjustment device for a three-dimensional Hopkinson transmission compression rod, comprising a vertically arranged main support frame and an auxiliary support frame, the main support frame and the auxiliary support frame are coaxial annular structures of different sizes, and the The circumference of the main support frame and the auxiliary support frame are fixedly connected with three load-bearing parts for obliquely piercing the pressure rods and realizing the axial sliding of the pressure rods. The axes of the passages of two adjacent load-bearing components on the top are perpendicular to each other. The guide adjustment device of the three-dimensional Hopkinson transmission pressure rod can be well adjusted, has a buffer function, has low cost, and has high innovation.