35results about How to "Mass-produced" patented technology

The invention relates to the field of flexible and transparent gas sensors, in particular to a flexible and transparent gas sensor based on semiconducting single-wall carbon nanotubes and a preparation method thereof, and uses semiconducting single-wall carbon nanotube flexible transparent films to construct a high-performance flexible gas sensor . Using semiconducting single-walled carbon nanotubes as gas-sensing materials, using floating catalyst chemical vapor deposition to prepare and collect semiconducting single-walled carbon nanotube films, and prepare semiconducting single-walled carbon nanotubes loaded on flexible transparent substrates by hot-press transfer or spraying process The flexible and transparent film of single-walled carbon nanotubes is connected to the external output device by using silver glue or electroplating connecting wires to complete the assembly of flexible and transparent gas sensor elements of semiconducting single-walled carbon nanotubes. The invention realizes the preparation of small, light, flexible, transparent, bendable, and high-performance gas sensors, and breaks through the limitations of current metal oxide gas sensors in terms of flexibility, transparency, bendability, and weight.

The invention discloses an MEMS deformable mirror based on lever amplification principle, comprising at least two lever amplification electrostatic drivers, at least two articulated beams, at least one supporting structure and a mirror surface; the lever amplification electrostatic drivers are connected with the supporting structure via the articulated beam, the supporting structure is connected with the mirror surface via a connector, and the lever amplification electrostatic drivers are composed of an anchor point, a cantilever beam, an upper pole plate and a lower pole plate, the long arm thereof is connected with the articulated beam, the short arm thereof acts on the upper pole plate, and the anchor point and the lower pole plate are fixed on the same plane. The electrostatic drivingMEMS deformable mirror based on lever amplification in the invention not only has the advantages of common MEMS apparatuses, which has small volume and light weight, has no hysteresis effect, and canrealize array and mass production, but also reduces the influence of electrostatic drawing-in phenomenon by lever amplification, improves stroke and can be widely used in the field of adaptive optics.

The invention discloses an optical fiber vibration sensing head, which consists of a vibration sensitive chip, a dual fiber collimator and an encapsulation shell, wherein the inside of the encapsulation shell under the dual fiber collimator is provided with a cavity, the vibration sensitive chip is arranged in the cavity and consists of micro light reflector, a silicon supporting frame and a substrate glass sheet; the silicon supporting frame is bonded with the substrate glass sheet; the micro light reflector is arranged in the silicon supporting frame; a damping air cavity is reserved between the micro light reflector and the substrate glass sheet; two sides of the micro light reflector is symmetrically provided with torsion shafts; and one end of each of the torsion shaft is connected with the silicon supporting frame. An MEMS process is used to integrate a MEMS vibration sensitive chip. Based on an asymmetric torsion micro light reflector structure, the MEMS vibration sensitive chip can be manufactured in batch. The torsion shafts are used as elastic elements, and the micro light reflector is used as a sensitive mass block to reflect vibration acceleration. The damping air cavity is used for controlling the damping characteristic of torsion. The invention has the advantages of batch production, low cost and high consistency.

The invention provides a silicon-based gas sensitive chip of integrated humiture sensor and a manufacturing method of the silicon-based gas sensitive chip, relating to environment monitoring technology and aiming to solve the problem that a silicon-based chip doesn't have an integrated gas-sensitive unit. A plurality of gas-sensitive units, a temperature sensitive unit, and a humidity sensitive unit are integrated on one N-type monocrystalline silicon wafer, a secondary heat insulation through hole having a rectangular cross section is arranged between every two adjacent units, and in each gas-sensitive unit, a primary heat insulation through hole having a trapezoidal cross section is arranged between every two adjacent electrode lead wires. The four corners of each of the rectangular cross section and the trapezoidal cross section are arranged in an arc transition manner. The chip can monitor the humiture indexes of environment and can monitor various gases, and the two-stage heat insulation can meet the different work temperature requirement of different units. The heat insulation holes are subjected to arc transition instead of sharp angle, so that the array chip has the advantages of multifunctional measurement, good selectivity, high mechanical strength, high reliability, and low power consumption, and is suitable for environment monitoring.

The invention belongs to the technical field of temperature measurement, and discloses a temperature sensor based on an arrayed waveguide grating. In the invention, a single-wavelength laser is input to an arrayed waveguide grating with at least two output channels as a temperature sensing element, and the The light intensity of the two output channels of the arrayed waveguide grating is monitored to obtain the temperature value of its environment, so as to realize the purpose of temperature sensing. The present invention also provides a temperature sensing method realized by using the above sensor. Compared with other optical fiber sensors, the present invention is not affected by laser power fluctuation or frequency drift, and has relatively high precision. The invention can be used for temperature monitoring, monitoring or fire prevention in various environments such as strong electromagnetic interference.

The invention discloses a preparation method for a silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane. The method comprises the steps that temperature stimuli responsiveness monomers and functional monomers with heat reactivity groups are copolymerized to form a polymer with the temperature stimuli responsiveness by adopting a free radical polymerization method; the polymer is dissolved in deionized water at room temperature, proper silver nitrate is added into the deionized water with the polymer, the mixture is mixed evenly, and the silver ions in the mixture are reduced to silver nanoparticles through ultraviolet light irradiation; electrostatic spinning is conducted on a polymer aqueous solution with the silver nanoparticles, and the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane is obtained. According to the preparation method for the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane, the hybrid nanofiber membrane is prepared by adopting an electrostatic spinning method, in the preparation process, water is adopted to serve as the solution, mild conditions are achieved, and harmful and poisonous products are not produced; the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane can be stored in the water stably, dissociation does not occur, the temperature stimuli responsiveness is achieved, and the silver-loaded nano particle temperature stimuli responsiveness hybrid nanofiber membrane can be used for catalytic reaction or a substrate with the surface-enhanced Raman spectrum or antiseptic dressing.

Disclosed are an environmentally friendly brass alloy for casting and a manufacturing method therefor. The brass alloy is free of the elements selenium, tellurium, antimony, phosphorus, magnesium and manganese, and the components thereof are: 58-61.5 wt.% of Cu, ≤ 0.25 wt.% of Pb, 0.5-0.8 wt.% of Al, < 0.1 wt.% of Sn, < 0.1 wt.% of Ni, 0.02-0.15 wt.% of Fe, and 5-12 ppm of B, with the balance being Zn and inevitable impurities. In addition to excellent polishing performance and hot tearing resistance performance, the brass alloy has good comprehensive performance, and is suitable for casting formed bathroom plumbing parts.

The invention discloses an ink-printing preparation method of light-assisted thermoelectric devices: mixing binder, diluent, N-type or P-type thermoelectric material powder to obtain N-type thermoelectric ink and P-type thermoelectric ink; Or P-type thermoelectric ink is printed on the substrate, and after drying, P-type or N-type thermoelectric ink is printed on the substrate; after the substrate printed with thermoelectric ink is cured, the N-type thermoelectric ink and P-type thermoelectric ink The inks are connected in series to form a thermoelectric generation unit; two or more light-absorbing materials with different absorption rates are covered on the thermoelectric generation unit to obtain the final light-assisted thermoelectric device. The prepared light-assisted thermoelectric device comprises a substrate, a thermoelectric generation unit covered on the substrate, and a light-to-heat conversion unit covered on the thermoelectric generation unit. The invention provides a light-assisted thermoelectric device based on ink printing, which can collect light energy and heat energy at the same time, and has the characteristics of mass production and low cost.

The invention provides a photoelectric catalysis reactor taking a photocatalysis fuel battery as a power supply. The reactor consists of a photocatalysis fuel battery reactor A and a photoelectric catalysis reactor B which are connected by a conductor and a 10-ohm resistor. The reactor can reduce the use of additional electricity while increasing the quantum yield of TiO2. The photocatalysis fuelbattery reactor A takes a TiO2 nanotube as an anode and uses a 24W ultraviolet lamp for irradiation, and takes a platinum sheet as a cathode, and 0.01mol / L Na2SO4 as electrolyte. The photoelectric catalysis reactor B takes a TiO2 nanotube as an anode and uses a 24W ultraviolet lamp for irradiation, and is connected with the photocatalysis fuel battery by taking a platinum sheet as a cathode, and 0.05mol / L acetic acid and 0.01mol / L Na2SO4 as electrolyte. The reactor has the advantages of greatly improving the quantum yield of TiO2, thus further accelerating organic pollution degradation process of TiO2 photocatalysis by two times compared with the photocatalysis speed, being energy-saving, safe and efficient, and generating no harmful substances.

A high aspect ratio ultramicro tungsten electrode array and a preparation method thereof. The preparation method comprises steps of: first manufacturing copper splints, front baffles, side baffles and a pedestal; fixing the front baffles, the copper splints and the pedestal together; threading tungsten filaments through the front baffles respectively, placing two ends of each tungsten filament in grooves of the copper splints, and binding and fixing the tungsten filaments in the grooves at backs of the copper splints; fixing the copper splints respectively and repeatedly to prepare an m*n tungsten filament array; fixing the side baffles and the pedestal to form a cavity with the front baffles; casting epoxy resin into the cavity, solidifying and trimming the tungsten filaments; and dismounting the side baffles, the copper splints, the front baffles and the pedestal successively to obtain the high aspect ratio m*n ultramicro tungsten electrode array. Compared with other tungsten electrode arrays prepared by other methods, the ultramicro tungsten electrode array prepared by the method of the invention has characteristics of high aspect ratio, high precision, adjustable array, low costs and suitability for batch production.

The invention relates to a method for preparing products by a corrugated board. The method comprises the following steps of: ensuring that the corrugating directions on a stress face (whatever sizes) are the same and are not parallel to the stress face according to whether the products to be prepared are frequently stressed or not; cutting the corrugated board into a plurality of corrugated boardslices which have the structural shape of the products or the structural shapes of parts and components of the products; forming corresponding positioning pin holes in each corrugated board slice, and forming corresponding locking holes as required; and assembling the products to be prepared by mutually positioning, adhering and locking short pins or long pins through the positioning pin holes and the locking holes or locking and adhering all the paperboard slices through locking plates and buckling and locking rods or directly locking the locking plates and the buckling and locking rods. Thecorrugated board stereoscopic products prepared by the method have the characteristics of high integrity, capability of frequently bearing pressure, high interchangeability, aesthetics and mass production.

The invention discloses a production method of a colorful bone sample. The method comprises the steps of drawing a material, fixing the material, dyeing the fixed material, vitrifying the dyed material, and carrying out microscopic treatment, wherein a re-fixing step is arranged after the fixing step and before the dyeing step, and the re-fixing step is characterized in that an obtained animal sample is immersed and fixed in 60-95 V% alcohol at 0-4DEG C for 1-3d. The colorful bone sample produced in the invention has the advantages of beautiful profile, high transparence, high fidelity, short production period and realization of batch production.