16results about How to "Fast response" patented technology

The invention discloses a micro electro mechanical system semiconductor hydrogen sensor and a preparation method thereof. The sensor comprises SnO2, Au and ZnO layers, a micro heating plate substrate and a ceramic substrate which are arranged from top to bottom, the method comprises the following steps: mounting a target material on a target position; stabilizing the micro heating plate substrate on a heating table; vacuumizing the sputtering chamber to enable the vacuum degree of the sputtering chamber to be below 5 * 10 <-3 > Pa; argon is introduced into the cavity until the pressure in the cavity reaches about 1 Pa; a ZnO film with the thickness of 50-200 nm is formed on the surface of the micro heating plate substrate; an Au film with the thickness of 2-10 nm is formed on the surface of the ZnO film, and a ZnO-Au composite material is obtained; and forming a SnO2 thin film with the thickness of 4-10nm on the surface of the Au thin film to obtain the ZnO-Au-SnO2 sandwich sensitive composite film. The sensor is high in response speed, short in recovery time and high in detection precision, and the hydrogen sensor with the high response value can be prepared through the method.

The invention provides a freeze-thaw enhanced low-energy PEDOT: PSS composite fiber-based artificial synapse transistor and application thereof.The fiber-based artificial synapse transistor is composed of a source-drain fiber electrode, a grid fiber electrode and an ionic gel electrolyte, the source-drain fiber electrode and the grid fiber electrode are prepared from PEDOT: PSS composite fibers, PEDOT: PSS, an anti-freezing agent and a polymer serve as base materials, and the ionic gel electrolyte is prepared from PEDOT: PSS composite fibers. The anisotropic composite fiber electrode which is high in strength, short in energy dissipation path and stretchable is prepared through freeze-thaw pretreatment and a wet spinning technology. The freeze-thaw enhanced low-energy consumption PEDOT: PSS composite fiber-based artificial synapse transistor provided by the invention is high in switching ratio, high in response rate, low in energy consumption, excellent in synapse plasticity and good in pulse cycle stability, and has a huge application prospect in the fields of brain-computer interfaces, human-computer interaction, smart medical treatment, intelligent electronic fabrics and the like.

The invention provides a thermoelectric driving fiber-based organic electrochemical synapse transistor and a preparation method and application thereof, and the thermoelectric driving fiber-based organic electrochemical synapse transistor is composed of a thermoelectric energy supply device, a fiber-based organic electrochemical synapse transistor and wires for connecting all parts. The thermoelectric energy supply device comprises a P-type thermoelectric fiber and an N-type thermoelectric material, and the fiber-based organic electrochemical synaptic transistor comprises a source-drain fiber electrode, a grid fiber electrode and an ionic gel electrolyte. According to the thermoelectric energy supply device prepared based on the Seebeck effect, conversion from heat energy of the human body to electric energy can be achieved, and stable energy supply to the synaptic transistor can be achieved. The integration of the thermoelectric energy supply device and the fiber-based organic electrochemical synaptic transistor has a wide application prospect in the fields of medical treatment, intelligent materials and wearable equipment.

The invention discloses a mini air pump for tire inflation, and relates to the technical field of inflation pumps, the mini air pump comprises a front cover, a rear cover and a box body enclosed by the front cover and the rear cover, and further comprises a locking assembly arranged on one side of the front cover and used for fixing an accessory box and an air pressure piston assembly arranged in the front cover and the rear cover, the air pressure piston assembly is arranged in the box body, an air inlet of the air pressure piston assembly is connected to an air inlet groove in the box body, the storage battery and the motor core are arranged in the box body in parallel, the space occupied area of the storage battery and the space occupied area of the motor core are optimized and reduced, the specification of the whole air pump can reach 90 mm * 90 mm * 37 mm, and the size of the whole air pump can reach 90 mm * 90 mm * 37 mm. And meanwhile, through the arranged air tap connector, an air pipe is not needed, an air pump can be directly connected to a tire of an automobile or a bicycle for inflating, and the tire inflating efficiency of people is improved.

The invention discloses a novel fluorescent probe based on triphenylamine and a preparation method and application thereof, the preparation method comprises the following steps: S1, dissolving 4-methoxyaniline and 1-bromo-4-iodobenzene in a solvent A, and then adding copper iodide, 1, 10-phenanthroline and potassium tert-butoxide for reaction to obtain a compound 1; s2, dissolving the compound 1 obtained in the step S1, (5-formylthiophene-2-yl) boric acid and anhydrous potassium carbonate in a solvent B, and then adding PdCl2 (dppf) for reaction to obtain a compound 2; and S3, dissolving the compound 2 obtained in S2 and malononitrile in a solvent C, and then adding triethylamine for reaction to obtain the TPA-CN probe. The TPA-CN probe is used for monitoring exogenous and endogenous SO2 and viscosity change in living cells. According to the invention, dual imaging of SO2 and viscosity in a biological system and a food sample can be realized.

The invention relates to an electro-hydraulic proportional navigation control valve capable of achieving full-automatic navigation and a tractor, the control valve comprises a double-acting oil cylinder, a steering gear, a pump, a first valve, a second electromagnetic valve, a third valve, a fourth electromagnetic valve and a fifth electromagnetic valve, the first valve is provided with a first connector, a second connector, a third connector, a fourth connector, a fifth connector, a sixth connector, a seventh connector, an eighth connector and a ninth connector, the second electromagnetic valve is provided with a tenth connector and an eleventh connector, and the two ends of a valve cavity of the third valve form a third cavity and a fourth cavity. The third valve is provided with a twelfth interface, a thirteenth interface, a fourteenth interface, a fifteenth interface and a sixteenth interface, the fourth electromagnetic valve is provided with a seventeenth interface, an eighteenth interface and a nineteenth interface, and the fifth electromagnetic valve is provided with a twentieth interface, a twenty-first interface and a twenty-second interface. The system has the advantages that the system has the function of quick switching response between a manual mode and an automatic mode, has a load compensation function, and is accurate in control and high in response speed.

The invention relates to poly (p-hydroxystyrene) photoresist film-forming resin and a preparation method thereof, relates to the technical field of photoresist materials, and is used for solving at least one of the problems of relatively wide molecular weight distribution, uncontrollable molecular weight and the like of the film-forming resin prepared by the existing method. According to the method disclosed by the invention, free radical polymerization reaction is carried out under photo-initiation through a reversible addition-fragmentation chain transfer polymerization technology, so that the reversible inactivation reaction of free radicals in a polymerization reaction system is controlled, the molecular weight distribution of the synthesized deep ultraviolet photoresist film-forming resin (poly-p-hydroxystyrene photoresist film-forming resin) is narrow, the PDI is less than 1.2, the reaction is instantly controlled, and the film-forming effect is good. The reaction conditions are mild; the energy consumption is low; and the product is easy to separate and purify.

In order to solve the problems that an existing temperature-sensitive color developing layer containing a temperature-sensitive color developing material is low in color-changing sensitivity and slow in temperature response, the temperature-sensitive color developing assembly comprises a transparent film layer, a color-changing hydrogel layer and a non-transparent film layer, the color-changing hydrogel layer is arranged between the transparent film layer and the non-transparent film layer, and the color-changing hydrogel layer is arranged between the transparent film layer and the non-transparent film layer. The color-changing hydrogel layer comprises a first color-changing hydrogel area, a second color-changing hydrogel area and an nth color-changing hydrogel area, n is greater than 2, the color developing temperature of the first color-changing hydrogel area is T1, the color developing temperature of the second color-changing hydrogel area is T2, the color developing temperature of the nth color-changing hydrogel area is Tn, and T1 < T2 < Tn. According to the temperature sensing type color developing assembly, the temperature response rate is increased, the length of the color developing strip is gradually increased along with the gradual increase of the temperature, the response rate is high, the color is clear, and the sensitivity is high.

The invention relates to meteorological instruments and microelectronic technologies, in particular to a platinum resistor chip for high-altitude temperature observation and an FIB punching process, the platinum resistor chip comprises a rectangular base and a platinum resistance wire, and the rectangular base is of a horizontal frame structure; the platinum resistance wire is installed on the rectangular base, and continuous holes are formed in the part, located on the hollowed-out area, of the platinum resistance wire in the length direction of the platinum resistance wire; the holes in the platinum resistance wire in the hollow area are divided into a middle area and auxiliary areas at the two ends of the middle area; the hole spacing of the middle area is smaller than that of the auxiliary area; and two ends of the platinum resistance wire are leads. The mass of the platinum resistance wire is reduced, the ventilation quantity is increased, so that the platinum resistance wire cannot be damaged due to excessive wind power, meanwhile, the cross sectional area of current is reduced, the resistance value of the platinum resistor is increased, and the temperature influence caused by different materials between the platinum resistor and a bonding pad or a wire except for solar radiation is greatly reduced; therefore, the measurement of the high-altitude environment temperature is more accurate, and the response rate is higher.

The application discloses a kind of high-sensitivity thermal sensitive coating of nanomaterial and preparation method thereof, wherein, high-sensitivity thermal sensitive coating of nanomaterial includes the following components by mass fraction: base component 30-50 parts;Hydroxylated nanometer bismuth acid lanthanum 5-12 parts;Amino-modified nanometer tin oxide antimony 4-10 parts;Polyimide-coated nanometer europium vanadate 3-8 parts;Dispersing agent 2-6 parts;Film forming agent 3-7 parts;Anti-aging agent 1-3 parts;Solvent 15-30 parts;The present application is high in thermal sensitivity, by designing hydroxylated nanometer bismuth acid lanthanum, amino-modified nanometer tin oxide antimony, polyimide-coated nanometer europium vanadate three kinds of innovative thermal sensitive components, synergistic effect of three, can significantly improve the thermal sensitive response sensitivity of coating, the thermal sensitive response sensitivity of coating is ≤0.1 DEG C, far higher than existing thermal sensitive coating (0.5 DEG C or more), can satisfy the demand of high-precision temperature detection.

The invention discloses a near-infrared fluorescence analysis method for rapid detection of iodine ions, comprising: S100, preparation of compound CyN, S200, construction of probe CyN-Cu, S300, spectral detection, S400, selective experiment, S500, detection of iodine ions, S600, detection of actual samples. The invention has the beneficial effect that the invention constructs a near-infrared fluorescent probe CyN-Cu. According to the redox reaction between iodine ions and copper ions, copper ions are separated from CyN, and the fluorescence intensity of the system is significantly restored, thus establishing an "off-on" type near-infrared fluorescence enhanced detection method. ‑ Method, I ‑ The concentration is linearly related to the change of the fluorescence intensity of the system in the range of 0.1μmol / L to 5mmol / L, and the fitting equation is y=2.3621x+1.1471, R2=0.9987, and the detection limit is 65nmol / L. Compared with other methods, this method has the advantages of simple synthesis, fast response rate (<100s), high selectivity and near-infrared emission. The probe response is not interfered by other anions and has been successfully applied to I ‑ Rapid testing.

The invention relates to the technical field of grain storage, and particularly discloses a hopper structure with a frequency conversion temperature adjusting function, the hopper structure comprises a hopper body, a temperature sensor, a frequency converter and a temperature adjusting device, the hopper body is hollow, the hopper body is provided with a feeding port and a discharging port, the feeding port is formed in the upper end of the hopper body, and the discharging port is formed in the lower end of the hopper body; the discharging port is formed in the lower end of the hopper body, the temperature sensor is arranged in the hopper body and used for monitoring the temperature in the hopper body in real time, the frequency converter is arranged on the hopper body and electrically connected with the temperature sensor to receive temperature signals, and the temperature adjusting device is arranged in the hopper body and used for adjusting the temperature in the hopper body. The temperature adjusting device is electrically connected with the frequency converter to adjust working frequency according to signals received by the frequency converter. The system has the effects that the temperature can be accurately controlled, the automation degree is high, and the energy efficiency ratio can be improved.

The invention discloses a heat pump system, a control method of the heat pump system, heat pump equipment and a storage medium. The heat pump system comprises an energy storage device and a refrigerant loop, energy storage substances are loaded in the energy storage device, the refrigerant loop comprises a compressor, a vortex tube, a first heat exchanger and a second heat exchanger, an exhaust port of the compressor is communicated with a fluid inlet of the vortex tube, the first heat exchanger is communicated with a first outlet of the vortex tube, and the second heat exchanger is communicated with a second outlet of the vortex tube. The first heat exchanger is communicated with a first outlet of the vortex tube, the second heat exchanger is communicated with a second outlet of the vortex tube, the first heat exchanger and the second heat exchanger are both in heat exchange connection with different areas of the energy storage device, the vortex tube is provided with a control valve, and the control valve is used for adjusting the first outlet temperature of the first outlet and the second outlet temperature of the second outlet. The invention aims to improve the temperature regulation efficiency of the energy storage device and ensure that the user requirements are accurately met.

The embodiment of the utility model discloses a heating roller and a heating device thereof. The heating roller mainly comprises a heated barrel and an electric control heating plate arranged in the heated barrel, and the outer wall face of the electric control heating plate and the inner wall face of the heated barrel are oppositely arranged to form heat transfer. In the embodiment of the invention, the electric control heating plate is arranged, and the electric control heating plate and the heated barrel are oppositely arranged to form a heat transfer form, so that the heated barrel can be directly heated through the electric control heating plate; and compared with a heat conduction oil heating mode, the electric control heating mode has the advantages that the response rate is higher, and the use effect is better.

This invention discloses a method for fabricating a quantum dot photodetector with a defect state density gradient distribution, belonging to the field of optoelectronic device technology. This invention introduces nitrogen vacancies and low-valence Ti defects within the quantum dot, utilizing the sub-bandgap energy levels formed by these defects to achieve near-infrared light absorption. A gradient defect distribution is set along the thickness direction of the light-absorbing layer, forming a gradient energy band and a built-in auxiliary electric field, promoting the separation of photogenerated carriers. The high electron concentration quantum dot layer near the electron transport layer can selectively extract electrons and block hole backflow. This invention eliminates the use of toxic lead-based quantum dot materials, resulting in a green and environmentally friendly device that combines excellent infrared response and carrier collection efficiency. The fabrication process is simple and low-cost, facilitating large-scale fabrication and making it suitable for near-infrared photodetector-related fields.

The invention discloses a bacterium self-triggering type halloysite composite antibacterial material and a preparation method thereof, and belongs to the field of nonmetallic mineral material and biological material engineering. According to the invention, hexadecyl tributyl phosphonium bromide and copper chloride capable of synergistically resisting bacteria are loaded in a halloysite lumen, and hyaluronic acid is used for wrapping and blocking the halloysite, so that responsive on-demand release and bacteria resistance of the antibacterial agent are realized. When hyaluronidase secreted by bacteria decomposes hyaluronic acid to seal the end, the antibacterial agent in the halloysite lumen is triggered and released, so that the synergistic antibacterial effect is achieved. The preparation method has the technical characteristics that the purity and the length of the halloysite, the loading conditions of the hexadecyl tributyl phosphonium bromide and the copper chloride and the operation parameters of the hyaluronic acid coated and terminated antibacterial halloysite are optimized, so that the bacterium self-triggering type halloysite composite antibacterial material can realize efficient, accurate, controllable and safe on-demand antibacterial effect. The technology can be applied to the fields of intelligent responsive antibacterial products, medical supplies, wound treatment and the like.