16 results about "Absorbed energy" patented technology

This application discloses a tactile sensor and its fabrication method. The tactile sensor includes a tactile membrane, an optical window, a cavity, a deformation structure, and a capacitor structure. The cavity is enclosed by a cavity wall and two opposing openings at both ends. The two openings respectively house the tactile membrane and the optical window. The deformation structure is located within the cavity and is used to absorb energy from an external light source. Under photothermal action, it deforms, thereby displacing the tactile membrane to generate tactile stimulation that can act on a target object. The capacitor structure converts the tactile stimulation into an electrical signal for tactile information acquisition. This application utilizes the deformation structure to deform within a certain temperature range, thereby displacing the tactile membrane and converting light energy into tactile output. This avoids the dependence of traditional light-driven tactile devices on closed air cavities, gas expansion, and suspended light-absorbing sheets, improving the structural stability and driving efficiency of the tactile sensor and increasing its environmental adaptability.

A method for multifocal energy gradient laser holographic cutting of hard and brittle materials includes the following steps: S1, determining the parameters of the incident beam and the high numerical aperture focusing objective; S2, determining the three-dimensional multifocal beam and parameters of the target hard and brittle material; S3, setting a two-dimensional linear phase distribution on the spatial light modulator plane as the initial phase for subsequent iterative calculations; S4, establishing a forward-backward propagation iterative loop based on phase optimization to calculate the multifocal holographic phase distribution; S5, superimposing a linear blazed grating phase on the multifocal holographic phase distribution, and generating a composite diffraction phase hologram using MATLAB code and inputting it into the spatial light modulator; achieving uniform holographic cutting with consistent actual absorbed energy in each layer. This invention features controllable three-dimensional focal positions, adjustable energy gradients along the depth direction at each focal point, strong deep-layer energy compensation capability, simultaneous aberration correction, and high consistency in cutting at different depths.

The invention provides a control method for participating in primary frequency modulation through cooperation of energy storage and photovoltaic, and belongs to the field of new energy power generation control. According to the scheme, the method comprises the steps that S1, the system state is monitored and collected in real time; s2, determining a reserve capacity correlation coefficient; s3, judging whether primary frequency modulation operation is executed or not according to the frequency; s4, when the frequency reaches the execution condition of primary frequency modulation, executing primary frequency modulation operation; and S5, outputting a frequency modulation instruction of the optical storage combined power station. The method has the advantages that the frequency modulation dead zone is self-adapted, and two occasions of stability and frequency modulation speed can be considered at the same time; the optical storage power station adjusting potential frequency modulation load shedding is different from a fixed load shedding mode, and the load shedding level can be adjusted in real time according to the power grid frequency deviation and the scheduling instruction, so that the standby capacity is accurately matched with the frequency modulation requirement; by means of frequency modulation power calculation, the power station can be rapidly discharged to supplement energy when the frequency is low and can also be rapidly charged to absorb energy when the frequency is high, and bidirectional control over power grid frequency fluctuation is achieved.

The invention provides a finite element numerical simulation method based on photo-thermal lens spectrum insulating oil furfural detection, and relates to the field of numerical analysis of an insulating oil detection technology. The method comprises the following steps: constructing a geometric model comprising insulating oil containing trace furfural, an optical window and a detection plane to obtain a pump beam and a probe beam; the refractive index in the pump beam propagation process is solved; presetting extinction coefficients corresponding to the furfural with different concentrations, and obtaining photothermal effect data of the multi-concentration furfural; calculating the temperature distribution after the insulating oil absorbs energy, and describing the change relation of the refractive index along with the temperature through a thermo-optical coefficient; insulating oil temperature distribution and pump beam propagation characteristics in a steady state are obtained; solving the thermal stress of the insulating oil to the optical window sheet under the excitation of the pumping light beam; non-isothermal flowing and fluid-solid coupling behaviors of the insulating oil under the thermal lens effect are simulated, and fluid solving is carried out; the influence of the thermal lens effect on probe beam propagation is solved; and light spot distribution of the detection probe light beam is obtained.

The application relates to the technical field of LED display equipment, and discloses a shockproof structure of an LED backlight source, which comprises a mounting frame, a backlight plate and a back plate, wherein the back plate is fixedly connected with the inner back wall of the mounting frame. The horizontal shockproof structure formed by horizontal elastic members and buffer pads, the vertical energy absorption structure formed by vertical elastic members and auxiliary buffer members, and the impact protection structure are combined, when the equipment is accidentally dropped or vertically vibrated, the vertical elastic members are pulled to absorb energy by extruding the rubber blocks and compression springs through the extrusion blocks, the vertical impact is effectively reduced, and then the impact force is prevented from being concentrated on the backlight plate; when the surface of the backlight plate is subjected to pressure or impact force, the pressure and the impact force are first absorbed by the damping deformation of the buffer pads, and the elastic deformation of the horizontal elastic members further disperses the energy, thereby improving the protection effect on the backlight plate.

The utility model relates to the technical field of LED lighting equipment, and discloses an LED lighting lamp anti-collision buffer device which comprises an outer shell, an inner shell, a buffer assembly and a connecting assembly, the outer shell is a hollow cylinder, and the top and the bottom of the outer shell are both open. According to the anti-collision buffering device for the LED illuminating lamp, through the synergistic effect of the multiple buffering springs, the buffering pad and the damping device, when the LED illuminating lamp is collided, energy generated by collision can be effectively absorbed, collision kinetic energy is converted into elastic potential energy through elastic deformation of the multiple buffering springs, the energy is further buffered and absorbed through the buffering pad, and the anti-collision effect of the LED illuminating lamp is improved. The damping device slows down the moving speed of the inner shell and prolongs the energy absorption time, so that the impact of collision on the LED illuminating lamp is greatly reduced, the internal structure and light-emitting elements of the LED illuminating lamp are protected, the design of the connecting assembly enables the device to be conveniently installed on various street lamp poles or installation supports, and the application range is wide.

The invention discloses a laser welding method for plastic and silica gel, and relates to the field of laser plastic welding processes. The method solves the technical problem that the traditional silica gel and plastic cannot realize the welding process. The method comprises the following steps: adopting a TPSIV material, and adding an infrared absorbent into the TPSIV material to modify the TPSIV material so as to adjust the absorption performance; providing a laser-penetrable plastic part as an upper part, and taking the modified TPSIV silica gel part as a light absorption part; after the upper part is matched with the light absorption part, a laser beam is guided to penetrate through the upper part and irradiate the light absorption part, the light absorption part absorbs energy to be melted, and welding combination is achieved through heat conduction. The invention realizes firm connection between the plastic and the silica gel, and is applicable to precise structures such as electronic cigarette cartridges and the like.

An example of an apparatus to convert light energy to electrical energy is provided. The apparatus includes a semiconductor material to absorb energy from a photon. The energy is to be converted to a current. Furthermore, the apparatus includes a positive electrode disposed on a backside of the semiconductor material to collect the current from the backside. In addition, the apparatus includes a via to connect the backside of the semiconductor material electrically to a frontside of the semiconductor material. The apparatus also includes a plurality of fingers disposed on the frontside of the semiconductor material to collect the current from the frontside. The apparatus further includes a trunkline connected to the plurality of fingers to deliver the current to the via. The trunkline is to increase a cross-sectional area toward the via to reduce parasitic resistance.

The invention relates to a component for absorbing energy of an impact applied to the component (19), wherein the component (19) is plastically deformable by an impact and optionally can undergo at least some extent of destruction, the component (19) comprising a sheet profile (1) as a main component and a foamed secondary component (17), wherein the foamed secondary component (17) is connected to the sheet profile (1) and has a density of more than 0.2 g / cm3. The invention further relates to a composite unit (21) built from such components (17) and a process for producing the component (17).

A satellite includes a structural element that is deformable during a collision with space object(s). The structural element includes a first side, a second side spaced apart from the first side to define an interior portion between the first side and the second side, and at least one material disposed within the interior portion. The first side includes a first layer of material with payload element(s) disposed thereon, and the second side includes a second layer of material. The material disposed within the interior portion is designed to absorb energy over time during a collision process with each space object. The first layer, the second layer and / or the material disposed within the interior portion are configured to capture one or more space objects upon collision with the satellite.

The invention discloses an organic electroluminescent material, a double-host organic electroluminescent material and a luminescent device, and relates to the technical field of organic electroluminescent materials. The tetraphenyl ring or benzanthracene ring in the structure of the organic electroluminescent material with the structure of the general formula 1 provided by the invention has an expanded large conjugated system, and the unique electronic structure endows the material with relatively high fluorescence quantum efficiency, so that absorbed energy can be efficiently converted into fluorescence radiation. The structure shown in the general formula 1 and the structure shown in the general formula 2 are jointly used as the double-main-body organic electroluminescent material, triplet excitons are dispersed on two main bodies through the double-main-body material, triplet-triplet annihilation (TTA) is reduced, the driving voltage of the organic electroluminescent device is reduced, meanwhile, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.

An electrical device capable of emitting or absorbs energy relative a surrounding environment. The electrical device includes a housing, an interior volume defined in the housing, an energy sensor at least partially exposed to the surrounding environment, a first material having a first absorptivity, and a second material having a second absorptivity lower than the first absorptivity. The first material is nearer to the surrounding environment than the second material is at an energy sensor reading below a threshold energy range, and the first material is farther from the surrounding environment than the second material is at an energy sensor reading above the threshold energy range.

The invention discloses a damage evaluation method of a composite material for a yacht under multiple low-speed impacts, and belongs to the technical field of material science and engineering. According to the method, serialized impact loading is carried out on the same sample according to a preset impact energy sequence, three types of multi-source damage data of a physical test, numerical simulation and nondestructive testing are synchronously collected, and the reliability of a numerical simulation model on dynamic response and damage morphology prediction is ensured through cross validation. Based on the verified simulated damage area, accumulated absorption energy and impact energy sequence, a prediction model capable of comprehensively and quantitatively representing four mechanisms of impact energy linear accumulation, damage area and absorption energy nonlinear coupling, energy interaction cooperation and impact sequence dependent damage is constructed through multi-parameter fitting. And finally, performing damage evaluation on the to-be-evaluated material according to the actual impact sequence by utilizing the prediction model. According to the invention, quantitative, nondestructive and high-precision evaluation of multiple impact damages of the composite material is realized.

This invention discloses a high-efficiency linear laser spot additive manufacturing method that replaces circular laser spots, comprising the following steps: Step 1: forming a linear cross-section powder flow; Step 2: the linear powder flow ejected from the powder nozzle absorbs energy, heats up, and melts, reaching the workpiece surface in the form of small liquid droplets; Step 3: forming a metallurgical bonding cladding layer of a certain thickness; Step 4: obtaining a single-pass double-layer additive layer; and testing and comparing the macroscopic and microscopic forming and performance under different process parameters; Step 5: applying it to subsequent actual laser additive manufacturing processes; Step 6: obtaining a well-formed single-pass double-layer laser additive manufacturing process, and processing under these parameters; Step 7: determining whether the overall performance meets the target requirements. This invention achieves ultra-high-speed linear laser spot cladding, enabling high efficiency improvement with relatively low cost.

The invention discloses a thin plate impact performance evaluation method based on an energy equivalent model, belongs to the technical field of metal material impact performance testing, and aims at solving the technical problem that the impact performance of a thin plate with the thickness smaller than 5 mm lacks an effective detection and judgment standard. According to the method, an existing pendulum bob testing machine does not need to be transformed, a plurality of sheets to be tested are obtained through continuous sampling, the sheets are stacked to form a quasi-thick plate structure with the total thickness B larger than or equal to 7.5 mm and larger than or equal to 11 mm, the size of a stacked sample is 55 mm * 10 mm * B, and a V-shaped or U-shaped notch is formed in the middle of the stacked sample and fixed through an M3 screw; and performing an impact test by using a pendulum bob testing machine to obtain actually measured energy K, calculating equivalent absorption energy according to an energy equivalent formula KE = K * 10 / B, and further evaluating the impact performance of the thin plate.

The application discloses a kind of vibration-absorbing energy-absorbing composite board and preparation method thereof, comprising: preparation metal cavity and two different metal material metal filling block;Coating release agent on the inner wall of metal cavity;Different metal material metal filling block is alternately stacked and filled in metal cavity along the thickness direction of metal cavity, and vacuumizing and sealing welding treatment are carried out to metal cavity, to obtain first composite blank;First composite blank is heated to first preset temperature and is kept warm in first preset heating time;First composite blank is rolled, to obtain second composite blank;Remove the metal cavity outside second composite blank, to obtain vibration-absorbing energy-absorbing composite board.The prepared vibration-absorbing energy-absorbing composite board is high-strength metallurgical bonding different structure gradient vibration-absorbing energy-absorbing composite board, so that the vibration-absorbing energy-absorbing composite board has higher loss factor, improves damping efficiency, reduces weight, and the combination form is various, significantly improves the economic benefit of product.