308results about How to "Adjust the intensity" patented technology

The invention relates to a micron-scale LED display device achieving light effect extraction and color conversion and a manufacturing method. The micron-scale LED display device comprises a pluralityof LED chips arranged on the surface of a substrate and distributed in an array and microstructures which are arranged on the surfaces of the LED chips and correspond to the LED chips in a one-to-onemanner; the microstructures comprise inverted-trapezoidal liquid storage grooves, and reflecting layers are arranged on the inner circumference sides of the liquid storage grooves; the microstructuresdistributed in an array and the LED chips sequentially form R units, G units and B units in the transverse direction, wherein the liquid storage grooves of the R units / the G units are each provided with a red / green quantum dot layer and a distributed Bragg reflection layer in sequence from bottom to top, and the liquid storage grooves of the B units are each sequentially provided with a transparent layer and a distributed Bragg reflection layer from bottom to top; the LED chips can emit blue light, and the blue light emitted by the LED chips is converted into red light / green light through thered quantum dot layers / the green quantum dot layers. By means of the micron-scale LED display device achieving light effect extraction and color conversion and the manufacturing method, emitting of light in the perpendicular direction can be increased; meanwhile, the intensity of the emitted light can be enhanced, and color conversion and the light extraction efficiency of micron-scale LED displaying can be effectively improved.

The invention provides a reduction exoskeleton joint, which comprises a first limb and a second limb which are in rotary connection, and further comprises a reduction mechanism which is arranged between the first limb and the second limb, wherein the reduction mechanism is in charge of providing recovery force when the first limb and the second limb approach to an upright state so as to promote the joint to recover to the upright state, and the joint, under the circumstance of not being exerted with obvious torque, is kept under the upright state. The reduction mechanism can adopt magnetic attraction elements or wedge block-wedge groove structures and further comprises an elastic energy storage mechanism, and the reduction mechanism is capable of releasing elasticity so as to assist power in a process that the first limb and the second limb extend. The elastic energy storage mechanism is a torsional spring, a tension spring, a compression spring or a pneumatic push rod; and a limiting mechanism, which is used for limiting rotating angles of the first limb and the second limb, is arranged between the first limb and the second limb. The reduction exoskeleton joint disclosed by the invention is simple in structure; power assisting is achieved by virtue of a mechanical mode under the condition of not consuming external energy; and in addition, reduction from passive bending to active extending is achieved.

The invention relates to a preparation method of graphene, comprising the following steps of: heating expandable graphite in protective atmosphere, and thermally stripping to obtain expanded graphite; dissolving the expanded graphite into solution containing a surfactant, and ultrasonically stripping to obtain graphene solution; centrifuging, filtering, washing and drying the graphene solution in sequence so as to obtain a crude graphene product; and performing a microwave heating treatment to the crude graphene product to obtain the graphene. The preparation method of the graphene has the advantages of lower cost and higher purity.

The invention discloses a fault analog simulation material used for a fluid-solid coupling model test, which comprises components in parts by weight as follows: 1 part of quartz sand, 0.05-0.25 part of talcum powder, 0.05-0.15 part of gypsum powder, 0.08-0.2 part of Vaseline and 0.1-0.2 part of water. The material adopts gypsum as a cementing agent, so as to achieve simulation for fault fluid-solid coupling characteristics; the talcum powder and the quartz sand are adopted as conditioning agents to regulate the weight of the material; and the Vaseline is adopted as a water resistant agent to regulate permeability of the material, simultaneously adopted as a plastic cementing agent of the material, and used for simulating the fault fluid-solid coupling characteristics under different permeability conditions, and real-time comparison with surrounding rock fluid-solid coupling characteristics in the same experiment is achieved. The fault analog simulation material in the fluid-solid coupling model test disclosed by the invention can regulate the strength and the permeability of the material within a larger range, and simulate various types of faults at various levels of intensity.

The invention relates to the field of a potting adhesive and particularly relates to a low-viscosity heat-conduction electronic potting adhesive applicable to each electronic element and a preparation method thereof. The heat-conduction electronic potting adhesive is formed by a component A and a component B in a weight ratio from 100: 90 to 100: 110; the component A comprises the following raw materials in weight percentage of 39.20-79.60% of heat-conduction inflaming retarding powder, 0.80-2.00% of color matching agent, 0.40-1.00% of silane coupling agent, 16.20-43.80% of liquid silicon oil and 3.00-14.50% of silane cross-linking agent; and the component B comprises the following raw materials in weight percentage of 39.20-79.60% of heat-conduction inflaming retarding powder, 18.00-57.80% of liquid silicon oil, 0.20-1.00% of silane coupling agent, 1.00-1.96% of color matching agent and 0.04-1.00% of catalyst. The low-viscosity heat-conduction electronic potting adhesive has lower viscosity, excellent mobility, good heat-conduction performance and high inflaming retarding grade; the potting requirement of a seam less than 0.02 mm can be met and the construction is convenient; and after the heat-conduction electronic potting adhesive is cured, the strength is good, and the dustproof, moisture-proof and vibration-proof performances are good, the electronic element can be effectively protected and the service life of the electronic element is prolonged.

The invention discloses a fluid-solid coupling similar material for a model test. The material consists of the following raw materials in part by weight: 1 part of standard sand, 0.05 to 0.15 part of barite powder, 0.05 to 0.15 part of talcpowder, 0.05 to 0.125 part of cement, 0.04 to 0.12 part of vaseline, 0 to 0.15 part of silicone oil and 0.05 to 0.1 part of mixing water. Hydraulic cement and non-hydrophilic vaseline are taken as cementing agents in the material, so that the problem that the similar material is softened and disintegrated when meeting water is solved, and the strength and elastic modulus of the material can be adjusted in a wide range; the silicone oil is taken as an adjuster, so that the water physical indexes such as permeability and the like of the material can be adjusted under the condition that the mechanical indexes of the material are basically not influenced, and the physical and mechanical properties and water physical properties of the material can meet the test requirement; and compared with previous research, the invention has the advantages that: the intercoupling effect of a rock body and water is truly simulated, and the obtained geomechanical similar model test research result is more accurate.

The invention provides a light sense energy saving system of a mobile and a method thereof and a method for achieving light sense energy saving. The light sense energy saving system of the mobile comprises a backlight chip, an audio control module and a light sense chip, wherein, the light sense chip obtains light intensity from outside and carries out sampling processing, a baseband chip provides a fixed ADC channel for the light sense chip to control data acquisition carried out by the light sense chip, the backlight chip adjusts the back light of the phone keypad and the LCD screen, and the audio control module adjusts the volume of the phone. The invention has the beneficial effects that the energy consumption of the phone is lowered effectively, the service life of the phone battery is prolonged and the brightness of the backlight and the volume of the phone can be conveniently adjusted by sensing optical lines outside and judging external environmental changes.

Disclosed herein is glass cutting apparatuses and methods of cutting glass using the glass cutting apparatuses. More particularly, disclosed is a glass cutting apparatus which cuts a glass sheet (140) by forming a crack in the glass sheet using a laser beam and by lifting the glass sheet using a bending unit (160), and a method of cutting glass using the glass cutting apparatus.

The invention discloses a middle-infrared waveband transmission type sub-wavelength metal grating, which belongs to the technical field of function material and device. The metal grating comprises a zinc selenide glass substrate and a metal film which is located on the surface of the zinc selenide glass substrate and is provided with a periodicity hole structure; and in the periodicity hole structure, radius r of single hole is smaller than 1 / 2 of hole period P, and the hole period P is 1-10mu. The middle-infrared waveband transmission type sub-wavelength metal grating uses a sub-wavelength periodicity structure of less than infrared wavelength to realize selective transmission of infrared rays in the middle-infrared waveband of 2.5-25mu, and meanwhile shields the function of microwave millimeter waveband electromagnetic wave. The middle-infrared waveband transmission type sub-wavelength metal grating has the characteristics of simple structure and easy implementation, and can be applied to infrared detection device requiring electromagnetic shielding.

The invention discloses a multi-spectrum light emitting diode structure, comprising a substrate and a semiconductor lamination. The semiconductor lamination at least comprises an n-type semiconductor layer, a p-type semiconductor layer and a multi-spectrum light emitting multi-quantum well layer. The multi-spectrum light emitting multi-quantum well layer is composed of two or three groups of multi-quantum well light emitting units which are arranged in a lamination mode and have different quantum well forbidden band widths. According to the multi-spectrum light emitting multi-quantum well layer, two or three wavelengths of light can be emitted at the same time. The wavelength difference between any two wavelengths of light is lambda. The lambda is greater than or equal to 10nm and is smaller than or equal to 100nm. The multi-quantum well light emitting units are periodic structures composed of quantum well layers and quantum barrier layers. The period number is K. The light emitting wavelengths of the multi-quantum well light emitting units are decided by the quantum well forbidden band widths. A light emitting wavelength range is 380nm-700nm. According to the structure, multiple spectrums can be directly emitted from a single chip, the number of the chips for five- primary color light packaging is greatly reduced, and a great design window for circuit design, optical design and light mixing of lamp beads is provided.

The invention relates to siloxane bridged trapezoidal polysiloxane. A main structural framework of the siloxane bridged trapezoidal polysiloxane is shown in formula I, wherein each substituent, m, x,y and z are as defined in the description and claims. The invention further discloses siloxane bridged trapezoidal polysiloxane random, block copolymers, and graft copolymers prepared by a siloxane bridged trapezoidal polysiloxane concoction. The siloxane bridged trapezoidal polysiloxane retains temperature resistance and flexibility of siloxane bridged trapezoidal polysiloxane fragments and goodcompatibility of general-purpose macromolecules, and degree of polymerization, mechanical strength, temperature resistance, optical properties and the like can be adjusted according to different compositions and proportions of copolymerized fragments, composition and proportion of end-capping agents, different structures of grafting units and the like. The formula is shown in the description.

The invention discloses a screw type buffer hinge. Upper and lower portions of one side of a left hinge piece are provided with an upper sleeve and a lower sleeve. One side of a right hinge piece is provided with a middle sleeve. An upper end cover is disposed in the upper sleeve. A fixing sleeve, a damper and a lower end cover are disposed in the lower sleeve. A side wall of one end portion of the fixing sleeve is provided with a rotating chute. A screw member is disposed in the middle sleeve. One end portion of the screw member is fixedly sleeved with a spring. One end of the spring extends towards the inside of the upper sleeve and is fixed in the upper sleeve. The other end portion of the screw member is provided with a rotating pin cooperated with the rotating chute. When the rotating pin moves in the rotating chute, the screw member is driven to move in the middle sleeve up and down, and the screw member drives the right hinge piece to rotate relative to the left hinge piece, so that a door is closed. The door can be closed without being powerfully pushed by a user, collision between the door and a doorframe can be effectively prevented, and compared with a hydraulic hinge, the screw type buffer hinge has the advantages that the screw type buffer hinge is simple in structure and long in service lifetime, and oil leakage can be prevented.

The invention relates to antistatic organosilicon gel used for a heat-conducting gasket and a preparation method of the organosilicon gel. The organosilicon gel comprises an A component and a B component in a weight ratio of 1:1. The A component comprises following raw materials by weight: 95-99.84 parts of a basic material, 0.1-1 part of a catalyst, 0.05-2 parts of an adhesive and 0.01-2 parts of an antistatic agent. The B component comprises following raw materials by weight: 84-94.9 parts of the basic material, 5-15 parts of a cross-linking agent and 0.1-1 part of an inhibitor. The organosilicon gel prepared by the invention has good fluidity. After sulfuration, the organosilicon gel has excellent adhesive property, holding power and antistatic property.

The invention discloses an electrolyte, a preparation method thereof, a high-energy-density lithium ion battery containing the electrolyte and a preparation method thereof. The electrolyte comprises alithium salt, a non-aqueous organic solvent, a negative electrode film-forming organic additive and a modified additive. The negative electrode film-forming organic additive is any one or at least two of fluoroethylene carbonate, 1, 2-difluoroethylene carbonate, chloroethylene carbonate and vinylene carbonate, and the modified additive is any one or at least two of potassium carbonate, sodium carbonate and lithium carbonate. The electrolyte provided by the invention can quickly form a layer of compact, stable and thin SEI film with good mechanical properties on the surfaces of negative electrode material particles. The high-energy-density lithium ion battery containing the electrolyte can relieve the problems of lithium battery capacity attenuation, particle pulverization and the like caused by volume expansion of a silicon-based negative electrode in the recycling process, and has good cycling stability and rate capability.

The invention discloses a color image edge detection method which comprises the following specific steps: extracting each color channel image, generating color antagonism images, calculating an edge information distribution image, and refining the color image edge. According to the method, a color image is discomposed into a red channel image, a green channel image, a blue channel image and a yellow channel image, red-green antagonism images and blue-yellow antagonism images are calculated respectively, edge information distribution images are obtained on the antagonism images through calculating, and the strength of the color edge and the brightness edge are adjusted conveniently through two groups of antagonism weighting factors introduced in the process of adjusting, calculating and generating the color antagonism images, thus the color image edge can be detected flexibly and effectively. The color image edge detection method has the advantages that the brightness or color edge information of the nature color image can be effectively detected through simple parameter selection, and in addition, the brightness and color edge information of the nature color image can be selectively extracted.

The invention discloses an energy feeding magnetorheological elastomer vehicle vibration reducing device. The device comprises a vibration reducing device body and a vibration reducing device controller; the vibration reducing device body includes a cylinder barrel, a piston rod, an upper spring clamping base, an upper spring pressing plate, an upper force transfer spring, a lower spring clamping base, a lower spring pressing plate and a lower force transfer spring; multiple piezoelectric modules and multiple magnetorheological elastomers coat the middle part of the piston rod; the adjacent piezoelectric modules and magnetorheological elastomers are bonded through double-surface adhesive thin iron plates; magnetic conducting brackets are bonded on the double-surface adhesive thin iron plates, and are wound with magnet exciting coils; piezoelectric vibrators are inlaid in the piezoelectric modules; the top of the upper spring clamping base is connected with a support frame; the top of the support frame is connected with an upper lifting ring; and the bottom of the cylinder barrel is fixedly connected with a lower lifting ring. The invention further discloses a control method of the energy feeding magnetorheological elastomer vehicle vibration reducing device. The energy feeding magnetorheological elastomer vehicle vibration reducing device is convenient to realize, low in cost, high in working stability and reliability, excellent in energy feeding effect, excellent in vibration reducing performance and strong in practicability.

The invention relates to the technical field of foundation tamping machines, and discloses a foundation tamping machine convenient to regulate a traveling route. The foundation tamping machine comprises a machine body; both left and right sides of the bottom of an inner cavity of the machine body are fixedly connected with fixed plates; the two fixed plates are symmetrical to each other by takingthe center line of the machine body in the vertical direction as the symmetry axis; supporting blocks are fixedly mounted on the left sides of the upper surfaces of the fixed plates; the supporting blocks fixedly sleeve driving motors; output shafts of the driving motors are fixedly sleeved by driving gears; and the right sides of the upper surfaces of the fixed plates are fixedly connected with U-shaped plates. The foundation tamping machine convenient to regulate the traveling route, by cooperation among the driving motors, the driving gears, driven gears, the U-shaped plates and limiting holes, is convenient for a user to regulate a depth that a tamping solid block presses to-be-tamped ground according to actual demands so as to facilitate regulating strength that the tamping solid block presses the to-be-tamped ground according to actual conditions by the user, thereby facilitating controlling ground pressure strength of the foundation tamping machine by the user.

The invention relates to a similar material for a fault mud burst model test and a preparing method thereof; the similar material comprises the components by weight: 1 part of a talcum powder, 2-7 parts of sand, 0.8-1.6 parts of gypsum, 0.2-0.6 part of bentonite, 0.01-0.4 part of liquid paraffin, and 0.2-0.7 part of mixing water. The preparing method comprises the steps: according to the proportion, weighing the talcum powder, sand, gypsum, bentonite and liquid paraffin; mixing evenly the talcum powder, sand, gypsum and bentonite in a stirrer; adding the mixing water, and fully stirring; adding the liquid paraffin and stirring; putting the mixed material into a molding die, and carrying out compaction molding; placing the molded material in a ventilated dry place for 24-36 h, and thus obtaining the similar material for the fault mud burst model test. The similar material can be slowly weakened and disintegrated under a water action, the disintegration performance can be changed through changing the composition, and a possibility is provided for fault mud burst in a process of real simulation of tunnel excavation.

Provided is an arthritic patient rehabilitation device. The problem is solved that an existing device is short in service life, simple in training and poor in treating effect. The arthritic patient rehabilitation device comprises a base, wherein multiple supporting legs are fixed to the lower end of the base, a chair seat is fixed to the upper end of the base, the upper portion of the left side ofthe base is provided with a rotatable chairback, the front end and the back end of the right side of the lower end of the base are respectively hinged with a first connecting rod, a second connectingrod is hinged to the right end of each first connecting rod, a pedal is fixed to the inner side of the lower portion of each second connecting rod, two racks capable of horizontally sliding are symmetrically arranged at the lower end of the base, and a third connecting rod is hinged to the right end of each rack and is hinged and fixed to the first connecting rod. Each second connecting rod is provided with a sliding groove formed in the length direction of the second connecting rod, a sliding shaft is slidingly arranged in the sliding groove, the outer end of the sliding shaft penetrates through the sliding groove and is connected with a fourth connecting rod, and the other end of the fourth connecting rod is hinged to a first gear rotatably arranged under the base.

The present invention discloses a modified Y type molecular sieve, which is characterized in that the molecular sieve is modified by using rare earth, iron, copper and phosphorus, wherein rare earth content in the molecular sieve is 8-23 wt% (calculated as rare earth oxide), iron content in the molecular sieve is 0.1-3.0 wt% (calculated as Fe2O3), copper content in the molecular sieve is 0-3.0 wt% (calculated as CuO), phosphorus content in the molecular sieve is 0-2.0 wt% (calculated as P2O5), and sodium oxide content in the molecular sieve is 0.1-2.5 wt%. According to the modified Y type molecular sieve, a molecular sieve acid amount measured by <31>P MAS NMR after absorbing tri-n-butylphosphine oxide is 1.400-4.500 mmol.g<-1>, and a molecular sieve acid amount measured by <31>P MAS NMR after absorbing trimethyl phosphine oxide (TMPO) is 2.300-6.600 mmol.g<-1>. The molecular sieve has a high acid amount, especially a high outer surface acid amount, and can be adopted as an active component to effectively resist harm effects on the molecular sieve acid center by the basic nitrogen macromolecules so as to provide an excellent anti-basic nitrogen performance.

The invention relates to a park physical exercise device, in particular to a park physical exercise device. The park physical exercise device achieves the technical purposes that multiple parts are exercised at the same time, the exercising mode is novel, and the applicable crowd is wide. According to the technical scheme, the park physical exercise device comprises a base, a first supporting rod,a first connecting rod, sliding sleeves, a sliding rod, a holding rod, a drainage pipe, a water pipe valve, a water tank, a rotating plate, a first bearing pedestal, a small chain wheel and the like;the first supporting rod is arranged at the left side of the top of the base, three first connecting rods are arranged at the right side of the first supporting rod, and the right ends of the upper first connecting rod and the middle first connecting rod are each provided with one sliding sleeve. When a person repeatedly steps on a pedal, leg muscles of the person can be exercised; by verticallymoving the holding rod, the arms of people can be exercised; by controlling the water pipe valve, a proper amount of water is contained inside the water tank, and people can freely adjust the leg exercising strength.

The invention discloses a processing system and a processing method of a surface material layer of a wafer. The system comprises a processing chamber, a radio-frequency power source and an exciter coil connected with the radio-frequency power source. The upper part of the interior of the processing chamber is filled with plasma ionized by the radio-frequency power source and the exister coil. A semiconductor wafer is arranged at the bottom of the interior of the processing chamber and a transparent material layer is arranged between the plasma and the semiconductor wafer. Ultraviolet light emitted by the plasma passes through the transparent material layer and then reaches the surface material layer of the semiconductor wafer. The processing system and the processing method of the surface material layer of the wafer can radically solve the problem of the intensity uniformity of the ultraviolet light when the ultraviolet light is utilized for processing the material layer.

The invention discloses a preparation method for a silicon carbide aluminum matrix brake disc material. Silicon carbide-aluminum is adopted to serve as a matrix material, so that the overall density and strength of the composite material are adjusted; and furthermore, tensile strength and durability are improved through a mode of adding inorganic particles for cladding the material.

The invention discloses an energy feeding magnetorheological elastomer vehicle vibration reducing device. The device comprises a vibration reducing device body and a vibration reducing device controller; the vibration reducing device body includes a cylinder barrel, a piston rod, an upper spring clamping base, an upper spring pressing plate, an upper force transfer spring, a lower spring clamping base, a lower spring pressing plate and a lower force transfer spring; multiple piezoelectric modules and multiple magnetorheological elastomers coat the middle part of the piston rod; the adjacent piezoelectric modules and magnetorheological elastomers are bonded through double-surface adhesive thin iron plates; magnetic conducting brackets are bonded on the double-surface adhesive thin iron plates, and are wound with magnet exciting coils; piezoelectric vibrators are inlaid in the piezoelectric modules; the top of the upper spring clamping base is connected with a support frame; the top of the support frame is connected with an upper lifting ring; and the bottom of the cylinder barrel is fixedly connected with a lower lifting ring. The invention further discloses a control method of the energy feeding magnetorheological elastomer vehicle vibration reducing device. The energy feeding magnetorheological elastomer vehicle vibration reducing device is convenient to realize, low in cost, high in working stability and reliability, excellent in energy feeding effect, excellent in vibration reducing performance and strong in practicability.

The invention discloses a preparation method of high-strength specially shaped PMI (polymethacrylimide) foam. The method comprises the following steps: raw materials for preparing the PMI foam are added to a reactor, prepolymerization is performed under nitrogen protection, reaction temperature is reduced when viscosity of a reaction liquid reaches a default value, and a low temperature initiatoris added; the obtained reaction liquid is foamed; the foamed reaction liquid is injected into a mold under nitrogen protection; polymerization curing is performed by controlling foam curing temperature, the mold is taken apart, and a foam body is taken out; the taken-out foam body is transferred into a drying oven for post-curing; specially shaped PMI foam obtained by post-curing is placed into the mold again, micro-foaming is performed again, then cooling is performed, the mold is taken apart, and the high-strength specially shaped PMI foam is obtained. The high-strength specially shaped PMIfoam can be prepared efficiently with the method, cost for producing the specially shaped PMI foam at present is reduced greatly, efficiency and performance are improved, and the PMI foam can be applied to the fields of new-energy vehicles, bicycle hubs, propeller blades and the like where the specially shaped PMI foam is needed.

The invention discloses a stem cell exosome microneedle patch for removing freckles and wrinkles. The stem cell exosome microneedle patch comprises a microneedle and a waterproof backing layer for fixing the microneedle, wherein the microneedle is obtained by curing a needle tip solution and a needle body solution, the needle tip solution comprises a stem cell exosome, astaxanthin, trehalose, chitosan, bovine serum albumin and a phosphate buffer solution; and the needle body solution is prepared from PVP K30, PEG 400, squalane and sterile water. The microneedle patch disclosed by the inventioncan penetrate through a skin cuticle barrier, a novel administration path is provided for macromolecular drugs, and the problem of transdermal absorption of an exosome repair solution is solved. Themicroneedle patch can slowly release exosome repair solution, so that the absorptivity of an organism is improved. The microneedle patch has good puncture property, solubility and biological activity,is simple to operate and easy to store, and can be produced on a large scale.

The invention discloses a device for preventing seed bouncing. The device is composed of a cam shaft mechanism, a ditch building mechanism, a pressing mechanism, a seed discharge pipe, and a support plate. The ditch building mechanism and pressing mechanism are respectively arranged on the cam shaft mechanism and the support plate; and the seed discharge pipe is fixed on the support plate. Before sowing, the device can build a ditch. After sowing, the soil is pressed immediately. Thus bouncing and rolling of seeds are effectively controlled. The ditch building mechanism comprises a ditch building wedge, which can well keep the ditch shape after ditching, so that discharged seeds can stably fall on the seedbeds. The bottom press plate of the pressing pedal of the pressing mechanism is provided with grooves, which can prevent the bouncing and rolling of seeds. The slide bars of the ditch building mechanism and the pressing mechanism are both provided with through holes in the axial direction. Under the assistance of a cylindrical compression spring, the strength of ditch building and pressing can be adjusted, thus the sowing quality is improved, the crop output is increased, the labor strength of sowing is reduced, and the device is worthy for promotion.

The invention supplies a high voltage series connecting thyristor double injecting testing method. For bidirectional thyristor valve, it adopts low voltage AC heavy current power supply to suppler AC current, the angle of flow is controlled by sample valve bursting angle, at each instant of before opening or closing on each direction of heavy current, the current short time impulse is supplied by high voltage circuit; and for single direction thyristor valve, it adopts low voltage DC heavy current to supply power, at the end moment of phase changing of the inversion valve, the current impulse would be injected into the high voltage circuit. By adjusting the waveform of the high voltage circuit to make the sample valve bear a suitable positive or negative high voltage, before the next DC current arriving, another short time high current impulse would be supplied to the sample valve to testing the performance of buffer circuit of the sample valve under high losing.