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50results about How to "Change interval" patented technology

Miniature needle array for medicine transmission and its making process

The present invention relates to a kind of miniature needle array for medicine transmission, and features that the miniature needle in the array is non-planar solid miniature needle comprising a needle tip for piercing live animal skin, a needle body for increasing the pierced depth, and a base for stabilizing the array and preventing breaking and residue in the skin of miniature needle. The miniature needle array is changeable in the base number, the miniature needle number, the 3D structure of the needles, needle tip interval, needle tip height and the needle tip inclination for practical requirement. The miniature needle array is made through MEMS and polymer-MEMS combining process, in which only one mask is used for twice photo etching to form the needle tips and the needle bodies of the miniature needles. The present invention is used for vaccine and medicine transmission through micropores formed with the solidified hydrogel.
Owner:SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI

Filter unit for wastewater treatment and production of drinking water

A filter unit for sewage treatment and drinking water provision and components which are suitable for the production and the use of such filter units are described. The filter unit has at least one ceramic filter(3) and at least one holder for liquid-tight fixing of the filter in the holder(2), the filter being fixed in the holder by adhesive bonding with the aid of an adhesive. At the same time, the holder is adjusted to the design of the filter, especially to its design as a flat filter. A separate filtrate collecting channel (21)and a holding device (18)for the filter units or other components allow the provision of a finished filter system which is also suitable for retrofitting of already existing plants.
Owner:ITN NANOVATION AG

Manufacturing device of bus bar and manufacturing method thereof

The present invention provides a manufacturing device of a bus bar and a manufacturing method thereof. No metal mold is used for manufacturing. The manufacturing process can be simplified and a plurality of kinds of bus bars can be manufactured more easily. The manufacturing device of the bus bar is provided with the following components: a conveying device which guides square lines out in a long-edge direction; a first holding device which holds the guided-out square lines; a first holding movement actuator which causes the first holding device to move along a long-edge direction of the square line; a second holding device which holds the square lines which is closer to the downstream side than the first holding device; a second holding movement actuator which causes the second holding device to move along the long edge direction of the square line; and a machining actuator which causes a contact component that contacts with the square lines between the first holding device and the second holding device to reciprocate in a direction that is orthogonal with the square lines for causing projection of the square lines to side part. The manufacturing method comprises the following steps: a guiding-out step for forming a plate-shaped body part composed of square lines through guiding-out the square lines, and a fin forming process for forming the fin which is projected from the side margin of the body part, wherein the two steps are carried out repeatedly.
Owner:NITTOKU ENG CO LTD

Mechanical drawing line drawing pencil for drawing different line widths and line types

The invention discloses a mechanical drawing line drawing pencil for drawing different line widths and line types. The mechanical drawing line drawing pencil comprises a pencil cap, a pencil lead adjusting disc, a pencil holder, an electromagnetic coil, reset springs and rollers. The mechanical drawing line drawing pencil is characterized in that the front end of the pencil holder is in threaded connection with the pencil cap, pencil lead grooves are formed in the middle portion of the pencil cap, and the pencil lead adjusting disc is installed in the pencil holder; multiple pencil lead inlay holes are formed in the pencil lead adjusting disc at equal intervals in the same circumferential direction, a pencil lead is placed in each pencil lead inlay hole, the pencil leads are sleeved with the reset springs, pencil points are arranged on the bottom portions of the pencil leads, and the side face of the pencil lead adjusting disc is connected with a pencil lead switching rotary knob; and an ejector rod is arranged above the pencil lead adjusting disc, a top pressure disc is arranged on the bottom portion of the ejector rod, the upper end of the ejector rod is connected with an armature block, the upper end of the armature block is connected with an air spring, the upper end of the air spring is connected with an iron core, and the electromagnetic coil is wound around the iron core. The multiple pencil leads can be rapidly switched, so that mechanical drawing is achieved to draw different line types with the different line widths.
Owner:HARBIN UNIV OF SCI & TECH

Automobile luggage rack

The invention relates to the technical field of automobile spare parts, and discloses an automobile luggage rack. The automobile luggage rack includes installation seats and support frame assemblies.Each of the support frame assemblies includes an object placing plate; both ends of the object placing plate are connected to telescopic rods; one end of each of the telescopic rods is connected to asupport rod; one end of each of the support rods is provided with a clamping assembly; the outer surface of each of the telescopic rods is sleeved by a first tension spring; an elastic air bag is disposed below the object placing plate; one side of the elastic air bag is provided with a whistle; the whistle includes a blowing nozzle; a supporting upright column is disposed on the blowing nozzle; the supporting upright column is rotatingly connected to a rotating shaft; one end of the rotating shaft is provided with rotating blades; external peripheries of the rotating blades are fixedly connected to the inner surface of a same circular ring body; the upper surface of the blowing nozzle is slidingly connected to a sliding plate; a second flexible pull rope is connected between the sliding plate and the circular ring body; and gas is blown into the whistle, the whistle sounds through squeeze and press of the elastic air bag, thereby prompting a user that transloaded luggage is overweight. The automobile luggage rack is advantageous is that the effects of shock absorption and buffering are good, and the weight of loaded luggage is prompted to exceed a maximum bearing weight.
Owner:CHONGQING YOUBO MACHINERY MFG

Ice cream producing machine and control method therefor

An ice cream producing machine, wherein when an agitating blade (9) for agitating ice cream material (A) stored in an agitating container (11) is drivingly rotated by a motor (4) rotated with a power supply from a battery (2), the rise of the agitating blade due to the rotation is eliminated since a sloped surface (9c) extending in a rotating direction is formed at the lower end of the agitating blade (9) to agitate also the ice cream material (A) at the bottom of the agitating container (11), and the motor (4) drivingly rotating the agitating blade (9) is controlled so as to be operated for a specified time at specified time intervals set by an initial agitation and a subsequent agitation, whereby high-quality ice cream can be produced by suppressing the power consumption of the battery (2).
Owner:PANASONIC CORP

Air conditioner fan grille, outdoor unit shell, system and configuration method of air conditioner fan grille

The invention relates to the technical field of air conditioners, and discloses an air conditioner fan grille, outdoor unit shell, system and a configuration method of the air conditioner fan grille.The air conditioner fan grille comprises a first grille body, a second grille body and a power mechanism, the first grille body comprises a plurality of ribs, the second grille body comprises a plurality of ribs, the fan grille has a first state and a second state, the power mechanism can drive the first grille body and the second grille body to move relatively, so that the first grille body and the second grille body are switched between the first state and the second state. In the first state, the positions of the multiple ribs of the second grille are overlapped with the positions of the multiple ribs of the first grille body, and in the second state, the positions of the multiple ribs of the second grille body are staggered with the positions of the multiple rids of the first grille body. Compared with the prior art, the first grille body and the second grille body are switched between the first state and the second state through the power mechanism, the rib dislocation relation ofthe first grille body and the second grille body is changed, the air outlet amount of an air conditioner is increased under the condition that electrical safety is met, the manufacturing cost of theair conditioner process is reduced, and the manufacturing difficulty is reduced.
Owner:GREE ELECTRIC APPLIANCES INC

Filament hanging clamp of spinning collection machine and filament hanging method of spinning collection machine

The invention provides the filament hanging clamp of a spinning collection machine and the filament hanging method of the spinning collection machine, wherein the period of the filament hanging operation is shorted. By means of a filament hanging clamp (51), a plurality of filaments from a spinning device (2) are respectively hung onto the plurality of filament hanging parts (44) of a filament guiding unit (42) of a spinning collection machine (1). The filament hanging clamp (51) is provided with a plurality of holding grooves (53) for respectively holding a plurality of filaments (Y). Each holding groove (53) is provided with an inlet part (55) with a front end and a holding part (56) arranged more inwardly compared with the inlet part (55). The alignment interval (W1) of the inlet parts (55) of the plurality of holding grooves (53) is different from the alignment interval (W2) of the holding parts (56) of the plurality of holding grooves (53), namely W1 is not equal to W2.
Owner:TMT MACHINERY INC

Collection device

The invention discloses a collection device which comprises a collection component, a receiving component and an induction component. The collection component comprises a bottom board and a limiting mechanism. The limiting mechanism comprises a first limiting board and a second limiting board. The first limiting board and the second limiting board are both fixed to the same surface of the bottom board. An interval is formed between the first limiting board and the second limiting board. A collection tank is defined by the first limiting board, the second limiting board and the bottom board. A first channel is formed in the first limiting board, and a second channel is formed in the second limiting board. The receiving component comprises carrying boards and carrying board drive components. The carrying boards penetrate the first channel and the second channel. A receiving tank is defined by the first limiting board, the second limiting board and the carrying boards. The carrying board drive components are arranged on the limiting mechanism, connected to the carrying boards and used for driving the carrying boards to move in the first channel and the second channel so that the receiving tank can be opened or closed. The induction component is used for detecting whether materials exist on the carrying boards or not. The collection device can save time and is high in production efficiency.
Owner:GUANGDONG ESQUEL TEXTILES CO LTD +1

Environment-friendly rubbish incineration disposal device

The invention discloses an environment-friendly rubbish incineration disposal device. The environment-friendly rubbish incineration disposal device comprises a smashing mechanism, a screening mechanism, a support, a transfer mechanism and an incinerator; three groups of transmission shafts are located on the top of the incinerator and on the two sides of the bottom of the incinerator respectively,the two ends of each transmission shaft are rotationally connected with the inner wall of the incinerator respectively, and the two sides of each transmission shaft are sleeved with chain wheels respectively. The chain wheels are provided with a transfer belt, the transfer belt is composed of chains and a carrying net plate, the chains are installed on the chain wheels through transmission, and the carrying net plate is arranged between the chains. The top of the incinerator is provided with a smoke discharging pipe, a square ash collection cavity is formed in the bottom of the incinerator, and a feeding inlet is formed in the side wall, close to a rack, of the incinerator. By means of the environment-friendly rubbish incineration disposal device, rubbish is subjected to efficient smashing and screening predisposal, a dispersing device is arranged in the incinerator, the rubbish incineration disposal efficiency is greatly improved, and the environment-friendly rubbish incineration disposal device has the advantage that rubbish incineration is more sufficient and environmentally friendly.
Owner:ANHUI SHENGYUN ENVIRONMENT PROTECTION GRP CO LTD

Three-dimensional imaging method based on wearable magnetocardiogram three-dimensional measuring device

The invention relates to a three-dimensional imaging method based on a wearable magnetocardiography three-dimensional measuring device, and the wearable magnetocardiography three-dimensional measuring device obtains all three-dimensional magnetocardiography signals of a human body through a plurality of measuring sensors fixed by an adjustable vest in a magnetic shielding space. The method comprises the following steps: screening transmitted three-dimensional magnetocardiogram signals according to preset amplitude information, carrying out noise reduction and dimension reduction processing on the screened magnetocardiogram signals by adopting an independent component analysis and empirical mode decomposition method, and establishing a three-dimensional grid model comprising a trunk region, a heart region and a double-lung region based on a CT (Computed Tomography) image of a human body, a lead field matrix of magnetic field conduction from the heart to the position of the in-vitro sensor is obtained in a forward solving mode, and magnetic field distribution, used for real-time display, of the outer membrane surface of the heart is reversely solved based on the lead field matrix and the multi-channel signals. The wearable magnetocardiogram three-dimensional measuring device can synchronously obtain the three-dimensional magnetocardiogram signals, analyzes and displays the three-dimensional magnetocardiogram signals in real time, and is low in cost and convenient to carry.
Owner:HANGZHOU INNOVATION RES INST OF BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS

Controlled cooling method of thick steel plates for machines

The invention provides a controlled cooling method of thick steel plates for machines. The technological sequence of straightening first and then cooling is adopted, different cooling paths and cooling rates are used according to the difference of steel plate thicknesses H, and as for the steel plates with H is larger than or equal to 10mm and further smaller than 20mm, the technological path of straightening plus reverse laminar cooling is adopted; as for the steel plates with H is larger than or equal to 20mm and further smaller than 30mm, the technological path of straightening plus forwardlaminar cooling is adopted; and as for the steel plates with H is larger than or equal to 30mm and further smaller than 40mm, the technological path of straightening plus forward superfast cooling plus air cooling plus laminar cooling is adopted. Deformation stresses inside the steel plates can be released, the flatness of the steel plates is guaranteed, the plate shapes of the steel plates are effectively controlled, ferrite crystal grains are refined, the organization structure of each steel plate is improved, and evenness and stability of the steel plate properties are guaranteed. The method is simple and easy to implement, operation is convenient, energy consumption is small, production cost is low, and effects can be achieved immediately without any investment.
Owner:嘉兴市劼力机械科技有限公司

High polymer material production extruder provided with cooling mechanism

The invention discloses a high polymer material production extruder provided with a cooling mechanism, and relates to the technical field of extruders. The problems that after multiple positions of heat dissipation grids of an extruder are stacked, air is not prone to circulation, and the heat dissipation efficiency is low are solved. The high polymer material production extruder provided with the cooling mechanism comprises a main frame; the main frame comprises a control box; the control box is arranged on the top of the main frame; the upper portion of the main frame is fixedly connected with an extruder body; the extruder body comprises a feeding port, a discharging port and an extrusion pipe; the feeding port is formed in the top of the extruder body in a communicating manner; the extrusion pipe is arranged in the extruder body; and the discharging port is formed in the middle portion of the extruder body. According to the high polymer material production extruder, a shear fork frame supports an auxiliary heat dissipation grid to swing forwards, the interval between the auxiliary heat dissipation grid and a main heat dissipation module is changed, and the air circulation efficiency and the heat dissipation effect are improved.
Owner:广州市零点一度科技有限公司

Anti-corrosion heat dissipation type guide rail straightening device and machining method thereof

The invention discloses an anti-corrosion heat dissipation type guide rail straightening device and a machining method of the anti-corrosion heat dissipation type guide rail straightening device. Theanti-corrosion heat dissipation type guide rail straightening device comprises a bottom plate, guide columns are fixed to the side faces of the two ends of the bottom plate, the tops of the guide columns are fixedly connected with a top plate, the guide columns are in sliding sleeved connection with lug plates, the lug plates are welded and fixed to the side edge of a movable plate, supporting rollers are oppositely installed on the bottom plate and the movable plate, outer supporting plates are symmetrically welded and fixed to the side edge of the middle of the bottom plate, inner supportingplates are movably installed on the inner sides of the outer supporting plates, and side straightening wheels are installed on the inner supporting plates. The distance between the supporting rollerscan be changed by adjusting the height of the movable plate, one row of side straightening wheels with different specifications can be selected to be aligned with a guide rail by adjusting the innersupporting plates up and down, the device is applicable to guide rails with different heights to straighten different types of guide rails, device applicability is improved, and operation is convenient.
Owner:CHUZHOU OUBOTE ELECTRONICS MFG

car luggage rack

The invention relates to the technical field of automobile spare parts, and discloses an automobile luggage rack. The automobile luggage rack includes installation seats and support frame assemblies.Each of the support frame assemblies includes an object placing plate; both ends of the object placing plate are connected to telescopic rods; one end of each of the telescopic rods is connected to asupport rod; one end of each of the support rods is provided with a clamping assembly; the outer surface of each of the telescopic rods is sleeved by a first tension spring; an elastic air bag is disposed below the object placing plate; one side of the elastic air bag is provided with a whistle; the whistle includes a blowing nozzle; a supporting upright column is disposed on the blowing nozzle; the supporting upright column is rotatingly connected to a rotating shaft; one end of the rotating shaft is provided with rotating blades; external peripheries of the rotating blades are fixedly connected to the inner surface of a same circular ring body; the upper surface of the blowing nozzle is slidingly connected to a sliding plate; a second flexible pull rope is connected between the sliding plate and the circular ring body; and gas is blown into the whistle, the whistle sounds through squeeze and press of the elastic air bag, thereby prompting a user that transloaded luggage is overweight. The automobile luggage rack is advantageous is that the effects of shock absorption and buffering are good, and the weight of loaded luggage is prompted to exceed a maximum bearing weight.
Owner:CHONGQING YOUBO MACHINERY MFG

A mechanical drawing liner pen for drawing different line widths and styles

The invention discloses a mechanical drawing line drawing pencil for drawing different line widths and line types. The mechanical drawing line drawing pencil comprises a pencil cap, a pencil lead adjusting disc, a pencil holder, an electromagnetic coil, reset springs and rollers. The mechanical drawing line drawing pencil is characterized in that the front end of the pencil holder is in threaded connection with the pencil cap, pencil lead grooves are formed in the middle portion of the pencil cap, and the pencil lead adjusting disc is installed in the pencil holder; multiple pencil lead inlay holes are formed in the pencil lead adjusting disc at equal intervals in the same circumferential direction, a pencil lead is placed in each pencil lead inlay hole, the pencil leads are sleeved with the reset springs, pencil points are arranged on the bottom portions of the pencil leads, and the side face of the pencil lead adjusting disc is connected with a pencil lead switching rotary knob; and an ejector rod is arranged above the pencil lead adjusting disc, a top pressure disc is arranged on the bottom portion of the ejector rod, the upper end of the ejector rod is connected with an armature block, the upper end of the armature block is connected with an air spring, the upper end of the air spring is connected with an iron core, and the electromagnetic coil is wound around the iron core. The multiple pencil leads can be rapidly switched, so that mechanical drawing is achieved to draw different line types with the different line widths.
Owner:HARBIN UNIV OF SCI & TECH

General surgery liquid nitrogen treatment auxiliary device

The invention discloses a general surgical liquid nitrogen treatment auxiliary device, which is within the field of medical device technology. The device includes an adjusting device and a spindle rod; a liquid coating protection device is installed on the installation disk; the carrier plate is mounted on a power device; the liquid coating protection device comprises an annular liquid supply hoseand an annular liquid return hose; a discharge pipe is installed in the installation hole; a suction pipe is slidably installed in the through hole; the adjusting device comprises a transparent tapered adjusting cap; the power device comprises a 'C' shaped bracket; a side surface of the carrier disk is provided with a guiding groove along the annular shape; a driving motor is mounted at a front end of the lower end of the handle; a rubber wheel is mounted on the output end of the driving motor; the end surface of the rubber wheel is in frictional contact with the side of the carrier disk. Thedevice has the beneficial effects that the rapid and uniform liquid nitrogen application can be realized, the excess liquid nitrogen can be recovered in time, the liquid nitrogen damage is reduced, and the operation is convenient and fast with high safety.
Owner:THE FIRST AFFILIATED HOSPITAL OF MEDICAL COLLEGE OF XIAN JIAOTONG UNIV

A cold shear automatic steel cutting control method

The invention provides a cold shear automatic steel cutting control method, which relates to the technical field of steel rolling control. The present invention cancels the use of the absolute value encoder with DP communication, which avoids the problem that the absolute value encoder of DP communication affects other devices on the entire DP network, and realizes that only one proximity switch is used through design and programming. The control method of automatic cold shear steel cutting is completed. After the improvement, the control is simple, the principle is clear, and it is convenient for spot inspection and maintenance. In the event of an accident, it only takes a few minutes to replace the proximity switch, which effectively reduces the troubleshooting time. Option, the operator calculates and obtains the parameters of the first-stage rolling and cutting position according to the different interval time settings, which is convenient to change the interval time of the first-stage rolling and cutting according to the needs and avoid the deviation of the first-stage rolling and cutting.
Owner:YANGCHUN NEW STEEL CO LTD

Suction disc clamp capable of realizing integral displacement

The invention provides a suction disc clamp capable of realizing integral displacement. The suction disc clamp capable of realizing integral displacement comprises a top plate used for being connectedwith a mechanical arm, a displacement plate arranged below the top plate in parallel and capable of moving forwards and backwards, a drive device used for driving the displacement plate to move forwards and backwards, and a plurality of suction disc assemblies arranged below the displacement plate in a manner of moving to the left and the right, wherein at least one group of slide grooves is formed in the displacement plate, and each group comprises a plurality of slide grooves arranged in the left-right direction; in the same group of slide grooves, the distance between any two adjacent slide grooves is gradually increased / reduced from the front to the rear, and the interval between the slide grooves is equal on any same front-rear position; each suction disc assembly comprises a slide block capable of moving to the left and the right, a slide pin arranged at the top of the slide block, and at least two suction discs arranged at the bottom of the slide block in the front-rear direction; and the slide pins are inserted into the different slide grooves separately. The distances among the columns of suction discs in the suction disc clamp can be adjusted on line.
Owner:佛山市奥楷机械科技有限公司

Sanitary napkin processing system and sanitary napkin processing method

The invention discloses a sanitary napkin processing system and a sanitary napkin processing method, and relates to the field of sanitary napkin production. The system and the method have a beneficialtechnical effect that a device can detect sanitary napkins with different qualities, toughness and thicknesses. The method comprises the following steps: 1, sleeving a right sleeve rod with a rolledsanitary napkin to be detected, drawing out an end part of the sanitary napkin, fixing the end part of the sanitary napkin on a sleeve, and sleeving a left sleeve rod with the sleeve; 2, adjusting vertical heights of two detection plate assemblies through an electric push rod so that lower ends of the two detection plate assemblies are propped against the stretched sanitary napkin; 3, starting thefirst motor to drive the sleeve to rotate, continuously winding the sanitary napkin on the sleeve, in a process that the sanitary napkin is transferred to the sleeve, and using downward pressure of the two detection plate assemblies to enable the sanitary napkin to deform, wherein a position, with poor quality, of the sanitary napkin is broken, and a detection effect is achieved; and 4, changingpressure of the two detection plate assemblies pressed against the sanitary napkins by adjusting a detection driving mechanism so that the sanitary napkins with different qualities are detected.
Owner:李进

Intelligent rice preservation bin and rice preservation method

PendingCN114212401ASolve the problem of convenient loading and unloading transportationIncrease power generationLarge containersSolid materialAgricultural scienceAgricultural engineering
The invention relates to the technical field of rice preservation, in particular to an intelligent rice preservation bin and a rice preservation method.The intelligent rice preservation bin comprises an A-type intelligent rice preservation bin body, temperature control mechanisms, a partition mechanism and a feeding and discharging mechanism, the temperature control mechanisms are located on the inner side and the outer side of the A-type intelligent rice preservation bin body, and the partition mechanism is located in the A-type intelligent rice preservation bin body; the feeding and discharging mechanism is located at the outer end of the A-type intelligent rice preservation bin. A solar power generation intelligent switching mode is adopted for power supply, energy conservation and efficiency improvement are achieved, solar power supply is mainly adopted in winter and summer, power can be generated and sold to a power grid company in spring and autumn, economic benefits are generated, multipurpose storage in the box is achieved, intervals in the box are changed, the types of various agricultural and sideline products stored in the fresh-keeping bin can be changed, and the fresh-keeping bin is suitable for popularization and application. The storage temperature and humidity are automatically controlled according to the requirements of various agricultural and sideline products for the storage temperature and humidity, the space of the cabinet can be fully utilized, the cabinet considers the special requirements of bulk rice, the storage capacity can be increased, and labor is saved.
Owner:邓新达

Cheongsam connecting buckle for interval adjusting

The invention discloses a cheongsam connecting button with interval adjustment, which comprises: a first installation ring and a second installation ring, a first rotating disc is arranged in the first installation ring, and a second rotating disk is arranged in the second installation ring. A rotating disk, the first rotating disk is provided with a first sleeve, the first sleeve is provided with a first connecting rope extending outward, and the second rotating disk is provided with a second sleeve, so The second sleeve is provided with a second connecting rope extending outward, the end of the first connecting rope is provided with a magnetic force ring, and the end of the second connecting rope is provided with a magnetic column extending into the magnetic force ring. Fastening screws are arranged on the first sleeve and the second sleeve. Through the above method, the cheongsam connecting buckle with interval adjustment according to the present invention can change the protruding lengths of the first connecting rope and the second connecting rope, and adjust the connecting interval to adapt to cheongsam wearers of different statures. The operation is convenient and the connection High stability.
Owner:苏州凤霓绣叶文化艺术有限公司

Rotary vane type foot target for taekwondo training

The invention discloses a rotary vane type foot target for taekwondo training, which comprises a base, a tray, a mounting column, a plurality of foot target components, a relay component, a mounting groove block, a foot target, a trigger switch and the like. When an athlete kicks the target, the trigger switch is closed to transmit a motion signal to the relay component, due to the delayed closing effect of the relay component, a motor and a locking mechanism are not started, the foot target is kept in a fixed state and is correctly and firmly kicked once, then the motor and the locking mechanism are started in a delayed mode, due to the delayed disconnection function of the relay assembly, after the motor drives the column body to rotate for a period of time, the relay assembly can be automatically closed, the locking mechanism locks the mounting column again, the whole target is kept in a fixed state to accept next kicking, so that continuous hit training of changing target positions is achieved on the premise that no target holding person exists, the rotating speed of the motor can be adjusted, the motor is used for changing the interval of leg techniques in continuous hit, and the continuous hit speed of an athlete is increased.
Owner:ANKANG UNIV

An Optical Frequency Comb Generator with Spectral Line Spacing Equal to Fiber Brillouin Frequency Shift

The invention discloses an optical frequency comb generator with the spectral line interval being equal to optical fiber Brillouin frequency shift. The optical frequency comb generator is characterized in that a continuous wave laser device, an electro-optical phase modulator, an optical fiber, a photoelectric detector and a radio frequency amplifier are utilized to form a feedback loop to generate a radio frequency signal with the oscillation frequency being equal to the optical fiber Brillouin frequency shift, the radio frequency signal is utilized to drive another electro-optical modulatorto generate an optical frequency comb with the spectral line interval being equal to the optical fiber Brillouin frequency shift, and the spectral line interval of the optical frequency comb can be changed by regulating the working wavelength of the laser device or using optical fibers with different Brillouin frequency shifts. Compared with a method for generating the optical frequency comb on the basis of electro-optical modulation, the optical frequency comb generator has the advantages that an additional radio frequency signal for driving the modulator is not needed, and accordingly the optical frequency comb generator is high in stability and low in phase noise, and photoelectric integration can be achieved easily.
Owner:BEIHANG UNIV
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