32results about How to "Expand the range of changes" patented technology

An apparatus and method for displaying images and an apparatus and method for processing images are provided. The image display apparatus includes an image processor configured to receive an image frame and convert a gradation value of each of a plurality of pixels constituting the image frame to generate a sub image frame; and a controller configured to control a display panel to sequentially display the image frame and the sub image frame.

A vibrator has massaging balls supported by a treating unit that may be shifted along a subject portion for treatment, guided by guiding members. The treating unit is supported by a supporting structure with respect to the guiding members. A position or orientation altering mechanism is provided for altering the position of the treatment unit in a direction orthogonal to the direction of its shifting or the orientation of the treating unit with respect to the guiding members. The supporting structure may include an engaging unit that engages the guiding members and an arm for supporting the engaging unit.

The embodiment of the invention discloses an adaptive imaging positioning navigation system and method for a driverless vehicle. The adaptive imaging positioning navigation system for the driverless vehicle comprises a sending end and a receiving end; the sending end sends original data including positioning navigation information through a visible light signal; and the receiving end is arranged on the driverless vehicle, used to receive the visible light signal and recover the visible light signal to obtain the original data; wherein the sending end comprises a indicator light and a street light, and the receiving end comprises a camera, a motor, a photosensitive sensor and a processor; the receiving end controls the rotation of the camera through the motor, and activates the camera to receive the optical signal and obtain the original data. According to the embodiment of the invention, the street light and the indicator light are used as the signal sources of the positioning navigation, and the variation range of the communication distance is improved by means of an adaptive switching mode, therefore, the problem that the communication mode is fixed and can only be applied to local application fields is solved, and the technical effects that the communication mode can be applied to different communication scenarios and the visible light communication technology is applied tothe field of the positioning navigation are achieved.

Inner-conductor holes whose internal surfaces are coated with inner conductors are provided in a dielectric block. Input / output electrodes are provided on the outside of the dielectric block, coupled to the inner conductors by electrostatic capacitance. Gap portions are provided between the input / output electrodes and an outer conductor. The input / output electrodes may be formed to extend from a bottom surface (mounting surface) and onto a side surface of an external surface of the dielectric block. Filter characteristics are determined depending on a width or a depth of the gap portion on the side surface of the dielectric block.

Provided herein are a reflective lens capable of changing a focal length and an optical system using the same. An active reflective lens according to an embodiment includes: a lens unit including material that is deformable in response to an electric signal; a support unit configured to support the lens unit; a base unit formed below the support unit; a first electrode formed on the lens unit; and a second electrode formed on the base unit. The distance between the first electrode and the second electrode is determined depending on a shape of an upper surface of the base unit, and the distance between the first electrode and the second electrode varies depending on regions of the lens unit.

The invention provides a supporting component used for a similar simulation test of a high-speed rotor and a testing method, and belongs to the field of similar design of the high-speed rotor. The supporting component comprises a bearing, multiple rotor cages and a testing platform support. The bearing is used for supporting the simulation rotor to rotate, inner diameters of the rotor cages are identical and are matched with the outer diameter of the bearing, the rigidities of the rotor cages are different, in the test, different rotor cages are selected to sleeve the exterior of the bearing respectively, and the selected rotor cages and bearing are fixed through the testing platform support to simulate different supporting rigidities. The supporting rigidity of the provided supporting component can be two times or above that of a rotor original part, and the supporting component has high adjustment capacity for the supporting rigidity of a rotor system.

The invention discloses a preparation method for a black arsenic-phosphorus crystal. The preparation method comprises the following steps: (1) mixing an arsenic and phosphorus mixture, tin powder andtin tetraiodide according to a mass ratio of (10-60): (1-3): (0.5-1.5), carrying out vacuum packaging, then heating a mixed material to 700 DEG C to 800 DEG C, and maintaining the temperature for 2 to3 h; (2) cooling a mixed material obtained in the step (1) to a temperature of 450 to 550 DEG C, and maintaining the temperature for 3 to 4 h; and (3) cooling a mixed material obtained in the step (2) to a room temperature so as to obtain the black arsenic-phosphorus crystal. The preparation method provided by the invention can prepare a series of black arsenic-phosphorus crystals with an atomicratio, expands band gap changes and application range of black arsenic phosphorus, and realizes large-scale preparation of high-quality black arsenic-phosphorus crystals with adjustable band gap. Meanwhile, by adoption of the tin tetraiodide, the temperature of growth is reduced; the efficiency of transportation is improved; and vacuum equipment can prevent from generating corrosion. In addition,the preparation method provided by the invention has the advantages of high black arsenic phosphorus conversion rate, no generation of impurity phases, short growth time, simple growth equipment and high yield.

The invention relates to an approach of volume controlling in multimedia equipments. The specific procedures are: presetting multiple controlling keys. Every key corresponds to a preset volume value that is discrete. When any controlling key is detected pressed, the current volume value of the apparatus jumps to the volume value corresponding to the control key. The invention can speed up the regulation of volume range to shorten the waiting time no matter in silence or noise.

Inner-conductor holes whose internal surfaces are coated with inner conductors are provided in a dielectric block. Input / output electrodes are provided on the outside of the dielectric block, coupled to the inner conductors by electrostatic capacitance. Gap portions are provided between the input / output electrodes and an outer conductor. The input / output electrodes may be formed to extend from a bottom surface (mounting surface) and onto a side surface of an external surface of the dielectric block. Filter characteristics are determined depending on a width or a depth of the gap portion on the side surface of the dielectric block.

The invention discloses a friction planetary stepless speed changer transmission mechanism. The mechanism comprises a planet carrier, at least one planet row, a central wheel set and a transmission element, wherein the planet row comprises an outer planet gear, a planet shaft, an inner planet wheel set and a rocker arm; the inner planet wheel set comprises an inner planet gear, a first planet cone pulley and a second planet cone pulley; the central wheel set comprises a first cone pulley and a second cone pulley; the transmission element is connected with a transmission element in the planet row; the inner planet wheel set is connected with the rocker arm in a movable mode; the rocker arm and the outer planet gear are connected with the planet carrier through the planet shaft in a movable mode; the outer planet gear is engaged with the inner planet gear; and the central wheel set and the inner planet wheel set are connected through a conical surface to transmit power, so that stepless speed variation is realized. The mechanism can be used in transmission fields of various vehicles, machines and the like.

The invention discloses a friction mechanics demonstration device comprising a support plate, a friction plate, an electric push rod and a friction body; the features are that the support plate top iswelded with a hinge block; the hinge block is hinged to the friction plate; the support plate has a groove; the electric push rod is arranged in the groove; the output end of the electric push rod ishinged to a connecting rod; the other end of the connecting rod is hinged to the bottom of the friction plate; a fixed block is arranged in the groove, and hinged to the middle of the connecting rod;the friction body top is provided with a wireless accelerometer; the friction body right end is provided with a wireless tension sensor. The demonstration device respectively uses the wireless accelerometer and the wireless tension sensor to measure the acceleration and the pulling force, thus reducing the test error; the friction plate tilt angle can be changed so as to realize multivariable influences on the friction force; the demonstration device uses a single chip to control the device and process the data, is strong in timeliness, small in error, and good in a demonstration effect.

A sensor device has a plurality of electrode portions configured to provide one or more electrical signals and a non-conductive material provided on or over the plurality of electrode portions. The one or more electrical signals are provided in response to a change in capacitance between (i) at least one of the plurality of electrode portions and a conductive object being near to or in contact with the non-conductive material, and / or (ii) at least one of the plurality of electrode portions and at least one other of the plurality of electrode portions. A system comprising the sensor device and method of manufacturing the sensor device are also provided.

The invention discloses a rice milling device for rice processing. The rice milling device comprises a feeding mechanism, a screening mechanism and a rice milling mechanism, wherein the feeding mechanism is connected with the screening mechanism through a first feeding channel; the rice milling mechanism is arranged below the screening mechanism; the feeding mechanism comprises a feeding groove; the lower portion of the feeding groove is fixedly connected with the feeding groove through a first feeding port; a stirring shaft is transversely fixed to the interior of the feeding groove; the left end of the stirring shaft penetrates through the left side wall of the feeding groove and then is fixedly connected with a rotating motor; and a plurality of stirring blades are fixed to the stirring shaft. When the discharge flow needs to be reduced, a driving motor drives a driving wheel to rotate in the opposite direction, so that a fixed block moves towards the inner side, and a gap between two discharging plates is reduced; and the feeding speed and flow are controlled by controlling the gap between the two discharging plates, so that quantitative feeding is achieved, the overflow of brown rice is prevented, the blockage of the brown rice is avoided, and the rice milling processing quality of the brown rice is effectively guaranteed.

The invention discloses a resistance-capacitance tandem type flexible sensor for measuring contact force. The sensor comprises an upper capacitor layer, a conductive elastomer layer and a lower capacitor layer which are stacked together in sequence from top to bottom; the upper capacitor layer sequentially comprises a first upper capacitor electrode, a first dielectric layer and a second upper capacitor electrode from top to bottom; the conductive elastomer layer sequentially comprises a first electrode, a conductive elastomer and a second electrode from top to bottom, and the conductive elastomer is conductive and the resistance of the conductive elastomer changes along with the deformation of the conductive elastomer; the lower capacitor layer sequentially comprises a first lower capacitor electrode, a second dielectric layer and a second lower capacitor electrode from top to bottom; and the first upper capacitor electrode and the second lower capacitor electrode are output ends of the sensor. The flexible sensor provided by the invention has the characteristics of high sensitivity and high measurement accuracy.

The invention relates to the technical field of flow measurement, in particular to an underground full-borehole thermal type flow measuring device. By adding the intermediate heat-conducting medium, the temperature change of the intermediate medium is measured, and the problem that the flow measurement reference quantity is difficult to extract and generate due to the fact that the heat capacity coefficient of liquid is large and the temperature change is not obvious during high flow is solved. Meanwhile, a plurality of temperature sensors are arranged at different positions in the body, different positions have different temperature change ranges, the value in the optimal temperature range can be selected from the temperature sensors to serve as a reference value for calculating flow, theflow measurement range is greatly widened, and the problems that the flow change range from top to bottom under an oil field well is large, and measurement is difficult are solved.

An optical pickup device is provided with a light source; an objective lens for focusing an optical beam emitted from the light source on a recording plane; a polarizing beam splitter arranged on an optical path between the light source and the objective lens; and a birefringence correction plate arranged on an optical path between the objective lens and the polarizing beam splitter for giving a phase difference between two polarization components of the entered optical beam which are orthogonally intersecting each other. In the optical pickup device, the phase difference generated by the birefringence correction plate differs, depending on a position within the plane of the birefringence correction plate. Thus, influence of birefringence is more effectively reduced by using the simpler optical element, and a margin for birefringence fluctuation of an information recording medium is widened.

The invention discloses a circuit and a method for improving the sensitivity of a differential resistance type sensor. A differential resistor R1 is connected in series with a differential resistor R2, the change directions of the R1 and the R2 are opposite, a differential resistor R3 is connected in series with a differential resistor R4, the change directions of the R3 and the R4 are opposite, the R3 and the R4 are connected in parallel at the two ends of the R1 and the R2, and the change directions of the R3 and the R1 are opposite; and an output signal line a is led out from a center tap point A on a connecting line of the R1 and the R2, and an output signal line b is led out from a center tap point B on a connecting line of the R3 and the R4. A group of differential resistors which are opposite to the original differential resistors in change direction and are the same as the original differential resistors in resistance are additionally arranged, and the two groups of differential resistors form an induction part which is of a differential structure mechanically and is in series connection electrically, so that a bridge circuit which is in differential change is formed between two middle connection points of the two pairs of differential resistors, the differential resistance type sensor effectively changes signal independent output and amplifies original output signals, and the resolution of actual change signals of the differential resistance type sensor is improved.

The invention relates to the technical field of machine tool machining and mechanical transmission, in particular to a shaping machine. The shaping machine comprises a lathe bed, a workbench, a ram, atool post and a controller; the lower portion of the lathe bed is provided with a base, the outer side of the lathe bed is provided with the workbench, the upper portion of the lathe bed is providedwith the ram, and the end, facing towards the workbench, of the ram is provided with the tool post; in the working process of the shaping machine, the feeding speed of the tool post is unbalanced dueto driving of a connection rod mechanism, the low output power of a servo motor is hardly to directly drive the shaping machine to move, then, the machining effect of the shaping machine on a workpiece is influenced, thus, through a strut arranged in the connection rod mechanism, the torque of acting force of a driving rod to a swing rod is improved, a strut rotationally connected to the servo motor serves as supporting to operation of the connection rod, driving control of the servo motor at low power on power input of the connection mechanism is achieved, then, the feed rate of the tool postis stabilized, and accordingly the machining effect of the shaping machine is improved.

The invention discloses a regulator for changing sound frequency by utilizing a Doppler effect. A machine body is included; the regulator comprises a machine body 10; a moving cavity 75 is formed in the machine body 10; lifting grooves 73 are formed in the left side wall and the right side wall of the machine body 10 correspondingly. A lifting sliding block 40 is connected into each lifting groove73 in a sliding manner; a lifting body 44 is fixedly arranged between the two lifting sliding blocks 40, an acceleration cavity 77 is formed in the lifting body 44, a moving device 78 of a moving sound source is arranged in the moving cavity 75, and the regulator can freely control the sound frequency, give out different audios, change original sounds, serve as accompaniment sounds of other sounds and freely play the purposes of the adjuster.

The invention discloses a bionic flapping-wing micro-aircraft and a control moment generation method based on the difference of two wings and the change of the center of gravity of a steering gear to realize the generation of high control moment. The aircraft includes a lift system, a transmission system, a control system and a power system. The transmission system realizes the reciprocating flapping of the wings in a small space through the combination of the distributed gear reduction gear and the crank-connecting rod. The control system respectively drives the flapping wing tension beam to move forward, backward, left, and right through two independent steering gears to effectively adjust the angle of attack of the flapping wing. The tension beam of the flapping wing of the present invention is connected with the spherical hinge device on the base, and is controlled by the roll steering gear and the pitch, which effectively increases the change range of the flapping wing's attack angle and improves the control moment generated by the flapping wing. In addition, when the bionic flapping-wing MAV performs attitude control, the rudder effect is further enhanced by controlling the deflection of the center of gravity of the steering gear, which effectively improves the control torque generated by the flapping wing.

The invention relates to an environment temperature adjusting assembly for a micro-fine nickel-titanium phase transition temperature test. The environment temperature adjusting assembly comprises a container and a stirring rotor placed in the container, and a driving mechanism for driving the stirring rotor to rotate is arranged at a lower part of the container, a temperature adjusting part is arranged inside or outside the container, and the temperature adjusting part is in contact with an environmental medium in the container or an outer surface of the container; and the container is also internally provided with an object-carrying flow-blocking platform. According to the design, the environment medium is placed in the container, the temperature change range can be widened, the detectedtemperature change span is expanded, the flowing of the environment medium is achieved through the stirring rotor, the heat exchange efficiency is improved, the temperature is stable and uniform in the environment medium, and the detection precision is improved; the object-carrying flow-blocking platform can be used for conveniently placing a detected object, and meanwhile, a certain smoothing effect on the flowing environmental medium is achieved such that the influence of fluctuation of the environmental medium on detection is avoided.

The invention discloses a microwave broadband temperature compensation attenuator, relates to a waveguide type device, and belongs to the technical field of basic electrical elements. The temperaturecompensation attenuator comprises an analog attenuator module and a negative temperature coefficient LDO module, the analog attenuator module and the negative temperature coefficient LDO module are connected between an input terminal and an output terminal, the negative temperature coefficient LDO module is formed by combining a band gap reference, a subtracter and an operational amplifier, and the analog attenuator module is formed by combining an FET and a resistor. The attenuator disclosed by the invention is wide in frequency range, wide in temperature compensation range, small in input and output voltage standing-wave ratio, small in circuit size, simple to control and convenient to use, and has a very good application prospect in a radio frequency microwave integrated circuit.

The embodiment of the invention discloses an adaptive imaging positioning navigation system and method for a driverless vehicle. The adaptive imaging positioning navigation system for the driverless vehicle comprises a sending end and a receiving end; the sending end sends original data including positioning navigation information through a visible light signal; and the receiving end is arranged on the driverless vehicle, used to receive the visible light signal and recover the visible light signal to obtain the original data; wherein the sending end comprises a indicator light and a street light, and the receiving end comprises a camera, a motor, a photosensitive sensor and a processor; the receiving end controls the rotation of the camera through the motor, and activates the camera to receive the optical signal and obtain the original data. According to the embodiment of the invention, the street light and the indicator light are used as the signal sources of the positioning navigation, and the variation range of the communication distance is improved by means of an adaptive switching mode, therefore, the problem that the communication mode is fixed and can only be applied to local application fields is solved, and the technical effects that the communication mode can be applied to different communication scenarios and the visible light communication technology is applied tothe field of the positioning navigation are achieved.