131 results about "Operational principle" patented technology

An isothermal heat sink use operational principles of heat pipes and includes a plate-like body including a housing, an interior partition and a wick. The housing has an inner chamber under a vacuum. The interior partition divides the inner chamber into an upper and lower half chamber and has a central through hole and multiple air passages. The wick containing a working fluid is held in the central through hole and has a lower evaporating section and an upper condensing section that are held respectively in the lower and the upper half chambers. Therefore, the working fluid in the evaporating section evaporates and produces a vapor that enters the upper half chamber from the lower half chamber through the air passages. The vapor condenses into liquid that enters the condensing section and returns to the evaporating section to improve cooling efficiency of the heat sink.

The invention relates to an operation scheduling system which is applicable to the grid environment and based on the reliability cost; as indicated in graph 1, the whole system includes three layers: the first layer is an operation submission interface module 1; the second layer is an operation scheduling module 2 and the grid resource platform 7 as the substrate layer. From the perspective of the operational principle, the core of the invention is the operation scheduling module in the second layer, which includes a pre-scheduling module 3, a scheduling strategy module 4, an operation finish time prediction module 5 and a resource information module 6. The operation scheduling system in the invention proposes an operation running time prediction model and a resource usability prediction model; the operation running time prediction model based on the mathematical model and the resource usability prediction model based on the Markov model have high accuracy and high generality. The operation scheduling system adopts the copy fault-tolerance strategy, the primary copy asynchronous operation fault-tolerance strategy and the retry fault-tolerance respectively according to different operation service quality requirements and resource characteristics so that the operation scheduling system has high flexibility and high validity; meanwhile, the operation scheduling system supports the computation-intensive operation and the data-intensive operation to have good generality. Compared with the scheduling system in the prior art, the operation scheduling system has the advantages of supporting more concurrent users, improving the resource utilization rate, good generality, good extensibility and high system throughput.

The invention discloses a nonlinear tunable mass and liquid damper used by combining a tunable mass damper and a tunable liquid damper through nonlinear springs. The nonlinear tunable mass and liquid damper comprises a solid mass block, a cavity, internal viscous liquid, a plurality of universal wheels, a preserved hole and a nonlinear spring device. The solid mass block and a closed shell outside the solid mass block serve as a center structure. The viscous liquid with a certain volume is added in the cavity and can circulate in the reserved hole in the mass block. The center structure is connected with baffles or walls on the periphery through the four sets of nonlinear springs outside the cavity. Rotating shafts are arranged at the joints between the nonlinear springs and the baffles or walls so that the nonlinear springs can horizontally rotate. The universal wheels are arranged at the bottom of the center structure so that the damper can freely move in the horizontal plane. According to the working principle, energy input into a building through an earthquake or / and wind vibration is dissipated by means of the mass of the solid block, the non-linear springs and friction force provided when the viscous liquid flows through the small hole in the solid block. The nonlinear tunable mass and liquid damper integrates the advantages of the tunable mass damper and the tunable liquid damper, is installed on the top of a high-rise building, and is simple and reliable in structure, low in manufacturing cost and capable of achieving the good damping effect.

A fast silicon-on-insulator (SOI) waveguide-based optical device enhanced with minority charge carrier lifetime modifiers enables faster modulation speeds in optical attenuators, optical intensity / phase-modulators, and optical switches whose operation principles are based on free-carrier injection into a waveguide. The waveguide is doped with gold (Au) or platinum (Pt) such that when a drive voltage (applied to the device) is turned off, the minority charge carriers rapidly annihilate because gold doping reduces the minority carrier lifetime, which improves transient characteristics of the optical device. Integration of the fast active device with passive devices such as WDM demultiplexers / multiplexers on the SOI optical waveguide platform enables realization of monolithic integrated optical components for advanced functionality such as dynamic spectral equalization.

A display device which has a liquid crystal display having a liquid crystal material, a driver for driving the liquid crystal display, and a controller for controlling the driver to drive at least a part of the liquid crystal display by selectively using one of a first drive method and a second drive method which are different from each other in operational principle of the liquid crystal material. The pulse voltage to drive at least one pixel of the liquid crystal display can be selectively set to any one of a plurality of kinds. The data pulse voltage applied to a data electrode can be selectively set to any one of a plurality of kinds to drive at least one pixel of the liquid crystal.

The invention discloses a hydro-viscous drive characteristic testing system, and is applicable to simulating oil film power drive characteristic between rotary interfaces on various working conditions. The hydro-viscous drive characteristic testing system mainly comprises a base, a motor, a coupler, a torque sensor, a hydro-viscous drive device and a hydraulic control system. The hydro-viscous drive device comprises an input shaft, an output shaft, a driving friction plate, a driven friction plate, a left supporting plate, a right supporting plate, a shell, a sealing component and the like. The hydraulic control system mainly comprises a motor, a double-pump, a proportional spill valve, an electromagnetic reversing valve, a throttling valve, a flowmeter, a filter, a pressure transmitter, an oil tank and the like. The hydro-viscous drive characteristic testing device and the system are implemented according to the operation principle of utilizing shear force of an oil film between the friction plates to transmit power and regulating transmission torque by changing the thickness of the oil film or rotational speed of the motor. The hydro-viscous drive characteristic testing system is simple in structure, low in cost, convenient to operate, safe and reliable, can be used for researching on characteristics of flow field, pressure field, temperature field and transmission torque of the oil film between the rotary interfaces on various working conditions, and has practicability in a wide scope.

A medical electronic sphygmomanometer using an electronic circuit to examine pressure and pulse sound, measures a blood pressure on the basis of a Korotkoff sound theory. The electronic sphygmomanometer solves the problems of the existing Korotkoff sound method that must use mercury for measuring blood pressure. The operational principle can be seen in the attached drawing. The attached drawing: 1: a single chip system board; 2: a liquid crystal display device; 3: a pulse sound sensor; 4: a pressure sensor; 5: a cuff air charging device; 6: a manual air charging ball; 7: a keypad matrix; 8: an air charging motor unit; 9: a standard medical stethoscope. The pressure sensor (4) is for sensing the pressure in the cuff air charging device (5); the pulse sound sensor is for sensing the pulse sound; the single chip system board (1) receives sensor data and displays results through the liquid crystal display device. The manual air charging ball (6) or the air charging motor unit (8) can be used for charging air to the cuff air charging device (5). The blood pressure can be measured according to the Korotkoff sound method. The standard medical stethoscope (9) can replace the pulse sound sensor (3), and the blood pressure can be measured by human.

The invention discloses a top drive simulation system and a method. The simulation system comprises top drive simulation operation equipment, a PLC (programmable logic controller) and a control unit, wherein the control unit comprises a main control machine, a parameter machine and a graph processing machine; the top drive operation equipment is connected with the PLC; the PLC is connected with the parameter machine through a serial port, and the parameter machine and the graph processing machine are respectively connected with the main control machine through a communication network. The simulation method comprises the following steps that S1, switch and knob state data are collected; S2, the data are sent to the main control machine; S3, the main control machine carries out calculation; S4, virtual showing is carried out. The invention provides the top drive simulation system and the method. The system has the advantages that the occupied ground is small, the maintenance cost is low, the damage cannot easily occur, the full-dimension and full-physical operation environment can be provided, the strict underground mathematical simulation is adopted, so the system and the method conform to the real process requirements, and meanwhile, the system has the top drive work principle 3D (3-dimensional) animation display function, so that trainees can better understand the top drive work principle and a wearing part maintenance method.

A fast silicon-on-insulator (SOI) waveguide-based optical device enhanced with minority charge carrier lifetime modifiers enables faster modulation speeds in optical attenuators, optical intensity / phase-modulators, and optical switches whose operation principles are based on free-carrier injection into a waveguide. The waveguide is doped with gold (Au) or platinum (Pt) such that when a drive voltage (applied to the device) is turned off, the minority charge carriers rapidly annihilate because gold doping reduces the minority carrier lifetime, which improves transient characteristics of the optical device. Integration of the fast active device with passive devices such as WDM demultiplexers / multiplexers on the SOI optical waveguide platform enables realization of monolithic integrated optical components for advanced functionality such as dynamic spectral equalization.

The present invention relates to an aperture-shaped variable valve which is attached to the inside or end of a pipe to variably control the flow rate or pressure of fluid, such as liquid or gas, flowing along the pipe. As to one usage of the invention, the exhaust noise of an automobile can be controlled because back pressure is variably controlled by the valve attached to a vehicular exhaust system where the flow rate of exhaust gas varies according to the RPM of an engine. Additionally, the flow rate can be measured within a large range through application of the valve to a flowmeter. An operational principle of the valve is to control the cross section of the flow path by contract or release of aperture plates which are initially opened at a constant size by elasticity of a spring. Using the aperture-shaped variable valve, linear control of flow rate or pressure is facilitated, compared with a conventional disc variable valve. Furthermore, control of flow rate or pressure is enabled by a simple method so constitution of a control system is facilitated.

The invention relates to a wireless charging device with an adjustable charging area and a method thereof. Based on an array antenna, a multi-coil transmitting and single-coil receiving model, by using a parallel magnetic coupling resonant principle and adjusting an input voltage of a unit in an transmitting coil array, changes the charging area. The wireless charging device is suitable for wireless charging in the fields of mobile phones, UAVs, and electric vehicles. Different from a traditional single-coil model, the wireless charging device has a long transmission distance, a good anti-offset capability and high transmission efficiency, is beneficial to the application in a wireless energy transmission system and greatly improves user experience.

A car shifting device, including a car pallet and at least one transportation device, the top of the transportation device is provided with a lifting device, and the bottom is provided with a power device, the lifting device and the power device are connected by a rotatable shaft, the center of the bottom of the car pallet There is a "ten" running through the groove. It works as follows, on the hoist lift in the garage there is a transport unit placed on the bottom of a car tray that can accommodate a conventional car. When a vehicle is driven onto the car pallet and parked, the lifting elevator ascends or descends to the parking floor where the free parking space is located, and then the lifting device on the top of the transport device lifts the car pallet and moves to the corresponding free parking space using the power device at the bottom of the transport device . The improvement can effectively improve parking efficiency, greatly increase the overall parking quantity, save land resources and garage consumption, and generate huge social and economic benefits.

The invention discloses an endoscope technology-based discharge-trace inspection system which comprises an inspection frame main body, one end of the inspection frame body is connected with an insulating operation rod, and the other end of the inspection frame body is connected with a universal joint, a CCD (charge coupled device) coupling endoscope and an intra-cavity luminescence lighting system are fixed at the front end of the universal joint, and the intra-cavity luminescence lighting system is arranged in the CCD coupling endoscope; and the CCD coupling endoscope is connected with an intelligent terminal. According to the invention adopting the technical scheme above, through using the operating principle of an endoscope, ground potential workers can clearly observe discharging traces from a further distance only by observing the intelligent terminal in hands without raising heads all the while, thereby greatly facilitating the practical operation of the workers. When the intelligent terminal is connected with a background control center in a wireless mode, the system also can be convenient to other monitoring workers for timely seeing the information, and help practical workers to carry out detection.

The invention relates to a directional rzeppa universal joint with the operational principle of changing circumferential motion into plane intermittent motion. A horizontal intersecting plane of two axes is used as an acting surface, and the directional rzeppa universal joint gradually loses effectiveness when leaving the acting surface, being similar to installing a switch in a circumferential track, opening the switch for outputting power when each steel ball runs to two points at 90 degrees and 270 degrees (with 0 degree as a peak), and gradually closing the switch without exerting action after the steel balls leave the two points so as to eliminate interference. The directional rzeppa universal joint completely eliminates the operation mode of traditional rzeppa universal joints and achieves approximately unchanged transmission, unchanged angular speed and unchanged movement radii of the two connected axes when angles are changed by utilizing space alternating tracks, so that the directional rzeppa universal joint can run at completely equal speed, the track interference is eliminated, the bearing capacity is improved through the change of a main structure, and the directional rzeppa universal joint has three integrated degrees of freedom on a node, with which the past universal joint can not compare. In sum, the directional rzeppa universal joint can effectively work under all environments needing universal joints.

The invention discloses a multistable energy capture device with a linkage effect. The device comprises an energy capture device foundation bed, springs, an array energy capture device and an electricenergy storage and management system. An integral working principle is disclosed in a diagram 1, external vibrational excitation enables a piezoelectric cantilever beam to generate deformation, a direct piezoelectric effect is used, a piezoelectric plate converts vibration energy into electric energy, and then, the electric energy is conveyed to an electric energy storage and management system torealize a self-energy-supply sensor. The multistable energy capture device with the linkage effect has the following advantages that: (1) an array layout with different energy capture devices is adopted, each energy capture device has different inherent frequencies, and energy can be efficiently recovered in a large frequency range; and (2) the springs are adopted to connect the array energy capture devices, in addition, consistent acting force among magnets on an end part realizes the energy capture device linkage effect of the array, the whole device presents a multistable effect, and energy capture efficiency is improved. In addition, compared with a traditional multistable energy capture device based on an external magnet magnetic coupling effect, the device disclosed by the inventionhas a simple structural layout, miniaturization even microminiaturization can be realized, and electric energy is provided for the self-energy-supply sensor of the future Internet of Things era.

Generation of electricity on-board, principally, certain hydraulic pool cleaners is described. Magnets may be caused to move within coils by (normal) cooperative actions of diaphragm-type valves and external pumps, thus generating electricity without changing the operational principles of the cleaners. The generated electricity may be used to power electrical devices either on-board the cleaners or elsewhere.

A rolling mill SONY magneto-scale online redundancy method belongs to the technical field of heavy and medium plate rolling mills. Aiming at sensitivity of a rolling mill roll gap adjusting system for signal adjusting stability, two SONY magneto-scales are newly added in a diagonal mode, signal collection is carried out by aid of four sensors with the same work principle in advantage complementation and combination mode, and the average value of the four sensors is taken from the system to serve as an actual position of a hydraulic gap control (HGC) cylinder. In the production process, if one sensor breaks down, the system can switch to the other group of sensors to continue production, accordingly stability of the milling roll adjusting system is enhanced, fault processing time can be shortened to the maximum limit, and smooth operation of production is ensured.

The invention relates to a collapse monitoring device based on an omnibearing tilt sensor, which comprises an omnibearing tilt sensor and a sound and light alarm unit. The operational principle for monitoring debris flows and collapse is as follows: the surface displacement of soil to be monitored is detected by utilizing the omnibearing tilt sensor to judge portents and states before the advent of debris flows and collapse. The invention provides the collapse monitoring device based on the omnibearing tilt sensor by adopting an omnibearing sensing monitoring method has the advantages of simple maintenance and adjustment, strong real-time property, safety and reliability, low power consumption, accident triggering, wide monitoring range, convenient construction and maintenance, low implementation cost, free maintenance, high reliability, and the like and is particularly suitable for the safety monitoring of mountain regions with high debris flow and collapse frequencies.

A method of calibration of magnification of a microscope with the use of a diffraction grating has the steps of determining a mean period of a diffraction grating by irradiating the diffraction grating with an electromagnetic radiation having a known wavelength and analyzing a resulting diffraction pattern, determining a scatter of individual values of a period of the diffraction grating by multiple measurements of periods of the diffraction grating by a microscope in pixels in one area in a microscope field of view, and calculating a mean value of the period and the scatter based on the measurements, determining a sufficient number of measurements of the period for providing an accepted statistic error of a magnification of the microscope, performing measurements corresponding to the determined acceptable number of measurements, of individual values of the period in pixels in a plurality of portions of the diffraction grating, calculating a general mean value of the period in pixels based on the immediately preceding step, and finally calculating a parameter corresponding to the magnification of the microscope based on the determined mean value of the period of the diffraction grating in the microscope image and the calculating of the general mean value of the period in pixels.

The invention discloses a torque protection device. A bearing pedestal is arranged at the position, close to a speed reduction mechanism, of an input shaft in a sleeving way, and is fixedly connected with the speed reduction mechanism through screws, wherein a belt pulley is arranged on the bearing pedestal in the sleeving way; a bearing is arranged between the bearing pedestal and the belt pulley; a first pressure plate is arranged on the surface, away from the speed reduction mechanism, of the belt pulley through a screw; the left side of the first pressure plate is meshed with a second pressure plate; a third pressure plate is arranged on the left side of the second pressure plate; a pair of locking nuts is fixed on the left side of the third pressure plate; a plurality of steel balls are arranged between the second and third pressure plates; a safety pin is arranged between the third pressure plate and the input shaft; a belleville spring is arranged on the right side of the second pressure plate. According to the torque protection device, the steel balls are additionally arranged between the second and third pressure plates, the belleville spring is arranged between the second pressure plate and the bearing pedestal, and when output force exceeds a set load, the steel balls are separated, and the first and second pressure plates are bounced off by the belleville spring, so that the rotation of the belt pulley cannot be transferred to the input shaft, and the aim of protecting a speed reducer is fulfilled.

The invention discloses an electric control system of a four-wheel driving four-wheel steering automatic driving chassis, and mainly discloses the structure and working principle of the electric control system. The electronic control system uses the EPCS-8980 as an upper computer and a DSP56F805 signal controller as the core and is based on a CAN bus for communication, a driving state parameter collector receives driving parameter information collected by all sensors and sends the information to a vehicle-mounted computer and a driving controller through the CAN bus, the driving controller generates a control command based on a driving control model according to a command of the vehicle-mounted computer and parameters of the sensors, each solenoid valve independently controls four hydraulic motors and four steering oil cylinders, and driving control of the chassis is achieved. At the same time, the electronic control system is tested, and the testing result shows that the electronic control system achieves the control over a hydraulic component, ensures the operation reliability, can meet the actual operation requirement and can also be used on a general autonomous mobile platform.

The invention provides a magnetostriction high-precision time measurement system based on electro-magnetic induction and relates to the fields of electromagnetism, electronic technique, sensor technology and digital signal processing. According to the magnetostriction high-precision time measurement system based on electro-magnetic induction, firstly a time measurement sequence chart is designed according to an operating principle of a magnetostrictive displacement sensor, and then the magnetostriction high-precision time measurement system is built based on electro-magnetic induction on complex programmable logic device (CPLD). The magnetostriction high-precision time measurement system comprises a time interval acquisition module, an inductive pulse signal processing module, a counting module and a counted data processing module. The time interval acquisition module comprises a drive pulse generating circuit, a time-delay circuit and a remote sensing (RS) trigger circuit, and the counting module comprises a 16-digit counter and an inner crystal oscillator. The magnetostriction high-precision time measurement system based on electro-magnetic induction has the advantages that the functions are achieved by adopting the CPLD, high measurement precision can be achieved when the CPLD with a higher speed is adopted, and design flexibility of the circuits is improved. The accuracy of the magnetostrictive displacement sensor is improved due to the fact that the structure of the circuits is simplified, the cost is lowered, and equipment can be downsized easily.

The invention discloses a photoelectric conversion law which is taken as a technical background and provides a spectrum generator of solar light source and fuel light source, and applications thereof, aiming at solving the difficult problems of world energy resource and global climate change. The book detailedly describes: the composition of the total structure of the spectrum generator and the functions thereof, the composition and the working principle of the core technique: a photoelectric conversion system, the fabrication process of the photoelectric elements, a basic type of the photoelectric conversion system and a combination type of the photoelectric conversion system in the total structure of the spectrum generator, detailed execution type of the spectrum generator and a light source spectrum generator and the generalization application type thereof on the ground and in the outer space, thus achieving the object of solving the difficult problems. The working principle of the spectrum generator of the photoelectric conversion system is that a solar light source light with white spectrum and distributed according to space (21) is assembled on a spectrum cell (24) by decomposition of a prism (22) and the condensation of a lens (23) and reconstructed as a solar light source colourful spectrum which is matched with the spectrum cell, distributed according to the plane, and has high light intensity and minimum loss with relative optical path deduction, with 90% of the light energy converted into the electric energy; the practical relative efficiency of the spectrum cell is more than 90%; the effective efficiency of the spectrum cell achieves more than 30% in normal situation; the working temperature is lower and the working can be more stably under the cooling of a cooling device (25).

The invention relates to an illuminator failure monitoring device which comprises a microprocessor, a power source, a control module, a signal acquiring module and a communication circuit. The control module consists of a control circuit and a relay connected with the same; and the signal acquiring module consists of a current-limiting resistor, a photoelectric coupler, a diode and a current transformer. The operation principle of the illuminator failure monitoring device includes that frequency signals can be monitored by monitoring pins of the microprocessor when an illuminator runs normally, so that whether the illuminator is in failure or not can be judged. Compared with the prior art, the illuminator failure monitoring device has the advantages that functions of illuminator failure monitoring and data communication are added so that automatic monitoring and remote alarming of failure of the illuminator are realized, energy economization, real-time failure alarming, high work efficiency and low maintenance cost are achieved, and intellectualization degree of monitoring for the illuminator is increased.

The present invention discloses a pulley descent control device, providing with a casing in which a pulley decelerating device is arranged. The present invention comprises an eccentric wheel, a pair of assistant pulleys, a pair of end pulleys and a rope. The eccentric wheel is arranged at the center through the dead axle on the casing. The pair of assistant pulleys and the pair of end pulleys are respectively arranged at the two sides of the eccentric wheel symmetrically through the dead axle on the casing. The rope passes round the pulleys in S-shape. The operational principle of the pulley descent control device is that the friction between the pulleys and the friction between the pulleys and the rope together play the role of deceleration and descent control.

Generation of electricity on-board, principally, certain hydraulic pool cleaners is described. Magnets may be caused to move within coils by (normal) cooperative actions of diaphragm-type valves and external pumps, thus generating electricity without changing the operational principles of the cleaners. The generated electricity may be used to power electrical devices either on-board the cleaners or elsewhere.

The invention discloses a hydraulic-power pickaxe, and belongs to the technical field of agricultural machines. The hydraulic-power pickaxe comprises a stander, a suspension bracket, an operation shoveling bracket, a depth-limitation wheel, a soil ripping shovel, a hydraulic system, a power transmission system, a soil-rolling mechanism, etc. The soil ripping shovel is fixed on the operation shoveling bracket; the operation shoveling bracket is connected with a hydraulic cylinder to form a soil ripping mechanism. The soil-rolling mechanism consists of a plurality of soil-rolling wheels arranged on the stander for adjusting the operation depth, which can imitate a shape, thereby improving the adaptability of the operation. The hydraulic-power pickaxe adopts a novel operational principle for realizing a virtual and real plowing, and the globular shape soil ripping technology thereof can perform the globular shape soil ripping to a high solid rangeland, thus avoiding the soil from plowing and perturbation to a large extent, improving the soil quality, improving the air permeability of soil and the impounding ability of the rangeland, keeping the ground vegetation from being damaged, reducing the evaporation of the soil moisture and increasing the coverage rate of the ground vegetation, thus meeting the agricultural requirement of grassland improvement.