45results about How to "Strong promotional value" patented technology

The invention relates to an intrusion detection method based on cloud computing and an intrusion detection system based on cloud computing, wherein an intrusion detection and analysis function is separated to a cloud from a conventional host side, and is provided at the cloud in the form of service. Complexity of deployment of the intrusion detection system at the host side is simplified and cost is reduced, meanwhile, a core intrusion detection and analysis service is located at the cloud, and the intrusion detection service is updated and maintained more efficiently by a cloud service provider through a more professional network security team. The method and the system realize high-efficiency and accurate intrusion detection and analysis under the premise of guaranteeing that time delay is very short, and have very high practical value. So far, the intrusion detection method based on cloud computing provides a highly reliable, highly steady and easy-to-use network security cloud service for users through deploying the intrusion detection service on a cloud server, thus, security of websites is improved greatly, and maintenance cost of the websites is reduced.

The invention discloses a method for detecting a human motion state based on accelerated speed changes. The method includes the following steps that A, a mobile device where an accelerated speed sensor is embedded is placed at any position of a human body, an accelerated speed sampling value of the accelerated speed sensor is compared with a preset accelerated speed threshold value, and according to the compared result, whether a human moves or not is judged; B, according to the step A, if the human moves, a self-correlation function is used for calculating the self-correlation degree of the accelerated speed sampling value; C, the self-correlation degree is compared with a preset self-correlation threshold value, and according to the compared result, whether the human walks or not is judged. According to changes of the accelerated speed value, whether the human walks or not can be judged. Therefore, the method not only is simple and accurate in judgment result, but also has very great practical significance and polarization value.

The invention discloses a sludge active carbon adsorbing agent for sewage dephosphorization and a preparation method thereof. The adsorbing agent is prepared from 0.1 mass percent to 5.0 mass percent of pyrolusite powder and 95 mass percent to 99.9 mass percent of sludge active carbon, wherein the mass percent sum of the ingredients is 100 percent. The preparation method comprises the following steps of grinding sludge into sludge powder; uniformly mixing the pyrolusite powder and the sludge powder; adding composite activating agents into the mixed powder; uniformly stirring the mixture; after the ultrasonic treatment, performing activation in a baking oven; then, performing burning carbonization in a tubular furnace; after the cooling, washing the prepared sludge active carbon by water to a neutral state; performing drying, grinding and screening to obtain the sludge active carbon adsorbing agent. The sludge active carbon adsorbing agent and the preparation method solve the problem of poor adsorption performance of the existing sludge active carbon adsorbing agent, and has the advantages that the dephosphorization rate is higher; the preparation method is simple; the adsorption performance is much better than that of wood commercial active carbon used in the market; the price is relatively lower; high market competitiveness and popularization values are realized.

A splicer for splicing steel plates for shipbuilding comprises a frame and is characterized in that the frame comprises a fixing plate provided with wheels at the bottom, a push-and-pull rod is welded on the side, above the wheels, of the fixing plate, permanent magnets for absorbing steel plates are fixed in the middle of the lower side of the fixing plate, and a manual regulator for regulating level of the steel plates is arranged on the other side of the fixing plate. Since the permanent magnets and the manual regulator are arranged on the frame, one of the steel plates is absorbed by the permanent magnets while the other steel plate is pressed by a sliding press head of the manual regulator, and the two steel plates can be welded after the level thereof is regulated by the manual regulator. The splicer for splicing steel plates for shipbuilding is simple in structure, is light, is convenient to operate, good in splicing quality and high in practicability and promotion value. By the splicer, production efficiency is improved greatly while labor and cost are saved.

The invention relates to high-purity graphite powder and a preparation method thereof. The preparation method comprises the following steps: adding graphite powder raw materials in a graphite boat, mounting the graphite boat in graphite purification equipment, and feeding argon for blowing; feeding purified gas A at the temperature of 1200-1800 DEG C, and insulating for 0.5-2 h; when heating to the temperature of 2000-2400 DEG C, feeding purified gas B and keeping feeding purified gas A; when heating to the temperature of 2600-3000 DEG C, stopping feeding the purified gas A and the purified gas B, insulating for 0.5-2 h, and cooling to the room temperature to obtain the high-purity graphite powder. In a whole preparation process, argon needs to be fed continuously for protection. Gas heatpurification and high-temperature purification are combined scientifically, key impurities such as B, Al and V in the graphite powder raw materials are removed thoroughly, therefore, the high-purity graphite powder with the purity greater than or equal to 99.9999% is obtained, conditions are created for industrialized production of the high-purity graphite powder with the carbon content of 99.9999% or above, and a certain scientific basis is provided.

The present discloses an ultrasonic adaptive focusing method for sonodynamic therapy. The method is employed to perform real-time regulation of focusing area of the sound energy and ultrasonic emission voltage when sonodynamic therapy is performed to accurately focus the sound energy onto a target area required by the treatment. The ultrasonic reflection echo is employed to perform real-time monitoring of a sound field state in an organization, and the focusing position, the focus size and the sound field intensity are regulated in real time according to a monitoring result to allow an actual sound field to be consistent to an expected sound field so as to solve the problem that there is deviation between the actual sound field and the expected sound field in the organization to cause bad treatment effect when the sonodynamic therapy is performed; and moreover, the reaction speed is fast, timeliness is good, manual intervention is little, the treatment efficiency and the stability of the treatment effect are improved, and therefore, the ultrasonic adaptive focusing method for sonodynamic therapy has high practicality and popularization values.

The invention discloses a method for classifying and transforming flexible bus stops based on willingness to pay, comprising steps: 1) selecting the scope of a flexible bus service mode to be provided, obtaining passenger demand information, and collecting basic data of passenger demand points; 2) ) Screen the effective information of passenger demand points, input corresponding evaluation indicators, evaluate the demand points, and output the scores of each demand point; Initial probability of demand response; 4) Combined with passengers' willingness to pay, convert the grades of some demand points, adjust their demand response probability, and obtain the final demand response probability of each demand point, which provides a basis for subsequent scheduling work. The method can enable passengers to know the situation of the station and adjust the demand response probability of the station according to the willingness to pay, and carry out reasonable scheduling under the premise of effectively ensuring the transportation efficiency, which has practical promotion value.

The invention discloses a multifunctional mobile power supply comprising a main body (1). One end of the main body is provided with a vehicular input plug (2), the other end of the main body is provided with a lighting lamp (3), the main body is provided with an output jack (4) and internally provided with a voltage conversion circuit (5) and an accumulator (6), and the voltage of a current input by the vehicular input plug (2) is converted by a voltage conversion circuit and then output to the output jack and the accumulator, and the accumulator outputs a current to the lighting lamp and the output jack. The multifunctional mobile power supply integrates the functions of three products, i.e. a vehicular charger, a mobile power supply and an LED (Light-Emitting Diode) strong light flashlight and can charge digital products, of MP3 / MP4 (Moving Picture Experts Group Audio Layer III / IV) / mobile phones, and the like through a vehicular power supply of 12 / 24 V or a built-in battery, and the equipped great-power LED lamp can provide daily lighting function. The product has the advantages of novel model, complete functions, portability, strong practicability, popularization values, and the like.

The invention relates to high-purity graphite powder and a purification process thereof. The process comprises the following steps: adding a graphite powder raw material in a graphite boat, mounting the graphite boat in purification equipment, vacuumizing until the pressure is minus 83-minus 100 KPa, and maintaining pressure for 0.5-2 h; after pressure rise rate is qualified, heating to the temperature of 1200-1800 DEG C, feeding a certain amount of purified gas, and after maintaining the pressure, vacuumizing until pressure reaches minus 93-minus 100 KPa; during heating period, carrying out impulse type purification, insulating for 1-3 h at a certain temperature in a temperature range of 2000-3000 DEG C, and then stopping impulse type purification; and vacuumizing and cooling to the temperature of 1200-1500 DEG C, feeding argon and enabling the temperature to be reduced to a room temperature to obtain the high-purity graphite powder. According to the purification process, volatilizedimpurities can be discharged in time by an impulse type process at a low temperature, the problem that key impurities such as B, Al and V in the graphite powder raw material are removed deeply is solved, therefore, the high-purity graphite powder with the purity reaching 99.999%-99.9999% is obtained, and a feasible path is provided for industrialized production of the high-purity graphite powder.

The invention discloses a Quhao green tea processing technology. The processing technology comprises the following processing steps: fresh leaf spreading, fixation, cool sharing and moisture regaining, rolling, baking for the first time, cool sharing and moisture regaining, processing by frying in a small pot, processing by frying in a big pot, cool sharing and sieving, sufficient drying and cooling for sub-packaging. According to the Quhao green tea processing technology provided by the invention, organic combination is effectively performed on existing processing equipment, technological process and the like; by adopting a segmented and coarse-fine combined processing method, the defects existing widely in current processing technology that the bitter taste of tea soup is strong and the fragrance is easy to mix up with old soup are effectively overcome; the tea soup quality is effectively improved; the taste and flavor of Quhao green tea are guaranteed; the economic benefit of tea peasants is conducive to being improved; therefore, the Quhao green tea processing technology has a relatively strong promotional value and market.

The invention provides an efficient slag-based inorganic phosphorous removal flocculating agent and a preparation method thereof. According to the flocculating agent, coal ash serves as the main raw material, meanwhile monohydrallite is added to supplement the iron element, and the efficient slag-based inorganic phosphorous removal flocculating agent is prepared through a two-section type modification method. The preparation method includes the following steps of raw material preprocessing, alkali leaching and extracting, acid leaching and extracting, mixing and drying. By means of the efficient slag-based inorganic phosphorous removal flocculating agent, defects of aluminum-based coagulation can be overcome in combination with the advantages of ferric flocculant that the alum floc is dense, and the sedimentation rate is high, the phosphorous removal effect can be greatly improved, and the efficient slag-based inorganic phosphorous removal flocculating agent has the advantages of being simple in production process, low in cost, remarkable in coagulation effect and the like.

The invention relates to an electric power material prefabrication and distribution method based on an electronic order mode, belonging to the technical field of material distribution. The invention adopts the electronic order mode to utilize the order App on the terminal equipment such as tablet computer or mobile phone, electronic orders for material requirements are transmitted over the network, carry out material dispatching and production management, while the project is in progress, the prefabrication and distribution of electric power materials shall be carried out, Improved customer engineering, the timeliness of the examination and approval of material demand plans for emergency repair projects and other materials and the timeliness of the supply of materials, The power outage time is shortened, the material delivery situation can be inquired at any time through the electronic map provided by the third party, the human resources and the operation time can be reasonably arranged, the establishment of the supporting material demand order database reduces the compilation link, and the order can be placed with one key, which is accurate, convenient, efficient, and has high customer satisfaction, and promotes the local economic and social development.

The invention discloses a graphite purifying method. The graphite purifying method comprises the following steps that graphite and sodium hydroxide are placed into a crucible together, deionized wateris added and stirred to be uniform by using a glass rod; and the crucible is placed in a chamber electric resistance furnace to be roasted, after the crucible is naturally cooled, the graphite in thecrucible is poured into a beaker, the deionized water is added to wash the graphite, till the graphite is neutral, hydrochloric acid is added to react for a period of time, then the deionized water is utilized for washing the graphite to be neutral, and the purified graphite can be obtained after complete drying is conducted. The graphite purifying method firstly adopts sodium hydroxide to be subjected to a chemical reaction with graphite under the heating condition, the impurities such as silicate and aluminosilicate in the graphite are removed, a compound being water soluble is generated, and impurities in the graphite are removed after the compound is washed. Hydrochloric acid is utilized to remove basic oxide impurities in the graphite, the method is simple, and convenient to operate,the graphite purifying and production efficiency is high, the requirement to the equipment is low, the pollution to the environment is less, and the graphite purifying method has the extremely high practical popularization value.

The invention relates to a self-walking type winding and packaging robot and an article winding and packaging method. The robot completes winding and packaging work of to-be-packaged goods by arranging a film feeding device, an adhesive tape fixing device and a suction cup positioning device on an AGV, and the film feeding device can freely move to correspond to the suction cup positioning device. A suction cup of the suction cup positioning device sucks a thin film tightly and pulls the thin film out of the film feeding device to be pressed to the to-be-packaged goods, a clamping turnover mechanism of the adhesive tape fixing device is used for pulling out an adhesive tape and pasting the adhesive tape to the thin film and the to-be-packaged goods, and then the adhesive tape is tightly attached and cut off through an adhesive tape pressing head on an eccentric shaft of an adhesive tape pressing and cutting-off mechanism. The AGV pulls the thin film to complete winding and packaging of the to-be-packaged goods according to a preset surrounding path. Full-automatic product winding and packaging are achieved in the whole process, the packaging efficiency is improved, winding and packaging of products of different shapes and sizes can be achieved through the surrounding packaging mode, limitation of sites and working environments is avoided, and a high popularization value is achieved.

The invention relates to a method for realizing service orchestration data context sharing and management control under a micro-service architecture. The method comprises the following steps that: a data context definition module defines the specification of data stored in a data context; the data context assembling module is used for assembling context data according to data specifications; the cross-service data context transmission and recovery module automatically transmits the data context to a remote micro-service application; and the data context acquisition module acquires shared datainformation through an interface. The invention further relates to a service orchestration data context sharing and management control system under the micro-service architecture. By adopting the method and the system for realizing context sharing and management control of the service orchestration data under the micro-service architecture, decoupling of the shared data and the service code API isrealized; a configurable mode of shared data is realized; readability, writability, security encryption and other security configurations of the shared data are realized, the complexity of business code development is reduced, and the method has high popularization value.

The invention discloses an intelligent portable traditional Chinese medical science navel treatment moxibustion instrument. The intelligent portable traditional Chinese medical science navel treatmentmoxibustion instrument comprises a housing, as well as an upper cover, a heating structure and a bottom disk which are sequentially arranged from top to bottom, wherein the top of the housing cooperates with the upper cover, and the bottom of the housing cooperates with the bottom disk; a plurality of ventilation holes are formed in the housing; the heating structure comprises an insulating frame, an insulating hood, a heating chamber, a moxibustion cake placing frame and a diversion hood; a first through hole and a second through hole are formed in the insulating frame; an air outlet of a fan mounted on the insulating frame communicates with the first through hole; the insulating hood is arranged below the first through hole; the heating chamber is arranged in the insulating hood; wind inlet holes are formed in the tops of the insulating hood and the heating chamber, and wind outlet holes are formed in the bottoms of the insulating hood and the heating chamber; an opening is formed in the side wall of the heating chamber; the moxibustion cake placing frame can be used for inserting in or drawing out of the heating chamber; the upper part and the lower part of the diversion hood are opened, and the diversion hood is arranged at the lower part of the insulating hood, and is fixed to the bottom disk; and ventilation holes are formed in the upper side wall of the diversion hood;a temperature sensor is arranged on the bottom disk; the temperature sensor and the fan are connected with a control circuit; and the control circuit is connected with a display and a key switch.

A process for forming a hollow member with A complicated cross-section wherein a section of a tube blank first undergoes a bending deformation due to its internal pressure and bend moment generated by the upsetting of an upper die, and is then compressed to be molded under the support of the internal pressure. The process of the invention does not require the reshaping step at an increased pressure. The process can make a hollow member with a complicated cross-section formed under a low pressure, and solves a technical bottleneck relating to a conventional process for forming this kind of members that is subject to an ultrahigh pressure generator.

The invention provides a photonic crystal composite wireless charging device for an implantable device in a living body. The photonic crystal composite wireless charging device comprises a solar cell;an up-conversion light-emitting device for providing visible light for the solar cell and prepared from an up-conversion photonic crystal composite material including a photonic crystal and up-conversion light-emitting particles distributed on the surface and / or in the photonic crystal. The photonic crystal has a periodic arrangement structure of photonic band gap characteristics. The up-conversion light-emitting particles are surface-modified infrared up-conversion nanoparticles. The photonic crystal composite wireless charging device realizes wireless charging by replacing the an abrupt magnetic field by light transportation, has raw materials easy to obtain, a simple method, and good targeted functions, and has wide application and a high practical promotion value in the fields of optoelectronics and energy.

The invention discloses an SD-type AGV (Automated Guided Vehicle) backing-up attitude angle control device based on double-closed-loop PID control. The device comprises: a controller, which is arranged on an AGV body; a first magnetic navigation sensor, which is arranged on an AGV head and is connected to a GPIO port of the controller; a second magnetic navigation sensor, which is arranged on an AGV rear portion and is connected to the GPIO port of the controller; a motion controller, which is in communication with the controller through a CAN; and a servo closed-loop control system, which is in communication with the controller through an RS485. An attitude angle measuring value of backing-up of the AGV body is obtained through a two-stage PID control operation, thereby solving the technical problem that a conventional SD-type AGV can only run in a single direction and does not have a backing-up function.

The invention discloses a rigid pile composite foundation fabricated pile cap and an assembling method thereof. A pile sleeve is arranged at the top end of a rigid pile body, the end, being connectedwith a pile cap plate, of the pile top sleeve is arc, an arc gasket is arranged between the arc end of the pile top sleeve and the pile cap plate, a groove matched with the shape of the arc gasket isformed in the bottom center of the pile cap plate, the arc gasket is separately in contact with the pile top sleeve and the groove, and the arc gasket can separately slide relative to the groove and the pile top sleeve. According to the rigid pile composite foundation fabricated pile cap and the assembling method thereof, general members and materials are adopted, the structure is simple, the durability is high, the mounting is convenient, the assembly process of the pile cap is reduced, the member forming quality is improved, the cost is low, and popularization and use are facilitated.

The invention provides a multipurpose military and police unmanned aircraft system. The multipurpose military and police unmanned aircraft system comprises an unmanned aircraft and a ground control station, wherein the unmanned aircraft comprises rotors, a power system, a frame, a reconnaissance module, attacking modules, an expansion module and a receiver; the rotors are installed on the two endsor two sides of the frame; the power system is installed on the upper part of the frame; the reconnaissance module is installed on one end of the frame through a holder; the attacking modules are mounted on the middle part or both sides of the frame; the expansion module is installed on the other end of the frame; and the ground control station comprises a ground receiver, a controller and a display. The multipurpose military and police unmanned aircraft system of the invention adopts a modular design for the structure, can select corresponding modules according to different task requirements, meets demands of various tasks such as military reconnaissance and attack or police investigation, explosion protection, and rescue, and has a wide application scope and good promotion value.

The invention discloses a graphite purification method, belonging to the technical field of graphite purification. The invention aims to solve the technical problems that an existing method is high energy consumption during purification of graphite to a purity of 99.99% or more and the mode of continuous passing of gas reduces the reaction efficiency of reaction components and impurities and causes wasting of a large amount of atmosphere and increase in cost and environmental protection pressure. The graphite purification method comprises the following steps: carrying out heating to 800-1000 DEG C under the absolute vacuum degree of 10-100 pa, and introducing carbon tetrachloride while keeping the temperature; raising the temperature to 1200-1450 DEG C, keeping the temperature, and alternately introducing carbon tetrachloride and argon; raising the temperature to 1600-1800 DEG C, keeping the temperature, and alternately introducing carbon tetrachloride and argon. According to the method, the consumption of a graphite purification device and energy sources by a conventional high-temperature method can be reduced, the graphite purification temperature is reduced to be within 1800 DEGC and below 2000 DEG C, the utilization rate of carbon tetrachloride and the discharge efficiency of impurity volatile matters can be effectively improved by alternate introduction and exhausting, and the method has the advantages of simple process, high production efficiency, environmental protection and energy conservation.

The invention relates to a photonic crystal composite pressure sensor, which comprises a flexible substrate and a photonic crystal distributed on the surface of or inside the flexible substrate, wherein the photonic crystal can response the deformation of the flexible substrate to generate optical signal change. The invention further relates to a method of the photonic crystal composite pressure sensor, wherein the method comprises: preparing a photonic crystal precursor liquid; preparing a substrate precursor liquid; and compounding the photonic crystal precursor liquid and the substrate precursor liquid to obtain the photonic crystal composite pressure sensor. The invention further relates to an optical detecting method, which comprises: placing a hollow cylinder above the photonic crystal composite pressure sensor; and applying dynamic pressure to the hollow cylinder, and carrying out dynamic detection on the optical signal of the photonic crystal composite pressure sensor through the hollow portion of the hollow cylinder by an optical probe. According to the present invention, the photonic crystal composite pressure sensor has sensitive linear pressure response characteristic in a low pressure region of 0-10 KPa, and has characteristics of easily available raw materials, simple preparation method and wide application range.

The invention relates to a lubrication oil ageing simulation assessment method which can simulate an oxidation process of lubrication oil in high-temperature and high-pressure condition when the lubrication oil contain moisture and air / oxygen. The method comprises the following steps of adding 0.05% to 15% by mass of water into lubrication oil to be tested, putting into metal catalyst, introducing 0.1 to 35MPa oxygen, keeping the oil temperature at 100 to 280 DEG C until the gas pressure is reduced by 10-50 percent, and testing the items like the viscosity, the chromaticity, the acid value and the filterability of the lubrication oil, the oil sludge content, the catalyst weightlessness and the test running duration. The ageing resistance of the lubrication oil can be analyzed by comprehensively comparing the change of the tested items. The lubrication oil ageing simulation assessment method not only can simulate lubrication oil ageing in the moisture-contained, high-pressure and high-temperature condition, but also can quickly and comprehensively assess lubrication oil ageing; furthermore, the assessment results are objective, and the test material cost and the labor cost are effectively reduced.

The invention discloses a flexible photon pressure sensor, a preparation method and application thereof. The preparation method comprises the following steps: preparing a photonic crystal precursor solution; preparing a flexible substrate precursor solution, wherein the flexible substrate precursor solution contains sodium alginate; and compounding the photonic crystal precursor solution and the flexible matrix precursor solution to obtain the flexible photon pressure sensor. The sensor can generate corresponding optical signal changes for the deformation of the flexible substrate; and the response is real-time, is not influenced by propagation distance, electromagnetic interference or noise, and has better mechanical property and higher sensitivity.

The invention provides a duck circovirus tandem repeated sequence and application thereof and belongs to the technical fields of bioengineering and molecular biology. The invention firstly discovers aQTR sequence in which DuCV specifically exists, and the tandem repeated sequence does not appear in other circoviruses. QTR can serve as a gene I type and II type DuCV genetic typing new molecular marker; meanwhile, the invention proves the effect of regulating and controlling mRNA stability by the QTR serving as a DSE component by a dual-luciferase reporter system and a semi-anchored reverse mutation PCR technology, and defines the important effect of regulating and controlling virus gene expression by the QTR. The invention provides important technical and theoretical basis for researchingDuCV genotyping and virus replication regulation and control mechanism.

The invention discloses an intelligent business management system, which is formed by mobile terminal ports, mobile merchant ports, merchant ports, provider ports, local servers and a central server. All-directional specialized market intelligent system management can be finished, a video function is provided, remote intelligent humanized interactive functions of point to point between market management and individual merchants and point to surface between market management and all merchants can be realized, exchange and interaction between more specialized and more accurate industrial supply and provide of each specialized market can be realized, the service efficiency and economic output of the specialized market can be greatly enhanced, real-time interaction between the providers and the merchants, between the merchants and between the merchants and consumer terminals can be realized, mobile application of market management, providers and merchants, merchants, merchants and the consumer market is not limited by time and place, and strong popularization values and application values are provided.

The invention relates to a structured light illumination-based fluorescent dipole orientation method. The method is characterized by comprising the following steps of 1) obtaining an original image and modulation information of a fluorescent sample with a polarization property by adopting a structured light microscopic system, and obtaining spatial frequency domain components corresponding to different spatial angles, wherein the original image refers to a fluorescent sample image collected through a camera sensor of the structured light microscopic system, and the modulation information refers to modulation intensity, a phase and a spatial angle of the structured light microscopic system; 2) performing spatial dimensional frequency domain splicing on all the spatial frequency domain components to obtain a two-dimensional super-resolution spatial image of the fluorescent sample, and expanding angular dimensional frequency domains of all the spatial frequency domain components to obtainpolarization angle information of the fluorescent sample; and 3) performing matching on the two-dimensional super-resolution spatial image of the fluorescent sample and the polarization angle information to obtain a super-resolution fluorescent dipole orientation result.

A photonic crystal composite pressure sensor includes a flexible substrate and a photonic crystal, the photonic crystal is distributed on the surface or inside of the flexible substrate, and the photonic crystal can generate optical signal changes in response to the deformation of the flexible substrate. The invention also relates to a method for a photonic crystal compound pressure sensor, comprising: preparing a photonic crystal precursor liquid; preparing a matrix precursor liquid; compounding the photonic crystal precursor liquid and the matrix precursor liquid to obtain a photonic crystal compound pressure sensor. The present invention also relates to an optical detection method, comprising: placing the hollow cylinder above the photonic crystal composite pressure sensor; applying dynamic pressure to the hollow cylinder, and the optical probe applies the photonic crystal composite pressure through the hollow part of the hollow cylinder The optical signal of the sensor is dynamically detected. The invention has sensitive linear pressure response characteristics in the low-pressure area of ​​0-10KPa, the raw materials are easy to obtain, the preparation method is simple, and the application range is wide.

Provided is a V-shaped conveying chain. The V-shaped conveying chain comprises a left chain set and a right chain set, which are arranged in parallel and identical in structure. The left chain set andthe right chain set are connected through a plurality of rigid connecting pieces and each comprise multiple chain links, each chain link comprises an inner side inner chain link plate, an inner sideouter chain link plate, a bearing wheel and a bearing, and the inner and outer chain link plates of the adjacent chain links are connected end to end; long central spindles penetrate through the leftand right chain links; the bearing wheels exceed V-shaped panels in the width direction, and two ends of V-shaped conveying panels are fixed to the inner side inner chain link plates of the left and right chain sets or are fixed to the inner side outer chain link plates of the left and right chain sets correspondingly. The rigid connecting pieces can consist of the long central spindles and the V-shaped conveying panels; the long central spindles or the bearing wheels serve as traction wheels meshing with conveyor chain wheels. The V-shaped conveying chain comprises a wheel-separated mode thatthe bearing wheels and traction wheels are separated and a wheel-integrated mode that the bearing wheels and the traction wheels are integrated. The structure is simple, the manufacturing difficultyis low, and the cost is relatively low.