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43results about How to "Avoid the influence of external factors" patented technology

Fracturing pressure determining device and method for carbon dioxide fracturing device

The invention discloses a fracturing pressure determining device and method for a carbon dioxide fracturing device. The device comprises an energy leaking cover, a pressure sensor and a signal collecting unit, the energy leaking cover is of a barrel-shaped structure with openings in two ends, the energy leaking cover is installed on an energy leaking head of the fracturing device through an open cover at one end in an opposite-fixation mode, and the pressure sensor is attached to the inner wall of the energy leaking cover and is in signal connection with the signal collecting unit. Through the pressure sensor, during high-speed gasification of liquefied carbon dioxide, a fracturing pressure signal of the fracturing device is measured and transmitted to the signal collecting unit. The fracturing pressure determining device is mainly used for accurately measuring the fracturing pressure of the carbon dioxide fracturing device. The device carries out an experiment conveniently, is easy to operate and accurate and reliable in measurement result, provides possibility for accurate calibration of the liquefied carbon dioxide, and not only can provide reliable data for designing and producing of fracturing devices of different dimensions, but also can analyze and research the change relation between fracturing pressure and distance, so that the utilization rate of energy is increased.
Owner:CENT SOUTH UNIV

Chemical synthesis method for environment-friendly inorganic lead-free halide perovskite thin film

The invention discloses a chemical synthesis method for an environment-friendly inorganic lead-free halide perovskite thin film. The chemical synthesis method comprises the steps of (1) dissolving SnX<2> into an organic solvent, and performing magnetic stirring until the SnX<2> is fully dissolved; (2) adding CsX and stirring in a light-shading condition to obtain a CsSnX<3> / Cs<2>SnX<6> inorganic lead-free halide perovskite precursor solution; (3) performing ultrasonic cleaning on a substrate material, and drying by nitrogen; (4) putting the substrate material into an ultraviolet ozone cleaner to be subjected to radiation treatment; (5) paving the CsSnX<3> / Cs<2>SnX<6> inorganic lead-free halide perovskite precursor solution on the bottom surface of the substrate material, and performing spin coating; and (6) heating the material and performing thermal insulation for a certain time, and cooling to room temperature to obtain the CsSnX<3> / Cs<2>SnX<6> inorganic lead-free halide perovskite thin film. The CsSnX<3> / Cs<2>SnX<6> inorganic lead-free halide perovskite thin film prepared by the chemical synthesis method is high in stability, low in cost, low in equipment requirement, green, environment-friendly and pollution-free, and suitable for large-scale industrial production.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Controller time synchronizing method of industrial control system

The invention provides a controller time synchronizing method of an industrial control system. The controller time synchronizing method of the industrial control system comprises the following steps that a time synchronization reference source sends synchronization pulse to a node controller and meanwhile transmits synchronization time information; while receiving the synchronization pulse, the node controller triggers a synchronization timer of the node controller; when receiving the synchronization time information, the node controller takes the sum of the timing time of the timer and the synchronization time in the synchronization time information as the calibration time for time synchronization calibration. Therefore, the controller time synchronizing method of the industrial control system can facilitate networking and effectively avoid influence of environmental factors, and meanwhile can effectively ensure time synchronization precision and working stability.
Owner:CHONGQING CHUANYI AUTOMATION

Building energy saving centralized control method

The invention discloses a building energy saving centralized control method, comprising: S1, leading electricity-using equipment to enter an energy saving rate test stage and testing energy saving rate; S2, judging whether the energy saving rate is larger than or equal to the preset energy saving rate, if yes, executing S4, and if no, executing S3; S3, revising control parameters of the electronic equipment or replacing the electronic equipment and returning to S1; and S4, leading electricity-using equipment to enter a normal working stage until the next energy saving rate test stage. In the energy saving rate test stage, the electricity-using equipment works in an energy saving mode and a non-energy saving mode in an alternative way, and energy saving rate is calculated according to energy consumption under two working modes. Compared with the prior art, the invention can test energy saving situation of electricity-using equipment at any time, so as to discover electricity-using equipment with poor energy saving effect in time according to the test result, thus being favorable for effectively avoiding long-term energy waste and having high test accuracy.
Owner:上海银欣高新技术发展股份有限公司

Nano silver high-efficiency antibacterial composition used for gynecologic inflammation and preparation method thereof

The invention discloses a nano silver high-efficiency antibacterial composition used for gynecologic inflammation and a preparation method thereof. The acting component in the formation of the nano silver high-efficiency antibacterial composition is nano silver, and the composition comprises two parts which are respectively a nano silver vaginal effervescent tablet and a slow-release tablet. The invention is suitable for female vaginal application and combined use. When in use, the effervescent tablet is firstly dissolved into water, an affected part is washed, then the slow-release tablet is put into the mixture, the principle of the release of a medicine can be fully utilized, and the sufficient and uniform medicine concentration is ensured, thereby killing pathogenic bacteria quickly and thoroughly and achieving the aim of cure. The combination has convenient use, is also convenient to carry, is easily accepted by a patient and is suitable for clinical popularization and use. The invention also discloses the preparation method. The invention has stable quality of a product, simple preparation process, controllable quality and lower cost, can adapt to industrialized large-scale production, ensures the quality of the product and can also lower the application burden of illness greatly. The composition prepared by the invention is mainly applied to vaginitis, urethritis, pelvic inflammation, cervicitis and the like in the gynecologic inflammation, and the cure rate can reach 90.3 percent.
Owner:王明霞 +1

Ratio-dependent florescent probe for identifying Zn<2+> and S<2-> in relayed manner as well as synthesis method and application of ratio-dependent florescent probe

The invention relates to a ratio-dependent florescent probe for identifying Zn<2+> and S<2-> in a relayed manner. The ratio-dependent florescent probe has a structure formula described in the specification. The ratio-dependent florescent probe is synthesized by adopting the specific steps of: with DMF (Dimethyl Formamide) as a solvent, stirring raw materials, namely N-(2-(1H-benzimidazoly)phenyl)-2-chloroacetamide and bis-(pyridylmethylene) amine, according to a molar ratio of 1: 2-1: 4 at room temperature for reaction for 7-10 hours to obtain a solution; and adding distilled water to the solution, adjusting pH of the solution to 6-7 by using diluted hydrochloric acid, filtering to collect generated precipitate, and recrystallizing by using acetonitrile to obtain the florescent probe N-(2-(1H-benzimidazoly)phenyl)-2-bis(2-pyridylmethylene) acetamide. The ratio-dependent florescent probe has the advantages of favorable sensitivity, strong antijamming capability and friendliness to environment in the process of carrying out monitoring analysis and tracing on Zn<2+> and S<2-> in a water environment system and a biological cell system.
Owner:BOHAI UNIV

Testing equipment and testing method for mobile phone circuit chip

The invention belongs to the technical field of chip detection, and particularly relates to mobile phone circuit chip testing equipment, which comprises a fixing plate, wherein a first air cylinder is fixedly connected to the center of the bottom end of a bracket, the output end of the first air cylinder is fixedly connected with an upper detection seat, a lower detection seat is fixedly connected to the position, opposite to the upper detection seat, of the fixing plate, a placement groove is formed in the top end of the lower detection seat, and a first cavity is formed in the lower detection seat. According to the testing method of the mobile phone circuit chip, the chip is placed in a testing placement groove to be detected; when the mobile phone circuit chip is tested through the testing method, the testing position of the mobile phone circuit chip is adjusted through a position adjusting plate, so that the measuring accuracy is guaranteed; and through folding of the upper detection seat and the lower detection seat, the mobile phone circuit chip is ensured to be in a dust-free detection state, so that the problem that when the chip is placed in a detection machine, the contact between the chip and a probe is not tight enough, poor contact easily occurs, and a detection result is wrong is solved.
Owner:深圳市磐锋精密技术有限公司

Ear back contact type thermodetector

InactiveCN102525430AAvoid situations where it's still onEffective protectionDiagnostic recording/measuringSensorsContact typeEngineering
The invention provides an ear back contact type thermodetector which comprises a probe for detecting temperature, a protection casing, a spring, an elastic switch for controlling the on / off of the ear back contact type thermodetector and a shell, wherein the protection casing is shaped like a tube with two open ends, the tubular cavity of the protection casing is used for accommodating the probe, one end of the elastic switch is connected with the probe, the other end of the elastic switch is fixed on the shell, one end of the spring is connected with the protection casing and the other end of the spring is connected with the shell. The ear back contact type thermodetector has the beneficial effects that the telescopic protection casing is arranged for effectively protecting the probe and preventing influence from external factors to increase detection accuracy; since the elastic switch for controlling the on / off of the ear back contact type thermodetector is arranged at the tail part of the probe, the situation that the ear back contact type thermodetector is in an ON state when not used for detecting temperature is avoided; and when the probe jiggles and touches the elastic switch, the ear back contact type thermodetector begins to detect temperature, which accords with human engineering.
Owner:SHENZHEN H&T INTELLIGENT CONTROL

Method for rapid propagation and detoxifying of stem tips of fragrant pomelo

The invention relates to the technical field of detoxification and propagation of fruit trees, and in particular relates to a method for rapid propagation and detoxifying of stem tips of fragrant pomelo, and the method comprises the following steps: (1) selection and disinfection of explants, to be more specific, taking a fragrant pomelo tuber in spring or autumn for indoor germination, spraying regularly a bactericide after buds grow up, two weeks later, taking the buds again, after heat treatment in a 5% sodium hypochlorite solution of the buds for 8-10 minutes at 35-40 DEG C, putting the buds on a super clean bench under an anatomical lens for stem tip exfoliation under 8-40 times, and selecting the stem tip or a nucellar tissue of an apical bud for standby use; and (2) primary culture,to be more specific, putting the selected stem tip or the nucellar tissue once again in the 5% sodium hypochlorite solution for treating for 3-5min, and putting the stem tip or the nucellar tissue into a primary medium for rapid propagation and growth. The method for rapid propagation and detoxifying of the stem tips of the fragrant pomelo is established by selection of mediums and hormones in each stage of sterilization and tissue culture of the external explants, provides a theoretical basis and a technical support for factory production of fragrant pomelo tissue culture seedlings, and provides a new way for selection and breeding of new varieties.
Owner:HUNAN UNIV OF SCI & ENG

Preparation method of soft package battery

The invention provides a preparation method of a soft package battery. The method comprises the following steps that a laminated or wound battery cell is placed in an inner cavity of a clamp, the clamp clamps and heats the battery cell, and the inner cavity of the clamp is vacuumized at the same time; after baking is completed, the clamp is opened to inject liquid into the battery cell, after liquid injection is completed, the clamp clamps the battery cell slightly and heats the battery cell, and meanwhile, the inner cavity of the clamp is vacuumized repeatedly to infiltrate the battery cell;after infiltration is completed, the clamp clamps the battery cell and heats the battery cell, meanwhile, the inner cavity of the clamp is vacuumized to a high degree, and formation is started; and after the formation is finished, the battery cell is packaged secondarily to finish preparation of the soft package battery. Compared with the prior art, baking, liquid injection and formation are carried out in the same clamp in a centralized manner, progressing and simplifying are carried out layer by layer, the time from baking to formation in battery cell preparation is shortened step by step, and the production efficiency of the battery is greatly improved.
Owner:东莞汇洋动力科技有限公司

Calibration device and method of rotor blade embedded micro pressure sensors

The invention discloses a calibration device method of rotor blade embedded micro pressure sensors. The device and the method aim to realize integral calibration of the embedded pressure sensors on arotor blade. The method specifically includes the steps that the micro pressure sensors are embedded in the rotor blade and then placed in a closed container, the pressure and temperature in the closed container are adjusted, data acquisition of the micro pressure sensors is completed through a data acquisition system outside the closed container after the target temperature and pressure are reached, and performance parameters of the micro pressure sensors are calibrated through a computer. Compared with a traditional embedding-after-calibration method, the calibration device achieves the integral calibration of the sensors after the sensors are embedded in the blade, the sensors embedded in the blade are calibrated before testing, and the influence of external factors before testing is avoided.
Owner:LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT

Method for quantitatively controlling operational stability of servo mechanism by using automatic gear grinding technology

ActiveCN105258945ARealize automatic running-inTargetedMachine gearing/transmission testingGear grindingGear wheel
The invention relates to a method for quantitatively controlling the operational stability of a servo mechanism by using an automatic gear grinding technology. The method can be implemented through adopting an automatic running-in and stability test system. The method includes the steps of movement control, data collection and analysis, and running-in parameter and evaluation criterion establishment. According to the movement control, the servo mechanism moves in a reciprocating manner in an operation position range under control according to movement parameters and operation positions, and automatic gear running-in is performed on the transmission chain of the servo mechanism. According to the data collection and analysis, in an automatic gear running-in process, work state parameter data are acquired, and are processed, and processing results are display in real time. According to the running-in parameter and evaluation criterion establishment, operational stability quantitative detection is performed on the servo mechanism, and the running-in process parameters of the transmission chain of the servo mechanism are determined, and quantitative evaluation criteria of qualified running-in are established. With the method of the invention adopted, automatic running-in of the transmission chain of the servo mechanism can be completed with shortest time and minimum manpower and material resources, and the stability detection of the servo mechanism can be realized with quantitative evaluation indexes, and malfunctioned products can be reduced, and the rate of rework in processes can be reduced, and batch production efficiency and product reliability can be improved.
Owner:SHANGHAI RADIO EQUIP RES INST

Single mode double layer parallel optical fiber array

The invention belongs to the technical field of optical fibers, and particularly relates to a single mode double layer parallel optical fiber array. The array comprises a first array substrate, a second array substrate, a cover plate, a silicone cushion layer, a protective cover sheet, splints, a small hinge, an optical fiber branch line, an MT joint, a V-shaped groove, a positioning right angle groove, a rubber connecting column, a connecting block, a positioning right angle inserting board, an adhesive layer, a silicone pressing piece and a glue positioning strip. The array achieves the fixing effect of the optical fibers to prevent the falling off of the optical fibers by arranging the splints on the surface edges of the first array substrate and the second array substrate and bonding the silicone cushion layer and clamping fiber branches in the optical fiber array by rotating the splints, and the exposed fiber branches of the surfaces of the first array substrate and the second array substrate are protected by the protective cover sheet and the silicone cushion layer to prevent the fiber branches from being affected by external factors.
Owner:广东安捷康光通科技有限公司

A single-mode double-layer optical fiber array

The invention belongs to the field of optical fiber technology, specifically a single-mode double-layer parallel optical fiber array, including an array substrate one, an array substrate two, a cover plate, a silica gel pad, a protective cover sheet, a splint, a small hinge, an optical fiber branch line, MT joints, V-shaped grooves, positioning right-angle grooves, rubber connecting columns, connecting blocks, positioning right-angle inserts, adhesive layers, silicone pressure sheets and glue positioning strips. In the present invention, a splint is arranged on the surface edge of the array substrate 1 and the array substrate 2, and the silica gel pad is bonded and connected, and the optical fiber branch connected to the optical fiber array is clamped and connected by the rotating splint, so as to realize the fixing effect on the optical fiber and avoid the loss of the optical fiber, and The exposed optical fiber branches on the first surface of the array substrate and the second surface of the array substrate are protected by the protective cover sheet and the silica gel pad to prevent the optical fiber branches from being affected by external factors.
Owner:广东安捷康光通科技有限公司

Method for detecting resonant wavelength shift of integrated resonant ring

The invention discloses a method for detecting resonant wavelength shift of an integrated resonant ring. A pair of lasers with a frequency difference are generated to serve as detecting optical signals after a single-frequency laser passes through the integrated resonant ring; the resonant wavelength shift amount is obtained through detection of the phase difference of the detecting optical signals. According to the method, a phase detection method is adopted, the intensity noise caused by the factors of the stability of a light source, vibration of an optically coupled system between the integrated resonant ring and an integrated chip is effectively reduced, and the detecting accuracy is improved.
Owner:NINGBO YINUO ELECTRONICS TECH

Shockproof buffering device for intelligent instrument

The invention discloses an anti-shock buffer device for an intelligent instrument, which comprises a fixed sleeve, a pipeline, an air pump fixed sleeve and an air pump. There is a pressure sensor, an instrument fixing plate is arranged above the pressure sensor, the upper end of the instrument fixing plate is connected with a shock absorber, the pipeline is connected with a connecting pipe, the connecting pipe is connected with an instrument base, and the upper end of the instrument base is An instrument panel is installed, and a pointer is arranged on the instrument panel, and the pipe is connected to the fixed sleeve through fixing screws. The control box is composed of a control box shell and a control box cover, and a control panel is arranged in the control box. and indicator lights. The anti-shock buffer device of the smart meter is equipped with a double buffer device to ensure the stability of the working environment of the smart meter, prolong the service life of the smart meter, make the detection data of the smart meter more accurate, and avoid being affected by external factors.
Owner:山东恒德智能装备科技有限公司

A new energy vehicle charging line recovery device based on capacitive sensing

The invention relates to the technical field of new energy vehicles, and discloses a charging line recovery device for new energy vehicles based on capacitive sensing, which includes a casing, the outside of the casing is movably connected with a sensing component, and the inside of the casing is fixedly connected with a Motor one, the external movable connection of motor one is provided with a bevel gear, the external movable connection of the bevel gear is provided with a time-delay assembly, the inside of the shell is fixedly connected with a fixed rod, and the bottom of the fixed rod is fixedly connected with a contact point; through motor one, the bevel gear, Under the interaction between the delay component, the fixed rod, the contact, the rotating shaft, the wire wheel, the charging line, and the charging gun, when the user does not receive the charging line into the shell due to negligence or other reasons, such a structure It can play a role of delay between them, so that the charging cable can be retracted after the user leaves, avoiding the immediate retraction and causing personal injury, which is more in line with the actual situation.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID

A chemical synthesis method of inorganic non-lead halide perovskite thin film

The invention discloses a chemical synthesis method of an inorganic non-lead halide perovskite thin film, which comprises: (1) dissolving SnX2 in an organic solvent, and magnetically stirring until completely dissolved; (2) adding CsX and mixing, under light-proof conditions Stir to obtain the CsSnX3 / Cs2SnX6 inorganic non-lead halide perovskite precursor solution; (3) ultrasonically clean the substrate material and dry it with nitrogen; (4) place the substrate material in an ultraviolet ozone cleaner for irradiation treatment (5) Spread the CsSnX3 / Cs2SnX6 inorganic non-lead halide perovskite precursor solution on the surface of the substrate material, and then spin-coat; (6) heat the spin-coated material for a certain period of time, then cool it to room temperature, The CsSnX3 / Cs2SnX6 inorganic non-lead halide perovskite film is obtained. The CsSnX3 / Cs2SnX6 inorganic non-lead halide perovskite film prepared by the invention has good stability, low cost, low equipment requirements, and is green and pollution-free, so it is very suitable for large-scale industrial production.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Line inspection method and system based on unmanned aerial vehicle, and electronic equipment

The invention relates to the field of line inspection, and particularly discloses a line inspection method and system based on an unmanned aerial vehicle and electronic equipment. According to the method, the core function of a line is current transmission, and the change of the current can cause the change of a magnetic field, so that the detected magnetic field values are processed, and a high-dimensional correlation mode between the magnetic field values of all points is mined based on a deep learning convolutional neural network, so that the electric transmission of a power transmission line is detected through the magnetic field value of each point on the power transmission line detected by an unmanned aerial vehicle during inspection. Through the mode, the detected magnetic field value can be prevented from being influenced by external factors, so that the final detection result is prevented from being influenced.
Owner:HANGZHOU POLYTECHNIC

Device and method for measuring cracking pressure of a carbon dioxide cracker

The invention discloses a fracturing pressure determining device and method for a carbon dioxide fracturing device. The device comprises an energy leaking cover, a pressure sensor and a signal collecting unit, the energy leaking cover is of a barrel-shaped structure with openings in two ends, the energy leaking cover is installed on an energy leaking head of the fracturing device through an open cover at one end in an opposite-fixation mode, and the pressure sensor is attached to the inner wall of the energy leaking cover and is in signal connection with the signal collecting unit. Through the pressure sensor, during high-speed gasification of liquefied carbon dioxide, a fracturing pressure signal of the fracturing device is measured and transmitted to the signal collecting unit. The fracturing pressure determining device is mainly used for accurately measuring the fracturing pressure of the carbon dioxide fracturing device. The device carries out an experiment conveniently, is easy to operate and accurate and reliable in measurement result, provides possibility for accurate calibration of the liquefied carbon dioxide, and not only can provide reliable data for designing and producing of fracturing devices of different dimensions, but also can analyze and research the change relation between fracturing pressure and distance, so that the utilization rate of energy is increased.
Owner:CENT SOUTH UNIV

A Data Aided Judgment Method Based on Dynamic Statistics

The invention relates to a data-aided judgment method based on dynamic statistics. The method sets the attention threshold interval on the basis of the standard judgment basis for the collected electrification detection data, and specifically includes: a first judgment step of preliminary judgment according to the standard judgment basis A statistical step of performing data statistics on the electrification detection data and setting a caution threshold interval according to the statistical results; a second judgment step of assisting judgment based on the electrification detection data of each device under test and the set attention threshold interval. Compared with the prior art, the present invention has the advantages of high judgment result precision, high reliability of auxiliary judgment and the like.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +2

Saline-alkali tolerant germination box for corn seeds

ActiveCN114451099AAvoid phenomena that affect testingImprove accuracyPlantingDibble seedersSeed testingEnvironmental geology
The invention relates to the field of corn seed testing, in particular to a corn seed saline-alkaline tolerant germination box which comprises a bearing base, a supporting piece is installed on the upper end face of the bearing base, a germination box body is embedded in the end of the supporting piece, a lifting ventilation piece is installed over the germination box body, and a pushing thorn piece is rotatably installed in the germination box body. An annular guide pipe is arranged on the outer side of the germination box, an annular pipe body is arranged above the thorn pushing piece in the germination box, the annular pipe body is communicated with the annular guide pipe, and a plurality of water dripping holes are formed in the lower end face of the annular pipe body in a penetrating mode. According to the device, the convenience during water injection can be ensured while the test accuracy is improved, and the convenience during corn seed planting is effectively improved.
Owner:山东滨州国家农业科技园区管理服务中心(滨州黄河三角洲高效生态产业现代技术研究院)

Centralized control method for building energy saving

The invention discloses a building energy-saving centralized control method, which includes: S1: using electrical equipment to enter the energy-saving rate detection stage, and detecting the energy-saving rate; S2: judging whether the detected energy-saving rate is greater than or equal to the preset energy-saving rate, if it is judged to be ' If yes', execute step S4, if judged as 'no', execute step S3; S3: modify the control parameters of the electrical equipment or replace the electrical equipment, and then return to step S1; and S4: use the electrical equipment to enter the normal working stage , until the next energy-saving rate detection stage. In the energy-saving detection stage, the electrical equipment alternately works in the energy-saving and non-energy-saving working modes, and calculates the energy-saving efficiency according to the energy consumption data in the two working modes. Compared with the prior art, the present invention can detect the energy-saving status of electrical equipment at any time, so that electrical equipment with poor energy-saving effect can be found in time according to the detection results, which is beneficial to effectively prevent long-term energy waste, and at the same time, the detection is accurate high sex.
Owner:上海银欣高新技术发展股份有限公司

Capacitive two-dimensional force sensor

The invention belongs to the technical field of sensors, and particularly relates to a capacitive two-dimensional force sensor which is mainly used for increasing the response speed and achieving digital output of the sensor by detecting capacitance. The device comprises a strain structural body, the strain structural body comprises a fixed shell arranged on the periphery, a strain table arranged in the center and a plurality of elastic pieces connected between the strain table and the fixed shell, the device further comprises a circuit integrated board arranged at the lower ends of the elastic pieces, and the circuit board comprises a conductive plane. The plurality of elastic pieces and the single conductive plane form a plurality of groups of detection capacitors; the circuit board is integrated with a capacitance detection module which is used for detecting a capacitance change value of a detection capacitor; the processing module is used for processing the capacitance change value into a digital signal; and the communication module is used for outputting the digital signal to a client. The operation of arranging a plurality of fixed polar plates for a plurality of elastic pieces serving as movable polar plates in a matched manner is reduced, and the manufacturing is time-saving and labor-saving.
Owner:航天南洋(浙江)科技有限公司
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