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136results about How to "Real data" patented technology

Method for measuring planta pressure for rehabilitation therapy

The invention relates to a method for measuring planta pressure for rehabilitation therapy. The method is characterized in that thin film piezoresistive type pressure sensors are adopted to be placed on planta pressure points in left and right sock linings, each sock lining is of a three layer structure, and the top layer and the bottom layer are fiber layers; the thin film piezoresistive type pressure sensors are tightly adhered to and fixed on the bottom layers closely, are fixedly connected with the fibers at the top layers through soft salient points, and transmits the acquired resistance signals corresponding to the pressure to two signal processing transmitters which are corresponding to the pressure sensors of the left and right sock linings, the resistance signals are subjected to resistance-voltage conversion and wave filtration and then are output to two corresponding micro processors so as to be subjected to AD (analog-to-digital) conversion respectively; data acquired from two feet are merged into a data packet and is transmitted to a receiver; the receiver transmits the data of the left and right feet to a PC (personal computer) through a USB (universal serial bus); and the PC reads the data through the triggering of a timing device, and unpacks the data packet, and signal processing and three dimensional display are carried out through software.
Owner:SOUTHEAST UNIV

Equipment and method for testing high-speed tensile stress and strain of material

The invention discloses equipment for testing high-speed tensile stress and strain of a material. The equipment comprises a test sample, a high-speed tensile testing machine, a strain gauge, a light source, a high-speed camera and a controller, wherein the test sample is shaped like a dumbbell, the middle part thereof is a parallel section, the lower part thereof is an elastic section, and the parallel section is sprayed with speckles; the high-speed tensile testing machine is used for stretching the test sample; the strain gauge is stuck on the elastic section of the test sample; a strain meter is used for receiving data transmitted from the strain gauge; the light source is used for aligning a test part of the test sample so as to make the speckles sprayed on the surface of the test sample clearly visible; the high-speed camera is used for aligning the parallel section of the test sample; the controller is used for receiving data transmitted from the high-speed tensile testing machine, the high-speed camera and the strain meter, and drawing a stress-strain curve of the test sample. The invention further provides a method for testing the high-speed tensile stress and strain of thematerial. Through the equipment and the method, the problem of oscillation of the stress-strain curve of the material under a high strain rate can be effectively solved, so that a test result becomesaccurate.
Owner:武汉钢铁有限公司

Seepage testing apparatus and method for rock with single fracture

The invention provides a seepage testing apparatus and method for rock with a single fracture, belonging to the technical field of laboratory rock seepage measurement equipment. According to the invention, the real three-dimensional morphology of the surface of a rock fracture is obtained through scanning, and authenticity of the single fracture included in a test piece is realized through 3D printing technology, so data obtained through experiments is more accurate, scientific and real; a detachable test piece loading seal chamber is designed in the invention and the contact surfaces of the test piece and the seal chamber are bonded via an epoxy resin adhesive, so sealing surrounding the test piece is guaranteed, water is only allowed to penetrate through the fracture of the test piece, and accuracy and authenticity of fracture seepage testing are guaranteed; adjustability of the fracture of the test piece in testing is realized by dismounting and replacing a sealing device loaded with test pieces with different fracture openness; and since the designed sealing device has the characteristic of compression resistance, the range of applicable hydraulic pressure of the apparatus can be greatly improved, so the change trend of penetration characteristics of fracture seepage under different hydraulic pressures can be accurately obtained.
Owner:LIAONING TECHNICAL UNIVERSITY

Method for testing braking force of muzzle brake

The invention discloses a method for testing braking force of a muzzle brake. The method is characterized in that four measuring points on the outer surface of a barrel close to the muzzle brake are symmetrically selected, a unidirectional strain gauge is adhered on each measuring point, and directions of sensitive grids are coincided with the axial direction of the barrel; the strain gauges of the measuring points on upper and lower surfaces of the barrel form a bridge system, the strain gauges of the measuring points on left and right surfaces of the barrel form another bridge system, and an average value is solved via strain on the two bridge systems; a gun shoots, the muzzle brake is impacted by a gas flow of the gun in an aftereffect period, tensile force is applied to the barrel by the muzzle brake, and accordingly the barrel stretches and deforms; and the strain gauges sense that the barrel stretches and deforms, electric signals are generated and are transmitted to a data acquisition unit by a dynamic strain indicator, the axial strain of the barrel caused by the muzzle brake is acquired via data processing, and the braking force is acquired by the aid of the Hooke's law. The method has an epoch-making significance in studying a law of recoil resistance of guns, reducing shooting exciting force and vibration of muzzles and improving shooting dispersion of the guns.
Owner:中国兵器工业第二0二研究所

Intermediate-frequency and radio-frequency universal target simulator for pulse pressure radar

ActiveCN102419434AAvoid amplitude balanceAvoid phase balanceWave based measurement systemsFrequency spectrumIntermediate frequency
The invention discloses an intermediate-frequency and radio-frequency universal target simulator for a pulse pressure radar. The target simulator comprises a power supply module, a reference source generating module, a control display module, an intermediate frequency analog signal generating module, an amplitude regulating module and a hybrid frequency filtering module; the amplitude regulating module is divided into amplitude regulating modules A and B; the hybrid frequency filtering module is divided into hybrid frequency filtering modules A and B; the power supply module is connected withother modules; the reference source generating module is respectively connected with the control display module and the intermediate frequency analog signal generating module; the control display module is respectively connected with the intermediate frequency analog signal generating module, the amplitude regulating module A and the amplitude regulating module B; the intermediate frequency analog signal generating module is respectively connected with the amplitude regulating module A and the amplitude regulating module B; the amplitude regulating module A is connected with the hybrid frequency filtering module A; and the amplitude regulating module B is connected with the hybrid frequency filtering module B. The target simulator provided by the invention has the advantages of simplifiedcircuit, pure frequency spectrum, integrity of the intermediate frequency and the radio frequency, abundant functions, real data and strong pertinence.
Owner:TIANWEI ELECTRONICS SYST ENG

Multi-network coverage apparatus and method having network selection function

The present invention relates to a multi-network coverage apparatus and a multi-network coverage method having a network selection function. The multi-network coverage apparatus comprises a core processing module, a wireless communication module and an energy supply module; wherein the core processing module is used for controlling the multi-network coverage apparatus to achieve self-organized networking with other network apparatuses, and selecting a corresponding communication mode for performing data transmission according to attributes of data to be transmitted when there is data needing to be transmitted after the networking; the wireless communication module is used for providing a plurality of wireless communication modes for the core processing module to select during networking and data transmission; and the energy supply module is used for providing energy supply for the multi-network coverage apparatus. The multi-network coverage apparatus and the multi-network coverage method of the present invention improve a survival capability, an expansion capability and reliability of a network in a complex environment, reduce the number of various apparatuses in the network, facilitate management of the network, and reduce investment cost of the apparatuses.
Owner:INST OF INFORMATION ENG CAS

Water injection technological process using three parameters test curve for layered pulling and running for water injection allocation

The present invention relates to a water injection technological process by applying three parameter test curve for delamination casting and measure which belongs to the technical field of oil layer test in petroleum exploitation. In prior oil field development, the method of casting and measure includes nozzle exchanging method and water exchanging method. The existing method needs block measure and casting, test a point at every layer segment can only verify separate zone waterflooding volume and cannot select the mouth and obtain the test result. The method provided in the invention presets water volume of test points, and tests a plurality of points continuously by decompression method in water volume test of the same layer segment or at each test point. Test all layer segments at one time to obtain delamination instruction curve; calculate and select appropriate water nozzles according to different empirical formula of nozzle exchange method and water exchange method, and verify if qualified on site. The method of the invention in practical operation makes whole casting and measure process from complex and long periodic time to simple and short periodic time, which saves human labor and material resources, improves separate zone waterflooding qualify rate, and avoids artificial counterfeit.
Owner:中国石油大港油田第五采油厂

Web quality of service distributed measurement system and method

InactiveCN103209102AStrong real-timeThe estimation process is fully transparentData switching networksWeb serviceNetworked system
Provided are a Web service Quality of Service (QoS) distributed measurement system and method. The Web service quality distributed measurement system is provided with a center node and a plurality of measurement nodes. The Web service QoS distributed measurement method is characterized in that network coordinates of user hosts, the plurality of measurement nodes and Web service deployment hosts, namely service deployment nodes, in an abstract network coordinate system are respectively calculated by aid of the network positioning technology according to a Web service QoS estimation model, and similarity of the user hosts and the measurement nodes is calculated so as to estimate QoS attribute values capable of being obtained by users. The Web service QoS distributed measurement method and system can fast and accurately estimate Web service QoS capable of being obtained by the user sides in different regions and / or different network environments, and the Web service QoS includes response time and reliability. The Web service QoS distributed measurement method has strong instantaneity and does not depend on historical QoS data of the users, dost not add additional load to the users, and is transparent in the estimation process. The Web service QoS distributed measurement method and system are characterized in that the network system is mapped into the multi-dimensional coordinate system, response time and reliability of Web service and capable of being obtained by the user sides can be estimated by combining similarity of the user hosts and the measurement nodes, and true and credible data can be obtained.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Constant-temperature patch clamp cell recording system

The invention discloses a constant-temperature patch clamp cell recording system which comprises a cell operating table, a cell recording tank, a perfusion device, a constant-temperature dish, a constant-temperature column and a constant-temperature machine, wherein the cell recording tank is arranged on the cell operating table; the perfusion device is connected to the cell recording tank; the constant-temperature dish is matched with the cell recording tank; the constant-temperature column is at least arranged on the perfusion device; the constant-temperature machine is connected with the constant-temperature column and the constant-temperature dish. The constant-temperature patch clamp cell recording system disclosed by the invention has the benefits that as the constant-temperature column is arranged outside a perfusion tube, when a perfusate in the perfusion tube flows through a water holding chamber of the constant-temperature column, the heat is conducted through warm water in the water holding chamber, so that the perfusate in the perfusion tube meets the experiment temperature requirements; in the experiment process, by matching of a water bah of the constant-temperature dish and the cell recording tank, the temperature stabilities of a cell and a reagent in the experiment process are ensured in a water bath manner of circulating constant-temperature water in the cellexperiment process, ohmic heating is not required, and shapes of experimental square waves cannot be interfered, so that experimental data are more realistic, more accurate and more reliable.
Owner:THE FIRST AFFILIATED HOSPITAL OF XIAMEN UNIV +1

System and method for detecting phase centers of GPS (global positioning system) antennas by aid of continuous rotation processes

The invention discloses a system for detecting phase centers of GPS (global positioning system) antennas by the aid of continuous rotation processes. The system comprises a base, a rotary table and a control unit. The rotary table comprises a support rod, a cantilever support plate, a rotary support bearing, a driven gear and a GPS antenna connecting rod; a stepper motor is fixed to a cantilever end of the cantilever support plate, a driving gear which meshes with the driven gear is arranged on an output shaft of the stepper motor, the stepper motor is connected with an encoder, and the encoder is used for feeding back rotation angles of the stepper motor; the control unit comprises a man-machine interaction module, a GPS time service module and a motor driver which are connected with a single chip microcomputer controller. The single chip microcomputer controller is connected with the encoder and is used for receiving rotation angle information of the motor, and the rotation angle information of the motor is fed by the encoder, so that closed-loop control can be carried out on the GPS antenna connecting rod. The system has the advantages that pointing directions of the antennas can be accurately changed by the system, and accordingly influence of observation errors such as multi-path effects can be effectively reduced; detection results are accurate, data are real, and the system is high in practicality.
Owner:THE FIRST MONITORING CENT OF CHINA EARTHQUAKE ADMINISTATION

Three-dimensional electromagnetic field translating scanning optical measurement system and electromagnetic field determination method

The invention discloses a three-dimensional electromagnetic field translating scanning optical measurement system and an electromagnetic field determination method, and belongs to the technical field of space electromagnetic field detection. The three-dimensional electromagnetic field translating scanning optical measurement system comprises a three-dimensional optical matrix channel magnetic field mobile scanning measurement system, a three-dimensional optical single-channel magnetic field mobile scanning measurement system and a three-dimensional optical matrix channel electric field mobile scanning measurement system. The method for determining an electromagnetic field through the three-dimensional electromagnetic field translating scanning optical measurement system comprises a method for determining a magnetic field through the three-dimensional optical matrix channel magnetic field mobile scanning measurement system and a method for determining an electric field through the three-dimensional optical matrix channel electric field mobile scanning measurement system. By using a three-dimensional magneto-optical effect and a three-dimensional electro-optical effect, the space magnetic field and the electric field can be simultaneously measured in three dimensions, three-dimensional reappearance of the space electromagnetic field is realized, and the magnetic field and the electric field of a micro point can be measured.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Healing and leakage blocking performance evaluation method of self-healing gel leakage blocking material

The invention provides a healing and leakage blocking performance evaluation method of a self-healing gel leakage blocking material. The healing performance and the leakage blocking performance of theself-healing gel leakage blocking material are evaluated by testing the pressure bearing strength and the tensile strength of the self-healing gel leakage blocking material before and after healing.Then, the healing rate is accurately obtained through calculation; and finally, the healing and leakage blocking performance of the self-healing gel leakage blocking material are comprehensively evaluated through a self-healing performance evaluation index. The evaluation method is simple to operate and convenient to calculate, the test evaluation can be performed in a laboratory, an operator doesnot need to perform a large amount of complex work, the method has the advantages of reliable principle, accurate data, reality, effectiveness and wide applicability, the healing and the leakage blocking conditions of the self-healing gel leakage blocking material can be truly reflected, the evaluation of the leakage blocking and healing performance of the self-healing gel leakage blocking material can be achieved, and theoretical support is provided for subsequent research and development of the self-healing gel leakage blocking material.
Owner:PETROCHINA CO LTD +1

Test device applicable to ultralow temperature reinforcing steel bar tensile test

The invention discloses a test device applicable to ultralow temperature reinforcing steel bar tensile test. The test device comprises a low temperature test box (1), a reinforcing steel bar test sample (2) and a clamp, wherein the clamp comprises an upper threaded clamp (3) and a lower threaded clamp (4), and the upper threaded clamp (3) and the lower threaded clamp (4) are respectively connected to one end of the reinforcing steel bar test sample (2) and fixed on the low temperature test box (1); one end, matched with the reinforcing steel bar test sample (2), of each of the upper threaded clamp (3) and the lower threaded clamp (4) is of a hollow bushing structure. According to the test device, the yield and the extreme strength of an upsetting part of the reinforcing steel bar test sample can be improved through the cold upsetting process, so that the real strength of a connector can be higher than the strength of a reinforcing steel bar test sample base material; meanwhile, the reinforcing steel bar test sample is clamped by the upper threaded clamp and the lower threaded clamp in a threading manner; moreover, as the test force is increased, the clamping force is also increased, so that the authenticity and reliability of data of the low temperature tensile test of the measured reinforcing steel bar test sample can be guaranteed.
Owner:MAGANG (GROUP) HOLDING CO LTD +1

Built-in active monitoring cultural relic capsule cartridge

The invention provides a built-in active monitoring cultural relic capsule cartridge which comprises a box body, a box cover and a monitoring system. The box cover is arranged on the box body. The monitoring system comprises an MCU, a power module, a communication module, a humidity sensor, a temperature sensor, an acceleration sensor and a box cover opening inductor. The signal input end of the MCU is connected with the humidity sensor, the temperature sensor, the acceleration sensor and the box cover opening inductor. The signal output end of the MCU is connected with the communication module, and the MCU, the communication module, the humidity sensor, the temperature sensor, the acceleration sensor and the box cover opening inductor are all located in the box body. The sensors are arranged in the box body, and therefore multiple parameters of the real environment in the box body can be monitored in real time, true and reliable data are provided for cultural relic preservation, and the opening and closing states of the box cover are monitored through the box cover opening inductor. Monitoring information is transmitted to a management terminal through the communication module, and timeliness, precision, high efficiency and low cost of cultural relic preservation are achieved.
Owner:CHONGQING SHENGGUANGDIAN ZHILIAN ELECTRONICS CO LTD

Safety injection pump operation life prediction method and system

The invention discloses a safety injection pump operation life prediction method and system. The method comprises the steps that the flow characteristic quantity, the power characteristic quantity andthe vibration characteristic quantity which correspond to the discharge pressure of a low-pressure safety injection pump during duration of a test are recorded in real time; then, characteristic quantity data are processed, a periodic function, a trend function and an irregular fluctuation function are extracted based on a function curve of the characteristic quantity and time, and a fault degreemodel (degeneration characteristic fault probability prediction model) is obtained according to the non-fault coverage of the characteristic quantity; then, the bayesian method considering only the time sequence is utilized, the fault probability of the low-pressure safety injection pump in the non-confidence interval at a certain moment is obtained, that is, real-time collected data of a durability test are substituted into the fault degree model, the fault probability of the low-pressure safety injection pump in the set confidence interval at any moment is calculated through the bayesian method of time sequence, and when the fault probability reaches the preset limit value, the durability test is stopped.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
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