40 results about "Measurement testing" patented technology

The invention discloses an accurate measurement device and method based on water tunnel flow field resistance, and relates to the technical field of flow field medium measurement. Comprising a working section and a test board. The working section is internally provided with a testing assembly for testing the flow field medium resistance of the testing plate; the test assembly comprises a fixed plate; sensor fixing seats are symmetrically and fixedly connected to the fixing plate, force sensors are fixedly connected to the sensor fixing seats, and the force sensors are used for detecting the force values of a flow field medium in the working section acting on the X-axis direction and the Y-axis direction of the testing plate; the force sensors are fixedly connected with connecting plates. An adjusting assembly used for adjusting the height of the testing plate is arranged between the testing plate and the connecting plates. The force measuring directions of the Y-axis directions of the adjacent force sensors are opposite, and the force value output by the S-shaped force sensor is the resultant force of the X-axis direction and the Y-axis direction; the horizontal resistance of a flow field medium borne by the test plate can be accurately measured, meanwhile, the pressure difference interference force in the vertical direction is effectively counteracted, and the resistance test precision and stability are improved.

A measuring apparatus for electrodes and / or separator membranes for secondary batteries according to one embodiment of the present invention includes a container with a main body capable of housing a test piece and an electrolyte, and a measuring unit for measuring the physical properties of the test piece, wherein the test piece is at least one of an electrode and a separator membrane for secondary batteries, and the measurement is performed with the test piece impregnated in the electrolyte.

The invention discloses an error calculation method based on a pulse sequence with a time scale, and belongs to the technical field of electric power measurement testing. The standard time-frequency signal, a high-frequency standard pulse output by the standard electric energy meter and a detected pulse output by the detected electric energy meter are connected to an acquisition processor; the acquisition processor detects a jump edge of the detected pulse in real time based on a clock provided by the standard time frequency signal, and records moments corresponding to a rising edge and a falling edge of the detected pulse; counting the standard pulse in real time, and recording the current count value of the standard pulse at the corresponding moment; combining the moment information with the count value to form an original sampling sequence with a time mark; the calculation processor reads the stored original sampling sequence with the time scale, and calculates the power value, the error value, the waveform characteristic and the jitter index of the detected electric energy meter according to the edge moment of the detected pulse and the corresponding standard pulse count value; and according to the error distribution condition, the stable state of the verification system is monitored in real time, and an alarm is dynamically triggered.

The invention provides an oil and gas well segmented testing device and method, and relates to the technical field of oil and gas well testing, the device comprises a sleeve, a fracturing bridge plug and a testing short section device, and the testing short section device is connected to the lower portion of the fracturing bridge plug and goes down to a preset position in a well along with the bridge plug. The test short section device is of a cage type structure, a battery, a timer, a holding claw, a pull rod, a motor pulling cylinder and a plugging device are arranged in the test short section device, the timer is used for controlling the gear motor pulling cylinder to act, the pull rod pulls the holding claw to rotate, the plugging device is released, a bridge plug center hole is plugged, and a flowing channel is closed; the testing method comprises the steps of collecting drainage and production data of adjacent wells to determine plugging time; designing a test short section and setting the starting time of a timer; the device is connected with a bridge plug to descend into a well, and staged fracturing is completed; sequentially starting timers after oil-gas well liquid drainage production, blocking section by section, recording wellhead yield data, and calculating the productivity of each section; according to the method, measurement is directly performed through physical isolation, the test result is visual and reliable, the anti-interference capability is high, the cost is low, and the method is suitable for output monitoring of low-permeability and unconventional reservoir staged fractured wells.

Health management device that features: an acquisition unit configured to obtain biological information from a measurement test subject; a unit of determination configured to determine whether the acquired biological information reaches a target value, defined in relation to the biological information, within a specified time period; and a calculation unit configured to calculate an incentive value for the measurement test subject based on a determination result obtained from the determination unit and a number of biological information objects, wherein the acquisition unit also obtains health information indicating the health status of the measurement test subject, the unit of determination determines whether the obtained biological information meets a specified condition or not, which is based on the obtained health information, wherein the specified condition includes a time of day at which blood pressure tends to be high, and The calculation unit further calculates the incentive value for the measurement test subject based on a number of biological information objects for which the determination unit has determined that they meet the condition.

The invention discloses an object surface radiation heat dissipation performance testing device which comprises a shell, a testing area is arranged on the inner wall of the shell, a heating piece is arranged in the testing area, and a to-be-tested sample can be placed at the end of the heating piece; the testing area can simulate the working environment of different samples to be tested through the temperature change of the heating piece; a first temperature sensing piece is arranged in the testing area, and the first temperature sensing piece is used for measuring the temperature value in the testing area; a second temperature sensing piece is arranged on the surface of the to-be-tested sample, and the second temperature sensing piece is used for testing the temperature of the surface of the to-be-tested sample, so that the heat dissipation performance of the metal working at high temperature is represented; by arranging the heating plate capable of accurately controlling the temperature and the built-in first temperature sensing piece, active and accurate simulation of the working temperature of a metal or coating material sample is realized, and the limitation that an existing testing device is only suitable for environment temperature or low-temperature scenes is broken through.

The invention relates to a magnetic flux modulation type high-intensity magnetic field measuring device and method based on self-reference, and relates to the field of metering and testing instruments. Comprising the steps that a motor drives a transmission shaft to control an induction coil to rotate in a strong magnet, two paths of homologous and synchronous induced electromotive force E1 are generated, the induced electromotive force E2 is output through a twisted pair in a conductive slip ring and input into a first signal conditioning module and a second signal conditioning module respectively, and the conditioned induced electromotive force E1 is input into a precise voltage division network for voltage division; the induced electromotive force after voltage division is input into a lock-in amplifier reading system through a first voltage follower to serve as a signal to be measured; the conditioned induced electromotive force E2 is synchronously input into a waveform shaping circuit to be converted into a square wave signal with a fixed amplitude value, the square wave signal after conversion is input into a phase-locked amplifier reading system through a second voltage follower to serve as a reference signal, and the phase-locked amplifier reading system carries out data reading on the induced electromotive force. According to the invention, the problem that the high-intensity magnetic field is difficult to accurately measure and trace is solved.

The invention relates to the technical field of measurement and testing, and discloses a pulse ultrasonic sensing device and method for fluid anomaly detection, and the method comprises the steps: a programmable pulse generator in an application-specific integrated circuit generates a short pulse sequence with preset parameters, and the short pulse sequence is amplified by a power amplifier and then is transmitted to a fluid medium by an ultrasonic transducer. In a transmitting gap, the transmitting-receiving switching circuit switches the system to a receiving mode, and echo signals are conditioned through the low-noise preamplifier, the programmable band-pass filter and the automatic gain control circuit in sequence. The conditioned signals are digitalized through an analog-to-digital converter array, pulse shaping, time sequence alignment, signal accumulation and digital filtering operation are carried out in a digital processing module, then signal envelopes are extracted by an envelope detector, feature vectors are calculated, and finally abnormity judgment is carried out by a judgment logic unit. According to the invention, rapid ultrasonic detection and accurate judgment of abnormal signals are effectively realized.

The present application provides a kind of pipeline vibration test section load non-contact high-speed test method, belong to measurement testing field, including the following steps: first step: test system setup;Second step: test image acquisition;Third step: deformation field calculation;Fourth step: reflection transformation calculation;Fifth step: pipeline full circumferential surface morphology reconstruction;Sixth step: deformation field measurement;From the three-dimensional point cloud of initial state in the three-dimensional point cloud of deformation state, obtain the three-dimensional displacement field of each deformation state, further calculate three-dimensional displacement field, obtain the required strain field;Seventh step: pipeline section stiffness coefficient calibration;Eighth step: based on single system multi-view pipeline full circumferential deformation test method, the deformation information under pipeline section load is collected, and section load data is calculated according to section stiffness coefficient data and strain data, complete test.The present application solves the problem of low test reliability and measurement accuracy caused by the quality of sensor and wire itself in the prior art.

Various embodiments described herein relate to a test chamber device an associated methods and non-transitory machine-readable media including a test chamber, a system builder that is configured to build and apply an equipment load to the test chamber; a load maker that is configured to build and apply a predefined load to the test chamber; and a tester which measures action of the equipment load and the predefined load within the test chamber, producing a test state.

The measurement apparatus includes a measurement test selection unit that selects a test item to be measured, a measurement condition analysis unit that analyzes a measurement condition of the selected test item, a wiring condition selection unit that inputs a frequency band to be measured and an antenna terminal of a mobile terminal to be used in the frequency band as a wiring condition for the selected test item, a recommended wiring calculation unit that calculates a wiring method that satisfies the wiring condition and the measurement condition and minimizes the number of times of reconnection to the cable between the port of the measurement device and the antenna terminal of the mobile terminal, and a wiring method display unit that displays the wiring method calculated by the recommended wiring calculation unit as a wiring diagram.

This invention provides a method for measuring and evaluating stress concentration in a cage-type elastic support, belonging to the field of measurement and testing technology. The method includes the following steps: First, determining the stiffness of the elastic support through calibration tests; second, calculating the stress distribution formula of the cage bars based on their structural dimensions; third, obtaining the analytical solution for stress concentration using the multivariate function extremum method; fourth, obtaining the theoretical solution for the strain gauge measurement range using the area integral method; and fifth, measuring, evaluating, and correcting the stress concentration to obtain the measured value of the stress concentration in the cage bars. This invention solves the problem of inaccurate measurement location and data in existing technologies when measuring stress concentration at the root of the cage bars, providing accurate data support for the structural strength design and fatigue life estimation of elastic supports.

An apparatus for measuring electrical characteristics of a test system includes a base board and an interface. The base board is arranged to host circuit boards. Each circuit board includes a measurement module. The base board includes an interface configured to connect with the test system. The interface is arranged to receive a current, on a current channel, from the test system, and voltages, on respective voltage channels, from the test system. The circuit boards include one or more voltage testing modules. Each voltage testing module includes voltage measurement units. Each voltage measurement unit is configured to measure a voltage on a respective voltage channel. The circuit boards include a current testing module configured to measure a current on the current channel. The interface is arranged to output voltage information from the one or more voltage testing modules and current information from the current testing module.

The invention provides a helicopter damage probability calculation method, relates to the technical field of physical measurement and testing, and fundamentally solves the problem that the damage probability of a helicopter cannot be accurately measured under the simulation of continuous impact in the prior art by constructing a multi-dimensional and self-feedback calculation system with uncertainty self-cognition ability. The prediction misalignment problem caused by neglecting the mode dependence of damage accumulation and the internal uncertainty of the model is solved; according to the method, the accuracy of structure chain type failure risk prediction can be greatly improved, accurate evaluation on threat-dependent structure vulnerability is realized, and the safety and reliability of a simulation system in a complex and changeable environment are enhanced.

Providing a test gas sensor device for measuring test gases. [Solution] A test gas sensor device (12) for detecting a test gas leak in a test gas leak detection using the spray principle, comprising: a measuring sensor (14) for measuring the test gas concentration at a measurement position (46); an electronic signal processing device (18) configured to compare at least one measurement value recorded by the measuring sensor (14) with a reference value and generate an electronic control signal when the measurement signal exceeds a threshold value which depends on the reference value; and an indicator device (20) connected to the signal processing device (18), which is configured to output an optical and / or acoustic indicator signal when it receives a control signal as soon as the measurement signal exceeds a threshold value.

The present invention proposes a method for controlling a process with at least pre- and post-measuring stations, comprising the steps of: collecting pre-measurement data prior to the process on a workpiece at a pre-measuring station, which is a first station; collecting process data after processing the workpiece at a process station, which is a second station; and collecting post-measurement data as test values ​​at a post-measurement station, which is a fourth station; storing the data in a database in accordance with the type of workpiece; defining the output as “Δ”, where “Δ = post-measurement test value - target adjustment value”, and defining the inputs as data collected from the pre-measurement station and the process station; AI modeling of “Δ” using machine learning algorithms with a software program that uses the input data; and adjusting the target adjustment value of the process station.

This invention discloses a method for measuring the coupling coefficient based on an identical waveguide array, belonging to the field of measurement and testing of optical waveguide properties. The method includes: constructing a measurement system for the coupling coefficient of the waveguide array; testing the evolution results of the waveguide array; and recalculating the coupling coefficient through simulation experiments. Based on the consistency between the evolution process of photons in the waveguide array and continuous-time quantum walks, this invention uses an identical single-mode waveguide array, relies on the physical model of continuous-time quantum walks, and measures the output probability amplitude at different evolution lengths. The simulation and test results are evaluated using the least squares method to finally obtain the waveguide coupling coefficient. This method has low requirements for experimental equipment, low workload, and requires less sample width; it can accurately predict and analyze the evolution of light in the waveguide array.

The present application relates to a kind of by floating slurry layer thickness fast evaluation new pouring concrete segregation degree method, belong to concrete quality evaluation field, comprising: the close packing density of coarse aggregate is calculated;The total mass of coarse aggregate in single test piece is calculated;Limit segregation packing volume and limit segregation coarse aggregate height are calculated;The total thickness of concrete in test area is measured, and the thickness of limit segregation state mortar layer is calculated;Limit segregation ratio is defined;Select multiple point positions in test area to carry out actual measurement segregation ratio calculation, take average value to obtain final segregation index I;I is graded, and divided into two grades of qualified and unqualified grade.The present application breaks through the limitation of traditional qualitative evaluation, based on the close packing characteristics of coarse aggregate and the characteristics of test piece component, through multi-step logical deduction, the segregation degree is converted into the segregation index that can be accurately calculated, the subjectivity and ambiguity of naked eye observation are eliminated, the quantitative characterization of segregation state is realized, and the evaluation result is more objective and scientific.

The invention provides a knife edge diaphragm area testing device and method based on a confocal microscope, and belongs to the technical field of measurement testing. During measurement, the scribed line surface of the reticle is attached to the measured surface of the knife edge diaphragm, and a plurality of local images with overlapped areas are collected along the edge of the diaphragm through a confocal microscope; accurately splicing the images into a complete edge image by adopting an automatic splicing algorithm based on sliding window secondary optimization; pixel scale calibration is carried out by using the scale line spacing traced to the geometric quantity standard on the reticle; finally, the accurate area is calculated by counting the number of pixels in the light-passing area. According to the invention, all the edges are directly measured and traced to the length reference, so that approximate errors and accumulative errors of a traditional diameter integration method are effectively avoided, and high-precision traceable measurement of the knife edge diaphragm area is realized.

This invention provides a top structure for a high-performance measurement tester, including a load board with two sets of socket assemblies symmetrically arranged on it. Each set of socket assemblies has multiple signal connectors arranged around its perimeter. Each socket assembly includes multiple chip sockets. Below the load board, corresponding to the positions of the socket assemblies, a socket support plate, a rectifier plate, and an airtight box are arranged sequentially from top to bottom. The bottom of the airtight box has a through-hole. The bottom surface inside the airtight box has evenly distributed air intake channels, which communicate with the air intake. The rectifier plate has multiple through-holes for equalizing airflow. These air intake holes are located above and communicate with the air intake channels. The socket support plate has multiple first vent holes, which communicate with the space above the rectifier plate. The load board has multiple second vent holes, and each chip socket in the socket assembly has a third vent hole. When the socket assembly is installed on the load board, the second and third vent holes are connected in a one-to-one correspondence.

The invention discloses a substation point location information checking method and system based on AI identification fusion, and relates to the technical field of artificial intelligence. The method comprises the following steps: after hardware connection check in substation point location information check is completed, selecting a first point location to carry out telemetering test and remote control test to obtain first telemetering precision and first remote control precision; according to the moving window, selecting a point location electrically connected with the first point location, performing iterative telemetering test and remote control test, and constructing a telemetering precision matrix and a remote control precision matrix; calling historical point location check data of point locations of the same family, and performing precision check on the telemetering precision matrix and the remote control precision matrix to obtain a test credibility matrix; according to the test credibility matrix, the telemetering precision matrix and the remote control precision matrix, AI fusion identification is carried out, and a point location checking quality parameter matrix is obtained and serves as a substation point location information checking result. According to the invention, the precision and efficiency of substation point location information checking are effectively improved.

A device for measuring a thermal conductivity of a test object includes a first testing body, which has a first main surface and an opposite first end surface, a second testing body, which has a second main surface and an opposite second end surface, a heat source, which is disposed on the first main surface of the first testing body, at least one first temperature sensor for measuring a first temperature of the first testing body, and at least one second temperature sensor for measuring a second temperature of the second testing body. The testing bodies are arranged such that the test object can be positioned between the end surfaces of the testing bodies, and the first testing body and the second testing body are made of silicon.

The invention belongs to the field of vehicle body structure design, and discloses a vehicle body structure reinforcement rigidity test bench, test system and test method.The vehicle body structure reinforcement rigidity test bench comprises a rigid bench, a load applying device and a displacement measuring device, the load applying device and the displacement measuring device are both arranged on the rigid bench, and the load applying device is used for applying a load to a test piece; and the displacement measuring device is used for measuring a displacement value generated by the test piece under the action of the applied load. According to the invention, a test object is converted from a whole body in white into a combination of a single reinforcement and a substrate through a simple vehicle body structure reinforcement rigidity test bench and a quantitative index, the index of rigidity contribution degree is introduced, the rigidity contribution degree of the reinforcement can be rapidly and accurately evaluated through comparison test and calculation, the method is visual and easy to implement, and the method is suitable for large-scale popularization and application. A key basis is provided for early-stage design optimization and quality control, the rigidity improvement effect of the reinforcement part on the local structure of the vehicle body is accurately quantified, meanwhile, the development period is greatly shortened, and the research and development cost is reduced.

The utility model discloses an automobile dash panel drilling depth accurate testing fixture in the technical field of industrial measurement testing fixtures, which comprises a connecting plate, an adjusting piece, a measuring scale and a holding rod, the adjusting piece is positioned on the inner side of the connecting plate, the measuring scale is positioned on the inner side of the adjusting piece, and the holding rod is positioned on the inner side of the adjusting piece. The holding rods are fixedly connected to the two sides of the outer side wall of the adjusting piece, sliding rails are fixedly connected to the four corners of the bottom of the connecting plate, sliding pieces are slidably connected to the connecting ends of the sliding rails, connecting rods are fixedly connected to the inner ends of the sliding pieces, and clamping pieces are fixedly connected to the tail ends of the connecting rods. A second connecting groove is formed in the periphery of the outer side wall of the adjusting piece, measuring scales are arranged on the upper side and the lower side of the outer side wall of the measuring scale, and an external thread is formed in the middle of the outer side wall of the measuring scale, and the accurate testing fixture for the drilling depth of the automobile dash panel is reasonable in structural design, more accurate in measuring result, high in applicability and convenient to adjust.

The invention provides a testing system and method for a hydrogen sulfide sensor, and belongs to the technical field of measurement and testing. The method comprises a sensor type identification stage: determining the type of a target sensor based on the measurement principle and the material attribute of the target sensor; a test mode determination stage: based on the identified target sensor type, determining a test mode of the target sensor, the test mode at least comprising a reference test mode and a compensation test mode; a test execution stage: executing a performance test on the target sensor based on the determined test mode; a test result analysis stage: analyzing the performance of the target sensor based on the test result; and a man-machine interaction feedback stage: receiving man-machine interaction feedback data, determining whether to switch the test mode based on the feedback data, if so, returning to the test mode determination stage and reselecting the test mode, and otherwise, ending the test. The technical scheme provided by the invention is suitable for the performance test of various types of hydrogen sulfide sensors, and the test error can be reduced.

The invention provides a wafer epitaxial film thickness measurement method and system based on track self-adaption, and belongs to the technical field of measurement testing and semiconductor manufacturing. The measurement method comprises a wafer feeding and preliminary transferring step, a wafer positioning and correction compensation step, a measurement path planning step, a film thickness data acquisition and processing step, a data comparison and trend report generation step and an abnormal alarm triggering step. The measuring system comprises a feeding and transferring unit, a positioning and compensating unit, a measuring path planning unit, a film thickness data collecting and processing unit, a data comparing and trend report generating unit and an abnormal alarm triggering unit. The positioning and compensating unit comprises a correcting mechanism and a compensating mechanism. According to the invention, the precision and efficiency of wafer epitaxial film thickness measurement are improved through track adaptive planning and an edge enhancement algorithm; and in combination with cloud collaborative analysis, real-time abnormal alarm and trend prediction are realized, and the yield and the intelligent level of semiconductor manufacturing can be improved.

The present application relates to the field of measurement test technology, especially to a grouting material water resistance test evaluation method, system and data carrier. The grouting material water resistance test evaluation method first obtains the post-period water resistance strength index by comparing the strength of standard curing and water curing test blocks; then obtains the water absorption consolidation strength index by simulating the water loss working condition of slurry through negative pressure suction filtration and setting the effective consolidation judgment as the premise of the veto condition; then obtains the underwater dispersion retention index by simulating the underwater dispersion of slurry and setting the retention rate threshold as the veto condition; finally, according to the target engineering environment, the three indexes are assigned weight coefficients and weighted summation, and the comprehensive water resistance index is obtained. The present application overcomes the defects of one-sidedness and engineering reality of the prior art, can comprehensively and accurately predict the actual situation of grouting material in complex water environment, and provides a scientific basis for engineering selection.

Embodiments of the present disclosure relate to low power wake-up signal (LP-WUS) radio resource management (RRM) measurement In an aspect, a first apparatus may receive, from a second apparatus, an indication of a first test loop mode for a test of a LP-WUS RRM measurement. The first test loop mode may support an RRC connected mode, an RRC idle mode, and an RRC inactive mode. The first apparatus may transmit, to the second apparatus, a measurement report comprising results of multiple measurements.

An object of a system according to an embodiment is to automatically set a task corresponding to a specific skill required by a company and efficiently measure a AI skill.SOLUTION: A system according to an embodiment includes a task setting unit, a data generation unit, and a skill measurement unit. The task setting unit automatically sets a task according to a specific skill required by a company. The data generation unit automatically generates data corresponding to the task set by the task setting unit. The skill measuring unit measures the AI skill of the examinee using the task set by the task setting unit.SELECTED DRAWING: Figure 1

The invention relates to the technical field of profound hypothermia measurement, and provides a low-temperature fluid flow reference device and method based on mass method and volume method mixed measurement, and the device comprises a fluid supply module which is used for providing low-temperature fluid; an inlet of the testing pipeline is connected with the fluid supply module, and a detected flowmeter is arranged on the testing pipeline; the low-temperature and constant-temperature module is used for providing a low-temperature and constant-temperature testing environment for the detected flowmeter; the standard receiving tank is communicated with the outlet of the test pipeline; the liquid level meter is arranged in the standard receiving tank, and the liquid level meter is used for measuring the liquid level height change delta h in the test time period delta t; and the weighing unit is arranged at the bottom of the standard receiving tank, and the weighing unit is used for measuring the fluid mass increment delta m of the standard receiving tank in the test time period delta t. According to the invention, synchronous and independent measurement of mass flow and volume flow is realized in a single standard container, real-time cross validation of data is realized, each fault of the device is found in time, and the reliability and confidence of a measurement result are improved.