50results about How to "The test results are simple and clear" patented technology

The invention discloses a method and a device for determining the water content of a fresh concrete mixture based on dielectric constant. According to the method, a relative dielectric constant of concrete is tested based on the propagation rate attenuation of an electromagnetic wave in the fresh concrete mixture and the reflection principle of the electromagnetic wave on a metal plate of a testing device, and then, in accordance with the principle that the relative dielectric constant is relatively sensitive to water, the propagation velocity of the electromagnetic wave in the fresh concretemixture is enabled to vary so as to lead to the variation of the relative dielectric constant, thus the water content of the fresh concrete mixture can be measured. The method has the characteristicsof no contact between an electromagnetic transmitting and receiving device and a tested object, large testing area and wide water ratio testing range. The method can be used for overcoming the defectthat the traditional method is insufficient in concrete adaptability, largely impacted by environment, inaccurate and unreliable, has greatly increased precision and speed in testing the relative dielectric constant of concrete, and has the characteristics of great simplicity in manufacturing testing device, good simplicity and convenience, accurate test results and outstanding operation easiness.

The invention discloses a vision and touch tester and a vision and touch sensitivity testing method. In the vision and touch tester, a parameter testing module of a parameter setting and signal generating module is respectively connected with the input end of a stimulating signal receiving module; the output end of the stimulating signal receiving module is connected with the input end of a signal control module; the output end of the signal control module is connected with the input end of a multi-channel multi-path signal generation module; the output end of the multi-channel multi-path signal generation module is respectively connected with a vision signal source and a touch signal source; a 'yes' button and a 'no' button are respectively connected with the input end of a feedback signal acquisition module; the output end of the feedback signal acquisition module is connected with the input end of a feedback signal sending module; and the output end of the feedback signal sending module is connected with a data processing module. Besides conventional vision, touch and double-channel combined tests, the invention also can realize the researches of touch alarms, sports touches, touch memories, vision and touch combined motion perception phenomena, and the like.

The invention relates to a small electric unmanned aerial vehicle motor testing device and belongs to testing equipment. A power supply voltage controller, a tension tester, a frame, a temperature displayer, an integrated processing box and a computer are assembled on a rack, a motor which is to be tested and provided with blades, a non-contact velometer and an infrared temperature measurement sensor are assembled on the frame, a tension test rod coaxially connected with the motor to be tested is arranged on the frame, an optical reflector plate matched with the non-contact velometer is attached to the outer side of the motor to be tested, a tension and pressure sensor is assembled on the tension test rod, the integrated processing box is respectively connected with the computer, the tension tester, the power supply voltage controller and the temperature displayer through wires, the temperature displayer is connected with the infrared temperature measurement sensor, the motor to be tested is connected with the power supply voltage controller, and the tension and pressure sensor is connected with the tension tester. The small electric unmanned aerial vehicle motor testing device is reliable in performance, high in automation degree and accurate in detection result and provides technological support for scientific selection of small unmanned aerial vehicle motors.

The invention discloses a method for testing the shielding effectiveness of a textile material under a complex electromagnetic environment. The method comprises the following steps: (1) establishing a hollow metal cavity, wherein the hollow metal cavity is put in a reverberation room, and a window and a first waveguide hole are formed in the surface of the hollow metal cavity; a field intensity meter and a first stirrer are arranged in the hollow metal cavity; (2) constructing a reverberation room work environment; (3) enabling the to-be-tested textile material to closely cover the window, enabling the stirrer, recording electric field intensities acquired by the field intensity meter when the stirrer does step-by-step rotation each time, and computing an average electric field intensity value as E1; (4) removing the to-be-tested textile material on the window, keeping the field intensity meter in the step 1 unchanged in position, keeping all parameters in the step 3 constant, and computing an average electric field intensity value as E2; (5) computing the shielding effectiveness SE of the to-be-tested textile material by adopting a formula SE=20*log(E1/E2) (1). The method disclosed by the invention has the advantages that the operation is simple and fast; a testing result is accurate and reliable, and not influenced by the size of the window.

The present invention relates to the technical field of electronic equipment, and discloses a method and a device for detecting the eyesight. According to the technical scheme of the invention, the method for detecting the eyesight is applied to a mobile terminal. The method comprises the steps of displaying a plurality of sighting marks for multiple times, wherein the feedback information of a testee aiming at a displayed sighting mark is acquired after the display of sighting marks each time, and a test result corresponding to the displayed sighting mark is determined according to the feedback information; and determining the eyesight detection result of the testee according to a test result corresponding to each sighting mark. According to the embodiments of the invention, sighting marks are displayed on the mobile terminal. Meanwhile, the eyesight detection result of the testee is determined according to the test result determined based on the feedback information of the testee. Therefore, a user can autonomously and conveniently detect the eyesight itself without the adoption of any specific detection environment in a specific test environment or the help of professional staffs or other people, and accurate detection results are obtained. The vision detecting process is significantly simplified and the intelligent level of vision detection is improved. The user experience is improved.

The invention discloses a method to detect the parts by the firmware of the intelligent device. It sets the detecting program module in the intelligent device and detects the correspondent transferring interface in the POST process. The method includes: the intelligent runs the POST process after starting, when it runs to the location of the transferring interface, the POST process is interrupted and starts the transferring interface to detect the device parts and outputs the detecting results. When the detect finishes, the POST process is run continuously. The invention can detect the parts deeply and widely in the POST process of the intelligent device.

An embodiment of the invention discloses a test circuit for an infrared receiving head. The test circuit comprises an infrared transmitting module, an infrared receiving module and a control module, wherein the infrared transmitting module is used for transmitting a plurality of infrared transmission signals with different intensities in a time sharing manner; the infrared receiving module is configured to connect the infrared receiving head to be tested, and the infrared receiving head to be tested receives the plurality of infrared transmission signals with different intensities to generatedifferent pulse signals; and the control module is configured to control the infrared transmitting module to operate and receive the pulse signals, and the control module detects the widths of the pulse signals and displays the widths. The test circuit for the infrared receiving head disclosed by the invention is simple and convenient.

The invention provides a gas wetability test method. The method comprises the following steps: hanging rock to be measured underneath a weighing device, immersing the rock to be measured into a liquid, recording water absorption time and quality of the rock to be measured after water absorption according to preset time interval, obtaining water absorption speed of the rock to be measured according to the quality of the rock to be measured after water absorption and the water absorption time, taking the 100% water saturated rock to be measured after water absorption out of the liquid and putting the rock onto the weighing device, recording volatilization time and quality of the rock to be measured after volatilization according to preset time interval, obtaining volatilization speed of the rock to be measured according to the quality of the rock to be measured after volatilization and the volatilization time, and obtaining gas wetability of the rock to be measured according to the water absorption speed of the rock to be measured and the volatilization speed. The method provided by the invention is simple and feasible, and requirements on experimental samples are not high. The method is easy to operate, and the obtained test result is simple and visual.

The invention discloses an early warning system in a software development process. The system comprises a database, a GPS positioning unit, a client information input unit, a client demand input unit, a software test unit, a mouse track scanning unit, a modeling unit, a button click recognition unit, an anomaly early warning unit, an anomaly processing unit, a test result output unit, a test evaluation unit and an adjustment optimization unit. The clock-in range of the management software required by the client and recorded into the database is called by the client demand recording unit through big data, thus confirming the designed effective clock-in range by utilizing the software testing unit, giving an early warning and optimizing the software when the design exceeds the range required by the client; whether misoperation exists in the software testing process or not is determined through the mouse track scanning unit and the button clicking recognition unit, if yes, an alarm signal is sent out and processed in time, delay of follow-up promotion and marketing work of software is avoided, and the satisfaction degree of customers is improved.

The invention relates to a transformation ratio measuring method, in particular to a method for measuring the transformation ratio of a transformer in a power failure state and belongs to the technical field of electrical measurement. The method which is applicable to a current transformer and a voltage transformer comprises the following steps that: 1) an output end of a signal generation circuit, the transformer and a second sampling display element are connected, and the transformer is connected with a first sampling display element; 2) the transformer reads a voltage value through the first sampling display element and the second sampling display element; and 3) if a singlechip calculates the transformation ratio of the transformer in the step 2), the singlechip outputs a calculated result to a display screen. The method for measuring the transformation ratio of the transformer in the power failure state is reasonable in design, simple in structure and diversified in form. By combination of the method and the singlechip, a special instrument is manufactured. The method is a reliable auxiliary method for checking the transformation ratio for metering and relay protection in the power industry.

The invention discloses a scratch resistance evaluation device for a silver fiber. The scratch resistance evaluation device comprises a test board, wherein an analog device for simulating friction contact of the silver fiber and a bearded needle when the silver fiber is knitted on a knitting machine is arranged on the test board; a resistance value measurement device and a friction times collection sensor are arranged on the analog device; the scratch resistance evaluation device also comprises a set resistivity threshold automatic stop system capable of driving the analog device to stop acting when the resistance value achieves a set value; the set resistivity threshold automatic stop system comprises a controller, an information storage module, a digital edition module, a signal output module, a signal input module, a liquid crystal display and a friction times display; the information storage module, the digital edition module, the signal output module, the signal input module, the liquid crystal display and the friction times display are electrically connected with the controller respectively; the signal output module is electrically connected with the analog device; the signal input module is electrically connected with the friction times sensor and the resistance value measurement device; the digital edition module is connected with a digital editor. The test result is accurate, and the resistivity of the silver fiber at any set friction value can be obtained.

The invention discloses a hot-film gas extinguishing chemical concentration sensing module. By the adoption of a diffluence test method, microscale airflow passes through a bypass pipeline, inside which a temperature-sensitive film and a heating film are arranged; the microscale air and a gaseous mixture of the gas extinguishing chemical are heated by the heating film; as the gaseous mixture passes through the temperature-sensitive film, the temperature of the temperature-sensitive film changes and then the resistance value of the temperature-sensitive film changes; voltage value generated from the circuit is outputted, and through signal treatment, a digital signal and an analog signal are outputted. By controlling the flow of gases flowing through the temperature-sensitive film, the temperature change of the temperature-sensitive film is determined by the concentration of the gaseous mixture, and the electric signal generated is processed and outputted so as to obtain the concentration value of the gas extinguishing chemical. The invention can be widely applied in a gas extinguishing chemical concentration test system so as to establish a rapid high-precision gas extinguishing chemical concentration test system.

The invention discloses a mould wiring testing device. The device comprises a box body, a touch control displayer, an alarm control component, a heat dissipating plate, a control board and a wire holder, the touch control displayer and the alarm control component are arranged on the top of the box body, the heat dissipating plate is located at the front surface of the box body, the wire holder islocated at the back surface of the box body, the alarm control component is arranged at the back surface of the box body, close to the top of the box body, and the control board is arranged inside thebox body; the invention further discloses a related system and method. The testing device can quickly detect connection correctness, installation stability and wire body quality reliability of temperature sensing wires and heating wires.

The present invention discloses a test method of influence of heat effect on a transformer anti-short circuit capability. The method comprises: applying total loss and a low-voltage end short circuit to the high-voltage end of a transformer to be tested, wherein the total loss is the sum of the no-load loss and the load loss of the transformer to be tested; testing the oil temperature of the transformer to be tested; if the oil temperature of the transformer to be tested is stable, stopping applying the total loss to the high-voltage end of the transformer to be tested; performing short-circuit test of the transformer to be tested after temperature rising, and measuring the maximum short-circuit current I1 of the transformer to be tested after temperature rising; decreasing the transformer to be tested to environment temperature, performing short-circuit test of the transformer to be tested which is reduced to the environment temperature, and measuring the maximum short-circuit current I2 of the transformer to be tested in the environment temperature; and comparing the I1 with the I2, and obtaining the influence of the heat effect on the anti-short circuit capability of the transformer to be tested. The test method is suitable for arbitrary types of transformers, is accurate in test result, simple and easy to operate.

The invention provides an OpenSSL-based QAT performance comparison method and system. The method comprises the steps of installing a QAT driver, OpenSSL and qat-engine; loading USDM; running lsmod; checking whether the USDM component is successfully loaded or not; creating a qat-engine environment of the OpenSSL; and comparing algorithm speeds of the qat-engine and the OpenSSL to obtain performance comparison data. QAT and SW are loaded for verifying the speed of the same encryption algorithm; the operation is simple; the test manpower is reduced; a test result is simple and clear; an obtainedconclusion can serve as data support of QAT technology promotion and reference for measuring the technical development quality by test personnel; and the test systems and dimensions of the QAT are enriched.

A method and device for detecting a locomotive reconnection socket in a locomotive are disclosed. A reconnection control detecting device is inserted into a locomotive reconnection socket. The reconnection control detecting device comprises an aerial plug corresponding to the locomotive reconnection socket, and the aerial plug is connected to a detection reconnection control detection module through an extension line; the detection status is reflected by the detection reconnection control detection module; during detecting, the detection reconnection control detection module is directly placedin a driver's cab, and the detection personnel perform detection of the locomotive reconnection socket in the driver's cab, the detection reconnection control detection module will reflect the corresponding detection status, and the detection status is indicated by an indicator light, so that the detection personnel can see the detection result of the locomotive reconnection socket in the driver's cab. The locomotive reconnection socket can be directly detected in the driver's cab by the reconnection control and detection device; and the detection device is convenient to carry, the operationis simple, the response speed is fast, and the test result is concise.

The invention discloses a thermal energy analyzer. The thermal energy analyzer comprises a base and at least three sample cups, wherein the upper surface of the base is inwards sunken to form a groove, at least three fixing grooves are formed around the groove, supporting rods matched with the groove are arranged at the bottoms of the sample cups, the upper surfaces of the sample cups are at leastpartially sunken inwards to form cavities, analysis rods are horizontally arranged in the middles of the cavities, and the two ends of the analysis rods are connected with a computer end through connecting lines. The thermal energy analyzer overcomes the defect that in the prior art, before melted iron pouring of ductile iron, testing methods such as chemical component analysis, spectral analysisand metallographic examination are long in testing period, which makes it difficult to carry out quick and accurate testing to nodularizing inoculation effect of ductile iron graphite before solidification.