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461results about How to "Test stable" patented technology

Method, apparatus and program product for creating a test framework for testing operating system components in a cluster system

InactiveUS20080320071A1Reduce test bucket design timeEliminating time spent in creating documentError detection/correctionMultiple digital computer combinationsOperational systemTest frame
A method, apparatus and program product include an Automatic Testing System for creating a test framework for testing operating system components. The Automatic Testing System resides on a server and includes a master driver which assists in creating test cases and scenarios. The Automatic Testing System issues commands to distribute execution to one or more remote client machines in a cluster through, for instance, an external remote shell program. Results of the command are retrieved, as though it was invoked on the machine directly. The logic and parameters needed to run the test scenarios are stored in a database accessible on the web, and test results are compiled and stored in the database to be sent to any designated test customer.
Owner:IBM CORP

Method for detecting corona discharging and device thereof

ActiveCN101551435ASolving UV Imaging QuantificationEasy to judgeTesting dielectric strengthImaging processingData acquisition
The present invention discloses a method for detecting corona discharging and a device thereof. The method includes steps as follows: A. ultraviolet imagery instrument image-forming; B. collecting the image-forming data to a computer through an image collecting card; C. processing through an image processing program: processing data collected by an image collecting module through the image processing program, the image processing includes: intercepting picture in the video, extracting image, processing image layer extractor to the image, spatial filtering processing, then valve quantity, stating an irradiancy area and a total area in the image, then comparing and obtaining the irradiancy area ratio, finally, obtaining the irradiancy area ratio for characterizing corona strength which includes: a ultraviolet imagery module, an image collecting module, an image processing module, a display module, the image collecting module connects with the ultraviolet imagery module and the image processing module, the image processing module connects with the image collecting module and the display module respectively. The device has simple operation, stable testing and reliable data which can provide direct and obvious data for user.
Owner:STATE GRID HUBEI ELECTRIC POWER RES INST +1

Blood inspection device

A blood inspection device using laser as puncture means. The blood inspection device has an electric power source control circuit for controlling electric power supply of an electric power source section including an electric power source for driving an electric circuit for measurement and also including an electric power source for driving a laser emission device. When a battery is used as the electric power source, the circuit measures the remaining level and voltage of the battery to control the power source so that electric power shortage does not disenable measurement.
Owner:PHC HLDG CORP

Magnetorheological polishing solution rheology testing device

A magnetic rheology polishing solution rheology testing device comprises a computer, a bracket, a torque measuring device fixed on the bracket, a magnetic field generating device, a shearing mechanism and an actuating device, the torque measuring device, the magnetic field generating device and the actuating device are connected with the computer, the shearing mechanism arranged in the magnetic field generating device comprises a shearing ring and a fixed ring, the shearing ring is fixed on the upper side of the fixed ring, the shearing ring and the external circumference on the fixed ring are respectively arranged with a shearing ring edge and a fixed ring edge which have a certain height, a liquid storing groove which is used for storing the magnetic rheology polishing solution is formed between the shearing ring edge and the fixed ring edge, the upper side of the center of the shearing edge which is discal is arranged with a rotation axis connected with the actuating device, and the lower side of the center of the fixed ring is arranged with a connecting axis connected with the torque measuring device. The invention has the advantages of simple and compact structure, low cost, convenient controlling, stable testing, high precision and the like.
Owner:NAT UNIV OF DEFENSE TECH

DP (Digital Processing) decoding and automatic resolution adjusting liquid crystal display module testing method and device

The invention discloses a DP (Digital Processing) decoding and automatic resolution adjusting liquid crystal display module testing method and a device, and relates to the field of liquid crystal display module testing. The testing method comprises the following steps of: decoding DP video signals to obtain video data and video parameter information thereof, wherein the video parameter information comprises resolution parameters; matching the video data with video data required by a liquid crystal display module to be tested according to the video parameter information and the video parameter information of the liquid crystal display module to the tested; conducting video encoding processing to the matched video data according to the communication interface and the video time sequence parameter of the liquid crystal display module to be tested to obtain video testing signals which are matched with the communication interface of the liquid crystal display module to be tested, and the video testing signals test the liquid crystal display module to be tested. The DP decoding and automatic resolution adjusting liquid crystal display module testing method and the device have the advantages that the energy consumption is lower during liquid crystal display module testing, the resolution can be automatically adjusted according to the liquid crystal display module, the liquid crystal display modules of different types can be automatically adapted, and not only is the testing cost lower and the testing efficiency higher, but also the energy consumption is lower and the stability and the reliability are higher.
Owner:WUHAN JINGCE ELECTRONICS GRP CO LTD

Micro-field-of-view bilateral dynamic in-situ micro-torsion material mechanical property tester

ActiveCN103499499ASmall torsion angleEasy to observeStrength propertiesMicro nanoGrating
Disclosed is a micro-field-of-view bilateral dynamic in-situ micro-torsion material mechanical property tester. The tester comprises a base, a direct-current servo motor, a transmission, elastic couplings, two spindles and clamps. The tester is characterized in that the transmission is provided with a left bilaterally-through output shaft and a right bilaterally-through output shaft, the left spindle and the right spindle are arranged on the base oppositely, axes of the two spindles are on a same straight line, each spindle is provided with the corresponding lamp, a torque sensor, a flange, a reading head connector, a circular grating reading head and a circular grating sequentially from front to back, and the rear end of each spindle is connected with the corresponding output shaft trough a transmission gear to acquire torque. The tester is compact in structure, small in size, controllable in angular strain rate and convenient to operate, has good use compatibility with imaging apparatuses and can perform whole-process all-round in-situ monitoring on micro deformation, damage and breakage processes on materials, and a novel testing instrument and method is provided for revealing mechanical properties and damage mechanisms of the materials in micro-nano scale.
Owner:JILIN UNIV +1

Automatic testing method for modulating and demodulation unit and its testing system

The invention relates to modem automation testing method and testing system. The method includes the following steps that connecting the modem to the circuit simulator and the correlative testing device to form a testing environment and open the corresponding communication control port; controlling the circuit simulator and simulating the given distance and the noise environment; controlling the tested device to do testing operation and extract the performance testing result from it. The invention combines the circuit simulator, the operation of the DSLAM device and the testing data extracting to a automation script running to avoid great hand operation, realize the adding-distance adding-noise automation testing of the modem.
Owner:ZTE CORP

Tester for testing multifunctional vane

The invention discloses a tester for testing a multifunctional vane, which comprises a test bed, a tester for testing static strength and a tester for testing fatigue, wherein the bed body of the test bed is cast by reinforced concrete; the part of the test bed below ground takes the shape of a ladder; and the front end of the part of the test bed above ground is provided with a vane connecting disc fixed by a fixing part. The vane connecting disc and the bed body corresponding to the vane connecting disc are internally provided with a plurality of blind holes which are internally provided with bolt sleeves embedded with the vane connecting disc. The bolt sleeves are fixed by extension reinforcing rods fixed in the bed body. In addition, a test pit is positioned on the ground on which the front end of the bed body of the test bed is arranged; and the test pit is a slope with one end away from the bed body extending below ground. The invention has the advantages of solid structure, strong holding power and long service life. The tester has firm structure, strong supporting force and long service life, and is suitable for installation test of various vanes with different sizes, available for tests of different indexes for vanes. The tester is accurate in test, very convenient in use and wide in application range. In addition, the tester has the advantages of reducing disassembly and assembly of the vane for testing the performance index thereof, saving the testing time and cost, and reducing the damage to the vane.
Owner:中能风电设备有限公司

Multifunctional hydraulic comprehensive test bench

The invention relates to the technical field of hydraulic test equipment, in particular to a multifunctional hydraulic comprehensive test bench, comprising a platen. A groove is formed on the upper surface of the platen. A first bearing is though provided on the middle of each of the two sides of the inner wall of the groove. An adjusting rod is rotationally provided between the two first bearings. A pressure sensor is fixedly mounted at each of the four corners of the upper surface of the movable plate. A supporting plate is fixedly mounted on each of the two ends of one side of the upper surface of the platen. A top cover is fixedly mounted on the upper end of each of the supporting plates. A hydraulic push rod is fixedly mounted at the middle of the lower surface of the top cover. A pressing plate is fixedly mounted at the lower end of the hydraulic push rod. Four positioning mechanisms are fixedly mounted on one side of the upper surface of the platen. A placing plate is fixedly mounted among the four positioning mechanisms. A mounting groove is formed on the upper portion of one side of the fixed block. A second sliding groove is fixedly mounted on each of the two sides of theinner wall of the mounting groove. According to the multifunctional hydraulic comprehensive test bench, a test piece can be fixed and adjusted, the operation is simple, the use is convenient and thepracticability is high.
Owner:湖北泰和电气有限公司

Plating surface wear resistance tester

The invention relates to a plating surface wear resistance tester, which comprises a sample carrying platform, a grinding mechanism, a driving mechanism and a limiting connector, wherein the grinding mechanism is arranged above the sample carrying platform by a support and comprises a sleeve which is arranged on the support and a grinding head and a weight which are arranged on the sleeve; the weight is arranged above the grinding head and adds a load onto the grinding head; the driving mechanism drives the sample carrying platform or the grinding mechanism to do reciprocal movement so that reciprocal sliding friction is generated between the grinding head and a sample to be tested; the lower end of the weight is provided with a fixed rod, and the upper end of the sleeve is suitable for the fixed rod to be inserted into; the lower end of the sleeve is suitable for the upper end of the grinding head to be inserted into; a shock absorbing device is arranged between the upper end of the grinding head and the fixed rod; and the limiting connector is used for connecting the fixed rod and the grinding head to the sleeve respectively and allowing the fixed rod and the grinding head to make up and down displacement along the axial direction of the sleeve. The plating surface wear resistance tester can operate quietly in a test process and delivers an accurate test result.
Owner:WENZHOU YIHUA CONNECTOR

Simulation test method and device of automatic driving system and storage medium

The invention discloses a simulation test method and device of an automatic driving system and a storage medium, and is applied to the field of automatic driving. The method comprises the steps of obtaining a target test scene in the automatic driving system; adjusting the first control algorithm based on a preset decision to obtain a second control algorithm; further, performing at least two simulation tests in the target test scene based on a second control algorithm to obtain first test data and second test data; and comparing the first test data with the second test data to obtain a test result for indicating the consistency of the automatic driving system. Therefore, the stability consistency test process is realized, the variable parameters in the control algorithm are constrained, the interference of the control algorithm on the automatic driving system test is removed, and the accuracy of the test result is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Metal oxide semiconductor field effect transistor on-resistance measuring method

The invention relates to a metal oxide semiconductor field effect transistor on-resistance measuring method which comprises the following steps: sucking the back surface of a wafer through a chuck; connecting a low-potential excitation line and a low-potential detection line in a Kelvin test method to a source electrode of a MOS transistor to be tested, connecting a first high-potential excitation line and a first high-potential detection line in the Kelvin test method to a grid electrode of the MOS transistor to be tested, selecting another MOS transistor on the wafer as an auxiliary transistor, connecting a second high-potential excitation line in the Kelvin test method to the chuck, and connecting a second high-potential detection line in the Kelvin test method to a source electrode of the auxiliary transistor; and adding a break-over voltage between a grid electrode and the source electrode of the auxiliary transistor to enable the auxiliary transistor to be in an on state, powering on an on-resistance measuring circuit and measuring the on-resistance of the MOS transistor to be tested. Through a die compensation method, real Kelvin connection is realized, so that on-resistance of the MOS transistor can be measured stably and accurately.
Owner:华润赛美科微电子(深圳)有限公司

Two-hybrid yeast for detecting estrogen-like compound in environment and biological test method

The invention provides a two-hybrid yeast for detecting estrogen-like compounds in environmental samples and a preparation method thereof, wherein the yeast contains pGBKT7-ER yeast expression plasmids and pGAD424-GRIP1 yeast expression plasmids, wherein the pGBKT7-ER yeast expression plasmids contain estrogen receptor genes, and the pGAD424-GRIP1 yeast expression plasmids contain estrogen receptor coactivated factor genetic fragments with the sequence of SEQ ID No.2. The invention also provides a bioassay method for detecting the estrogen-like compounds in the environment, which comprises: co-culturing two-hybrid yeast cells and a sample to be detected, adding a reaction liquid of o-nitrobenzene-beta-D-galactopyranoside for reaction, and calculating the concentration of the estrogen-like compounds according to the detected absorbance value of supernatant at 420 nanometers after the reaction stops. The invention adopts the two-hybrid yeast of recombinant estrogen receptor genes for test, and is more close to the actual action conditions of an endocrine system of a mammal; constructed yeast cell genes have stable character and are easy to culture and screen; the screening process of the whole estrogen-like effect is simple to operate; and the required quantity of the sample is small, and the cost is low.
Owner:RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI

Digitally displayed automatic adhesive force instrument

The invention provides a digitally displayed automatic adhesive force instrument. The adhesive force instrument comprises a control part and a mechanical part, wherein a motor of the control part is fixed on a cross beam of a supporting framework; a rotating shaft of the motor is connected with one end of a steel wire; the steel wire hangs down after wrapping over a pulley fixed on the cross beam of the supporting framework along the cross beam of the supporting framework, and the other end of the steel wire is connected with one end of a steel wire joint connected with a drawing force sensor; the other end of the steel wire joint is connected with a preloading block through a soft drawn wire; a test sample box fixed on a test sample box base is arranged below the preloading block; the steel wire, the drawing force sensor, the preloading block and the test sample box are arranged on the same axial line; the motor is electrically connected with a control box body; and the drawing force sensor is electrically connected with the control box body. The digitally displayed automatic adhesive force instrument has the advantages that: due to the structure of the instrument, the test steps are reduced, the work of weighing steel balls is reduced, a loading rate and a stress on a test sample are uniform and test data acquisition is more stable and accurate, so that a test result is closer to a real value and the test efficiency is improved greatly; therefore, the digitally displayed automatic adhesive force instrument is applicable to adhesive force measurement of various soils.
Owner:CHINA COMM CONSTR FIRST HARBOR CONSULTANTS

Apparatus for detecting mechanoluminescent performance of luminescent material

The invention relates to an apparatus for detecting mechanoluminescent performance of a luminescent material. The apparatus comprises a dark chamber, an objective table, an ultraviolet lamp, a pressure signal monitoring system, and an optical signal monitoring system; the dark chamber comprises an internal layer dark chamber and an external layer dark chamber, the internal layer dark chamber is placed at one side of the bottom of the external layer dark chamber, and the ultraviolet lamp is arranged in the external layer dark chamber and positioned over the internal layer dark chamber; the pressure transducer is arranged in the external layer dark chamber, and opposites a force application port over the external layer dark chamber, a pressure signal output port is arranged at an outer wallof the external layer dark chamber, and the pressure transducer, a pressure transmitter and the pressure signal output port are electrically connected in order; an objective table is arranged over theinternal layer dark chamber, a sample installation groove is arranged at the objective table, the sample installation groove and the force application port over the external layer dark chamber, and the pressure transducer are coaxially arranged. The apparatus has the advantages that simultaneous and synchronous monitoring is carried out, a pressure signal of mechanical excitation force and the generated optical signal are recorded, and the monitoring result is accurate. The apparatus belongs to the technical field of detection.
Owner:SOUTH CHINA UNIV OF TECH

Calibration method of quartz crystal microbalance

The invention relates to a calibration method of a quartz crystal microbalance, belonging to the technical field of aeronautics and astronautics. The method comprises depositing heavy metal gold at the surface of the quartz crystal microbalance by using a magnetron sputtering device; injecting an inert gas in a vacuum system; observing and recording the vacuum degree of a vacuum chamber; monitoring and storing the frequency value and the temperature value of the quartz crystal microbalance; monitoring and storing the S polarized light current and P polarized light current of ellipsometry system, and finally closing the testing system, closing the gas charging system of inert gas, and closing the vacuum system. The method improves the sensibility of precision measurement of the quartz crystal microbalance; the test procedure is stable and reliable, and has good replicability; an ellipsometry film thickness measuring apparatus is used for providing direct film thickness measuring method for the quartz crystal microbalance; and the method has high measuring accuracy, stable test procedure and good replicability.
Owner:NO 510 INST THE FIFTH RES INST OFCHINA AEROSPAE SCI & TECH

Tensile test device

The invention provides a tensile test device for tensile test of binding strength between an electronic component body and a pin. The device comprises a base, a push and pull dynamometer, a rack and a fixture. The base comprises a support frame and an installation part; the push and pull dynamometer is mounted on a mounting portion and contains an extension part; the rack is connected to the extension part, and is used for hanging the body and towards the exposed pin on the base; and the fixture is arranged on the base, right opposite to the rack and for clamping the pin. The invention can avoid electronic component body deformation caused by a known tensile test device and eliminate complex steps of welding and welding removal of the pin and a test wire, and can solve problems caused by component force in the test, thereby having the advantages of convenient operation, stable test process, improvement on test efficiency and reliability.
Owner:ASKEY TECH JIANGSU +1

Measuring device blocking position of gas pipeline and measuring method thereof

The invention discloses a measuring device of a blocking position of a gas pipeline. The measuring device comprises a gas tank, and a first Pt thermometer and an exhaust pressure-resistance valve are connected to the gas tank. The gas tank is connected with the gas pipeline through a pressure-resistance flexible pipe, a second Pt thermometer is arranged on the gas pipeline, and a first pressure-resistance valve and a second pressure-resistance valve are respectively arranged on the pressure-resistance flexible pipe. A pressure sensor is connected to the pressure-resistance flexible pipe between the two pressure-resistance valves. The invention further discloses a measuring method of the measuring device. The measuring method comprises the steps that firstly, the initial pressure and temperature of gas in the gas tank are measured; secondly, the initial pressure and temperature of gas in the gas pipeline are measured; thirdly, the two pressure-resistance valves are opened, the gas in the gas pipeline flows towards the gas tank, and the pressure and temperature of the gas in a balanced state are measured; fourthly, the two pressure-resistance valves are closed, and the exhaust pressure-resistance valve of the gas tank is opened to discharge the gas; fifthly, an algorithm module in a computer is utilized to obtain the blocking position of the gas pipeline. The measuring device of the blocking position of the gas pipeline and the measuring method of the measuring device can accurately determine the blocking position of the gas pipeline.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Multi-locomotive fixing and rolling test platform

The invention relates to a multi-locomotive fixing and rolling test platform which comprises two or three test platforms. Each test platform comprises a pair of counter-force frames (1), an upper axle (2) and test unit groups, wherein the test unit groups comprise test units having same number with single locomotive wheel pairs (41). All the test units adopt the structure that shafts of a track wheel pair (43) for supporting the locomotive wheel pairs (41) are connected with shafts of winding asynchronous motors (36), and the diameter / length ratio of the winding asynchronous motors is larger than 1; stator windings of all the winding asynchronous motors (36) of each test unit group are connected with a power grid by a three-phase switch I (63) of a stator three-phase bus bar (53) of each asynchronous motor, and rotor windings are connected in parallel to a rotor three-phase bus bar (49) of each asynchronous motor; and the rotor three-phase bus bars of the asynchronous motors of all the test unit groups are connected by a breaker (62). The test platform carries out a mutual accompanying test by multiple locomotives and has reliable synchronization and convenient test and can form the mutual feedback of energy, reduce the capacity of a power supply and save energy sources and cost.
Owner:SOUTHWEST JIAOTONG UNIV

Method for measuring water content in crude oil

The invention discloses a method for measuring water content in crude oil. The method is specially implemented in the following steps of: step 1, using a scale to weigh a mass of a picknometer; and step 2, filling the crude oil into the picknometer, measuring a mass of the picknometer contained with the crude oil, and obtaining the water content in the crude oil by using a pure water and pure oil density combining formula. The method provided by the invention not only has the advantages of simple structural structure and accurate measurement result, but also is not limited by a water content range, an emulsification condition of an oil product, and a condition that whether the oil and the water are layered according to the principle that an oil density and a water density are different at the same temperature, and the principle of mass conservation.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Testing system and testing method for function of air-conditioner controller software

The invention provides a testing system and a testing method for function of air-conditioner controller software. The testing system comprises a PC (personal computer) end, and the PC end is connected with an air-conditioner controller main board through a testing unit. The testing unit is provided with a PC communication module, an analog remote-control command module, a sensor analog module and an output equipment state testing module, wherein the PC communication module is connected with the PC end, the analog remote-control command module sends commands to the air-conditioner controller main board, and both the sensor analog module and the output equipment state testing module are connected with the air-conditioner controller main board. The testing system and the testing method are used for function testing and recording in development of the air-conditioner controller software, can complete testing and save results automatically, and accordingly bring convenience to inquiry and browse, improve work efficiency while avoiding complexity and instability of manual testing.
Owner:QINGDAO HISENSE HITACHI AIR CONDITIONING SYST

Biosensor test strip

This invention discloses a biosensor test strip that comprises a substrate, on which lies a conductive layer that contains a plurality of contact pads, check pads and reaction zones, which contains a plurality of working and reference electrodes, and on which the reaction reagent is deposited. The first contact pad is connected to the working electrode, while the second contact pad is connected to the reference electrode. Furthermore, this invention discloses a biosensor test strip for multiple tests on a single strip. The biosensor test strip includes a substrate with a plurality of incisions to divide the substrate into a plurality of individual test sections.
Owner:JOINSOON MEDICAL TECH

A large-scale bolt torque testing equipment

The invention belongs to experimental and testing devices for mechanical parts, and specifically relates to a torque force testing device for a large-sized bolt. The device comprises a clamping and fixing part and a twisting part; the clamping and fixing part is formed by the way that two guide rails (22) are arranged on a pedestal (17), left and right guide sleeves (21) are arranged on each guide rail (22), a sliding pull base (28) is formed on the four guide sleeves (21), a bolt pull sleeve (7) is placed in an opening cavity of the sliding pull base (28), and two sides of the bolt pull sleeve (7) are sleeved in sliding rails (8) at two sides of the opening cavity of the sliding pull base (28) via sliding sleeves (6); a front end of a tensioning screw (2) is connected with the bolt pull sleeve (7); a locking screw disc (3) is sleeved on the tensioning screw (2); a rack (25) is arranged on the pedestal (17); and a shaft (19) of a wheel gear (24) engaged with the rack penetrates into the sliding pull base (28). The twisting part is orderly composed of a nut sleeve head (10), a rotary special-shaped head (11), a universal coupling (12), a torque sensor (13), a coupling (14), a reducer (15) and a motor (16). The torque force testing device is steady, reliable, accurate, safe and convenient in the test procedure, and can implement automatic test and improve the speed, the efficiency and the accuracy of the test.
Owner:上海宝冶工程技术有限公司 +1

Dry-hole pressure relief valve and hydraulic fracturing crustal stress testing device

The invention discloses a dry-hole pressure relief valve and a hydraulic fracturing crustal stress testing device, and relates to the technical field of rock mass engineering testing. A valve core of the dry-hole pressure relief valve is inserted in a valve cavity from the insertion end of a valve body, and one end of the valve core extends out of the insertion end; a plurality of pressure relief holes are formed in the end, away from the insertion end, of the valve body, the valve core is provided with a blocking part which can block the valve cavity, and the insertion end of the valve body is provided with a limit nut for limiting the length of the part, extending out of the valve body, of the valve core; the part, located between the blocking part and the limit nut, of the valve core is sleeved with a load-bearing spring; the dry-hole pressure relief valve is simple in structure and convenient to operate, and can effectively relieve pressure in a packer. A high-pressure pump of the hydraulic fracturing crustal stress testing device is communicated with the top end of a drilling hole, the bottom end of the drilling hole is communicated with the dry-hole pressure relief value, the end, extending out of the insertion end, of the valve core is communicated with a switching valve, and the switching valve is communicated with the packer. Through the adoption of the hydraulic fracturing crustal stress testing device, crustal stress tests can be conducted under the conditions of deep drilling holes and dry holes by using a hydraulic fracturing method, and the tests are stable.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

System and method for testing performance of copper core low-voltage cable after manufacturing and processing

The invention provides a system and a method for testing the performance of a copper core low-voltage cable after manufacturing and processing, and the system comprises a double-item detection mechanism, a single-item detection mechanism and a joint control mechanism. Since an existing cable mechanical performance testing device can only test the cable of one model and size, when mechanical performance testing is carried out on cables of different models and sizes, testing can be carried out only by replacing devices of corresponding models, and mechanical performance testing of the cables has limitation and is high in testing cost; and testing of the mechanical performance of the cables is divided into a plurality of specific small testing, and the existing testing device for the mechanical properties of the cable cannot meet the operation execution of various tests, is difficult to ensure the comprehensive detection of different mechanical properties of the cable, and cannot meet the strict test requirements of various properties of the cable after being manufactured and processed, and the like.
Owner:山东兖矿集团长龙电缆制造有限公司

Rapid penetration testing device for low-penetrability media

ActiveCN106370580ASolving Permeability Measurement ProblemsTest stablePermeability/surface area analysisOsmotic coefficientEngineering
The invention relates to a rapid penetration testing device for low-penetrability media, and aims to provide a rapid penetration testing device for the low-penetrability media, wherein the rapid penetration testing device is simple in structure and rapid and accurate in measurement. The rapid penetration testing device is characterized by comprising a water supply device, a penetration instrument, a suction flask, an electronic scale and a negative-pressure device. The rapid penetration testing device is applicable to the field of soil engineering testing technique and environmental judgment, and particularly applicable to measurement of penetration coefficients of low-penetrability media.
Owner:POWERCHINA HUADONG ENG COPORATION LTD
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