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43 results about "Immobilization test" patented technology

In the first test, the patient sits in bed with his or her legs outstretched while electromyograms are recorded from right and left anterior tibialis muscles for an hour (Suggested Immobilization Test [SIT]); in the second test, the legs are immobilized in a stretcher (Forced Immobilization Test [FIT]).

Method and clamp for testing anti-stripping strength of cigarette water-soluble adhesive on cigarette paper

The invention provides a method and clamp for testing the anti-stripping strength of a cigarette water-soluble adhesive on cigarette paper. The clamp comprises a straight line mechanism sliding through a linear bearing and an angle adjusting support mounted on the straight line mechanism. A sample strip supporting plate is hinged to the angle adjusting support and can forwardly and reversely rotate by 360 degrees on the angle adjusting support around a hinged point. The angle adjusting support is provided with a locking mechanism used for fixing the position of the sample strip supporting plate, and the sample strip supporting plate is provided with a clamping groove which is matched with testing sample strips in thickness and used for fixing the testing sample strips. According to the method and clamp, a good supplementing and perfecting effect is achieved for the limitation that only 90-degree and 180-degree anti-stripping strength of the adhesive can be measured, and particularly the cigarette production process can be well represented; after the water-soluble adhesive is used, an adhesive connecting face can be suffered by the actual strength of a non-90-degree stripping forcedestroy effect usually, and the important significance to improving technology progress is achieved in the cigarette industry is achieved.
Owner:CHINA TOBACCO HUNAN INDAL CORP

Residue soil improvement experimental device for shield method tunnel construction

The invention discloses a residue soil improvement experimental device for shield method tunnel construction, belonging to the technical field of shield method tunnel construction. The experimental device comprises a steel cylinder, stirring blades, a stirring shaft, a motor, a speed reducer, a torque meter, a test block fixing device, a test block and the like, and is partitioned into a test cylinder and a stirring device, wherein four improvement solution injection ports are formed; the stirring blades are uniformly distributed on the wall of the steel cylinder; four stirring blades are crossly connected to the stirring shaft; the tail end of one of the stirring blades is provided with a tool material test block fixing device; the test block is fixed at the tail end of the stirring blade of the test block fixing device; the left lower parts of a connector pipe and a connector pipe valve are connected with the steel cylinder; and the right lower part of a drain pipe valve is connected with the steel cylinder. In the device, the flow plasticity and shearing resistance of residue soil are quantitatively described by measuring the rotary torques of the stirring blades, the permeability coefficient of residue soil is measured by performing a permeation experiment, and the abrasiveness of residue soil on a tool is detected by measuring the abrasion loss of a tool material.
Owner:SHENYANG HEAVY MACHINERY GROUP

Drainage asphalt mixture water permeability performance test device and test method thereof

InactiveCN105136645AIntuitive water permeabilityGood for evaluating water permeabilityPermeability/surface area analysisWater storageImmobilization test
The invention relates to a drainage asphalt mixture water permeability performance test device. The drainage asphalt mixture water permeability performance test device comprises a water storage cylinder, a tubular monitor made of a transparent material, a test mold for fixing a test piece and a water amount collector, wherein a water outlet pipe at the bottom of the water storage cylinder is connected with the upper end of the monitor, the lower end of the monitor is connected with an inlet pipe at the upper end of the test mold through a pipe and a connecting nut, the water amount collector is located right below an outlet pipe at the lower end of the test mold and is used for measuring the amount of water which permeates through the test piece, a first valve is installed on a pipe between the monitor and the test mold and a second valve is installed on the outlet pipe at the lower end of the test mold. The invention further provides a drainage asphalt mixture water permeability performance test method using the device. The drainage asphalt mixture water permeability performance test device and method have the advantages that the structure is simple, the operation is convenient to perform, the water permeability performance of drainage asphalt mixture under different rainfalls can be quickly, accurately and intuitively obtained, and a theoretical basis can be provided for the optimization design of the mixing ratio of the drainage asphalt mixture.
Owner:SOUTH CHINA UNIV OF TECH

Visual concrete-structured reinforcing steel corrosion test device and operation method of visual concrete-structured reinforcing steel corrosion test device

ActiveCN103983565AClearly see rust changesOvercome the disadvantage of poor visibilityWeather/light/corrosion resistanceHydrogen-Ion ConcentrationsPotassium hydroxide
The invention relates to a visual concrete-structured reinforcing steel corrosion test device and an operation method of the visual concrete-structured reinforcing steel corrosion test device; the visual concrete-structured reinforcing steel corrosion test device disclosed by the invention comprises a test box and a box cover which can be covered with the test box in a sealing manner; both the test box and the box cover are made of a transparent material; transparent guide plates are arranged in the test box; the transparent guide plates are arranged in a staggered manner, so that the internal space of the test box is separated into zigzag spaces; a reference electrode fixing base for fixing a reference electrode and a test piece fixing base for fixing a test piece are arranged in the test box; the installation position can be changed through the test piece fixing base; the reference electrode and the test piece are connected with a test apparatus through a monitoring connection line respectively. When the visual concrete-structured reinforcing steel corrosion test device is used, the test piece fixing base fixed with the test piece is put at a proper position; then, a test solution is poured into the test box; different concrete conductivities are simulated by adjusting the purity and the liquid path zigzag length of the test solution; different concrete gap liquid hydrogen ion concentration pH values are simulated by adjusting the contents of calcium hydroxide, potassium hydroxide and the like in the test solution; the test method disclosed by the invention is simple; parameters are convenient to adjust.
Owner:NINGBO UNIVERSITY OF TECHNOLOGY

Rock fracturing high pressure gas adsorption test instrument and test method thereof

The invention discloses a rock fracturing high pressure gas adsorption test instrument and a test method thereof. The instrument comprises a pressure-bearing pressure head, a bearing limiting device,a constant temperature system, a pressure-bearing pedestal, a fixed unit for fixing and testing a rock test piece, a buffer gas tank, a helium storage tank, a test gas storage tank, an oil pump, an oil circuit, a gas pipeline, a gas-pressure meter and a gas switch. The pressure-bearing pedestal is provided with the constant temperature system and the fixed unit. The bearing limiting device, the fixed unit, the buffer gas tank, the oil pump, the gas-pressure meter, an upper air inlet switch and a lower air inlet switch are arranged in the constant temperature system. The oil pump is connected with the inner cavity of the unit main body of the fixed unit through an oil way. The helium storage tank, the test gas storage tank, a helium switch and a test gas switch are arranged on the externalportion of the constant temperature system. The buffer gas tank is connected to the helium storage tank and the test gas storage tank through helium and test gas pipelines, and the helium and test gaspipelines are provided with the helium switch and the test gas switch. The instrument and the method have characteristics that the structure is simple; assembling is convenient; and work is safe andreliable and so on.
Owner:CHANGZHOU INST OF TECH

Anti-haze window screening filtering effect testing device and testing method

The invention discloses an anti-haze window screening filtering effect testing device and a testing method. A relatively large end of a diffusion part is connected with an opening of a tubular body; arelatively end of the diffusion part is an air inlet hole; a clamping part is arranged in the middle of the tubular body; the clamping part is used for clamping and fixing a testing sample; the innercavity of the tubular body is partitioned into an upstream space and a downstream space far away from the opening by the testing sample; a negative pressure unit is arranged at one end far away fromthe diffusion part, of the tubular body; the negative pressure unit is communicated with the inner cavity of the tubular body through a first flowmeter; a pressure gauge for detecting air pressure ontwo sides of the testing sample is arranged inside the tubular body; one end of the pressure gauge is connected with the upstream space; the other end of the pressure gauge is connected with the downstream space. The testing device has the advantage of being simple in structure, and as different functional units are controlled and data are read by using a computer unit, the testing process can besimple and convenient. By adopting the testing device, three testing modes of mixing solid aerosol, liquid aerosol and solid-liquid aerosol can be achieved, and the mixing ratio of solid and liquid aerosol can be controlled.
Owner:GUANGZHOU FIBER PROD TESTING & RES INST

Vertical pulling-up test device and test method for chair

The invention discloses a vertical pulling-up test device and a vertical pulling-up test method for a chair. The test device comprises a test table, an installing support frame, a clamping component and a lifting mechanism, wherein the test table comprises a base and a support seat fixedly arranged on the base, the support seat bears the chair to be tested, the lifting mechanism is arranged on the installing support frame, and the clamping component is arranged on a movable component of the lifting mechanism. The test method comprises the steps of: fixing the chair to be tested and regulating the position of the clamping component so that the clamping component is clamped in the center part of the front edge of the chair to be tested; repeatedly and vertically exerting the force in the position to be tested of the chair to be tested, and judging that the chair to be tested passes the test if the chair to be tested deforms or fractures within the preset experiment times; and otherwise, judging that the chair to be tested does not pass the test. The test device and the test method have the advantages that the clamping component vertically exerts the force in the position to be tested of the chair to be tested, and the pulling-up resistance intensity of the chair can be inspected through repeated experiments for many times.
Owner:GUANGZHOU ACT INDAL

Wear-resistant and long-life guide rail test device and test method thereof

ActiveCN109283081AImproving Efficiency in Abrasion TestingHigh precisionInvestigating abrasion/wear resistanceTest efficiencyPresent method
The invention discloses a wear-resistant and long-life guide rail test device and a test method thereof. The wear-resistant and long-life guide rail test device comprises a machine frame; fixed platesare welded and fixed at two ends of the machine frame; the two fixed plates are each movably provided with a clamping component used for fixing a test guide rail; the two clamping components are separately fixed at two ends of a bracket through screws; a fixed sleeve is rotatably connected with the top of a first screw; a reciprocating screw is installed on the tops of the two fixed plates through a bearing; and a test sliding block is fixed on a reciprocating screw sliding block through a bolt. According to the wear-resistant and long-life guide rail test device and the test method thereof in the invention, to-be-tested guide rails different in length can be fixed through the clamping components; therefore, the wear-resistant test efficiency of the guide rail is easily increased; the height of the two clamping components is adjusted through the first screw; the friction force between the to-be-tested guide rail and the test sliding block is changed; the running time of the guide railin the test period can be counted through a photoelectric counter; and thus, the guide rail test precision is easily increased.
Owner:CHUZHOU OUBOTE ELECTRONICS MFG

Gas layer reducing resistance type physical simulation testing device and testing method thereof

ActiveCN110033676AMeet the test conditionsAccurate measurement of continuous force changesHydrodynamic testingEducational modelsImmobilization testDynamometer
The invention discloses a gas layer reducing resistance type physical simulation testing device and a testing method thereof and belongs to the field of fluid resistance measurement. The gas layer reducing resistance type physical simulation testing device comprises a water/air supply system, a water/wind tunnel system and a force measurement system. The water/air supply system combines a high-pressure air tank with a high-pressure water storage tank, and a middle experimental section of the water/wind tunnel system is fixed to a mounting frame through a front supporting seat and a rear supporting seat. In the force measurement system, a test model is fixed at the front end of a force transfer rod, extends into an a cylinder in the experimental section and then extends out through a firstlinear bearing on a cover plate, and the rear end of the force transfer rod butts against a force measurement female tooth at the front end of a dynamometer through a force measurement male tooth. Thetest model is hindered by interaction with fluid, acting force generated by the fluid pushes the test model, and the force transfer rod transfers the acting force borne by the test model to the dynamometer, so that resistance data of the test model are obtained. The gas layer reducing resistance type physical simulation testing device is simple and compact in structure, easy to operate, low in cost, stable and reliable in test and convenient in replacement of experimental models, and overcomes the defects of long preparation period and huge investment of water/wind tunnel experiments.
Owner:SOUTH CHINA UNIV OF TECH

Heat penetration tester

The invention discloses a heat penetration tester, which comprises a testing jig and an electrical appliance control box, wherein the testing jig comprises a lever arranged on the upper end of an upright post; one side of the lever is connected with a sliding pole, and a sliding seat is sleeved on the sliding pole; the bottom end of the sliding pole is connected with an impact head; an induction coil is winded on the outside of the impact head, and a micro thermocouple is arranged in the impact head; a test worktable for fixing a product to be tested is arranged below the impact head, and a temperature sensor is arranged in the test worktable; the underside of the other side of the lever is connected with an iron block, and the underside of the iron block is opposite to a micro electromagnet; and the electrical appliance control box is fixed on the upright pole, and a control module, a high-frequency current generator, a temperature module and a delay module are arranged in the electrical appliance control box. Due to the electromagnetic heating technique adopted by the invention, the volume of the impact head is small and heating is quick, so test waiting time is reduced; in addition, the impact head has a small test power and is environmentally-friendly, energy-saving and long in service life.
Owner:TAICANG RUIJIE EXPERIMENTAL INSTR MFG
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