35results about How to "Comprehensive experiment" patented technology

The invention discloses an anti-seismic experimental device for assembled bridge engineering, which comprises a base, a movable seat and a first installation warehouse, a fixed warehouse is fixed at the middle position on the top of the base, and a second installation warehouse is installed on the outside of the fixed warehouse. Two toothed rings, and a movable seat is arranged inside the fixed warehouse, and a first annular chute is opened on both sides of the top of the base. This kind of anti-seismic experimental device for assembled bridge engineering is through the meshing connection between the first gear and the second gear ring and the first gear ring, and the meshing connection between the first gear ring and the second gear, so that the second When a motor drives the second rotating shaft to rotate, it can make the first rotating shaft continue to do planetary motion, and then drive the movable seat to shake in multiple directions, so that multi-directional vibration experiments can be carried out in a single time, and the bridge model on the placement plate can be further multiplied. Azimuth vibration, so that it is more in line with the actual use situation, and more comprehensive experiments can be carried out.

The invention relates to an assembled steel structure joint experiment device, which effectively solves the problem of lack of device comparison experiments for existing bolted welded joints and bolted joints; the technical solution includes a housing with clamping and pressure devices, The clamping device includes a pull plate slidingly matched with the shell, and the shell is rotatably matched with a clamping rod. There are two threads on the clamping rod that are respectively matched with the pull plate. The two rotating columns are fixed with fixed seats, and the two fixed seats are threaded to match the top column, and the bottom of the fixed seat is rotated to match the turbine, and the two turbines are threaded with the top column; there are two columns on the shell, and the upper columns are rotated Cooperate with the worm, when the rotating column rotates, the turbine can mesh with the worm; there is a cylinder on any column, one end of the cylinder is connected to the air pump, the cylinder slides and cooperates with the push plate, the worm coaxially fixes the gear placed in the cylinder, and the push plate is fixed with a The gear rack is meshed with the gears; the invention has ingenious structure and good experimental effect.

The invention discloses an indoor detecting probe of fluorescent solution concentration. The probe comprises an exciting light source part and a fluorescent induction part which are oppositely arranged. The exciting light source part comprises a lower plate lens. A UV lamp is arranged below the lower plate lens. The fluorescent induction part comprises an upper plate lens. A narrow-bandpass filter is arranged above the upper plate lens. A photosensitive resistor is arranged above the narrow-bandpass filter. The lower plate lens and the upper plate lens are coaxially and oppositely arranged. Fluorescent signals of trace concentration can be captured, the fluorescent solution concentration can be conveniently and rapidly measured through the fluorescent characteristics of a fluorescent agent, and sensitivity is high. The indoor detecting probe is small in size, stable in structure, low in price, high in detection precision and particularly suitable for low-concentration fluorescent solutions, can rapidly detect fluorescent diluent concentration, and can adapt to detection of concentrations of various fluorescent agents.

The invention relates to an impact vibration test device of top coal gangue and application of the test device. The test device comprises a pedestal, and a shake table device, a support assembly, a coal releasing device and a high speed camera assembly arranged on the pedestal, the shake table device is arranged in the bottom of the support assembly, the coal releasing device is arranged on the support assembly and positioned over the shake table device, and the high-speed camera assembly is positioned in one side of the support assembly and arranged in parallel with the shake table device. Coal gangue particles are placed in the coal releasing device, the coal releasing device releases the coal gangue particles, the coal gangue particles fall on the shake table device successively, the high speed camera assembly obtains an instant image when the coal gangue falls on the shake table device, and a sample of the falling coal gangue and different parameters of the shake table device afterfalling are obtained to implement subsequent data analysis. The test device is ingenious in structural design and less influenced by the external environment, the test feasibility is high, labor is not needed, a test process is accurate with little error, and the popularization value is very high.

The invention provides a plate electrode device for measuring electric characteristics of oil flow. The device comprises an insulating shell and a metal aluminum electrode. An oil passage is formed in the insulating shell. Inwards-sunken grooves are formed on the end faces, where the inner sides of the oil passages are, of the insulating shell. The metal aluminum electrode comprises an upper electrode and a lower electrode. Each electrode comprises a main body and a column body which is extended upwards from the main body. Through grooves are filled with the column bodies of the metal aluminum electrode. The grooves are filled with the main bodies of the metal aluminum electrodes. An oil paper sample is positioned in the oil passage, and is fixed by oil paper fixing parts. The plate electrode of which the lower electrode is adjustable in height is embedded into the closed insulating shell, the position of the oil paper sample in the oil passage is adjusted by the oil paper fixing parts, and external accessories are matched, so that alternating current voltage, direct current voltage and alternating current-direct current voltage can be applied, an interval between the two electrodes is adjustable, the position of the oil paper sample in the oil passage is adjustable, and experimental researches on the electric characteristics of the oil flow of a transformer are diversified and targeted.

The invention relates to the field of rock mechanics experiments, in particular to a multi-dimensional dynamic and static combined loading rock mechanics experimental device, including a workbench, an adjustment mechanism, a one-dimensional horizontal dynamic and static combined loading mechanism, a lifting mechanism and a two-dimensional dynamic and static combined loading mechanism, and a one-dimensional horizontal dynamic and static combined loading mechanism. The combined dynamic and static loading mechanism includes a dynamic loading component and a static loading component, and the two-dimensional dynamic and static combined loading mechanism includes a moving component, a horizontal loading component and a vertical loading component. The invention can carry out experiments in different dimensions by controlling the combined work of the dynamic load component, the static load component, the horizontal load component and the vertical load component, and adjust the one-dimensional horizontal dynamic and static combination through the adjustment mechanism, the lifting mechanism and the moving component. The location of the loading mechanism and the two-dimensional dynamic and static combined loading mechanism facilitates fixing and experimenting on rocks of different sizes, and further improves the experiment.

The invention relates to an experimental device and method for detecting the preference of an animal to a static electric field direction. The device comprises an operation display panel, a signal controlling and processing unit, an image obtaining and processing unit, a voltage generating unit and an electric field exposure unit. The signal controlling and processing unit is connected with the operation display panel, the image obtaining and processing unit and the voltage generating unit, the electric field exposure unit is connected with the voltage generating unit, and the image obtaining and processing unit is arranged above the electric field exposure unit; in an experiment, the voltage generating unit sends out a voltage signal to be applied to the electric field exposure unit according to an instruction of the operation display panel, the image obtaining and processing unit obtains information of movement images of the animal in the electric field exposure unit and feeds back the information to the signal controlling and processing unit, and the information is displayed in the operation display panel. Compared with the prior art, the device and method have the advantages of being simple to operate, high in safety, capable of generating electric fields in different directions and sizes, visual in result and the like.

The invention relates to a multifunctional integrated special electrostatic spinning machine for a laboratory. The machine comprises a laboratory operating desk, an injecting mechanism, a receiving mechanism and an injecting angle adjusting mechanism; the injecting mechanism comprises a horizontal position adjusting unit and an injecting barrel; the injecting angle adjusting mechanism comprises a mounting frame, an adjusting supporting frame, adjusting vertical frames and angle adjusting hand wheels; the front end of the adjusting supporting frame is mounted on the mounting frame; the injecting mechanism is mounted on a bottom plate of the adjusting supporting frame; the adjusting vertical frames are symmetrically mounted at two sides of the adjusting supporting frame; gears which are engaged with arc-shaped adjusting holes in the adjusting vertical frames are mounted on two side plates of the adjusting supporting frame; the gears move in the arc-shaped adjusting holes through the angle adjusting hand wheels mounted on the outer sides of the gears; the receiving mechanism is composed of a receiving roller and a receiving plate. The multifunctional integrated special electrostatic spinning machine for the laboratory has the advantages that the injecting position and angle can be adjusted; the injecting materials of different physical performances apply; the experiment cost is small, the scientific layout of the laboratory is realized, and various receiving modes are brought.