2407results about How to "Meet the test requirements" patented technology

An automobile catalytic converter that utilizes the energy of the exothermic reactions that take place in the catalysis substrate to produce electrical energy with a thermoelectric generator. On vehicle cold start, the thermoelectric generator is used as a heat pump to heat the catalyst substrate to reduce the time to catalyst light-off. In this way, the catalytic converter comes up to operating temperature more rapidly, reducing the amount of pollutant emissions at vehicle start-up.

The invention relates to an online fracturing test vehicle. The online fracturing test vehicle comprises a chassis, a shelter, a back protection device, a skirt edge box, a heating system and an automatic leveling device, wherein the shelter is mounted at the upper part of the chassis; the back protection device is mounted at the back end of the chassis; the skirt edge box and a generator are mounted at the side of the chassis; the automatic leveling device is mounted at four corners of the bottom of the chassis; the heating system is mounted at the top of the chassis; the shelter is integrated with an experiment instrument for a fracturing fluid test and a support agent analysis evaluation test; and the experiment instrument for the fracturing fluid test and the support agent analysis evaluation test is mounted on the chassis provided with the shelter, so that the online test can be performed on spot, the detecting accuracy and preciseness can be improved, and the detecting efficiency is improved.

The invention relates to a high-performance EEG signal detection circuit provided with a brain-machine interface. The detection circuit comprises a pre-amplifier circuit and a post-amplifier circuit, wherein the pre-amplifier circuit consists of a first-level amplifier circuit and a second-level amplifier circuit which are connected by a high-pass filter circuit; and the pre-amplifier circuit is connected with the post-amplifier circuit by a 50Hz trap circuit and a low-pass filter circuit. The detection circuit has the characteristics of high input impedance, high common mode rejection ratio, high gain, low noise and low drift, and has the advantages of simple structure, strong capacity of resisting disturbance and good reliability. The invention can be used as a high-performance EEG signal detection circuit, and lay a foundation for realizing the brain-machine interface.

The invention provides a rotary type high-accuracy automatic sorting device for internal thread detection of a small-sized revolved body workpiece, and an automatic sorting method adopting the device. The device comprises a loading channel, a first vision detection station, a turnover mechanism, a thread go gauge detection mechanism, a second vision detection mechanism, a thread no-go gauge detection mechanism, a high-accuracy rotary index plate, a discharging mechanism and a base. According to the rotary type high-accuracy automatic sorting device for internal thread detection of the small-sized revolved body workpiece, the equipment adaptability is strong, a user can realize self-defined classification, and multi-station parallel detection for multiple workpieces can be realized, therefore, the detection efficiency is greatly improved.

The invention discloses a large bidirectional dynamic/static direct-shearing machine for coarse-grained soil contact interface tests. The machine comprises a measuring and controlling unit (1), a hydraulic servo unit (2), a loading unit (3) and a soil sample preparing unit (4). The loading unit (3) comprises a Z-direction vertical loading frame, an X-direction horizontal loading frame and a Y-direction horizontal loading frame, the three frames are perpendicular to each other, and the three frames all have independent loading ability. The hydraulic servo unit (2) comprises an X-direction horizontal loading actuator (311), a Y-direction horizontal loading actuator (312) and a Z-direction vertical loading actuator (31). The measuring and controlling unit (1) is in separate communication connections with three electro-hydraulic servo loading cylinders of the hydraulic servo unit (2). The large bidirectional dynamic/static direct-shearing machine is used in coarse-grained soil shearing performance tests, coarse-grained soil shearing performance tests on reinforced contact interface and coarse-grained soil shearing performance tests on concrete interface under the dynamic/static loading effects of simulation traffic loading.

The invention relates to a triaxial rheological test process and method for a hard and crisp rock. The method comprises the following steps of: 1, determining an instantaneous triaxial compressive strength of the hard and crisp rock and loading by adopting a triaxial rheological mode; 2, determining the size of a confining pressure of a test and test loading grades and adopting a loading mode of circularly loading and unloading; 3, sealing a rock sample by using a heat-shrinkable sleeve and a stainless steel tube hoop so as to prevent oil from leaking; 4, applying the confining pressure to a set value, applying a first stage of axial load after the confining pressure is stable, and reasonably setting a time interval of recording data; 5, after the deformation is stable, continuously applying axial stresses in a grading mode until the test is completed; and 6, determining the long-term strength of the rock by adopting a residual strain method. In the invention, a reasonable value of the confining pressure is provided so as to furthest avoid deformation mutation caused by local fracture of the rock; the test loading grades are reasonably determined so as to not only obtain a threshold value of the creep stress of the rock, but also obtain an accelerated creep curve; and the scheme of determining the long-term strength of the hard and crisp rock by using the residual strain method of the loading and unloading rheological test is provided.

A ultrasonic wave detection device of petroleum pipeline is prepared as setting ultrasonic probe at front end of robot body, arranging a rubber disc at tail end of robot, forming robot body by front unit and back unit as the two being connected by universal couple, applying driven wheels as traveling mechanism of robot and setting these wheels on front unit and back unit separately. Its dynamic-detecting method is also disclosed.

The invention provides an arc-shaped glass panel defect detecting method used for a curved surface electronic display screen, and belongs to the optical three-dimensional measurement technology field. A structured light illumination technology is used for an electronic display screen glass panel defect detecting field, and a defect of a conventional detecting method of inability of carrying out the high precision detection of the arc-shaped edge of the glass panel provided with the arc-shaped edge having large curvature is overcome, and then the glass panel provided with the arc-shaped edge is used for the high precision detection of the defects of the arc-shaped edges of the double sides and the middle planar part of the glass panel. The arc-shaped glass panel defect detecting method has an advantage of rapid, high-precision, non-contact, and high-sensitivity detection.

The invention discloses an automotive body in white torsion rigidity test system. The system comprises: a constraint subsystem and a loading subsystem. The constraint subsystem comprises: a front suspension rack and a rear suspension rack. The loading subsystem comprises at least two power take-offs and a loading device. Through using an innovative improved design, the test system can carry out adaptive adjusting during a test process so that generation of stress can be reduced, versatility is good and test needs of different kinds of vehicle types can be satisfied. The invention also discloses a method for carrying out an automotive body in white torsion rigidity test by using the above test system. By using the method, the automotive body in white can be easily and rapidly leveled and ideal test data can be acquired. The test method of the automotive body in white torsion rigidity can be substantially improved. Compared to the other current test method, innovation improvements are realized in many aspects, such as the constraint processing, a position and a mode of load applying, collection of the test data and determination and the like.

The invention discloses a rolling linear guide friction force dynamic detection device and detection method thereof. The device comprises a bed body, a servo motor, a worktable, a mother lead screw, arolling linear guide, a slide block, an S type tension sensor, a forward limit switch, a reverse limit switch, a motion control card, a control panel and the like; based on the detection method of the device, firstly parameter is set, loading and running-in are carried out on the linear guide to be detected, then dynamic measurement is carried out on friction force and the measured data is analyzed, and finally the test data and result is saved and printed, qualification decision is given and measurement process is finished. The method of the invention can display distribution situation of dynamic measurement data in real time by a computer, and maximum, minimum and mean value thereof are calculated and compared with design standard of corresponding product and then are judged to be qualified or not; compared with the existing static detection method, the method has the advantages of high efficiency, high stability and high reliability.

The invention discloses camera detecting equipment, which comprises a base, a support, a test graph fixing frame and a camera fixing bracket, wherein the support is arranged on the base and can move on the base along the Y-axis direction; the test graph fixing frame is used for fixing a test graph, arranged on the support and can move on the support in the Z-axis direction; the camera fixing bracket is arranged on the base; and a camera to be detected is arranged on the camera fixing bracket, so that the camera is opposite to the test graph arranged on the test graph fixing frame. The invention also discloses a camera detecting system. The equipment provided by the invention can be fixed on a worktable, and related test parts can be adjusted along a screw rod and are stable so as to assist a computer to detect and calculate the central offset and rotation angle of an image shot by the camera and meet the higher level requirement on the quality of the shot image.

A relay protection stable-state digital dynamic simulation test system comprises a graphic data memory module, a power network modeling module, a parameter setting module, a failure setting module, a failure data calculation module, a failure analysis module and a relay protection simulation module, wherein, the graphic data memory module is used to store the graphic model of various elements of a power system and various failure calculation models; the power network modeling module, according to the structure of the to-be-detected power network, is used to select elements and corresponding failure calculation model and form the power network topological structure of the failure calculation models; the parameter setting module is used to set the concrete parameters of each element of the established failure calculation models; the failure setting module is used to set the failure types and parameters of the failure calculation models; the failure data calculation module, according to the network topological structure of the power network, is used to calculate the parameter after failure occurs, i.e. the current of each subcircuit, the voltage of each busbar and the branching factors among subcircuits. The invention realizes real simulation of various failures in power system, thereby having strong practicability.

The invention discloses an intracranial and cervical joint radio frequency coil device for a magnetic resonance imaging system. The device comprises a base, an intracranial upper coil and a cervical upper coil in detachable combination, wherein the intracranial upper coil and the cervical upper coil are formed by packaging a coil circuit by deformable flexible polyethylene foams; a cavity of which the upper end and the cervical side are provided with openings is formed on the base; and the coil circuit is arranged around the cavity. The device has the advantages of weight far lighter than that of a conventional united coil made of hard polycarbonate plastic, convenient movement, smaller distance to a human body through the deformable coil, better imaging quality, respectively independent use or combined use of three parts of coils, and capacities of replacing a common coil, meeting detection requirements on common parts of all MRI and saving economic input.

The invention provides a method for quickly detecting melamine in a milk sample based on nanogold, which aims to solve the problems of the high operation requirement, complex detection process, high cost, long time, incapacity of meeting a lot of food test requirements and the like on the detection of the melamine. The method comprises the following steps: performing pretreatment on the milk sample and adding the pretreated milk sample into a nanogold solution; and adopting visual colorimetry to compare the color of the nanogold added with the sample solution with the color in a color standard series and then qualitatively judging whether the milk contains the melamine or not. The color standard series is prepared through the following steps: adding the pretreated milk samples in an identical volume and containing the melamine of different concentrations into the nanogold solution, wherein the content of the nanogold in each sample is consistent; and after color development reaction, obtaining the color standard series. The method has the advantages of low cost, simple and convenient operation and capacity of visually and quickly detecting the melamine in the milk.

An ultrahigh pressure true three-dimensional non-uniform loading/unloading and steady pressure model test system in which an ultrahigh pressure true three-dimensional non-uniform loading/unloading device is arranged in a combined bench counterforce device and used for carrying out ultrahigh pressure true three-dimensional loading/unloading on a test model, and an intelligent hydraulic loading/unloading and steady pressure numerical control system is connected with the ultrahigh pressure true three-dimensional non-uniform loading/unloading device via a high-pressure oil pipe; the ultrahigh pressure true three-dimensional non-uniform loading/unloading device is controlled in a digital servo manner via an input instruction of the intelligent hydraulic loading/unloading and steady pressure numerical control system to carry out ultrahigh pressure true three-dimensional gradient non-uniform loading/unloading and steady pressure control; an automatic model displacement test system automatically acquires the displacement of any part inside the model; and a high-definition multi-probe peeping system observes a cavern excavation deformation and failure process dynamically in real time.

A ship model four-freedom-degree rotating arm test device comprises a rotatable rotating arm and a measuring mechanism between the rotating arm and a ship model. The measuring mechanism comprises a middle base fixedly connected with a rotating arm trailer, heaving rods penetrate through the middle base and can vertically slide, a linear displacement sensor is installed on a base plate at the lower ends of the heaving rods, a counterweight is connected to the upper end of the base plate through a steel wire rope, a four-component force measuring sensor is connected to the lower end of the base plate and fixedly connected with a longitudinal swing base, the longitudinal swing base is rotationally provided with a longitudinal swing shaft connected with a rotational potentiometer, the longitudinal swing shaft is fixedly connected with a middle frame, and the middle frame is connected with a heeling angle adjusting mechanism. The invention further provides a test method, wherein according to the method, water power in the longitudinal direction, water power in the transverse direction, water power during rolling and water power during yawing are measured through rotating arm tests under five test working conditions, and then the water power derivative is worked out through corresponding maneuvering motion equations. According to the ship model four-freedom-degree rotating arm test device and the test method, trim angle measurement and heaving displacement measurement of the ship model and water power measurement of the ship model in four motion directions can be achieved, and the handling quality of a ship in the four motion directions can be forecasted.

The invention provides a pressure stability control device supplied with constant voltage by a propellant, in particular comprising a high-pressure air supply device, a supercharging device, a control gas device, a blowing device and a liquid propellant supplying device. The high-pressure air supply device supplies high-pressure air. The supercharging device supercharges a propellant storage tank to extrude the propellant to enter a feeding pipeline, and a supercharging buffer tank can stabilize the pressure of pressurized gas. The blowing device is in charge of filling the clearing of pipeline propellant. The control gas device provides control gas for the system. The pressure of pressurized gas can be always kept constant by the pressure stability control device supplied with constant voltage by the propellant, thereby continuously supplying liquid propellant in testing, and satisfying the principle of slow supercharging and preventing collapse of the feeding pipeline due to too fast pressurizing in pressurization.

The invention discloses a probe compound for identifying fluorine ions by combining spectral detection and bare eyes. The compound is a new compound formed by using excited state proton transfer compounds as a matrix and by silylation. The compound can be used for detecting fluorine ions, in particularly detecting fluorine ions in a water environment. Infiltrated test paper prepared by the compound is quick and convenient, the detection limit is low, and according to different excited wavelengths, two modes, namely an intensity identification mode and a chromaticity identification mode, can be selected respectively for better detection by an instrument and bare eyes.

The invention relates to a motor test system, which comprises a test controller, an inverter, a power tester, a rotating speed and torque sensor, a direct-current voltage stabilization power supply cabinet and a personal computer (PC). The invention also provides a method for testing a motor for an electric vehicle based on the test system. According to the test method, a whole rack test system is controlled through controller area network (CAN) communication; a rotating speed and torque measurement command is sent based on standard test data; rotating speed and torque data is fed back in real time by the rotating speed and torque sensor; and the feedback data is compared with standard data to judge whether the external characteristic of the motor is qualified. By the test system and the test method, the external characteristic of the tested motor can be detected accurately and efficiently, so that the delivery quality of the motor can be guaranteed; furthermore, the test process is high in automation degree and precise in test; and the method is easy to operate and low in cost, and has very wide application prospect.

The invention relates to a nondestructive detection device for tunnel linings. The nondestructive detection device comprises universal casters with brakes, a worktable, a distance fine adjustment assembly, a height adjustment assembly, an automatic knocking assembly and a peripheral upper computer. The universal casters are mounted under a base of the worktable. The nondestructive detection device can be fixed onto a railway engineering vehicle by the aid of steel pipes and scaffold right-angle fasteners when about to work, the railway engineering vehicle and the carried nondestructive detection device can be dragged by a locomotive to move along tunnels, the tunnel linings can be knocked by the automatic knocking assembly of the nondestructive detection device, knocking sound waves can be converted into electric signals by a microphone, knocking sound signals can be acquired and analyzed by the upper computer, tunnel health information of structural parameters, cavities and the like of the tunnel linings can be obtained, and accordingly the tunnel linings can be nondestructively detected. The nondestructive detection device has the advantages that the nondestructive detection device is in a modular design and is convenient to assemble and disassemble, and requirements on 'skylight time' and requirements of detection on different tunnel linings can be met; the nondestructive detection device is easy to operate and high in automation degree, detection efficiency and precision and cost performance, conditions of the tunnel linings can be quickly judged after the tunnel linings are detected, and the like.

The invention discloses an SIM card compatibility automated test method and an SIM card compatibility automated device. The SIM card compatibility automated test method comprises the following steps:step01: a computer, an SIM card set and a mobile phone are connected; step02: the computer sends out an instruction to connect one SIM card of a SIM card set and a mobile phone signal, wherein, the SIM card is defined as a working SIM card; step03: the computer sends out an instruction to test whether the working SIM card and the mobile phone are compactable or not; step04: the computer judges weather all SIM cards in the SIM card set finish the test or not; if all the SIM cards in the SIM card set finish the test, step 06 is executed, and otherwise, the step 05 is executed; step05, the computer sends out an instruction for connecting a next SIM card of the working SIM card in the SIM card set and the mobile phone signal, and the next SIM card is defined as a working SIM card, and then thestep 03 is executed; and step06: logout. The invention has the advantages that automated test can be realized.