293 results about "Balance test" patented technology

An automatic gain control device for an electronic endoscope is provided and comprises a controllable gain amplifier, an A / D converter, a histogram circuit, and a CPU. The controllable gain amplifier amplifies image signals from an imaging device. Amplified image signals from the controllable gain amplifier are input to the A / D converter. A histogram of the amplified image signals from the controllable gain amplifier is produced by the histogram circuit when an image taken in a white-balance test accessory is taken. By using the CPU, the gain of the controllable gain amplifier is adjusted in accordance with the determination of whether a saturated pixel exists for signals in the tolerance range of the A / D converter, so that a linear region of the image signals from the controllable gain amplifier substantially coincides with the tolerance range.

The invention discloses an energy saving method for a circulating water system. The method comprises the following steps: firstly, detecting duty parameters of the current operation of the system andparameters of related devices; then, in accordance with the principle of economic operation of the circulating water system, creating a standard for the balance test and the calculation of the systemenergy by starting with a circulating water pump group, a pipe network, a heat-exchange device, a refrigeration device, a cooling tower and the like, analyzing the use efficiency of the system energy,evaluating the current use efficiency index of the system energy, and finding out the cause for the high energy consumption of the system; finally, by combining production process requirements, accurately finding out the optimum operating point where the devices are matched with the liquid transportation, and giving an optimum solution for the process energy of the system so as to achieve the purposes of high efficiency and energy saving. By detecting and analyzing the circulating water system, the invention provides a comprehensive, systemic and thorough energy saving method for the circulating water system.

There is provided herein a system and method for performing a balance evaluation that utilizes a hand held accelerometer that measures upper body compensatory and correctional movement. Instead of testing movement in the waist or lower extremity as is commonly done, the instant invention measures thoracic trunk sway to estimate an individual's balance via positional change algorithms. By holding the measuring device to the chest and performing one or a variety of balance tests, the instant invention can determine the amount of sway in the trunk without attached or fixed monitors, which presents a novel approach to assessing postural sway above the center of mass.

The invention discloses a dynamic balance testing method for a rotatable part, which is used for testing dynamic balance of the rotatable part on a testing device, wherein the testing device comprises a three-shaft air bearing table, a gyroscope and an XPC computer. The method includes: testing static unbalance amount of the rotatable part to obtain the size and direction of the static unbalance amount of the rotatable part; correcting angular speed zero signals; and testing even unbalance amount of the rotatable part. The method solves the problems of correctness testing and robustness testing in balance test of the integral rotatable part, and has the advantages that dynamic balance of the rotatable part is improved while attitude disturbance by the rotatable part is reduced.

The invention relates to a test method of a whole automotive electric balance. The test method comprises the following steps of: measuring voltages and currents of an automotive storage battery, a power generator and automotive electrical components by using a data acquisition unit and a current sensor; measuring an electricity quantity of the storage battery by using a storage battery tester; during dynamic electric balance test, discharging the electricity of the storage battery until the electricity quantity is 50 percent of a rated capacity before the test to make the automobile in a running state, testing for 4 to 5 hours, and testing whether the whole automobile is in the dynamic electric balance according to the variation of the electricity quantity of the storage battery before and after the test or an average current ratio of a charging current to a discharging current of the storage battery; during static electric balance test, measuring a static current, a lowest starting capacity, a general available capacity and a self-discharging current of the storage battery, and obtaining a static parking time period of the automobile by calculation so as to realize the test of the static electric balance.

A human balance testing and training system may comprise: a mobile communication device comprising: (1) sensors; (2) a display unit; (3) an input unit; (4) an evaluation subsystem for evaluating balance capabilities of a human subject utilizing data collected when the human subject is performing one or more balance evaluation exercises, the data including data received from the sensors; (5) an expert subsystem for prescribing an exercise plan; and (6) a training subsystem for maintaining an exercise plan including one or more balance training exercises for the human subject; wherein the exercise plan is determined by at least one of a balance evaluation by the evaluation subsystem, performance data provided by the training subsystem, and input from a health professional; and wherein the sensors are configured to measure movement of the human subject during performance of one or more of an evaluation exercise and a training exercise.

The invention relates to the technical field of bridge construction, in particular to a balance weighing structure and a balance weighing method for horizontal rotating construction of a box girder bridge. A rotation plate is arranged on the top of a pier and in the center of the bottom of a girder, each truss is arranged below the girder along the length direction of the girder, one end of each truss is fixed onto the top of the pier, and the other end of each truss is erected on the ground through a vertical column; each group of auxiliary weighing systems is positioned between the end, in the length direction, of the girder and the truss at the same end. The method includes: arranging a lower support and an upper support on two sides of the pier, and casting the girder in situ on the rotation plate and the two groups of upper supports; demounting part of the upper supports, and arranging the auxiliary weighing systems between the end of the girder and the lower supports at the same end; performing balance test, and balancing to enable a center of gravity of the girder to be coincided with the center of the rotation plate; rotating the rotation plate to complete construction. The balance weighing structure and the balance weighing method for horizontal rotating construction of the box girder bridge have the advantages that a T structure is adjusted to a balanced state, directly jacking on the rotation plate is avoided, and the bridge is protected from damages owing to low jacking force.

The invention discloses a composite resurfacing welding method for a sink roller and a stabilizing roller used for hot dipping. Substrates of the sink roller and the stabilizing roller are made of a stainless steel iron-based material, and the substrates are provided with cobalt-base alloy working surfaces in a resurfacing welding mode. The method comprises the following steps: preheating the manufactured substrate of the sink roller or the stabilizing roller to 500 to 650 DEG C, and keeping the temperature for 1 to 3 hours; slowly cooling the temperature of the substrate to 250 to 350 DEG C at a speed of 50 to 150 DEG per hour, and forming a cobalt-base alloy material on the substrate in a resurfacing welding mode; performing heat treatment on the substrate to eliminate the stress; and finally performing rough machining, finish machining, balancing test and detection on the sink roller or the stabilizing roller. The sink roller and the stabilizing roller work under the conditions of hot-dip aluminium, aluminium-zinc, zinc-aluminium, zinc, pure aluminium liquid and the like, and have enough performances of resistance to heat, corrosion and wear; the substrates of the sink roller and the stabilizing roller and the working surfaces have high bonding strength; and the service life of the sink roller and the stabilizing roller is improved greatly, and is 2 to 3 times that of the prior product.

Electrobiological stimulation is carried out transcranially by applying high frequency squarewave bursts exhibiting no d.c. term across the cranial region. Such stimulation is commenced employing ramp generators and positive and negative voltage converters which evolve the requisite baseform and burst frequencies having a voltage waveform which is square in nature. Both voltage and current are sensed and subjected to comparator logic in conjunction with predetermined thresholds and windows. Overcurrent detection and overvoltage detection is provided in hard wired fashion to assure rapid shutdown response. D.C offset detection is provided along with waveform balance tests to further assure the safety of the system. Diagnostic procedures as well as therapeutic procedures may be carried out with a system version which provides for the application of a stimulus in conjunction with safety monitoring and controller based development of stimulating waveforms, all of which exhibits no d.c. term. Feed point voltage waveforms and current waveforms are mathematically processed and compared for diagnostic analysis.

The invention discloses a multifunctional balance evaluating and training system which is applied in the field of human body balance capacity training and evaluating, comprises three functional modules namely a data acquisition module, a data processing module and a balance training module and structurally comprises an earth's surface pressure center testing table, an attitude sensor, an armrest frame, a data processing component, an external information displaying component and a pair of VR glasses, wherein the armrest frame is used for preventing a subject from falling down and other accidents and protecting personal safety; the earth's surface pressure center testing table and the attitude sensor acquire the balance data of a human body and transmit the data to the data processing component through wi-fi communication; and based on the human body balance analysis algorithm, the evaluation result and parameters of the human body balance capacity are displayed on the external information displaying component and the pair of VR glasses.The multifunctional balance evaluating and training system comprises three types of working modes namely evaluation, self training and auxiliary training, provides virtual game scenes for the balance test and training of the subject, improves the interestingness of the balance capacity evaluating and training process and is simple in structure, simple and convenient to operate and convenient for popularization.

The invention discloses a satellite dynamic and static balance test and adjustment device, comprising: a satellite body to be tested is fixed on a satellite connection disc. The satellite connecting disk is connected with the plane of the connecting disk of the dynamic balancing machine, and is fixed with positioning pins to form a transitional tooling. The transition tooling can move horizontally in X and Y directions on the dynamic balancing machine. The connecting disc of the dynamic balancing machine is fixed on the plane of the dynamic balancing machine with connecting bolts, and there is an adjusting gasket in the middle. A fixed support is installed on one side of the planar main table of the dynamic balancing machine, and an adjusting screw is arranged on it. The invention also discloses the test and adjustment method of the dynamic and static balance test and adjustment device, adopts the technical scheme of "torque-couple balance method", and achieves the problem of completing the satellite dynamic and static balance test and adjustment at one time, which not only improves the efficiency of test and adjustment Accuracy, and the adjustment time is reduced from 7 days to 2 days.

The invention discloses a flexible DC transmission voltage source converter valve operation test device. The particular technical scheme is as follows: a test power supply is used for charging two sample valve assemblies and an assistant valve group, and a constant DC voltage control strategy is used for enabling voltage of each valve submodule to be distributed uniformly and required test voltage is achieved; a nearest level modulation strategy is adopted to generate test voltage at two ends of the two sample valves, and the two sample valves have the same DC voltage components and AC voltage components with the same amplitudes and different phases; under effects of the test voltage, the two sample valves form a closed-loop power circuit via a test reactor, the test reactor and a sample valve submodule capacitor perform electromagnetic energy exchange in the power closed-loop circuit to obtain test current, and the current contains a power frequency fundamental wave current component, a DC current component and a doubled power frequency loop current component; and the test power supply is used for energy complementation on operation loss of the test circuit, and the assistant valves are used for balancing test voltage fluctuation caused by the power grid.

The invention discloses a method for testing Android application controls. By the method, a developer can conveniently compile a control test case, the overall development time is shortened, and the overall test level is improved. A configuration file is analyzed to find out information such as names and IDs (Identifiers) of all the controls, and different controls are endowed with different test weights to balance test speed and coverage rate. Different controls to be tested are converted into test codes from a template through a python language, and then the test codes are imported into projects for unit test. According to the method, a conventional Android application tester is helped, the workload of the tester is reduced, and working efficiency is greatly improved.

The invention provides a human body static balance testing method and instrument. The method includes: a to-be-tested person stands on a plane, the gravity applied to the plane is borne by the four vertexes, serving as support points, of a square, the gravity data of the four support points are collected and multiple groups of gravity center coordinates are calculated, the average value of the gravity center coordinates is obtained to judge the gravity center deviation direction and amplitude of the to-be-tested person, and accordingly human body balance ability can be judged. The method can also reflect human body gravity center moving trajectories, the human body balance ability can be reflected through the human body gravity center moving trajectories, and the to-be-tested person can visually know own balance ability and balance adjusting directions.

The invention discloses a processing method of a flywheel. The final product flywheel is obtained by turning and milling a workblank, and then performing hot charging and a static balance test on the flywheel and a tooth ring, cleaning and coating oil. The processing method of the flywheel is simple in operation, exquisite in work, and high in accuracy.

The invention relates to an adsorption and desorption / exploitation simulated experimental device and method of shale gas. The device comprises a reference cylinder, a sample cylinder, a constant-temperature box, a piston type middle container, a valve, a high-precision plunger pump, a data acquisition system, a valve, a pressure sensor and a pressure sensor. A constant-pressure exploitation method comprises the following steps: carrying out experiment pre-treatment; setting the high-precision plunger pump into a constant pressure mode, setting pump pressure as an experimental pressure value, and acquiring data of the high-precision plunger pump in real time during withdrawal of the pump; recording the pressure P' when a pressure value of the sample cylinder reaches the experimental pressure value set in the pump and both of the pressure values are balanced; carrying out a plurality of pressure point balancing tests. A constant-yield exploitation method comprises the following steps: carrying out experiment pre-treatment; setting the high-precision plunger pump into a constant current mode, setting gas-production experiment flow velocity in the pump, and acquiring the pressure P' of the sample cylinder and the data of the pump in real time; stopping the operation of the pump when the pressure of the sample cylinder is reduced to an experimental setting value; carrying out a plurality of gas-production flow velocity simulated tests. According to the device and the method, the reliability of the result of the exploitation simulated test is ensured.

The invention relates to the technical field of games, in particular to a game map balance test method, a game map balance test device, equipment and a storage medium. The method comprises the steps of acquiring a target game map to be subjected to balance testing, acquiring an artificial intelligence set, wherein the artificial intelligence in the artificial intelligence set points to different decision models, and the different decision models are determined by machine learning training based on different neural network models and / or different excitation functions; simulating a game player to play a game by using the target game map by utilizing the artificial intelligence in the artificial intelligence set; obtaining game data of the artificial intelligence body for playing a game by using the target game map; generating an income thermodynamic diagram of the target game map according to the game data; and analyzing the income thermodynamic diagram, and determining the balance of the target game map. According to the game map balance test method, the development and verification period of the game map can be shortened.

The invention discloses a parameter test method for a panoramic camera. The method comprises the steps of: horizontally placing a preset fisheye lens of the panoramic camera at a central position of the hollowed upper part of the tops of a preset optical imaging center test container, a splicing test container, an exposure test container and / or a white balance test container for shooting to obtain a corresponding fisheye image; and testing the optical imaging center parameter, image splicing parameter, image exposure parameter and / or image white balance parameter of the panoramic camera according to the corresponding fisheye image. The invention further discloses a parameter test device for a panoramic camera. The method and the device improve the convenience of testing the parameters of the panoramic camera to ensure the quality of the panoramic camera.

The invention provides a combined machine for the assembly, disassembly and balance test of tires as well as a method for manufacturing and using the combined machine, relating to the technical field of assembly, disassembly and test of automobile tires and applying to the assembly, disassembly and test of automobile tires. The tire balance test machine comprises a cabinet (1B), a data input device (1C) located in the upper cover of the cabinet, and a tire mounting shaft assembly (1A), and the machine is characterized in that the cabinet (1B) is provided with a gap (1D) located in a three-dimensional spatial position where the tire balance test machine is placed in adjacent three-dimensional spatial position of the tire assembly / disassembly machine, and the gap (1D) is internally provided with a shovel-arm assembly (2D) of a tire-pressing shovel (2B) at one side of the base (2A) of the tire assembly / disassembly machine. The invention has the advantages that the jointly-occupied area of the tire assembly / disassembly machine and the tire balance test machine is reduced, the distance for carrying tires is shorter, and the structure is compact and reasonable.

The invention is concerned with a balance test run gearing, relating to a platform, a turntable, two workbenches, an inner revolving seat, a driving source, a on-off piece and a driving group. The turntable is running on the platform and the workbench with paw is symmetrically running on the turntable. The inner revolving seat is running on the platform and the driving source drives and connects with the transmission gear. The on-off piece connects with inner revolving seat in running and the driving group drives the on-off piece to separate of match with the transmission gear. When the turntable revolves, it makes the workbench to match and fix with the inner revolving seat tightly, and the driving group drives the on-off piece to separate the transmission gear. When the paw holds the workpiece tightly, the driving group drives the on-off piece to match with the transmission gear, and the driving source drives the workbench to revolve to test the balance of the holding state to paw.

An automatic analysis device and an analysis method and analysis system therefor. The automatic analysis device comprises an incubation unit (110). When analyzing a sample under test, the rotation of the incubation unit (110) is controlled according to a set trans-shipment cycle (201), wherein each trans-shipment cycle comprises at least one fixed trans-shipment pause time period progressing according to a first-type trans-shipment distance, and at least one adaptive trans-shipment pause time period progressing according to a second-type trans-shipment distance; when the incubation unit (110) is controlled to trans-ship according to the fixed trans-shipment pause time period in the trans-shipment cycle, in the stop time period of the fixed trans-shipment pause time period, a fixed operation capable of being executed in the fixed trans-shipment pause time period is executed (204); and when controlling the incubation unit (110) to trans-ship according to an adaptive trans-shipment pause time period in the trans-shipment cycle, the incubation unit is controlled to trans-ship and stop at a resource station having a function of executing an adaptive operation, and the adaptive operation is executed (207). The present invention can balance test flux and analysis performance.

The invention discloses a self-balancing test device and a method for directly testing axial tensile strength of early-age concrete. The testing device consists of an outer framework, an inner template, a dowel bar, a hydraulic hollow jack, a hollow load sensor, a ball hinge, a lock nut, a polyfluortetraethylene plate, a hydraulic oil pump and a resistance strain gauge. When testing, a side template in the inner template is removed, and an end template in the inner template and a side plate in the outer framework which are fixed are loosened; the dowel bar is fixed in the center of the end template in the inner template; the hydraulic oil pump drives the hydraulic hollow jack; and the end template and the hydraulic hollow jack move together to break a concrete test piece to test the axial tensile strength of the early-age concrete. The testing device has simple structure, convenient assembly and disassembly and less required materials and equipment, and is suitable for scientific research and testing the axial tensile strength of the early-age concrete in construction site.

The invention discloses a white balance adjustment method of a display system and a display system. The white balance adjustment method comprises steps of operating a white balance test module integrated in the display system; reading a test special map stored in the display system using a white balance test unit for performing a white balance test, so as to adjust white balance parameters of the display system to be within a preset range; and updating and sending the adjusted white balance parameters to all signal input channels of the display system. The technical scheme of the invention is characterized in that testing is achieved through the white balance test unit integrated in the display system during white balance adjustment, so as to replace a test computer system; and the white balance test unit is used to directly control the map required in play for adjusting white balance, and a test special signal generator is replaced in map generation, so that the cost of white balance adjustment is reduced, and the stability of white balance adjustment is improved.

The invention discloses a static balance test method applied to a gyroscope position marker spindle. A horizontal axis angular position rotary table is used for mounting and clamping a gyroscope position marker to be tested, any one axis to be tested of the gyroscope position marker is parallel to the horizontal axis of the rotary table by adjusting direction of a mounting fixture, a measurement and control system drives the tested axis to complete sine small angle vibration at each locking angular position of the rotary table, value of a static unbalance can be solved by virtue of integration on measured quantities in a driving current period of the tested axis, and position of the static unbalance can be obtained by observing the driving current and an angular position signal and combining a corner of the horizontal rotary table. The concrete test process comprises the following steps of: step one, measuring torque constant of the tested axis; step two, carrying out static balance test on the gyroscope position marker spindle; and step three, selecting the rest test axes of the gyroscope position marker and carrying out test, after the tested axis is determined, repeating the step one and the step two, and finally completing test on three tested axes, namely an outer annular axis, a middle annular axis and an inner annular axis, thus the test method disclosed by the invention is finished.

The present disclosure is generally directed to a simulated aircraft engine (12) accelerometer apparatus, system and method that that generates aircraft engine (12) simulator outputs. An accelerometer signal simulator (320) receives aircraft engine (12) simulator outputs and generates accelerometer signal simulator (320) outputs, and an accelerometer waveform generator (350) receives the accelerometer signal simulator (320) outputs and synchronizes at least one accelerometer signal simulator (320) outputs to a reference timing signal from one of the aircraft engine (12) simulator outputs. The simulated accelerometer (300) further includes a filter section (372, 374, 376 and 378) that receives and filters noise from the plurality of accelerometer waveform generator (350) outputs to generate a plurality of filtered accelerometer waveform generator (350) outputs, a mixer (380) that receives and combines each of the plurality of filtered accelerometer waveform generator (350) outputs to generate a single filtered accelerometer waveform generator (350) output, and a charge converter (382) that receives and converts the single filtered accelerometer waveform generator (350) output to a current charge vibration simulation output.

The invention discloses a propeller dynamic balance tester. The propeller dynamic balance tester comprises a base, supporting rods which are detachably arranged on the base, fixing brackets which are detachably connected onto the supporting rods, balance test assemblies which are arranged in the hollow structures of each fixing bracket, a balance connection mechanism which is erected on the balance test assemblies and is used for fixing a propeller to be tested; the positions of the fixing brackets on the supporting rods are adjustable; and one end of the balance connection mechanism is provided with a diameter-variable ring; and in a test, the propeller hub hollow part of a self-locking type propeller sleeves the diameter-variable ring. With the propeller dynamic balance tester adopted, the self-locking type propeller can be tested. The propeller dynamic balance tester has the advantages of simple structure and low cost.

The invention discloses a turbine rotor balance test clamp and a balance test device. The turbine rotor balance test clamp is used for clamping a turbine rotor assembly on a balance machine for a balance test, and a force application device exerts pressure on the turbine rotor assembly to enable the turbine rotor assembly to reach preset pressure in the working state of an engine; the pressure is kept stable and not reduced by means of a locking device, and then the force application device is removed; the balance machine is used for carrying out the balance test on a turbine rotor. According to the turbine rotor balance test clamp and the balance test device, the actual stress condition of the turbine rotor during operation of the engine is simulated so that balance data of the turbine rotor can be accurately measured through the balance machine, and the technical problems that a balance test clamp in the prior art cannot obtain true and accurate balance data is solved.

The invention relates to a comprehensive test platform for running attrition test of box components and for static balance test of wheel and shaft parts. The comprehensive test platform comprises a platform with an upper reference plane, a static balance test device, a running attrition test device, an oil adding and pumping device and T-shaped grooves provided arranged on the platform at intervals. The static balance test device is composed of two core shaft supports, core shafts, a pair of rollers connected with each core shaft support, wherein the core shafts are arranged on two pairs of rollers on both ends. The running attrition test device includes a power device, a transmission mechanism and two press plates, wherein, the power device is connected with the transmission mechanism, and the transmission mechanism is connected with an input shaft of a box body to be tested. The oil adding and pumping device comprises an oil tank, a motor and a gear pump, wherein, the suction inlet of the gear pump is connected with the pipe line of the oil tank; the exit hole of the gear pump is connected with a hose joint and an oil nozzle. All fixed elements on the platform are connected with the platform through T-shaped screws. The invention has the advantages of accurate testing, good generality, good practicality, simple structure, convenient fabrication and low cost.

The invention provides a processing method of a slender axle. The method comprises the following steps: step 1, aligning workpiece to be processed; step 2, processing a second end of the workpiece to be processed; step 3, fashioning the second end of the workpiece to be processed; step 4, processing middle part of the workpiece to be processed; step 5, turning around the workpiece to be processed; step 6, processing a first end of the workpiece to be processed; step 7, fashioning the first end of the workpiece to be processed; and step 8, polishing the whole body. Through processing the two ends of the workpiece to be processed step by step, the slender axle, which better meets requirements of surface roughness, beating test, static balance test and dynamic balance test, can be preferablyproduced. Because beating test for the workpiece to be processed is implemented twice during processing period, breaking edge phenomenon of the workpiece to be processed is reduced due to vibration and rejection rate of processing the slender axle is also decreased.

A multifunctional shafting test device based on planetary transmission, comprising: a test assembly, a vibration isolator, a stand, and a base. The test components include: drive motor, input coupling, dynamic balance test disk, sliding coupling, torsional vibration test tooth disc, test load, first rotating shaft, second rotating shaft; the motor shaft of the driving motor is connected to the input end. The coupling at the input end is connected to the test part through the rotating shaft; the rotating shaft between the coupling at the input end and the test load is equipped with a dynamic balance test disc, a torsional vibration test tooth disc, a dynamic balance test disc and a torsion test load. A sliding coupling is installed between the vibration test tooth discs through the first rotating shaft and the second rotating shaft, and the sliding coupling is installed on the table body through the bracket; the test components are installed on the bench, and a vibration isolator. The device of the invention is easy to reorganize and can realize the multifunctional test of the vibration characteristics of the shafting device based on the planetary transmission.