790results about How to "Avoid affecting test results" patented technology

The invention discloses a vehicle automatic-drive switching device and method based on distracted driving behavior distinguishing. The device comprises a detection unit and a control unit. The input end of the detection unit is connected with a speed sensor, a three-axis acceleration sensor, a steering wheel turning angle sensor, a steering wheel gripping force sensor, a touch sensor, a ranging sensor, a heart rate sensor, a vehicle data recorder and a GPS. The control unit receives significant variable data and time data of a timer, establishes the relation between vehicle automatic-drive probability dependent variables and distracted driving behavior index independent variables on the basis of a logistic regression model, and works out the vehicle automatic-drive probability. Whether given conditions are met or not is judged through a judging condition I and a judging condition II of a condition judging program, if the judging condition I is met, an automatic early-warning control switch is triggered, and if the judging condition II is met, a vehicle automatic-drive control switch is triggered.

The invention discloses a cylinder type soil sampling device for detection. The cylinder type soil sampling device comprises a transverse plate and a sampling cylinder, wherein a spiral shaft is arranged between a top plate and the transverse plate; a bearing is arranged at the side wall of a lifting rod; a slide sleeve is arranged on the spiral shaft, and is connected with the spiral shaft in a thread matching way; the outside wall of the slide lifting rod is connected with the inner wall of a rotary sleeve pipe through a spline; the interior of the side wall of the sampling cylinder is provided with an annular cavity which is coaxial with the sampling cylinder; an annular press plate is arranged at the bottom part of the annular cavity; a plurality of inclined through holes are formed inthe inside wall of the annular cavity; a guide rod is arranged in each inclined through hole, the upper end of each guide rod is connected with the inclined surface of an annular press plate througha slide mechanism, and the lower side of the annular press plate is connected with the bottom wall of the annular cavity through a reset spring. The cylinder type soil sampling device has the advantages that the structure is simple, the sampling efficiency is higher, the bending and breaking of the sampling cylinder are avoided, the disengaging from the sampling cylinder due to moving-up of sampling soil is avoided, the labor intensity is lower, the operation is simple and convenient, and the practicality is stronger.

The invention discloses a device detection method, which comprises the following steps: irradiating the surface of a device for a test by a first light source, taking a photo of the device under the irradiation of the first light source to obtain a first image; according to the first image, positioning the device; irradiating the surface of the device by a second light source, taking a photo of the device under the irradiation of the second light source to obtain a second image; and analyzing the second image to determine whether the device is qualified or not. The provided method can carry out positioned detection and defect detection on a device, the position where the device stays can be accurately positioned, at the same time, the device can be detected to determine whether the deviceis qualified or not, the subsequent operation such as calibration, assembling, and the like, becomes convenient, and the product quality is improved effectively. Moreover, the integrated operation ofpositioning and defect detection is realized, the device does not need to be transmitted between different stations, and the detection efficiency is improved.

The invention discloses a database performance test system. The database performance test system comprises a test case creating module, a test executing module and a data analysis reporting module, wherein the test case creating module is used for determining a current test case group which comprises one or more operation types of test cases; the test executing module is used for conducting concurrent test on a target database according to all the test cases in the current test case group determined by the test data creating module and obtaining the score of each test case in the current test case group on the target database; the data analysis reporting module is used for calculating out the total score of the target database according to set weight of all the operation types on the basis of the scores of all the operation types of test cases in the current test case group on the target database. The database performance test system can self-define test data and test cases, rapidly and easily test database performance, and conduct comparison test on various types of databases.

This invention relates to a error tolerant computer system hinge fault injection device and method, wherein the device adopts IC test clamper and injection aim system chip for hinge connection; the host machine is connected to injection control single machine circuit through communication circuit; the injection control single machine circuit is separately connected to multi-path output selector, injection or test FPGA control circuit, aim trigger FPGA control circuit and monitor control single machine circuit.

The invention discloses a river water sampling device at different water depths. The river water sampling device comprises a transverse plate and a sampling barrel, wherein a vertical spiral shaft isarranged on the transverse plate; a movable sleeve which is connected with the spiral shaft in a threaded fit mode is arranged on the spiral shaft; the outer side wall of the movable sleeve is connected and fixed with a fixed sleeve arranged on the outer side wall of a supporting lifting tube through a fixed connecting rod; the sampling barrel comprises an inner barrel and an outer barrel; a rotary shaft is arranged inside the supporting lifting tube; the bottom end of the rotary shaft passes through the top wall of the outer barrel and is fixedly connected with the top wall of the inner barrel; a plurality of partitions which are parallel are arranged on the inner part of the inner barrel for dividing the inner barrel into a plurality of sampling cavities; a first water inlet is formed inthe side wall of each sampling cavity; a plurality of second water inlets which are in one-to-one correspondence to the first water inlets are formed in the side wall of the outer barrel; and a rotary rod is further arranged at the top end of the rotary shaft. The river water sampling device is simple in structure, is relatively high in reliability of sampled river water, is simple, convenient and quick to operate, can sample river water at different depths, and is relatively high in practicability.

The invention discloses a wear resistance detecting device for automobile accessories. The wear resistance detecting device for the automobile accessories comprises a base; a groove is formed in one side of the base; a first driving motor is mounted in the groove; an output shaft of the first driving motor is connected with an air bellow in a sleeving manner; the outer wall of the top of the air bellow is welded with an air guide pipe; a baffle plate which is welded perpendicular to the base is mounted at one end, far away from the air bellow, of the air guide pipe; a vent pipeline is arranged in the baffle plate in the height direction of the baffle plate; the vent pipeline communicates with the air guide pipe; a plurality of groups of vent holes which communicate with the vent pipeline are formed in one side of the baffle plate; a dust collecting groove is formed in the surface of the base; a supporting plate is vertically welded on the surface of the side, far away from the baffle plate, of the base; and a mounting groove is formed in the surface of the side, close to the baffle plate, of the supporting plate. The wear resistance detecting device for the automobile accessories is novel in design; debris on the surface of a component can be blown off in time; a detecting result is prevented from being influenced because of the increment of friction force between a friction mechanism and the component caused by the debris; the pressure on the component of a friction plate can be adjusted manually; and the wear resistance detecting device for the automobile accessories is beneficial to obtaining a detecting result.

The invention relates to a device for testing the mechanical response of surrounding rock and an anchoring body under the action of a dynamic load and a static load. The device comprises a frame and an arc-shaped channel located in the frame, wherein a lower support plate used for supporting the arc-shaped channel is arranged under the arc-shaped channel, and the lower end of the lower support plate is connected with a bottom support plate; the arc-shaped channel comprises a sample channel body located in the middle of the arc, a left channel body and a right channel body, the left channel body and the right channel body are located on the left side and right side of the sample channel body, a top end limiting plate is arranged above the sample channel body, an impact load loading device is arranged on the outer side of the top end limiting plate, a left force transmission plate and a right force transmission plate are arranged in the left channel body and the right channel body respectively, the right end of the left force transmission plate and the left end of the right force transmission plate are connected with the left end and right end of the sample channel body respectively, and the left end of the left force transmission plate and the right end of the right force transmission plate are connected with a left loading device and a right loading device respectively. By the adoption of the device, the practical working environment of the surrounding rock and the anchoring body can be accurately simulated, and the processes of fracture evolution of the surrounding rock and the anchoring body under the action of the dynamic load and the static load can be directly observed and tested.

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.

The invention relates to a method for sound source localization based on horizontal audiometry. The method comprises the following steps: (1) in a standard sound-insulating dark room, eight loudspeakers are distributed uniformly in a circle with a 50 cm radius, a test subject is the centre of the circle and at the same height as the circle, and the included angle of two adjacent loudspeakers is kept at 45 degrees; (2) eyes of the subject are covered with a black fabric; (3) one of the eight loudspeakers is randomly allowed to make a sound for 40 microseconds with a time interval of 5 seconds, totally 100 times in one test cycle; and (4) the total error is calculated, which is the sum of absolute values of difference between actual position and estimated position of the sound source in the total 100 tests, and the test accuracy rate is calculated, which is the percentage of times when the subject accurately judges the sound source position. The method is simple and feasible, and has high test accuracy and complete functions.

The invention discloses a method for testing the compression performance of a carbon-fiber reinforced resin-based thin-wall composite pipe. A mechanical compression testing piece of the carbon-fiber reinforced resin-based thin-wall composite pipe is prepared with the cementing connection technology. Firstly, the compression testing piece is installed and clamped on a mechanical testing machine; secondly, the compression testing piece is loaded; finally, a breaking load and the corresponding deformation value are obtained. By means of the method, the problem that an existing mechanical performance testing method of a carbon-fiber reinforced resin-based composite pipe material is not suitable for the thin-wall composite pipe is solved, buckling failure of the pipe in the testing process is avoided with a novel compression test piece preparing method, and a new test method is provided for the carbon-fiber thin-wall composite pipe. The practical compression performance of the carbon-fiber reinforced resin-based thin-wall composite pipe can be reliably reflected with the method.

A method for burying optical fiber and its packaging material includes coating adhesive uniformly on surface of optical fiber to be buried and optical fiber sensing element, soaking it in silane coupler after said adhesive is cured, drying up coupler on optical fiber in the air then positioning it in mould, setting portion to be buried on central axle of mould and adding silane coupler in packaging material to make curing-forming. The burying structure for realizing said method is also disclosed.

The invention discloses a testing device of shale suction capacity under confining pressure and a test method thereof. The testing device comprises a stratum confining pressure stimulator and a fluidsupply device, wherein the stratum confining pressure stimulator comprises a rock core holder used for clamping shale rock pillars, a sealing device used for sealing two ends of a shale rock pillar and a confining pressure adding mechanism connected to the rock core holder; the fluid supply device comprises a metering mechanism which is connected in series with the sealing device through a flexible pipe and a liquid injection pipe which is connected in series with the sealing device and connected in parallel with the flexible pipe; the liquid injection pipe is provided with a valve; and the liquid injection pipe and the metering mechanism are positioned at the same side of the sealing device. According to the invention, testing with confining pressure can be realized, and effective basis is provided for understanding the shale suction capacity under confining pressure of true stratum so as to guide optimization of a fracturing fluid and optimization of a fracturing fluid flow-back system.

The invention relates to a detection device, in particular to a glass impact type detection device in intelligent manufacturing. The glass impact type detection device in intelligent manufacturing canautomatically detect glass, and is accurate in detection result and high in working efficiency. A glass impact type detection device in intelligent manufacturing comprises a mounting base; an impactassembly which is mounted on the mounting base and impacts in a sliding manner; and a placement assembly which is mounted on the mounting base. Glass can be knocked and detected through the impact assembly instead of manpower, a large amount of manpower is saved, the working efficiency of people is improved, the glass needing to be detected can be placed through the placement assembly, meanwhile,the impact force borne by the glass during impact detection can be adjusted, the distance between the glass and an impact block can be more accurately adjusted through a distance adjusting assembly according to the requirements of people, and the glass needing to be detected can be supported through a supporting assembly.

The invention discloses a micro-fluidic-chip device and method for particle-and-cell sequence isolation and enumeration based on nanometer-micron channel combination. A micro channel of the micro-fluidic-chip device comprises a sample feeding channel, a main channel and a plurality of sample discharging channels, wherein a first electric-field isolation and enumeration channel is provided with anisolation-and-enumeration anode liquid storage hole, and is perpendicularly communicated with the main channel through a first detection door; a second electric-field isolation and enumeration channelis provided with an isolation-and-enumeration cathode liquid storage hole, and is perpendicularly communicated with the main channel and a flow field focusing channel through a second detection door;platinum electrodes are inserted into the isolation-and-enumeration anode / cathode liquid storage holes, the anode of a direct-current power source is connected with the first electric-field isolationand enumeration channel, and the cathode of the direct-current power source is connected with the second electric-field isolation and enumeration channel. According to the micro-fluidic-chip device and method for particle-and-cell sequence isolation and enumeration based on nanometer-micron channel combination, enumeration can be achieved when to-be-detected cells do not enter the detection doors, and under the condition that to-be-isolated cells are not damaged, cells accurately flow into the different discharging channels under the dielectrophoresis force.

The invention relates to a migration transfer characteristic test system of fragments of a reactor containment and a test method thereof. The system comprises a test segment module composed of a waterchannel, a rectifying grid, a filter screen and related equipment, a flow rate adjusting module composed of a water tank, a main water pump, an electric valve and related pipelines and instruments, acooling module composed of a cooling water pump, a heat exchanger, a cooling tower and related pipelines and instruments, a thermotechnical hydraulic parameter measuring module composed of a flowmeter, a temperature sensor, a pressure sensor and a liquidometer, an image collecting module composed of a high-speed camera, a local area network computer and related image processing software, a flow field information collection module composed of PIV equipment, a local area network computer and related flow field processing software and a remote control module composed of a programmable logic controller, a water pump, an electric valve and related equipment. The system simulates a ground water flow velocity field of the containment accurately after loss of coolant accident and acquires characteristic parameters of different fragments migrating in water.

The invention relates to an inspection device for an automobile catalyst converter assembly. The inspection device comprises a bottom plate, an air inlet flange detecting device, a lifting hook detecting device and an air outlet flange detecting device, wherein the air inlet flange detecting device, the lifting hook detecting device and the air outlet flange detecting device are arranged on the bottom plate. The air outlet flange detecting device comprises an air outlet flange detecting plate, and bolt through hole positioning pins I corresponding to an air inlet flange are arranged on the air outlet flange detecting plate; the lifting hook detecting device comprises lifting hook positioning detecting frames, and a lifting hook positioning detecting groove I is formed in the top end of each lifting hook positioning detecting frame; the air outlet flange detecting device comprises an air outlet flange positioning and detecting plate and slide rails, the air outlet flange positioning and detecting plate is provided with bolt through hole positioning pins II corresponding to an air outlet flange, scales are arranged on the slide rails, and the air outlet flange positioning and detecting plate is arranged on the slide rails. Positioning detection can be conducted on all installing components of the automobile catalyst converter assembly fast and accurately by the inspection device.

The invention discloses an environmental soil detection device, comprising a base, the lower surface of the base is provided with supporting legs, the front side of the detection box on the upper surface of the base is provided with an opening, one side of the opening is hinged to a sealing plate, and the detection box A workbench is supported on the support column at the bottom of the interior, a groove is provided in the middle of the upper surface of the workbench, and a heating device is provided in the middle of the lower surface of the workbench. Both the input end and the input end of the electric telescopic rod switch are electrically connected to the output end of the external power supply, the output end of the electric telescopic rod switch is electrically connected to the input end of the electric telescopic rod switch, and the air inlet of the gas chromatograph on the base is connected to the Test gas port connections inside the box. The environmental soil detection device is simple to operate and convenient to move. The pressure plate flattens the sample and is then heated by the heating device. The efficiency of organic matter volatilization is greatly improved, and the sealing effect is good.

The invention discloses a test device and method for researching friction characteristics between a tire and an actual pavement, and belongs to the technical field of detecting equipment. Actual working conditions of the tire with load running on different pavements are well simulated through mechanical structures such as a loading sleeve, a loading sleeve base, a rotary arm and a rack, the test device and method for researching friction characteristics between the tire and the actual pavement can be used for testing a friction factor between the tire and the pavement and researching wear pattern between the tire and the pavement, compression amount of a loading spring can be adjusted through a loading screw according to requirements, and thus a test load is adjusted; meanwhile tire running speed is adjusted through a transmission system; changing is conducted on a slip rotary rate or a slip shift rate between the tire and a pavement through adjusting a connected relation between a tested wheel and an auxiliary wheel, multiple kinds of running conditions of the tire on the pavement are simulated, data such as the load, a rotate speed and a torque are detected in real time through asensor, and thus the friction factor between the tested tire and the tested pavement is obtained by formula calculation.

The invention discloses a rapid collecting device for deep soil, and relates to the technical field of soil detection. The rapid collecting device comprises a sampling rack, a sampling depth control mechanism, a soil sampling cylinder assembly, a drill bit base assembly and drill bit assemblies. The rapid collecting device has the technical advantages that the device is applicable to collecting soil of different geological types, and can collect soil in deep soil layers; when the soil sampling cylinder assembly goes deep enough into soil, the multiple drill bit assemblies are controlled to pinch off the lower end of a soil column, the lower end of the soil column is supported, and the phenomenon that the soil column is extracted and pulled apart when the soil column is extracted out upwards is avoided. The sampling depth control mechanism is connected to the upper end of the sampling rack, the two ends of the soil sampling cylinder assembly are in sliding-fit connection with the two ends of the sampling rack, the middle end of the soil sampling cylinder assembly is in threaded connection with the sampling depth control mechanism, the drill bit base assembly is connected to the lower end of the soil sampling cylinder assembly, and the four drill bit assemblies are evenly wound around the lower end of the drill bit base assembly.

The invention relates to the valve detection processing field, and discloses a valve tightness detecting device. The valve tightness detecting device comprises a detecting table and an iodine solutionbox; a frame is arranged on the detecting table, a first pressing plate and a second pressing plate are glidingly connected to the frame, and a pull rope is connected to the middle of the first pressing plate and the second pressing plate; a fixed pulley, a first rotary wheel and a second rotary wheel are rotationally connected to the frame; the pull rope strides over the fixed pulley, the firstrotary wheel is connected with the second rotary wheel through a belt; a roll belt are wound between the first rotary wheel and the second rotary wheel, and a wafer is arranged on the roll belt; a first plug rod is connected to the first pressing plate, and a second plug rod is connected to the second pressing plate; plug holes are arranged at the parts where the detecting table is faced to the first plug rod and the second plug rod; a detecting site is arranged between two plug holes, and provided with a fluid leaking hole; the iodine solution box is connected with a fluid pipe, a free end ofthe fluid pipe is located at the upper part of the detecting site, a switch is arranged on the fluid pipe and connected with a torsional spring. Through the invention, the detecting efficiency and accuracy of the valve can be improved.

The invention provides a movable baffle plate for a macroporous resin column. The movable baffle plate for the macroporous resin column comprises a baffle plate main body, a washer and water caps for filtering resin, wherein the baffle plate main body is of a cylindrical structure, a groove is formed in the middle part of the side surface of the baffle plate main body, the washer is nested in the groove, the radius of the periphery of the washer after nesting is slightly more than the radius of the circle of the baffle plate main body, a through hole is formed between the upper surface and the lower surface of the baffle plate main body, a water cap base is fixed in the through hole, and a filtering head of each water cap is arranged on the upper surface of the baffle plate main body. The movable baffle plate for the macroporous resin column has a simple structure and can be used conveniently, resin can be effectively prevented from being washed away and influencing the testing result when a sample is loaded on the macroporous resin column, the sample tailing phenomenon can be avoided when elution is carried out, the washer can be replaced conveniently, and the movable baffle plate has prominent practicability.

The invention relates to a water body automatic sampling device. The problems that manual sampling is inconvenient and automatic sampling cannot fully reflect the actual situation of a water body andis not accurate enough are effectively solved. According to the technical scheme, the rotation of an impeller is driven by river water; the impeller drives a first reel to receive a rope and drives asecond reel to release the rope, so that the time interval for sample collecting is proportional to the flow rate of the river water; a signal transmitted by a Hall sensor is used to control the startand stop of a motor; when the motor drives a second rotation shaft to rotate, sample collecting is started; the second reel receives the rope, and the first reel releases the rope; the impeller rotates in the opposite direction; the nearby river water is stirred, so that the river water is not stratified; a floating object entangled on the impeller automatically break away from the impeller; eachtime the motor starts and stops, a planetary gear train drives a first sleeve to rotate at a certain angle to collect a bottle of sample.

The invention discloses a disposable specimen collecting tube which mainly solves the problems that the sampling amount can not be constant because the sampling is carried by adopting a plastic cup and the pollution is extremely easily caused to influence an inspection result because specimens are treated in an opening manner. The disposable specimen collecting tube comprises a tube body with a cavity inside, a tube spoon, and a quantifying scraper blade used for scraping excessive sampled specimens, wherein a tube cover is arranged at the top of the tube spoon and the tube spoon can be rotatably connected with the top of the tube body through the tube cover, a baffle plate with an overflowing hole is arranged at the lower end of the tube body and is used for partitioning the interior of the tube body into an upper cavity and a lower cavity, the tube spoon is arranged in the upper cavity, a lower rubber plug matched with the lower cavity is arranged in the lower cavity, and a specimen collecting cavity communicated with the upper cavity is arranged on the lower rubber plug through the overflowing hole. The disposable specimen collecting tube disclosed by the invention is compact in structure, is reasonable in design, is low in cost and the filter core is convenient to replace, so that the disposable specimen collecting tube is suitable for popularization and appllication.

The invention provides a supporting component used for a wind tunnel test, and relates to the field of the wind tunnel test. According to the supporting component, a curved tail supporting rod supporting structure is provided, and the tail supporting rod is designed into at least three sections which are different in axis so that the airflow obstruction reverse interference of the tail supporting rod for a test model can be reduced, and the pneumatic data of the test model can be more accurately measured; the angle and the length of each section of the tail supporting rod are changed so that the tail supporting rods of a separating test model and a separated test model which are close to each other are enabled to maintain a large distance in space, and mutual interference in the separating test process can be avoided and influence on the test result can be avoided; meanwhile, a tail supporting rod fixing part matched with the tail supporting rod is designed, a measurement component of certain height is fixedly installed, and measurement of the distance between the model reference center of gravity and the balance calibration center of the wind tunnel test model can be realized through the measurement component and the measurement accuracy of the whole device can be guaranteed within 0.1mm.

The invention discloses a portable fruit and vegetable food inspection apparatus. The apparatus comprises: a housing; a sampling head comprising a first portion, a second portion, and a third portion;a crushing member comprising a second gear plate and a plurality of second blades; a soaking tank; a first blocking plate; a material guide tank; a second blocking plate; a first inspection tank; a second inspection tank; a recovery tank; a liquid storage tank; and a second rotating shaft. According to the portable fruit and vegetable food inspection apparatus, food sampling, sample pretreatmentand sample inspection are integrated. The food can be inspected in the field, and the food sample can be inspected multiple times. The whole inspection process is carried out inside the housing without touching an inspection sample and a test paper by hand, thereby proving a sterile inspection environment, avoiding the influence on an inspection result by external contact, and ensuring the accuracy of the inspection result.

The invention provides a multipoint gas monitoring device. The multipoint gas monitoring device comprises a selective sampling drum, multiple sampling connecting pipes, a rotary connecting pipe, a driving part, a first gas detection unit, a first power unit and a second power unit, wherein one ends of multiple sampling connecting pipes are arranged on the air inlet surface of the selective sampling drum and form a circle, one end of the rotary connecting pipe is contacted with the air inlet surface of the selective sampling drum, the other end of the rotary connecting pipe is communicated withthe first gas detection unit, the driving part is connected with the rotary connecting pipe in a driving way and used for driving the air inlet end of the rotary connecting pipe to do circular rotation around the circle formed by multiple sampling connecting pipes on the air inlet surface and be sequentially connected with the rotary connecting pipe and each sampling connecting pipe, the first power unit is connected with the selective sampling drum, and the second power unit is connected in a gas circuit communicated with the rotary connecting pipe. The multipoint gas monitoring device provided by the invention has the advantages that uninterrupted sampling detection is carried out on content of water and oxygen, harmful gases and cleanliness of ingredients of gases at different positions, measurement accuracy is high, size is small, and cost is low.