45results about How to "The test value is accurate" patented technology

The invention relates to a method for testing the original viscosity of an adhesive by adopting a vertical tension method, belonging to the field of viscosity tests of adhesives and comprising a tension tester. The method is technically characterized by comprising the following steps: firstly, a clean steel ball is vertically hung on the tension tester through a stayguy; secondly, an adhesive tape is flatly adhered to a carrying platform arranged below the clean steel ball; and thirdly, the tension tester is started to enable the clean steel ball to descend with uniform speed of 250 to 350 mm / min until the clean steel ball is in a stationary state on the surface of the adhesive tape, and then the clean steel ball is fast lifted upwards with speed of 250 to 350 mm / min through the tension tester until the clean steel ball leaves the adhesive tape, and the tension tested by the tension tester is the original viscosity of the adhesive. After improving the prior art, the invention has the advantages that the method can test the adhering performance of a single mark, and has accurate test value and little error.

The invention relates to the field of threaded fastener test apparatus, and especially relates to a clamp for threaded fastener proof load tests. The clamp for threaded fastener proof load tests comprises two symmetrically arranged clamp heads; each clamp head comprises a clamp body, a horizontal cushion block provided with a through hole, and a servo-actuated cushion block, which is provided with a middle hole, wherein the hole size of the middle hole is smaller than that of the through hole; one end of the servo-actuated cushion block is provided with a semi-spherical surface; one end of the horizontal cushion block is provided with a spherical-crown shaped recess, which matches with the semi-spherical surface; the clamp body comprises a clamping seat, wherein the bottom surface of the clamping seat is a plane and one side of the clamping seat is provided with a middle cavity, and the middle cavity is in a hole-through connection with the side wall of the clamping seat, and a clamping rod which is connected to the top surface of the clamping seat; the bottom of the clamping seat is provided with a bolt groove which is respectively in a hole-through connection with the side wall of the clamping seat and the middle cavity. The clamp for threaded fastener proof load tests guarantees the precision of the results of thread fastener proof load tests.

The invention discloses a water turbine for power system stability calculation and a water diversion system parameter modeling and testing method, and the method comprises the steps: 1), carrying outthe guide vane given step disturbance of a hydroelectric generating set in grid-connected operation at different working condition points, and obtaining an active power reverse regulation rule; 2) improving a traditional water turbine and water diversion system model; (3) measuring the outlet flow inertia time constant of the hydroelectric generating set to be measured; 4) checking the improved water turbine and water diversion system model and identifying the effectiveness of the water flow inertia time constant. According to the method, the active power initial value is directly associated with the water turbine and the water diversion system model, active power reverse adjustment changes under multiple working conditions are achieved, when the active power initial value of the unit changes, electric power stability calculation technicians do not need to modify water flow inertia time constants one by one in a stability calculation program, and the working efficiency is remarkably improved; and the model is wider in general working condition, the test method is simple, the test value is accurate, and the stability calculation precision of the power system is greatly improved.

The invention discloses a radio frequency test system and a test method thereof. The radio frequency test system comprises a radio frequency generation module for providing frequency and energy; a radio frequency matching module used for ensuring the stability of applied energy; a correction module used for correcting the applied energy; a radio frequency test module used for testing output energy; and a display module used for displaying an output energy curve. According to the invention, the correction module for correcting the applied energy is designed; the signal-to-noise ratio is reducedthrough image rejection of the correction module, so that the error range of the test system during test is reduced, the test numerical value is more accurate, meanwhile, the display module is designed to display a measured numerical value curve, visual impact of a tester is given, and the range of the measured numerical value is easier to identify.

The invention provides a soft package battery side voltage detection device and a side voltage detection method. The detection device comprises a supporting unit, a battery pressing unit, a side voltage detection unit and a control unit, wherein the battery pressing unit comprises a lower pressing assembly and an upper pressing assembly, the lower pressing assembly comprises a lower pressing driving mechanism and an upper pressing plate, and the upper pressing assembly comprises a supporting base, a pressing driving mechanism and a lower pressing plate; the side voltage detection unit comprises a tab pressing conduction mechanism and a tab protection compatible moving mechanism, the tab pressing conduction mechanism comprises a tab pressing assembly and a tab conduction mechanism, and thetab protection compatible moving mechanism is arranged between the supporting base and the lower pressing plate; and the control unit comprises a controller and a plurality of pressure sensors. The side voltage detection method comprises the steps of adjusting the position according to the size of incoming materials; and clamping a soft package battery by the battery pressing unit after the soft package battery is fed in place, and measuring the soft package battery. The beneficial effects are that the soft package battery side voltage detection device can measure batteries of the same type and different sizes, and is wide in application range; and the whole process is detected automatically, and the work efficiency is high.

The invention provides a bonding material shearing strength testing tool and a bonding material shearing strength tester. The bonding material shearing strength testing tool comprises: a base, a plurality of detection blocks and a plurality of pressing blocks, wherein the detection blocks are arranged in parallel and are arranged in the base; each detection block comprises a first structure body and a second structure body, which are adhered, and a bonding surface is arranged between the first structure body and the second structure body; the distribution of the pressing blocks is consistent to the distribution of the detection blocks; the pressing blocks are used for acting on the second structure bodies; the plurality of pressing blocks are distributed in a ladder shape and each pressingblock is cut in sequence; therefore, the pressing block with the greatest height is used for applying a shearing force on the corresponding detection block at first, and the second structure body iscut off from the corresponding first structure body; then other pressing blocks are cut in sequence according to the height sequence of the pressing blocks; the plurality of detection blocks can be detected in one step and the efficiency is relatively high.

The invention discloses a method for manufacturing an architectural acoustics 1: 10 reduced ruler head and torso simulator. The method comprises the first step of scanning a full-size standard head and torso simulator prototype through a three-dimensional laser scanner and storing the scanned data file as a DXF; the second step of guiding the DXF into a 3DMAX so that three-dimensional patch editing can be carried out on the DXF and an accurate three-dimensional curved surface digital model of the head and torso simulator can be obtained, wherein an auditory meatus is reserved in the head and torso simulator in the process of modeling; the third step of manufacturing the 1: 10 reduced ruler head and torso simulator through a 3D printing machine according to the designed three-dimensional digital model in a proportional zooming mode; the fourth step of vertically placing two microphones connected with rotary unions into the auditory meatus pre-reserved in the 1: 10 reduced ruler head and torso simulator to serve as a binaural signal receiver simulating the full-size head and torso simulator; the fifth step of plugging filler into a chest of the 1: 10 reduced ruler head and torso simulator. The 1: 10 reduced ruler head and torso simulator can be used for measuring hall space sense parameters in an acoustics reduced ruler model experiment and will be applied to the auralization technology.

The invention relates to a method for testing the original viscosity of an adhesive by adopting a vertical tension method, belonging to the field of viscosity tests of adhesives and comprising a tension tester. The method is technically characterized by comprising the following steps: firstly, a clean steel ball is vertically hung on the tension tester through a stayguy; secondly, an adhesive tape is flatly adhered to a carrying platform arranged below the clean steel ball; and thirdly, the tension tester is started to enable the clean steel ball to descend with uniform speed of 250 to 350 mm / min until the clean steel ball is in a stationary state on the surface of the adhesive tape, and then the clean steel ball is fast lifted upwards with speed of 250 to 350 mm / min through the tension tester until the clean steel ball leaves the adhesive tape, and the tension tested by the tension tester is the original viscosity of the adhesive. After improving the prior art, the invention has the advantages that the method can test the adhering performance of a single mark, and has accurate test value and little error.

The invention relates to a test apparatus applied to detecting life and fatigue of a water separator, and an application method thereof. The test apparatus comprises a support, the upper portion of the support is provided with a clamping mechanism for clamping the two end portions of the water separator and an inflation assembly for filling the water separator with air, a longitudinal vertical plate is arranged at a position, which is disposed at the rear side of the clamping mechanism, of the upper portion of the support, the support is internally provided with a horizontal driving motor, the output shaft, which passes out of the rear side of the support, of the driving motor is provided with an eccentric wheel, the hinge pin of the eccentric wheel is hinged to a driving connecting rod, the other end of the driving connecting rod is hinged to a fixation clamp which penetrates an arc locus groove arranged on the longitudinal vertical plate and is used for clamping a water separator handle so as to realize switching-on and switching-off of the water separator, and the front side surface of the support is also provided with a display screen and a control button. The apparatus provided by the invention is compact in structure, convenient to operate and high in work efficiency, and can be conveniently used for testing the service life of the water separator.

The invention provides a method and system for detecting noise inside a GNSS receiver. The method comprises the steps that an external frequency standard signal is connected to a reference input interface of a satellite navigation signal simulator, and the GNSS receiver is connected to an output interface of the satellite navigation signal simulator; simulation start time and stop time, navigation frequency points and coordinate longitude and latitude values of the satellite navigation signal simulator are set; the satellite navigation signal simulator is started, the GNSS receiver collects, tracks and solves radio frequency navigation signals generated by the satellite navigation signal simulator, and original observation data are led out and stored after measurement is over; the third step is repeated until all set testing processes are completed, and the received original observation data are led out; data processing software of the GNSS receiver is used for processing the received original observation data, and measurement values of noise inside the GNSS receiver are generated.

The present invention belongs to bearing detection and test in mechanical engineering and is the load uniforming detection device and method for serial combined thrust bearing. There are vertical frame, oil cylinder in the lowr part, driving box in the upper part with thrust bearing on its output shaft, bearing fixing seat screwed to the output end of oil cylinder piston rod; serial combined cylindrical roller thrust bearing to be set in the bearing fixing seat and with spindle connected to the output shaft; speed varying gear mechanism inside the driving box; and electrical resistance strain gages to be adhered to the outer surface of the bearing to be measured. The present invention has the features of reasonable structure and reliable measured data and is suitable for dynamic detection of uniform load performance and fatigue life of various serial combined cylindrical roller thrust bearings.

A detection device for air intake resistance of a general-purpose small-flow air filter, which is characterized in that it includes a sealing inspection tool, and a fixing device for positioning the air filter to be tested is arranged in the sealing inspection tool, and the entire air filter to be tested can be The inner cavity of the sealed inspection tool is divided into an air intake chamber and an exhaust chamber, wherein the upper sides of the air intake chamber are respectively provided with an air inlet and a side outlet, and the bottom of the exhaust chamber is provided with an exhaust port, and the exhaust port The negative pressure air source is connected through the pipeline, and the side air outlet is connected with the pipeline of the exhaust port after being connected with the differential pressure gauge through the pipeline. The detection device for the air intake resistance of the small-flow air filter of the general machine designed by the invention can accurately measure the air intake resistance of the small air filter, and has the characteristics of simple operation and high data consistency.

The invention relates to a wood drying method, which is a method for controlling a wood drying process by wood stress. In a drying process, the bending degree of a stress test piece represents a stress value to control the temperature and the moisture of a drying kiln so as to control a wood drying process. Wood of a certain length is sawn on dried material; the sawn wood is equally divided into two parts on the half of the thickness direction along the fiber direction, i.e. a first stress test piece and a second stress test piece; except the wood surface, the two stress test pieces seal rest five surfaces to isolate the five surfaces from air; then, the five sealing surfaces of the second stress test piece are fastened by a fixing sleeve; the two stress test pieces are put on the position with the highest drying speed in the drying kiln along with the dried material; the stress of the dried material is judged according to the bending degree of the two stress test piece; and the bending degrees of the stress test piece is observed to control the temperature and the moisture of a drying medium and the drying kiln so as to guarantee the drying quality of the wood and prolong the service life of the dried material. The method is especially suitable for drying tree types which are difficult to dry.

The invention discloses an indoor light path test system which comprises a laser generator, a condenser lens to be tested, a condenser lens bracket and a receiver, wherein the laser generator is used for shooting laser beams; the condenser lens bracket is used for mounting and fixing the condenser lens to be tested and is arranged below the laser generator; and the receiver is used as a screen of a focal spot formed by the reflected light of the condenser lens bracket and is arranged between the condenser lens bracket and the laser generator. The invention further discloses a method for testing a light path and a method for testing the energy flux density of the focal spot.

The invention relates to the technical field of mechanical property tests, and discloses a horizontal push-pull force tester. The horizontal push-pull force tester comprises a fine tuning module, a tensiometer, a coarse tuning module, a base, precise guide rails and a transitional plate, wherein the fine tuning module comprises a tension fine tuning handle wheel, a lead screw and a lead screw seat; the forwarding or retracting of the lead screw is controlled by the forward and reverse rotation of the tension fine tuning handle wheel; the other end of the lead screw is contacted with the precise guide rails fixedly provided with the tensiometer and the transitional plate; and the accurate position of the transitional plate on the precise guide rails can be controlled. The coarse tuning module comprises a winding wheel, a winding handle, a ratchet wheel and a bearing seat; and the winding handle controls the ratchet wheel to rotate only toward one direction by the bearing seat and generate stepping. The horizontal push-pull force tester can carry out detection of mechanical tension or thrust on a single product, and has the advantages that the testing value is accurate, the error isless and the occupied space is less. In addition, by applying the fine tuning function of the horizontal push-pull force tester, the tension can be increased at constant speed, and the product is prevented from being damaged after being impacted by sudden force in the testing process.

The invention relates to a colloidal gold reading instrument, in particular to a colloidal gold portable CCD reading instrument. The reading instrument includes an upper cover, a lower cover, a front upper cover, an image acquisition device, a display unit, a processing system and a power supply module; The image acquisition device is set, the front upper cover is arranged above the notch to close, and an insertion port for the sample to enter the image acquisition device is arranged on the upper cover; The button module is provided with a transparent window, the display unit is arranged below the transparent window, and a processing system is fixedly arranged on the lower cover below the installation port, and the processing system is respectively connected to the image acquisition device, the button module, the display unit and the power supply module. The reading instrument of the invention has the characteristics of small volume, light weight and portability, can independently process data, and achieve the function of quantitative detection.