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

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 discloses a torsion spring fixed angle force measuring device including a fixed part, a rotation part, and a connection part, wherein the fixed part includes a support seat and a fixed plate, the rotation part includes a rotating plate, the rotating plate includes a base arranged at one end for supporting the bottom of a torsion spring and having a center through hole, a relatively arc-shaped slide rod arranged at one side of the base, protruding out of the base, and inserting into an arc-shaped through groove, and an actuating end arranged at the other end of the rotating plate and coaxial with the base, the torsion spring is coaxially arranged between the base and the actuating end, the connection part includes a core shaft which is a rod body having a protruding round table at one end, the core shaft passes through the center step hole of the flat plate of the support seat, so that the core shaft can be sleeved by the torsion spring, and the end part of the core shaft passing end extends into the actuating end of the rotating plate. The force measuring device, by means of the simple and reliable assembling part, can realize the torsional force test and failure measurement of the torsion spring. The structure is simple and the versatility is strong.

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 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 straingages 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 detectionof uniform load performance and fatigue life of various serial combined cylindrical roller thrust bearings.

The invention discloses a semiconductor test method which comprises the following steps: a test head is provided with a probe, when a semiconductor product needs to be tested, a test contact welding pad on the product is located below the test head, and the test head is pressed downward to enable the probe to contact with the test contact welding pad in order to conduct testing. The semiconductor test method is characterized in that on the basis of a first time jab, a second time jab is also performed, and therefore the longitudinal contacting area between the probe and the test contact welding pad is increased. According to the semiconductor test method, the test problems caused by the fact that contact resistance is too large in the process of electrical parameter test are solved, test values are more accurate, retest rates of factory machines are reduced, production capacity of the factory machines is improved, and working efficiency of production lines is improved.

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 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 a detection device for intake resistance of a small-flow air filer of a universal machine. The detection device is characterized by comprising a sealing testing fixture, the sealing testing fixture is internally provided with a fixing device for positioning an air filter to be detected, the air filter to be detected can separate the inner cavity of the whole sealing testing fixture into an air inlet chamber and an exhaust chamber, an air inlet and a side gas outlet are respectively arranged at the two sides above the air inlet chamber, the bottom of the exhaust chamber is provided with an air exhaust opening, the air exhaust opening is connected with a negative pressure air source through a pipeline, and the side gas outlet is connected with a differential pressure gauge through the pipeline and then is connected with the pipeline of the air exhaust opening. The detection device for the intake resistance of the small-flow air filer of the universal machine, provided by the invention, can accurately detect the intake resistance of the small air filter and has the advantages of simple operation and high data consistency.

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 belongs to the technical field of electronic component test, and particularly relates to an anode-cathode connector and a connector device for a battery or a capacitor. The connector comprises a metal portion for on detection of an anode and a cathode of the battery or the capacitor, the metal portion is provided with a heat sensor used for detecting heating temperature of the connector, and the heat sensor is embedded, integrated or attached onto the connector. The connector device comprises a fixed frame and a moving frame spaced from the fixed frame, and the battery or capacitor anode-cathode connectors matched mutually are disposed on the fixed frame and the moving frame respectively. By the aid of the heat sensor arranged on the connector, when the battery or the capacitor is tested by test equipment, heat value on the connector can be monitored constantly, and accordingly the connector can be avoided from transferring heat to the battery or the capacitor to affect test precision; moreover, the battery or the capacitor can be protected from damage due to overheating, and product quality of the battery or the capacitor is guaranteed.

The invention relates to a testing method of the water absorption property of a high-nickel material. The testing environment is controlled by using a constant-temperature and constant-humidity box, full contact with the air can be guaranteed through a micro sample test, and the testing accuracy can be guaranteed by the aid of a balance with the precision being 0.1 mu g. The testing method is simple, high in accuracy, high in repeatability and very applicable to comparison of the water absorption property of samples.

The invention discloses an AI emotion recognition mental health screening system, which relates to the technical field of image recognition and comprises a processing chip, a control register, a photosensitive multi-element converter, a first frame memory unit, a second frame memory unit, a frame difference capturing unit, a frame difference summator and an external electrically-connected signal output unit, and the control register, the photosensitive multi-element converter, the first frame memory unit, the second frame memory unit, the frame difference capturing unit and the frame difference summator are integrally arranged in the processing chip. The signal output end of the first frame memory unit and the signal output end of the second frame memory unit are electrically connected to the frame difference capturing unit, the signal output end of the frame difference capturing unit is electrically connected with the frame difference summator, and the signal output end of the frame difference summator is electrically connected to the signal output unit. The method is simple and easy to use, achieves intelligent learning and multi-dimensional analysis, is wide in application, can recognize a detection area which cannot be recognized by the face technology, can recognize the face orientation of the area which cannot be detected by the face technology, can also recognize the face which is partially shielded and has light rays of 100 LUX or above, and is not affected by expressions, ages and races.

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 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 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 discloses a method and system for correcting a water flow inertia time constant in a water turbine and diversion system model, and the method comprises the steps: selecting three operation water heads for the same grid-connected operation unit, selecting three same working condition points under each operation water head, carrying out the given step disturbance of a guide vane, recording output curves of the running water head, the active power and the unit flow, and analyzing an active power reverse regulation rule; introducing an active power initial value and a water flow inertia time constant correction coefficient which have a linear relationship with active power reverse adjustment to obtain an improved water turbine and water diversion system model; and verifying the effectiveness and accuracy of the improved water turbine and diversion system model and the water flow inertia time constant coefficient. According to the system and method, active power reverse adjustment changes under different operation water heads and multiple working condition points can be achieved, the test method is simple, the test value is accurate, and the efficiency and precision of all-working-condition simulation of stable calculation of a power system are improved.

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 invention relates to equipment in the technical field of paper test, and relates to a crumpling amplitude-adjustable paper crumpling performance test device. The crumpling amplitude-adjustable paper crumpling performance test device comprises a device body, wherein the device body further comprises a working panel, two parallel vertical plates are arranged on the working panel, a horizontal sliding groove is formed in each vertical plate, a sliding block is arranged in each sliding groove, each sliding block is provided with a clamp in the corresponding vertical plate, a side surface of around frame is connected to a rack, a roller is arranged in the round frame, a lower surface of the roller is in contact with a transmission wheel, a roller side is connected with the front sliding block via a front connection rod, a plurality of front connection points and a plurality of rear connection points are arranged on the transmission wheel and are distributed on the diameter of the transmission wheel, the front connection rod is detachably arranged on the front connection points, a rear connection rod is detachably arranged on the rear connection points, thus, the crumpling amplitude-adjustable paper crumpling performance test device has the advantage of more accurate test numerical value and also has the advantage of adjusting the crumpling amplitude of the paper.

The invention relates to a device in the technical field of paper testing, which is a temperature-adjustable paper flexibility testing device. The temperature-adjustable paper flexibility testing device comprises a device body; the device body comprises a working panel; two parallel vertical plates are installed on the working panel; the various vertical plates are provided with transverse slidinggrooves, namely the front sliding groove and the rear sliding groove; furthermore, sliding blocks are installed in the sliding grooves; the two sliding blocks are the front sliding block and the rearsliding block respectively; the device further comprises a cover body; the cover body is a structure covering the parts; the four sides at the lower side of the cover body are installed at four sidesof the working panel; the cover body is provided with a cover thereon; the device further comprises a semiconductor refrigeration part installed on the side surface of the cover body; and the semiconductor refrigeration part is provided with a power connection line. The paper flexibility testing device in the invention has the advantage of being relatively accurate in test numerical value, and also has the advantage of being capable of testing the paper flexibility at different temperatures.

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 the technical field of solid glue testing, in particular to automatic solid glue testing equipment which comprises a fixing frame, a connecting seat, an adjusting plate and a testing mechanism. According to the invention, the position of the designed adjusting plate can be adjusted and rotated, and different [-shaped hanging experiment tests of the sticky hook are realized, so that the test value of the sticky hook is more accurate, and the problem that the viscosity test result of the sticky hook is inaccurate due to a single test value is avoided; meanwhile, air is blown around the bonding position of the bonding hook and the convex plate before testing, the bonding speed between the bonding hook and the convex plate is increased, and the efficiency of testing the viscosity of the bonding hook is improved; and the problem of air source waste caused by non-closing of the air outlet groove is prevented.

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.