41results about How to "Test impact" patented technology

The invention discloses a ground testing device for an unfolding control mechanism of a space tied rope system. The ground testing device comprises a base, a rope unwinding mechanism, the unfolding control mechanism, a tension measuring mechanism, a speed measuring device, a rope winding mechanism and a display panel are arranged on the base, the rope unwinding mechanism, the unfolding control mechanism and the tension measuring mechanism complete tensioning and releasing of a tied rope on a base station spacecraft, the unfolding speed and the unfolding tension of the tied rope are changed by changing the friction force between the tied rope and a turbine shaft to control the unfolding process of the space tied rope system, and the speed measuring device, the rope winding mechanism and the display panel achieve the functions of measuring the tied rope speed, recycling the tied rope and setting and displaying parameters. The ground testing device has the advantages of being simple in structure, low in cost and suitable for the tied rope as long as 1 Km.

The invention belongs to a micro-biosensor and particularly relates to a manufacturing method of a silica-based integratable micro-glucose sensor. The existing glucose sensor takes a glucose oxidase electrode as a device for molecular recognition and signal conversion, thus having poor stability and restricting the application of the glucose sensor on the basis of enzyme. The manufacturing method comprises the following steps of: manufacturing a silicon micro-channel by using a P-typed single-side polishing silicon wafer through electrochemical etching; depositing the silicon micro-channel in eletroplating solution without electricity at the temperature of 80 DEG C for 30-45 minutes; and taking out and washing the silicon micro-channel with deionized water, and obtaining the silica-based integratable micro-glucose sensor. The invention has the advantages that: the electrochemical process is adopted, the cost is low, and the operation is simple; the micro-channel has even porosity, and the ratio of the specific surface area to the depth is big; the eletroplating solution without electricity has simple preparation and low price; no influence on the glucose test is generated; three-dimensional structure is beneficial to the contact between the glucose and active substances, and the improvement of the oxidation current; and the micro-biosensor is beneficial to the exchange reaction of ions and is miniaturized and integrated, thus being beneficial to large-scale production.

The invention provides a vacuum high-low temperature semiconductor device test probe station, which relates to the technical field of semiconductor devices. The vacuum high-low temperature semiconductor device test probe station comprises a workbench body, a protective cover, a probe rod and a probe head, wherein moving mechanisms are fixedly connected to the two ends of the top surface of the workbench body, each moving mechanism comprises a moving box, and micro motors are fixedly connected to the side surfaces, away from each other, of the two moving boxes. According to the vacuum high-lowtemperature semiconductor device test probe station provided by the invention, as a clamping mechanism is arranged, the advantages of convenience in replacement and use is achieved, and the problems that a probe is troublesome to replace when an existing vacuum high-low temperature semiconductor device test probe station is used for replacing the probe and the replacement efficiency is low can besolved; and as a buffer mechanism is arranged, the conditions that the surface of the wafer is easily stabbed, the testing of the wafer is further influenced, the tested result cannot be accurate andthe normal judgment of the wafer is influenced when the wafer is tested are effectively avoided.

The invention belongs to the field of pharmaceutical packaging materials, and relates to a rubber/fluoroplastic composite resealing shock insulator and a preparation method thereof. The rubber/fluoroplastic composite resealing shock insulator comprises a rubber layer, an intermediate layer and a fluoroplastic layer; intermediate layer materials comprise one or more of organosilicon, silica gel andperfluoroalkylation; fluoroplastic layer materials comprise one or more of a perfluoroethylene propylene copolymer, polytetrafluoroethylene, an ethylene-tetrafluoroethylene copolymer and polyvinylidene fluoride; a fluoroplastic layer has a sub-micron micropore structure; and rubber layer materials comprise one or more butyl rubber, natural rubber, silicone rubber, fluororubber and epdm rubber. The preparation method of the rubber/fluoroplastic composite resealing shock insulator comprises the steps of composite film forming, preparation of the rubber layer, preparation of a coated film, vulcanization, cleaning, drying and the like.

The invention provides an acceleration amplitude online calibration system of a laser vibration system in a high temperature condition. The system comprises a standard vibrating device used for generating and outputting a standard sine vibration signal and calculating an acceleration of the standard sine vibration signal, a quartz lamp array used for placing and heating a standard test piece, a ceramic rod used for transmitting the standard sine vibration signal to the standard test piece and isolating the standard vibrating device and the quartz lamp array, and a laser polarization system used for testing an acceleration signal of the standard test piece, one end of the ceramic rod is connected with the standard vibrating device, and the other end of the ceramic rod is connected with thequartz lamp array. According to the system, the problem of transmission of the acceleration amplitude output by the standard vibrating device to a high temperature environment without loss is solved,the operating environment of a standard accelerometer is guaranteed to be in a normal temperature or a controllable state, and the metering guarantee requirement of a thermal modal test of an ultrasonic velocity air defense missile flat type thermal modal test system is met.

The invention relates to a testable design structure based on scanning confusing and used for protecting an encryption chip against scanning attacks. Based on a conventional scanning design structure,a scanning password register and an associated logic are introduced into a secure testable design structure, and it is required that test passwords are firstly loaded from a chip input port during testing. Chip testing can be performed normally only after correct test passwords are loaded. If an attacker does not understand a correct test procedure and does not have the correct test passwords, the attacker cannot load the correct test passwords through the specific input port within the specified time, and therefore no value can be swept for a scanning chain under the 1-2-128 probability, thereal state of the scanning chain cannot be observed from the output end, and non-intrusive attacks based on scanning are virtually impossible. On the premises that the circuit performance and the testing quality are not influenced and the testing time is not added, existing non-intrusive attacks based on scanning can be resisted.

The invention discloses novel automobile seat ventilation quantity measuring equipment and a measuring method. The measuring equipment comprises a seat saddle, a test box, a gas mass flow meter, a pressure difference sensor, a fan and a controller; the seat saddle is fixedly connected with one end of the test box; the test box is of a hollow structure, the end, connected with the seat saddle, of the test box is of an open structure, so that the interior of the test box is communicated with the seat saddle, the pressure difference sensor is installed in the test box, electrically connected withthe controller and used for transmitting pressure difference information to the controller, a ventilation opening is machined in the tail end of the test box, the ventilation opening is connected with the fan through a ventilation pipeline, the gas mass flow meter is installed on the ventilation pipeline, and the gas mass flow meter is electrically connected with the controller and used for measuring the mass of gas passing through the ventilation pipeline; and the fan is electrically connected with the controller, and the controller controls the fan to supplement air into the test box or exhaust air outwards from the test box. The measuring equipment is reasonable in structural design and can realize high-precision full-automatic measurement.

The invention relates to a device and a method for detecting testing environment of a circuit. The detecting device mainly comprises a testing support plate, a slot and an antenna, wherein the testing support plate is positioned at the bottom of the detecting device; the slot is arranged on the testing support plate and used for fixing an element to be detected, such as an integrated circuit, and the element to be detected is electrically connected with the testing support plate; and the antenna is arranged on the testing support plate adjacent to the slot and used for receiving wireless signals and monitoring whether the testing environment has excessive foreign signals or not to influence the testing of the circuit.

The invention discloses a smoke alarm tester. The smoke alarm tester includes a control center and a test chamber; the test chamber is arranged on an annular channel formed by a pipeline; the test chamber is provided with at least one test bogie; the annular channel is provided with a blower with a built-in aerosol generator, an optical probe pipeline with a built-in optical probe, a first pipeline valve, a second pipeline valve and an electric wing blade valve, wherein the electric swing blade valve is arranged between the first pipeline valve and the second pipeline valve; the control center is in control connection with the blower, the aerosol generator, the first pipeline valve, the second pipeline valve and the electric wing blade valve respectively; and the optical probe is connected with the control center through an optical signal processing apparatus. The smoke alarm tester of the invention has the advantages of simple structure, convenient operation, high detection efficiency and high accuracy.

The invention discloses a chip failure positioning method and a clamp. The chip failure positioning method comprises a transfer step, a first positioning step, a first marking step, a second positioning step and a second marking step, and the chip failure positioning method can position failure points of chips with regular surfaces and without characteristic patterns.

The invention discloses a system and a method for detecting an image acquisition device arranged on an electronic device. A standard testing environment for the image acquisition device is provided via a testing fixture arranged on and covering the image acquisition device, outer environment can be prevented from influencing testing of the image acquisition device, and dual detection on resolution and color recognition can be provided, and technical effects that detection of the image acquisition device excludes influences of the outer environment and detection reliability is improved can thus be achieved.

The invention relates to a containment test system and method. The containment test system comprises at least two groups of gas supply units; at least two groups of adjusting units, wherein the air inlets of the adjusting units are communicated through a communicating pipeline; a first isolating valve is arranged on the communicating pipeline; the at least two pressurizing ports are communicated with the containment; wherein one adjusting unit corresponds to one air supply unit and one pressurizing port, the air inlet of each adjusting unit is communicated with the air outlet of the corresponding air supply unit, and the air outlet of each adjusting unit is communicated with the corresponding pressurizing port. On one hand, the gas supply section of the pressurizing opening can be increased, the pressurizing time of the containment is shortened, and therefore the containment testing efficiency is improved; and on the other hand, the plurality of sub-pressurizing systems can be mutually switched and can be mutually standby, so that the influence on the containment test caused by the damage of a single pressurizing system is avoided.

The invention relates to a comprehensive pipe gallery gas cabin explosion isolation and suppression test device, which is characterized in that a placement block is arranged in a gas cabin; wherein the top of the placement block is fixedly connected with a gas box, an adjusting assembly for adjusting the position of the gas box is arranged in the gas cabin, the top of the gas box is fixedly connected with two symmetrical first fixing blocks, and screw rods are rotatably connected in the first fixing blocks; two control assemblies used for controlling the angle between the screw and the gas tank are symmetrically arranged on the inner wall of the top of the gas cabin. Rectangular grooves are formed in the inner walls of the sides, away from each other, of the gas cabins; baffles are slidably connected into the rectangular grooves, and two sets of replacement assemblies used for replacing the corresponding baffles are symmetrically arranged at the top of the gas cabin. By means of the device, the shock waves generated by gas combustion explosion of the comprehensive pipe gallery gas cabin can be restrained and blocked according to whether the surface of the blocking plate in the gas cabin is smooth or not, the placement position of the gas pipeline and different angles of the connecting support in the gas cabin and the gas pipeline.

The invention relates to a photocatalytic performance testing device under monochromatic light irradiation, and the device comprises a base, a photocatalytic reaction area, an adjustable lamp post andLED monochromatic light sources. The adjustable lamp post is fixedly mounted at one side of the base; the photocatalytic reaction area is fixedly connected to the middle of the base, and the adjustable lamp post is composed of an adjusting lamp post main body, locking nuts and a telescopic rod at the upper part; the telescopic rod is arranged in the adjusting lamp post main body, and the telescopic rod can rotate; the locking nuts are symmetrically arranged at the two sides of the adjusting lamp post body and used for locking the telescopic rod; the top of the telescopic rod is connected withsix LED monochromatic light sources through hinges, and the six LED monochromatic light sources are evenly distributed and can be rotationally folded through the hinges. Scales are arranged on the surface of the telescopic rod. A photocatalyst of which the performance needs to be evaluated is placed in the photocatalytic reaction area, the length of the telescopic rod is adjusted to determine theillumination intensity under different distances, and the telescopic rod is rotated to determine the photocatalytic performance under different monochromatic light sources.

The invention belongs to the drill bit technical field and relates to a drill bit performance testing device. The drill bit performance testing device includes a pump, a circulation joint, a flow meter, a pipeline, a power head, a drill bit, a drill bit spindle, a drill bit conversion joint, a tester and a rock sample; the pump is connected with the flow meter through the circulation joint; and one end of the flow meter is sequentially connected with the power head, the drill bit, the drill bit spindle, the drill bit conversion joint, the tester and the rock sample through the pipeline. The drill bit performance testing device is simple in structure. With the drill bit performance testing device adopted, the impact force, rotation speed, strength and other performance of the drill bit canbe tested, and the machining quality of follow-up products can be ensured.

The invention provides a method for automatic testing. The method comprises the steps that the operation condition of each testing machine is acquired; Sorting is carried out according to the utilization rate of each test machine; and the test cases are distributed to the test machine with the lowest utilization rate. According to the method, the test cases are reasonably distributed by monitoringthe operation parameters of the machines, so that the automatic test time is balanced, the operation time of each machine is approximately equal, and the test time is reduced. And under the conditionthat the system load is ensured, each testing machine executes the testing cases in parallel as much as possible, so that the testing efficiency is improved.