96 results about "Proof test" patented technology

An electric wire and cable conductivity, tensile strength and aging comprehensive testing device comprises a testing control system, an analytical balance, an electrical bridge with a clamp, an insulation resistance tester, a tension testing machine, a high-temperature low-temperature humidity thermal cycling testing machine, an air-exchange aging testing machine, an ozone-proof aging testing machine, an xenon lamp weather-proof testing machine, a gas analysis device and a test control system. The device can test mechanical performance of an electric wire and cable, electric performance of the electric wire and cable and performance of the electric wire and cable under the influence of environment at a time, can effectively reduce work load of a test of the electric wire and cable, enables the test of the mechanical performance, the electricity performance, and the performance of the electric wire and cable under the influence of the environment to be concentrated and effective, and can synchronously test components of released gases of a cable with a sheath in the aging process.

A water-proof test system is prepared as using air extracting module to generate a negative pressure for extracting air out from internal of tested object to make pressure at internal of tested object be less than pressure at external of tested object, using pressure converter to detect pressure at internal of tested object to generate a pressure data to be outputted, using controller to detect pressure variation in internal of tested object in following time-lasting to obtain result and using obtained result to judge tightness and water proof ability of tested object.

In a homo-code continuity proof testing device for testing with test data including a predetermined homo-code continuity proof test pattern, a testing device on a transmitting side synchronizes the test data in the form of a frame, including a predetermined test pattern, a data synchronous pattern, an error detecting pattern, and preferably a frame synchronous pattern for testing a homo-code continuity proof strength, with a predetermined clock, to be transmitted. A tested device on a receiving side extracts a clock included in the test data, detects the data synchronous pattern, the error detecting pattern, and the frame synchronous pattern in synchronization with the extracted clock, and determines a homo-code continuity proof test by the detection/undetection of each pattern.

The invention relates to a high-efficiency MTBF (Mean Time Between Failures) proof test method applied to a ship navigation product, which comprises the following steps of: (1), determining test time; (2) determining environmental parameters; (3) determining a test section; and (4) determining test passing criterion. The method disclosed by the invention is a reliable acceptance test method, which is particularly applied to being used by the navigation product; a test program can be simplified by adopting the test method disclosed by the invention; the test time is shortened to r=(0.148-0.212)M from r=(1.1-45)M; the test time is greatly reduced; furthermore, the test section is greatly simplified; the development cycle can be greatly shortened; and a lot of test funds and resources, such as manpower, material and the like, can be saved.

The invention relates to an earthquake proof performance analysis method of a dry type transformer for nuclear power, comprising the following steps of: preliminarily designing a structure, determining a computation model, analyzing an electromagnetic field, statically analyzing the structure, determining earthquake action input conditions, calculating the strength of the computation model, estimating earthquake proof performances, correcting a weak link and carrying out earthquake proof verification tests. When the error between a measured value of the dry type transformer obtained in the earthquake proof verification test and a theoretical calculated value thereof is in the allowable range, the product design is put on stream. The invention more truly simulates movement conditions of the dry type transformer for nuclear power under the action of random earthquake motion, the structural design of the dry type transformer can satisfy the intensity requirement for earthquake proof requirement response spectrums, the intensity calibration can be carried out by using a virtual prototype, and the earthquake proof test frequency of an object prototype can be reduced. The invention can be applied to the earthquake proof design calculation of all models of dry type transformers for nuclear power and has the characteristics of high development efficiency, low development cost and wide application range.

The invention discloses a data cutting and packaging method suitable for physical layer rateless code transmission. A sending end reads data from an information source, an MAC frame header and a CRC proof test value of a whole MAC frame are added, and therefore an information packet is obtained; then, rateless code encoding is conducted on the information packet to generate an encoding packet, and the encoding packet is divided into multiple blocks; a physical layer frame header with a leading character, modulation mode identification, an information packet identification number, an encoding packet identification number, an encoding packet length and other related information is packaged on each block of the encoding packet, and then each block is modulated into a sub-frame. By adjusting the number of the sent sub-frames and the size of each block of the encoding packet, the transmission rate can be flexibly controlled, and the characteristic of the code rate self-adaptive channel change of a rateless code is given into full play; a receiving end stores information of the encoding packet at the corresponding position after receiving the sub-frames, and therefore decoding can be smoothly conducted.

The invention discloses a method for electrical detection on wire harnesses of different sizes, which comprises the following steps of: parallelly arranging two sliding rails on an installation operating platform; preparing a plurality of detection circuit boards, wherein a butting connector is integrated on a detection circuit board correspondingly according to the size of a connector arranged at one end part of a wire harness to be detected; preparing an error-proof test device, wherein a row of pins are integrated in the error-proof test device and the pins correspond to jack connectors atthe other ends of the different-size wire harnesses; selecting a corresponding detection circuit board according to the size of the connector of the wire harness to be detected; respectively and electrically connecting the error-proof test device and the detection circuit boards with a test machine; butting the jack connectors arranged at one end of the wire harness to be detected with the pins on the error-proof test device; and butting the connectors arranged at the other end of the wire harness to be detected with the butting connectors on the circuit boards. By the method, electrical detection on the wire harness can be performed by the testing machine, and corresponding detection circuit board is only required to be changed if another size of wire harness is detected.

The invention discloses a concrete multi-span continuous beam or plate fire-resistant experiment device, and relates to a fire-resistant experiment device, aiming at solving the problems that the present measurement of building unit fire-resistance is only the measurement of fire resistance duration of building units and the present measurement can not survey and evaluate the fire-resistant performance such as internal force changes, deformation rules and the like of the building units in fire. Upright posts are placed on the surrounding of the support saddle of test pieces; two roof bolts are placed on the ground of the two longitudinal outer sides of a reaction force frame; a weighing sensor is arranged under a reaction force beam; a jack is arranged under the weighing sensor; a nozzle is arranged at the place of a jet; an oil pump is connected with the nozzle and is also connected with a fuel tank; a blower is communicated with the jet; a flue is arranged at the lower parts of a furnace body and the side wall of the adjacent testing piece support saddle thereof; and the upper parts of the furnace body and the side wall of the adjacent testing piece support saddle are provided with at least two thermoelectric couples. The invention provides test devices for the concrete multi-span continuous beam or plate fire-resistant experiments, satisfies the experimenting requirements such as warming, boundary constraining, reaction force measuring, loading, etc.

The invention relates to a comprehensive gas distribution device and a gas distribution method for explosion-proof tests for mine explosion-proof electric appliances. The device sequentially consists of a gas source unit, a flow control unit, a gas mixer, a test tank unit, a pressure transmitter, a gas analysis unit, a data acquisition apparatus and a computer. The device is characterized by also comprising a programmable logic controller (PLC) control cabinet for controlling the flow control unit, the test tank unit, the pressure transmitter and the gas analysis unit through the computer. By fully using modern means of PLC process control, ternary and binary effective mixing proportion of test mixed gases specified by national related standards is effectively finished; the system can acquire and analyze the data in real time in the gas distribution test process; meanwhile, by adopting a three-stage gas mixer, the gas distribution accuracy and the success rate are high, and the system has high response speed and high automation control degree; and by the gas distribution method, the inspection efficiency is improved on the basis of ensuring the inspection accuracy and the success rate.

The invention discloses a physical termite-proof high hard sheath material employing and a preparation method thereof; the physical termite-proof high hard sheath material comprises the following components and raw materials according to the parts by weight: 70-80 parts of ultrahigh molecular weight polyethylene, 20-30 parts of processing modifier, 0.2+/-0.05 part of processing additive, 0.2+/-0.05 part of antioxidant and 3+/-0.5 parts of anti-ultraviolet master batch. The prepared termite-proof sheath material by the preparation method of the invention passes through termite-proof test (colony method) grade 2 and is mainly used to prepare cable sheath material which is used in regions of the south and tropics and regions with many termites and has termite-proof performance requirement.

The invention discloses a device for fire resistance tests of pressure elements. The device comprises a fire-proof test box and a power supply control cabinet. The technical key points are as follows: a V-shaped supporting block of the tested element is arranged in the fire-proof test box; the V-shaped supporting block is adjustable vertically and moveable horizontally in order to facilitate the supporting block to correspond to a burner at the bottom of the fire-proof test box; a connecting pipe which is communicated with the tested element is arranged in the fire-proof test box; the connecting pipe is communicated with an external heating water box and circulation is formed by virtue of a flow pump; a temperature measuring sensor, a flow measuring sensor, a fluid pressure measuring sensor and a flow control valve are sequentially arranged at the connecting pipe; a heater is arranged in the water box, a water level alarm device is arranged at the upper part of the water box and a radiating fin is arranged at the outer side wall of the water box. The device can meet the requirements of International Standardization Organization (ISO) 19921; the choice range of the to-be-detected elements is wide; and the device also has the advantages of reasonable structure, good safety performance, wide application range, accurate detection data, convenience and the like.

The present invention is intended for improving the reliability of a strength proof test method for ceramic parts. The present invention is directed to a strength proof test method for making total inspection of ceramic parts, including: applying a prescribed load to the ceramic parts; and at the same time, making an acoustic emission measurement, in which the ceramic parts are considered as passing when the ceramic parts are not fractured in the test and the variation of acoustic emission energy is not more than a threshold.

The invention relates to a special apparatus for physical, chemical and biological experiments, particularly to a test tube clamp. A skid-proof and rust-proof test tube clamp comprises two clamp pieces and two clamp holders, wherein one of the clamp holders is connected with a long holder, and the long holder is sleeved with a plastic sleeve. The test tube clamp is characterized in that the clamp pieces and the clamp holders are once formed to be a whole; the total length of the two clamp pieces and the two clamp holders is 9cm; at a position 2/9 of the total length of the test tube clamp, the two clamp holders are connected by using a hinge pin and can rotate around the hinge pin; and at a position 4/9 of the total length of the test tube clamp, two hollow cylinders (same in inside diameter and material, and respectively provided with a thread at the middle parts thereof) are symmetrically arranged on the two clamp pieces, and then a screw is adopted to connect the two hollow cylinders by the thread; and the flare angles of the two clamp pieces can be flexibly adjusted by adjusting the screw, and the insides of opposite surfaces of the two clamp pieces are fixedly provided with felts or high temperature resistant plastics, so that under the protection action of the two felts or high temperature resistant plastics, the screw is adjusted to tightly clasp a test tube and enable the test tube to be stressed uniformly. Except the felts or high temperature resistant plastics and the plastic sleeve, the adopted materials of the test tube clamp are all stainless steel materials, therefore, the occurrence of rusting caused by wetness or long-time disuse can be effectively prevented. The skid-proof and rust-proof test tube clamp is simple in structure, low in cost, durable, safe and reliable, strong in practicability, easy to generalize, and great in market potential.

The invention relates to a hydraulic pressure test device for an explosion-proof part. The device comprises a hydraulic pump and a part to be tested; an inlet valve and an outlet valve are respectively arranged at two sides of the part to be tested, the hydraulic pump, the part to be tested, the inlet valve and the outlet valve are connected through pipelines, and a pipeline between the inlet valve and the outlet valve is provided with a pressurizer. A testing method comprises the following operational steps: opening the hydraulic pump so as to allow water to enter and closing the outlet valve when water current at a water outlet of the part to be tested is stable; applying a set pressure, closing the inlet valve and pressurizing the part to be tested by using the pressurizer; determining that the part to be tested is defective if an alarm device sounds an alarm, determining that the part to be tested is qualified if the alarm device has no response and opening the outlet valve so as to finish testing. According to the invention, explosion and leakage in an explosion-proof test are specifically quantilized and directly represented; a conventional method of determining whether a part is in accordance with explosion-proof requirements by observing whether there are water drops around a workpiece in a conventional explosion-proof test is replaced; the efficiency rate and accuracy of the test are greatly improved.

The invention relates to a detection box used for detecting the ice thrust and ice pulling destruction of reservoir icing for water construction and a detection method thereof, and belongs to the field of water construction prevention. The detection box comprises a water tank filled with liquid capable of icing, wherein the top and one vertical side of the water tank are of an open design; an opening in the top of the water tank is provided with a top plate; an opening of the vertical surface of one side is provided with a test material plate; the test material plate is fixed on the water tank through a fixing plate; the periphery of the top plate and the periphery of the fixing plate are both sealed with the water tank; the top plate and the test material plate are respectively provided with multiple lines and rows of pressure sensors which are horizontally and vertically arranged; the pressure sensors are in communication connection with a signal receiver through a data transmission line. According to the detection box, an ice thrust experiment can be carried out in a laboratory, an ice pulling destruction situation is qualitatively detected, so as to verify whether a test material can resist the ice thrust and ice pulling destruction or not, detection data is accurate, and construction verification does not need to be carried out in a practical water conservancy project.

The invention discloses a test tube for edible fungus with a moisture-proof end of the test tube. There are threaded holes, bolts are installed inside the threaded holes, nuts are installed on the bolts, a semi-spherical groove is opened on the upper end surface of the base, a first circular cavity is opened inside the test tube body, and both sides of the upper end surface of the test tube body are opened. There is a chute, and the inside of the chute is slidingly connected to one end of the sleeve. There are several positioning holes on both sides of the sleeve, and fixing holes are opened on both side walls of the test tube body, and fixing screws are installed inside the fixing holes. , one end of the fixed screw is fixedly connected to the right side wall of the rotating turntable, the outer wall of the rotating turntable is provided with anti-slip lines, and the other end of the fixing screw is located in the positioning hole. The test tube for edible fungus has a compact structure and an adjustable volume. .

The invention discloses a touch module fool-proof test system and method. The system comprises a function test device, a recognition device and a transmission device, wherein the recognition device iselectrically connected with each of the transmission device and the function test device. The method comprises the following steps of: transmitting a tested touch module to a scanning position; scanning a recognition code of the touch module so as to obtain the recognition code and function test result file information thereof; and judging a recognition code condition and a function state of thetouch module according to the recognition code information and the function test result file information. By implementing the system and method, the recognition device is in network communication withthe function test device, so that the automation degree of test processes is improved and the labor cost is reduced.

The embodiment of the invention discloses a fool-proof testing device. The device comprises a housing; a groove which is located on the housing; a shielding apparatus which is disposed on the housing and is used for forming a shielding region; and a connector interface which is located in the shielding region. A to-be-detected device is placed in the groove, and is connected with the connector interface through a connector. The housing is additionally provided with the shielding apparatus, thereby forming the shielding region, effectively preventing hot plug operation during electric detection of a device on the testing device, and avoiding the damages to an LCD.

The invention discloses an explosion-proof performance test device and test method for an explosion-proof permanent magnet electric roller. The test device comprises an explosion-proof test tank, a tension device, a built-in pressure measuring device and a signal protection device, the tension device, the built-in pressure measuring device, the signal protection device and the roller are arrangedin a closed explosion-proof test tank body; the tension device is arranged on an outer rotor of the explosion-proof roller to simulate the field stress condition; the built-in pressure measuring device is mounted in the electric roller, and the two ends are separately arranged; the signal protection device is used for tension signal monitoring. According to the invention, rated load and overload are applied to the shell of the explosion-proof permanent magnet electric roller, and the explosion-proof permanent magnet electric roller is respectively subjected to an internal ignition non-explosion-propagation test, so that the stress direction and the test method are determined. By simulating the internal ignition non-explosion-propagation test of the permanent magnet electric roller in the actual stress state, compared with a traditional no-load state test method, the method is more accurate and reliable.

The invention discloses a fool-proof test device and method. The device is composed of a function test unit and an identification unit. The function test unit is configured to test whether all functions of a touch module are normal and generate a function test result file; and the identification unit is configured to determine whether the touch module is abnormal by scanning an identification code. The identification unit is electrically connected to the function test unit. When the identification unit identifies that the touch module becomes abnormal, the function test unit stops running. Themethod comprises: basic information and a function test result file of a current touch module are obtained; identification code information and a function test result file are obtained; and whether the identification code information already exists is determined. Therefore, entrance of the defective products in the touch modules into a next procedure is prevented, so that the losses of the enterprise are lowered; the work efficiency is improved, and the labor cost is saved.

The invention belongs to the technical field of moisture-proof testing and discloses a moisture-proof testing device. The device comprises a tool frame, wherein a sample mounting plate is arranged on the tool frame, and the height of the sample mounting plate can be adjusted; a casing cover is arranged on the tool frame, and the sample mounting plate is located in the casing cover; the bottom of the casing cover is connected with a steam generation unit, and the quantity of steam of the steam generation unit can be adjusted. The casing cover is supplied with steam through the steam generation unit with adjustable steam quantity, different humidity environments are simulated, the steam is independently provided, the influence of low temperature in the casing cover on the humidity can be avoided, and a low-temperature and high-humidity testing environment can be obtained; the temperature is reduced after the steam reaches to the casing cover through a pipeline, and the temperature is lowest when the steam flows to an exhaust hole; samples on the sample mounting plate can be in different temperature environments by adjusting the height of the sample mounting plate; the moisture-proof testing device can simulate the testing environment with higher humidity at the lower temperature and can meet the testing demands.

The invention relates to a buffer base coaxiality assembling and adjusting test tool, a buffer base coaxiality assembling and adjusting test method and a buffer base coaxiality verification and testing method. The tool comprises a base coaxial bottom supporting piece, base coaxial positioning pieces, an upper mounting plate coaxial positioning piece and a coaxial guide rod, wherein the plurality of base coaxial positioning pieces are inserted and matched with a plurality of positioning slots in the base coaxial bottom supporting piece one by one through plug ends, so that the outer arc positioning surfaces of the plurality of base coaxial positioning pieces are positioned on the same circumferential surface, and the diameter of the circumferential surface is consistent with the aperture of a central hole of a lower reference base of the buffer base; the upper mounting plate coaxial positioning piece is an annular piece, and the diameter of the outer circle face of the upper mounting plate coaxial positioning piece is consistent with the aperture of a center hole of an upper mounting plate of the buffer base; and the lower end and the upper end of the coaxial guide rod are respectively inserted and matched with a central positioning hole of the base coaxial bottom supporting piece and the central hole of the upper mounting plate coaxial positioning piece, so that the base coaxial positioning pieces are coaxially matched with the upper mounting plate coaxial positioning piece. According to the buffer base coaxiality assembling and adjusting test tool, the workload of an operator is saved, and the adjustment efficiency and verification test efficiency of the buffer base are improved.

The invention provides an explosion-proof test system, and relates to the field of special explosion-proof equipment. The explosion-proof test system comprises a remote console, an explosion-proof room, and a special explosion-proof mechanical arm. The remote console is arranged out of the explosion-proof room and the special explosion-proof mechanical arm is arranged in the explosion-proof room.The lateral wall of the explosion-proof room is provided with an observation window. The special explosion-proof mechanical arm comprises an explosion-proof hand control box, an explosion-proof electrical base, a telescoping arm, an elevating rotation shaft, and a protective shell. The telescoping arm is rotatingly connected to the top end of the elevating rotation shaft. The other end of the elevating rotation shaft stretches into the protective shell. The protective shell is fixedly connected to the top of the explosion-proof electrical base. The explosion-proof hand control box is fixedly connected to the protective shell and is connected to the remote console through communication. The explosion-proof hand control box is electrically connected to the telescoping arm and the elevating rotation shaft. Compared with the prior art, the explosion-proof test system has a simple structure, moreover, the explosion-proof mechanical arm and the remote console are separated, the control is convenient, and the safety is enhanced at the same time.

A method of testing a shipping container (10) for use as an upper container in a vertical tandem lift configuration the method comprising supporting the container other than by the lower corner fittings (15), connecting couplers (18) in the lower corner fittings of the container to be tested and then applying a proof load on the couplers to confirm that the container and/or the couplers can sustain the forces at least through the lower corner fittings which will be experienced during use in a vertical tandem lift. The invention also provides a rig (70, 143) for carrying out the proof test and/or for connecting or disconnecting couplers to or from the lower corner fittings of a shipping container. Various corner units for use in such a rig are also disclosed.