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127results about How to "Reduce test efficiency" patented technology

Installation method of steam heating coil for ship oil tanks

The invention discloses an installation method of an oil compartment steam heating coil pipe used for a ship. After the segmenting forming is carried out to the oil compartment, the oil compartment steam heating coil pipe is started to be installed; then the position of a pipe bracket is determined according to the installation coordinate of the oil compartment steam heating coil pipe in a drawing, and the pipe bracket is installed on a special large angle bar for the oil compartment steam heating coil pipe to be preassembled; then a first oil compartment steam heating coil pipe is fixed on the pipe bracket according to the installation coordinate in the drawing, then one end of the second oil compartment steam heating coil pipe is inserted into the connecting sleeve of the first oil compartment steam heating coil pipe and the second oil compartment steam heating coil pipe is fixed on the pipe bracket according to the coordinate, the positioned and installed oil compartment steam heating coil pipes are fixed on the connecting piece of the connecting sleeve by dot welding, and the other oil compartment steam heating coil pipes are installed in sequence; and finally the pipe bracket and the connecting sleeve are welded. The installation method has the advantages of regular and artistic appearance, convenient installation and inspection, environmental protection, and good economic benefit.
Owner:GUANGZHOU WENCHONG SHIPYARD CO LTD

Fast test device capable of simultaneously measuring air passage eddy and tumble of gasoline engine

The invention discloses a fast test device capable of simultaneously measuring air passage eddy and tumble of a gasoline engine. The fast test device comprises three parts, namely a roller way lifting assembly, an airflow guiding assembly and a blade-type anemograph assembly. Two connecting plates below a working table board are used for fixing two synchronous motors; two worm shaft brackets are used for supporting worm shafts; the two synchronous motors drive the worm shafts, as well as worms and gears to rotate so as to realize decelerated motion; a roller way is used for placing a to-be-measured cylinder cover; two worm wheels are welded on corresponding cam shafts respectively; the roller way is erected through rotation of a cam to enable the cylinder cover to move vertically on the working table; and air passage flow parameters are measured through the blade-type anemograph, a relevant sensor and the like. The fast test device omits the operation of carrying the cylinder cover manually, dispenses with redesign of a clamping and positioning mechanism of an original air passage test stand, has the characteristics of convenient mounting and dismantling, can test the air passage of engines with more than four cylinders, and can remarkably improve the detection speed of each cylinder cover.
Owner:TIANJIN UNIV

Lightning arrester device and regulating method for detecting automatic balance of direct current supply of transformer substations

The invention discloses a lightning arrester device and a regulating method for detecting the automatic balance of direct current supply of transformer substations. The lightning arrester device comprises a hollow barrel. The hollow barrel is arranged at the upper end of an insulating telescopic rod and is perpendicular to the insulating telescopic rod, an annular magnet is arranged on a side of the barrel, the size of the annular magnet is matched with the diameter of a hole of the barrel, a motor is arranged in the barrel via a slide mechanism, a turntable sleeves an end of a rotary shaft of the motor, a conductive brush is arranged on the outer side of the turntable, a turntable tightness compression regulating mechanism is arranged in the barrel, and an elastic conductive sheet which is connected with the rotary shaft of the motor is arranged in the barrel. The lightning arrester device and the regulating method have the advantages that wires can be shifted onto metal components of a lightning arrester only by a single person in a time-saving and labor-saving manner and are in excellent contact with the metal components, the person does not need to climb to clean corrosion substances of the metal components, accordingly, the labor intensity is extremely low, more importantly, an integral wiring procedure can be completed by the single person in one minute, and the wiring efficiency is extremely high.
Owner:国网河南省电力公司桐柏县供电公司

Test device for coefficients of horizontal-reference foundation bed and test method using device

InactiveCN104594323AReduce the impact of drawingGuaranteed test resultsIn situ soil foundationConstant loadEngineering
The invention discloses a test device for coefficients of a horizontal-reference foundation bed. The test device comprises a test bracket, a lifting jack, a bearing plate, a pressure sensor, a counter-force plate, a hydraulic energy storage tank, a pressure device, a test bridge and a dial indicator, wherein the lifting jack is transversely and horizontally arranged on a horizontal mounting surface of the test bracket; the bearing plate is longitudinally arranged at one end of a cylinder body of the lifting jack and perpendicular to a length direction of the lifting jack; the pressure sensor can be used for displaying pressure; the counter-force plate is longitudinally arranged on one side of the bracket, and a front end surface of the counter-force plate is in contact with the pressure sensor through a cushion block; one end of the hydraulic energy storage tank is communicated with the cylinder body of the lifting jack through an oil path, and the other end of the hydraulic energy storage tank is connected with the pressure device. The invention further discloses a test method for the coefficients of the horizontal-reference foundation bed. A hydraulic energy accumulator and the pressure device are combined with a pressure reducing valve to provide constant-pressure control output, and influences of non-constant load on curve drawing are reduced, so that the test results are guaranteed. Readings can be read conveniently and quickly through the pressure sensor.
Owner:NINGBO UNIVERSITY OF TECHNOLOGY

Method and system for testing terminal compatibilities of mobile applications, equipment and medium

Embodiments of the invention disclose a method and system for testing terminal compatibilities of mobile applications, equipment and a medium. The method comprises the following steps of: sending a mirror image request to at least two driving clients so that the driving clients can determine respective roles according to the mirror image request, wherein the roles respectively comprise a main primary driving client and at least one secondary driving client, and the driving clients respectively establish remote control channels with corresponding to-be-tested terminals; receiving mirror image source events forwarded by the primary driving client, wherein the mirror image source events are used for remotely controlling the corresponding to-be-tested terminals by the primary driving clients to execute the mirror image source events so as to carry out test; and generating mirror image events according to types of the mirror image source events, sending the mirror image events to the secondary driving clients so that the secondary driving clients control the corresponding to-be-tested terminals to execute the mirror image events so as to carry out test. According to the method and system, the terminal compatibility test cost can be reduced and the test efficiency can be improved.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Wafer performance testing device and method

The invention relates to the technical field of semiconductor testing, in particular to a wafer performance testing device and method. The device comprises a probe station module and a test module. The probe station module comprises a mechanical unit and a calibration positioning unit. The probe station module comprises a wafer table to be tested; the mechanical unit transmits a plurality of single wafers to be tested to a wafer table to be tested by adopting different transmission tracks; the calibration positioning unit detects the current position information of each single wafer to be detected when the single wafer to be detected is located on the wafer table to be tested; when the current position information does not accord with preset position information, the position of each single wafer to be detected is adjusted; and the test module is used for carrying out performance testing on each single wafer to be tested according to the test trigger signal when the test trigger signalis received. The device comprises a plurality of feeding and discharging bins, a plurality of chip carriers can be placed in the feeding and discharging bins at the same time for feeding at the sametime, and a plurality of testing stations conduct testing in parallel, so that unnecessary repeated material feeding and discharging work is reduced, and the testing efficiency is improved.
Owner:QINGDAO GOERTEK MICROELECTRONICS RES INST CO LTD

Nano-indentation technology-based method for studying boundary phase of composite material

The invention discloses a mano-indentation technology-based method for studying the boundary phase of a composite material, and belongs to the technical field of micro-nano mechanics test. The methodcomprises the following steps: marking the starting point and the end point of the boundary phase in a two-dimensional map in a three-dimensional map, performing click to automatically generate a vertical face which passes through the adjacent starting points and is perpendicular to the horizontal plane of the space coordinate system in the three-dimensional map to obtain an intersection line 1 between the vertical face passing through the adjacent starting points and the three-dimensional map, and carrying out same steps to obtain an intersection line 2 between the vertical face passing through the adjacent end points and a map 2; reserving the three-dimensional map between the intersection line 1 and the intersection line 2, and observing the three-dimensional morphology of the boundaryphase of the composite material; removing the three-dimensional map between the intersection line 1 and the intersection line 2, carrying out indentation experiments with the pressed depth being lessthan the scratch depth at the center position of the adjacent scratches at the left side of the connecting line of the starting points, and measuring the mechanical properties of a reinforced phase atthe micro-nano scale; and carrying out indentation experiments with the pressed depth being less than the scratch depth at the center position of the adjacent scratches at the right side of the connecting line of the end points, and measuring the micro-nano scale mechanical properties of a matrix.
Owner:BEIJING UNIV OF TECH
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