48results about How to "Does not affect test accuracy" patented technology

The invention relates to a blanc fixe cementitious rock soil-like material and a method for making simulative rock from the blanc fixe cementitious rock soil-like material and belongs to the technical field of rock material simulation in a geomechanical model test. The blanc fixe cementitious rock soil-like material comprises blanc fixe as a aggregate, bentonite as an auxiliary material, and dilute glue composed of 107 glue and water. The method comprises the following steps of drawing a water-binder ratio-shearing strength f curve by the blanc fixe cementitious rock soil-like material, calculating wet density of different batches of the blanc fixe cementitious rock soil-like materials, and making a small test-piece from different batches of the blanc fixe cementitious rock soil-like materials. The blanc fixe cementitious rock soil-like material has a low cost and no toxicity, can be processed into small blocks easily, and can satisfy requirements of a geomechanical model test on the blanc fixe cementitious rock soil-like material. Simulative rock made from the blanc fixe cementitious rock soil-like material does not influence a model building process and can be made fast so that a model test rate is greatly improved. The blanc fixe cementitious rock soil-like material is suitable for the field of a test on a model built by laying small blocks.

The invention relates to a thin-film thermoelectric material resistivity test system and a method. The test system adopts a new thin-film thermoelectric material resistivity test instrument which is based on the principles of dual electro-testing and four probes to test the resistivity of a thin film thermoelectric material and is composed of a test fixture and a control and test circuit system. A thin film thermoelectric material sample to be tested is arranged in the test fixture, and the test fixture is connected with the control and test circuit system by a probe guide wire. The control and test circuit system gives pulse current signals to two of the four probes in the test fixture by the probe guide wires and collects voltage response signals between another two probes, the pulse current signals and the voltage response signals are simultaneously input in a micro-computer, and the real-time resistivity of the thin film thermoelectric material at the tested position is displayed on a display screen of the micro-computer. The test system and the method can greatly reduce the impacts of the distances among the probes and the transverse wandering of the probe tips on the resistivity test result, and the test precision can not be affected even the tested piece is smaller and the probes are positioned in the vicinity of the sample boundary.

The invention discloses a training method of a convolutional neural network, an image processing method and apparatus, a computer storage medium, a computer readable storage medium and a computer program. The training method of the convolutional neural network includes: deleting at least a non-linear correction layer arranged behind a linear structural layer in a first convolutional neural networkto obtain a second convolutional neural network; and performing supervision training on the second convolutional neural network based on a training image and annotated information of the training image. The image processing method comprises: merging at least a serial branch and/or at least a parallel branch in the second convolutional neural network after training completion to obtain a third convolutional neural network, wherein the at least one non-linear correction layer arranged behind a linear structural layer in the second convolutional neural network is deleted; inputting the image tothe third convolutional neural network; and processing the image through the third convolutional neural network to obtain a processing result of the image.

The invention discloses a manufacturing technology of a glass fiber/epoxy resin composite material substrate type fiber bragg grating sensor. The manufacturing technology comprises the steps that glass fiber/epoxy resin prepreg is procured to prepare a glass fiber/epoxy resin composite material substrate; a fiber bragg grating is fixed to the glass fiber/epoxy resin composite material substrate; the glass fiber/epoxy resin composite material substrate fixed with the fiber bragg grating is covered with a dry-state glass fiber cloth, vacuum aided filling of liquid epoxy resin is performed, and secondary curing molding is performed. The manufacturing technology adopts the secondary curing molding in the packaging process, the interlayer interface strength is remarkably improved, accordingly the testing precision and stability of the fiber bragg grating sensor are improved, batch production of the fiber bragg grating sensor can be achieved, and the manufacturing technology has wide market prospect and huge economic benefit.

The invention relates to the field of icing adhesion strength testing,and discloses an icing adhesion strength testing device. The icing adhesion strength testing device comprises a cooling table,a cooling circulator,a sleeve,a part to be tested and a force testing element. The cooling circulator is connected with the cooling table through a refrigerant circulating pipeline,the part to be tested is fixed to the cooling table,and the upper end and the lower end of the sleeve are open. A pull groove is formed in the circumferential direction of at least one end of the sleeve,the end,provided with the pull groove,of the sleeve is arranged on the part to be tested,and liquid is injected into the sleeve and cooled into an icicle through the cooling table; one end of an element with force to betested is connected with a connecting rope sleeve,the connecting rope sleeve is sleeved with the pull groove of the sleeve,the element with the force to be tested exerts pull force to the sleeve through the connecting rope sleeve until the icicle is separated from the surface of the part to be tested,and the icing adhesion strength between the icicle and the part to be tested is calculated. The icing adhesion strength testing device is easy,convenient and fast to operate,and good in result repeatability.

The invention relates to a characteristic testing method and device applied to different aging stages of super capacitors. The method includes the steps such as pre-testing, characteristic testing, temperature adjustment, temperature standing and aging testing. The device comprises power grid input, a power conversion device, a transitional super capacitor, a DC/DC converter, a temperature control box, a tested super capacitor and a host computer. Compared with the prior art, the characteristic testing method and device of the invention have advantages of a wide covering range, small characteristic influence, highly targeted performance, short consumed time and the like.

The invention discloses a non-contact nondestructive testing method and a non-contact nondestructive testing device for thermal insulation temperature of a thermal barrier coating. The method belongsto the technical field of nondestructive testing, and comprises the following steps: simulating a real service environment, heating the surface of a ceramic layer of the thermal barrier coating, cooling a high-temperature alloy matrix surface, and measuring the temperatures of a ceramic top layer of a high-temperature alloy component with the thermal barrier coating and the interface between the back surface of the ceramic layer and a metal bonding layer by using an infrared thermometer. Compared with an existing thermocouple contact temperature testing technology, the method has the advantages that non-contact measurement is achieved, so an original gas flow field and an original temperature field on the surface of the thermal barrier coating and in an air channel of the hollow blade arenot affected; temperature testing response is fast, the testing process is simple, and the method is high in practicability.

A storage structure for a micro-electronic component is provided, which comprises a chip with completed back end technique and a polymer layer that is covered on the surface of the chip and can be dissolved in solvent. Because the polymer layer is able to isolate the surface and external environment of the chip, the invention is able to prevent the occurrence of erosion, fading or stratification on the surface of the chip.

The invention relates to an absorption rotary wheel simulated condition dynamic automatic test system, and belongs to the technical field of air pollutant disposal. The absorption rotary wheel simulated condition dynamic automatic test system comprises a first room body, a second room body, a third room body, a fourth room body and a fifth room body, the first room body is communicated with the second room body through a first draught fan, the third room body is connected at the rear end of the second room body, the fifth room body is connected at the upper end of the second room body through a regeneration air inlet pipe and a regeneration air return pipe, and the fourth room body is connected at the rear end of the fifth room body. The absorption rotary wheel simulated condition dynamic automatic test system has the advantages of being high in automation degree, accurate in test data, wide in application range, and stable and reliable.

The invention relates to a method and system for compositely testing a veiling glare coefficient and point source transmittance. Cost can be saved to a large extent. According to the method, the positions of a collimating mirror in a first system and a second system are debugged in advance, and when the veiling glare coefficient is measured, the collimating mirror is moved to the position marked in the first system. When the point source transmittance is measured, the same collimating mirror is moved to the position marked in the second system. The system comprises the first system used for measuring the veiling glare coefficient and the second system used for measuring the point source transmittance, and the first system and the second system share the same collimating mirror. An off-axis reflector mechanism is innovatively used in the method and system, testing cost is greatly saved, and through the cooperation of a light source system, a collecting system and the like, the accurate and complete test of the stray light restraining capacity of the optical component of a large-bore long-focus camera is achieved.

The invention relates to improvement of a cuvette for optical detection. The improved cuvette is characterized in that a non-light transmission surface of the cuvette is provided with a hollow interlayer, and the hollow interlayer is provided with a circulating inlet-outlet channel for a thermal fluid medium to pass through an interlayer surface. The preparation method of the cuvette comprises the following steps: respectively heating and bending bar-shaped optical light transmission sheets which have equal widths and undergoe qualified processing into two U shapes with the different bending widths; internally and externally suspending and nesting two bending U shapes; positioning one side face on a substrate through binding for shaping; carrying out grinding processing on the nested U shape to position the opposite side to the horizontal; binding a light transmission plane film and separating from the positioning substrate; carrying out the grinding processing on an original binding side to an optical path size; binding the other light transmission plane film; and respectively binding a sealing plate and manufacturing an interface at the upper end of the hollow interlayer. Compared with the prior art, the cuvette has the hollow interlayer so that the cuvette has a constant temperature function, thereby completely satisfying the requirement of a constant temperature test.

The OTDR performance evaluation device of the invention comprises an OTDR and a disk-mounted standard optical fiber, wherein the standard optical fiber has an optical fiber connector, and the OTDR andthe standard optical fiber are connected through an optical fiber connector of the standard optical fiber. The OTDR performance evaluation method of the invention utilizes the OTDR and the standard optical fiber to test the optical fiber loss characteristics. The OTDR is connected with an optical fiber connector at one end of a standard optical fiber, and the optical fiber connector at the otherend of the standard optical fiber is connected with an optical fiber transmitting mirror, and the optical fiber length is tested. The OTDR is connected to the optical fiber connector at one end of thestandard optical fiber, and the optical fiber connector at the other end of the standard optical fiber is connected to the optical fiber trap for testing the dynamic range and blind area. The OTDR performance evaluation device and method of the invention can realize the functions of testing the length, loss, etc. of the OTDR, and the functions of testing the dynamic range, blind area and the like, so that the whole device is smaller and lighter without affecting the testing accuracy, and the function coverage is wider. The OTDR performance evaluation device and the OTDR performance evaluationmethod of the invention can realize the functions of testing the dynamic range, blind area and the like.

The invention discloses a vibration screen mesh easy to assemble and disassemble. The vibration screen mesh easy to assemble and disassemble comprises a plurality of screen meshes, wherein an upper notch is arranged on the top part of each screen mesh; a lower bulge is arranged on the bottom part each screen mesh; each lower bulge can be placed fitting to the corresponding upper notch; a sealing rubber strip is adhered and fixed to the bottom part of each lower bulge, is hollow, and is in an annular shape after being adhered; the inner diameter of each annular shape is larger than the outer diameter of screen cloth; one end of each sealing rubber strip is sealed; the other end of each sealing rubber strip stretches out of the outer side of each screen mesh; and a ball part air bag is arranged at the stretching end of each sealing rubber strip. According to the vibration screen mesh easy to assemble and disassemble provided by the invention, principles of hollow sealing rings and sucking balls are ingeniously utilized, and each two adjacent layers of screen meshes are automatically separated after the screening is accomplished, so that the operation can be carried out simply and conveniently, the testing accuracy of the screen mesh cannot be affected, and the service life of the screen mesh is prolonged.

The invention discloses a method for testing the sensing delay performance of an automatic driving vehicle, and the automatic driving vehicle comprises a sensing sensor used for generating sensing data, and an automatic driving system used for analyzing the sensing data and outputting a sensing result. The method comprises the following steps: S1, setting an object to be tested and an automatic driving vehicle according to a predetermined test scheme; S2, generating sensing data of the to-be-measured object through a sensing sensor; S3, selecting a reinjection sample from the sensing data, injecting the reinjection sample into the automatic driving system according to the frequency of generating the sensing data by the sensing sensor, and recording the injection starting time t1 and the time t2 of generating the first frame of correct sensing result data by the automatic driving system; and S4, calculating a value of [delta]T=t2-t1, and taking the value as the sensing delay of the automatic driving vehicle. The invention discloses a device for testing perception delay performance of an automatic driving vehicle. The method has the beneficial effect of accurately reflecting the perception delay performance of the vehicle.

The invention relates to a method for improving the actual measurement precision of mining-induced stress. The device comprises a stress meter, a hole sealing plug, a spacing rod, a grouting pipe andan elastic rubber sleeve. The method comprises the following steps: firstly, testing coal-rock mass strength and elasticity modulus of a stress meter planned mounting layer in a laboratory; preparinggrouting materials with the same or similar mechanical characteristics; drilling a hole in a coal-rock mass with mining stress to be measured, installing a borehole stress meter and grouting the drilled hole, so the broken and plastic surrounding rock on the periphery of the drilled hole is solidified again, and the drilled hole and the surrounding rock have the mechanical property of the completecoal and rock mass; when the mining stress is changed, the grouted drilled surrounding rock can transmit the mining stress to the drilled hole stress meter in time, effectively and basically in a lossless mode, and the actual measurement precision of the mining stress is remarkably improved. The method is suitable for mining-induced stress actual measurement under various surrounding rock conditions, and many defects of a traditional testing method are effectively overcome; the method is simple, testing is reliable, precision is high, and very important application and popularization value isachieved.

The invention provides a minimal fluidflowmeter, and aims to solve existing problems; the revolve directions of testing gears an existing minimal fluidflowmeter are unstable in testing; the mutually engaged testing gears can form frequent rotations in forward and backward directions, and the testing gear revolve direction is very unstable; the testing gears need certain time to form stable revolution, such impact will affect the testing accuracy, thus reducing testing gear service life, and affecting gear shaft and bearing service life; the minimal fluidflowmeter can solve said problems, and is provided with a housing; a fluid testing cavity is arranged in the housing; one side of the fluid testing cavity is provided with a fluid inlet, and the other side of the fluid testing cavity is provided with a fluid outlet; a pair of mutually engaged testing gears are arranged in the fluid testing cavity; a fluid shunting inlet is arranged between the fluid inlet and the fluid testing cavity. The minimal fluidflowmeter can be widely applied to minimal fluid flow measurements.

The invention relates to the technical field of pipeline monitoring, in particular to a pipeline corrosion monitoring method and system and electronic equipment, and the method comprises the steps: obtaining a first magnetic field gradient modulus and a second magnetic field gradient modulus, and determining a damage grade index of a second preset position according to the first magnetic field gradient modulus and the second magnetic field gradient modulus, and then determining a current ratio between the current defect stress value of the second preset position and the yield strength corresponding to the material of the to-be-monitored pipeline according to the damage grade index, and performing early warning according to the current ratio and a preset early warning strategy, so that the stress safety state of the second preset position of the to-be-monitored pipeline can be effectively evaluated. And the accuracy of test results is high.

The invention discloses a torque test platform for shifting fork double rotors. The torque test platform comprises a supporting frame, a torque testing device and a bearing driving mechanism. The bearing driving mechanism comprises a shifting fork dual-rotor placing disc which is arranged on the supporting frame in a sliding manner and is used for bearing the shifting fork dual rotors, an elastic piece which is arranged on the supporting frame and is used for enabling the shifting fork dual- rotorplacing disc to tend to move towards one side close to the torque testing device, and a locking mechanism which is used for keeping the shifting fork birotor placing disc fixed relative to the support frame. The shifting fork dual-rotor placing disc comprises an initial position and a testing position, when the shifting fork dual-rotor placing disc is located at the initial position, the elastic piece is in a compressed state, the locking mechanism is in a locked state, and the shifting fork dual rotors are separated from the torque testing device; when in the test position, the elastic piece is in an extended state, the locking mechanism is in an unlocked state, and the shifting fork dual-rotor is in transmission connection with the torque testing device; a user can conveniently detect the shifting fork dual-rotor equipment, and the quality, efficiency and precision of detection work are improved.