93results about How to "The test method is reliable" patented technology

An adhesive shearing strength between surface layers test method is a method for effective evaluation of the shearing strength of adhesive materials between surface layers, especially an easier solution whose test mode is also easier of the current problem that the shearing strength of adhesive materials between surface layers is inaccurately tested because of a unreasonable loading method. This method has the following steps: 1. indoor test: step one, preparing a sample and fixing the sample; step two: starting a motor and do a twisting and shearing test; step three, collecting and analyzing data. 2. Field test: step one: drilling a core of the surface layer, but not taking it out, and then drying the upper surface of it with hot wind; step two, bonding a shearing test fixture head and a core sample together; step three, implementing a twisting and shearing test after 30 minutes; step four, collecting and analyzing the data.

The invention provides a device for testing rock fracture seepage parameters under high temperature and high pressure conditions. The device at least comprises a tester framework, wherein a tester three-axis cylinder and a pressure head system are mounted in the tester framework, the pressure head system comprises an upper pressure head and a lower pressure head, and cylindrical samples are placed between the upper pressure head and the lower pressure head; the upper pressure head and the lower pressure head are mounted on the tester three-axis cylinder and are driven by the tester three-axis cylinder to pressurize the samples; a seepage water inlet is formed in the lower pressure head, a seepage water inlet pipe is arranged on the lower pressure head, a seepage water outlet is formed in the upper pressure head, and a seepage water outlet pipe is arranged on the upper pressure head; and an oil delivery pipe is connected to the tester three-axis cylinder, the other ends of the seepage water inlet pipe and the seepage water outlet pipe are connected with a seepage control system, and the other end of the oil delivery pipe is connected to a confining pressure control system. According to the device and the method, deficiencies in the prior art are solved, a seepage test under the high temperature and high pressure conditions can be realized, and the heat exchange efficiency in the seepage test can be tested. The device and the method have important significances to terrestrial heat exploitation.

The invention relates to a large transformer, in particular to a test method for large transformers. A large transformer differential protection system test method comprises a different protection relay of a transformer, a phase meter and an ammeter and comprises the steps of: 1, selecting the ranges of the phase meter according to the test current for the check of a phase angle; switching the display picture of the differential synthetic protection relay to a differential current display unit; 2, connecting a power supply, utilizing the ammeter and the differential synthetic protection relay to check the current passing the transformer; 3, utilizing the phase meter at the current input of the differential protection relay to check and record the phase difference of the cophase currents at two sides; 4, simulating the fault state of the transformer, measuring the phase angle and the detection differential current on the relay, confirming the reliable operation of the differential protection relay under the default state; 4, ending the test, turning off the power supply and recovering former wires.

The invention relates to a method for quickly detecting the water content of an emulsified asphalt cold-recycling mixture. The method comprises the following steps: (1) mixing an emulsified asphalt cold-recycling mixture sample according to the target mixture proportion design, or taking a sample from a production field; (2) weighting to obtain the mass of a beaker; (3) weighting to obtain the total mass of the beaker and a mixture; and (4) pouring out the emulsified asphalt cold-recycling mixture, weighting to obtain the total mass of the beaker, and emulsified asphalt, water, fine aggregates and the like adhered to the beaker, calculating a standard adherence rate P and an actual adherence rate P' of different external water blending quantities, and drawing a standard curve as an adjustment reference by taking the external water blending quantities as a horizontal ordinate and taking the adherence rates as a vertical coordinate. According to the method, test data is accurate and reliable, a test process is simple and quick, the water content can be monitored in real time during production of the emulsified asphalt cold-recycling mixture, the external water blending quantities are regulated, a wrapping effect of the emulsified asphalt and a compaction effect of the mixture are ensured, and an effective method is provided for production quality control over the emulsified asphalt cold-recycling mixture.

The invention relates to a medical graft, which is applied to various artificial prosthesis cardiac valves. A fine structure form on the surface of an artificial cardiac valve is designed through determining the structural geometric parameters that are a, b, and h according to a biological prototype of the cardiac valve, the apparent contact angle calculation formula of the surface which is denoted by the geometric parameters is deduced, the proper fine structural geometric parameters are determined according to the calculation formula to lead the apparent contact angle on the cardiac valve surface to be larger than 150 degrees, so as to gain a more ideal super-hydrophobic surface; then a template which is provided with a fine structure surface is processed by utilizing the technology of femtosecond laser machining, and is washed, dried and processed through the silanization treatment; a PDMS valve surface which has the same fine structure with the template is copied by using a soft lithography method. The valve surface structure made by the invention is stable, has obvious characteristics of anticoagulation resistance and drag-reduction, effectively prevents the thrombosis, is hard to be damaged when being used for a long time, and is reusable without damage and deformation. Therefore, the mass production can be completed. In addition, the test method is simple and reliable.

The invention relates to an output performance test method for a stacked piezoelectric ceramic driver, and belongs to the field of vibration inhibition of wind tunnel model test. The method is suitable for the driver of a wind tunnel active vibration inhibition pole. According to the method, an output performance test system composed of a measurement control system, a pressure sensor, a foil gauge, a stacked piezoelectric ceramic driver and a computer is used for test. The output performance test system of the stacked piezoelectric ceramic driver is installed on a pedestal, fastening nuts areadjusted according to an experiment requirement so that number of the pressure sensor reaches a predetermined pretightening force value, and the measurement and control system is operated to conduct the experiment. The computer and the measurement control system are used to collect strain and pressure information, and carry out post treatment. The test method is simple, reliable and precise, whenthe experiment condition changes, it is only required to adjust an experimental device simply, and use is convenient and practical.

The invention discloses a device and a method used for testing the flame height of lithium battery combustion. The device comprises a test box, a heating device, a camera and a smoke evacuating device. An air inlet is arranged in a corner at the bottom of the test box. An air outlet is arranged in a corner at the top of the test box. Anemometers are arranged at the air inlet and the air outlet. The camera is arranged outside a test room and a lens faces a lithium battery. A gas collecting cover of the smoke evacuating device is arranged in the test box and faces the lithium battery. During combustion, the lithium battery is arranged on the heater. After the combustion is finished, an air extracting pump is opened to evacuate smoke. A combustion video of the lithium battery is converted into an image and the image is subjected to image processing by the Matlab software. Thus, the flame height of the lithium battery combustion is obtained.

The invention discloses a cement concrete anti-thaumasite form of sulfate attack (TSA) erosion acceleration test device. The device comprises a low-temperature box, a pulse generator, an electrode plate and at least one corrosion pool, wherein a corrosion groove for mounting a concrete test sample is formed in each corrosion pool; a riffle groove for permeating sulfate solution into the corrosiongroove is formed out of the corrosion groove; the electrode plate comprises a positive electrode plate, a negative electrode plate and small holes for seepage; the small holes for seepage are formed in the positive electrode plate and the negative electrode plate; the positive electrode plate and the negative electrode plate are connected with the pulse generator respectively; the corrosion pool is placed into the low-temperature box; and the interface of the corrosion groove and the walls of the riffle groove at the two ends is a comb-like plate. The invention also provides a cement concreteanti-TSA erosion acceleration test method. The pulse generator applies electroosmosis pulse to the two ends of the concrete, so the speed of corrosion caused by that the sulfate solution is permeatedinto the concrete at low temperature is accelerated and the test time is reduced. The test device is simple and easy to operate and has low cost. The test method is simple, reliable and rapid.

The invention discloses a determination method for a gap distance of a submarine explosive. The determination method comprises the following operating steps: selecting a water area with stationary or slowly flowing water, wherein the depth of the water area is more than 5 m; preparing a transverse bar meeting needs of a gap distance test; standardly preparing an active cartridge bag and a passive cartridge bag both with a diameter of 35 mm and prescribed density from a blasting charge, wherein the mass of the active cartridge bag and the passive cartridge bag is 150 to 200 g; and inserting a detonator No. 8 into one end of the active cartridge bag, binding the active cartridge bag and the passive cartridge bag on the transverse bar at a predetermined interval, allowing a transverse bar unit to sink into water with sinking depth being at least 3 m, detonating the active cartridge bag at a safe distance, determining whether there is induced detonation according to damage conditions of the passive cartridge bag and adopting a maximum distance obtained in three successive times of induced detonation as the gap distance. The gap distance measured by using the method can reflect actual explosive properties of the explosive during underwater blasting.

The invention relates to a rapid battery detection device and a rapid battery detection system. The rapid battery detection device comprises a box for installing a plurality of batteries to be tested, and a detection element for detecting the batteries to be tested. The box comprises a first lateral side and a second lateral side that are opposite to each other. The box is provided with an accommodating chamber which is formed by recessing from the first lateral side toward the second lateral side and is used for accommodating the batteries to be tested; and the box is provided with a plurality of through holes running through from the second lateral side toward the accommodating chamber. The detection element comprises a first testing plate outside the second lateral side and a second testing plate outside the second lateral side. On the first lateral side, the plurality of batteries to be tested that are installed inside the accommodating chamber is divided into n parallel lines; and the first testing plate is provided with n first testing strips corresponding to the n lines. On the second lateral side, the plurality of batteries to be tested that are installed inside the accommodating chamber is divided into m parallel lines; and the second testing plate is provided with m section testing strips corresponding to the m lines. The direction of the first testing strips is different from the direction of the second testing strips.

The invention relates to a testing system and method of a high-voltage processing plate of a thyristor, which is used for solving the problem that an integral function test can not be carried out on each unit of a TE (Tangent Elevation) plate on the spot. The testing system provided by the invention can detect each functional module of the TE plate and judges whether each function of the TE plateis correct or not. The testing method provided by the invention comprises a power supply test, a gate pole triggering test, a negative rechecking signal test, a low-voltage triggering test and a high-voltage triggering (BOD (Biochemical Oxygen Demand) protection triggering) test of the TE plate. The invention provides a convenient, reliable and comprehensive testing method and enhances the operating stability of the TE plate after installation, thereby enhancing the operating reliability of the whole system.

The invention aims at providing an electric heating tube testing device and method. The electric heating tube testing device and method are used for comprehensively and reliably testing the safety performance of electric heating tubes. The electric heating tube testing device comprises a metal testing barrel with a movable barrel cover. The upper portion of the testing barrel is connected with a liquid inlet pipe and an air exhaust pipe. The liquid inlet pipe is provided with a liquid inlet valve. The air exhaust pipe is provided with an air exhaust valve. The lower portion of the testing barrel is provided with a liquid outlet pipe and an air inlet pipe. The liquid outlet pipe is provided with a liquid outlet valve. The air inlet pipe is provided with an air inlet valve. The testing barrel is connected with an air pressure gauge, a hydraulic pressure gauge and a temperature gauge through pipelines. The barrel body of the testing barrel is connected with an earth terminal through a wire. The testing barrel is provided with a testing terminal communicated with the interior and the exterior of the testing barrel. The electric heating tube testing device is applicable to testing of various electric heating tubes, the electric heating tube testing method is convenient to implement, reliable and reliable, and factory testing of the electric heating tubes can be achieved.

The invention provides a real-time ultrasonic scanning device used during rock triaxial compression. The real-time ultrasonic scanning device comprises an axial pressing structure, a circumferential pressing structure and an ultrasonic scanning structure, wherein the axial pressing structure is an electro-hydraulic servo system (1), the circumferential pressing structure comprises an axial-penetrating cylinder barrel (9), the upper end and the lower end of the cylinder barrel (9) are respectively sealed by a top cover (3) and a bottom cover (14), the cylinder barrel (9), the top cover (3) and the bottom cover (14) jointly form a confining pressure chamber (7), a sample testing chamber (10) is arranged in the confining pressure chamber (7), and the ultrasonic scanning structure is a plurality of groups of ultrasonic scanning probes (13) connected to the outer lateral wall of the testing chamber (10). The real-time ultrasonic scanning device has the advantages that ultrasonic scanning can be performed on rock during the rock triaxial compression to monitor the generation of the internal cracks of the rock in real time, accurate experiment data can be obtained, a reliable testing and experiment result can be provided for a project, and a reliable testing method is provided for the prevention of project disasters and accidents caused by the cracks.

The invention relates to a snowmelt long-term efficacy testing method of a snowmelt asphalt mixture. The method comprises the steps of using a snowmelt asphalt mixture as an experimental group, using a common snowmelt asphalt mixture without a snowmelt additive as a blank group, using the snowmelt additive as a reference group in an experiment, respectively putting the mixtures and the additive into water, testing electrical conductivity at regular time intervals, performing calculation to obtain the snowmelt long-term efficacy time of the snowmelt asphalt mixture when the electrical conductivity in the snowmelt additive reaches a maximum value. By means of the snowmelt long-term efficacy testing method of the snowmelt asphalt mixture, test data are accurate and reliable, the timeliness of ice and snow melting effect on the snowmelt asphalt road surface in actual engineering can be predicted through an indoor test, and the testing method is used for indoor evaluation on snowmelt long-term efficacy of the snowmelt asphalt mixture.

The invention provides a rocket-borne equipment vibration test system and test method for loading prestress, and solves the problems of complex test system, high test cost and complex actual operationwhen the existing rocket-borne equipment simulates a static load and a dynamic load at the same time. The rocket-borne equipment vibration test system for loading the prestress comprises a vibrationtable, a clamp, an elastic rope, a dynamometer, a force transmission rope, a gantry frame, a weight and fixed pulleys, wherein rocket-borne equipment is mounted on the vibration table through the clamp, the vibration table is used for providing a test dynamic load, one end of the elastic rope is connected with the prestress loading position of the rocket-borne equipment, the other end of the elastic rope is connected with the dynamometer, the N fixed pulleys are arranged on the gantry frame and can move up and down or left and right along the gantry frame so as to adjust the loading directionof prestress, one end of the force transmission rope is connected with the dynamometer, the other end of the force transmission rope penetrates through the N fixed pulleys, and the weight is hung at the tail end and used for providing a test static load.

The invention discloses a grain composition testing method of over-coarse-grained soil. The problems of grain size testing of a traditional soil body are solved, and the problem is solved that debrisgranularity and grain composition of the over-coarse-grained soil and a coarse-particle-containing soil body are difficult to accurately grasp. The method includes the following steps of measuring themass proportions of all soil fractions of soil grains with the equivalent grain size being larger than D through a linear density method, calculating the total mass proportion of all the soil fractions of the soil grains with the equivalent grain size being larger than D, calculating the total mass of the soil in combination with the weighed weight of the soil grains with the equivalent grain size being smaller than or equal to D of an indoor sample, obtaining the mass of all the soil fractions of the soil grains with the equivalent grain size being smaller than or equal to D through an indoor sieving method, calculating the mass ratio of all the soil fractions of the soil grains with the equivalent grain size being smaller than or equal to D, and drawing a composition curve through the result. The method has the advantage of meeting the requirement for precisely analyzing the grain size and components of the over-coarse-grained soil and other soil bodies with large-grained particles.

The invention provides a cell short circuit testing device and a testing method thereof as well as a cylindrical cell piece production winder. The cell short circuit testing device comprises a feedingline, a short circuit testing unit, a guide unit, a clutch unit and a reset unit; the feeding line comprises a transmission belt with a plurality of fixtures and a motor for driving the transmissionbelt to transmit; the detection end of the short circuit testing unit faces the feeding line; the guide unit is provided with guide rails; the short circuit testing unit is connected in a slidable mode to the guide rails; the driving end of the clutch unit is connected with the output end of the motor; the driven end of the clutch unit is connected with the short circuit testing unit; the clutch unit drives the short circuit testing unit to slide along the guide rails; and the reset unit is connected with the short circuit testing unit and drives the short circuit testing unit to slide along the guide rails. The invention further provides the testing method and the cylindrical cell piece production winder. The cell short circuit testing device and the testing method thereof as well as thecylindrical cell piece production winder all have the advantages of a cell short circuit testing device which is reliable to work and long in short circuit testing time on a cell.

The invention discloses a pressurization device, a tube wall crack propagation speed testing device, a pressurization method and a testing method. The pressurization device includes a high-pressure gas delivery pipe for delivering high-pressure gas to a metal tube, an A-class air compressor, a B-class air compressor and a C-class air compressor; the high-pressure gas delivery pipe is communicated with the metal tube through a first-level valve, the A-class air compressor is arranged on the high-pressure gas delivery pipe, the tail end of the high-pressure gas delivery pipe is provided with a tee converter, and the tee converter is connected with the B-class air compressor and the C-class air compressor. The pressurization method adopts a stepped-type interval paused pressurization process, a flexible transformation pressurization and pressure-relieving way and a whole-process multi-means monitoring, and can realize that the tube internal pressure of the metal tube gradually reaches a target value; according to the tube wall crack propagation speed testing device, a time probe unit closely adheres to the metal tube wall, and opening of the tube wall and disconnection of the time probe can be guaranteed to be simultaneously carried out.

The invention relates to a digital gyro stabilized platform, an on-line frequency characteristic soft testing system and a method thereof. The digital gyro stabilized platform employs a distributed innovation form by combing an embedded stable loop computer and a high-speed serial bus, and has the advantages of stable platform, small system scale, low power dissipation, and stronger control flexibility and function expansibility. The on-line frequency characteristic soft testing system is composed of the gyro stabilized platform and a test PC machine, the digital stable loop computer in the platform is used for realizing sweep-frequency signal excitation, data acquisition and buffer memory functions, and the test PC machine employs a least square fitting method to calculate the amplitude frequency characteristic and phase-frequency characteristic of the stabilized platform. The soft testing system has no applied auxiliary circuit and power supply, frequency characteristic tests of three stable loops of a platform body, an internal ring, and an external ring can be switched through software, during a switching process, first power-off and second electrification cannot be required for the platform, hardware cost for testing is reduced, and the platform has the advantages of simple and flexible process, and traceable process data.

The invention aims at providing a test circuit and test method of a parallel MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) inversion module, for testing the functionality of the parallelMOSFET inversion module and looking for the corresponding hidden trouble. The test circuit of the parallel MOSFET inversion module is formed by an inversion module to be tested, a load circuit, a primary power supply, an auxiliary power supply and a PWM signal generation circuit, wherein the output terminal of the PWM signal generation circuit is connected with the input terminal of the inversionmodule to be tested; two ends of the primary power supply are respectively connected with the power terminal of the inversion module to be tested and the ground terminal of the inversion module to betested to form a closed loop; the load circuit is formed by an adjusting resistor, a load inductor, a load resistor and a load capacitor, and the adjusting resistor is connected between the power terminal of the inversion module to be tested and the primary power supply in series; the series circuit formed by the load inductor and the load resistor is connected between the output terminal and theground terminal of the inversion module to be tested in series, and the load capacitor and the primary power supply are connected in parallel; and the positive and negative terminals of the auxiliarypower supply are respectively connected with the positive and negative power pins of a drive chip in the inversion module to be tested.

The invention provides an isolator reverse power tolerance test system and method. The method includes steps: an original single-carrier signal emitted by a signal source is amplified through a microwave power amplifier and provided to a first power meter and a vacuum tank through a first dual directional coupler; the first power meter measures a power value of the original single-carrier signal and forms a first power value; an isolator is arranged in the vacuum tank; the original single-carrier signal is provided to a second forward coupler through the isolator and provided to a short circuit block through the second forward coupler; the original single-carrier signal enters the short circuit block for reverse transmission after delay, a reverse carrier signal is formed, and the reversecarrier signal passes through the second forward coupler and the isolator and is provided to the first dual directional coupler and a third power meter; the third power meter measures a power value ofthe reverse carrier signal and forms a third power value; a synthesis signal power value is obtained through calculation according to the first power value; and a reverse isolation degree is obtainedaccording to the synthesis signal power value and the third power value.

The invention discloses a digital integrated test technology of a high-pressure gas source system, relates to the field of gas source system detection. According to the technology, a control computer, an external gas source, a load, a stop valve K1, a pressure gauge P1, a solenoid valve, a stop valve K2, a first pressure transmitter, a tested high-pressure air passage system, a second decompressor, a first decompressor, a first overflow valve, a second overflow valve, a pressure gauge P2, a pressure gauge P3, a third pressure transmitter, a second pressure transmitter, a stop valve K4, a stop valve K3, a first flow meter and a second flow meter in connection are used. The integrated test method can be used to greatly reduce time and resource, prevent connection complexity and repletion of test pipelines, and enable test to be convenient and efficient; and the technology with safety design avoids hidden safety hazards and makes test safe and reliable.

The invention provides a set of complete method and a system for testing and assessing the application function and the security mechanism of electronic passports. The test is established on a software and hardware platform specially developed for electronic passport test, and the application command normalized test, the logic data structure (LDS) normalized test, the active authentication (AA) test, the passive authentication (PA) test and the basic access control (BAC) test are carried out, so the system for the function and the security mechanism of the electronic passports and the overall evaluation are obtained. The testing and assessing method has simple operation and reliable testing and assessing results, objectively and rightly reflects the normative performance and the security of the electronic passports, and has great significance on the development of the electronic card technology and the industry.

The invention relates to a test method for the stability of a POE packaging adhesive film for solar cells, which comprises the following steps: (1) laminating two POE packaging films to obtain a testsample, and recording the length L1 of the test sample; (2) flattening the test sample along the length direction and placing the test sample in a closed environment meeting certain conditions for pre-treatment; (3) taking out the test sample, stretching the test sample at a certain tension load along the length direction at 105 DEG C, restoring the deformation, and recording the length L2 after deformation restoration; and (4) determining that the test sample is qualified when |L2-L1| / L1 is smaller than or equal to a predetermined deformation rate, and determining that the test sample is unqualified when |L2-L1| / L1 is greater than the predetermined deformation rate. The relationship between the creep characteristic of POE and the outdoor stability of solar cells is discovered in the invention. The stability risk of solar cells due to the POE packaging film is evaluated by testing the creep characteristic of the POE packaging film under specific conditions. The test method is simple and reliable.

The invention discloses an expansion and contraction rate testing device and method for flat belt and high-place operation safety belt. The testing device comprises: a device supporting frame body; aclamping assembly which is installed on the device supporting frame body, wherein the clamping assembly comprises a first clamping part and a second clamping part which are arranged to be used for clamping the two ends of a sample to be detected respectively, the distance between the first clamping part and the second clamping part is adjustable, and the first clamping part and the second clampingpart are used for applying tension to the sample to be detected; a tension sensor which is used for testing the actual tension borne by the sample to be tested; and a soaking assembly which is used for soaking the to-be-detected sample. The expansion and contraction rate testing device is simple in structure, convenient to use and reliable in expansion and contraction rate testing method, can meet the requirement for testing the expansion and contraction rate of the flat belt and the high-place operation safety belt, accurately measures the expansion and contraction rate of the flat belt andthe high-place operation safety belt, can objectively and truly evaluate the expansion and contraction performance of the flat belt and the high-place operation safety belt after being wetted by water, and helps to guide reasonable use of the flat belt and the high-place operation safety belt.

The invention discloses a positional accuracy testing method of a space manipulator in a thermal vacuum tank, and relates to the field of positional accuracy testing of space manipulators. The problem that the testing accuracy of the position of the space manipulator in the thermal vacuum tank is not high in the prior art can be solved. The positional accuracy testing method is characterized in that two tail end positions are chosen for the space manipulator, and two LVDT displacement sensors are arranged at each position in a square crossing mode; the initial displacement of the LVDT displacement sensors is guaranteed to be larger than the positional accuracy of the tested space manipulator so that the space manipulator can make contact with all the LVDT displacement sensors during reciprocating motion; the space manipulator is made to make plane motion on a steel plate in the states of normal temperature, high temperature and low temperature, and the space manipulator is controlled to make reciprocating motion at the two tail end positions; the measured value of the LVDT displacement sensors is obtained; with the normal temperature positional accuracy being the reference, and the positional accuracy in the X direction and the Y direction of the space manipulator under the high temperature environment and the low temperature environment is obtained. The positional accuracy testing method is used for conducting positional accuracy testing on the space manipulator in the thermal vacuum tank.

Provided is a device and method for testing shearing resistance adhesive strength of structural adhesive between a reinforcement material and concrete. The device is characterized by comprising an upper hanging support arranged at the outer edge of an upper concrete testing block and a lower hanging support arranged at the outer edge of a lower concrete testing block. A V-shaped protrusion is arranged in the middle of the bottom face of the upper hanging support, a V-shaped groove matched with the V-shaped protrusion of the upper hanging support is arranged in the middle of the top face of the lower hanging support, and the V-shaped protrusion rotates for a certain angle in pivoted mode around a contact line in the groove. The testing method includes the detailed steps that the upper hanging support is arranged on the lower hanging support, and the V-shaped protrusion is arranged in the V-shaped groove and fixed through locating strips; and the reinforcement material is adhered to lateral sides of the testing blocks through the structural adhesive, and adhesive area of the reinforcement material on the two testing blocks is equal. After the structural adhesive is fully cured, all locating cover plates and all locating strips on one sides of the concrete testing blocks are dismantled, and pressure is exerted to enable the concrete testing blocks to have rotation tendency around the V-shaped protrusion in pivoted mode, so that shearing adhesive power is generated, when a limit value is reached and the adhesion is damaged, the shearing resistance adhesive strength can be calculated.

The invention discloses a deep sea durability testing device and method of ocean instrument equipment. The device comprises a first glass floating ball section, and a first water depth adjusting section and a second water depth adjusting section are connected below the first glass floating ball section; a second glass floating ball section and a tested test section are arranged between the first water depth adjusting section and the second water depth adjusting section; and the second glass floating ball section and the tested test section are arranged at intervals in a multi-group circulatingmanner, a third glass floating ball section is arranged below the second water depth adjusting section, an acoustic releaser is arranged below the third glass floating ball section, and a gravity anchor is arranged below the acoustic releaser. The beneficial effects of the invention are that the device can provide a motion test environment with a certain depth for one or more instruments at the same time, can provide various test lengths, and can be flexibly adjusted according to test requirements; the testing device can be repeatedly arranged and recovered and is high in utilization rate; and according to the testing method, a test risk and cost are reduced to the greatest extent.

The invention discloses a concrete sample temperature anti-crack test device. The device comprises a temperature expansion loading assembly for shaping concrete samples, a maintenance device for maintaining the concrete samples, and an intelligent detection and monitoring system for detecting anti-crack performance of the concrete samples and monitoring the maintenance device. The temperature expansion loading assembly comprises a temperature expansion annular inner mold, an annular outer mold and a base plate. An annular space is formed between the temperature expansion annular inner mold andthe annular outer die mold. According to the test device, through setting of the temperature expansion loading assembly, the maintenance device and the intelligent detection and monitoring system, aconcrete sample temperature anti-crack test under a temperature effect condition can be carried out effectively and rapidly. The invention also discloses a concrete sample temperature anti-crack testmethod. According to the test method, the anti-crack test of the concrete samples under the effect of the temperature can be carried out accurately and reliably.