3371 results about "Tester device" patented technology

The present invention relates to an in-situ micro-nano impact indentation testing instrument, falling within the technical field of material micromechanical testing. The instrument comprises a nitrogen generation module, an environmental chamber, a high / low temperature loading module, an “optical-infrared” in-situ monitoring module, an “electromagnetic-piezoelectric” coupling impact module, etc. After the nitrogen is introduced into the environmental chamber and the test area is determined by microscopic imaging, the “electromagnetic-piezoelectric” coupling impact module can drive an indenter to indent a specimen. An acoustic emission sensor embedded in the high / low temperature loading module can monitor the surface crack propagation of the specimen. The “optical-infrared” in-situ monitoring module can perform real-time high-speed optical imaging and infrared imaging on the impact indentation process. The present invention can perform micro-nano impact indentation testing on the material at high or low temperatures.

The invention discloses a novel concrete pavement hardness detection device, and belongs to the technical field of detection. The invention discloses a novel concrete pavement hardness detection device, and belongs to the technical field of road engineering detection. The device comprises a springback tester, an ultrasonic tester and an analysis system, and equipment credibility parameters are generated through a springback confidence model (quantitative impact energy / angular deviation) and an ultrasonic confidence model (quantitative frequency / probe centering error); combining a pavement characteristic model (analyzing water content / temperature / steel bar density) to output an environment adaptation coefficient; further dynamically calculating a springback risk coefficient and an ultrasonic risk coefficient based on a risk model (fused vibration / carbonization depth); and finally, outputting a calibration intensity value through the intensity correction model. The method solves the defects of weak anti-interference capability and insufficient precision of a traditional method, effectively improves the detection efficiency, and is suitable for high-precision scenes such as expressways and airport runways.

According to the power cable multi-defect nondestructive testing method and system based on the broadband impedance spectrum, impedance characteristics of a cable under different frequencies are measured, frequency domain data are converted into time domain data through inverse Fourier transform, and accurate positioning and evaluation of internal defects of the cable are achieved; the invention discloses a power cable multi-defect nondestructive testing method based on a broadband impedance spectrum. The method comprises the following steps: step 1, signal output and acquisition; the method comprises the steps that a broadband impedance spectrum tester is used for outputting a broadband sine wave voltage signal, frequency domain measurement data are collected, and the frequency domain measurement data are impedance data of a cable under different frequencies; 2, carrying out time-frequency conversion; converting the frequency domain measurement data into time domain data through inverse Fourier transform, generating a time-amplitude curve, and analyzing the electrical characteristics of the cable; 3, establishing a defect identification model; analyzing the electrical characteristics of the cable at different frequencies by using the transmission line model, and evaluating the state of the cable; step 4, defect positioning and evaluation; and 5, displaying and analyzing a result.

The invention relates to the technical field of resistance test equipment, in particular to a portable loop resistance tester, which comprises a test and acquisition module used for acquiring current and voltage signal data of a tested product, analyzing a loop contact state and calculating a loop resistance value and impedance characteristic parameters; the control and output module is used for performing high-precision constant-current output and self-adaptive adjustment; the interaction and printing module is used for receiving a user operation instruction and displaying current and voltage signal data and a resistance value of a tested product, and meanwhile, printing is performed through a built-in thermal printer according to the user instruction; the power supply module is used for stably supplying power to equipment; and the intelligent diagnosis module is in butt joint with the cloud case library, automatically diagnoses related defect types influencing the loop resistance test, and generates a health assessment report. Therefore, the problems of small current output, insufficient sampling precision, single operation mode and the like in the prior art are solved.

A test system has ovens configured to hold devices under test (DUTs), DUT switches, each connected to the DUTs in an oven, splitters, each splitter connected to a DUT switch, an instrument switch connected to one output of each splitter, the other output of each splitter connected to a test instrument, and one or more processors to control the instrument switch to select one of the DUT switches connected to an oven, control the selected DUT switch to connect each DUT in the oven to a channel of the test and measurement instrument, use machine learning to tune the DUT to a set of parameters until the DUT passes or fails, repeat the connecting, tuning, and testing of each DUT until all DUTs in an oven have been tested, and repeat the selection and control of the DUT switches until each DUT in each oven has been tuned and tested.

The invention provides a performance testing device and method for relay protection, belongs to the technical field of circuit testing equipment, and solves the technical problems that the working intensity of operation and maintenance personnel is high due to the fact that an existing road is rugged and equipment is heavy, the temperature is high in summer, and mechanical equipment and the maintenance personnel are overheated due to the too high temperature. The performance testing device for relay protection comprises a moving box and an equipment cavity formed in the moving box, a mounting frame is rotationally connected in the equipment cavity, a relay protection tester is arranged on the mounting frame, a limiting plate is slidably connected to the mounting frame, and a regulation and control assembly for controlling the limiting plate to move is arranged on the mounting frame. And the limiting plate and the inner wall of the mounting frame clamp and fix the relay protection tester, and the bottom of the moving box is slidably connected with a driving box. The device has the advantages that the mobility of the device is achieved, the damping effect is achieved during moving, vibration to the device is reduced, and wind power can be generated to cool the device when the device is transferred and advances.

The invention discloses a battery performance testing system based on a deep-sea low-temperature ultrahigh-pressure environment, and belongs to the field of battery performance testing, the battery performance testing system comprises a console and a testing cabin, and a watertight connector is arranged in the testing cabin; through cooperative use of the console, the test cabin, the watertight connector, the electrochemical tester, the distributed optical fiber sensor and the macroscopic monitoring module, the limitation of single function in the prior art is broken through, the watertight connector guarantees electrochemical parameter transmission, and the distributed optical fiber sensor is implanted into a battery cell to realize internal strain temperature monitoring. And the macroscopic monitoring module covers appearance and size monitoring through integrated design of a fixing ring, and data of electrochemical performance of the battery, microcosmic material state (such as internal strain and temperature of the battery cell) and macroscopic galvanic pile structure change (such as appearance bulge and size compression) can be synchronously acquired through cooperation of the three modules, so that multiscale data support from microcosmic to macroscopic is provided for research personnel.

The invention relates to the technical field of generator test equipment, and particularly discloses a comprehensive test platform for a generator. The bearing assembly, the hoisting assembly and the testing instrument are installed on the vehicle body, the bearing assembly comprises two bearing arms and a driving mechanism, and weighing sensors are installed on the bearing arms and can be far away from and close to each other; the test instrument can obtain related test data based on weighing data fed back by the weighing sensor. The comprehensive test platform for the generator can move, can automatically complete loading and unloading of the diesel generator, does not need assistance of other equipment, and remarkably reduces the requirements for site conditions; data such as the whole machine weight, the fuel consumption rate and the operation stability can be measured, the test items are rich, and the functions are complete; and the transfer frequency in the comprehensive test process can be effectively reduced. After the test is completed, the diesel generator can be transferred and loaded to another test device, which is efficient and fast; and meanwhile, the method has the technical advantages of good applicability, easiness in implementation, relatively low cost and the like.

The invention discloses a gear calibration method for a 3D Hall type combination switch, and the method comprises the steps: starting an upper computer, notifying a six-axis force control robot and a CAN bus tester to prepare, enabling the robot to insert a test sleeve into a switch driving lever, and calibrating the test sleeve to a switch center; the six-axis force control robot pokes a poking rod to test a first gear, collects a force-angle-time array and X / Y / Z magnetic field data of a 3D Hall sensor, calculates alph and beta angles, constructs a correlation array and sends the correlation array to an upper computer; the upper computer generates a multi-dimensional curve graph, analyzes the maximum operating force F1 and the angle S1, finds out a force control point F3 and an angle S3 which are equivalent to the F1 after the S1, and determines the trigger time T3 and calibration data alpha < ph3 >, beta < 3 >, X3, Y3 and Z3; repeating the steps to obtain calibration data of each gear, and after the upper computer is verified to be qualified, writing a product by the CAN bus tester to complete calibration; and 6, the axial force control robot tests all gears, and the CAN bus tester detects the triggering condition and verifies the calibration effectiveness. Problems of early triggering, delayed triggering and the like of the switch can be avoided, and the gear function is accurately triggered.

The invention relates to the field of performance testing of high-precision fiber-optic gyroscopes, and discloses an automatic testing method and system for the extinction ratio of a high-precision fiber-optic gyroscope, and the method comprises the following steps: constructing a signal light path and a reference light path, and combining the output light of the signal light path and the reference light path into a combined light signal in an orthogonal polarization state; integrally measuring the extinction ratio of the combined optical signal by using an extinction ratio tester to obtain a measured value; the control unit compares the measured value with a target value of 0dB and generates a control instruction based on a difference value; the voltage controller automatically adjusts the voltage of the integrated optical modulator in the signal light path according to the instruction, and iterative optimization is carried out through closed-loop feedback until the actually measured extinction ratio reaches a target value; and finally recording and solidifying the optimal voltage value. According to the invention, single and accurate extinction ratio overall measurement is used for replacing two times of error-prone independent optical power measurement, full-automatic closed-loop control is realized, the precision, efficiency and consistency of optical power balance are remarkably improved, and the skill requirements on operators are reduced.

The invention relates to the field of air tightness testers, and discloses an automatic data calibration method and system for an air tightness tester, and the method comprises the steps: obtaining a temperature sensor value T, a pressure sensor value P and a humidity sensor value H from the air tightness tester; performing three-dimensional coordinate positioning in the three-dimensional coordinate space to obtain a coordinate position C1; mapping the coordinate position C1 to a distribution model for coordinate mapping by using a coordinate transformation matrix M; obtaining a compensation parameter set S1 based on the error characteristic value E and the compensation parameter combination S; adjusting the compensation weight of each environment parameter according to the compensation parameter set S1; fusing the adjusted compensation weight with the error characteristic value E and the compensation parameter combination S to obtain a comprehensive compensation coefficient Kc; and performing correction processing on the original measurement data by using the comprehensive compensation coefficient Kc. The method has the advantages that automatic extraction and dynamic adjustment of calibration parameters are achieved when the test environment changes.

The invention discloses a transformer substation secondary equipment fault detection platform and an analysis method. The platform comprises a mobile bearing unit, an instrument integration unit, an integrated power supply and safety protection unit, an image acquisition unit and a data fusion analysis unit. The platform carries a relay protection tester, a mutual inductor comprehensive characteristic tester and an insulation resistance meter in an integrated manner, and is equipped with an image acquisition system, so that convenient movement and multi-source data acquisition of detection equipment are realized. And the data fusion analysis unit adopts a multi-modal fusion deep learning model to carry out collaborative analysis on the electrical detection data and the visual data, and outputs a diagnosis conclusion containing accurate fault positioning and basic causes through feature extraction and fusion. According to the method, the problems of low efficiency and inaccurate diagnosis caused by inconvenient equipment carrying and data isolated analysis in traditional debugging are effectively solved, and the intelligent level, the safety and the reliability of operation and maintenance of the secondary equipment of the transformer substation are remarkably improved.

The invention relates to the technical field of tablet hardness testers, in particular to a tablet hardness tester with a protection structure. Comprising a machine frame, a testing frame, a microcontroller, a rotating frame and a driving gear ring, the rotating frame and the driving gear ring can independently rotate, a feeding and discharging station, a detecting station, a cleaning station and an overturning station are sequentially arranged on the machine frame in the clockwise direction, four testing systems are installed on the rotating frame, and an overturning gear ring and a reset gear ring are installed on the machine frame. A first visual probe, a capacitive humidity sensor, a glass cover and a negative pressure rotating cylinder are installed on the testing frame, a second visual probe is arranged at the axis position of the glass cover, the data ends of the first visual probe, the capacitive humidity sensor and the second visual probe are all in data connection with the microcontroller, and a negative pressure cleaning assembly is arranged in the negative pressure rotating cylinder. According to the invention, through the collaborative design of independent driving of the double servo motors and circulating stations of the four test systems, an efficient and continuous detection process is constructed.

The invention provides a cable testing method and a small handheld cable tester. The method comprises the following steps: carrying out wavelet transform noise reduction, Z-score standardization and time sequence dynamic regularization on original cable data; then constructing a geometric deep learning network by using a dispersed self-organizing structure of the rotating cube set, and extracting multi-modal depth features; fusing different modal features through a spiking neural network gating mechanism and a cross-modal attention mechanism; and finally, fault classification is carried out based on a differential evolution optimized neural network, and fault location is realized by combining a time sequence generative adversarial network and a dynamic probability neighborhood growth clustering algorithm. The system also evaluates the data contribution degree of each modal through information entropy and mutual information analysis, and optimizes the model performance by using adaptive weight distribution and lightweight neural network technologies. According to the invention, various fault types such as cable breakage, short circuit, insulation aging, poor contact and the like can be identified and positioned with high precision, and the efficiency and the accuracy of cable maintenance are remarkably improved.

The utility model discloses a lithium battery diaphragm tensile strength tester, relates to battery diaphragm technical field, including the clamping subassembly, it is equipped with two groups, each group of clamping subassembly includes cross bar, connecting piece, linkage rod and splint, the cross bar is connected to vertical plate side, cross bar far away from vertical plate one end is rotatingly connected with connecting piece, and the connecting piece is connected with the linkage rod. The connecting pieces and the top of the transverse rod are arranged in an acute angle mode, the other ends of the connecting pieces are rotationally connected with the linkage rods, the linkage rods are rotationally connected with the clamping plates, a middle rod is rotationally connected between the two linkage rods, and an elastic piece is arranged between the middle rod and the transverse rod. The group of clamping assemblies stretch the diaphragm in the direction far away from the fixed end through the horizontal moving structure, and when the vertical plate moves to drive the connecting piece to rotate, the upper linkage rod and the lower linkage rod are further driven to rotate in opposite directions, so that the clamping plates can clamp the tested diaphragm more and more tightly, and the tested diaphragm can be prevented from falling off.

The invention discloses a testing device for LCD (liquid crystal display) production, and particularly relates to the technical field of LCD production, the testing device comprises a power tester, a voltage regulating mechanism and a testing mechanism, and a supporting mechanism, a rotating mechanism and a controller are arranged above the testing mechanism. Through the synergistic effect of the testing mechanism, the conveying mechanism, the supporting mechanism, the rotating mechanism and the adsorption mechanism, automatic testing and sorting are achieved; according to the device, a sensor is adopted to trigger an automatic testing process, a rotating mechanism and an adsorption mechanism which are driven by an electric oil cylinder are combined, automatic adsorption, multi-section type rotation (90 degrees anticlockwise / 3 degrees clockwise / 6 degrees anticlockwise / vertical downward movement) and accurate positioning of the display screen are completed, traditional manual operation is replaced, and the testing efficiency is remarkably improved; according to the switching assembly, through the linkage design of a magnetic block and a metal limiting block, automatic distribution of qualified products and unqualified products is achieved in cooperation with a discharging pressing rod and a waste pressing rod, secondary sorting is avoided, and the production safety is improved.

The invention provides a wafer-level cluster coplanar waveguide electrode array, a preparation method and a test system. The coplanar waveguide electrode array comprises an insulating substrate and a plurality of coplanar waveguide electrodes which are arranged in a periodic array; each coplanar waveguide electrode comprises a central transmission section, a probe pad and a gradual transition section; through the design of the central transmission section and the gradual transition section of the coplanar waveguide configuration, the whole-course impedance matching from an external probe to a nano gap is ensured, so that nanosecond and even picosecond-level ultrafast electric pulses can be transmitted to the cluster function unit with extremely low loss and distortion; through overlay and multi-step photoetching and in combination with a negative feedback electromigration technology, a nano gap is manufactured with high success rate, and a cluster function unit is integrated; besides, a test system integrating a coplanar waveguide electrode array and a high-end test instrument is used for exciting and capturing the ultrafast response of a cluster functional unit, and the single write-in time of a cluster device is directly pushed to a subnanosecond level (lt;

An electric-tool-torque control system includes a torque tester, a force-multiplier structure, and an electric tool. The torque tester includes a detection shaft and a communication module. The force-multiplier structure includes a force-output end, a force-input end, a signal transmission unit, and a storage unit. The electric tool includes a force-output terminal, a control circuit, and a signal transmission module. The signal transmission module is electrically connected to the control circuit. The force-multiplier structure is assembled onto the torque tester. A test data is transmitted to the signal transmission unit through the communication module, and is transmitted from the signal transmission unit to the storage unit for storage. The signal transmission unit transmits the test data to the signal transmission module. The signal transmission module transmits the test data to the control circuit. The control circuit drives the force-multiplier structure to rotate based on the test data.

Disclosed in the present invention are a feeder automation test method and apparatus, a device, and a storage medium. The method comprises: calculating a voltage effective value and a current effective value of each node in a distribution network framework under different fault handling section conditions of a feeder automation system; sending the voltage effective values and the current effective values to a corresponding tester, such that after receiving the voltage effective values and the current effective values, the tester converts the voltage effective values into an analog voltage waveform, converts the current effective values into an analog current waveform, outputs the analog voltage waveform and the analog current waveform to a corresponding field power distribution terminal, and returns switch position change information of the field power distribution terminal; and comparing the switch position change information with preset standard feeder automation action logic in a corresponding fault handling section condition and then, on the basis of a comparison result, obtaining a feeder automation test result. The present invention can improve the reliability of feeder automation tests.

The invention provides an AC / DC charging pile electric energy metering verification method based on remote data comparison, and belongs to the technical field of electric energy metering verification, and the method comprises the steps: S1, installing a 0.05-level lightweight switching tester and a 4G / 5G communication module, and carrying out the real-time data uploading and instruction receiving between a charging pile and an electric vehicle, clock synchronization between devices is achieved through a satellite time service protocol, a precise time reference is provided for subsequent data comparison, CP and PE voltage and pulse width duty ratio changes are monitored in real time through a PWM signal acquisition module for an alternating current charging pile, and the charging stage is automatically judged in combination with handshake protocol characteristics in regulations; for the direct current charging pile, the CST and CSD frames in the BMS communication message are analyzed, and starting and stopping are extracted in combination with the state machine in the charging stage, so that automatic identification and time marking of the charging process without human intervention are realized, the accuracy and automation level of judgment of the charging process are improved, and a reliable time basis is provided for remote verification.

The invention provides an ESC controller fault injection test system. The system comprises a programmable power supply, a fault simulation development board, a probe, an upper computer, a CAN tester and a to-be-tested ESC controller. Wherein the upper computer is used for controlling the programmable power supply to provide a current signal and a voltage signal to the fault simulation development board through the first communication line; the upper computer is also used for sending a fault simulation instruction to the CAN tester through the second communication line; the CAN tester is used for converting the fault simulation instruction into a CAN instruction and providing the CAN instruction to the fault simulation development board through a third communication line; the fault simulation development board is connected with the ESC controller to be tested through a probe, and the fault simulation development board provides a power supply environment and a fault environment for the ESC controller to be tested based on the CAN instruction; the ESC controller to be tested is used for determining a fault code according to the power supply environment and the fault environment and feeding back the fault code to the CAN tester, and the CAN tester converts the fault code into fault information and feeds back the fault information to the upper computer. And the fault injection test can be automatically realized.

The invention relates to a device test method and device, electronic equipment and a storage medium, and the method comprises the steps: determining a current instruction in an instrument control instruction set based on the instruction sending sequence information of an instrument control instruction set corresponding to a current test item of a to-be-tested device; based on the test operation type of the current instruction and the test operation type of a previous instruction of the current instruction, judging whether the current instruction and the previous instruction meet a preset parallel execution condition or not; the previous instruction is a control instruction of which the sending sequence is the previous order of the current instruction in the instrument control instruction set; and if the preset parallel execution condition is met, issuing the current instruction under the condition that the previous instruction is sent completely, so that the current instruction and the previous instruction are executed asynchronously and parallelly until execution response data of the instrument control instruction set is obtained. According to the technical scheme provided by the invention, the communication time consumption of instruction issuing and response receiving of software can be greatly reduced, and the instruction execution efficiency of the test instrument is improved, so that the test efficiency of a single device is improved.

The invention relates to the technical field of mechanical sensors, and discloses an automobile wire harness terminal tension testing device and a detection method thereof.The automobile wire harness terminal tension testing device comprises a testing table, a conveying table and a conveying table are arranged on the two sides of the testing table respectively, a transmission device is arranged between the conveying table and the conveying table, a detection device is arranged on the conveying table, and a fixing piece is arranged on the conveying table; the transmission device comprises a rotating piece and a clamping piece, and the detection device comprises a rotating piece, clamping jaws arranged on the periphery of the rotating piece, an adjusting piece for controlling displacement of the clamping jaws, a tension sensor and a storage box. According to the invention, through the arrangement of the transmission member, single transportation of the wire harness and tensioning of the wire harness, and the arrangement of the fixing member, the middle part of the wire harness is fixed, so that the problems that the wire part of the wire harness is in an unfixed state and the tension part applied by the tensile machine is borne by the wire, and therefore, after the tension tester applies the maximum tension value to the wire harness, the tension of the wire harness is not influenced are solved. And the detection result of the tensile force between the wire harness and the terminal is not accurate.

The invention relates to a multi-path power supply parallel automatic test system and a test method. The multi-path power supply parallel automatic test system comprises a main control module, an instruction scheduling module, a test instrument group and a plurality of test fixtures, each test fixture is used as an independent test channel with self-defined configuration; a request signal input end of the main control module is connected with a request signal output end of the independent test channel, a test signal input end of the main control module is connected with a test signal output end of the test instrument group, and a control signal output end of the main control module is connected with a control signal input end of the instruction scheduling module; the signal output end of the instruction scheduling module is connected with the signal input end of the test instrument group, and the test instrument group is used for executing corresponding test operation on the to-be-tested power supply according to the control signal; the testing efficiency is remarkably improved, manual operation is reduced, and the basic capability of automatic parallel testing of multiple power supplies is achieved.

The invention provides a chip substrate performance detection device and method, and belongs to the technical field of chip detection.The chip substrate performance detection device is characterized in that a partition plate is arranged in a detection shell to form a containing cavity and an equipment cavity, a detection isolation hood forming a detection cavity is arranged at the top of the partition plate, and a heating isolation hood forming a heating cavity is arranged at the bottom of the partition plate; the impedance tester is electrically connected with four groups of test chip probes mounted on the chip clamp and is used for acquiring an impedance spectrum sequence; the alternating current and direct current parameter tester is electrically connected with a probe matrix installed at the top of the detection isolation cover to obtain a bonding pad electrical performance matrix sequence, and the probe matrix is provided with a plurality of groups of displacement sensors used for obtaining vertical displacement feedback data; the control module is used for acquiring a substrate performance comprehensive evaluation report and transmitting the report to the display terminal; the chip substrate does not need to be transferred among different devices, a high-temperature and corrosion composite environment can be synchronously simulated, performance detection can be realized, and interference of environment change or mechanical contact on detection data in the transfer process is avoided.

The utility model provides a capacitor withstand voltage tester which comprises a control system, a power supply, a high-voltage programmable power supply and a display module, the power supply, the high-voltage programmable power supply and the display module are connected to the control system, a main control module, a capacitor withstand voltage test module, a power conversion module and a communication module are arranged in the control system, and the capacitor withstand voltage test module, the power conversion module and the communication module are connected with the main control module; the capacitor withstand voltage test module is connected with the capacitor test clamp, the capacitor test clamp is connected with the high-voltage programmable power supply, the capacitor test clamp is used for placing a to-be-tested capacitor, the capacitor withstand voltage test module is used for carrying out withstand voltage test on the to-be-tested capacitor, and the high-voltage programmable power supply is used for providing a high-voltage voltage source and carrying out power supply voltage configuration through the communication module; the power supply conversion module is connected with a power supply and converts external power supply voltage into working voltage of each module, and the display module provides interface display. According to the invention, multiple channels of capacitors can be tested at the same time, the channels do not influence each other, the convenience of capacitor detection in the design and production process of automobile electronic control products is high, and the cost is low.

The utility model relates to a detection device, and provides a cable immersion pressure resistance detection device, which comprises a shell, a control platform, a cover plate, a water tank, a water injection pipe and the like, a control platform is arranged on the front side of the shell and composed of a control module, an instrument, a screen and the like, a cover plate is rotatably arranged on the upper portion of the shell, a water tank is arranged on the lower portion in the shell, a water injection pipe is arranged on the lower portion of the water tank, and the other end of the water injection pipe penetrates out of the shell. According to the utility model, a program is preset in the control module, when cables of different models are tested, test conditions are automatically matched according to set data, the data can be recorded and fed back in real time in a test stage, meanwhile, a closed test instrument is arranged, the test cables are separated from an operator in the test process, and the test efficiency is improved. And potential safety hazards during working are reduced.

The invention provides a conduction tester for a wire harness connector, and particularly relates to the technical field of electrical testing of connectors, the conduction tester comprises a testing table plate and a tester body mounted on the top surface of the testing table plate, one side of the tester body is provided with an accommodating cabin, and one side of the tester body is provided with a display and a main controller; according to the conduction tester of the wiring harness connector, the limiting sliding block is stably matched with the limiting sliding rail on the cabin wall of the containing cabin, the probe seat can be accurately aligned with the connector in the clamping groove seat through the servo air cylinder, the probability of poor contact caused by manual insertion is greatly reduced, it is guaranteed that the test is smoothly carried out, and meanwhile the testing efficiency is improved. Through the cooperation of the pressure sensing part, the main controller and the force value regulator, the driving force of the linear driving part can be kept in a proper range, and the stable contact state of the probe and the connector is ensured, so that the test result is more reliable, and the test error caused by the contact problem is reduced.

The invention relates to the technical field of building materials, and discloses a method for determining the thickness of a concrete interface transition area based on nano scratches, which comprises the following steps: pretreating a to-be-detected sample; the method comprises the following steps: testing a to-be-tested sample through scanning based on a nano scratch tester to obtain a scratch depth-scratch distance mean value curve; based on the scratch depth-scratch distance mean value curve, boundary points between the base body and the interface transition area and boundary points between the interface transition area and aggregate are extracted, and the thickness of the interface transition area is calculated; calculating a fracture toughness mean value based on the scratch depth characterization value and the transverse scratch load, and drawing a fracture toughness-scratch distance mean value curve; and putting the boundary points into the fracture toughness-scratch distance mean value curve, and verifying the calculated thickness of the interface transition area. According to the invention, continuous and accurate measurement of the ITZ thickness is realized based on the difference between mechanical properties of different phases, and a scientific tool is provided for dynamic evaluation of concrete durability.

The utility model discloses a battery short circuit insulation test tool comprising a supporting mechanism, a bearing mechanism used for bearing a battery is arranged on the supporting mechanism, a positive electrode probe is arranged above the bearing mechanism, and a negative electrode probe and a shell probe are arranged on the bearing mechanism. A displacement mechanism for driving the positive electrode probe to move and an auxiliary mechanism for detecting the positive electrode position of the battery are arranged on the supporting mechanism. According to the utility model, the battery is arranged in the bearing mechanism, the positive probe, the negative probe and the shell probe are matched for use to respectively realize contact with the positive electrode, the negative electrode and the shell of the battery, and an external insulation tester is matched to realize short-circuit insulation tests of the positive electrode and the negative electrode of the battery, the negative electrode of the battery and the shell and the positive electrode of the battery and the shell at the same time; the whole structure is simple, the problem that the testing effect of a single positive electrode and a single negative electrode is poor is solved, multi-aspect testing in a compact structure is achieved, and the short-circuit insulation testing effect is remarkable.