61results about How to "Intuitive and accurate test results" patented technology

The invention discloses a device and method for rapidly testing the comprehensive mechanical properties of an anchor bolt, which belong to the technical field of anchor bolt testing devices. The invention is designed for solving the technical problem of providing a device for rapidly testing the comprehensive mechanical properties of an anchor bolt, which can comprehensively and rapidly test the comprehensive properties of the anchor bolt. The invention adopts the following technical scheme: the device for rapidly testing the comprehensive mechanical properties of an anchor bolt comprises a rack, a universal centering device, an axial force loading device and a hydraulic rotating power device, wherein the universal centering device is arranged at one end of the rack, the axial force loading device is arranged in the middle of the rack, the hydraulic rotating power device is arranged at the other end of the rack, and the axle centers of the universal centering device, the axial force loading device and the hydraulic rotating power device are in one straight line. The device and method disclosed by the invention are widely applied to the testing of the comprehensive mechanical properties of anchor bolts.

Relating to a crack detection method, the invention provides a dot-matrix type heat conduction temperature measurement nondestructive crack detection method. The method includes the steps of: disposing a laser and an infrared thermal imager over a to-be-detected workpiece, making a laser beam irradiate the surface of the to-be-detected workpiece at set power, simultaneously using the infrared thermal imager to detect a surface temperature rise curve of the to-be-detected workpiece at a position of 1-10mm distant from a laser spot in real time, detecting a maximum value, and comparing the temperature rise maximum value to judge whether a crack defect exists at the position on the to-be-detected workpiece surface. The whole workpiece surface is divided into n to-be-detected dot matrixes according to X-Y coordinates. After point-by-point detection, the recorded abnormal low temperature point coordinates are drawn into a graph, so that the position and shape of the crack on the to-be-detected workpiece can be known intuitively. With wide application, the method not only has a high detection rate on a superficial microcrack on the workpiece, and also can trace out its position, shape, depth and other three-dimensional information. Being simple and visible, the detection process needs no intermediate medium, has no adverse effect on the workpiece, and the detection result is visible and accurate.

A power-grid-impact-free detection method for the low voltage ride through function of a doubly-fed wind turbine generator system is characterized in that the stator side of the doubly-fed wind turbine generator system and a power grid are in the off state all the time when the low voltage ride through function of the doubly-fed wind turbine generator system is detected through the detection method, power grid faults of different types and different voltage drop depths are simulated by inputting a reactor with the adjustable resistance value, and the output waveforms of a converter of the doubly-fed wind turbine generator system and all physical quantities of an electric generator are detected so that whether the doubly-fed wind turbine generator system has the low voltage ride through function meeting the requirement of the national standard or not can be judged. By means of the detection method, whether the doubly-fed wind turbine generator system has the low voltage ride through function or not can be effectively verified, the performance index of the low voltage ride through of the doubly-fed wind turbine generator system can be rapidly obtained, no impact on the power grid is caused in the detection process, the detection method is simple and feasible, the detection result is visual and accurate, the detection cost is low, and the detection method is particularly suitable for the field of the wind power plant online detection of the low voltage ride through function of the doubly-fed wind turbine generator system.

A deformation test device inside a soil-mass belongs to the technology field of geotechnical engineering test. The invention includes a deformation coordinating tablet, a displacement transmission rod, a soft casing and a displacement meter, wherein the deformation coordinating tablet is pre-buried in the position to be determined in soil, the centre of the deformation coordinating tablet is fixedly connected with the displacement transmission rod, the other end of the displacement transmission rod is connected with the displacement meter, the displacement transmission rod is located in the soft casing, and the displacement transmission rod is isolated from the outside soil-mass by the soft casing. The invention has simple structure, convenient processing and simple operation, which is applied for geotechnical model test and can conveniently test the displacement inside the soil-mass, and the results are accurate and reliable.

The invention relates to a method for testing the performance of a vehicle door handle and a device thereof. The method comprises the following steps of: converting force born by the handle and the displacement of movement of the handle which are sensed by a force sensor and a displacement sensor in the opening process of the vehicle door into electric signals and transmitting the electric signals to a data collecting device ; converting two electric signals collected by the data collecting device into digital signals and transmitting the digital signals to a computer to carry out data processing and analysis; and displaying a real-time relation coordinate graph of the force and the displacement through a display. The device consists of the force sensor, the displacement sensor, a support rod, a magnetic disc, a universal joint and a fixture block. The testing method measures the force born by the handle and the displacement of the movement in the opening process of the vehicle door in real time, and gives the real-time relation coordinate graph of the force and the displacement. Therefore, the testing operation is convenient and rapid, and the testing result is correct and intuitionistic.

The invention discloses a smart bra for measuring and analyzing a female basal body temperature and a control method thereof. The smart bra comprises a bra body and a body temperature measurement device; the body temperature measurement device comprises a body temperature measurement processor and a temperature detector; the body temperature measurement processor is arranged in the centre of the bra body; the temperature detector is positioned at the side part of the bra body; the temperature detector is electrically connected with the body temperature measurement processor. Physiological states, such as a safe period, an ovulatory period, early pregnancy, corpus luteum insufficiency and the like, of a wearer can be known by monitoring the basal body temperature values of the wearer and analyzing the change of the basal body temperature values in a menstrual cycle, so that guidance is provided for pregnancy preparation or contraception of the wearer.

The invention provides a deflection measuring device for mechanical arms of engineering vehicles, comprising a calibration target which is installed at the end of a movable arm of a mechanical arm andis perpendicular to the extension line direction of the mechanical arm under no deflection deformation of the mechanical arm, a laser emitter which is installed at the root of a fixed arm of the mechanical arm and is used for emitting laser to the calibration target along a direction parallel to the axis of the fixed arm to leave identifiable laser spots on the calibration target, an inclinationangle measuring device which is installed on the calibration target and is used for measuring the included angle produced by the calibration target before and after deflection deformation of the mechanical arm, and a controller which is used for acquiring the position information of the laser spots on the calibration target and the included angle measured by the inclination angle measuring deviceand calculating the deflection of the mechanical arm after deflection deformation. The deflection measuring device adopted by the invention is relatively convenient in installation, the use and operation steps are relatively simple, and the detection results are intuitive and accurate. The safety of engineering vehicles in mechanical operation is improved.

The invention discloses a recombinase polymerase isothermal amplification and test strip combined method for detection of Staphylococcus aureus. The method includes the steps of: designing a specificStaphylococcus aureus primer pair, taking the Staphylococcus aureus genomic DNA as the template, conducting recombinase polymerase isothermal amplification, and applying a colloidal gold test strip toacquire the detection result. The method is rapid and simple, has no need for expensive instruments and equipment, can generate a detectable level product only through 10min amplification under a 40DEG C constant temperature condition, and does not need a tedious electrophoresis process, a result can be acquired within 5min of colloidal gold test strip detection, and the result can be observed bynaked eyes. In addition, the method has strong specificity, is free of reaction with other bacterial genuses, has high sensitivity, and makes up for the disadvantages of the existing traditional detection technology. The method is expected to be applied to grass-roots inspection and quarantine institutions and become a conventional detection means, and is of important significance for improving food hygiene level, ensuring food safety and promoting the international food trade development.

The invention provides a high-resolution low-sidelobe deconvolution spectrum estimation method based on space-time processing, and belongs to the field of signal processing. The method is suitable forthe high-resolution power spectrum estimation of a received array signal at frequency and azimuth under the condition that the data sample is limited. According to the invention, a deconvolution algorithm is used for the multi-dimensional deconvolution operation of an array signal power spectrum with the limited length and a multi-dimensional window function power spectrum, so the method can completely eliminate the impact caused by a window function under the ideal conditions, and obtains a real power spectrum of a signal. Based on the conventional convolution technology, the method can greatly improve the frequency resolution and angle resolution of a power spectrum estimation result, can greatly inhibit the sidelobe caused by the limited length of data, provides an additional signal tonoise ratio, and provides a new idea for the multi-target detection and recognition and weak signal extraction in the array signal processing. In addition, the method is high in operability, is moderate in calculation burden, is stable in calculation result, and is very wide in application range.

The invention relates to a control circuit for detecting pavement disease by sound effect radar and ground penetrating radar and a detector comprising the control circuit. The sound effect radar and the ground penetrating radar are jointly used for detecting the pavement disease, so that the thickness, the compressive modulus of elasticity and the defect of each structural layer can be accurately confirmed. A sound wave shock excitation device and the ground penetrating radar control signals to be synchronized via the controller, the thickness of the structural layer of each road is accurately measured by virtue of the electromagnetic wave, and the compressive modulus of elasticity of each structural layer is computed by the sound wave propagation velocity difference. The control circuit and the detector are high in automaticity, low in fault efficiency, small in volume and convenient to use. Compared with the conventional pavement structure detector, the detector can realize quantized non-destructive detection on the thickness of the structural layer, the compressive modulus of elasticity, the structural discontinuous invisible disease and the like, and the detecting speed per hour can reach more than 60km / h, therefore, the detector is wide in application prospect.

The invention provides an evaluation method of in-vitro natural killer cell immunocompetence and application thereof. The evaluation method comprises the following steps of: co-culturing a target cellcarrying a fluorescence label A and a natural killer cell, dyeing and labelling dead cells generated after co-culture by using a fluorescence label B, and carrying out microscopic imaging on the dyedand labelled cells by using a bright field, a fluorescence channel matched with the fluorescence label A and a fluorescence channel matched with the fluorescence label B respectively so as to obtaina microscopic image, recognizing cells in the obtained microscopic image through image recognition, performing superposition synthesis analysis on recognition results of the same region, and evaluating the immunocompetence of the natural killer cells according to an analysis result. According to the invention, a direct reading method for directly obtaining a detection result through an image is adopted, so that the detection result is more accurate and visual; and thus, the method is suitable for the fields of medical diagnosis and biomedical industrialization with higher standardization requirements.

The invention relates to the field of virus detection, in particular to a real-time fluorescence quantification RT-PCR (reverse transcription-polymerase chain reaction) detection method for a BATV (batai virus) and a kit. The detection method comprises step as follows: primers and a probe are adopted to perform PCR amplification on a to-be-detected sample, wherein an upstream primer BATV-F-NS is represented as 5'-TCTCGCAAAAAGAAGTGAATGG-3'; a downstream primer BATV-R-NS is represented as 5'-TGGCAAGGAATCCACTGAGTCT-3'; the probe BATV-Probe-NS is represented as FAM5'-CCAGTTCCAGACGATGGTCTTACCCTCC-3'. According to the detection method and the kit, the special and fast molecular detection method which is more sensitive and more effective is established for the BATV, a real-time fluorescence quantification RT-PCR reaction system is built, and specificity and stability verification is performed on the system. With the adoption of the method, a fast and convenient technical means is provided for further development of distribution monitoring, clinical diagnosis and related research of the BATV in the future, so that the a researcher gets a better understanding of the virus.

The invention discloses a laser scaleplate endoscopic sleeve grouting defect detecting device, comprising an endoscope, two groups of laser emitters, an insertion catheter and a controller, wherein the endoscope is movably installed at an end head of the insertion catheter, and a lens of the endoscope can rotate around a center line thereof; the endoscope is connected with the controller through an optical fiber core conduction line, and the controller is provided with a display screen; the two groups of laser emitters are installed at a front end of the endoscope side by side and the two groups of laser emitters can rotate with the endoscope; the laser emitters are connected with the controller through transmission conducting wires; the optical fiber core conduction line and the transmission conducting wires are all arranged in the insertion catheter, and one end of the insertion catheter stretches into a detection hole of a grouting sleeve with the endoscope and the laser emitters; and the detecting device is further provided with a tilt angle test system disposed at the outside the detection hole, the tilt angle test system comprises an auxiliary probe that rotates synchronously with the probe of the endoscope, and a dynamic tilt angle sensor is fixed to a front end of the auxiliary probe. The invention further discloses a sleeve grouting defect detecting method. The laser scaleplate endoscopic sleeve grouting defect detecting device disclosed by the invention has the beneficial effects of convenient operation, intuitive and accurate detection result, no damage to detected objects, and relatively high economic and social benefits.

The invention provides an evaluation method of in-vitro natural killer cell immunocompetence and application thereof. The evaluation method comprises the following steps: carrying out mixed co-cultureon target cells carrying a fluorescence label A and natural killer cells, then adding a fluorescence label B to label the target cells and the natural killer cells, and adding a fluorescence label Cto carry out dyeing labeling on dead cells generated after co-culture; and then carrying out microscopic imaging on the cells by using different fluorescence channels, identifying and analyzing the cells in the same area in the microscopic image by combining an image synthesis analysis method, and evaluating the immunocompetence of the natural killer cells according to an analysis result. According to the evaluation method, multiple data such as the cell death rate, the cell self-injury rate and the cell specific killing rate can be directly obtained through the images, the immunocompetence ofthe natural killer cells is obtained according to the data, and interference of impurities and cell debris is effectively eliminated.

The invention relates to the technical field of intelligent household appliances, and discloses a method for prompting self-cleaning of an air conditioner. The method comprises the steps of: obtaining a heat exchange amount information table, wherein the standard heat exchange amount of a heat exchanger corresponding to a first temperature difference value between the indoor environment temperature and the set temperature in different air conditioner operation modes is stored in the heat exchange amount information table; obtaining the current operation mode of the air conditioner and the first temperature difference value between the current indoor environment temperature and the set temperature, and matching the standard heat exchange amount corresponding to the first temperature difference value in the current operation mode from the heat exchange amount information table; according to the second temperature difference value of air inlet side aluminum foil fins and air outlet side aluminum foil fins of the heat exchanger, determining the actual heat exchange amount corresponding to the second temperature difference value; and according to the ratio of the actual heat exchange amount to the standard heat exchange amount, executing a corresponding self-cleaning prompt mode. The dust accumulation degree of the heat exchanger is determined through heat exchange amount changes, and a user is reminded to execute the self-cleaning mode. The invention further discloses a device for prompting self-cleaning of the air conditioner and the air conditioner.

The invention relates to a method for quickly determining ash content in a sulfenamide vulcanization accelerator, the method comprises the following steps: using a conductivity meter to determine the conductivity of deionized water to obtain conductivity C1 of the deionized water at 25 DEG C, taking a sulfenamide accelerator sample, adding the sample into the deionized water, mixing evenly, then standing for 2min-10min to prepare a sample solution, and then using the conductivity meter to determine the conductivity of the sample solution to obtain conductivity C2 of the sample solution at 25 DEG C; and according to a formula W=K2(C2-K1*C1)*% to calculate the ash content in the sulfenamide vulcanization accelerator; the method for quickly determining the ash content in the sulfenamide vulcanization accelerator is simple and practicable and is convenient to operate, and the detection time is short; and through use of the method, the ash content determination of a single sample takes about 10 min, the ash content determination of batch sample takes about 5 min-8 min, compared with a method specified in national standard GB / T11409, the detection time is substantially shortened, the ash content being qualified or not can be quickly calculated only with the need of detection of the conductivity, a detection process is rigorous with a small error, and detection results are accurate and intuitive.

The invention discloses a fabric performance detecting device for garment production. The device comprises a base used for bearing all components of the detecting device, wherein the base is providedwith a clamping frame, the top of the clamping frame is fixedly provided with a connecting seat, the two sides of the connecting seat are provided with two rotating shafts respectively, two crossing arms cross over the connecting seat, the bottoms of the two sides of the two crossing arms are provided with mounting bearings matched with the rotating shafts respectively, the tops of the two crossing arms are provided with a photosensitive plate and a luminescent plate respectively, and the base is provided with a flame projector with a spray head towards the clamping frame. Flame is sprayed ona to-be-detected fabric through the flame projector, then the light emitted by the luminescent plate is received by the photosensitive plate, and the burned area of the to-be-detected fabric can be accordingly obtained, thereby obtaining a quantified burning area to determine whether or not the fabric meets the performance requirements, and the test result is more visual and accurate.

The invention discloses an intelligent garment for monitoring ovarian health. The intelligent garment comprises a garment body, wherein the garment body comprises an inner-layer structure and an outer-layer structure, the inner-layer structure and an outer-layer structure comprise user navel corresponding points and vertical control lines, the navel corresponding points are used for covering a position of the navel of a user, and the vertical control lines are used by the user to contrast whether the lines are vertical to the ground; a human body temperature sensor and data processor integrated element is distributed at the inner-layer structure and is located at a Guanyuan point of a woman; and the human body temperature sensor and data processor integrated element comprises a temperaturesensor, a data collecting module, a data caching module, a wireless communication module and a power supply module, is connected with an intelligent terminal APP platform through the wireless communication module and is used for sending collected temperature physiological parameter information of the Guanyuan point to the intelligent terminal APP platform for processing. The intelligent garment can be used for rapidly, visually and noninvasively knowing the ovarian health and internal secretion conditions and prewarning ovarian early diseases.

The invention discloses a method for detecting whether an oil channel hole of a main bearing is communicated with an oil channel hole of an idler shaft or not. The method comprises the following steps that firstly, a cylinder body is put on an inspection bench; then, one of the oil channel hole of the main bearing and the oil channel hole of the idler shaft is connected with a jetting device; finally, the jetting device is started to jet liquid, and whether the liquid can be smoothly jetted out from the other oil channel hole or not is observed. According to the method for detecting whether the oil channel hole of the main bearing is communicated with the oil channel hole of the idler shaft or not, the liquid is jetted into one of the oil channel hole of the main bearing and the oil channel hole of the idler shaft, and whether the liquid can be smoothly jetted out from the other oil channel hole or not is observed, so that whether the two oil channel holes are communicated or not is inspected. The method is easy to operate, the inspection result is visual and accurate, and the inspection efficiency is high.

The invention discloses a method for measuring non-contact printing ink content in waster paper pulp and a deinking effect evaluation method, comprising: drying and weighing waster paper pulp sample, burning into ash content after charring, and weighing the weight of the ash content; calculating the ash purity Ap in the waster paper pulp; measuring iron content Ia in the ash content, and obtaining the iron content in the waster paper pulp Ip=Ap*Ia; sampling from the waster paper pulp with the known printing ink content Tp', measuring the iron content Ip' in the waster paper pulp, and calculating the iron content It in the printing ink; obtaining the actual printing ink content Tp in the pulp with the relational expression of Tp=Ip / It; respectively measuring the actual printing ink content Tp and T'p in the waster paper pulp before and after flotation; obtaining oven dry stock quantity P and P' before and after flotation by measuring the concentration of the waster paper pulp and weight the mass of the sizing agent; and calculating the actual deinking efficiency of flotation. The invention can be used for accurately quantifying the printing ink content, provides strong technical support for deinking control of waste paper, and gives more accurate evaluation to the deinking effect in the production practice of the waste paper.

The invention discloses a rail fat edge detection device, which comprises a rail roller and a splint. The rail roller can roll along the rail surface, and the width of the rail roller is the same as the width of the rail surface without the fat edge. Consistently, the upper end surface of the rail roller is provided with a connecting rod; the splint is used to clamp the two sides of the rail roller and the two sides of the rail, the splint is connected to the connecting rod through a spring, and the splint passes through The spring can be stretched when clamping the fat edge rail; it also includes a marker box arranged on the upper end surface of the rail roller for storing marking media, the opening of the marker box is set downwards, and the opening faces the splint Corresponding to the clamping seams on both sides of the rail roller; the opening is sealed by a sealing plate connected to the splint, which can be removed when the splint is stretched and no longer fully sealed Keep your mouth shut. It can detect the fat edge of the rail surface and mark the fat edge for grinding, and the detection result is intuitive and accurate.

Disclosed are a testing device and testing method for leakage of a paper air permeability detector. The testing device comprises a liquid soap box, a rubber ball arranged on the liquid soap box and a soap film flowmeter formed by a glass tube with scale marks, and an air inlet tube is connected with the lower portion of the glass tube. The testing device is characterized in that a pressing branch tube is additionally arranged on the upper portion of the glass tube, and an air inflating needle barrel is connected with the other end of the pressing branch tube. The leakage condition of the paper air permeability detector can be tested through the device, and the leakage amount of the detector can be calculated. Compared with other air flow measurement equipment, the soap film flowmeter adopted in the device is low in cost and high in measurement precision. The testing method is easy to operate, visual and accurate in detection result, good in universality and capable of being suitable for the leakage detection of paper air permeability detectors of different factories.

The invention provides an underground pipeline depth detection device. The device comprises a bracket and a plurality of screw rods; the bracket is provided with a first flat plate, a second flat plate and a third flat plate, the plurality of screw rods sequentially penetrate out of the bracket from top to bottom, every two adjacent screw rods are connected through a detachable connecting mechanism, a driving mechanism is arranged between the first flat plate and the second flat plate, a fixing piece is arranged on the third flat plate, the fixing piece is provided with threaded holes matchedwith the screw rods, and the screw rods are connected through the threaded holes in a threaded mode. According to the underground pipeline depth detection device, the screw rods for depth measurementare of a split structure, the depth detection device is of a pure mechanical structure, the detection process is slightly affected by the environment, the detection result is visual and accurate, thedepth of a pipeline underground or in a water pool can be accurately measured, and the underground pipeline depth detection device is widely applied to existing pipeline construction.

The invention discloses a method for testing the hook attaching performance of fishing bait. The method comprises the following steps: firstly, measuring the water content and dry basis water content in the bait, then adding the bait and water into a dough mixer for blending, weighing a blended bait ball, filling the blended bait ball into an aluminum box with a cover in which fishhooks are placed, performing pressing and compacting, then opening the cover, taking out the fishhooks wrapped with the bait balls, suspending the three hooks wrapped with the bait balls in a beaker containing clear water, after a period of time, taking the fishhooks out and placing the fishhooks on the weighed filter paper, carefully scrapping off residual bait on the fishhooks, placing the filter paper and the residual bait in an oven to be dried to constant weight, weighing the mass of the filter paper and the mass of the residual bait, and finally calculating the kook attaching performance. The method is simple and easy to operate, the detection result is visual and accurate, and the problems that the judgment of the ook attaching performance of the bait completely depends on experience and intuition and errors are large in the past are solved.

The invention relates to a control circuit for detecting pavement disease by sound effect radar and ground penetrating radar and a detector comprising the control circuit. The sound effect radar and the ground penetrating radar are jointly used for detecting the pavement disease, so that the thickness, the compressive modulus of elasticity and the defect of each structural layer can be accurately confirmed. A sound wave shock excitation device and the ground penetrating radar control signals to be synchronized via the controller, the thickness of the structural layer of each road is accurately measured by virtue of the electromagnetic wave, and the compressive modulus of elasticity of each structural layer is computed by the sound wave propagation velocity difference. The control circuit and the detector are high in automaticity, low in fault efficiency, small in volume and convenient to use. Compared with the conventional pavement structure detector, the detector can realize quantized non-destructive detection on the thickness of the structural layer, the compressive modulus of elasticity, the structural discontinuous invisible disease and the like, and the detecting speed per hour can reach more than 60km / h, therefore, the detector is wide in application prospect.

A power-grid-impact-free detection method for the low voltage ride through function of a doubly-fed wind turbine generator system is characterized in that the stator side of the doubly-fed wind turbine generator system and a power grid are in the off state all the time when the low voltage ride through function of the doubly-fed wind turbine generator system is detected through the detection method, power grid faults of different types and different voltage drop depths are simulated by inputting a reactor with the adjustable resistance value, and the output waveforms of a converter of the doubly-fed wind turbine generator system and all physical quantities of an electric generator are detected so that whether the doubly-fed wind turbine generator system has the low voltage ride through function meeting the requirement of the national standard or not can be judged. By means of the detection method, whether the doubly-fed wind turbine generator system has the low voltage ride through function or not can be effectively verified, the performance index of the low voltage ride through of the doubly-fed wind turbine generator system can be rapidly obtained, no impact on the power grid is caused in the detection process, the detection method is simple and feasible, the detection result is visual and accurate, the detection cost is low, and the detection method is particularly suitable for the field of the wind power plant online detection of the low voltage ride through function of the doubly-fed wind turbine generator system.

The invention discloses a micro heat distribution test method and system. The microscopic heat distribution test method comprises the following steps of: fixing the test piece on the test platform; adjusting the orientation of the test platform by the universal adjustment sample stage, and adjusting the temperature of the test platform by a circulating water cooling device, a heating circuit and ahigh and low temperature digital display temperature controller; transmitting the test input signal provided by the programmable DC power supply to the test piece through the probe; observing the optical response information from the surface of the test piece to the test input signal through a macro lens and a probe stage microscope, then recording and transmitting it in the form of an optical image to the terminal; obtaining the heat distribution response information of the test piece to the test input signal by the heat distribution tester, then transmitting it to the terminal in the form of data parameters and heat distribution images; and analyzing and processing optical images, data parameters, and thermal distribution images by the terminal. According to the microscopic heat distribution test method and system, the defect of the test piece can be accurately found by analyzing the heat distribution response information of the test piece.

The invention discloses a device and a method for measuring non-uniform shrinkage of an inorganic binder stable material, and relates to the technical field of road instruments. The non-uniform shrinkage of the inorganic binder stable material can be directly detected, and more accurate index information is provided for pavement performance detection of a semi-rigid base. The non-uniform shrinkage measuring device for the inorganic binder stabilizing material comprises a test piece base, a measuring table, a vertical bracket, a transverse bracket and a transmission device, the test piece base is used for placing a to-be-tested beam type test piece; transverse guide rails are arranged on the side surfaces of the test-piece base; the transverse bracket is slidably connected with the test piece base; two ends of the vertical bracket are respectively connected with the transverse bracket and the measuring table; a displacement measuring device is arranged on the measuring table; a transmission device is also arranged on the test piece base; the transmission device can drive the transverse support to slide in the extending direction of the transverse guide rail. The invention further provides a measuring method based on the non-uniform shrinkage measuring device for the inorganic binder stable material.

The invention relates to a device for monitoring oil leakage of an energy accumulator, which consists of a charging valve, a manifold block, a stop valve, a damper, a one-way valve and a detector. A gas inlet of the manifold block is connected with a gas valve connector on an end cover of the gas end of the energy accumulator; the charging valve is connected with a charging port of the manifold block; the detector is connected with a gas outlet of the manifold block; a gas inlet of the stop valve is connected with the gas inlet of the manifold block; a gas outlet of the stop valve is connected with a gas inlet of the damper; a gas outlet of the damper is connected with a gas inlet of the one-way valve; a gas outlet of the one-way valve is connected with the gas outlet of the manifold block. The device has the advantages of simple integral structure, convenience and rapidness for disassembling and assembling, convenience in use and visual and accurate detection result. On the premise of not disassembling the energy accumulator, whether the energy accumulator has the oil leakage problem can be rapidly and visually monitored, and whether the energy accumulator is damaged can be rapidly and visually judged, so that the energy accumulator can be timely replaced, a system is guaranteed to normally run, a great quantity of overhaul time is saved, and working efficiency is improved.