33results about How to "Comprehensive measurement" patented technology

The invention relates to an abnormal data analysis method and device, computer equipment and a readable storage medium. The method comprises the steps of obtaining multi-dimensional time sequence data at different time points, converting the multi-dimensional time sequence data into a multi-dimensional time sequence vector, determining the distance between the multi-dimensional time sequence vector and a reference distribution vector at each time point, constructing a one-dimensional time sequence matrix based on the distance based on the distance corresponding to each time point, and obtaining a one-dimensional time sequence matrix based on the one-dimensional time sequence matrix. And determining a Z score value of each data point in the one-dimensional time sequence matrix, and identifying an abnormal value in the data points based on the Z score value of each data point. By adopting the method, the abnormal value in the multi-dimensional time sequence data can be efficiently and accurately identified.

The invention provides a textile fabric anti-ultraviolet performance detection device, and relates to the technical field of fabric detection, the textile fabric anti-ultraviolet performance detection device comprises an unwinding mechanism, a first traversing mechanism, a second traversing mechanism and an adjusting traversing mechanism. The unwinding mechanism is used for unwinding and winding the to-be-detected cloth; cloth horizontally penetrates through the first transverse penetrating mechanism and the second transverse penetrating mechanism. The adjusting and penetrating mechanism has a first state and a second state which can be switched, so that the cloth can horizontally extend in the first state, and a downward arc-shaped recess and an upward arc-shaped bulge are formed in the second state. The linear ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the cloth in the horizontal state; and the arc ultraviolet sensor detection mechanism is used for detecting the ultraviolet transmittance of the arc part of the cloth. The method can accurately detect the ultraviolet permeability of the fabric in different forms, is suitable for quality evaluation of anti-ultraviolet functional textiles, and reduces the quality defects after the textile fabric leaves a factory.

The invention relates to the technical field of railway train operation control, and provides a digital track circuit health state analysis method, device, equipment and medium, and the method comprises the steps: carrying out the deviation standardization processing of the electrical parameters of a track section; performing parameter category labeling on the standardized electrical parameters, and generating a data instance of the track section according to the standardized electrical parameters and the electrical parameter categories; determining a training data set and a test data set of the track section according to the data instance, training the support vector machine model according to the training data set, and performing parameter optimization on the trained support vector machine model by using the test data set; using the support vector machine model after parameter tuning to classify preset electrical parameters to be analyzed to obtain category instances of the track section; and determining the risk state of the digital track circuit according to the distance between the category instance and the decision plane. According to the invention, the accuracy of health state analysis of the digital track circuit can be improved.

The invention discloses a novel inspection jig and an inspection method. The novel inspection jig comprises an inspection platform, the inspection platform is provided with an inspection station, the inspection station is provided with an installation notch, the installation notch is provided with a jacking and extending mechanism, the jacking and extending mechanism comprises a lifting assembly, the driving end of the lifting assembly is provided with a rotary driving part, and the driving end of the rotary driving part is provided with a jacking and extending rod; a hot-pressing detection mechanism is arranged above the detection station, the hot-pressing detection mechanism comprises a driving assembly and a hot-pressing assembly arranged at the driving end of the driving assembly, the hot-pressing assembly comprises a hot-pressing plug, the hot-pressing plug is provided with a heating assembly, and one end of the heating assembly is provided with a pressure sensing piece; through cooperation of the top extension mechanism and the hot-pressing detection mechanism, detection of actual hot-pressing working conditions and different stress conditions of the to-be-tested component is realized, so that more complex use working conditions are simulated, more comprehensive measurement and test are performed, the to-be-tested component can be tested more comprehensively, and a more accurate test result is obtained.

The invention discloses a motor monitoring system and a motor abnormal state monitoring method, is used for monitoring a motor, and relates to the technical field of embedded system development. The system comprises a monitoring controller, a plurality of temperature measuring devices and a plurality of vibration measuring devices, each temperature measurer is arranged on the outer surface of the motor and used for collecting temperature information of the motor, and the arrangement positions of the temperature measurers on the outer surface are different; each vibration measurer is arranged on the outer surface of the motor and used for collecting vibration information of the motor, and the arrangement positions of the vibration measurers on the outer surface are different; the monitoring controller is connected with each temperature measuring device and each vibration measuring device, and is used for receiving the temperature information collected by each temperature measuring device and the vibration information collected by each vibration measuring device, and displaying the temperature information and the vibration information. According to the system, the monitoring capability and the monitoring efficiency of the temperature and the vibration of the motor can be remarkably enhanced.

The invention belongs to the technical field of machine vision nondestructive testing, and particularly relates to a conveying belt thickness measuring device and method and a conveyor. Structured light is projected to a conveying belt through the device, a picture with the structured light on the conveying belt is obtained, sub-pixel processing is conducted on the picture, and a set of two-dimensional coordinates is obtained; a group of two-dimensional coordinates are converted into arithmetic information S through calculation, real thickness information on the conveying belt is obtained, the group of arithmetic information S is corrected, and full-section thickness information of the conveying belt is obtained. According to the method, the visual measurement technology and the linear measurement technology are fused, and the real thickness of the conveying belt is combined with the visual measurement technology; according to the method, the thickness of the whole section of the conveying belt can be accurately measured, parallax and measurement errors possibly caused by factors such as illumination in a traditional method are reduced, high practicability, reliability and safety are achieved, and powerful technical support is provided for maintenance and management of a mining industry conveying system.

The invention relates to the technical field of glassware production, discloses a size detection device for glassware production, and solves the problems of tedious operation, long time consumption and low efficiency of an existing size detection device for glassware production which sequentially measures the inner and outer diameters of a bottle opening through a vernier caliper. The glass bottle height measuring device comprises the workbench, the air cylinder arranged in the rack, the laser measurer arranged at one end of the air cylinder and the feeding and discharging mechanical arm arranged on one side of the workbench, a fixing plate and the laser measurer are driven by the air cylinder, the laser measurer and a glass bottle can be accurately positioned, and the height size of the glass bottle can be conveniently measured; in the downward pressing process of the fixing shell, through the inner measuring structure and the outer measuring structure, measurement of the inner diameter and the outer diameter of the bottle opening can be completed in the same action by means of spring force storage, mechanical transmission and a capacitance displacement sensor, measurement of the inner diameter and the outer diameter is matched, the size of the bottle opening can be comprehensively detected, and detailed and accurate data are provided for glass bottle quality control. The whole process is efficient and stable.

The invention relates to artificial intelligence, and provides an information processing method and device, computer equipment, a storage medium and a program product. The method comprises the following steps: generating target prompt information for a session text in a first time period; obtaining a reply text responding to the target prompt information; scoring based on the session text and the reply text to obtain a first score of the first user in the first time period; a reference score is determined, evaluation information of the first user is generated according to the first score and the reference score, and the reference score comprises at least one of a second score of the first user in the second time period and a third score of the second user. The method can improve the accuracy of the evaluation result.

The invention relates to the technical field of measuring devices, in particular to a gantry type mounting rack for a three-coordinate measuring device, which comprises a workbench, two groups of first sliding grooves are formed in the upper end of the workbench, and a gear ring is fixedly connected between the two groups of first sliding grooves in the upper end of the workbench. The inner sides of the two first sliding grooves are slidably connected with two rolling wheels, the upper ends of shells of the two rolling wheels are jointly and fixedly connected with fixing plates, the upper ends of the two fixing plates are jointly and fixedly connected with a portal frame, and a maintenance mechanism is arranged on the inner side of the portal frame and moves up and down through a fixing sleeve. Therefore, when the wiping plate rotates to clean the bevel gear, impurities adhered to the bevel gear can be better removed by the generated friction force, so that the measurement result is prevented from being influenced, the detection effect of the detection head is better, the probe part is prevented from being covered by grease when the detection head is used for detection, and the detection efficiency is improved. And the impurities can be prevented from interfering with measurement results or damaging measurement equipment.

Disclosed is an Ampere force quantitative experimental device, including a coil, an electromagnet, a turntable, a bracket, a micro-force sensor, a current sensor, an angle sensor and a power supply. The bracket includes a base, a rotating support seat arranged above the base and a cantilever structure for arranging the micro-force sensor. The turntable is installed on the rotating support seat. Two electromagnets are arranged on the turntable and are respectively connected to the power supply. The angle sensor is arranged at the bottom of the bracket for detecting the rotation angle of the turntable. One end of the coil is suspended at the bottom of the micro-force sensor and placed between the two electromagnets. The power supply, the current sensor and the coil are connected in series to form a first loop, and the power supply and the electromagnet form a second loop. The experimental device of the invention has high measurement accuracy, stable data and high accuracy, and can comprehensively, quantitatively, intuitively and quickly measure the size of the Ampere force F and five related physical quantities (B, I l , L, Sinθ, θ) relationship.

The present disclosure proposes a regional fracturing segmented water pressure monitoring device, comprising: a shell, the shell is arranged in the isolation string of the rock formation borehole; a collection module, the collection module is arranged in the shell, and the collection end of the collection module extends outside the shell; a monitoring module, the monitoring module is arranged in the shell, and the first communication end of the monitoring module is connected to the communication end of the collection module, and the monitoring module is used to control the collection module to collect the pressure greater than the preset pressure value in the borehole according to a preset frequency value; a power storage module, the power storage module is arranged in the shell, and the power supply end of the power storage module is connected to the power supply end of the monitoring module. In a regional fracturing segmented water pressure monitoring device disclosed in the present disclosure, direct and continuous monitoring of the pressure in the isolation string of the borehole can be achieved, thereby avoiding the error problem caused by indirect measurement, and then accurately and comprehensively measuring the whole process data such as the rock rupture pressure and rock formation expansion pressure of each fracturing segment in the borehole.

The invention discloses a method for testing the angle and stroke of a forklift accelerator pedal, comprising the following steps: S1, detecting an initial angle α1 of a forklift accelerator pedal in an initial state, and calculating a horizontal and vertical distance X1, Y1 between a measuring point and a rotation center of the accelerator pedal; S2, stepping on the accelerator pedal, causing the accelerator pedal to rotate around the rotation center by a certain angle, detecting a pedal angle α2 in a current state, and calculating a horizontal and vertical distance X2, Y2 between a measuring point on the accelerator pedal and the rotation center of the accelerator pedal; S3, calculating a stroke variation Z of the accelerator pedal according to the horizontal and vertical distances X1, Y1 between a measuring point and the rotation center of the accelerator pedal in the initial state of the accelerator pedal in S1 and the horizontal and vertical distances X2, Y2 between a measuring point and the rotation center of the accelerator pedal in the current state in S2; the application solves the problems of complex angle and stroke measurement of a forklift accelerator pedal, multiple sensors, poor interchangeability, and incomplete test data.

The utility model discloses a screw tap production dimension measuring device which comprises an operation box, the front side and the rear side of the operation box are both of an opening structure, the top of the operation box is provided with a fixing assembly used for fixing a screw tap, and the operation box is provided with a measuring assembly located on the front side of the fixing assembly. The fixing assembly comprises a frame, an electric push rod and a pressing plate, the frame is fixedly installed on the top of the operation box, the electric push rod is fixedly installed on the inner wall of the bottom of the frame, and the pressing plate is fixedly installed at the output end of the electric push rod. The screw tap measuring device is reasonable in design and good in practicability, the screw tap can be clamped and fixed, the stability of clamping the screw tap is improved through the rubber pad and the clamping groove, the thread bottom diameter of the screw tap can be measured, the thread outer diameter of the screw tap is measured through the second scale rod, parameter measurement of the screw tap is more comprehensive, and the screw tap measuring efficiency is improved. And the screw taps can be conveniently selected and used.

The utility model discloses a bidirectional sliding mechanism for an automobile testing fixture, which comprises a concentric-square-shaped frame and X-axis guide supporting structures arranged in the concentric-square-shaped frame, and convex supporting tables are arranged on the two sides of the interior of the concentric-square-shaped frame through the X-axis guide supporting structures. A vertical beam is installed on the outer wall of the side, close to the vertical center datum plane of the concentric-square-shaped frame, of the convex supporting table through a Z-axis guide supporting structure, a longitudinal arm is fixed to the outer wall of the side, away from the convex supporting table, of the vertical beam, and a testing fixture supporting piece used for assisting an automobile testing fixture in moving in the Y-axis direction is installed on the outer wall of one side of the longitudinal arm. According to the utility model, through the addition of the Z axis, the automobile testing fixture has moving and positioning capabilities in a third dimension, so that the height or thickness of automobile parts can be measured more comprehensively, and the measurement precision and accuracy are improved for parts with higher requirements on the dimensions in the vertical direction.

The invention discloses a GAN-based phase coherent image generation method, and relates to the technical field of image processing. The method comprises the following steps: firstly, constructing a PCGNet network comprising a preprocessing module, an image generation module and a phase correction module, designing a generator loss function and setting a discriminator; the method comprises the following steps: acquiring a source image, preprocessing the source image, and inputting the preprocessed source image into a PCGNet network, wherein the preprocessing comprises Gaussian blur and shallow feature extraction; carrying out three times of down-sampling and up-sampling processing on the preprocessed feature map, and carrying out frequency domain processing through a phase correction module to optimize phase coherence; the generator integrates pixel-level, perception, confrontation and phase loss functions to form a total loss function, and a Real-ESRGAN discriminator is adopted to provide pixel-level feedback; and evaluating the image phase difference based on an optical transfer function (OTF). The method can eliminate the influence of the phase information of the imaging target, the evaluation result is only related to the imaging system, and the phase coherence image can be effectively generated and evaluated.

The invention relates to the field of intelligent detection of a smelting technology, in particular to an automatic monitoring method and system for a steel ladle. An automatic monitoring method for a steel ladle comprises the steps that three-dimensional modeling is conducted on the steel ladle in production circulation, and a three-dimensional point cloud model of the steel ladle is obtained; the steel ladle three-dimensional point cloud model and a preset reference model are positioned and matched, so that the steel ladle three-dimensional point cloud model and the reference model are aligned based on the same standard; dividing the steel ladle three-dimensional point cloud model into n layers along the depth direction, and calculating the radius of each layer according to the reference to obtain the actual radius of each point on the inner wall of the current steel ladle; obtaining the residual thickness value of the refractory brick through the actual radius and the initial radius of the corresponding point in the reference model; the steel ladle three-dimensional point cloud model is divided into multiple layers in the depth direction, the radius of each layer is calculated, the actual radius of each point of the inner wall of the current steel ladle can be obtained, and therefore comprehensive and accurate measurement of the residual thickness of the refractory bricks on the inner wall of the whole steel ladle is achieved.

The embodiments of this specification provide a method, device, equipment and medium for evaluating solar radiation stability, wherein the method includes: obtaining historical solar radiation observation data of a target area, calculating the average state of the evolution of solar radiation intensity with a preset time interval in a preset time period as a reference sequence; collecting the solar radiation intensity of a target day as a first sequence according to the preset time interval; calculating the probability distribution functions of the reference sequence and the first sequence respectively, and calculating the Wasserstein distance of the two probability distribution functions, and determining the solar radiation stability of the corresponding day according to the Wasserstein distance, so as to solve the technical problem that the existing quantitative evaluation indicators mainly consider high-frequency fluctuations within a cycle, while low-frequency fluctuation information within a cycle is rarely considered, resulting in inaccurate evaluation results.

The invention provides a numerical control cutter handle precision measuring instrument, and relates to the technical field of numerical control cutter handle measurement. Comprising a measurement installation piece, and two elastic supporting pieces are installed on the measurement installation piece. The two elastic supporting pieces are each provided with a telescopic limiting piece. The telescopic limiting piece is used for sliding on the numerical control cutter handle; a measuring sleeving piece is attached to the bottom of the telescopic limiting piece, the measuring sleeving piece conducts one-time measurement on radial deviation and swing errors of the floating numerical control cutter handle, measurement data are comprehensive, and meanwhile normal machining work of the cutter handle is not affected; the problems that an existing numerical control cutter handle precision measuring instrument is not convenient to measure radial deviation and swing errors of a floating numerical control cutter handle at a time, and the cutter handle error is not convenient to know in time when the numerical control cutter handle is used are solved.

The invention discloses a resource monitoring method, device and system and a computer readable storage medium, and relates to the technical field of networks. The resource monitoring method comprises the following steps: obtaining monitoring information of a computing power network resource layer, a computing power network control layer and a computing power network service layer related to a computing power network; and according to the monitoring information and a measurement result of the computing power network resource layer, generating computing network multi-factor monitoring information comprising a service identifier of a computing power network service provided by the computing power network service layer, an identifier of a user using the computing power network service, and a computing power identifier of a computing power resource provided by the computing power network resource layer. According to the invention, a network detection mechanism based on users and services is introduced, and the network detection mechanism based on services further monitors computing power resources and network resources. Therefore, effective integration of computing power and network monitoring is realized.

The invention belongs to the technical field of rehabilitation assistive devices, and particularly relates to a limb rehabilitation assisting device and a limb rehabilitation training mechanism, the limb rehabilitation assisting device comprises a driver, an angle measuring part and a force measuring part, the driver can be bent under the action of external driving force, auxiliary training can be conducted on limbs, and the force measuring part is used for measuring the angle of the limb. The bending angle of the driver can be controlled by adjusting the driving force; the angle measuring part is used for accurately measuring bending data of each limb joint by arranging a strain gauge or an attitude sensor on a base; and the force measuring part measures the force data of each limb region by measuring the pressure of the air bag group corresponding to each limb region. The whole device is simple in structure, comprehensive and accurate in measurement of movement data of all limbs, good in comfort and capable of adapting to various rehabilitation strategies, the rehabilitation effect is improved, and precise rehabilitation is achieved.

The invention discloses a multi-parameter flow transmitter, and relates to the field of metering instruments, the multi-parameter flow transmitter comprises a sensor, an information processing module and an energy supply module, the energy supply module comprises a mounting side plate, an energy supply battery is fixedly mounted on one side of the mounting side plate, and the output end of the energy supply battery is electrically connected with a power line; the power line is electrically connected with the information processing module, a metal plate protection box is fixedly mounted on one side of the mounting side plate, and heat dissipation holes are evenly formed in one side of the metal plate protection box. According to the multi-parameter flow transmitter, the information processing module and the energy supply module are separated and isolated, the energy supply module is installed in a stable and safe environment, the situation that a power supply is affected with damp and is short-circuited or corroded by the external environment is avoided, and therefore the stability and anti-interference performance of the multi-parameter flow transmitter are improved.

The invention discloses a multi-channel KB microscope with double energy points and high coaxiality. The multi-channel KB microscope comprises a plurality of KB reflectors Mi which are oppositely arranged in the meridian direction and a plurality of KB reflectors Sj which are oppositely arranged in the sagittal direction, the system further comprises a KB reflecting mirror Sj'which is arranged opposite to the KB reflecting mirror Sj in the sagittal direction. The mirror surface of the KB reflecting mirror Mi, the mirror surface of the KB reflecting mirror Sj and the mirror surface of the KB reflecting mirror Sj 'are plated with different multi-layer films in a partitioned mode. The plurality of KB reflectors Mi, the plurality of KB reflectors Sj and the plurality of KB reflectors Sj'are combined pairwise to form a multi-channel X-ray image in matrix arrangement. According to the multi-channel KB microscope with the double energy points and the high coaxiality, the difference of the observation visual angle of each energy point is remarkably reduced from a few degrees to a zero point few degrees, meanwhile, the capability of carrying out quasi-coaxial multi-channel observation at two different energy points is achieved, and the application range of a sixteen-channel KB system in ICF physical experiments is effectively expanded.

The invention discloses a multi-mode optical on-line measuring device, and belongs to the technical field of optical measurement, the multi-mode optical on-line measuring device comprises a supporting seat and a fixed box fixed on the surface of the supporting seat, a rotating pipe is rotatably connected in the supporting seat, an object placing table is fixed on the outer wall of the rotating pipe, a connecting column is movably connected in the fixed box, and the connecting column is fixedly connected with the object placing table. A mounting frame movably connected with the fixing box is fixed to the outer wall of the connecting column, two fixing columns are symmetrically fixed to the outer wall of one side of the mounting frame, a protective shell is fixed to the end faces of the fixing columns, an industrial camera is installed on the outer wall of one side of the protective shell, and a dustproof sleeve is movably connected into the protective shell; and a measuring lens, a telecentric lens and a zoom lens are respectively arranged in the dustproof sleeve. According to the multi-mode optical online measurement device, on the premise that the workpiece is not moved, the workpiece can be comprehensively measured, the measurement efficiency is improved, meanwhile, different measurement modes can be selected according to measurement requirements, and the measurement precision is improved.

The invention relates to the technical field of wire coating thickness measurement by an electron microscope, in particular to a wire coating thickness measurement and uniformity evaluation method based on image processing. Comprising the following steps: vertically cutting a wire sample and preparing an observation surface; acquiring a clear image of the section of the coating by using a scanning electron microscope back scattering electron mode; carrying out binarization processing and interface repair on the image, and extracting a plating layer area; carrying out equidistant segmentation on the regional image along the extension direction of the plating layer, measuring the area of each segmented region, and calculating the local thickness; based on all local thickness data, an average thickness and a standard deviation are calculated. According to the method, image segmentation and statistics are combined, so that the average thickness can be obtained more accurately, the standard deviation of the coating uniformity can be directly output in single measurement, and comprehensive and objective data support is provided for product quality control and process optimization. The method is suitable for various materials and coating systems, and has the advantages of high scientificity, high repeatability and comprehensive information.

The invention discloses a system and method for measuring the tooth space of a wrist gear of an industrial robot, and relates to the field of industrial robots. The objective of the invention is to quantify the final assembly effect of the wrist gear and provide data evaluation for the final result of the wrist assembly of the industrial robot. The system comprises an upper computer, a driver, a mounting rack and a servo motor, the driver and the servo motor are fixed on the mounting rack, the upper computer controls the driver to work, the driver controls the servo motor to work, the servo motor is connected with a tested wrist and can drive the tested wrist to rotate, and the tested wrist is connected with the mounting rack. A tested wrist is fixed on the mounting rack, and the mounting rack is provided with a fixer used for connecting an output flange of the tested wrist. According to the measuring method, the fluctuation degree of the backlash of the gear in the measured wrist at different meshing positions can be represented, and whether the gear in the measured wrist is assembled too tightly or not can be determined.

The utility model relates to the related technical field of width measurement, in particular to a coal conveying belt surface crack width measuring device which comprises a conveying belt and a belt, the belt is placed on the upper surface of the conveying belt, an adjusting mechanism is arranged on the upper surface of the conveying belt, and a mounting mechanism is arranged on the surface of one side of the conveying belt. According to the coal conveying belt surface crack width measuring device, the measuring instrument is placed at the designated position in the fixing block, the pressing block is pushed by the spring to achieve fixation, operation is easy and convenient, fixation is reliable, the measuring instrument can be conveniently taken out by extruding the pressing block when needed, and the surface of the belt can be detected by starting the measuring instrument; the electric sliding table can drive the supporting rod to slide, so that the measuring instrument can comprehensively and accurately detect the position where the belt cracks, the motor drives the connecting rod to rotate, then the measuring instrument is driven to rotate, the comprehensiveness and accuracy of detection are further improved, meanwhile, the illuminating lamp is turned on, and the measuring result can be more accurate.

The present invention relates to the technical field of visual image recognition, and discloses a method for measuring phenotypic parameters of rapeseed siliques, comprising the following steps: step 1, constructing a rapeseed silique phenotypic parameter measurement system to obtain rapeseed silique image information; step 2, constructing a rapeseed silique structure measurement model based on a UNet network and a rapeseed silique seed counting model based on a CrowdCounting‑P2PNet network; step 3, performing multi-scale fusion processing on the image information to obtain a multi-scale fused image; step 4, inputting the multi-scale fused image into the rapeseed silique structure measurement model and the rapeseed silique seed counting model; step 5, outputting the precise phenotypic parameters of the rapeseed siliques. The present invention can efficiently collect rapeseed silique images, effectively fuse rapeseed silique long-exposure and short-exposure images, comprehensively measure the phenotypic parameters of rapeseed siliques, and can construct a rapeseed silique phenotypic parameter detection model using the multi-scale fused image, and has the advantages of low cost, high speed, high precision, simple system, etc.

The utility model provides a railway construction track gauge measuring device relates to track gauge measuring technical field, this railway construction track gauge measuring device, including two groups of mobile measuring part, places mobile measuring part on the track, pushes along the track and moves through the supporting part to promote mobile measuring part, when the track gauge is in normal value, the distance between two mobile measuring parts will not change, when the process of mobile measuring part moves, the distance between two mobile measuring parts becomes big or becomes small, and observation part can carry out the rotation mark, and the patient only needs to observe observation part and can measure the change of track gauge, when finding that observation part changes, when measuring the track, can obtain more accurate data, above all, can more comprehensive measurement to the whole track, more convenient check out the abnormal point of track, can effectively save the efficiency of track inspection.

The invention provides a hydration heat meter for low-temperature well cementation cement slurry, which comprises a freezing mechanism comprising a freezing cavity and a measuring mechanism, the at least two measuring cavities are arranged in the freezing cavity; the first reaction cup and the second reaction cup are respectively arranged in different measuring cavities; the first reaction cup is used for placing a standard sample; the second reaction cup is used for placing a contrast sample; the first galvanic couples are arranged in the measuring cavity and respectively record temperature data of the first reaction cup and the second reaction cup, and the refrigerating mechanism is used for adjusting the temperature of an annulus between the freezing cavity and the measuring cavity. According to the invention, the temperature in the freezing cavity is rapidly reduced to ensure that the temperature in the annulus can be constant, so that simulation of a real low-temperature environment is provided for well cementation cement slurry.