195results about How to "Efficient measurement" patented technology

In a measurement processing apparatus for measuring a geometric feature of an object image: a measurement-reference-element setting unit automatically sets at least one first measurement reference element for use in measurement of the geometric feature of the object image, at at least one first position on the object image based on first image data representing the object image and position information indicating at least one second position of at least one second measurement reference element which is set on a measurement reference image corresponding to the object image; and a geometric-feature measurement unit measures the geometric feature of the object image based on the at least one first position of the at least one first measurement reference element.

The utility model relates to the technical field of model tests, and discloses a landslide damage simulation test device which comprises a model test box, a rainfall frame, a hydraulic assembly, a plurality of spraying assemblies, a water tank assembly and a constant temperature system. The angle of the landslide model box can be adjusted through the hydraulic machine so as to change the slope of a model test landslide soil body; the multiple spraying assemblies are arranged at the top of the rainfall frame and located over the model test box, the output ends of the spraying assemblies aim at a test soil body in the model test box, the influence of rainfall on landslide slippage is simulated by adjusting the spraying size, and the constant temperature system is arranged at the top of the model test box and used for regulating and controlling the temperature of the test soil body. The constant temperature system is used for measuring the influence of the dry-wet cycle effect on the landslide soil body.

The invention discloses a water level signal analyzing and processing method and system, and relates to the technical field of water level signal analyzing and processing. Comprising the steps of placing a plurality of water level gauges and collecting water level signals of the water level gauges; performing primary processing on the collected water level signal; verifying the effectiveness of the sampling point of the water level signal and the effectiveness of the measured value; and carrying out secondary processing on the water level signal, and carrying out automatic early warning according to a secondary processing result. The accuracy and timeliness of water level prediction are improved, flood control and reservoir management are facilitated, abnormal water level conditions can be found and handled in time, and disaster risks are reduced.

The invention relates to the technical field of ultrasonic measurement, in particular to a heart parameter measuring method and system. According to the heart parameter measurement method, the position of the heart is acquired, and the probe is finely positioned according to the position of the heart, so that the probe can accurately and quickly find and acquire the ultrasonic image at the standard section of the heart; then capturing a target standard section in the ultrasonic image by adopting a pre-trained self-supervised deep learning model; and finally, carrying out key frame extraction on the 2D echocardiogram video so as to measure a heart structure in a key frame to obtain heart structure parameters, cutting out a region of interest in the Doppler echocardiogram, and carrying out segmentation processing on the region of interest to obtain functional parameters of the heart. By means of the mode, various parameters of the heart can be accurately and efficiently obtained, full automation is achieved in the whole process, and the accuracy and consistency of various parameter test results of the heart are guaranteed.

The invention discloses a full-automatic intelligent multifunctional high-order nonlinear fluorescence dynamics testing method and device, and relates to the field of nonlinear optics and nano photonics. An optical testing device composed of an exciting light generation module, an automatic power regulation module, an exciting light modulation module, a sample scanning module, a data acquisition and analysis module and an intelligent control module is established, and under the excitation of incident laser, based on the overall coordination of the intelligent control module, the optical testing device is established. Other modules are driven to complete the dynamic response test of a nonlinear fluorescence sample, and full-automatic intelligent, multifunctional, high-precision, simple, efficient, low-cost and universal fluorescence dynamic test analysis is realized. The problems that traditional manual operation wastes time and labor and the testing precision is low are solved. In addition, the multifunctional integration of the fluorescence response curve, the fluorescence rise time, the fluorescence lifetime and the fluorescence imaging effectively improves the test efficiency and the application scene, and greatly reduces the system cost.

The invention belongs to the field of experimental research of rock seepage, and provides a non-linear seepage flow velocity equivalent testing device for simulating fractured rock mass, which comprises a water storage container, a water supply part, a pressure measuring part, a pore matrix part and a through fracture, the output end of the water supply part is communicated with the water storage container, and the water storage container is communicated with the pressure measuring part and the pore matrix part; the pore matrix part is filled with a pore matrix, the pore matrix is of a hollow cylindrical structure, the hollow part of the pore matrix forms the through crack, and the through crack is blocked or partially filled; the pore matrix part is provided with a drainage chamber, and a water source in the water storage container enters the drainage chamber through the pore matrix; according to the method, the change condition of the flow velocity of the rock mass with the through cracks at the through cracks can be effectively measured, the seepage flow containing the through cracks can be accurately calculated, and the change rule of the non-linear seepage flow velocity is provided.

The hydraulic part inner diameter detection device comprises a rack, and a working frame, the end face of which is provided with a circular hole; the bearing jig is connected to the working frame and used for bearing the workpiece, and a through hole corresponding to the round hole is also formed in the bearing jig; the positioning mechanism is used for fixing the workpiece on the bearing jig; the calibration piece, the round hole and the through hole are concentrically arranged, and the calibration piece is used for correcting the position of the inner hole measuring head; and the detection mechanism comprises a telescopic inner hole measuring head which can sequentially penetrate through the ring gauge and the circular hole, extends into the workpiece and is used for measuring the inner diameter of the workpiece. The device is compact and reasonable in structure and convenient to operate, accurate, lossless and efficient measurement of the inner diameter of a non-standard part is achieved through accurate calibration, positioning and a flexible measurement mechanism, the measurement precision and efficiency are remarkably improved, the operation difficulty and the part damage risk are reduced, and powerful support is provided for quality control in industrial production.

The invention discloses a cable copper shielding layer damage and damage opening size detection method, system and device based on the combination of a frequency doubling measurement method and a step-by-step evaluation method and a storage medium, and is applied to the technical field of power equipment state detection. Comprising the following steps: respectively acquiring measurement results of a cable to be measured under Chirp signal injection of Gaussian envelopes with single and double center frequencies, and determining the starting time of an injection signal and the arrival time of a reflection signal according to an extreme value in a time-frequency cross correlation curve; extracting an injection signal and a reflection signal by taking the starting time and the arrival time as extraction starting points and the length of the injection signal as an extraction width, and calculating the damage degree according to the spectrum ratio of the reflection signal to the injection signal; and calculating characteristic impedance based on the damage degree, and sequentially determining the size and length of the central angle of the cable copper shielding layer damage port by using a step-by-step evaluation method. According to the invention, effective detection and positioning of copper shield damage and effective estimation of the damage size are realized.

The utility model belongs to the technical field of production and measurement of driving shaft parts, and particularly relates to a driving shaft part length detection device with an adjusting mechanism, which comprises a main machine body and a laser range finder, guide rails are symmetrically arranged on a table top of the main machine body, and a movable frame and a movable abutting plate are connected onto the guide rails in a sliding manner; a positioning plate and a fixing seat are arranged at the two ends of the guide rail respectively, and a transmission mechanism is arranged between the positioning plate and the fixing seat; the top of the movable abutting plate is connected with a containing box, the laser range finder is horizontally placed in the containing box, the bottom of the movable abutting plate is connected with a fixing block, and the movable abutting plate can automatically slide on the guide rail through cooperation between the fixing block and the transmission mechanism. According to the utility model, the placing box and the laser range finder are arranged on the movable abutting plate, so that when the movable abutting plate moves, the distance between the movable abutting plate and the positioning plate can be automatically detected in real time through the laser range finder, and the length of the driving shaft can be efficiently and accurately measured.

The present invention discloses a rigid-flexible coupling mechanical arm type plant phenotypic information measurement platform and measurement method, including a crawler walking module, a flexible mechanical arm module and a soft mechanical arm module; the soft mechanical arm module includes a rotating motor and a soft mechanical arm component; the soft mechanical arm component includes an index finger component, a thumb component, a soft pad, etc.; the surface of the index finger end joint, the thumb end joint and the soft pad is arranged with a sensor 1 and a sensor 2; the flexible mechanical arm module of the present invention can accurately control the position and direction, and perform efficient and large-scale phenotypic detection. By designing the flexible joint of the mechanical arm, the vibration generated when the mechanical arm moves is reduced, and damage to the plant is avoided when the plant phenotypic information is manually collected, so as to achieve high-precision and high-efficiency measurement of the plant phenotypic information. The present invention realizes accurate, automatic and non-destructive measurement of the phenotypic parameters of plant organs and the phenotypic parameters of the whole plant through the coordination of the index finger and thumb joint of the flexible part and the telescopic arm of the rigid part.

The invention discloses an asymmetric U-shaped optical fiber taper sensing probe, a preparation method thereof and a sensor, and the asymmetric U-shaped optical fiber taper sensing probe comprises an asymmetric U-shaped optical fiber taper and a PDMS cladding for packaging the asymmetric U-shaped optical fiber taper; wherein the asymmetric U-shaped optical fiber taper comprises two taper transition areas and an asymmetric U-shaped taper waist area located between the two taper transition areas. The asymmetric U-shaped optical fiber taper sensing probe has the advantages of being thin in waist diameter and good in stability, has good stress and temperature response characteristics when being used for a sensor, and has important application prospects in the fields of safety monitoring, aerospace, medical treatment and the like.

The invention discloses a radiotherapy system, an auxiliary system and method for evaluating free radical damage and application thereof, a tube body of a cuvette of the auxiliary system comprises side surfaces, a top surface and a bottom surface, the top surface is provided with an opening matched with a shading cover, and the side surfaces comprise a first side surface, a second side surface, a third side surface and a fourth side surface; one end of the first optical fiber is connected with the laser assembly, and the other end of the first optical fiber is connected with the first side surface; the irradiation assembly is arranged on one side of the top surface; the fluorescent light filter is arranged on the third side surface or the fourth side surface; one end of the second fiber is connected with the fluorescent filter, and the other end of the second fiber is connected with the luminosity assembly; the chamber is used for accommodating the cuvette and the fluorescent light filter; for FLASH radiotherapy, the real-time accurate detection of the fluorescence intensity can be realized by optimizing the detection environment, and a reliable platform is provided for free radical damage assessment.

The present invention relates to an ultra-high temperature heat treatment apparatus, characterized by comprising: a cylindrical heater made of a tungsten material; and a tube made of a material having heat resistance to ultra-high temperatures, the heater being made of a mesh structure.

The invention provides a method and a system for measuring pulse width. The method comprises the following steps of: inputting a pulse to be measured into a delay chain; if the pulse to be measured is a negative pulse, directly inputting the pulse to be measured into the delay chain; if the to-be-measured pulse is a positive pulse, inverting the to-be-measured pulse and inputting the to-be-measured pulse into the delay chain; a pulse to be measured is output in a delay chain through a plurality of taps in sequence in a delay manner, and an output signal of each tap of the delay chain is input to the corresponding two-stage D flip-flop; if the to-be-detected pulse output by a certain tap has a negative pulse signal, the corresponding two-stage D trigger outputs a high level; otherwise, outputting a low level; counting the number M of the two stages of D triggers outputting high level, and taking the sum of the reduced widths of negative pulses caused by the delay time of the first M taps on the delay chain propagation path as the width of the negative pulses; wherein M is a positive integer. The pulse compression technology is adopted, the dead time is short, and the resolution ratio is high.

The invention discloses a portable plum blossom contact finger contact pressure detection device, system and method, and the device comprises a pressure detection device, a data processing device, a wireless transmission module and a mobile equipment end, and is characterized in that the data processing device is connected with the pressure detection device, the pressure detection device detects the pressure of a plum blossom contact, and the wireless transmission module is connected with the mobile equipment end. Transmitting the pressure data to a data processing device; and the data processing device transmits the pressure data to the mobile equipment end through the wireless transmission module, and the intelligent AI diagnosis model of the contact state of the tulip contact of the circuit breaker in the mobile equipment end obtains an overhaul suggestion of the tulip contact of the circuit breaker after training the pressure data.

The utility model provides a reinforcing steel bar size detector, which relates to the technical field of reinforcing steel bar detection and comprises a bearing frame, two L-shaped supports are symmetrically embedded at the bottom of the bearing frame in a sliding manner, and rotating shafts are symmetrically and rotatably connected to the bottoms of the two L-shaped supports. According to the utility model, when the diameter of the reinforcing steel bar is measured, the motor is started, under the action of the motor, the two L-shaped brackets move towards the middle, the first roller also moves towards the middle to clamp the reinforcing steel bar to be measured, the laser scanner is turned on, and under the action of the laser scanner and the reflecting plate, the distance between the two L-shaped brackets can be effectively measured; when the length of the reinforcing steel bar is measured, the whole bearing frame is moved to drive the second rolling wheel on the U-shaped support to move, and the length of the reinforcing steel bar needing to be measured can be obtained through rotation of the second rolling wheel under the action of the encoder, so that the operation is simple, time and labor are saved, and the measurement precision and efficiency are effectively improved.

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 a middle-late pregnancy fetus ultrasonic cerebellum standard section image parallel recognition and measurement method and device, computer equipment, a storage medium and a computer program product, and the method comprises the steps: obtaining a middle-late pregnancy fetus ultrasonic image and a deep learning model of cerebellum standard section recognition, the deep learning model is obtained based on multi-node parallel technology accelerated training; inputting the fetus ultrasonic image in the middle-late pregnancy period into a deep learning model to identify a detection frame of each structure in a cerebellar section and a corresponding confidence coefficient; screening each structure in the recognized cerebellar section based on the detection frame and the corresponding confidence to obtain a structure recognition result in the cerebellar section; determining a cerebellum center line according to a structure identification result in the cerebellum section; and measuring the transverse diameter of the cerebellum according to the midline of the cerebellum. According to the whole scheme, efficient and accurate parallel recognition and measurement of the ultrasonic cerebellum standard section image of the fetus in the middle-late pregnancy period can be achieved.

The invention discloses a welding tractor measuring and adjusting method, and the measuring method comprises the steps that an inlet clamp and an outlet clamp are moved to a welding position, the outlet clamp is swung to a middle position, and the inlet clamp and the outlet clamp are oppositely arranged; a welding trolley is moved to at least two first measuring positions between the inlet clamp and the outlet clamp, the first distance between the end face of a lower welding wheel and the end face of the outlet clamp is measured at each first measuring position, the lower welding wheel is arranged on the welding trolley, and the first distance between the end face of the lower welding wheel and the end face of the outlet clamp is measured; when the welding tractor is located at the first measuring position, the end face of the lower welding wheel and the end face of the outlet clamp are oppositely distributed. Parameters of the welding tractor can be effectively measured, and the precision of the welding tractor is ensured.

The invention provides a reservoir inherent frequency downhole in-situ measurement method based on neural network filtering. The method comprises the steps that (1) pulse shock waves are generated through a continuous high-voltage pulse discharging device to induce reservoir rock mass vibration; (2) acquiring natural vibration noise signal data of the continuous high-voltage pulse discharge device during pulse discharge at the wellhead; (3) acquiring a background noise signal of the continuous high-voltage pulse discharge device in a static state in a shaft and feedback vibration signal data during pulse discharge; (4) filtering and noise reduction are carried out on the high-noise background data; (5) carrying out vibration signal analysis; (6) obtaining a Hilbert marginal spectrum, and determining a correlation coefficient between each intrinsic mode and an original vibration signal; and (7) determining the inherent frequency of the target reservoir. According to the method, the inherent frequency measurement of the target reservoir can be directly carried out underground, the problem that the underground inherent frequency measurement is difficult or the indoor inherent frequency test is inaccurate is effectively solved, and the underground in-situ efficient acquisition of the inherent frequency of the reservoir is realized.

The invention relates to a material self-adaptive flip-flow device based on non-contact measurement and a screening method, belongs to the technical field of mineral product screening, and solves the problem that a flip-flow screen in the prior art cannot be suitable for characteristics of fed materials. The device comprises a flip-flow screen, a non-contact measuring mechanism and a counterweight adjusting mechanism, the flip-flow screen comprises a fixed frame and a floating frame, and the floating frame is connected with the fixed frame; the balance weight adjusting mechanism comprises a balance weight, and the balance weight is connected with the floating frame. The non-contact measuring mechanism is arranged on one side of the flip-flow screen and used for obtaining the motion characteristics of the fixed frame and the floating frame, and the motion characteristics are used for adjusting the balance weight. The high-efficiency screening device can adapt to the change of characteristics such as treatment capacity, particle size composition, moisture and hardness of different materials, so that high-efficiency screening is realized.

The invention discloses a device for measuring the insulation diameter of a high-voltage cable, and the device comprises a pair of clamps which are oppositely disposed and are used for clamping a to-be-measured high-voltage cable; the clamp comprises a side wall and a pair of clamping blocks mounted on the side wall, and the clamping blocks clamp a high-voltage cable to be tested therebetween; the sliding rails are arranged between the two clamps; the laser measurement module is connected to the sliding rail in a sliding manner; the laser measuring module is provided with at least two laser distance measuring sensors which are arranged diagonally and used for measuring the insulation diameter of the high-voltage cable to be measured. According to the invention, non-contact measurement can be carried out on the insulation surface of the cable, and the insulation diameter of the cable and the tiny deviation in the X-axis direction and the Y-axis direction can be efficiently, accurately and non-destructively measured; the laser ranging principle is applied, the cable insulation diameter measurement accuracy is improved in cable accessory installation, and an efficient, reliable, accurate and damage-free measurement tool is provided; tiny scratches possibly caused by measurement of a traditional vernier caliper are avoided, and the operation reliability of a cable system is improved.

The present invention relates to the technical field of measuring tools, and specifically to a tool for measuring the flow clearance of a cylinder of a steam turbine in a thermal power plant. The tool comprises a measuring pen, wherein the measuring pen is connected with an initial measurement component and an actual measurement component, wherein the initial measurement component comprises a wedge-shaped measuring platform, wherein the measuring platform is used to extend into the flow clearance and preliminarily measure the width of the flow clearance, and the actual measurement component comprises a detection rod and a detection component, wherein the detection rod is connected with the detection component, and an arc-shaped detection plate is connected with the length direction of the detection rod, and when the blade contacts the detection plate, the cylinder blade pushes the detection plate to rotate. When the detection plate rotates, different rotation angles correspond to different flow clearance distances, and efficient measurement of the flow clearance is achieved according to the different rotation angles measured by the detection component, and the present application can be applied to the measurement of flow clearances of different sizes, and is convenient to use.

The utility model provides an ejection seat regular inspection assembling clearance combination measuring tool, comprising a combination measuring tool used for measuring the installation spacing of a headrest umbrella box, the combination measuring tool comprises a measuring sample plate, the left and right sides of the measuring sample plate are respectively provided with an overturning member with a locking function, each overturning member is provided with a feeler gauge, and the feeler gauge is provided with a clamping groove. According to the utility model, one set of combined measuring tool can be used to measure the installation spacing of the two types of ejection seat headrest umbrella boxes and the installation gap of the hook-shaped lock, the measurement is more accurate, convenient, rapid and efficient, the carrying and storage are more convenient, the detection operation can be realized without the cooperation of a plurality of sets of detection tools, and the detection efficiency is improved. The detection process is greatly simplified, and the detection efficiency is improved.

The application discloses a kind of SF6 density relay comprehensive calibration instrument and calibration and measurement method, including intermediate pipeline and be located on the air pump of intermediate pipeline, the one end of the intermediate pipeline is respectively communicated with the one end of safety valve pipeline, first pipeline one end, second pipeline one end, the other end of intermediate pipeline is respectively communicated with the one end of micro water measuring pipeline and third pipeline one end, the other end of the micro water measuring pipeline is respectively communicated with the one end of inlet pipeline and purity measuring pipeline, the other end of third pipeline is respectively communicated with the other end of first pipeline and fourth pipeline one end, the other end of the fourth pipeline is respectively communicated with the other end of purity measuring pipeline, the other end of second pipeline and muffler pipeline, intermediate pipeline side is equipped with suction pipeline;The application has adopted new pneumatic circuit design, combines density relay system calibration circuit with moisture measurement circuit and purity measurement circuit together, with the characteristics such as high measurement efficiency, convenient, its loop structure is simplified, and measurement is efficient.

The present invention relates to the technical field of blood pressure detection, and discloses a multi-person blood pressure measurement system, medium, and equipment based on intelligent speaker ultrasonic signals, including: intelligent speakers, emitting ultrasonic signals of different frequencies and receiving corresponding signals; a phase compensation module, combining spatial domain beamforming and frequency domain beamforming to construct the phase difference of the subcarrier of the microphone compared to the subcarrier emitted by the speaker and perform phase compensation; a multi-user signal separation module, separating user signals at different angles; an ultrasonic heartbeat signal extraction module, extracting heartbeat signals from user signals at each angle; a blood pressure measurement network model construction module, constructing a blood pressure measurement network model; a blood pressure prediction module, training the blood pressure measurement network model, and inputting the extracted heartbeat signal into the trained model to obtain a blood pressure prediction result. The present invention can realize non-contact, real-time and effective measurement of blood pressure of multiple people, and has high ease of use and accuracy.

The invention relates to a satellite-borne radar antenna baseline real-time six-degree-of-freedom measurement device and a measurement method. The satellite-borne radar antenna baseline real-time six-degree-of-freedom measurement device comprises a distance measurement assembly, a rotation angle measurement assembly and a displacement measurement assembly, one side of a satellite is provided with an extension arm capable of extending or retracting, one side of one end, away from the satellite, of the extension arm is provided with an extension antenna, and the distance measurement assembly is installed on one side of the satellite and the extension antenna. The displacement measuring assembly is arranged on one side of the satellite and on the extending antenna and used for measuring the rotation angle of the extending antenna surrounding the satellite and the rotation angle of the extending antenna rotating around the satellite, and the displacement measuring assembly is arranged on one side of the satellite and on the extending antenna and used for measuring the displacement change of the extending antenna in the antenna base line direction. The angle of rotation of the extension antenna around the axis of the extension arm is measured. The device has the advantages of being reasonable in structural design, and capable of measuring the position and the rotation angle of the extending antenna relative to the fixed antenna in real time, and further correcting a radar baseline in real time to ensure the on-orbit working performance of the radar.

The utility model provides a heavy rotor bending degree disc dynamic measuring device. The heavy rotor bending degree disc dynamic measuring device comprises a bottom plate, two symmetrically-arranged rolling mechanisms and a supporting mechanism. The rolling mechanism is movably connected with the bottom plate through the supporting mechanism. According to the heavy rotor bending degree disc dynamic measurement device provided by the invention, general and efficient measurement of the bending degree of the heavy rotor can be realized.

A cactus peeling and deburring device relates to the field of automation equipment and comprises a conveyor belt mechanism, a pushing mechanism is arranged on the left side of the conveyor belt mechanism, and a thickness detection mechanism, an end cutting mechanism and a peeling mechanism are arranged over the conveyor belt mechanism. According to the cactus peeling and deburring device, the conveyor belt mechanism, the pushing mechanism, the thickness detection mechanism, the end cutting mechanism and the peeling mechanism are integrated, and automatic processing of cactus is achieved. According to the design, the treatment efficiency is improved, the complexity and the labor intensity of manual operation are reduced, and meanwhile, the treatment quality and the treatment precision are guaranteed.