1179results about How to "Improve measurement accuracy" patented technology

The invention discloses a vehicle-mounted sign retroreflection brightness coefficient detection method and system, and the method comprises the steps: obtaining the image data and point cloud data of a to-be-detected road region shot by an observation module at the top of a detection vehicle, and carrying out the detection of the to-be-detected road region according to a pre-trained first deep learning detection model; obtaining a relative distance between the to-be-detected signboard in the to-be-detected road area and the detection vehicle; when the relative distance meets a preset shooting distance, triggering the detection module to continuously shoot the signboard to be detected with light source illumination and without light source illumination, and respectively inputting two continuous frame images obtained by continuous shooting into a deep learning classification recognition model to obtain a target signboard image, the difference between the average gray values of each target signboard image is calculated to obtain an interference-free gray value, the retroreflection brightness coefficient of the signboard to be detected is obtained according to a preset retroreflection conversion formula, the continuous frames of images are used, interference brought by the external environment during measurement of the retroreflection brightness coefficient of the signboard is eliminated, and the measurement accuracy is improved.

The invention relates to the technical field of sensors, and provides a six-dimensional force sensor based on a planar semiconductor process and a preparation method thereof, and the six-dimensional force sensor comprises a central bearing platform, a housing, an elastic beam and a buffer beam. One end of the elastic beam is connected to the center bearing table, the other end of the elastic beam is connected to the buffer beam, the buffer beam and the elastic beam are orthogonally arranged, and the end, away from the elastic beam, of the buffer beam is connected to the shell. Wherein the surfaces of the elastic beam and the buffer beam are provided with six groups of strain gauges, and the six groups of strain gauges are respectively used for measuring forces in three directions and moments in three directions. According to the method, the multi-load-step-based least square method linear matrix decoupling is adopted, so that the inter-dimensional coupling error of the six-dimensional force sensor is reduced to below 2%. According to the invention, the six-dimensional force sensor is prepared by adopting a planar semiconductor process, the difficulties of side surface attachment and side wall lead binding of the strain gauges are avoided, and the six-dimensional force sensor has the advantages of simple process, low manufacturing cost and small crosstalk error.

The invention belongs to the technical field of intelligent weighing, and more particularly relates to an intelligent self-adaptive electronic scale system based on machine learning and a data processing method, and the system comprises a composite sensor module which is used for collecting gravity, volume and shape information; the automatic calibration module is connected with the composite sensor module and is used for carrying out regular calibration and calibration according to the data of the composite sensor module; the wireless networking module is connected with the automatic calibration module and is used for wirelessly transmitting and interacting the calibrated data; the intelligent operation and maintenance module is connected with the wireless networking module and is used for receiving the transmitted data and realizing equipment state monitoring and anomaly detection; the environment adaptation module is connected with the intelligent operation and maintenance module and is used for realizing adaptive compensation in a severe environment according to a detection result; and the man-machine interaction module is connected with the environment adaptation module and is used for displaying a compensated result and realizing a user-friendly operation interface, so that high-precision and all-around weighing perception is realized.

The invention discloses a PUF (Physical Unclonable Function) generation device and a PUF generation method based on a magnetoresistor or a magnetosensitive current sensor. The signal acquisition and processing module acquires a voltage output signal of each magneto-sensitive current sensor and calculates a voltage effective value and a zero offset value; the signal acquisition and processing module uses the calculated effective value output by each magneto-sensitive current sensor to obtain the current value of the conductor to be measured; and the PUF processing module correspondingly generates a digital code of 1 or 0 according to the zero offset value of each magneto-dependent current sensor, and takes the obtained n 1 or 0 digital code sequences as a generated physical unclonable function PUF for digital identity authentication. According to the method, the PUF sequence is generated by adopting the own characteristics of the TMR, the characteristics of good confidentiality, simple scheme, high practicability and the like are achieved by utilizing the randomness of the process, an additional PUF chip does not need to be added, and the additional cost is not increased. With the increase of the TMR number, the higher the measurement accuracy is, the higher the safety is.

The invention relates to the field of computer vision and ophthalmology medicine, and provides an anterior segment parameter measurement method and device, electronic equipment and a storage medium, and the measurement method comprises the steps: repairing a panoramic AS-OCT image based on a generative adversarial network, and eliminating a central axis and artifacts in the panoramic AS-OCT image; based on an image segmentation model, segmenting each structure of an anterior segment in the restored panoramic AS-OCT image to obtain corresponding segmented images; performing key structure positioning on the repaired panoramic AS-OCT image by using a preset positioning model to obtain a corresponding positioning result; and based on the segmented image and the positioning result, measuring anterior segment parameters related to the panoramic AS-OCT image to obtain a corresponding biological parameter measurement result. According to the invention, the automation degree, accuracy and efficiency of the measurement of the biological parameters of the anterior segment in the AS-OCT image can be greatly improved, and powerful support is provided for the diagnosis and treatment of ophthalmic diseases.

The invention relates to the technical field of automobiles, and provides a force sensor, an electronic mechanical braking system and an automobile, the force sensor comprises a force bearing part and a plurality of strain gauges, the force bearing part comprises an induction area, a first groove is formed in the force bearing part, and the first groove surrounds and surrounds the induction area; each strain gauge comprises a first side edge and a second side edge which are connected with each other, and the length of the first side edge is greater than that of the second side edge; wherein the strain gauges are arranged in the induction area at intervals around the center of the induction area, and the first side edges and the second side edges of every two adjacent strain gauges face the center of the induction area in a staggered mode. The accuracy of the output result of the force sensor can be improved, and the performance stability of the force sensor is improved.

The invention discloses a traceable flue gas flow measurement system and method for a large-diameter chimney, and belongs to the field of flue gas flow measurement. The system comprises a tracer gas cylinder used for containing a tracer; the flow controller is used for controlling the output flow of the tracer agent; the tracer agent output from the flow controller is injected into the upstream position of the chimney pipeline through the tracer agent injection probe so as to be mixed with the flue gas; the tracer sampling probe is mounted at the downstream position of the chimney pipeline and is used for extracting a mixed gas sample through a gas pump; and the gas analyzer is used for analyzing the obtained gas sample and calculating the volume flow rate of the flue gas in the chimney pipeline. According to the invention, the volume flow of the flue gas in the chimney is directly calculated by monitoring the concentration change of the tracer agent in the flowing process in the pipe, so that the accuracy of flow measurement is improved, and the measurement result has traceability.

The invention relates to a focused ion beam ultrathin section sample preparation pretreatment method for a wafer sample, and belongs to the technical field of wafer material microscopic experiments. The wafer sample preparation pretreatment method provided by the invention comprises the following steps: (1) depositing a metal oxide on the surface of a wafer sample by adopting an atomic layer deposition technology to obtain an ALD layer; (2) coating a curing glue solution on the surface of the ALD layer, and curing to obtain a curing glue layer; and (3) plating a conductive protection layer on the surface of the cured adhesive layer to finish sample preparation pretreatment. The sample preparation pretreatment method disclosed by the invention can well solve the problems of irradiation damage and deformation of a fine structure which is not resistant to electron beam irradiation, curtain effect in a cutting process, unobvious structural boundary in a shooting process and the like in focused ion beam ultrathin section sample preparation, and has good application prospects in the technical field of wafer material microscopic experiments. And the practical value is very high.

The utility model relates to a cross-shaped three-dimensional force touch sensor. The sensor comprises a contact, a base and four sensing units, the square base comprises a platform and a PCB (Printed Circuit Board); wherein a square groove is formed in the middle of the upper surface of the platform; the PCB is in a frame shape and covers the outer edge of the square groove. The structure of each sensing unit is composed of a TMR element, a vertical plate, a square permanent magnet and an iron gallium wire; the vertical plate is fixed in the middle of the inner wall of the square groove, and the TMR element is attached to the outer wall of the vertical plate; one end of the iron gallium wire passes through the through hole and is connected with the TMR element, and the other end is inserted into a circular hole of a pillar 4 of the contact. The four iron gallium wires of the four sensing units are jointly inserted into the four round holes of the contact pillar 4 to form a cross structure. The sensor provided by the utility model has the advantages of small overall size, high sensitivity and strong stability, and also shows good dynamic performance, and has short response time and recovery time.

The invention discloses a suspension type viscosity and density on-line measuring device and a suspension type viscosity and density on-line measuring method. The device comprises a cavity, a rotating part, a reference rotor, a suspension rotor, a torsional elastic piece and a distance measuring sensor, the rotating part is fixedly connected to the cavity; the reference rotor is fixedly connected to the outer wall of the rotating shaft, synchronously moves along with the rotating shaft and is higher than the liquid level of measured liquid; a suspension detection end is arranged at the upper end of a suspension body of the suspension rotor, the suspension body is connected with the rotating shaft through a torsion elastic piece, the suspension body suspends in detected liquid, the suspension detection end is exposed out of the detected liquid, and the suspension rotor is driven by the rotating shaft to rotate; the distance measuring sensor fixed in the cavity measures the rotating speed of the reference rotor, the axial displacement of the suspension detection end and the phase difference between the reference rotor and the suspension rotor so as to calculate the viscosity and density of the liquid to be measured. The device has the effects of measuring the density and the viscosity of the liquid in real time and being high in measurement precision.

The invention discloses a bolt pre-tightening force testing method based on an electromagnetic ultrasonic pre-tightening force measuring system, and the method comprises the steps: collecting the waveform data of transverse and longitudinal waves generated by an electromagnetic ultrasonic probe, and only processing the current frame echo data and historical accumulated data each time through a data averaging algorithm. The storage space only needs to store the historical accumulated data received by the electromagnetic ultrasonic probe once, so that the processing speed and the signal-to-noise ratio of the data are improved; and automatically identifying and calculating the wave peak sound time enveloped by the transverse and longitudinal wave echoes of the bolt through a peak value algorithm, fitting to obtain a calibration curve corresponding to the bolt of the model specification through the ratio of the transverse and longitudinal wave sound time to the bolt pre-tightening force corresponding to the time period, and measuring the pre-tightening force of other bolts of the same model specification by using the calibration curve. The method is easy and convenient to operate, effective transverse waves and longitudinal waves can be excited at the same time, and measurement precision and accuracy are high.

The detection device comprises a detection shell, a light source module, a detection probe and a circuit board, an optical gas chamber is arranged in the detection shell; the detection shell comprises a first reflecting surface, the first reflecting surface is located on the periphery of the optical gas chamber, and a reflecting layer is at least partially attached to the first reflecting surface; the detection shell is provided with a plurality of first vent holes, the first vent holes are in gas communication with the outside of the detection device, and the first vent holes are in gas communication with the optical gas chamber; at least part of the light source module is located in the detection shell, the light source module is electrically connected with the circuit board, and the light source module is close to the first reflecting surface relative to the detection probe; the detection probe is at least partially located in the detection shell, and the detection probe is electrically connected with the circuit board. In the detection device, at least part of the first reflecting surface is attached with the reflecting layer, so that the reflectivity of light is increased, light loss caused by diffuse reflection of light in the detection shell is reduced, and the measurement accuracy of the detection device is improved.

The invention discloses a projector automatic focusing method based on a spectrum sensor and related equipment, and the method comprises the steps: carrying out the wavelength decomposition of a reflected light signal, and obtaining a light intensity value; calculating an initial distance value between the projector and the projection surface; carrying out integral operation on the acceleration data and the angular velocity data to obtain a position offset and an attitude angle offset; determining a compensation distance, and calculating an actual projection distance; controlling a stepping motor to drive a lens assembly to move to a focusing position corresponding to the target focal length value; controlling a stepping motor to drive a lens assembly to reciprocate; a new reflected light signal is collected again after each reciprocating motion; processing the new reflected light signal based on a preset mapping model to obtain a current measurement distance; and when the deviation value between the current measurement distance and the preset optimal imaging distance is smaller than a preset threshold value for the first time, determining the focusing position corresponding to the final measurement distance as a final focusing position. The automatic focusing precision of the projector is improved, and the definition of a projection picture is further improved.

The invention relates to the technical field of data processing, in particular to a calibration system and calibration method for inertial measurement units, and the system comprises a setting module which firstly determines a plurality of key point locations of a test aircraft and arranges a plurality of inertial measurement units according to the key point locations. The data acquisition module acquires the real-time acceleration of the inertial measurement unit according to a preset frequency. The comparison module compares the real-time acceleration of each unit, determines a first acceleration range according to the result, further determines a first calibration parameter, or adjusts the frequency, and sends out a secondary judgment instruction. And after receiving the instruction, the route judgment module draws a real-time route map according to the real-time acceleration, compares the real-time route map with a preset route map to determine a second calibration parameter, and adjusts the first acceleration range or sends out three judgment instructions if necessary. And after receiving the instruction, the temperature judgment module collects a real-time temperature value, draws a curve and analyzes the curve, and determines a third calibration parameter. And the calibration module comprehensively applies the parameters to calibrate the inertial measurement unit. The measurement accuracy of the inertial measurement unit is improved.

The invention discloses a coal seam gas content determination method. The method comprises the following steps: collecting a coal sample and placing the coal sample in a coal sample closed desorption container for closed normal-pressure desorption; opening the corresponding branches based on the change of the gas flow; working condition flow data and corrected gas flow data in the standard state are determined based on the laminar flow sensors on the branches and measurement data of the environment temperature sensor and the environment pressure sensor, and then the loss amount is calculated; the coal sample crushing device crushes the coal sample, and the corresponding branch is opened again based on the change of the gas flow until the desorption work is stopped; based on measurement data of each sensor, the coal sample mass is calculated to finally determine the coal seam gas content. The parameters such as the temperature, the pressure and the pressure difference of fluid flowing through the laminar flow sensor are measured in real time, the flow in a standard state is obtained after calculation and correction, and the measured gas flow and volume data are more scientific and accurate through temperature and pressure compensation.

The invention provides an integrated light quantum mixed-phase flow meter and a mixed-phase fluid measurement method, relates to the technical field of industrial mixed-phase fluid measurement, and aims to solve the problem that an existing underwater flow meter is poor in measurement accuracy of a mixed-phase fluid medium in a deep-sea oil and gas well. The integrated light quantum mixed-phase flow meter comprises a flow meter body, a fluid metering channel penetrates through the center of the flow meter body, and the integrated light quantum mixed-phase flow meter is applied to a deep-sea oil-gas well. The flowmeter main body is a sealed cylinder, and two groups of electric connectors are arranged at the top of the flowmeter main body; the fluid metering channel comprises an inlet pipe section and a middle measuring pipe section, and the middle measuring pipe section is provided with an inner throttling body of a spindle structure; a plurality of sets of measuring systems are integrated on the flowmeter main body, and each set of measuring system is arranged between the fluid metering channel and a shell of the flowmeter main body and is used for measuring the flow of each phase medium in the mixed-phase fluid flowing through the inner-section fluid; a sealing partition plate is arranged on the side, away from the fluid metering channel, of each measuring system and used for isolating seawater.

The utility model discloses an automobile electronic product waterproof performance detection device, which belongs to the technical field of waterproof performance detection devices, and comprises a detection device main body and a pressurization device, the top of the detection device main body is connected with two support plates, and the tops of the two support plates are provided with the same cooling mechanism; by arranging the sealing mechanism, the stroke groove, the base plate and the sealing ring, the sealing ring has a certain buffering distance when being extruded, irreversible deformation caused by excessive extrusion of the sealing ring is avoided, the service life of the sealing ring is prolonged, the sealing ring can be tightly attached to the sealing groove by arranging the first spring, and the sealing effect is improved. The air tightness of the mold and the measurement accuracy of the device are improved, the air bag is extruded through the connecting plate, the air bag blows out air, and therefore the temperature in the first mold can be rapidly reduced, the speed of recovering the normal temperature of the first mold is increased, the waiting time is shortened, and then the measurement efficiency is improved.

The invention relates to an inter-beam time synchronization measurement device and method after high-power laser beam splitting. The device comprises a triple frequency simulation light source, a first photoelectric tube, a second photoelectric tube, a high-speed oscilloscope and a data processing module. The frequency tripling simulation light source provides frequency tripling light signals of all light paths to be measured, the first photoelectric tube receives the light signals to be measured and outputs electric signals to be measured, and the second photoelectric tube receives time reference light signals and outputs time reference electric signals. The high-speed oscilloscope receives the electric signal to be measured and the time reference electric signal and outputs waveform sequence data to the data processing module, and the module calculates the time interval delta t between the waveform sequence data. According to the method, triple frequency simulation light is divided into a plurality of laser beams through a beam splitting module, and each laser beam reaches a target spot through an independent terminal transmission module. A first photoelectric tube is arranged at a target spot to measure the arrival time of each laser beam, and a second photoelectric tube is arranged in a terminal transmission module of a certain split laser beam to serve as a time reference. A light beam to be measured is selected through the shading assembly, and the time interval between each laser pulse and the time reference pulse is calculated by using a cross-correlation analysis method. According to the invention, high-precision measurement of time synchronization between high-power laser beam splitting is realized, and main laser emission or additional devices are not needed.

The present invention relates to the technical field of flowmeters, and in particular to an open channel flowmeter, comprising a fixed pile assembly, a second straightening mechanism being connected to the center of the fixed pile assembly, columns being arranged on both sides of the second straightening mechanism, a pressing mechanism being connected through the columns, a first fixing mechanism being connected to the top of the columns, a flowmeter being arranged below the pressing mechanism, and a sharp bottom of the mounting column on the flowmeter. The present invention completes installation and disassembly of the open channel flowmeter by moving the pressing mechanism up and down, ensures that no tilting occurs during the installation process by the second straightening mechanism, and completes mobile installation of the open channel flowmeter by the fixed pile assembly.

The invention relates to axle bearing axial clearance measuring equipment and a using method thereof, the equipment comprises a supporting platform, a hoisting fixing device, a transverse sliding device, a longitudinal sliding device, a measuring device and a force applying device, the hoisting fixing device, the transverse sliding device, the longitudinal sliding device and the measuring device are all arranged on the supporting platform; the longitudinal sliding device is connected with the transverse sliding device, and the force application device is connected to the longitudinal sliding device. According to the using method, the whole equipment is hoisted to an axle through the hoisting and fixing device and is fixed together; the transverse sliding device and the longitudinal sliding device are used for driving the force application device to move; the force applying device is used for pushing the axle hub to apply axial force, and the measuring device measures the axial clearance of the bearing in the hub. The stability of a measurement result is ensured, the measurement precision and accuracy are improved, automatic measurement is realized, the operation is simple, convenient and rapid, and the measurement efficiency is improved.

The invention provides an automatic gain control method and circuit of an ultrasonic flow metering device, and aims to improve the accuracy and stability of flow metering. According to the method, the gain is automatically adjusted by measuring the pulse width of an echo signal and comparing the pulse width with an expected value. The circuit comprises a transmitting circuit, an ultrasonic transducer, a variable gain amplifier, a variable threshold comparator, a zero-crossing comparator, a flight time measuring unit, a pulse width measuring unit, a time-to-digital converter and a calculation and control unit. According to the scheme, independent gain configuration of uplink and downlink flight time and a fine gain adjustment strategy based on echo amplitude change can be realized. In addition, by setting the allowable maximum pulse width change value, whether the measurement error is within a reasonable range can be automatically judged, and re-measurement can be carried out when necessary. According to the integrated design scheme, the flexibility and the response speed of measurement are improved, the signal processing flow is optimized, and an innovative solution is provided for ultrasonic flow metering.

The invention belongs to the technical field of ultrasonic Doppler blood flow imaging, and particularly relates to a three-dimensional ultrasonic vector Doppler imaging method based on a row-column addressing array. According to the method, three-dimensional ultrasonic vector Doppler imaging is realized by combining a high-frame-rate two-dimensional non-focused wave emission sequence and a row-column addressing array (RCA) of a least square multi-angle Doppler velocity estimator; the method specifically comprises the following steps: acquiring radio frequency data from each oblique non-focused wave emission, and then performing IQ demodulation, beam forming and clutter filtering; performing high-frame-rate multi-angle vector Doppler analysis and speed estimation on a result through RCA; and dual-wavelength anti-aliasing processing is carried out. According to the invention, the imaging speed of more than thousands of frames can be realized, the sensitivity to low-speed flow and the measurement accuracy to high-speed flow are obviously improved, and clinical environment experimental verification is carried out; the method is suitable for clinical application, especially for blood flow dynamic monitoring of large blood vessels, and important support can be provided for blood flow dynamic research and clinical diagnosis.

The invention discloses a mirror surface object detection method and system based on single-phase measurement deflection and tactile perception fusion, and the method comprises the steps: projecting a fringe pattern with a fixed phase shift to the surface of a mirror surface object through a Mono-PMD system, capturing the fringe deformation of a mirror surface region through a camera, and obtaining the relative height information of the surface; the touch sensor is introduced to directly measure the absolute height of a key point, and the ambiguity problem of the height and the gradient due to the fact that the Mono-PMD can only provide the relative height is solved; and then based on height data acquired by a touch sensor, combining the relative height of visual measurement with the absolute height of touch detection by using a polynomial fitting method, and finally realizing three-dimensional shape reconstruction of the whole mirror surface object. The method effectively solves the problem of ambiguity of height and gradient, and improves the precision and efficiency of three-dimensional reconstruction through polynomial fitting.

The invention relates to the technical field of sensor data processing, and discloses an ammonia gas sensor data optimization and early warning method, which comprises the following steps: acquiring historical measurement data of a target ammonia gas sensor; preprocessing the historical measurement data; segmenting the preprocessed historical measurement data according to a time window to obtain multiple segments of historical measurement data; performing optimization processing on each section of historical measurement data; inputting the optimized historical measurement data of the target section into a target ammonia gas sensor data prediction model to obtain a first prediction value set; and determining an early warning result of the target ammonia gas sensor according to the plurality of first predicted value sets corresponding to the plurality of sections of historical measurement data. According to the embodiment of the invention, the ammonia gas sensor data prediction model constructed based on the GRU network and the feature enhancement network is adopted to predict the historical measurement data, and early warning is carried out according to the prediction result, so that the ammonia gas monitoring accuracy and the safety degree are improved.

The invention relates to the technical field of ultrasonic thickness measurement, in particular to a sewage pipeline scale deposition thickness measurement method and system. The method comprises the following steps: firstly, obtaining all similar ultrasonic wave band groups among all ultrasonic wave signals at the same measuring point, and further screening out all stable wave band groups; symmetrically fusing the two ultrasonic signals of each group of preset measuring points to obtain confidence weights of fused ultrasonic signals of each group of preset measuring points under each frequency; and finally, evaluating the scale deposition thickness of the sewage pipeline based on all the fused ultrasonic signals and the corresponding confidence weights. According to the method, the stable ultrasonic wave section is determined through the similar fluctuation characteristics of the ultrasonic wave signals at the same angle and different frequencies, then the ultrasonic wave signals at the measuring points at the symmetrical angle are fused, the confidence coefficient is evaluated, and therefore the pipeline accumulated dirt thickness is accurately evaluated based on the confidence coefficient and the fused ultrasonic wave signals; the interference of other external factors on the ultrasonic signals is reduced, and the measurement accuracy of the pipeline scale deposition thickness is improved.

The invention discloses a digital output current measurement method and system based on a TMR array, and the method comprises the steps: obtaining a secondary analog voltage signal which is output by a TMR rectangular array at a t moment and is in direct proportion to a primary measured current signal, and carrying out the low-pass filtering and high-pass filtering, thereby obtaining a low-frequency voltage signal and a high-frequency voltage signal; under the triggering of a sampling clock, after analog-to-digital conversion and Fourier transform are carried out on the low-frequency voltage signal and the high-frequency voltage signal, a power-frequency current signal and a high-frequency current signal measured by a TMR current sensor are obtained, and delay error sampling time caused by desynchrony between an analog-to-digital conversion sampling clock signal and a trigger signal is analyzed; acquiring the microprocessing time of the microprocessor for the low-frequency discrete voltage signal and the high-frequency discrete voltage signal; and performing correction according to a phase error caused by the delay error sampling time and the micro-processing time, and encoding the corrected measurement data to obtain a corresponding digital output current.

The utility model provides a bidirectional scattering distribution measuring system, which comprises a test base and a data transceiving control unit, the test base comprises a light source module, a detection module, a sample table, a first rotating mechanism enabling the sample table and the light source module to rotate relatively, and a second rotating mechanism enabling the sample table and the detection module to rotate relatively; a light beam emitted by the light source module enters a to-be-detected sample at a certain angle, and the detection module receives scattered light acted by the sample from another angle; the detection module comprises two or more detection units and a first switching mechanism used for switching the detection units. Compared with the prior art, different detection units are switched into an optical path through the first switching mechanism in an electric switching or mechanical switching mode, the multi-band spectral measurement requirement is met, and the multi-band spectral measurement device has the advantages of being high in automation degree, convenient to operate, high in measurement accuracy, wide in application range and the like.

The invention relates to the technical field of automobile manufacturing, discloses a measuring gauge for the ablation edge angle and the profile tolerance of a door ring single plate, and solves the problems that an existing measuring gauge for the ablation edge angle and the profile tolerance of the door ring single plate can only perform single-dimension linear measurement, time and labor are wasted due to multi-step operation, and efficiency is low. The device comprises a frame, a workbench arranged at the top end of the frame and a dial indicator movably connected to one side of the workbench, the dial indicator is stably fixed through driving of a three-clamp structure, a driving structure, a moving assembly and a fixed-point measurement structure, the measurement accuracy and reliability are improved, meanwhile, a camera can record data in real time, three-face clamping is conducted on a single plate, and the measurement accuracy and reliability are improved. The device is simple in structure and convenient to operate, ensures that the device is fixed in position in the measurement process, can perform multi-path and fixed-point equidistant measurement on the measurement surface of the single board, improves the measurement integrity and accuracy, facilitates the evaluation of the quality of the single board, can achieve comprehensive and efficient continuous measurement through the cooperation of a short rack and a second gear, and is suitable for large-scale production measurement.

The invention provides a medicine cake separated moxibustion applying device with a temperature monitoring function and a temperature monitoring method.The medicine cake separated moxibustion applying device comprises a heat insulation sleeve assembly, an ultrasonic sensor, an infrared sensor and a display and data processing assembly, a medicine cake covers a target acupuncture point of the body surface of a patient, and the heat insulation sleeve assembly is arranged on the outer side of the medicine cake in a sleeving mode; the medicine cake is located at the bottom of the inner side of the heat insulation sleeve assembly, the ignition end of the moxa stick extends into the heat insulation sleeve assembly and is located over the medicine cake, and the ultrasonic sensor and the infrared sensor are aligned to the skin away from the center point of the medicine cake by a target distance and used for measuring the skin temperature Tskin of the corresponding position; according to the method, the temperature Tunder of the skin of a medicine cake covering part is calculated through Tskin, it is ensured that the moxibustion applying temperature is within a safe range, skin burn caused by too high temperature is avoided, temperature control is accurate, when Tunder exceeds a preset threshold value, a reminding alarm signal is sent out, effective transmission of heat and medicine can be ensured, and the treatment effect and safety can be improved.

The invention provides a heeling angle measuring device and a heeling angle measuring method for a ship inclination test. The heeling angle measuring device for the ship inclination test comprises a supporting bracket, a reduction gear set, a pendulum bob, a pointer and a side magnet strip, the supporting bracket comprises a bottom plate and a side plate which is perpendicular to the bottom plate and fixed to the bottom plate, a shell of the reduction gear set is fixed to the rear end face of the side plate, and the pendulum bob is fixedly connected to the lower portion of an output shaft of the reduction gear set. An input shaft of the reduction gear set penetrates through a through hole of the side plate and then is fixedly connected with a pointer on one side of the front end face of the side plate, a dial is arranged on the front end face of the side plate to observe the rotation angle of the pointer, a side face magnet strip is fixed to the front end face of the side plate, the supporting support is made of non-metal materials, and the side face magnet strip is used for making the pendulum bob swing still. According to the heeling angle measuring device for the ship inclination test, the accuracy of ship heeling angle measurement can be improved, and meanwhile the size of the heeling angle measuring device is small.