46results about How to "Avoid measuring" patented technology

The invention discloses a rotor blade dynamic field rapid reconstruction method based on a deep neural network model, and the method comprises the steps: firstly collecting a BTT signal containing blade vibration information, then designing a deep neural network model, and training the deep neural network model through a training data set; processing the actually measured BTT signal by using the trained deep neural network model, and reconstructing a blade vibration displacement signal; performing spectral analysis on the reconstructed blade vibration displacement signal, and identifying vibration frequency, amplitude and phase parameters; then establishing a finite element model of the blade, and determining the inherent frequency and modal shape of the blade through modal analysis; and finally, quickly calculating a displacement field, a strain field and a stress field of the blade in a vibration state based on a modal superposition theory by utilizing the identified vibration parameters and modal analysis results. According to the invention, the vibration displacement and stress condition of the blade can be known in real time, so that real-time decision is supported, and the safety, reliability and durability of a rotating machine are improved.

The invention discloses a method for measuring Joule-Thomson coefficients of hydrocarbon fuel and cracking products thereof. The method comprises the following steps: pumping a target substance into an experimental tube, and heating from room temperature to target temperature; monitoring the temperature of the target substance at the inlet and outlet of the experiment tube, the wall surface temperature distribution of the experiment tube, the system pressure at two ends of the experiment tube, and current and voltage applied to two ends of the experiment tube in real time; according to the parameters monitored in real time, a function H (T) of the constant-pressure enthalpy value of the target substance changing along with the temperature is obtained on line based on a calorimetric model; when cooling to room temperature, changing the pressure and continuing the steps to obtain H (T) under different pressures; and based on H (T) under different pressures, establishing a Joule-Thomson coefficient calculation model containing a pressure-temperature-constant pressure enthalpy value function relationship, and calculating the change condition of the Joule-Thomson coefficient of the target substance along with the temperature. The invention further discloses a corresponding measuring device. According to the method and the device, accurate measurement of the Joule-Thomson coefficient is realized.

The utility model discloses a mine accumulated water depth measuring device, which belongs to the technical field of mine accumulated water measurement and comprises a floating plate, supporting plates are symmetrically and fixedly connected to the side surface of the floating plate, a winding roller is arranged on the inner side of each supporting plate, a rope is fixedly connected to the side surface of each winding roller, and a through hole is formed in the center of the floating plate. One end of the rope penetrates through the through hole to be fixedly connected with a balancing weight, the upper surface of the floating plate is rotationally connected with a gear ring, the inner side surface of the gear ring is fixedly connected with an electric telescopic rod through a side plate, and one end of the electric telescopic rod is fixedly connected with a marking pen. The situation that mine accumulated water is measured manually through a lifting rope and a balancing weight is avoided, the situation that the measurement accuracy of the mine accumulated water depth is reduced due to rough measurement is prevented, the measurement device can enter a mine for measurement, the limitation of mine accumulated water measurement is reduced, large-area multi-point measurement can be achieved, and the measurement efficiency is improved. People can further know the depth of the accumulated water in the mine, and the practicability of the measuring device is improved.

The invention provides a ship attitude estimation method, device and equipment, a storage medium and a program product, which are applied to a ship equipped with an inertial measurement unit, and the method comprises the following steps: establishing a navigation coordinate system based on an environment where the ship is located, and establishing a ship body coordinate system based on the inertial measurement unit; establishing a model equation based on the state variables; establishing a measurement equation based on the state variable and the model equation; establishing a state-space equation based on the model equation and the measurement equation; determining measurement data of the inertial measurement unit, and determining an optimal value of a state variable based on the state-space equation and the measurement data; and determining the attitude angle of the ship based on the optimal value of the quaternion in the state variable so as to determine the attitude of the ship. According to the method, the model equation is established through the state variables, the measurement value is preset for the heading of the ship, and the measurement equation and the state space equation of the ship are established, so that the attitude angle of the ship is determined, the attitude of the ship in the movement process can be accurately measured, and the precision of ship attitude estimation is improved.

The invention discloses a magnetizing inrush current suppression method and system during closing of a distribution transformer. The method comprises the following steps: acquiring three-phase voltage and current waveform data before and after tripping of a primary side circuit breaker of the distribution transformer; measuring and calculating the residual magnetism of the primary side winding according to the voltage and current data, and determining a closing phase sequence by the minimum residual magnetism in order to avoid dispersive errors of the circuit breaker; determining the specific closing time of the transformer according to the residual magnetism information; only the voltage and current waveform data before and after the primary side circuit breaker is switched on need to be collected, the residual magnetism is measured and calculated, and the switching-on phase sequence and the switching-on time of the circuit breaker are determined, so that the magnetizing inrush current during switching-on of the distribution transformer is inhibited. According to the method, the actual condition of the power distribution network is fully considered, parameters are easy to obtain, the operation is completed within a period after the inherent closing time of the circuit breaker, the speed is high, the principle is deeper, the closing phase sequence and strategy are clear, operability is high, and the method is suitable for various scenes of the power distribution network.

The invention discloses a tablet measuring device, and relates to the technical field of tablet detection. The device comprises a detection machine, the detection machine comprises a rack and a material receiving box, the material receiving box is fixedly installed on the surface of the rack, a feeding rotary table is fixedly installed on the rear side of the rack, a swing feeding bin is arranged at the top of the rack, and a material conveying table is fixedly installed at the top of the rack. The screening bin is driven by the second driving part to swing above the base, tablets entering the screening bin are shaken and swung, the tablets move in a zigzag shape from the rear end to the front end in the screening bin in the moving process, and the principle similar to a vibration screen is adopted, so that when all the tablets are discharged one by one from the front end of the screening bin, the tablets are discharged one by one; by means of guiding of the calibration track, the tablets can accurately and stably fall into the holes in the detection rotary disc, the discharging accuracy is guaranteed, and the situation that the tablets collide with the inner wall of the material conveying table all around when sliding in the material conveying table is avoided.

The utility model provides a temperature and pressure gatherer, top cover subassembly, monomer battery, battery and electric device wherein temperature and pressure gatherer includes package seat, gland, circuit board, elastic membrane, temperature and pressure sensor subassembly, the package seat is equipped with the fixed connection portion, the interior is equipped with the accommodation channel that includes first channel and second channel, the section size of the first channel is larger than that of the second channel, the gland covers the open end of the first channel, a fixedly-connected part is arranged on the gland, the circuit board is far away from the fixedly-connected part and the fixedly-connected part, the circumferential edge of the circuit board is connected to the bottom of the first channel in a sealed mode, and the elastic membrane is used for conducting pressure and temperature. The elastic membrane is arranged at the opening end of the second channel in a sealed mode, the second channel is filled with silicone oil, the temperature and pressure sensor assembly is arranged on the circuit board and located in the silicone oil, and the temperature and pressure sensor assembly comprises a temperature sensor and a pressure sensor. When the temperature and pressure collector is fixed on the top cover of the battery, heat generated by welding can be prevented from being directly conducted to the circuit board.

The invention provides ground stress testing equipment and method based on distributed double-sided compression hydraulic pillow monitoring. The equipment comprises double-sided compression hydraulic pillows and drill holes buried in the side wall or the tunnel face of a tunnel, and at least three double-sided compression hydraulic pillows with different installation angles are buried in each drill hole; the double-face pressed hydraulic pillow comprises a main body, a pressure bearing plate, pressure bearing liquid, a pressure conversion device connector, a one-way valve and a sealing nut connecting screw. The one-way valve and the sealing nut are used for injecting pressure-bearing liquid into the main body of the double-sided pressed hydraulic pillow; the pressure conversion device is mounted at the pressure conversion device connector and is used for sensing the pressure of the pressure-bearing liquid; the cable is in communication connection with the pressure conversion device and is used for transmitting the sensed pressure data to a data acquisition instrument at the orifice; and the data processing device is used for calculating crustal stress of different dimensions according to the pressure data. The device can solve the problem that the testing result is insufficient in representativeness due to the fact that the grouting quality is influenced by the combination of the one-way hydraulic pillows.

The utility model relates to the technical field of ultrasonic detection, and provides a calibration device of an ultrasonic detection device and a detection system. The calibration device of the ultrasonic detection device comprises a trolley, a calibration frame and a calibration plate, and rollers are arranged at the bottom of the trolley; the calibration frame is arranged on the trolley; the calibration plate is arranged on the calibration frame, and the calibration plate is used for simulating materials; wherein the ultrasonic detection device is used for detecting the height of the calibration plate, and the height is compared with the actually measured height, so that the detection precision of the ultrasonic detection device is calibrated. According to the calibration device of the ultrasonic detection device, the trolley, the calibration frame and the calibration plate are arranged, the actually measured height of the calibration plate is compared with an ultrasonic detection result, and then the detection result of the ultrasonic detection device is calibrated, so that the measurement of the height of each material is avoided, and the labor intensity of operators is reduced.

The equidistant cutting device for the photovoltaic support comprises a supporting table, a mounting frame, a cutting mechanism, a supporting assembly and a progressive mechanism, and the mounting frame is fixedly connected with the supporting table; the cutting mechanism is mounted at the top of the mounting frame; the supporting assembly is installed at the bottom of one side of the supporting table. The progressive mechanism is installed at the top end of the supporting assembly and comprises a fixing table, a transmission assembly, a swing assembly and a progressive assembly, the transmission assembly is installed at the top of the fixing table, the swing assembly is fixedly connected with the supporting assembly, and the transmission assembly is in transmission connection with the swing assembly; the progressive assembly is hinged to the swing assembly and comprises a connecting rod, a progressive frame, an abutting plate, a rolling wheel and a limiting rod. Therefore, frequent measurement of the cutting length of the support is avoided, so that the cutting time is shortened, and the cutting efficiency is improved.

The utility model discloses a differential housing boundary dimension automatic measuring device comprising a work bench, a support positioning assembly used for supporting a differential housing is arranged on the work bench, one end of the support positioning assembly is provided with an active driving assembly, and the other end of the support positioning assembly is provided with an auxiliary support assembly; the active driving assembly and the auxiliary supporting assembly are matched with the two ends of the differential mechanism shell correspondingly so as to drive the differential mechanism shell to rotate, and a measuring assembly is arranged on the side face of the supporting and positioning assembly and used for measuring the differential mechanism shell; through the above mode, the appearance size of the differential housing can be rapidly detected at any time on a production line, and the production efficiency and the convenience are improved.

The utility model relates to the technical field of fruit measurement, concretely refers to a fruit tree fruit size inspection tool, including the bottom plate, fixed with a stand on the bottom plate upside, simultaneously integrative top hat has in the top of stand, the grading plate is by grading ring and the convex handle integrative in the side of grading ring edge group, the convex handle sliding of grading plate is equipped with in the stand, and the height direction of multiple sets of grading plate stand is arranged from big to small downwards according to size, the upper and lower side of every group convex handle is embedded with magnet block, and the bottom wall of top hat is also embedded with magnet block, when multiple sets of grading plate are in turn attracted and the top side of a group grading plate is attracted with top hat, multiple sets of grading plate are in the top of stand, and multiple sets of grading plate center are located on the same straight line at this time, and are mutually matched and enclose a conical cavity, after fruit is put, will suppress and can not pass the grading plate under the removal and the grading plate of upper side separation, automatically realize the inspection of grading plate to fruit size.

The utility model discloses a high-precision underground water level electrical measurement device, which belongs to the field of borehole underground water level measurement, and comprises a universal meter positioned on the ground, the universal meter is connected with an anti-error measurement device through a coated wire, and the anti-error measurement device is positioned in a borehole; the false detection prevention device comprises a protection cylinder, a water insulation plug is arranged at the top of the protection cylinder, a connector used for being connected with a covered wire is arranged at the top of the water insulation plug, stand columns are symmetrically arranged on the lower end face of the water insulation plug, and the covered wire is wound around the stand columns. A water inlet is formed in the bottom of the protective cylinder, and an assembling connector is arranged below the water inlet. According to the utility model, a single line is changed into double lines to effectively prevent the measurement lines from being adsorbed on the hole wall, so that the measurement is lighter and false water level measurement is avoided; a counterweight joint is added to be suitable for measuring water levels of different depths.

The utility model relates to the technical field of quantitative powder supply, and provides a quantitative powder supply structure of an aluminum profile powder spraying device, which comprises a support frame, a blanking hopper, a valve, a sliding frame, a sliding plate, a capacity cylinder, a positioning component and a scraping component, the blanking hopper is fixedly arranged on the support frame, the valve is fixedly arranged at the bottom end of the blanking hopper, the sliding frame is fixedly arranged on the support frame, and the sliding plate is fixedly arranged on the sliding frame. A sliding groove is formed in the sliding frame, the sliding frame is arranged below the discharging hopper, the sliding plate is installed on the sliding groove in a sliding mode, the capacity cylinder is fixedly installed on the sliding plate in a penetrating mode, and a limiting hole is formed in the side face of the capacity cylinder. By means of the technical scheme, the problems that in the prior art, after powder falls on weighing equipment and reaches a quantitative value, in the process that the adjusting plate is manually pushed to close the funnel, it is difficult to manually push the adjusting plate to the side end of the funnel immediately, and some powder possibly falls on the weighing equipment, so that too much powder falls, and the weighing efficiency is affected are solved. And the problem of inaccurate quantitative powder supply is solved.

The present invention relates to a high temperature resistant and vibration resistant vortex flowmeter applied in the field of flow detection equipment, comprising a hollow sealing ring; the hollow sealing ring is a ring body with a cavity inside, and a plurality of heating auxiliary sealing components and cooling auxiliary sealing components are installed in the hollow sealing ring and are evenly and staggeredly distributed along the hollow sealing ring; the expansion amplitude of the heating auxiliary sealing component when heating up and the stretching amplitude of the cooling auxiliary sealing component when cooling down are both greater than the deformation amplitude of the hollow sealing ring affected by temperature, and the above-mentioned hollow sealing ring, heating auxiliary sealing component and cooling auxiliary sealing component and other structures are adopted to achieve interference fit between the two ends and the inner and outer sides of the hollow sealing ring with the inner wall of the flange structure regardless of high temperature environment or low temperature environment, thereby ensuring that the hollow sealing ring can ensure good sealing effect during or when the temperature changes, avoiding the measurement pipeline and the external transmission pipeline.

The invention relates to the technical field of straightness and flatness measurement, and discloses a flatness and straightness measuring device and a using method thereof.The measuring device comprises an instrument base, a rotatable lever plate is arranged in the instrument base, a bearing is arranged in the lever plate, a middle shaft is arranged in the bearing in a penetrating mode, and the middle shaft is connected with the instrument base. A limiting column is arranged at the end, extending below the workpiece, of the lever plate. The two top face columns are arranged in the top end of the limiting column in a penetrating mode and connected with the column pushing piece, once the limiting column reaches the edge chamfering position of a workpiece in the moving process, the limiting column close to the edge can stretch out instantly, the stretching-out action can trigger a signal, a warning lamp is controlled to be turned on, and therefore the workpiece is prevented from being damaged. According to the technical scheme, the warning lamp is arranged to remind a worker to stop moving the measuring equipment, errors caused by chamfering can be prevented, the measuring accuracy is improved, the worker can respond rapidly through immediate reminding of the warning lamp, measurement at a wrong position is avoided, and time and labor are saved.

The present invention discloses an electronic intelligent geological compass, including a measuring host and a measuring plate; the measuring plate is attached to the lower surface of the measuring host and is integrated through a connecting shaft hinge arranged at any angular position; the measuring host is provided with a tendency indicating mechanism and a tendency and inclination angle measuring unit powered by a built-in power supply. The electronic intelligent geological compass prepared by the present invention has an ingenious structure, comprehensive functions, simple operation, and convenient carrying. It can solve the measurement of narrow and small attitude surfaces and difficult measurement surfaces, and can avoid the leveling link during measurement, quickly complete the measurement of inclination and inclination angles, and greatly improve the efficiency and accuracy of geological measurement; combined with the mobile phone applet developed to match this product, it can quickly and accurately measure the attitude of rock masses.

This utility model discloses a prefabricated building wall structure, which includes a T-shaped strip plate located between two wall panel bodies. The wall panel body has a fitting groove adapted to the T-shaped strip plate on the side closest to the T-shaped strip plate. Two hooks are embedded in one side of the cavity of the fitting groove. The T-shaped strip plate has two cavities inside, and two symmetrical pins are fixedly connected to the cavities. This utility model installs the two wall panel bodies by bringing them close to the T-shaped strip plate, causing the fitting groove to fit against the surface of the T-shaped strip plate. Then, by rotating a threaded rod, a rectangular frame descends, and the sliding pin slides within the rectangular frame, causing the hook to rotate. The hooks of the hooks engage with the cavities of the hooks, thus installing the two wall panels. This achieves the goal of conveniently connecting adjacent wall panels using concealed hooks, avoiding calculations and measurements, and improving installation efficiency.

The utility model discloses a side punching and front face hole flanging die which comprises a lower die body, an upper die body and an auxiliary assembly, the upper die body is arranged relative to the lower die body and can slide close to or away from the lower die body, the auxiliary assembly comprises a power supply part, an alarm part and an electric contact part, the power supply part is connected to the upper die body, the alarm part is connected to the upper die body, and the electric contact part is connected to the lower die body. The electric contact piece is arranged opposite to the power supply piece and is connected to the lower die body, and when the power supply piece abuts against the alarm piece, the power supply piece, the alarm piece and the electric contact piece can form a closed loop to trigger the alarm piece to give an alarm. According to the utility model, the problems that the operation is complicated and the deviation of secondary processing is easily caused because the workpiece is required to be taken down after being processed and whether the punching or hole flanging processing of the workpiece is qualified is judged through measurement or observation can be solved.

A method of evaluating the suitability of a mobile device (112) for performing an analytical measurement based on a color formation reaction, a method of calibrating a mobile device (112) for performing an analytical measurement based on a color formation reaction and a method of performing an analytical measurement based on a color formation reaction in an optical test strip (120) by using a mobile device (112) are disclosed. Further disclosed are a suitability computer program, a calibration computer program and a measurement computer program as well as a mobile device (112) and a kit(110). The method of evaluating the suitability of a mobile device (112) for performing an analytical measurement based on a color formation reaction comprises: a) evaluating the capability of the mobile device (112) to have one or more relevant settings of the mobile device (112) controlled by a user's software running on the mobile device (112), the relevant settings pertaining to image raw data processing steps to be carried out by the mobile device (112), wherein the relevant settings include at least one of a color space transformation (132)and a tone mapping transformation (136); b) if the evaluation in step a) indicates that the mobile device (112) is capable of having the one or more relevant settings controlled by the user's software, providing at least one item of control information, the at least one item of control information indicating that the mobile device (112) is suitable for performing the analytical measurement; and c) if the evaluation in step a) indicates that the mobile device (112) is not capable of having the one or more relevant settings controlled by the user's software, providing at least one item of control information, the at least one item of control information indicating that the mobile device (112) is unsuitable for performing the analytical measurement.

This application discloses an ultrasound image processing method, apparatus, electronic device, and storage medium. The method includes: acquiring multiple types of data signals during ultrasound imaging; wherein the multiple types of data signals include at least two of the following: ultrasound echo signal after beamforming, initial wave image before digital scan conversion, and ultrasound image after digital scan conversion; performing no-load detection on each of the multiple types of data signals to obtain corresponding no-load detection results; and combining multiple no-load detection results to determine the final no-load detection result of the ultrasound image. This application performs multiple no-load detections on multiple types of data signals in multiple stages of ultrasound imaging, and combines the results of multiple no-load detections to obtain the final no-load detection result of the ultrasound image, improving the accuracy of no-load image identification, avoiding subsequent functions from making incorrect diagnoses or measurements of the no-load image, and ensuring the reliability and accuracy of ultrasound diagnostic and measurement functions.

A long axis measuring device belongs to the technical field of measuring equipment, including base, the base is equipped with guide groove, the guide groove is equipped with guide channel along the guide groove axial direction, the guide channel is equipped with clamping piece, the upper part of the clamping piece is equipped with locking screw that can fix the long axis to be measured, the lower part of the clamping piece is equipped with trajectory pen that extends downward, the bottom of the trajectory pen is fixed in the clamping piece at one end of the long axis to be measured and the long axis to be measured contacts with the base when the top of the trajectory pen is pressed downward, the side of the clamping piece is also equipped with driving assembly that can drive the clamping piece to move along the guide channel. Through the mutual cooperation of the base, the guide groove and the driving assembly, when the long axis to be measured is placed, the trajectory pen contacts with the base under the pressure of the long axis to be measured and can draw marks, the accurate length of the long axis to be measured is indirectly obtained by measuring the trajectory distance, and the measurement and reading errors existing in directly measuring the long axis to be measured are avoided.

Provided are a beam failure recovery method, a communication device and a computer readable storage medium, the method comprising: executing a joint BFR for reference frequency information and target frequency information, the target frequency information and the reference frequency information belonging to the same frequency information set, and the target frequency information and the reference frequency information belonging to the same frequency information set; the target frequency information and the reference frequency information have a first association relationship; wherein the joint BFR for the reference frequency information and the target frequency information comprises: a beam failure event of the target frequency information is determined according to the beam failure event of the reference frequency information, and / or a target new beam is determined according to a reference new beam, the reference new beam is a new beam of the reference frequency information, and the target new beam is a new beam of the reference frequency information. The target new beam is a new beam of the target frequency information. The invention provides a beam failure recovery method suitable for a large-bandwidth system.

The utility model provides a hole digging auxiliary device for plant cultivation, which relates to the technical field of plant cultivation and comprises a pushing support, a supporting table is arranged on the front side of the pushing support, a punching assembly is arranged at the top of the supporting table and comprises a punching machine and a spiral drill bit, a movable plate is connected to the back side of the supporting table in a bolted mode, and the movable plate is arranged on the back side of the supporting table. A sliding rail and a lead screw are arranged in a groove in the front face of the pushing support, a distance measuring instrument is arranged on one side of the lead screw, the surface of the lead screw is sleeved with a magnetic attraction sleeve plate, and a pedal is connected to the back face of the pushing support. According to the planting hole digging device, the hole digging depth of a spiral drill bit in the punching assembly can be precisely controlled, personnel are assisted to dig the required depth at a time, repeated adjustment and measurement are avoided, the planting hole digging efficiency is improved, and a range finder can directly measure the descending depth of the spiral drill bit so that the personnel can conveniently and visually check the descending depth.

The invention relates to a non-dissipative balancing management system for a space lithium-ion battery, belonging to the technical field of lithium-ion battery management; the system comprises two non-dissipative balancing management modules and a lithium-ion battery pack; the two non-dissipative balancing management modules are respectively connected to the lithium-ion battery pack; the two non-dissipative balancing management modules use a dual-machine cold standby mode to achieve balancing control of the lithium-ion battery pack; the non-dissipative balancing management module comprises a central control module, a first balancing module and a second balancing module; the first balancing module comprises a low 3-way group voltage conditioning circuit, a 1-11-way balancing control circuit and a frequency tracking point circuit; the second balancing module comprises a high 3-way group voltage conditioning circuit and a 12-22-way balancing control circuit; the lithium-ion battery pack comprises 22 battery cells connected in series; the two battery cells are respectively connected in parallel to the 1-22-way balancing control circuit; the invention solves the problem of measuring the battery cell voltage under a high common mode voltage, and can also achieve energy transfer between lithium-ion battery cells.

The utility model relates to the technical field of push-pull linkage doors, in particular to a linear anti-swing anti-theft anti-bounce upper wheel set which comprises a support body, an anti-bounce assembly is arranged on one side in the support body, and an anti-swing assembly is arranged at the top of the support body. The anti-bounce assembly comprises a movable pull head, the movable pull head is movably connected into the support body, a pull head vertical plate is fixedly connected to one side of the top of the movable pull head and extends out of the top of the support body, a first inclined groove is formed in the pull head vertical plate, and a first sliding groove is formed in the pull head vertical plate. According to the linear anti-swing, anti-theft and anti-bounce upper wheel set, after the upper wheel set is installed through an anti-bounce assembly and an anti-swing assembly, the upper wheel set rotates by rotating a third bolt and a second bolt, so that the positions of a bulletproof wheel and an anti-swing wheel are adjusted, and the situation that door and window frames of different sizes are measured and customized before the bulletproof wheel and the anti-swing wheel are installed is avoided; and the universality and the installation convenience of the device are improved.

A lightning protection detection device for a whole wind driven generator comprises a telescopic supporting rod, an adsorption plate, a wiring handle and a supporting device, the telescopic supporting rod is of a telescopic structure and can fix the telescopic length, the telescopic supporting rod is fixed to a bottom guardrail of the wind driven generator through a supporting frame, one end of the telescopic supporting rod is provided with the adsorption plate, and the other end of the telescopic supporting rod is provided with the wiring handle. A wiring handle is arranged at the other end of the telescopic supporting rod; a camera is arranged at one end, close to the adsorption plate, of the telescopic supporting rod; according to the utility model, the magnetic metal contact, the telescopic rod, the fixing frame, the measuring instrument, the auxiliary camera and other mechanisms are ingeniously assembled, so that the purpose of stable connection between the foundation and the blade tip is achieved, and the grounding resistance of the whole machine is measured; people can be prevented from climbing to the top of the fan for measurement, measurement time is reduced, and detection accuracy is improved.

The present invention provides a pre-buried ball injection device and method for measuring the gas permeability coefficient and diffusion coefficient of soil, which is composed of a ball injection device and a gas supply device. The ball injection device includes a nylon net, a spherical bracket, crushed stone, a diameter expansion interface, a gas injection pipe, a gas extraction interface and a gas extraction pipe, and the gas supply device includes an inert gas cylinder, a pressure regulating valve, a flow regulating valve, a U-shaped pressure measuring tube, a flow meter and a gas transmission pipe. The present invention is a single-point measurement and does not require any form factor. It only needs to measure the gas pressure value, gas concentration value and corresponding gas flow value at a point of target depth in the unsaturated soil layer, and the gas diffusion coefficient and permeability coefficient of the unsaturated soil can be obtained by simple manual calculation. In addition, the present invention has no limitation on the measurement depth and is small in size (the diameter of the ball injection device is about 2 cm), and has good applicability in indoor tests such as soil columns and model tanks.

The invention relates to the technical field of agricultural measurement, and provides a method, device and equipment for calculating umami amino acids in chilies and a storage medium, and the method comprises the following steps: obtaining umami amino acid factors corresponding to the chilies; obtaining a umami amino acid calculation model corresponding to the pepper according to the umami amino acid factor; determining the specific amino acid content corresponding to the to-be-detected pepper, and inputting the specific amino acid content into the delicate flavor amino acid calculation model to obtain the delicate flavor amino acid content corresponding to the to-be-detected pepper; after the calculation model is determined through the umami amino acid factor, the content of specific amino acid corresponding to the umami amino acid factor in the to-be-detected hot pepper is obtained and input into the calculation model, and the umami amino acid content corresponding to the to-be-detected hot pepper can be calculated through the calculation model. Therefore, the content of the umami amino acid can be obtained through calculation by only measuring one umami amino acid factor, so that a tedious measurement process is avoided, and the measurement cost can be effectively reduced.

The present invention provides a synchronization method, device and terminal. The method is applied to a first terminal, including receiving basic synchronization messages sent by multiple second terminals; determining a target synchronization source according to the synchronization level in the basic synchronization message; sending a synchronization request message to the target synchronization source in the nth cycle; receiving a synchronization response message sent by the target synchronization source in the n+1th cycle, the synchronization response message including the system time, the identifier of the target synchronization source, the first timing offset measurement value of the target synchronization source relative to the reference time in the n+1th cycle, the difference between the second timing offset measurement value and the first timing adjustment amount, and the identifier of the first terminal; obtaining the third timing offset measurement value of the first terminal relative to the target synchronization source in the n+1th cycle according to the synchronization response message; and synchronizing according to the difference, the first timing offset measurement value and the second timing offset measurement value. The present invention can avoid timing offset measurements of irrelevant users and reduce data redundancy in synchronization messages.