39 results about "Tensometer" patented technology

The utility model provides a device for automatically detecting the width of an aluminum alloy plate strip, which comprises a control module, an F-shaped scale used for detecting the width, and a horizontal platform used for placing a plate strip to be detected, the scale is provided with a fixing piece which enables the horizontal stress state of the plate strip in the scale direction to meet the measurement requirement, and an automatic reading device; the fixing piece is provided with a tensiometer used for measuring the horizontal stress of the plate strip in the scale direction, and when the horizontal stress measured by the tensiometer meets the measurement requirement, the automatic reading device reads and recognizes the scale corresponding to the position of the fixing piece so as to obtain the width of the current measured plate strip; the automatic width detection device is simple in structure, reasonable in design, convenient to use, high in practicability, easy to implement, beneficial to rapid and effective automatic width detection of the aluminum alloy plate strip, capable of reducing personal errors, free of safety risks, capable of completely guaranteeing width measurement and easy to popularize in industrial width measurement.

The application provides a device and method for automatically detecting the width of an aluminum alloy plate strip, which comprises a control module, an F-shaped scale for detecting the width, a horizontal platform for placing the plate strip to be detected, the platform being placed below the scale area, a fixing member being arranged at the scale to make the horizontal force of the plate strip in the scale direction meet the measurement requirement, and an automatic reading device; a tension meter is arranged at the fixing member to measure the horizontal force of the plate strip in the scale direction, when the horizontal force measured by the tension meter meets the measurement requirement, the automatic reading device reads and identifies the scale mark corresponding to the position of the fixing member to obtain the width of the plate strip to be detected; the application has the advantages of simple structure, reasonable design, convenient use, strong practicability, easy implementation, fast and effective automatic detection of the width of the aluminum alloy plate strip, reduced human error, no safety risk, guaranteed width measurement, and easy popularization in industrial width measurement.

This utility model discloses a device for measuring changes in matrix suction gradient, including a soil tensiometer body; a clay head is fixedly installed at the bottom of the soil tensiometer body, an electronic tensiometer is fixedly installed at the end of the soil tensiometer body away from the clay head, and a water inlet pipe is fixedly installed on one side of the soil tensiometer body, communicating with the soil tensiometer body, with a threaded cap threaded onto the water inlet pipe; this utility model, by fitting two semi-circular chucks onto the soil tensiometer body and fixing the two semi-circular chucks with pins, places the end of the support rod away from the semi-circular chucks on the ground, and inserts the rod into the support rod insertion hole to limit and fix the fixing plate, the cooperation of the support rod and the semi-circular chucks can provide support for the soil tensiometer body, preventing it from tilting due to collisions with external objects, making the device safer when continuously monitoring outdoors, and allowing the clay head at the bottom of the soil tensiometer body to maintain stable contact with the soil.

The invention discloses a concrete stress monitoring method based on a wet-force coupling effect and a capillary water theory, and the method comprises the steps: measuring the capillary pressure change of pores in concrete through a tensiometer, and calculating the concrete stress according to the wet-force coupling effect and the capillary water theory. The invention relates to the technical field of concrete materials. According to the concrete stress monitoring method based on the wet-force coupling effect and the capillary water theory, real-time monitoring of a structure can be achieved, the cost is low, compared with common strain measurement, the novel stress monitoring method is provided, and the method is based on an early-age concrete wet-force coupling model and the capillary water theory and has the advantages of being high in practicability and easy to popularize. The stress of the concrete structure is monitored by measuring the capillary pressure change of pores in the concrete, and the real-time safety of the structure is ensured.

The invention relates to the technical field of force measuring devices, in particular to a tensiometer. The tensiometer comprises a machine shell and a meter head installed on the machine shell, the machine shell is provided with a fixed pressing body and a movable pressing body which are used for being matched with a tested tensioned object, a transmission structure is arranged between the movable pressing body and the meter head so as to transmit force to the meter head when the movable pressing body moves, and the transmission structure comprises a transmission shaft extending in the moving direction of the movable pressing body. The transmission shaft comprises a transmission main body and an adjusting shaft, the movable pressing body is fixed with the adjusting shaft, the transmission main body is provided with a force transmission part for transmitting force to the meter head, and the adjusting shaft is adjustably connected to the transmission main body in the moving direction of the movable pressing body so as to change the position of the movable pressing body relative to the fixed pressing body by changing the position of the adjusting shaft. The same tensiometer can be applied to measurement of tensioned objects with different diameters or thicknesses, and the measurement cost can be reduced.

The utility model discloses a tensiometer calibrating device, which comprises a wire rod, a power assembly, and a swing arm and a transmission arm which are arranged on the same rotating shaft, two ends of the wire rod are respectively a fixed end and a movable end, and the movable end of the wire rod is connected to the swing arm; the power assembly drives the swing arm to swing through the transmission arm and the rotating shaft so as to stretch the wire, and the transmission arm, the rotating shaft and the swing arm are combined into a labor-saving lever. A force sensor is arranged at one end of the wire rod and correspondingly detects the tension of the stretched wire rod. The movable end of the wire rod is hinged to the swing arm, and the fixed end of the wire rod is hinged to the fixed point column. When the swing arm swings, the movable end and the fixed end of the wire rod can adjust the angle in a self-adaptive mode. According to the tension meter calibrating device, the power of the power mechanism required by the tension meter calibrating device can be reduced.

The invention discloses a moisture characteristic curve measuring device, which belongs to the technical field of soil physics, and is technically characterized by comprising a main body assembly, a wiping assembly, a beating assembly, a control assembly, a connecting assembly and a tensiometer assembly. According to the device, when cold boiled water is injected into a water injection pipe, the water injection pipe can be clamped through a connecting assembly, then a tensiometer assembly can be deflected through a control assembly, then the cold boiled water can be injected into the water injection pipe, and after injection, the tensiometer assembly can be rotated, so that the tensiometer assembly can stand; after standing for a period of time, water dripped from the surface of the pottery clay head can be wiped through the wiping assembly, and then the surface of the water injection pipe can be beaten through the beating assembly, so that bubbles in the water injection pipe can be discharged, the interior of the tensiometer assembly can be filled with cold boiled water, and operation is convenient in the water injection period.

A valve assembly includes a valve body having an inlet end and an outlet end and a fluid flow path extending from the inlet end to the outlet end. The assembly also includes: a moveable valve member located in the fluid flow path intermediate the inlet end and the outlet end, the moveable valve member being movable relative to the valve body between an open position to allow fluid flow from the inlet end to the outlet end along the fluid flow path through the open moveable valve member and a closed position to prevent fluid flow from the inlet end to the outlet end along the fluid flow path; and one or more fluid level tensometer sensors mounted to the moveable valve member and configured to deform to generate an electrical signal in response to a predetermined mass or pressure of fluid acting on the one or more sensors.

The invention provides a simple evaporation system for rapidly measuring hydraulic parameters of unsaturated soil. The simple evaporation system comprises a weighing sensor, a sample preparation cylinder outer cylinder, a soil sample, a chassis, a first tensiometer, a second tensiometer, a third tensiometer, a wireless transmitting collector, a power transmitting module, a power receiving module, a transparent organic glass box and an evaporation control system. According to the simple evaporation system for rapidly measuring the hydraulic parameters of the unsaturated soil, the initial saturation state of the bottom of a sample can be accurately judged according to the measured value of the bottom tensiometer, and the measurement and calculation errors are reduced by comparing the measured values of the bottom plate tensiometer with the measured values of the other two height tensiometers; a temperature and humidity control system is adopted to accurately and actively control the evaporation rate of the sample surface; the soil sample and the sample preparation cylinder are connected by adopting a special glue solution, and the soil sample can be evaporated in a thermal environment and cannot be separated from the sample preparation cylinder under the action of strong cementation, so that the overall structure uniformity of the soil sample in the whole test process is maintained.

The invention discloses an ultra-large-diameter expansion bend underwater measurement accurate correction method, and belongs to the technical field of submarine pipeline expansion bend underwater installation. Measuring the left and right angle readings of the riser flange and the subsea pipeline flange, the readings of the tensiometer and the linear distance between the riser flange and the subsea pipeline flange by a measuring device; the two water pressure altimeters are arranged in the three-point directions of the vertical pipe flange and the subsea pipe flange respectively, and the average height difference, namely the absolute height difference of the two, is read; the underwater gyroscopes are sequentially arranged right above the underwater gyroscopes and the underwater gyroscopes, and absolute heading readings are collected; the linear distance between horizontal projections of the two flanges can be deduced according to the length of the tensioning steel wire and the absolute height difference, then the absolute position relation of the two flanges on the horizontal projections can be obtained according to the absolute heading and left-right angle readings of the horizontal projections of the two flanges, and accurate correction of the left-right angle readings of the expansion bend underwater measuring device is achieved. According to the method, the underwater measurement data of the ultra-large expansion bend are extremely accurate, the butt joint difficulty of the expansion bend and the subsea pipeline is greatly reduced, and the butt joint working efficiency is improved.

1. Name of the product in this design: Digital cable tension meter. 2. Purpose of this design: For measuring the tension of steel cables. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses a tension prediction method, device and equipment for a logging cable, and relates to the technical field of logging, and the method comprises the steps: obtaining the calculation information of a to-be-logged well; calculating the upper tension of the instrument segment corresponding to the current to-be-predicted depth by using the calculation information; if the instrument section is not the wellhead vertical well section, taking the upper tension of the current well section as the lower tension of the previous well section, and calculating the tension value of the wellhead tensiometer corresponding to the current to-be-predicted depth by using calculation information according to the upper tension of the instrument section; by acquiring the calculation information of the to-be-measured well, the tension value at the wellhead tensiometer can be predicted according to the actual conditions of the to-be-measured well, the logging instrument and the cable, and the accuracy of tension prediction is improved; and a well section to be subjected to well logging is divided into a plurality of subsection well sections, upward calculation is conducted in sequence with the subsection well section where the prediction depth is located as a starting point, the tension value of a wellhead tensiometer is obtained, and automatic prediction of the tension of the well logging cable is achieved.

The utility model discloses a soil moisture characteristic curve measuring device which comprises a container, a tensiometer system, a sensing system and a weighing device, the container is of a cylindrical structure and is used for being filled with a soil sample, the tensiometer system comprises a clay head and a scale assembly, one end of the clay head is connected with the container, and the other end of the clay head is connected with the scale assembly. The sensing system is partially arranged in the soil sample, the sensing system is used for acquiring volumetric water content data of the soil sample, the weighing equipment is positioned at the bottom of the container, and a tray is arranged between the weighing equipment and the container. In the application, the tensiometer system, the sensing system and the weighing equipment are combined, so that the measurement error and the data docking difficulty can be reduced, an operator performs a filling and compacting process indoors, the collected soil sample is restored to a state approximate to the original volume weight, the representativeness and reliability of a test result are improved, and the measurement accuracy is improved. And meanwhile, automatic recording and wireless data transmission means are adopted, so that continuous, accurate and long-period observation of data is realized.

The invention provides a method and system for rapidly estimating hydraulic characteristics of unsaturated soil based on hierarchical Bayesian. The specific steps are as follows: obtaining the location of a tested site and soil properties; performing a tensiometer method detection at the location of the tested site to obtain a first database consisting of matrix suction and effective saturation data pairs; using the location of the tested site and the soil properties as indexes, retrieving n sites with similar soil properties to the tested site in a soil-water characteristic curve database of unsaturated soil, wherein the n sites correspond to n groups of matrix suction and effective saturation data pairs to form a second database; constructing a model for rapidly estimating hydraulic characteristics of unsaturated soil based on hierarchical Bayesian; inputting data from the first database and the second database into the model for rapidly estimating hydraulic characteristics of unsaturated soil based on hierarchical Bayesian to obtain a soil-water characteristic curve representing the hydraulic characteristics of unsaturated soil at the tested site, thereby reducing the cost of detecting the soil-water characteristic curve and improving work efficiency.

1. Name of the product in this design: Cable tension meter calibration device. 2. Purpose of this design: for the calibration of a cable tension meter. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The present invention discloses a compensation system and method for the hardness fluctuation of all stands of a continuous rolling mill. The system includes: a tension calculation module, which is used to obtain the vertical pressure of the tension measuring roll fed back by the tension meter between the stands of the continuous rolling mill set, and calculate the actual strip tension value between the stands by combining the weight of the tension measuring roll, the weight of the strip, and the size of the tension meter wrap angle; a tension difference calculation module, which is used to calculate the unit tension difference of the actual strip between the stands by combining the actual strip tension value, the set control tension value, the set thickness and width of the current strip; a compensation amount calculation module, which is used to calculate the speed control compensation amount of the corresponding stand by using the unit tension difference; and a function main control module, which is used to superimpose the speed control compensation amount on the corresponding stand speed control amount to control the tension fluctuation between the stands of the continuous rolling mill set. Through the present invention, the tension fluctuation between the stands caused by the strip hardness fluctuation can be dealt with, thereby realizing the control compensation for the hardness fluctuation.

The present invention provides a method for setting the tension of a hot continuous rolling coiling unit. The method includes the following steps: establishing grades of steel strength and assigning a strength value to each strength level; constructing a basic formula for linearizing the tension according to the preset minimum strength, minimum width, and regression of the rolling thickness; determining the strength coefficient and the width coefficient; determining the total tension calculation formula based on the basic formula for linearizing the tension, the strength coefficient, and the width coefficient; and substituting the strength value corresponding to the strength level into the total tension calculation formula to determine the tension of the hot continuous rolling coiling unit. The tension of the present invention can be calculated linearly, avoiding the problems of tension setting jumps and the need for a large number of standard tables to be manually input in the traditional look-up table method. It also avoids the problems of width narrowing or end face misalignment caused by unreasonable tension settings when using the look-up table method.

Various embodiments of a suture tensionometer for measuring a tensile force applied to a surgical suture are disclosed herein.

The utility model belongs to the technical field of enamelled wire measurement, and particularly relates to an alloy enamelled wire tension testing device which comprises a test board, one end of the test board is provided with a limiting groove, and one end of the limiting groove is provided with a stop block. According to the tension testing device for the alloy enameled wire provided by the utility model, the movable winding block is arranged at the middle position of the limiting slide rail, one end of the alloy enameled wire to be tested is wound for a circle on the movable winding block on the movable frame and then is straightened, and then is smoothly wound for a circle on the movable winding block on the wire tension meter; then two position control screw rods are operated to rotate to move a position abutting plate forwards until a movable winding block is pushed to the leftmost position where the leftmost end cannot move forwards in a limiting sliding rail, an edge position motor is started to drive a frame control screw rod to rotate in a rod bearing hole, and a movable frame drives one end of the alloy enameled wire to pull outwards to a certain limit; at the moment, tension data can be read through the wire tension meter, and the integrated effect of fixing, mounting and testing of the device is improved.

The utility model relates to a steel cable tensiometer calibration device which is used for tensiometer calibration and comprises a base, a bottom plate, a driving assembly, a clamping assembly, a detection assembly and a connecting assembly. The driving assembly is arranged on one side of the bottom plate and is arranged in the base; the clamping assembly is arranged on the other side of the bottom plate in a sliding mode, and the clamping assembly is connected to the driving end of the driving assembly; the clamping assembly is arranged on the bottom plate, the detection assembly is arranged on one side of the bottom plate, a connecting assembly is arranged between the detection assembly and the clamping assembly, a tensiometer is arranged on the clamping assembly, and the tensiometer is connected to the detection assembly through the connecting assembly. The technical problems that in a traditional tensiometer calibration method, manual operation causes measurement errors, and the sensor measurement errors cannot be compared and analyzed are solved.

This application discloses an experimental method and related equipment for simulating strip steel misalignment and warping defects in a furnace, relating to the field of quality control technology for strip steel heat treatment processes in the metallurgical industry. The method includes: acquiring experimental parameters, including target roll profile parameters, target tension parameters, and target speed parameters; controlling the operation of an experimental device based on the experimental parameters, wherein the experimental device includes an integrated uncoiling and coiling machine, multiple steering rollers, at least one correction roller, and a tension meter roller; acquiring image data of the operating status of the experimental strip steel during the operation of the experimental device; determining the defect characteristics of the experimental strip steel based on the image data of the operating status, the defect characteristics including at least one of misalignment and warping characteristics; and generating a correlation analysis result between the strip steel defects and the experimental parameters based on the defect characteristics and the experimental parameters.

The invention discloses an anti-freezing soil tensiometer, and relates to the technical field of soil tension measuring equipment, the anti-freezing soil tensiometer comprises a pottery clay head, a control mechanism and a power supply mechanism, an organic glass tube is mounted on the pottery clay head, the upper surface of the organic glass tube is of an opening structure, and a sealing cover is fixedly mounted at the upper end of the organic glass tube; a protection mechanism is fixedly installed on the outer surface of the sealing cover and arranged on the outer surface of the organic glass tube in a sleeving mode, and a pressure sensor, an exhaust pipe and a heating circulation mechanism are fixedly embedded in the sealing cover. According to the soil tensiometer, the functions of heating and heat preservation in the organic glass tube are added, the anti-freezing function is effectively added, water can be supplemented to the organic glass tube in time, the accuracy and reliability of soil moisture tension measurement are improved, the service life of equipment is prolonged, and meanwhile the warning function is added, so that the soil tensiometer is not prone to being accidentally touched and damaged.

The invention discloses an intelligent self-cleaning soil tensiometer, and relates to the technical field of soil tension measuring equipment. Comprising a microporous argil head, a protection mechanism is fixedly mounted on the upper surface of the microporous argil head close to the outer side, an organic glass tube is fixedly mounted between the inner wall of the protection mechanism close to the lower side and the microporous argil head, the upper surface of the protection mechanism is connected with a control box through a connecting mechanism, and a plug is fixedly embedded in the middle of the lower side wall of the control box; the plug is inserted into the upper surface of the organic glass tube, a heating mechanism is fixedly mounted on the lower surface of the plug, and the heating mechanism covers the outer side of the organic glass tube. The regular automatic cleaning function of the soil tensiometer is added, the micropore clay head is kept smooth for a long time, the measurement result is more accurate, meanwhile, the protection, waterproof, anti-interference and heating functions are added, the influence of the external environment is effectively avoided, the measurement accuracy is improved, the warning function is added, and the soil tensiometer is prevented from being accidentally touched and damaged.

The invention relates to the technical field of geological disaster monitoring, in particular to a loess structural attenuation disaster prevention and control method based on matric suction dynamic monitoring. Aiming at the problems of limited measurement range, poor long-term stability and early warning lag in the existing loess structural attenuation monitoring, the invention provides the following technical scheme: the system comprises test equipment for realizing dynamic monitoring, and the test equipment is a penetration tensiometer; the permeation tensiometer comprises a ceramic disc cap, a polymer cavity, a pressure sensor, a data line and a data acquisition instrument; the pressure sensor is packaged through a ceramic disc cap, is connected with the data acquisition instrument through a data line, and is used for reading the matrix suction value in the soil sample. All-weather constant-pressure monitoring is achieved through the synthetic polymer permeation tensiometer, a three-dimensional monitoring network of the loess area is constructed, potential hazards are accurately captured, an efficient and reliable long-term monitoring solution is provided for geological disaster prevention and control, and the early warning timeliness and the prevention and control effect are effectively improved.

The invention belongs to the technical field of oil exploration tension well temperature mud resistivity logging, and particularly discloses a downhole pressure self-adaptive three-parameter probe and a using method thereof. Comprising a probe shell, a first through hole is formed in one end of the probe shell along the axis, a pressure-bearing plug is arranged at one end of the first through hole, the other end of the first through hole is connected with a probe upper connector, a balance assembly, a temperature sensor and a resistivity sensor are arranged on the side wall of the probe shell, and a plurality of oil injection holes are further formed in the side wall of the probe shell. An oil injection screw is arranged in each oil injection hole, a second through hole is formed in the probe upper connector along the axis, a limiting stud, a connecting shaft and a tensiometer are sequentially arranged in the second through hole, and a pressure-bearing plug is arranged at the end, away from the probe shell, of the second through hole. According to the invention, the balance assembly and each measurement assembly are detachable, so that the problem that the measurement accuracy is affected due to difficulty in disassembly and maintenance caused by long-term contact between the balance assembly and slurry is avoided.

The application provides a thickness AGC control method based on tension deviation detection and related equipment. The method comprises the following steps: measuring actual tension T act in real time; obtaining a tension setting value signal T ref , a thickness signal and a width signal of a strip; calculating unit tension deviation ΔT by using the tension setting value signal T ref , the thickness signal and the width signal and the actual tension T act ; calculating a change rate of the unit tension deviation based on the unit tension deviation ΔT; and obtaining a roll gap adjustment amount ΔS based on the change rate of the unit tension deviation. Thus, a thickness control method based on tension deviation is established. For raw materials, such as head and tail of tinned cold hard base plate or high-strength steel cold hard base plate, thickness fluctuation with high amplitude and high frequency caused by factors such as performance fluctuation can be well controlled in time, so that the thickness of the strip is stable, and the number of waste and defective products caused by thickness exceeding the standard is reduced.

1. The name of this design product: Tension meter (mechanical). 2. Application of this product: Used for measuring the tension values ​​of various copper strands, ropes, cables, and transmission belts. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: main view.

The invention discloses a rolling mill tensiometer non-stop online calibration method. The method comprises the following steps: firstly, carrying out a rolling mill idle running test to collect output data of each tensiometer; an abnormal rack is preliminarily identified after analysis; secondly, carrying out a rack throwing test on the identified abnormal rack or the adjacent rack, recording the tension measurement value of the related rack when the rack is thrown, verifying the abnormal rack, and identifying an abnormal tensiometer existing in the abnormal rack; and finally, adjusting the tension value of the abnormal tensiometer to recover normal tension measurement. By the adoption of the method, verification is carried out according to the actual working condition in the implementation process, live verification of the rolling mill tension detection system can be rapidly and accurately carried out under the condition that production is not interrupted, stable production is guaranteed, the production efficiency is improved, and the product quality can also be guaranteed.