15 results about "Tensometer" patented technology

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 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 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.

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.

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

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 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 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.

The invention belongs to the technical field of annealing furnace tension control, and relates to an annealing furnace specification transition tension control method and system, and the method comprises the following steps: obtaining the tension of each process section, calculating the tension difference of adjacent process sections as a first tension difference, and calculating the tension difference of strip steel before and after the same process section as a second tension difference; when any tension difference exceeds the threshold, the transition direction is determined according to the incoming material tension target and the outgoing material tension target; when the small tension of the adjacent process sections is switched to the large tension, the subsequent strip steel tension of the current process section is preferentially adjusted, otherwise, the forward strip steel tension of the next process section is preferentially adjusted, and if the threshold is still exceeded, the two sections of tension are synchronously adjusted in proportion; the tension of the same section is kept unchanged during large-to-small switching, and on the contrary, a subsequent strip steel tension instruction is issued when the weld joint reaches the next process section. According to the technical scheme, the tension difference of all the process sections is collected and calculated in real time, dynamic judgment of adjacent and same-section tension is achieved, specification transition tension is continuously coordinated, and precision and welding seam stability are improved.

The invention discloses an elevator landing door thrust detection device, and belongs to the field of elevator detection. Comprising at least two groups of spring tensometers, each spring tensometer is provided with an adjusting assembly used for adjusting the horizontal position of the spring tensometer, and the adjusting assembly is provided with a tension assembly used for applying constant tension to the spring tensometers; the tension assembly and the adjusting assembly are rotationally folded through a second folding unit, a folding supporting assembly used for overall supporting is assembled at the bottom of the tension assembly, and a distance measuring assembly used for detecting the landing door gap is integrated on the tension assembly; a positioning assembly is installed at the bottom of the folding supporting assembly. According to the elevator landing door thrust detection device, the tension direction can be calibrated in advance, 150N constant tension can be output, accurate alignment of the detection end and the force application point is achieved, positioning and supporting are stable, the problems that manual operation force is deviated, the force value is not stable, alignment depends on experience and the like are effectively solved, and detection reliability is improved.

The utility model discloses an extensometer protection device for high-temperature stretching, which relates to the field of metal high-temperature stretching detection, comprises a sliding rail, and is characterized in that the upper part of the sliding rail is connected with a first sliding seat and a second sliding seat in a sliding manner, and the upper parts of the first sliding seat and the second sliding seat are respectively and fixedly provided with a base; a frame body is fixedly installed on the upper portion of the base, an extensometer body is slidably connected to the position, between the first sliding base and the second sliding base, of the upper portion of the sliding rail, and locking devices are arranged on the front portion of the first sliding base and the front portion of the second sliding base. According to the extensometer protection device for high-temperature stretching, the first sliding seat and the second sliding seat are arranged on the sliding rail and support the frame body, and the frame body wraps the extensometer main body, so that the ceramic rod of the extensometer main body is not influenced to extend out when the extensometer protection device is used, and the extensometer main body and the ceramic rod of the extensometer main body can be surrounded on the inner side when the extensometer protection device is not used; and moreover, the size of the frame body is adjustable, and the application range is wide.

Methods and apparatuses for measuring water potential in gravel soil with an automatic water collection and replenishment system are provided. The apparatus includes a tensiometer assembly configured to measure soil water potential in a gravel soil region, a replenishment water collection unit configured to collect and pre-treat water resources, and provide replenishment water to the tensiometer assembly, a replenishment water degassing unit configured to degas and deliver water filtered by the replenishment water collection unit to the tensiometer assembly, and a control unit configured to acquire a water level in the tensiometer assembly, control the replenishment water degassing unit to replenish water to the tensiometer assembly for tension measurement. The replenishment water collection unit continuously collects the replenishment water, and the control unit conveys the water from the replenishment water collection unit to the replenishment water degassing unit when a condition is fulfilled.