251 results about "Force gauge" patented technology

Apparatus and methods for an implant are provided. The implant may have a constrained configuration and a relaxed configuration. The implant may include a strut having an end that may be captured by a hub and may define a reference angle in the relaxed configuration. The implant may include a swivel body that may engage a shaft of a delivery cable and may be rotated through the reference angle. The apparatus may include a pusher catheter to push the implant. The delivery cable may engage the implant. The apparatus may include gauge handle that may include a force gauge to indicate the presence of a force acting on the implant. The apparatus may include a bushing that may be fixed to an end of a pusher catheter. The bushing may move along a delivery catheter lumen and may guide the implant to a keyed position at the bushing.

Apparatus and methods for an implant are provided. The implant may have a constrained configuration and a relaxed configuration. The implant may include a strut having an end that may be captured by a hub and may define a reference angle in the relaxed configuration. The implant may include a swivel body that may engage a shaft of a delivery cable and may be rotated through the reference angle. The apparatus may include a pusher catheter to push the implant. The delivery cable may engage the implant. The apparatus may include gauge handle that may include a force gauge to indicate the presence of a force acting on the implant. The apparatus may include a bushing that may be fixed to an end of a pusher catheter. The bushing may move along a delivery catheter lumen and may guide the implant to a keyed position at the bushing.

Apparatus and methods for an implant are provided. The implant may have a constrained configuration and a relaxed configuration. The implant may include a strut having an end that may be captured by a hub and may define a reference angle in the relaxed configuration. The implant may include a swivel body that may engage a shaft of a delivery cable and may be rotated through the reference angle. The apparatus may include a pusher catheter to push the implant. The delivery cable may engage the implant. The apparatus may include gauge handle that may include a force gauge to indicate the presence of a force acting on the implant. The apparatus may include a bushing that may be fixed to an end of a pusher catheter. The bushing may move along a delivery catheter lumen and may guide the implant to a keyed position at the bushing.

Apparatus and methods for an implant are provided. The implant may have a constrained configuration and a relaxed configuration. The implant may include a strut having an end that may be captured by a hub and may define a reference angle in the relaxed configuration. The implant may include a swivel body that may engage a shaft of a delivery cable and may be rotated through the reference angle. The apparatus may include a pusher catheter to push the implant. The delivery cable may engage the implant. The apparatus may include gauge handle that may include a force gauge to indicate the presence of a force acting on the implant. The apparatus may include a bushing that may be fixed to an end of a pusher catheter. The bushing may move along a delivery catheter lumen and may guide the implant to a keyed position at the bushing.

The invention discloses a spiral bevel gear grinding force measuring method and system, electronic equipment and a medium, and the method comprises the steps: obtaining the measuring force in the X, Y and Z directions through a fixed dynamometer, and determining the installation angle of the fixed dynamometer according to the obtained measuring force in the X, Y and Z directions; based on the installation angle, determining a target coordinate transformation matrix between the fixed dynamometer and the gear grinding machine tool cutter shaft; calculating an axial stress component and a radial stress component of the cutter shaft of the gear grinding machine tool according to the measured measuring forces in the X, Y and Z directions and the target coordinate transformation matrix; tool setting between the spiral bevel gear workpiece and the grinding wheel tool is completed based on the axial stress component and the radial stress component; the target relative position of the grinding wheel tool and the gear grinding machine tool workpiece shaft is obtained; and according to the target relative position, the cutting force component of the grinding force and the normal force component of the grinding force are calculated. The precision of grinding force measurement of the spiral bevel gear can be improved.

The invention discloses an optical fiber three-dimensional force sensing calibration platform of an intrusive guide wire tip. The device is composed of an interventional medical guide wire, a four-core optical fiber, a single-mode optical fiber, a thermal diffusion coupler, a plurality of fiber Bragg gratings (FBGs), a pull and push dynamometer, a fixed supporting rod, an electric control displacement table, a sliding table and a coordinate card. The medical guide wire is a radiography guide wire, the interior of the medical guide wire is in a semi-hollow state, the four-core optical fiber is embedded into the tip end of the radiography guide wire, the FBGs are distributed on a fiber core of the four-core optical fiber, the prepared guide wire structure is fixed to a supporting rod provided with a clamp, and the pull and push dynamometer is arranged on an electric control displacement platform. Bending generated by horizontal collision of the tip end of the guide wire under the control of the motor is calibrated. The force sensor can be widely applied to medical interventional operations, and has the characteristic that the tip contact force is measurable, so that accurate detection of the contact stress of the guide wire and the blood vessel is realized, visual force feedback is formed, and the complication probability of the interventional operations is reduced. The invention relates to the technical field of novel medical devices.

The utility model discloses a push-pull force detection device, which comprises a push-pull force meter and a test platform connected with the push-pull force meter, and is characterized in that the test platform comprises a base, a push-pull force sensor and a detection device, the transmission mechanism comprises a transmission lead screw and a transmission sliding block arranged on the transmission lead screw in a sleeving mode, and the transmission sliding block conducts linear reciprocating motion in the axial direction of the transmission lead screw. The driving mechanism is connected with the transmission screw rod and drives the transmission screw rod to rotate; the clamping mechanism is used for clamping a to-be-tested product and comprises a first clamping assembly and a second clamping assembly, the first clamping assembly is connected with the transmission sliding block, and the second clamping assembly is connected with the pull and push dynamometer; the first clamping assembly and the second clamping assembly are oppositely arranged in the axial direction of the transmission lead screw. And the height adjusting mechanism is connected with the pull and push dynamometer to drive the pull and push dynamometer to move along the vertical direction. Through the arrangement of the height adjusting mechanism, the height of the pull and push dynamometer is adjusted, so that the height of the second clamping assembly is adjustable, the levelness of a product to be measured is kept, and the accuracy of drawing force measurement is improved.

The invention discloses a composite board bonding strength detection device and detection method, and relates to the technical field of bonding strength detection. Comprising a base and a rack fixedly connected to the upper end of the base, first sliding grooves are formed in the inner side of the rack, a cross beam is fixedly connected between the first sliding grooves, a dynamometer is fixedly connected to the lower end of the cross beam, connecting bases are fixedly connected to the lower end of the dynamometer and the upper end of the base, and clamps are arranged at the ends, close to each other, of the connecting bases; the first-stage braking assembly is arranged in the first sliding groove, located between the upper end of the cross beam and the top of the rack and used for counteracting movement inertia of the cross beam; when instantaneous force is applied to the non-Newtonian fluid through the piston disc, the non-Newtonian fluid is rapidly gathered to form a rigid structure to improve the hardness, so that the displacement of the piston disc is prevented, the cross beam is prevented from continuously displacing when being subjected to inertia, the position fluctuation of the cross beam caused by inertia is reduced, the occurrence probability of overshoot reading and return stroke reading is reduced, and the accuracy of measurement is improved. And the accuracy of detection data is improved.

The utility model discloses a force measuring mechanism, a force measuring device and an elastic member preload pressure adjustment device, wherein the force measuring mechanism includes a dynamometer, a connecting rod, a connecting seat and a connecting ball, and is connected to the dynamometer by setting a measuring assembly with a connecting ball. When contacting a part to be tested with a hollow cavity for force measurement, the connecting ball can be partially embedded in the hollow cavity and in line contact with the circumferential cavity wall of the hollow cavity, and the overall circumferential force of the part to be tested can be well transmitted to the connecting rod and then to the dynamometer through the connecting ball, so that the pressure value obtained is more accurate and the measurement accuracy is improved. The adjustment device can further drive the mounting part to rotate so that the position of the adjustment part on the mounting part is adjusted, thereby adjusting the preload pressure of the elastic member.

The invention provides a hip joint prosthesis. The hip joint prosthesis comprises a femoral stem body; the driving part is arranged on the femoral stem main body; the transmission part is movably arranged in the femoral stem main body, and the driving part drives the transmission part to move; the plug connector is telescopically arranged on the femoral stem main body to have a plug-in position and a first storage position, and the transmission part moves to drive the plug connector; when the plug connector is located at the plug-in position, the plug connector extends out of the femoral stem main body; when the plug connector is located at the first storage position, the plug connector retracts into the femoral stem main body; the force measuring piece comprises a dynamometer and a first elastic piece connected to the dynamometer, the dynamometer is movably arranged in the femoral stem body, and the dynamometer drives the first elastic piece to stretch out and draw back on the femoral stem body so that the first elastic piece can have a force measuring position and a second containing position. According to the technical scheme, the problem that the hip joint prosthesis in the related technology cannot give consideration to the stability after implantation and the convenience of later maintenance at the same time is solved.

The utility model relates to the technical field of hydrological monitoring, and discloses an underground water real-time monitoring well which comprises a monitoring well. The monitoring analysis module comprises a processor, and an electronic dynamometer, a range finder and a pressure sensor which are electrically connected with the processor; the movable pulley is connected with the electronic dynamometer, the electronic dynamometer is used for measuring the stress of the movable pulley, a connecting rope is wound around the movable pulley, and one end of the connecting rope is located in the monitoring well and connected with a density ball; the hoisting mechanism is arranged on the ground surface, is electrically connected with the processor and is used for winding the other end of the connecting rope; the supporting frame is fixedly connected to the inner wall of the monitoring well, the supporting frame is located above the NAPL layer, a range finder is installed on the supporting frame and used for measuring the distance between the supporting frame and the upper surface of the NAPL layer, a telescopic rod is arranged on the supporting frame in a penetrating mode, and the lower end of the telescopic rod is connected with a pressure sensor. According to the utility model, the underground water density and the NAPL phase density can be monitored in real time by utilizing a drainage method, so that the calculation precision of the NAPL layer thickness is improved.

The invention provides a roadway global anchor rod cable anchoring force real-time monitoring system and method, anchor rods / anchor cables are installed in drill holes in a roadway top plate and a roadway side part, and the part, outside a locking nut, of the outer surface of a spherical crown part in a tray serves as an annular monitoring area; the dynamometer is arranged between the locking nut and the tray; the guniting-sensing composite layer comprises a guniting layer and a micro film strain sensor array; the in-tunnel processing terminal is connected with the micro film strain sensor array; the ground processing terminal is connected with the in-tunnel processing terminal through the relay transmission equipment; the method comprises the steps that when the anchor rod / anchor cable is installed, the dynamometer and the intelligent sensing unit are synchronously installed; applying a designed pre-tightening force; receiving the strain sequence signal and sending the strain sequence signal to a ground processing terminal; and obtaining strain force data through a strain-axial force calibration model, and carrying out graded early warning. According to the system and the method, unmanned, real-time and intelligent monitoring of the anchoring force state of the roadway global anchor rod cable can be realized.

The invention provides a device and a method for testing the shearing and compression performance of a helicopter engine damping part. The shearing performance testing device comprises a base (1), a fixed support (3), a stress application lead screw (4), a tension sensor (5), a dynamometer (6), a double-fork (7), an arc-shaped pulling plate (8), a mounting support (10), a dial indicator (11) and a magnetic base (12). The compression performance testing device comprises a base (1), a fixed support (3), a stress application lead screw (4), a tension sensor (5), a dynamometer (6), a mounting support (10), a dial indicator (11), a magnetic base (12), a single lug (13) and a square loading frame (14). Measurement of shear and compression deformation displacement of the engine damping member is realized, shear and compression performance of the engine damping member is verified, and the installed damping member is ensured to effectively prevent transmission of vibration waves and weaken harm of inertial impact to an engine. And the situation that the installation of the damping piece with substandard static performance affects the flight safety is avoided. The test cost is low, the operation is simple, the test efficiency is high, and the deformation displacement of the damping member can be visually reflected.

The invention discloses a torque measurement calibration method for a high-power dynamometer, and the method comprises the following steps: a torque measurement calibration device for the high-power dynamometer and the high-power dynamometer are installed, and the torque measurement calibration device for the high-power dynamometer comprises a lever, a standard dynamometer, a hydraulic force application device, a display control terminal and an inclinometer, one end of the lever is connected with the high-power dynamometer, the other end of the lever is attached to a pressure head of the standard dynamometer, the standard dynamometer is connected with the hydraulic force application device, the hydraulic force application device is connected with the display control terminal, the display control terminal communicates with the standard dynamometer and the inclinometer, the inclinometer is arranged on the lever, and the pressure head of the standard dynamometer is a conical pressure head. The lever is provided with a conical force application hole matched with a standard dynamometer pressure head; determining a force application hole position of the torque measurement calibration device of the high-power dynamometer; zero setting is carried out on the high-power dynamometer indicating device; and determining the torque metering accuracy of the high-power dynamometer. The method has the advantages that the length of the force arm is accurate and constant, the error is small, and the operation is safe.

A dynamometer for detecting a force applied to an intravascular device, comprising: a housing; a channel in the housing configured to receive the intravascular device; and a sensor disposed in the housing to measure a force from the intravascular device to the housing. The dynamometer may also include a plurality of electronic components to process force readings from the sensor, transmit the plurality of readings to an external receiver, and indicate the plurality of force readings to a user.

The present invention relates to the technical field of tunnel engineering, and specifically discloses a pipe jacking method test device and method thereof, comprising a pipe jacking bracket, a pipe jacking machine is arranged on the pipe jacking bracket, the pipe jacking machine comprises a cutter head, a drive system and a motor, the cutter head is provided with a cutting blade, and the pipe jacking machine is connected to a control terminal; it also comprises a rear pipe jacking section, the pipe jacking machine and the rear pipe jacking section are connected by a dynamometer; the rear pipe jacking section is provided with evenly arranged grouting holes, and the grouting holes are connected to a grouting device through a grouting pipeline for injection of friction-reducing mud; it also comprises a test box, the test box is filled with model soil, circular openings are arranged on both sides of the test box, a sealing device is installed on the circular opening on one side, the pre-jacking channel of the pipe jacking machine and the rear pipe jacking section is a channel between two circular openings in the model soil, and a plurality of soil pressure sensors are installed around the pre-jacking channel. The present invention is used to provide data support for the corresponding friction resistance, soil pressure and deformation under different friction-reducing mud ratios during the jacking process of the pipe jacking machine.

The utility model discloses a flapping door locking force detection device, which comprises a mounting base, a moving mechanism, a lifting mechanism, a dynamometer and a displacement sensor, and is characterized in that the mounting base is mounted on a flapping door mounting table, the moving mechanism is mounted on the mounting base, the lifting mechanism is connected with the moving mechanism, and the moving mechanism drives the lifting mechanism to move; the dynamometer is mounted on the lifting mechanism, the lifting mechanism drives the dynamometer to lift, and the displacement sensor is mounted on the mounting base, so that the current situation that the locking force of the flap door unit cannot be accurately and quantitatively detected originally is changed, the equipment debugging and testing efficiency is improved, the flap door unit product testing and model selecting time of an owner is shortened, and the product testing efficiency is improved. And meanwhile, through the arrangement of the lifting mechanism, the height of the dynamometer can be conveniently adjusted, so that the device can detect the locking force of different positions of the flapping door, and the multi-position locking force measurement is realized.

This application belongs to the technical field of bolt fastener tightening torque coefficient measurement in low-temperature environments, specifically relating to a device and method for measuring the bolt fastener tightening torque coefficient at -196℃. The device includes a low-temperature environment chamber, a bolt clamp, a nut tightening tool, and an axial force gauge. The low-temperature environment chamber has a liquid nitrogen injection hole. The bolt clamp is installed inside the chamber to clamp the head of the test bolt. One end of the nut tightening tool is located outside the chamber and is used to connect a tightening drive tool and its torque sensor; the other end extends into the chamber to hold the test nut and tighten it onto the bolt thread. The axial force gauge is fitted onto the outer circumference of the bolt thread to measure the preload between the bolt and the nut.

The present invention provides a static pressing force detection device and method for an electric rear cover that is simple to operate and universal for various vehicle models, ensuring that the dynamometer is pressed in at the same point and the pressing direction is parallel to the rear cover lock, while being able to quickly measure the size of the vehicle body. An electric rear cover static pressing force detection device according to one embodiment of the present invention includes a measuring component and a detachable detection component. The measuring component is used to measure the static pressing force of the electric rear cover, and the detachable detection component is used to measure the size of the measured subject. Among them, the measuring component includes a dynamometer and an auxiliary measuring component, and the auxiliary measuring component is installed on the electric rear cover, and is used to adjust the pressing direction of the dynamometer to be parallel to the rear cover lock, and the dynamometer is pressed against the auxiliary measuring component to measure the static pressing force.

The present invention relates to a device for inspecting the adhesive force of a secondary battery cell and, more specifically, to a portable adhesive force measuring instrument and system for quantitatively inspecting the adhesive force of cells in a production line. According to one embodiment of the present invention, the portable adhesive force measuring instrument and system can be provided, the measuring instrument comprising: a case having a lid, and having a storage space formed therein; a base plate which is provided inside the case, and which is exposed to the outside while the lid is open; a sample loading table which is provided on one side of the base plate, and which protrudes a predetermined height from the base plate such that a sample of which the adhesive force is to be measured is fixed thereon; a linearly-moving table provided on a straight line with the sample loading part on the table; an adhesive force gauge which has a clamp connected to a separator of the sample, and which is mounted on the linearly-moving table so as to acquire adhesive force data while linearly moving; and an interface screen for controlling the movement of the linearly-moving table.

The invention provides a bridge model loading detection test device, and relates to the technical field of bridge test devices.The bridge model loading detection test device comprises a supporting frame, a static system simulation mechanism, a loading mechanism and a deflection detector, the supporting frame is provided with at least one pair of force measuring mechanisms, and each force measuring mechanism comprises a cylindrical ring and a dynamometer vertically fixed in the cylindrical ring; a support for supporting the end part of the model beam is arranged on the cylindrical ring; the cylindrical ring is arranged in a rolling manner along the axial direction of the model beam; the static system simulation mechanism comprises a horizontal moving part; the loading mechanism is used for abutting against different positions of the model beam to apply loads. The deflection detector is positioned below the mounting area; according to the invention, model beams of different static systems can be simulated, and loading and deflection change and stress change measurement can be carried out on the model beams of different static systems, so that more sufficient test data can be provided.

The invention discloses an improved offshore pile foundation horizontal bearing capacity detection device and method.The detection device at least comprises a loading unit, a monitoring device and a counter-force unit, and the loading unit comprises an anti-overturning spiral pile, a connecting cross frame, a self-adaptive fulcrum, a ball hoop system, a self-adaptive steel lever, a steel force application beam and a steel force transmission beam; a plurality of anti-overturning screw piles are driven into water and connected together through a connecting cross frame to form an anti-overturning screw pile foundation, a self-adaptive steel lever is connected with the anti-overturning screw piles through a ball hoop system and a self-adaptive fulcrum, and the short arm end of the self-adaptive steel lever is connected with a test pile through a steel force application beam. The long arm end is connected with a steel high-strength cable through a steel force transmission beam; a digital dynamometer of the monitoring unit is fixed on a steel force application beam, and a holder laser displacement sensor is fixed on a connecting cross frame. The device is adaptive to a test space object and a loading size position, is convenient and efficient to construct and can be repeatedly used, and the detection cost and the time period are greatly reduced.

The present invention relates to the technical field of sunset yellow filter press devices, and specifically to a filter press processing device for sunset yellow production, comprising a filter press frame and a filter press plate slidably arranged on the filter press frame, pulley assemblies being arranged on both sides of the filter press plate, and separation units being symmetrically arranged on both sides of the filter press frame for driving the pulley assemblies to achieve separation of the filter press plates. The present invention improves the filter press residue processing efficiency through the synergistic effect of mechanical linkage and monitoring, which is specifically manifested as follows: the combined effect of a hydraulically driven lifting mechanism and a knocking assembly is adopted to achieve a vibration synergistic effect formed by the vertical impact generated by the fall of the filter press plate and the horizontal knocking driven by an eccentric wheel, thereby overcoming the problem of high-viscosity filter residue adhering to the filter press plate; the electronic force gauge senses the quality of the residual filter residue during the lifting process of the filter press plate to ensure that the filter residue removal meets the standards.

The invention discloses a method for detecting bearing capacity of a drainage layer of a bottom plate of an underground parking lot. The method includes preparing a plurality of hydrophobic layer samples; a dynamometer is used for pressing the hydrophobic layer sample and acquiring detection data; recording detection data of the hydrophobic layer sample, and determining a stress limit value of the hydrophobic layer sample; and selecting the hydrophobic layer sample with the stress limit value meeting the design requirement of the parking lot bottom plate hydrophobic layer as a formal product to lay the hydrophobic layer of the parking lot bottom plate. According to the method, samples are manufactured for the hydrophobic plates with different convex cup heights, convex cup diameters, thicknesses and convex cup numbers, and the bearing capacity of the samples is detected, so that the bearing capacity of the particularly manufactured hydrophobic layer is objectively and accurately determined, and the hydrophobic plates meeting design load requirements are selected to manufacture the hydrophobic layer; and the influence of collapse of a floor hydrophobic layer caused by uneven stress of the floor of the underground parking lot when vehicles enter and exit frequently on the hydrophobic function is reduced.

A test apparatus comprising including a housing with an interior forming a watertight main measuring chamber for housing a bar, a framework structure supporting the housing, a sample holder in the main chamber, and an air-conditioning system. The apparatus includes a humidifying system, a thermal regulation system, and a humidified air recirculation system. The sample holder has two lower support elements for supporting two end parts of the sample bar, respectively, corresponding to the unsealed end face of the sample bar. Two suspension arms are each hinged at its lower end to one of the lower support elements, the first arm hinged to an upper part of the framework structure, and the second arm hinged to be connected to a force gauge in the main chamber, the support elements suspended on the suspension arms to keep the sample bar axially suspended in a horizontal plane without causing axial stresses in the bar.

This invention discloses a sample loading fixture for stress testing, relating to the field of stress testing technology. The invention includes a base plate with several support components mounted on its bottom surface. A slide rail mechanism is fixed to the top of the base plate, and a support assembly and a testing assembly are connected to the top of the slide rail mechanism. The support assembly and the testing assembly are interconnected. A positioning seat is mounted at one end of the top surface of the base plate. A positioning component is provided on one side of the support assembly, and a pressure plate mechanism is provided on the other side. An adjustment mechanism is provided between the testing assembly and the base plate. A position counting component is provided on one side of the slide rail mechanism. This invention, through a stepped planning of the distance the support assembly is pulled, and by comparing the tensile force display of the force gauge and the tensile stress reading of the stress sensor, forms multiple regular test control groups. Coupled with a high-precision testing environment, this enables comprehensive measurement of tensile stress data and completes a comprehensive and accurate recording of the tensile strength of the substrate glass.

The utility model provides a kind of for calibration tool of guide wire delivery mechanism force sensor, including calibration module and inspection module;Force gage is installed on calibration module, linear module is installed on inspection module, first force sensor is slidably installed on linear module, second force sensor is installed in guide wire delivery mechanism, first force sensor is coaxially connected with force gage or second force sensor by guide wire;First force sensor is driven to slide by linear module, the reading of first force sensor is calibrated using the reading of force gage, or the reading of second force sensor is calibrated using the reading of first force sensor;The utility model first calibrates first force sensor on inspection module using force gage on calibration module, then calibrates second force sensor using calibrated first force sensor, to greatly improve the calibration accuracy of second force sensor in guide wire delivery mechanism.

The invention relates to an automobile seat slide rail horizontal force measuring gauge, which belongs to the field of automobile seat part detection and comprises a workbench, a bottom plate, a horizontal adjusting assembly, a slide rail force measuring assembly, an inserting rod assembly and a lower slide rail fixing seat. The horizontal adjusting assembly comprises a ball head rod and a ball head rod seat; the slide rail force measurement assembly comprises an electric slide rail group, a dynamometer, a ball head pull rod and an insertion rod assembly; the inserting rod assembly comprises a connecting piece, an inserting rod, a lifting adjusting base and an upper sliding rail inserting rod. The ball pull rod passes through the through hole, and the ball-free end of the ball pull rod is hinged with the dynamometer; due to the fact that the horizontal adjusting assembly is connected between the workbench and the bottom plate, it is guaranteed that the bottom plate is in a horizontal state, the inserting rod assembly capable of adjusting the horizontal height is matched, it is guaranteed that the pulling force on the upper sliding rail is in the horizontal direction, and the accuracy of pulling force detection is guaranteed; the electric slide rail group is matched with the dynamometer to replace a worker to pull the upper slide rail by hand, so that the tension is uniform, and the read data is accurate.

The invention relates to an internal solitary wave acting force measurement method, which comprises the steps that S1, a first acting force F1'applied by an internal solitary wave to a first connecting rod is measured through a first dynamometer on the first connecting rod, and the first connecting rod is fixedly connected with the mass center of an underwater target in the Z-axis direction; s2, a second force meter on a second connecting rod is used for measuring a second acting force F2'applied by the internal solitary wave, the second connecting rod is fixedly connected with the mass center of the underwater target in the theta angle direction, and the theta angle direction is the direction which forms an included angle theta with the Z axis in the XZ plane; and S3, based on the measurement results of the first acting force F1'and the second acting force F2 ', the acting force FX applied to the mass center of the underwater target along the X-axis direction by the internal solitary wave is determined, and the components of the F1' and the FX in the direction of the second connecting rod are balanced with the F2 '. The problem that a complex multi-connecting-rod force measuring structure is large in error due to too many connecting points is effectively solved, a high-precision multi-component force sensor is not needed, and the multi-connecting-rod force measuring structure has the advantages of being simple in structure, low in cost, more accurate in measuring result and the like.

This utility model provides a static testing machine for airfoils, belonging to the technical field of static testing equipment. It solves the problem of inconvenient operation of existing static testing equipment. The airfoil static testing machine includes a base, a foundation, mounting components, a display, a suspension mechanism, a steel wire rope, a hand-operated hoist, a pull rope, a force gauge, a support, and a scale. In this utility model, when the pull rope is pulled, it moves the steel wire rope, thereby moving the force gauge and suspension mechanism downwards. During this process, the airfoil is subjected to the traction force of the steel wire rope, causing it to bend. Simultaneously, the force gauge continuously monitors the traction force of the steel wire rope on the suspension mechanism and feeds this force back to the display. When the force applied to the pull rope reaches a predetermined value, the airfoil bends to a certain extent and then stops bending. Thus, the magnitude of the traction force can be changed at any time according to testing needs without changing the load, making operation convenient.