2800results about "Torque measurement" patented technology

An inductive sensor system may comprise an upper rotor comprising an upper target having a first metallic pattern; a lower rotor comprising a lower target having a second metallic pattern; and a stationary circuit board positioned between the upper rotor and the lower rotor. The circuit board comprises one or more transmitter coil sets configured to generate electromagnetic field, and one or more receiver coil sets for sensing relative angular displacement movement between the upper rotor and the lower rotor. The one or more transmitter coil sets and the one or more receiver coil sets are circularly wound.

The invention relates to the technical field of automatic equipment control, in particular to an automatic equipment control system and method and a storage medium. The method comprises the following steps that a high-frequency laser scanner is used for scanning the surface of a target polishing part, B-spline surface fitting is carried out, and a surface fitting surface model is generated; controlling the polishing operation of the polishing industrial robot based on the surface fitting curved surface model, and performing polishing contact state detection to generate contact state point cloud data; based on the contact state point cloud data, grinding expected pose error analysis is carried out, reverse impedance error compensation is carried out, and a reverse impedance compensation amount is obtained; and the joint angle of the polishing industrial robot is corrected through the reverse impedance compensation amount, so that reverse impedance control over the automatic polishing equipment is achieved. By compensating the reverse impedance error of the automatic polishing equipment, accurate control over the automatic polishing process is achieved.

The invention relates to the technical field of motor detection, and discloses a motor instantaneous torque measurement method and system based on a high-bandwidth sensor, and the method comprises the steps: synchronously collecting a torque signal and a multi-source interference variable through the high-bandwidth sensor, and forming an original torque sequence after time synchronization superposition; extracting disturbance frequency characteristics through multi-scale wavelet transform and spectral analysis; a pre-trained adaptive filter model is utilized to generate a filter coefficient matched with the working condition, and primary filtering is completed; residual fluctuation is suppressed in combination with Kalman state estimation, and an optimized torque estimation value is obtained; parameter self-adaptive compensation is realized through online calibration weight updating, and a stable torque measurement sequence is output; load abrupt change pre-judgment and threshold value dynamic updating are achieved based on time-frequency correlation analysis, and finally rapid measurement convergence after working condition abrupt change is ensured through a closed-loop reset mechanism. According to the method, the problem of low instantaneous torque measurement precision in the prior art can be solved.

The invention relates to the technical field of ship propulsion system monitoring, in particular to a shafting load analysis method based on real-time data monitoring, and the method comprises the following steps: S1, collecting a pressure parameter and a displacement parameter of a shafting; s2, performing timestamp alignment and data frame encapsulation to generate a synchronous data stream; s3, shafting natural vibration noise and real load signals are separated, and shafting real-time torque distribution is calculated; s4, if the torque distribution deviates from the correction threshold value, graded early warning is triggered; and S5, generating an interactive report according to the triggered early warning level and the torque distribution result. According to the invention, through multi-sensor synchronous acquisition, edge calculation data alignment, vibration noise decoupling, dynamic safety threshold adjustment and intelligent fault tracing analysis, high-precision monitoring, abnormity early warning and intelligent maintenance of the shafting load are realized, and the safety and operation and maintenance efficiency of ship operation are improved.

In a torque sensor, a sleeve is an annular member that is attached to a first rotating member. An intermediate member is an annular member that is placed on an outer circumferential surface of the sleeve. A magnet is an annular member that is placed on an outer circumferential surface of the intermediate member. A yoke is attached to a second rotating member and faces the magnet in a radial direction. A rotating member connecting portion of the sleeve has a cylindrical shape and is contact with the first rotating member. An intermediate member connecting portion is at a position shifted with respect to the rotating member connecting portion in an axial direction. The intermediate member includes a thin portion and a thick portion having a thickness greater than that of the thin portion.

An annular body includes a base, a first resistance wire, a second resistance wire, a first terminal, and a second terminal. The base surrounds a central axis and expands in a direction intersecting the central axis. Resistance values of the first and second resistance wires change according to strain of the base. The first terminal is electrically connected to the end of the first resistance wire. The second terminal is electrically connected to an end of the second resistance wire. The first terminal is at a first position in the circumferential direction. The second terminal is at a second position in the circumferential direction. When viewed in the axial direction, the central angle defined by the first position, the central axis, and the second position is equal to or greater than about 90°.

The invention relates to an inductive torsion bar torque sensor (100), comprising at least a first and a second stator arrangement (10,10A) with each a receiving structure (11,11A) comprising a periodically repeated structure having a first and a second period, a first and a second rotor (20,20 A) rotatably arranged with respect to the first and second stator arrangements (10,10 A) forming two inductive position sensors (1,11A) for measuring an angle at each end of a torsion bar (5) and generate respective signals, at least one excitation or transmitter coil (40) and an oscillator circuit for generating a periodic alternating voltage and coupling it into the excitation coil(s) (40). The periodicity of the first receiving structure (11) is different from the periodicity of the second receiving structure (11A), the first and second receiving structures (11,11A) comprising a first and a second coil structure (101,101;102,102), the first rotatable rotor (20) serving the purpose of influencing the strength of an inductive coupling between the excitation coil(s) (40) and the first receiving structure (11), the second rotatable rotor (20A) serving the purpose of influencing the strength of an inductive coupling between the / an excitation coil(s) (40) and the second receiving 15 structure (11A). The signals generated by the first and second pair of receiving structures (11,11A) and rotors (20,20A) are orthogonal.

The invention provides a strain generation structure and a force sensor. The strain generating structure comprises: at least one strain body configured to strain under the action of an external force; wherein at least one concave-convex structure is formed on the surface of the at least one strain body, the concave-convex structure is provided with a concave part and a convex part adjacent to the concave part, the convex part of the at least one concave-convex structure is provided with at least one strain gauge, and the strain gauge is configured to sense the strain generated by the strain body; moreover, the strain generating structure is provided with a reference surface perpendicular to the axis of the strain generating structure, and each strain gauge of the strain generating structure is parallel to the reference surface. According to the strain generating structure, the strain gauges can be attached to a plane facilitating machine operation, and the detection performance of a six-dimensional force sensor is considered.

The invention relates to the technical field of coupler fatigue test, in particular to coupler fatigue test equipment which comprises a rack, a fixed seat, a sliding seat, a rotating disc, a first mounting plate, a torque sensor and a second mounting plate, the fixed seat is fixedly connected to the rack, the sliding seat is slidably connected to the rack, and the rotating disc is fixedly connected to the rack; the rotating disc is rotatably connected to the fixed seat around the axis of the rotating disc, the rotating axis of the rotating disc is horizontal, the first mounting plate is connected to the end, facing the sliding seat, of the rotating disc, one end of the torque sensor is fixedly connected to the end, facing the fixed seat, of the sliding seat, and the other end of the torque sensor is fixedly connected to the second mounting plate. The torque sensor and the rotating disc are coaxially arranged, and the first mounting plate and the second mounting plate are used for fixing the two ends of the coupler respectively. The torque sensor is adopted for torque acquisition, and the torque sensor and the coupling adopt a direct connection structure, so that errors caused by transmission are reduced, and the fatigue measurement precision of the coupling is improved.

The invention discloses a device and a method for measuring dragging torque of an electronic mechanical brake caliper assembly, and belongs to the technical field of automobile brake system testing. The device comprises a first supporting seat, a driving rotating shaft, a brake disc and a driven rotating shaft assembly with a torque sensor, and precise positioning of a caliper support is achieved through cooperation of a rotating clamp and a guide pin. During testing, the calipers clamp the brake disc firstly to output clamping force and then release pressure, the motor drives the brake disc to rotate by a circle to eliminate inertia moment, and then the torque sensor dynamically collects dragging torque. A modularized brake disc fixing seat is adopted to adapt to products of different specifications, a coupler compensates for shafting offset, a fixing block locking mechanism guarantees non-measurement state safety, and inertia errors are eliminated in combination with a dynamic and static friction separation measurement method. According to the scheme, the problems of positioning deviation, mechanical interference and friction interference in a traditional test are solved, and the measurement precision and efficiency of the dragging torque of the brake calipers are remarkably improved.

The invention relates to the technical field of motor testing, and provides a motor loss separation testing method, device and system and a readable storage medium. The method comprises the following steps: determining no-load iron loss of the motor at a corresponding rotating speed measuring point according to a mechanical torque and a dragging torque of the motor at each rotating speed measuring point; determining the load iron loss of the motor according to the simulation analysis and the actual load test; determining the loss of a motor body according to the motor operation parameters of the motor at the rotating speed measurement point; determining stray loss of the motor according to the alternating current side electric power; and no-load iron loss, load iron loss, motor body loss, stray loss and assembly iron loss are respectively output. Separation testing of the motor loss is achieved, the motor loss obtained through the separation testing can provide a reliable basis for design and optimization of the motor, and therefore the performance of the motor can be improved.

The invention relates to a position sensor, designed in particular for detecting torsion in a steering column, made up of a first magnetized magnetic rotor structure (100) comprising a plurality of magnets, of two flux-collecting components (210, 220) which define at least one air gap in which at least one magnetically sensitive element (300, 301, 302) is positioned, defined such that each collecting component (210, 220) has at least one primary collecting zone (211, 221) extended by at least one extension (216, 219, 226, 229) having at least one secondary collecting zone (214, 215, 224, 225), in that said secondary collecting zones (214, 215, 224, 225), end in flattened shoes that form the two poles of said air gap, and in that the transverse mid-plane (350) of said air gap intersects at least one of said extensions (216, 219, 226, 229).

A magnetoelastic torque sensor system comprising a shaft having at least one axial section magnetized in a circumferential direction; and a magnetic sensor device comprising three or four magnetic sensors; the sensor device being arranged in the vicinity of the shaft; the sensor device comprising a first semiconductor substrate having a processing circuit, a second semiconductor substrate having a first magnetic sensor, and a third semiconductor substrate having a second magnetic sensor (S2), each magnetic sensor configured for measuring a magnetic field component; wherein the first, second and third semiconductor substrates are incorporated in a single packaged device; the system being configured for determining a torque exerted upon the shaft, based on the measured field components, or based on pairwise differences thereof. A method of measuring a torque exerted upon a shaft.

Systems and methods for using machine learning to improve control, management, and operation of vehicle systems are disclosed. A system includes a processing circuit configured to: receive information indicative of an observed state of a vehicle system from a sensor of the vehicle, the vehicle system including a fuel system; determine a predictive state of the vehicle system over a prediction horizon; determine one or more constraints for the vehicle system; execute a control problem to determine a predictive state of the vehicle system based on the one or more constraints; determine a plurality of control inputs for the vehicle system based on the executed control problem; and command the fuel system of the vehicle based on at least one of the determined plurality of control inputs.

A sensor includes a structure and a detector. The detector is arranged to detect a deformation of the structure. The structure has at least four elastic sections. The at least four elastic sections are discretely disposed in an imaginary plane.

The invention discloses an electric actuator detection device based on a hydraulic braking principle and a test method thereof. The electric actuator detection device based on the hydraulic braking principle comprises a test bench, a hydraulic braking mechanism, a data acquisition mechanism and a control system. According to the electric actuator detection device based on the hydraulic braking principle, a relation model of dynamic and static action torques of an electric actuator is established through a control system, a complete quantity value tracing chain of multiple parameters of the electric actuator under actual working conditions is established, a recheck detection method outline of a nuclear-grade electric actuator is established, the off-line detection technology of the electric actuator is mastered, and the detection efficiency of the electric actuator is improved. And basic data is provided for online diagnosis of the valve. And full-parameter detection of the electric actuator can be realized through the data acquisition mechanism. Meanwhile, detection of various parameters of the electric actuator under actual working conditions can be simulated. Meanwhile, by means of a hydraulic braking mode, automatic continuous linear adjustment of the load and the load protection function can be achieved, and the load response sensitivity and the valve load simulation performance are improved.

An automobile hub bearing load friction torque testing machine and a testing method thereof relate to the technical field of bearing testing, and the automobile hub bearing load friction torque testing machine comprises a driving assembly, a mechanical shaft suspension assembly, a test bearing tool assembly, a friction torque measuring assembly and an axial loading assembly which are sequentially connected to the upper part of a testing machine tool body; a loading connector assembly is arranged outside the mechanical shaft suspension assembly, and the axial loading assembly and the radial loading assembly arranged at the lower part of the test machine tool body are connected with the loading connector assembly; a hydraulic bearing suspension system and a clutch mounting seat are fixed on a mounting bottom plate B of the friction torque measuring assembly at intervals, a dynamic torque sensor is fixed on a left side panel of the clutch mounting seat, and the hydraulic bearing suspension system and the dynamic torque sensor are fixedly connected through a torque limiter and a coupler in sequence. The right side of the dynamic torque sensor is connected with an electromagnetic clutch; the defect that in the prior art, the additional torque of a hydraulic / pneumatic bearing cannot be removed is overcome, and torque measurement is more accurate.

An apparatus, comprising: a first transmitting coil including at least one first portion and at least one second portion, the first and second portions having different polarities; and a second transmitting coil that is disposed above or below the first transmitting coil, the second transmitting coil including at least one third portion and at least one fourth portion, the third and fourth portions having different polarities, wherein the first and second transmitting coils are configured so that, when the first transmitting coil is not driven and the second transmitting coil is driven, a net magnetic flux through at least one of the first portions is approximately zero, the net magnetic flux being a magnetic flux that is entirely attributable to the second transmitting coil.

The sensor comprises two Hall type steering wheel angle sensors which are coaxially installed at a steering wheel transmission shaft, the models of the two Hall type steering wheel angle sensors are consistent, and the two Hall type steering wheel angle sensors are independently connected to a data processing module. When torque generated after the steering wheel is stressed acts on the steering wheel transmission shaft (1), a tubular column of the steering wheel transmission shaft deforms, rotation angles of deformation in different areas in the axial direction are different, and the two Hall type steering wheel angle sensors detect the tubular column rotation angles in the installation areas of the Hall type steering wheel angle sensors respectively and output the tubular column rotation angles to the data processing module. The data processing module calculates the torque borne by the steering wheel according to the angular deviation of the tubular column rotation angle measured by the two Hall type steering wheel angle sensors. Through cooperative work of the two sensors, the torque measuring function can be achieved, and the redundancy safety performance of the system can be improved.

The utility model discloses a rotating shaft torque detection device comprising a test motor and a torque detection device, the test motor and the torque detection device are connected with a rotating shaft fixing tool through flanges, and the rotating shaft fixing tool comprises a fixing mechanism, a driving mechanism and a plurality of locking mechanisms. The multiple locking mechanisms are fixedly connected to the front side of the fixing mechanism, and each locking mechanism comprises a threaded limiting pipe, a main mounting frame, two limiting sliding plates, an extrusion type sliding plate, a reset spring, a fixing plate, two ball driving rods, a plurality of spring telescopic rods and two spring telescopic rods. According to the utility model, the rotating shaft is fixed by using the fixing plate, and the fixing thermosensitive adhesive in a normal temperature state is adhered to the surface of the rotating shaft, so that the rotating shaft is further fixed, the rotating shaft is effectively prevented from deflecting when being driven by the tested motor to rotate, and the accuracy of torque detection is further improved.

The invention discloses a variable frequency motor load testing device and method, and relates to the technical field of variable frequency motor testing, and the device comprises a motor testing installation platform, a fastening T-shaped bolt, two variable frequency speed regulation asynchronous motors of the same model, a drum-shaped coupler, two inverters, a rectifier, a three-phase voltage regulator, a frequency converter and an intermediate DC link. According to the invention, two frequency conversion speed regulation asynchronous motors of the same model are coaxially connected, and the power generation electric energy of the accompanying test motor is fed back to an intermediate direct current link through an inverter, so that the cyclic utilization of the electric energy and the dual-motor structural design are realized, complex load equipment does not need to be configured, and the fixed asset investment is reduced; for motors of different models, only corresponding accompanying test motors need to be replaced, the universality is improved, through voltage and current monitoring in an intermediate direct current link and motor rotating speed and torque parameter collection, and by combining a multi-dimensional performance evaluation model, precise evaluation of the motor load performance is achieved, the test efficiency is improved, and the strict test requirements are met.

The invention discloses an automatic torsion testing machine. The automatic torsion testing machine comprises a first table support, a second table support, a third table support, a fourth table support and stand bars, wherein the framework of the whole torsion testing machine is formed by the first table support, the second table support, the third table support and the fourth table support, the stand bars are installed on the bottom corners of the framework, a working table is arranged above the third table support and the fourth table support, a second part detecting sensor is installed above the third table support and on the working table, and a first part detecting sensor is installed above the fourth table support and on the working table. The automatic torsion testing machine has the advantages that working efficiency is improved, labor intensity of workers is relieved, and the integral advanced level of an enterprise can be improved.

Disclosed are a torsion detection flange, a resistance-adjustable rotating wheel and an adjusting method therefor, and a sports device, wherein the resistance-adjustable rotating wheel comprises a fixing device, a resistance adjusting device, a rotating wheel, a metal spacer, and a torque detecting device, wherein the resistance adjusting device is provided with a magnetic surface and is mounted on the fixing device, the rotating wheel is provided with a magnetic conducting surface and is rotatably mounted on the resistance adjusting device in a manner that the magnetic conducting surface is corresponded to the magnetic surface, the metal interlayer is held between the magnetic surface of the resistance adjusting device and the magnetic conducting surface of the rotating wheel, and two ends of the torque detection device are respectively connected to the fixing device and the resistance adjusting device.

The invention relates to the technical field of hydraulic dynamometers, in particular to a hydraulic dynamometer for testing power output of an underwater engine, a positioning base is fixedly mounted on the upper end face of the rear side of a testing base, a driving motor is mounted at the top end of the positioning base, and a torque sensor is mounted on a front-end rotating shaft of the driving motor; a connecting shaft is installed at the front end of the torque sensor, a coupler is installed at the front end of the connecting shaft, a sliding base located on the front side of the coupler is slidably installed at the upper end of the testing base, a power measuring base is arranged at the upper end of the sliding base, a semicircular opening is formed in the upper end of the power measuring base, and a semicircular shell is fixedly installed in the semicircular opening. A left arc-shaped clamping plate and a right arc-shaped clamping plate are installed in the semicircular shell in a sliding mode, a locking component is arranged between the left arc-shaped clamping plate and the right arc-shaped clamping plate, and a hydraulic dynamometer is arranged in the semicircular opening. The torque value of the hydraulic dynamometer can be displayed, so that the test precision is improved, the measurement accuracy is ensured, and the reliability of a test result is ensured.

The utility model relates to a deep groove ball bearing grease injection production line which comprises a feeding and discharging mechanism, a flexibility detection mechanism, a grease injection mechanism, a weighing mechanism, a turnover mechanism, a gland mechanism, a grease homogenizing mechanism, a detection mechanism, a pushing mechanism and a workbench. According to the deep groove ball bearing grease injection production line, through mutual cooperation of the flexibility detection mechanism, the grease injection mechanism, the weighing mechanism, the turnover mechanism, the grease homogenizing mechanism and the like, all-directional grease injection, grease homogenizing and other operations of deep groove ball bearings can be achieved, the defective rate is reduced, the product consistency is guaranteed, and the product quality is greatly improved.

The invention provides a range extender operation safety monitoring method and device and terminal equipment, and is suitable for the technical field of new energy automobiles, and the method comprises the steps: obtaining operation parameters, operation parameter duration and operation mode information of a range extender; based on the operation mode information, calculating an operation parameter threshold according to the operation parameters; and obtaining safety monitoring information of the range extender according to the operation mode information, the operation parameter, the operation parameter duration, the operation parameter threshold, a preset target parameter and a preset duration threshold. Real-time monitoring is carried out through the operation parameters and the operation parameter duration time of the range extender, and fault pre-judgment is carried out on the range extender in different operation states through the change condition and the operation parameter duration time of the range extender, so that the range extender can be monitored before the range extender breaks down. And measures are taken in advance in time aiming at possible faults of the range extender, so that the safety and the reliability in the running process of the range extending type automobile are improved.

A ball screw bearing efficiency test device disclosed by the present invention comprises a tool table and a tested screw rod, the tested screw rod is composed of a screw rod shaft and a screw rod sleeve which is used for sleeving the screw rod shaft and is movably matched with the screw rod shaft so as to perform sliding motion along the axis direction of the screw rod shaft, and the tool table is provided with a driving seat, a test seat and a sliding seat. The tested screw rod is located in the test seat, and the drive seat is provided with a first drive member used for driving the screw rod shaft to move and a first detection member used for cooperating with the first drive member to detect the torque generated when the screw rod shaft moves. The tool table is provided with a loading screw rod and a second driving part used for driving the loading screw rod to do relative sliding motion in the axis direction of the tested screw rod. A loading part used for being matched with the second driving part to apply an axial load to the transmission sleeve is arranged between the loading screw rod and the screw rod sleeve. The problem that in the prior art, no detection equipment for detecting the efficiency of the ball screw matched with the MKC2 operating system exists is solved.

The invention provides an operation power identification method and device of a reciprocating compressor, a medium and equipment. The operation power identification method comprises the steps that valve state information of all air cylinders in the reciprocating compressor in a detection period is obtained; and determining the total power of the reciprocating compressor according to the valve state information and the rated power of each cylinder. The working state of each cylinder in the detection period is determined through the valve state information, and is further combined with the rated power of each cylinder, so that the total power of the reciprocating compressor is accurately identified, and the management accuracy of the reciprocating compressor is guaranteed.

Provided is a magnetostrictive torque measurement device that makes it easy to ensure accuracy of torque measurement, sensitivity of torque measurement, or both. A magnetostrictive torque measurement device 1 comprises: a rotary shaft 2 that has a detected part 4 that has magnetostrictive characteristics at a portion in the axial direction of an outer circumferential surface; and a magnetostrictive torque sensor 3. The magnetostrictive torque sensor 3 includes: a holder 5 that is formed from a synthetic resin, has an inner circumferential surface 7 that is loosely fitted in the radial direction onto the outside of the detected part 4 so as not to rattle, and does not rotate even during use; and a coil unit 6 that is held by the holder 5 and has a detection part 12 that includes a plurality of detection coils 11 (11a–11d).

The invention provides a joint torque sensor and a robot. The joint torque sensor comprises at least two strain beams and a strain gauge, wherein each strain beam comprises a first mounting surface and a second mounting surface which are oppositely arranged; strain gauges are mounted on each first mounting surface and each second mounting surface; the plane where each first installation face and each second installation face are located intersects with the direction of torque. Wherein the strain gauge comprises at least one strain gauge, the joint torque sensor further comprises a bridge formed by connecting the strain gauges, and a bridge arm of the bridge at least comprises the strain gauges which are correspondingly arranged on a first mounting surface and a second mounting surface on the same strain beam and are arranged in series. The joint torque sensor provided by the invention can improve the detection precision.