107 results about "Potentiometer" patented technology

The invention discloses a 3D (three-dimensional) rocker potentiometer assembling machine. The 3D rocker potentiometer assembling machine comprises a stander, wherein the stander is provided with a rotatable transporting tray, and the rotatable transporting tray is provided with a plurality of storage grooves for storing rocker assemblies; a mechanical hand mechanism and a rocker assembly transporting mechanism, corresponding to the storage grooves, are arranged on the surface of the stander and the periphery of the rotatable transporting tray, the stander is also provided with a controller which is connected with the rotatable transporting tray, the mechanical hand mechanism and the rocker assembly transporting mechanism, and the controller is connected with an electric control system below the stander. By adopting the 3D rocker potentiometer assembling machine, a 3D rocker potentiometer can be automatically assembled and tested; not only can the production efficiency be greatly improved compared to the manual assembling, but also the labor cost is saved.

This utility model discloses a simulation device for testing the functional interface circuits of a simulating mobility scooter. It includes a controller with various functional interfaces, a plastic housing for testing the simulation interfaces, and a circuit board for interface simulation control connectors. A power enable switch, a simulated manual brake switch, an electromagnetic brake switch, a speed switching mode switch, a speed control potentiometer, an adjustable resistor mounting position, a horn, a working status indicator light, and CAN converter connector terminals are all electrically connected to the interface simulation control connector circuit board. The controller connector terminals are electrically connected to the controller with its various functional interfaces via an adapter cable. The working status indicator light is used to detect and indicate whether the operation is normal. This device simplifies and reduces the cost of testing the controller's functional interfaces and allows for simulated monitoring of the lifespan of the simulating mobility scooter's functions after functional testing.

This utility model discloses a band saw with a tension display device, including a sliding potentiometer. One end of the sliding potentiometer is electrically connected to a digital display screen. A threaded plate is slidably connected to the bottom of the sliding potentiometer, and a potentiometer bracket is fixedly connected to the upper end of the threaded plate. A slider is slidably connected to the top of the sliding potentiometer. An upper wheel shaft is fixedly installed at the center end of one side of the slider, and a hanging plate is fixedly connected to one side of the slider. A groove is opened on the surface of the hanging plate. The band saw with the tension display device of this utility model can control the tension of the saw blade through the rebound force of the spring, thus better controlling the tension of the saw blade. At the same time, the potentiometer push rod can move with the hanging plate through the groove, and the value on the digital display screen changes accordingly. The tension value is displayed in real time by adjusting the position of the upper wheel, making the adjustment more accurate and convenient for customer operation.

The present application relates to the technical field of additive manufacturing, and particularly relates to a self-compensation printing head and method, an extrusion direct writing device and a working method. The printing head comprises a shell, a barrel, a screw and a self-compensation assembly; the lower part of the shell has a cavity, the barrel is rotatably installed in the cavity, and the screw is installed in the barrel for extruding material; the self-compensation assembly comprises an outer magnetic pole, an inner magnetic pole and a potentiometer, the outer magnetic pole is arranged on the inner wall of the cavity of the shell, the inner magnetic pole is arranged on the outer wall of the barrel and is arranged in the same polarity opposite to the outer magnetic pole, and the potentiometer is also installed on the barrel; the magnetic force of the outer magnetic pole and the inner magnetic pole makes the barrel at an initial angle, and when the material shear force increases, the magnetic force is overcome to drive the barrel and the potentiometer to rotate. According to the present application, the screw rotating speed can be automatically adjusted in real time according to the change of the material shear force, the stable control of the extrusion amount of different materials is realized, and the precision, quality and efficiency of multi-material direct writing forming are improved.

The utility model discloses a device for synchronously controlling a withdrawal and straightening machine and a dummy bar of a continuous casting machine. The device comprises a potentiometer, a PLC (Programmable Logic Controller) control system, a signal isolation module, a withdrawal and straightening machine frequency converter, a dummy bar frequency converter and a digital display instrument. The potentiometer is connected to an analog quantity input port of the PLC control system through the one-input one-output optoelectronic isolator and is used for inputting an initial control signal; the output end of the PLC control system is connected with the withdrawal and straightening machine frequency converter and the dummy bar frequency converter to drive the two frequency converters to operate. A feedback signal of the withdrawal and straightening machine frequency converter is divided into two paths to be transmitted to the PLC control system and the withdrawal and straightening machine digital display instrument through the one-input two-output isolator, and a feedback signal of the dummy bar frequency converter is directly accessed to the dummy bar digital display instrument. The device eliminates electromagnetic interference through a photoelectric isolation module, integrates a water distribution model and a molten steel temperature data interface, adopts a standardized interface design for hardware, is adaptive to different continuous casting machine models, has the characteristics of strong anti-interference capability, stable signal transmission and visual real-time monitoring, and effectively improves the operation reliability of equipment.

This invention discloses a tension floating roller dual-cylinder synchronous lifting mechanism, belonging to the field of printing and packaging equipment technology, and mainly applied to the roll material tension control system of roll paper rotary die-cutting machines and printing presses. Addressing the shortcomings of existing swing-arm type tension floating roller mechanisms, such as large space occupation, low control accuracy, slow response, and poor synchronization stability, this invention adopts a dual-cylinder vertical direct drive structure combined with a gear and rack mechanical synchronization mechanism to replace the traditional swing-arm structure. The mechanism includes a base, a dual-cylinder drive mechanism, a floating roller, a synchronization stabilization mechanism, a linear potentiometer, and electrical control components. Precise tension adjustment is achieved through linear potentiometer position feedback combined with PLC closed-loop control, and the horizontal lifting of the floating roller is ensured by dual mechanical and electrical synchronous control. This invention features a compact structure, good synchronization, high tension control accuracy, and fast response speed, effectively ensuring stable roll paper conveying tension and providing a reliable foundation for high-precision registration in printing and die-cutting.

This invention discloses a device for the rapid installation and removal of a potentiometer, comprising a base, an embedded sleeve, an adjustment knob, a spring, a potentiometer, a gear set for shifting gears, and wire connectors. This device integrates mechanical structure design, elastic conductive connection, and gear transmission technologies, enabling rapid installation and removal of the potentiometer and convenient switching between coarse and fine adjustment modes without altering the traditional potentiometer structure, significantly improving the efficiency of potentiometer use in experiments. Simultaneously, it is of great significance for simplifying potentiometer wiring operations, optimizing adjustment precision control, and promoting the convenient improvement of related experimental equipment, thus better promoting the technological development of the field of mechanical and electronic integration and providing strong support for related experimental and production practices.

The application relates to the field of electric tools, and particularly discloses a torque adjusting mechanism and an electric tool, wherein the torque adjusting mechanism comprises a main body, a circuit board arranged on the main body, a potentiometer electrically connected with the circuit board, and an adjusting ring sleeved outside the main body and capable of rotating circumferentially outside the main body, wherein the triggering end of the potentiometer is sleeved with a linkage member, the outer wall surface of the linkage member is in abutment with the inner wall surface of the adjusting ring, the adjusting ring generates deformation by extruding the linkage member, the deformed linkage member and the triggering end form a rotating resistance, and the adjusting ring drives the triggering end to rotate under the torque of the rotating resistance, so as to adjust the resistance grade of the potentiometer. The application adopts the stepless adjusting mode of the potentiometer, can realize more accurate torque grading, the rotating linkage between the adjusting ring and the linkage member is realized in the mode of extrusion, the contact position of the adjusting ring and the linkage member does not need to be lubricated, and the problems of jamming and abnormal sound in the adjusting process do not exist.

This invention relates to a dual-channel audio control circuit, comprising a dual potentiometer circuit, a left channel driver circuit, a left channel output filter circuit, a right channel driver circuit, a right channel output filter circuit, a left channel speaker, and a right channel speaker. The dual potentiometer circuit receives and adjusts the dual-channel audio signals. The input terminal of the left channel driver circuit is connected to the left output terminal of the dual potentiometer circuit, and the input terminal of the right channel driver circuit is connected to the right output terminal of the dual potentiometer circuit. The left channel output filter circuit is connected between the left channel driver circuit and the left channel speaker, and the right channel output filter circuit is connected between the right channel driver circuit and the right channel speaker. This invention offers significant advantages in elevator voice systems, providing a more natural and immersive listening experience while meeting the requirements for high fidelity, flexible control, and system integration.

This utility model discloses a brush-type rocker potentiometer, comprising a body, an upper rocker arm, a lower rocker arm, a rocker, a support, a spring, a slider, a brush, a circuit board, and a fixed bracket. The rocker passes sequentially through the body, the upper rocker arm, and the lower rocker arm and is connected to the lower rocker arm. The lower end of the rocker has an axially oriented central hole. The cylindrical portion of the support is movably inserted into the central hole of the rocker, and the spring is installed inside the cylindrical portion, with its upper end abutting against the rocker. The fixed bracket is connected to the body, and the circuit board is mounted on the fixed bracket. The disc-shaped base of the support passes through the central hole of the circuit board and abuts against the fixed bracket. The swing portions of the upper and lower rocker arms are movably connected to the slider. The circuit board has a carbon film resistor, and the brush is mounted on the lower side of the slider, with the brush contacting and engaging with the carbon film resistor. The rocker and support of this utility model can stably and reliably perform tilting and repositioning operations, and the slider drives the brush to maintain stable and reliable sliding contact with the carbon film resistor.

The invention discloses a practical training system for simulating an electronic belt scale and a control method thereof in the field of practical training systems, and the system comprises a belt mechanism which comprises a belt and a driving device for driving the belt to rotate; the feeding mechanism is used for conveying materials to the belt; the belt is provided with a weighing area used for measuring the weight of materials. One end of the amplification mechanism is connected with the weighing area, and the other end is connected with the weight sensor; the state acquisition unit is used for acquiring the motion state quantity of rotation of the belt; the control unit comprises an input module and a control module; and the input module is also connected with a potentiometer. According to the practical training system for simulating the electronic belt scale, the weighing area is connected with the weight sensor through the amplification mechanism, materials with actual weight do not need to be placed on the belt, the overall size and weight of the system are reduced, the structure is simple, operation is convenient, training guidance and skill practical training work can be met, and the practical training efficiency is improved. And a support is provided for skill improvement of maintenance, technicians and operators.

The invention provides a new energy automobile electronic water valve calibration method, and relates to the technical field of new energy automobile thermal management. A valve element is driven to sequentially move to two mechanical limits in the opposite directions, limit reaching is judged according to the dual conditions that the motor current exceeds the threshold value and the potentiometer voltage is kept stable, and corresponding voltage is recorded; calculating an actual center voltage based on the recorded limit voltage, and combining the theoretical center voltage to obtain a voltage compensation amount; the compensation amount is stored in a nonvolatile memory; and when an angle request is received, the theoretical target voltage and the compensation amount are superposed to obtain actual target voltage, and the valve element is driven to reach the corresponding position. According to the method, through automatic calibration and compensation before delivery, the angle measurement error caused by potentiometer assembly deviation is effectively eliminated, the control precision and response speed of the electronic water valve are improved, repeated calibration of the whole vehicle end is avoided, the system reliability is improved, and the production cost is reduced.

This utility model relates to the field of fluid technology and discloses a servo valve testing system, including an inlet connector for connecting to the external control circuit of the servo valve; an outlet connector for connecting to the internal control interface of the servo valve; and a measuring unit integrated between the inlet and outlet connectors for testing the servo valve. The measuring unit includes a measuring component, a control component, and an offline feedback current analog potentiometer, which are connected to the inlet and outlet connectors. The advantages of this utility model are: the inlet and outlet connectors allow for connection to the servo valve, and the measuring unit enables the detection of faults in both the external wiring and the valve body, providing a comprehensive and convenient fault detection system, thus improving inspection efficiency.

The utility model provides an electronic musical instrument keyboard, including the face shell and bottom shell who butt joint into the casing, still include gyro wheel support structure, be located in the bottom shell inside, functional potentiometer, rotatable installation in gyro wheel support structure, cross section is semicircular functional gyro wheel, functional gyro wheel bottom direct surface sinks in the bottom shell inside, functional gyro wheel top stretches out the face shell upwards, functional gyro wheel center installation in functional potentiometer, gyro wheel reset spare, connect in gyro wheel support structure and functional gyro wheel between, reset buffer spare, be located in gyro wheel reset spare and gyro wheel support structure junction. The utility model provides electronic musical instrument keyboard under the diameter and rotation angle stroke limit optimization functional gyro wheel layout, realize MIDI keyboard thinning and portable, eliminate the larger rebound noise of shorter elastic arm in the limited space, satisfy individualized color selection while reducing the cost, realize assembly tolerance control, avoid partial deformation, warping in the assembly process, realize circuit board device integration module stacking and guarantee the plug assembly in place.

This utility model provides a dustproof and waterproof wired remote control, including a main body and a main control board. The main body includes an upper cover and a lower cover. The main control board is installed inside the main body and is equipped with a potentiometer. The knob of the potentiometer passes through the upper cover and its end is exposed outward. The knob of the potentiometer is fitted with a first sealing ring. The top surface of the first sealing ring abuts against the inner wall of the upper cover to achieve a seal between the upper cover and the potentiometer. The lower cover is equipped with a second sealing ring. The top surface of the second sealing ring abuts against the inner wall of the upper cover to achieve a seal between the upper cover and the lower cover, achieving a better sealing effect and ensuring that the remote control can be used normally in humid and dusty environments.

This invention discloses a high-precision adjustable voltage divider, belonging to the field of high-voltage electrical measurement technology. It includes a high-voltage arm body, a low-voltage precision resistor module, an adjustable potentiometer, and a housing. The high-voltage arm body is a series of high-resistance, medium-precision resistors, undertaking the main high-voltage voltage division. The low-voltage precision resistor module is connected in series at the end of the high-voltage arm for coarse adjustment to correct resistance deviations and improve basic accuracy. The adjustable potentiometer is connected in series or parallel to the low-voltage precision resistor module circuit, with its adjustment terminal exposed in the housing, for final precise calibration of the voltage division ratio. The high-voltage arm body and the low-voltage precision resistor module are integrally insulated and sealed, with only the adjustable potentiometer's adjustment terminal exposed, thus not affecting high-voltage insulation performance. This invention solves the problems of difficult accuracy control, lack of on-site fine-tuning, low production yield, and high calibration costs of traditional high-voltage dividers by using a three-stage resistance adjustment architecture of main body voltage division + precision module coarse adjustment + potentiometer fine adjustment, combined with flexible series and parallel adjustment methods. It can quickly calibrate the voltage division ratio to metrological-grade accuracy, is structurally safe, easy to debug, and highly versatile, suitable for DC, AC, and RC high-voltage dividers.

The utility model discloses an angle electromagnetic induction formula rocker potentiometer, including base, sliding disc, rocker, lower rocker arm, upper rocker arm, iron shell, first potentiometer subassembly and second potentiometer subassembly, wherein: the end of lower rocker arm swing axle of lower rocker arm one end is equipped with first permanent magnet, and the midpoint of first permanent magnet is located above the axis of lower rocker arm swing axle, and first potentiometer subassembly includes first circuit board, and is equipped with first angle sensor chip on first circuit board, and the position of first angle sensor chip is opposite with first permanent magnet, the end of upper rocker arm swing axle of upper rocker arm one end is equipped with second permanent magnet, and the midpoint of second permanent magnet is located above the axis of upper rocker arm swing axle, and second potentiometer subassembly includes second circuit board, and is equipped with second angle sensor chip on second circuit board, and the position of second angle sensor chip is opposite with second permanent magnet, the utility model discloses high precision, is not easy to be influenced by outside magnetic field interference.

The application discloses a speed regulating structure of an electric tool, which comprises a shell composed of a first shell and a second shell, a potentiometer arranged in the first shell, and at least two gear touch columns arranged in the second shell, wherein the potentiometer can control the rotating speed of a motor of the electric tool; a speed regulating knob is rotatably arranged on one side of the potentiometer and is provided with a sensing structure on the other side, wherein the sensing structure can be contacted with the gear touch columns by rotating the speed regulating knob; during the rotation of the speed regulating knob, the rotating speed of the motor of the electric tool can be controlled by the potentiometer; when the speed regulating knob is rotated to different preset gears, the sensing structure can contact different gear touch columns and generate a limiting feedback force.

This utility model provides a steering device for a crystal surface maintenance robot handle, including a handle frame, a rotating shaft, a potentiometer, a coupling, a horizontal shaft, and a tension spring. The upper end of the rotating shaft is connected to the handle frame, and the lower end of the rotating shaft is rotatably disposed inside the base. The potentiometer is fixed inside the base. The two ends of the coupling are respectively connected to the lower end of the rotating shaft and the potentiometer. The horizontal shaft passes through the rotating shaft. The tension spring connects the two ends of the rotating shaft to the base. Through the tension spring, the handle frame and the rotating shaft can automatically reset after the operator releases the rotation force.

This utility model relates to a fully automatic potentiometer testing fixture, which includes: a fixture base, a test cylinder support plate, and a test cylinder fixing plate. The test cylinder support plate is mounted on the fixture base, and the test cylinder fixing plate is positioned between the test cylinder support plates. A test cylinder is mounted on the test cylinder fixing plate, and the test cylinder is connected to an upper mold fixing plate via a telescopic rod. A guide post is movably fitted into the positioning hole of the upper mold fixing plate, and the upper mold fixing plate is connected to an upper template via the support post. A carrier plate is mounted on the fixture base of the upper template, and a potentiometer fixing plate is mounted on the carrier plate. Driven by the test cylinder, the upper mold fixing plate moves the upper template up and down. A micro servo motor drives the needle mold module to slide back and forth on a slide rail, testing the potentiometer mounted on the potentiometer fixing plate on the carrier plate, thus improving testing efficiency. Furthermore, the overall structure is simple and easy to operate, reducing the difficulty and increasing efficiency for operators testing potentiometers.

This utility model relates to a multi-purpose medical irrigation and drainage device, comprising an irrigation and drainage device body, a power unit, a large power component, and a small power component. The irrigation and drainage device body includes a shell, an irrigation tube, a drainage tube, a power pump tube, a rotary switch, a potentiometer, a control line, and a control plug. The irrigation tube and drainage tube are fixed inside the shell. One interface of the irrigation tube is connected to one interface of the power pump tube, which is connected to the power unit. The rotary switch and potentiometer are both located inside the shell and are respectively connected to one end of the control line. The other end of the control line is connected to the control plug, which is electrically connected to the power unit. The large power component includes a large power irrigation tube and a large power nozzle detachably connected to the irrigation tube. The small power component includes a small power irrigation tube and a small power nozzle detachably connected to the irrigation tube. This application allows for the replacement of different sizes of power nozzles according to different clinical needs. The power unit can smoothly switch between large and small power, achieving stepless speed regulation control and compatibility with various application scenarios.

Provided is a household gas pipeline valve closed state monitoring alarm device, comprising a capacitive sensor for detecting the communication position and the disconnected position of the gas pipeline valve, the output end of the capacitive sensor being connected to the same-phase input end of a voltage comparator through an RC charging / discharging circuit, and the output end of an adjustable potentiometer being connected to the reverse input end of the voltage comparator, one output end of the voltage comparator being connected to one end of a pull-up resistor and the other end of the pull-up resistor being connected to a power supply, the other output end of the voltage comparator being connected to the input end of a triode switching circuit, and the output end of the triode switching circuit being connected to an alarm loop. The utility model solves the problem of gas safety accidents caused by gas leakage due to forgetting to close or not closing the gas valve, adjusts the circuit power supply state and voltage comparison parameters according to the actual use scene, and adapts to the monitoring requirements of different household gas pipeline valves.

A pitch feedback mechanism, the pitch feedback mechanism includes support, two guide rods, slider, transmission sprocket assembly, tension sprocket assembly, support sprocket assembly and roller assembly, the support includes two vertical frame and horizontal frame, two vertical frame bottom between being provided with horizontal frame;Two guide rods are arranged side by side between the two vertical frames, the slider is slidably connected with the two guide rods, the top of the slider is connected with the bottom of the feedback ring;Push-pull rod is arranged on the side of the feedback ring, a group of roller assemblies are arranged on the front and back sides of the feedback ring respectively, the roller assemblies are connected with the slider, the bottom of the slider is connected with the top of the chain card, and the chain card is engaged with the chain.The pitch potentiometer and the pitch scale plate of the design pitch feedback mechanism can indicate the pitch angle mechanical displacement in real time, and the pitch angle electrical signal is fed back synchronously, so that the pitch closed-loop control is realized.

A circular, plastic-encapsulated, large-angle rotating variable potentiometer ensures reliable contact between the brush and the housing and carbon plate while providing a wider mechanical rotation range. A metal stop is used to enhance the stopping strength, solving the problem of insufficient stopping strength caused by the original plastic stop structure and the reduced stop size after the mechanical rotation range is increased. It includes: a housing (1), a bracket (2), a rotating shaft (3), a stop plate (4), a brush (5), a carbon plate (6), terminals (7), and a spring (8). The carbon plate terminals are riveted together and then encapsulated to form a housing with a circular inner cavity and a rectangular outer cover. The stop plate and rotating shaft are integrally molded with plastic, and the encapsulated stop plate serves as the stopping structure. The brush and rotating shaft are fixed together by the riveting structure and placed inside the housing, then the spring is placed, and finally the bracket is installed. The brush contacts the carbon plate, and the rotation of the rotating shaft drives the brush to rotate, thereby adjusting the resistance value of the variable potentiometer.

This invention discloses a ball screw bearing retaining ring assembly and inspection device, comprising: a track with a first groove for supporting the ball screw bearing and passing through each station; a feeder and a receiving machine; a concentricity testing machine that uses two pen-type displacement sensors to detect the first concentricity of the threaded portion at the upper end of the ball screw bearing and the second concentricity of the circle formed by the three shafts at the bottom; a retaining ring assembly machine that uses a pneumatic gripper to pick up the retaining ring and pre-assemble it onto the upper end of the ball screw bearing at the retaining ring assembly station; a retaining ring press-fit inspection machine that uses a potentiometer to detect the downward movement distance of the floating sleeve; three side-push rejecting machines; and a material handling robot, located on one side of the track, for moving the ball screw bearing from the previous station to the next station. This invention can assemble retaining rings, detect whether the retaining rings are installed correctly, detect the concentricity of the threaded portion and the concentricity of the three shafts at the bottom, and reject defective products, thus improving assembly and inspection efficiency.

The present application relates to the field of potentiometer testing, in particular to a linear potentiometer double-channel precision detection device and detection method, the device comprising an electrical box, a motion simulation assembly, a tooling assembly and a data acquisition and control module, the motion simulation assembly being arranged on the front side of the electrical box, the motion simulation assembly comprising a pivot, a sliding rail block, a ball screw and a ball slide. The pivot is rotatably connected to the electrical box, allowing the entire motion simulation assembly to rotate about the pivot; the sliding rail block is fixed to the front end of the pivot; the ball screw is driven by a servo motor and rotates through the sliding rail block; the ball slide is threadedly connected to the ball screw and slidingly connected to the sliding rail block, allowing it to move linearly back and forth along the sliding rail block under the drive of the screw. The tooling assembly is mounted on the ball slide and used to clamp and fix the linear potentiometer to be tested. The electrical box is internally provided with a data acquisition module and a control module, which are used to acquire data and control the device. The device is provided with a rotatable motion simulation assembly, the installation position of the linear potentiometer can be adjusted at an angle of 0-90°, covering various installation scenarios in nuclear power sites, and the detection results are closer to the actual working conditions.

The utility model discloses a kind of simulation reference device and intelligent constant potential instrument simulation test system, the simulation reference device includes adjustable potentiometer, anode binding post, cathode binding post and reference binding post set on pedestal, anode binding post is connected with the input end of adjustable potentiometer, cathode binding post is connected with the ground end of adjustable potentiometer, reference binding post is connected with the adjustable end of adjustable potentiometer.In the intelligent constant potential instrument simulation test system, load, ammeter and intelligent constant potential instrument are accessed by multiple wires, the simulation reference device uses Ohm's law voltage division principle voltage division simulation reference electrode, and based on the reverse correlation characteristics of adjustable potentiometer resistance value and output potential (the more negative corresponding current is greater for potential), realize the dynamic simulation test of current output adjustment caused by the electrochemical reaction process change of external reference in cathodic protection system of intelligent constant potential instrument, compare by with ammeter current value, determine whether the tested intelligent constant potential instrument is qualified.