114results about "Converting sensor output mechanically" patented technology

A hydraulic motor output shaft vibration detection device disclosed by the present invention is characterized in that a limiting piece and a driving piece are sequentially installed in a detection box from top to bottom, a memory pointer is installed on the limiting piece, a main pointer is installed on the driving piece, and a contact rod is installed at the lower end of the detection box in an up-down sliding manner; the upper end of the contact rod extends into the detection box and is connected with the driving part, a limiting structure used for limiting the limiting part is installed in the detection box, an unlocking part is installed on the surface of the rear side of the detection box, and the limiting structure is in sliding connection with the unlocking part. The memory pointer is connected with the limiting structure through the limiting piece, the main pointer can detect the corresponding amplitude when the output shaft of the hydraulic motor rotates in real time, the memory pointer can record the maximum amplitude when the output shaft of the hydraulic motor rotates, instant recording of the amplitude is facilitated, and a recorder can clearly see the current vibration value and the maximum peak value at a glance.

A steering rod for a steer-by-wire steering system is disclosed. The steering rod is designed to move in the axial direction over a distance S. The steering rod includes a first target lane with first conductive segments. Gaps exist between the first segments such that the first segments and gaps form a first pattern along the first target lane which repeats itself with a first period length p1. The steering rod includes a second target lane with second conductive segments. Gaps exist between the second segments such that the second segments and gaps along the second target lane form a second pattern that repeats with a second period length p2. The period lengths p1 and p2 are selected such that the least common multiple of the period lengths p1 and p2 is greater than or equal to the distance S.

A skew sensing apparatus for detecting skew in at least one, or a plurality of control surfaces of a vehicle. The apparatus includes a tension cord which is held under tension between a) a first spring associated with a sensor and a sensor target and b) an opposing second spring. During normal operation, the apparatus is configured to maintain said sensor target in a first position relative to said sensor, thereby indicating said normal operation. During an abnormal operation, the apparatus is configured to shunt said tension cord such that said sensor target is translated to a second position, relative to said sensor thereby indicating said abnormal status.

An electromechanical actuator including an electric motor housed in a housing, the electric motor acting on a torque output element capable of being coupled to an element of a transmission gearbox of a motor vehicle. The torque output element is connected to the electric motor by drive means, and the torque output element is a main shaft configured to rotate about its axis of rotation with a first end and a second end. The actuator further includes a circuit board located in the housing, the circuit board comprises a sensor which faces a magnet mounted on a support coupled to the second end of the main shaft by means of a first swivel-linear mechanism.

An electronic device includes a first housing, a second housing slidably coupled to the first housing, a rollable display configured to be enlarged or reduced based on a movement of the second housing, a rack gear disposed on the second housing, a pinion gear driven in engagement with the rack gear and including a plurality of teeth, an actuator configured to rotate the pinion gear and coupled with the pinion gear by a shaft, a first magnet surrounding at least part of the shaft, and spaced apart from the pinion gear along the shaft, and a hall sensor spaced apart from the pinion gear in direction perpendicular to the shaft, and a processor, wherein the processor is configured to obtain data related to a change in the magnetic force using the hall sensor and identify a rotating angle of the pinion gear based on the data related to a change in the magnetic force.

The invention belongs to the technical field of aircraft assembly, and discloses an aircraft front wheel turning angle monitoring device and method, and the device comprises a mechanical sensing module, a signal processing module and a signal receiving device. The mechanical sensing module is detachably mounted on a shock strut of a nose landing gear of an aircraft, and the rotary motion of the shock strut is converted into a linear displacement signal through a gear transmission mechanism in the mechanical sensing module; the signal processing module analyzes the displacement signal into a front wheel turning angle electric signal; and the signal receiving device receives and displays the angle value. The invention further discloses a corresponding monitoring method. The device adopts a modular and non-invasive design, solves the problems that the turning angle of the front wheel cannot be monitored in real time and the over-limit risk exists in the aircraft traction process, has the advantages of being convenient and fast to install, accurate in measurement and wide in applicability, and remarkably improves the safety and the working efficiency of flight guarantee.

The invention discloses a driving all-in-one machine and an output shaft multi-turn absolute position detection method thereof, and realizes accurate quantization of a multi-stage coding system state by obtaining a detection value of each stage of coding shaft and decomposing the detection value into a turn value and an in-turn remainder value based on a transmission ratio. A mapping relation from an upper first-level coding axis to a lower first-level coding axis is established according to the transmission ratio, and a mapping value is obtained after dimensions are unified, so that a comparable basis of upper-level coding data and lower-level coding data is established. By obtaining the difference value between the mapping value and the corresponding inner remainder value of the lower first-level coding shaft ring and comparing the difference value with the half-ring threshold value, the phenomenon of zero crossing point asynchronization caused by the gear clearance can be accurately identified. Dynamic compensation is carried out on the number of turns of the next first-level coding shaft based on a difference value comparison result, and reading deviation caused by the mechanical back clearance is effectively corrected. Finally, the multi-turn absolute position of the output shaft is synthesized based on the compensated number of turns of the coding shafts, so that the continuity and accuracy of position calculation are ensured, and position calculation errors caused by gear gaps are avoided.

Device (10) for detecting the position of, or the forces applied to, an object, comprising at least one contact element (11) associated with a sensor (12) housed inside a waterproofing casing (19); the contact element (11) is mobile between at least a first rest position and at least a second operating position, and vice versa, and is configured to transmit motion to the sensor (12) indirectly through the use of one or more magnetic elements (13, 15, 17, 32, 33) or by means of a direct connection with the sensor (12).

A fault detection method, apparatus, and system, and a vehicle, which relates to the field of vehicle control technology. The method includes: acquiring a first signal output by the valve core detection sensor and a second signal output by the draw-wire encoder on each of the plurality of support legs; and determining whether the draw-wire encoder provided on each support leg has a fault according to the first signal, and the second signal output by the draw-wire encoder of each support leg. For the fault detection method, apparatus and system, and the vehicle, it can be used for the solution of detecting whether the draw-wire encoder on the work machine is damaged in real-time, so as to improve the reliability and security of the device.

The present invention relates to an electromechanical actuator (1) comprising an electric motor (2) acting on a torque output element (6) able to be coupled to a movable member of a vehicle gearbox, wherein the torque output element (6) is configured to rotate about its axis of rotation between a first end position and a second end position defining an actuation range, the torque output element (6) being connected to the electric motor (2) by drive means (4, 5) which comprise a first gear (4) and a second gear (5), the actuator (1) further comprising a circuit board (10). The circuit board (10) comprises two sensors (12, 13) which each face a magnet (41, 51) associated with each gear (4, 5) in order to detect the angular position of each gear (4, 5). The two gears (4, 5) have a different number of teeth corresponding to the number of turns required for the torque output member (6) to cover the actuation range.

The utility model discloses a kind of elevator door opening and closing time and speed measuring device, including measurement terminal, speed measurement module and support. Measurement terminal includes shell, encoder socket and button trigger switch, encoder socket and button trigger switch are all set on shell, button trigger switch is used to press elevator door opening and closing button;Speed measurement module includes sucking disc, sucking disc lock catch, gyro wheel and rotary encoder, sucking disc lock catch is set on sucking disc, gyro wheel is coaxially connected with rotary encoder, and rotary encoder is electrically connected with encoder socket;Support is connected by multiple support arms one by one, the first end of support is movably connected with sucking disc, and the second end of support is provided with gyro wheel and rotary encoder. Can improve elevator door opening time, door closing time measurement accuracy, the running speed of car door in the process of elevator door opening and closing is continuously recorded by gyro wheel and rotary encoder. It is convenient to operate, and measurement precision is high, improve elevator installation debugging and detection efficiency.

The utility model provides a telemetering terminal with a vibrating wire interface, which comprises a telemetering terminal body, a master control circuit is arranged in the telemetering terminal body, the vibrating wire interface is arranged at the top of the telemetering terminal body, and a pre-amplification circuit, a filter circuit, a vibration pickup circuit, a vibrating wire circuit, a microcontroller and a vibration excitation circuit are arranged on the master control circuit. The vibrating wire interface is connected with the input end of the pre-amplification circuit, the output end of the pre-amplification circuit is connected with the input end of the filter circuit, the output end of the filter circuit is connected with the input end of the vibration pick-up circuit, the output end of the vibration pick-up circuit is connected with the input end of the vibrating wire circuit, and the input end of the vibrating wire circuit is connected with the input end of the microcontroller. The output end of the microcontroller is connected with the input end of the excitation circuit, the output end of the excitation circuit is connected with the vibrating wire interface, and the problem that the vibrating wire sensor cannot be adapted in the prior art is solved.

The invention relates to a steering lever (10) for a steer-by-wire system, the steering lever (10) being configured to move in an axial direction over a distance S. The steering lever (10) comprises a first target track (12) having first electrically conductive segments (24), with a gap (28) between the first segments (24), the steering lever (10) includes a first target track (12) having first electrically conductive segments (24) with gaps (28) therebetween such that the first segments (24) and gaps (28) form a first pattern repeating with a first cycle length p1 along the first target track (12), the steering lever (10) includes a second target track (14) having second electrically conductive segments (26) with gaps (28) therebetween such that the second segments (26) and gaps (28) form a second pattern repeating with a second cycle length p2 along the second target track (14), the period lengths p1 and p2 are selected such that the least common multiple of the period lengths p1 and p2 is greater than or equal to the distance S.

A ball joint contains a body and a pin having a first threaded end and a second spherical end which is rotatably arranged within a seat of the body. The pin cooperates with a first spherical-cap-shaped element inserted within a further seat having a corresponding shape of a second spherical-cap-shaped element cooperating with a covering element to close the spherical end of the pin within the body. The second spherical end of the pin and the first and second spherical-cap-shaped elements include pairs of recesses and ridges in the contact areas for reciprocally compenetrating, the pairs of recesses and ridges being arranged at 90° to each other to allow rotation of the pin along all axes in the body. An angular movement sensor integral with the body of the joint cooperates with the second spherical-cap-shaped element to detect rotation of the pin.

An example rotary actuator includes: a housing having a cavity therein; an output shaft disposed in the cavity and configured to rotate within the housing upon providing fluid flow within the housing; a cam coupled to the output shaft and configured to rotate therewith; and a rotary′ sensor mounted to the housing, wherein the rotary′ sensor interacts with the cam such that the rotary sensor provides sensor information indicating a rotary′ position of the cam and the output shaft.

To provide an absolute encoder capable of achieving reduction in a size in a simple configuration.SOLUTION: An absolute encoder comprises: a main shaft gear that rotates with a main shaft; a first magnet that rotates with the main shaft; a first magnetic sensor that detects a change in a magnetic flux generated from the first magnet; an idle gear that has a smaller number of teeth than the number of teeth of the main shaft gear and that rotates according to the rotation of the main shaft gear; a first secondary shaft disposed parallel to the main shaft; a first driven gear that is attached to the first secondary shaft and that meshes with the idle gear; a second magnet that rotates with the first secondary shaft; a second magnetic sensor that detects a change in a magnetic flux generated from the second magnet; a second secondary shaft disposed parallel to the main shaft; a second driven gear that is attached to the second secondary shaft, that has a different number of teeth from the number of teeth of the first driven gear, and that meshes with the idle gear; a third magnet that rotates with the second secondary shaft; and a third magnetic sensor that detects a change in a magnetic flux generated from the third magnet.SELECTED DRAWING: Figure 2

The invention provides an oil level gauge, a transformer and a transformer oil level value calculation method.The oil level gauge comprises a shell, a floater assembly, a transmission assembly, a measuring module and a calculation module, a floating part of the floater assembly can move along with changes of the oil surface, and the floating part comprises a meshing part; the transmission assembly comprises a driven part meshed with the meshing part, and the meshing part can drive the driven part of the transmission assembly to rotate in response to movement of the floating part in the vertical direction; a displacement measuring part of the measuring module is used for detecting the actual displacement of the floating part moving in the vertical direction, and an angle measuring part is used for detecting the actual rotation angle of the driven part. When large abrasion exists between the meshing part and the driven part, the calculation module can solve the problem that the oil level value is not accurately calculated due to transmission ratio drifting caused by abrasion through compensation calculation, and according to the scheme, the current oil level value is determined by calculating parameters such as the meshed theoretical rotation angle and the current rotation angle of the driven part after displacement compensation.

An encoder includes a driven wheel, a housing, a carrier, a magnetic spur gear and a magnet. The driven wheel includes a first shaft bushing and a second shaft bushing. The housing includes a first shaft hole. The carrier includes a second shaft hole. The driven wheel is clamped between the housing and the carrier. The first shaft bushing is disposed within the first shaft hole. The second shaft bushing is disposed within the second shaft hole. The magnetic spur gear is installed on the driven wheel and synchronously rotated with the driven wheel. The magnet is located outside the magnetic spur gear and not contacted with the magnetic spur gear. When the driven wheel is rotated, a change of a magnetic attraction force between the magnetic spur gear and the magnet provides intermittent rotational resistance to the magnetic spur gear.

Systems and methods including a servo comprising a gearbox, a servo output, a first encoder, a first encoder input, a second encoder, and a second encoder input. The servo output can be positioned on an output side of the gearbox. The first encoder and the second encoder may be positioned on a board side of the gearbox. The first encoder input and the second encoder input may be configured to communicate with the first encoder and the second encoder respectively. The first encoder input may be mechanically coupled to the gearbox. The second encoder input may be mechanically coupled to the first encoder input. The output side of the gearbox may be opposite the board side of the gearbox.

The invention provides a steer-by-wire assembly, a method and an absolute position sensor for a vehicle. The steer-by-wire assembly includes a first motor having a stator and a rotor; a screw actuator configured to engage with the threaded portion of the steering shaft and to move the steering shaft longitudinally when the screw actuator is rotated; and a rotor carrying sleeve coupled between the first rotor and the screw actuator and configured to rotate about a longitudinal axis of the steering shaft. The assembly further includes: a first rotational position target disposed about the rotor-carrying sleeve, where a position of the first rotational position target corresponds to a unique position of the steering shaft; and a first rotational position sensor configured to detect a movement of the first rotational position target and transmit a sensor signal to the controller.

The present invention relates to a steering actuator and to a method for a steer-by-wire system for determining a position of a lifting rod for steering purposes. The steering actuator includes a measuring gearing having a first axis of rotation, a second axis of rotation, and a third axis of rotation. The steering actuator also includes a first sensor for ascertaining a first position of the first axis of rotation, a second sensor for ascertaining a second position of the second axis of rotation, and a third sensor for ascertaining a third position of the third axis of rotation. The steering actuator further includes a control unit for receiving the first position, the second position and the third position. The control unit is configured to calculate a first, second, and third vernier function and to operate the steering actuator.

A position sensor (1), comprising: a magnetic sensor (3); a plurality of magnets (2) which are moved in a first direction (X) relative to the magnetic sensor (3), wherein one or some of the magnets (2) are arranged in a first track (5A) and the remaining magnets (2) are arranged in a second track (5B), wherein the magnetic sensor (3) includes: a first magnetic field detection element (9A) arranged in the first track (5A), a first processor (4A) that outputs a voltage VM1 when a rotation angle of a first magnetic field applied to the first magnetic field detection element (9A) is less than a first threshold (S21), and that outputs a predetermined high voltage VH when the rotation angle of the first magnetic field is equal to or greater than the first threshold (S21), wherein the voltage VM1 is a voltage between a predetermined low voltage VL and the high voltage VH and indicates positions of the magnets (2) relative to the first magnetic field detection element (9A); a second magnetic field detection element (9B) arranged in the second track (5B); and a second processor (4B) that outputs the low voltage VL when a rotation angle of a second magnetic field applied to the second magnetic field detection element (9B) is less than a second threshold (S22), and that outputs a voltage VM2 when the rotation angle of the second magnetic field is equal to or greater than the second threshold (S22), wherein the voltage VM2 is a voltage between the low voltage VL and the high voltage VH and indicates positions of the magnets (2) relative to the second magnetic field detection element (9B).

Stroke sensor 3 for detecting a position of moving object 2 that moves linearly has: magnetic field generator 11; support member 7 that supports magnetic field generator 11; and magnetic field detecting element 14 that detects a magnetic field that is generated by magnetic field generator 11. Support member 7 converts a linear movement of moving object 2 relative to magnetic field detecting element 14 to a rotational movement of magnetic field generator 11 relative to magnetic field detecting element 14. Magnetic field generator 11 moves rotationally in a rotational movement range having two ends, and a one-to-one correspondence is realized between a rotation angle of magnetic field generator 11 and a position of moving object 2 within a region of the rotational movement range that excludes at least the two ends.

The utility model discloses an encoder, and relates to the field of encoders, and the encoder comprises a housing assembly, a rotating wheel which is comparably installed in the housing assembly, and an elastic damping mechanism which abuts against and cooperates with the rotating wheel. Wherein the shell assembly is composed of a base and a cover plate, and a mounting groove used for mounting the rotating wheel and the elastic resistance mechanism is formed in the base; the outer circumferential face of the rotating wheel is provided with an annular wave-shaped meshing interface, the wave-shaped meshing interface is continuously formed by protruding units which are arranged at equal-angle intervals, and the adjacent protruding units are matched to form a V-shaped groove. According to the encoder, rigid contact is converted into a flexible contact mechanism of the elastic balls, so that the interface abrasion rate is reduced while the tactile feedback precision is maintained, and the stable mechanical property of the encoder can be maintained in a ten million operation period.

The utility model relates to the technical field of rotary encoders, and discloses a noise reduction type rotary encoder, which comprises an encoding shaft, a seat module, a knob module, a gasket and a silica gel ring, one end of the encoding shaft is assembled with the seat module, the other end of the encoding shaft is movably assembled with the knob module, and the knob module is rotationally arranged relative to the seat module under the action of driving force; the base module comprises an inner base shell and a supporting base shell, the inner base shell is used for being assembled with the sighting telescope body, the supporting base shell is provided with a supporting shell face, the gasket and the supporting shell face are overlapped, the knob module abuts against the gasket, the silica gel ring is located between the coding shaft and the supporting base shell, and the coding shaft and the supporting base shell abut against the silica gel ring. The gasket plays a role in isolation, avoids direct friction between parts, blocks sound conduction and reduces rotation noise, meanwhile, the silica gel ring reduces oscillation conduction between the parts, the waterproof performance of the structure is improved, sound generated when the rotary encoder is used is reduced, the effect of reducing the sound is achieved, and the service life of the rotary encoder is prolonged.

The utility model provides an integrated gate position and limit collection device, including the gate board that is internally provided with the door plant, the one side of gate board is provided with the connecting plate, and the connecting plate is fixedly connected with the door plant, the surface of gate board is equipped with the clamping groove, and the connecting block is fixed in the clamping groove, and the connecting block rotationally connects with the right angle gear no.

The application provides an integrated gate position and limit acquisition method and device, which converts linear motion of a gate into rotation of a gear through accurate transmission ratio between gears, and then amplifies or reduces tiny displacement change, thereby improving sensitivity and accuracy of gate position monitoring, and solving the problem of low accuracy of traditional devices. According to height of the gate and actual requirements, the position is adjusted, the application combines a traditional gate position meter and a limit switch to form an integrated device, variable ratio gears, PLC and a resistance strain type linear displacement sensor work cooperatively to realize omnibearing and high-precision monitoring and control of the gate position, the integrated design not only reduces the size and complexity of the device, but also improves stability and reliability of the device by optimizing connection and communication between parts, and in terms of installation, the integrated design makes the overall structure of the device more compact, and reduces installation steps and required space.

The utility model discloses a split type synchronous transmission mechanism which comprises a gear assembly, a driving shaft, a transmission wheel belt assembly and a driven shaft, the driving shaft is composed of a positioning shaft and a split shaft, the positioning shaft and the split shaft are coaxially arranged, one end of the positioning shaft and one end of the split shaft are detachably connected together, and the other end of the split shaft is detachably connected with the gear assembly. The other end of the positioning shaft can be connected into a motor through a gear assembly, the other end of the split shaft can indirectly drive the encoder to operate through a transmission wheel belt assembly, a driven shaft and a mechano-electronic cam box, and installation and maintenance are very convenient.

Drive unit, comprising: a motor shaft, the motor shaft being arranged to rotate; a main gear, the main gear being adapted to rotate coaxially with the motor shaft; a main gear magnet attached to the main gear; a sub-gear, the sub-gear being adapted to rotate together with the main gear; a secondary gear magnet attached to the secondary gear; a main gear rotation detection sensor, wherein the main gear rotation detection sensor is configured to detect a rotation of the main gear based on a change in a magnetic field of the main gear magnet; and a sub-gear rotation detection sensor, wherein the sub-gear rotation detection sensor is configured to detect rotation of the sub-gear based on a change in a magnetic field of the sub-gear magnet.