159results 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.

According to the integrated gate position and limit acquisition method and device, linear motion of the gate is converted into rotation of the gears through the accurate transmission ratio between the gears, then tiny displacement changes are amplified or reduced, the sensitivity and accuracy of gate position monitoring are improved, and the problem that a traditional device is not high in precision is solved. The position of the gate is adjusted according to the height and actual requirements of the gate, a traditional gate level meter and a limiting switch are combined to form an integrated device, the transformation ratio gear, the PLC and the resistance strain type linear displacement sensor work cooperatively, all-directional and high-precision monitoring and control over the position of the gate are achieved, and the safety of the gate is improved. The integrated design not only reduces the size and complexity of the device, but also improves the stability and reliability of the device by optimizing the connection and communication among the parts, and in the aspect of installation, the integrated design enables the overall structure of the device to be more compact, and reduces the installation steps and required space.

To reduce the influence of backlash in a reduction mechanism on detection accuracy. An absolute encoder includes a first worm gear portion rotating according to rotation of a main shaft and a first worm wheel portion meshing with the first worm gear portion. The absolute encoder is provided coaxially with the first worm wheel portion and includes a second worm gear portion rotating according to rotation of the first worm wheel portion and a second worm wheel portion meshing with the second worm gear portion. The absolute encoder also includes a biasing mechanism biasing the second worm gear portion in the direction of the second worm wheel portion.

A control method is for a braking system that includes an electronically controlled mechanical brake with a first motor and a second motor. The method includes detecting a pedal stroke and determining a total required braking torque based on a pedal stroke / total braking torque curve, distributing the total braking torque to the first motor and the second motor to determine a target torque for the first motor and a target torque for the second motor, and driving the first motor and the second motor to operate based on the target torques. The method further includes monitoring an operating current and a rotational speed of the first motor and the second motor, and using motor characteristic curves of the first motor and the second motor to calculate a first computed output torque and a second computed output torque.

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.

An electronic device, including a substrate, a package component, a first sensor chip, and a second sensor chip, is provided. The substrate has an inner space and a first through hole communicated with the inner space. The package component is disposed on the substrate and forms a front chamber and a back chamber together with the substrate. The package component has an opening. The front chamber is communicated with an outside air by the opening. The inner space constitutes at least part of the back chamber, and the back chamber is communicated with the front chamber by the first through hole. The first sensor chip is disposed on the substrate and covers the first through hole to separate an airflow in the front chamber and an airflow in the back chamber. The second sensor chip is disposed on the substrate and located in the back chamber.

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.

To provide a linear actuator device, a magnetic sensor system, and a method of use for detecting the position of a component driven by a mechanism rotatable in a linear direction.SOLUTION: A magnetic sensing device comprising a multi-turn (MT) sensor and a single turn (ST) sensor is provided within the same semiconductor package and placed in the vicinity of a rotatable mechanism. A magnet is mounted on the rotatable mechanism, such that, as the mechanism rotates, a magnetic field is generated. The MT sensor measures the number of turns of the rotating magnetic field, which is translated to the number of turns of the mechanism. The ST sensor measures the angle of the rotating magnetic field, which is translated to an angular position of the mechanism. As each turn of the mechanism is translated to a specific amount of linear motion, the amount by which the rotational mechanism has turned is proportional to the distance travelled by the driven component, and thus indicative of a linear position. Therefore, by placing a magnet and the magnetic sensing device in relation to the rotatable mechanism, with the multi-turn sensor providing the number of turns and the angle sensor providing the precise angular position within each turn, the measured rotational position can be translated to a corresponding linear position of the element being moved linearly as a result of the rotation.SELECTED DRAWING: Figure 1

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).

To provide a physical quantity detection device with improved detection accuracy and a reduced body size.SOLUTION: A first sensor 10 comprises: a metal target 11 on a shaft member 1 that rotates in conjunction with a steering wheel; and an excitation detection coil 13 provided on the car body side, wherein the first sensor outputs a signal according to a rotation angle of the shaft member 1 using a principle of electromagnetic induction. A main gear 2 is installed in the shaft member 1 and a sub gear 3 engages with the main gear 2. A second sensor 20 outputs a signal according to the rotation angle of the sub gear 3. If difference between a steering angle calculated from a signal of the first sensor 10 and a steering angle calculated from the signal of the second sensor 20 is greater than a predetermined threshold value, an electronic control unit 4 corrects the steering angle calculated from the signal of the first sensor 10 to bring it closer to the steering angle calculated from the signal of the second sensor 20, and detects a true steering angle for the steering wheel.SELECTED DRAWING: Figure 1

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.

To provide a mechanical position indicator with a visibly well-defined actuation range, and an actuator of automation technology comprising such a mechanical position indicator.SOLUTION: A mechanical position indicator 100 for representing an actuation state of an actuator of automation technology includes an indicating element 110 for representing an actuation state, where the actuation state is represented by a linear position of the indicating element 110. The linear position of the indicating element has a first limit and an opposite second limit, and the first limit is fixed. The mechanical position indicator 100 has a slidable mask at least partially surrounding the indicating element 110 in a cross section, and the mask is set up to indicate a position of the second limit.SELECTED DRAWING: Figure 1

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

A measurement system and method of manufacture can include: a magnet mounted on a rotatable shaft; a first magnetic sensing device for detecting a first magnetic field from the magnet, the first magnetic sensing device comprising: an angle sensor configured to detect an orientation of the first magnetic field and a magnetic multi-turn sensor configured to detect a number of turns of the first magnetic field; and a second magnetic sensing device comprising a magnetic target mounted on the rotatable shaft and an incremental sensor configured to detect a second magnetic field, the magnetic target comprises a track for inducing a change in the second magnetic field.

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.

The invention is concerned with a mechanical position indicator (100) comprising: an indicating element for representing (110); an indicator gear set (120) for driving said indicating element, wherein said indicator gear set comprises an input (121) and an output (122); a motion transmitter (130) for transmitting a motion of said indicator gear set to said indicating element being mechanically connected to the indicating element and releasably connected to the indicator gear set; a fixation mechanism (160) especially for fixing the indicator gear set with said output of said actuator, characterized in that said fixation mechanism comprises a hollow connection shaft (161) with a shaft wall (161.2) and a shaft axis (161.1), with at least one radial pass (161.21) through said shaft wall; at least one radially acting friction device (162) situated in a corresponding pass; at least one axially acting force delivery device (163) situated inside the hollow connection shaft.

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 relates to a position sensing device (10) for determining a rotational position of a rotating shaft (12) of a remotely operated vehicle of a system (1) for storing and retrieving goods holders, said rotating shaft (12) being a wheel axle of the remotely operated vehicle. The device comprises a reflector (14) attached to the rotating shaft so as to rotate simultaneously with said shaft (12), a distance measuring unit (16) arranged to emit a beam (18) of radiation towards a portion of the reflector (14), wherein the emitted beam is parallel to the rotating shaft, as the shaft (12) and the reflector (14) are rotated with respect to the distance measuring unit (16), and to receive a return beam (20) generated when the emitted beam (18) is reflected by the portion of the reflector (14). The distance measuring unit (16) is configured to output a signal based on a distance of said beam to said portion of the reflector (14), wherein a rotational position of the rotating shaft (12) is determined based on the output signal of measured distance from said distance measuring unit (16). The invention further relates to a method for determining rotational position of a rotating shaft (12).