291results about "Converting sensor output mechanically" patented technology

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).

The invention provides a relay contact pressure debugging method and device, equipment and a storage medium. A moving contact of the relay is arranged on the leaf spring, one end of the leaf spring is connected with the first part, and the moving contact is far away from or close to the static contact by rotating the first part. Before debugging, a first distance between a moving contact and a static contact is determined on the basis of a target debugging pressure under the condition that the target debugging pressure is applied to the moving contact on the leaf spring in the direction away from the static contact, and a first angle is determined on the basis of the first distance; the first angle can indicate a first angle that the first part needs to rotate under the condition that the leaf spring does not elastically deform and the moving contact of the leaf spring horizontally moves by a first distance. Therefore, after the first angle is calculated in advance, the moving contact can be close to the static contact and the pressure applied to the static contact by the moving contact is the target debugging pressure only by controlling the first part to rotate by the first angle along the specific direction, so that the debugging process is saved, and the production efficiency is improved.

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.

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.

To reduce the influence of an unintended magnetic flux of a permanent magnet on detection accuracy. An absolute encoder (2) includes a magnet provided at a tip end side of any one of a first worm gear portion (11) and a second worm gear portion (22), and an angle sensor configured to detect a rotation angle of the magnet in response to a change in magnetic flux generated from the magnet. In the magnet, a first magnetic pole portion of a first polarity and a second magnetic pole portion of a second polarity different from the first polarity are formed adjacent to each other as viewed from an axial end surface of the magnet. The first magnetic pole portion and the second magnetic pole portion are formed adjacent to each other in a radial direction with a radial center of the magnet as a boundary, and the first magnetic pole portion and the second magnetic pole portion are formed adjacent to each other in an axial direction with an axial center as a boundary. The absolute encoder (2) is provided with a magnetic interference reduction member formed of a magnetic material on a radially outer peripheral surface of the magnet.

A seat position sensor arrangement for measuring a position of a seat with respect to a fixed part of an automotive vehicle includes a driving mechanism, a pair of wheels rotatably coupled by the driving mechanism and rotating with different angular speeds upon being driven by the driving mechanism, and at least one rotation sensor subassembly corresponding to each of the wheels. Each rotation sensor subassembly measures an angle of rotation of one of the wheels.

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.

A steer-by-wire assembly, method and absolute position sensor for a vehicle, comprises a first motor with a stator and a rotor, a screw actuator configured to engage a threaded portion of a steering shaft and move the steering shaft longitudinally when the screw actuator rotates, and a rotor carrier sleeve coupled between the first rotor and the screw actuator, configured to rotate about the longitudinal axis of the steering shaft. The assembly also includes a first rotary position target arranged around the rotor carrier sleeve, wherein the position of the first rotary position target corresponds to a unique position of the steering shaft, and a first rotary position sensor configured to detect movement of the first rotary position target and send a sensor signal to a controller.

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.

The invention discloses a portable detection vehicle for subway tunnel leakage water diseases. The portable detection vehicle comprises a main cross beam support, a vertical beam support, a wheel track frame, a hand-push support, a distance measuring encoder and the like. The main cross beam bracket is provided with two cross pipes which are orthogonally and fixedly connected through insertion and extraction, and three groups of ground penetrating radar antenna suspension brackets are arranged below the main cross beam bracket, so that the detection operation of leakage, void and other diseases under a tunnel ballast bed can be realized; the wheel rail frames are three groups of belt wheel brackets fixedly mounted below the main cross beam bracket, and the transverse spacing of the wheel rail frames can be adjusted according to different track gauges; one end of the vertical beam bracket is fixedly connected with the main cross beam bracket, and a plurality of plate-shaped platforms are arranged above the vertical beam bracket and are used for carrying different types of tunnel disease detection instruments; on one hand, the hand-push bracket provides advancing power for the portable detection vehicle, and on the other hand, the acquisition terminal can be mounted and fixed; and the distance measuring encoder is coaxially connected with the wheels of one group of belt wheel brackets and is used for accurate positioning of data acquisition. According to the device, rapid and synchronous detection of subway tunnel ballast bed leakage, void damage, tunnel appearance water leakage damage, tunnel deformation and other damage can be realized by carrying a detection instrument, and meanwhile, the device is convenient to disassemble and assemble and convenient to carry by workers.

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.

A measuring apparatus (250) for a trailer vehicle (201) for determining an articulation angle (A) between a towing vehicle (202) and the trailer vehicle (201) comprises a kingpin (210) and a sensor apparatus (215). The sensor apparatus (215) is designed to measure a deflection (D) of the kingpin (210) in two directions (R1, R2) that is caused by a force (F) between the towing vehicle (202) and the trailer vehicle (201).

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

Embodiments herein generally relate to methods and systems for downhole sensing. In at least one example, the system for downhole wireless sensing comprises: a power supply electrically connected to a conductive portion of a well, and configured to provide input electric current through the conductive portion; a wireless sensor unit electrically connected to the conductive portion to receive the input electric current, the wireless sensor unit connecting to an output ground node and configured to transmit an output sensor signal through the output ground node; a ground signal receiver for detecting an electromagnetic signal, travelling through ground, corresponding to the output sensor signal; and at least one processor coupled to the ground signal receiver for receiving the detected output sensor signal.

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

To provide a multi-turn measurement system capable of measuring rotation over multiple turns.SOLUTION: A multi-turn measurement system is provided, comprising a plurality of gears 30, a plurality of pinions 20 engaging the plurality of gears 30, a plurality of magnets 40, each disposed on one of the plurality of gears 30, and a plurality of magnetic field sensors. Rotation of the pinions 20 about a center axis drives rotation of the plurality of gears 30. Each of the magnets 40 has a magnetic field that changes based on an angular position of one of the plurality of gears 30. Each of the magnetic field sensors is positioned to sense the magnetic field of one of the plurality of magnets 40.SELECTED DRAWING: Figure 3

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 embodiment of the present application provides a detection device and a vehicle assembly system having the detection device. The detection device is used to detect whether the height of the tightening rod on the vehicle assembly pallet extending downward from the vehicle assembly pallet is lower than the specified height. The detection device includes: a mounting bracket; an alarm switch, the alarm switch is arranged on the mounting bracket; and a detection plate, the detection plate is rotatably arranged on the mounting bracket, and the height of the upper surface of the detection plate corresponds to the specified height, so that when the height of the tightening rod is lower than the specified height, the tightening rod contacts the detection plate in the initial position and pushes the detection plate to rotate to the trigger position of the alarm switch, so that the alarm switch sends an alarm signal. The detection device has higher reliability and can reduce or avoid false detection.

The utility model discloses a miniaturized metal film box sensor with a sealing structure, which comprises a sensor main body, a first sealing box and a second sealing box, a cable is arranged in an adapter of the sensor main body, a second sealing gasket is laid on the second sealing box, two sides of the second sealing box are fixedly provided with mounting blocks, and the mounting blocks are fixedly connected with the first sealing box and the second sealing box. A penetrating hole is formed in the mounting block, and a buckle assembly is arranged at one end of the mounting block. According to the utility model, the first sealing box and the second sealing box are drawn close to each other between the adapter and the cable by a worker, so that the first sealing gasket and the second sealing gasket are respectively sleeved on the surface of the adapter and the surface of the cable, and the connecting block is fixed in the insertion hole through the buckle assembly. And the first sealing box and the second sealing box are prevented from being separated, so that the first sealing gasket and the second sealing gasket can prevent rainwater from entering the adapter along the cable and the surface of the adapter, and the advantage of protecting an internal circuit of the sensor main body is achieved.

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.