295 results about "Hall effect sensor" patented technology

A flow sensor for sensing fluid flow. The flow sensor includes an exterior, interior, a circuit board, and first and second ports. The first and second ports permit fluid to flow into and out of the interior. A Hall Effect Sensor in the interior detects the number of revolutions of an impeller. An electric coupler interfaces with the flow sensor and a transmitter for communication of the revolutions of the impeller to a controller. The controller determines the rate of fluid flow in a conduit. The controller issues a command signal to a component of a hydraulic system to alter the rate of fluid flow in the conduit.

The invention discloses a high-precision detection method for a fault electrode of an electrolytic cell, and the method comprises the following steps: S1, carrying out the equipment layout, carrying out the infrared thermal imaging image collection, employing a high-resolution and large-field-angle lens collection device, improving the infrared image effect, improving the detection range, and installing uniformly-distributed current measurement devices, such as a Hall effect sensor, in the electrolytic cell; s2, image acquisition equipment is installed, the image acquisition equipment is installed through a visiting support and related assemblies, and meanwhile, the system adopts an automatic cruise and visiting mode to observe and troubleshoot field fault electrodes. According to the electrolytic cell fault electrode high-precision detection method and the positioning system, through infrared thermal imaging image acquisition, image splicing, deep learning algorithm convolutional neural network identification of a fault electrode plate and calling of a current matrix for analysis, through comparison of the two, a fault is determined through dual-mode fault detection; misjudgment is avoided; and the accuracy of fault pole plate positioning is improved.

A pop-up sensor head with a camera transitions between a retracted and extended state. While retracted, the camera lens is covered. While extended, the camera lens is exposed and available for use. A motor maintains the sensor head at a setpoint position, such as in the retracted or extended state. A position data, such as from a Hall effect sensor associated with the motor, may be used to determine a displacement of the sensor head due to an external force being applied, such as a user pressing on the sensor head. Responsive to this input, the sensor head may transition between the retracted and extended state.

A dendrometer, comprising a single mechanical element functionally holds a sample under test via a spring-element in the element that draws two arms firmly against the sample. The spring section of the single mechanical element can be serpentine, or any other shape providing the desired spring constant and range of motion. The one or more spring members extend between the first frame member and the second frame member, wherein the one or more spring structures are nonrigid (extensible and compressible) such that the second frame member is movable relative to the first frame member. The dendrometer comprises a toothed socket on an end of each arm to allow adjustment of the range of clamping. In at least one example, a magnet or actuator attached to one arm, and a Hall effect or other positional sensor, is attached to the alternate arm.

A circuit includes a bias current generator, a temperature compensation circuit, and a Hall effect sensor. The bias current generator has a first input, a second input, a first terminal, and a second terminal. The bias current generator includes a resistor circuit having a first terminal and a second terminal coupled to the first terminal and the second terminal of the bias current generator respectively. The temperature compensation circuit has a first input, a second input coupled to the first input of the bias current generator, and an output coupled to the second input of the bias current generator. The Hall effect sensor has a first terminal coupled to the first terminal of the bias current generator, a second terminal, a third terminal, and a fourth terminal.

The invention relates to the technical field of power utilization monitoring, and discloses a power utilization safety monitoring device based on a magnetic suspension power distribution technology, and the device comprises a current detection system which obtains the working state information of a current transformer and a Hall effect sensor through a data collection module; the data analysis module performs normalization processing on the frequency, the current, the direct current component, the environmental magnetic field intensity, the power supply voltage and the aging drift amount; the reliability analysis module calculates the reliability of the two types of sensors based on the normalized index; the weight endowing module dynamically distributes sensor weights in combination with the temperature influence factors; and the current summary calculation module outputs the final detection current through weighted fusion. The problem that a single sensor is easily influenced by frequency deviation, direct current component, temperature drift and magnetic field interference under complex working conditions is solved, high-precision and high-reliability self-adaptive current monitoring is realized, and the safety monitoring capability of a magnetic levitation power distribution system is remarkably improved.

A debris sensor apparatus comprising a head portion, a male-threaded portion, and a shaft comprising a debris sensor assembly, the debris sensor assembly comprising one or more permanent magnets comprising a cavity on a first end, a Hall-effect sensor configured within the cavity, a first pole piece configured adjacent to a second end of the one or more permanent magnets, and a second pole piece configured adjacent to the first end.

The utility model discloses a magnetic steel positioning mechanism of a decorative ring assembly, which comprises a large support, a decorative ring assembly arranged on the large support and rotatably connected with the large support, and a stepping motor driving the decorative ring assembly to rotate, the stepping motor is fixed on the large support, one end of the decorative ring assembly is fixedly provided with a rotating shaft, and the other end of the decorative ring assembly is fixedly provided with a magnet. The rotating shaft is provided with a magnetic steel assembly, and the large support is fixedly provided with a Hall sensor module matched with the magnetic steel assembly. According to the utility model, the acting surfaces of the decorative ring assembly are switched through the stepping motor, so that different shapes are presented, different light requirements are met, a dynamic effect of rotation of the decorative ring assembly is generated when the decorative ring assembly rotates, and compared with a single light effect of sequential lighting of a conventional light source, the light effect is richer.

A rotary hammer includes a housing and a mode selection dial supported in the housing. The mode selection dial includes a cam. The housing supports a motor providing a rotational output. The housing supports a linkage moveable between a first position and a second position in response to engagement by the cam. A loss-of-control detection system measures acceleration of the housing and disables the motor upon the acceleration exceeding an acceleration threshold. The housing supports an operating mode detection system including a magnet and a Hall-effect sensor. The magnet is coupled to the linkage and moveable therewith between a third position corresponding to the first position of the linkage and a fourth position corresponding to the second position of the linkage. The Hall-effect sensor provides an output signal indictive of the position of the magnet. The loss-of-control detection system is selectively disabled based upon the output signal.

The present disclosure describes sensor devices that can be readily integrated with prosthetic devices to provide sensing of force and torque applied to the prosthetic device during use. The sensor device includes an adaptor section that readily connects to standard prosthetic components and a base section. The base section has a deflectable portion and a fixed portion. Cantilevers in the deflectable portion house magnets and corresponding Hall effect sensors are housed in the fixed portion. When axial and / or torsional forces are applied, the cantilevers deflect relative to the fixed section and the Hall effect sensors provide a corresponding output that correlates to the axial and / or torsional forces applied.

A welding electrode apparatus may be mounted to a programmable motion controller such as a robot that presents it to a workpiece along a pre-programmed path conforming to the workpiece surface. The apparatus has a first drive for rotating the welding electrode about its own axis. The welding electrode holder is part of a welding electrode had that is mounted to, or includes, an adapter that itself mounts to a programmable robot. The welding head is sprung on the adapter, such that application of the welding rod against the workpiece under a given force deflects the springs. The adapter can be adjusted in real time relative to the robot to smooth out variations in application force. The apparatus uses Hall effect sensors to sense deviations from a datum of spring displacement or force, and has a servo-motor to re-adjust positioning of the welding head relative to the robot.

A smart parcel delivery box with authenticated access and theft detection system, consisting of: a weatherproof housing that defines a secured storage compartment, a microcontroller-based control unit that is functionally connected to control all system functions, a matrix keypad positioned on an outer surface of the housing to receive authentication inputs, at least one infrared proximity sensor positioned within the storage compartment to detect the presence and absence of packages, at least one vibration sensor attached to the housing to detect unauthorized tampering attempts, a magnetic door position detection system comprising at least one Hall-effect sensor and associated magnetic elements to monitor the state of the door position, a servo-controlled automatic locking mechanism for securing said storage compartment, visual indicators comprising RGB LED elements to display system status information, an electronic screen for displaying system information and generating one-time passwords, acoustic signaling devices for issuing acoustic warnings and confirmations, a wireless communication means for sending notifications and receiving remote commands and a power supply means for supplying electrical energy to all system components.

A head-worn device is presented, featuring an intuitive power control mechanism based on the device's physical hinge states. The device includes a pair of hinges, each connecting a temple piece to the frame, capable of transitioning between open and closed positions. Sensors, such as Hall effect sensors, detect these positions and output signals accordingly. A hardware logic circuit receives the signals, controlling the device's power state-activating when both hinges are open and deactivating when closed. The system also incorporates hardware security circuitry that forcibly disables hardware components like cameras and microphones in the inactive state, ensuring user privacy. This power control mechanism is designed to be robust against unintended activations and integrates seamlessly with the user's natural interactions with the eyewear, offering a secure, convenient, and user-friendly experience.

The utility model discloses a multi-optical-filter switching device comprising an installation box which is a cavity with an opening at the top and is internally provided with a rotary accommodating cavity; a plurality of optical filter mounting holes are formed in the middle of the rotary slide glass at equal intervals, the rotary slide glass is rotationally arranged in the rotary containing cavity, an angle recognition part is arranged on the outer side of the rotary slide glass and used for recognizing the rotation angle of the rotary slide glass, and a driving part is arranged above the rotary slide glass and used for driving the rotary slide glass to rotate. The beneficial effects of the utility model are that the angle position of the rotary slide glass can be accurately detected through the arrangement of the driving part and the soft magnetic sheet and the Hall effect sensor of the angle identification part; by means of the liftable cleaning cotton and the second motor for driving the cleaning cotton, when the internal ICR optical filter needs to be cleaned, the cleaning cotton can move downwards and make contact with the optical filter, then wiping is conducted through rotation, the cleanliness of the ICR optical filter is guaranteed, and the performance of equipment is maintained.

The invention provides a field calibration method based on a wireless clamp buckle type three-phase electric energy calibration device. The field calibration method comprises the following steps: establishing a wireless communication link between a three-phase electric energy meter and a portable calibration host through a wireless synchronous trigger module; three groups of split-core type current transformers are respectively connected with a detected three-phase line in a clamping manner, a Hall effect sensor and a dual-mode sampling unit of a magnetoresistive sensor are arranged in each group of split-core type current transformers, and current signal fusion processing is realized through a Kalman filtering algorithm; synchronously acquiring the three-phase voltage signals; and generating a three-dimensional verification report comprising the time mark information, the harmonic distribution diagram and the error trend curve, wherein the three-dimensional verification report is packaged by adopting an extensible markup language format and is embedded with a digital signature. According to the invention, power-off-free online verification can be realized, the current measurement precision and the communication reliability are remarkably improved, the anti-interference capability is enhanced, the complex electric energy quality analysis requirement of a new energy access scene is met, and an efficient and reliable technical means is provided for electric energy metering verification of an electric power system.

The invention relates to the field of gas ejectors, in particular to a valve needle stroke monitoring device and method.The valve needle stroke monitoring device comprises a clamping mechanism, a magnetic induction mechanism, a double-guide reset mechanism and a shell mechanism, and the clamping mechanism is used for clamping a valve body of the gas ejector; the magnetic induction mechanism comprises an ejector rod, a magnet and a Hall effect sensor, one end of the ejector rod is configured to be in contact with the end part of a valve needle of the gas ejector, the magnet is arranged at the other end of the ejector rod, and the Hall effect sensor is arranged opposite to the magnet to detect the displacement of the magnet; the double-guide reset mechanism is used for providing axial reset force for the ejector rod; the shell mechanism is used for integrating the clamping mechanism, the magnetic induction mechanism and the double-guide reset mechanism. According to the method, the real-time stroke of the valve needle is calculated according to the difference value between the real-time position signal and the initial position signal. By adopting the technical scheme, the stroke of the valve needle can be directly measured in a high-precision, high-reliability and convenient-to-mount manner.

The invention relates to the technical field of current sensing, in particular to induction type micro self-powered wireless current sensing equipment which comprises an external measurement shell, a Hall effect sensor arranged in the external measurement shell and an arc-shaped assembly seat installed on the inner wall of the external measurement shell. Close-to-close adjustment operation can be carried out according to cables of different specifications, so that the measurement distance is reduced, and the measurement precision is improved. An electric control type sliding adjusting frame used for installing a Hall effect sensor is assembled on the outer side of the overturning guide frame in a sliding mode, the measuring position of the sensor is changed in an electric control sliding adjusting mode, and therefore the sensor is controlled to be adjusted along the periphery of the cable, and the measuring range is widened. The electric control type sliding adjusting frame is driven by the lateral driving wheel to slide in the internal guide groove, unfolding and folding can be controlled by changing the position, and self power supply can be facilitated.

The utility model discloses a camshaft signal panel angle detection device based on a Hall effect sensor, which comprises the Hall effect sensor, a base and an L-shaped mounting plate, and is characterized in that the Hall effect sensor is mounted on a first strip-shaped hole in the vertical surface of the mounting plate; the Hall effect sensor can be adjusted up and down to ensure that the probe of the Hall effect sensor is as high as the center of the signal panel; and the mounting plate can be mounted on the base in a front-back adjustable manner through the second strip-shaped hole so as to ensure that the distance between the Hall effect sensor and a signal panel of the cam shaft is 1.5-2.5 mm. The cam shaft rotates near the Hall effect sensor probe, the convex teeth on the signal panel periodically change the magnetic field intensity of the Hall effect sensor, and according to the Hall effect principle, a signal panel graph and an output angle value are obtained to complete detection, manual detection is not needed, the accuracy rate is high, and the signal panel graph can be visually displayed.

In various examples, there is an apparatus for measuring a deterioration condition of a shoe, the apparatus comprising at least one Hall effect sensor located proximate a first surface of a sole of the shoe; at least one magnet positioned proximate a second surface of a sole of the shoe; and a communication component in electronic communication with the or each Hall effect sensor via a conductive connector. The communication component is operable to transmit data from the Hall effect sensor to an external device. Figure 3 is attached when published.

This invention relates to the technical field of computer input devices, and more particularly to a high-performance magnetic axis keyboard. The key features of this technical solution are: a keyboard body, a magnetic axis, and keycaps. The magnetic axis includes: a housing connected to the keyboard body; a core, vertically mounted within the key axis, the core having a magnet; a Hall effect sensor located in the housing and engaging with the magnet; a floating element vertically mounted in the housing; a spring connected to both the core and the floating element; and an adjusting element located in the housing and connected to the floating element. The adjusting element drives the floating element to adjust its position, thereby controlling the initial compression of the spring. This application enables the adjustment of the magnetic axis keyboard's actuation force, thus solving the problems of limited actuation force and monotonous tactile feedback in magnetic axis keyboards.

The embodiment of the invention relates to a method and device for detecting a fault of a Hall sensor in a motor, a controller and a medium. The method comprises the following steps: acquiring an initial phase of a rotor of the motor sensed by a Hall sensor, wherein the initial phase is associated with the position of the rotor relative to a stator; determining whether the initial phase corresponds to a zero phase; and determining that the Hall sensor has a fault in response to the initial phase corresponding to the zero phase. According to the method disclosed by the invention, whether the Hall sensor in the motor has a fault or not can be judged only by detecting the phase of the rotor represented by the output signal of the Hall sensor under the condition that expensive and complicated inspection equipment is not used.

The present invention is directed to a surgical instrument with a robotics system, a memory device and an end effector having an elongate channel, knife position sensor(s) and a firing bar coupled to a knife. In response to drive motions initiated by the robotics system, the firing bar may translate within the elongate channel. As the firing bar translates, the sensor(s) transmit a signal to the memory device. The position of the knife may be determined from the output signals and may be communicated to the robotics system or instrument user. The sensors may be Hall Effect sensors.

The invention provides a surface topography detection method, which comprises the following steps: applying a predetermined magnetic field to a Hall sensor, and respectively acquiring a first voltage at two ends of a second conductor and a second voltage at two ends of a third conductor under the condition of providing current for a first conductor, respectively acquiring a third voltage at the two ends of the first conductor and a fourth voltage at the two ends of the second conductor under the condition of providing current for the third conductor; according to the corresponding first voltage, the second voltage, the third voltage and the fourth voltage, determining a surface element angle of a surface element where the Hall sensor is located; determining surface element positions of the plurality of surface elements according to the surface element angles of the plurality of surface elements; and determining the surface topography of the to-be-detected surface according to the surface element positions of the plurality of surface elements. The invention further provides detection equipment, a computer readable medium and a computer program product.

1. The name of this design product: Hall effect sensor for tablet computer. 2. Purpose of this design product: This design product is used as a Hall effect sensor for tablet computers. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

This invention relates to the field of vehicle fault diagnosis technology, and discloses a method, apparatus, and computer-readable storage medium for diagnosing vehicle gear shift switches. The method includes: using two Hall effect sensors corresponding to each gear shift switch contact in the vehicle to acquire a first state signal and a second state signal for each gear shift switch contact at the current moment; determining a first integrated state value based on each first state signal, and determining a second integrated state value based on each second state signal; and performing fault diagnosis on the vehicle's gear shift switch based on the first integrated state value and the second integrated state value. Applying the technical solution of this invention can meet the current functional safety requirements for gear shift switch state acquisition, achieve accurate diagnosis of different fault types of vehicle gear shift switches, and improve the overall safety performance of the vehicle.

To provide: multi-component Hall effect sensors and sensing methods suitable for embedding within integrated circuitry; and integrated circuit manufacturing methods that enables embedding of such sensors and sensing methods.SOLUTION: A transducer 112 as an integrated circuit device includes: a substrate comprising a semiconductive body material 302 with an upper surface 304; a focus contact 306 on the upper surface that connects, via an electrically isolated path, to an embedded current focus 310 within the semiconductive body material; one or more distributed current contacts 314 on the upper surface that operate in combination with the embedded current focus to form a distributed current flow through the semiconductive body material; and an arrangement of sensing contacts 316 on the upper surface to detect a set of voltages representing a Hall effect measurement for each three-dimensional vector component of a magnetic field acting on the distributed current flow.SELECTED DRAWING: Figure 3

The invention relates to the technical field of cleaning equipment, in particular to a cleaning system of ground cleaning equipment and the ground cleaning equipment. The cleaning system comprises a linear Hall effect sensor arranged in a rolling brush mounting groove of the ground cleaning equipment, and the linear Hall effect sensor is configured to generate variable voltage output in response to magnetic change; the control module is connected to the linear Hall effect sensor and is configured to identify the rolling brush type of the ground cleaning equipment based on the voltage output result of the linear Hall effect sensor; the rolling brush components are provided with magnetic components, and when any rolling brush component is installed in the rolling brush installation groove, the position of the magnetic component arranged on the rolling brush component is located in the sensing range of the linear Hall effect sensor. According to the scheme, the defect that the cleaning strategy of the cleaning equipment is not matched with the type of the rolling brush in the prior art is overcome, and the corresponding efficient cleaning mode is automatically and optimally configured according to the specific characteristics of the currently installed rolling brush.

A fully integrated micro search coil magnetometer (μSCM) with a low-noise instrumentation amplifier is provided for low-frequency magnetic field measurements in the range of 1Hz to 1kHz. A micro search coil formed by stacking planar spiral inductors and serially connecting them with an in-phase configuration is used for magnetic field measurements. The critical line width and inner diameter of a planar spiral inductor are theoretically calculated and experimentally verified, enabling the development of a unique CMOS layout. This layout incorporates the calculated critical inner diameter, significantly optimizing the area utilization on the CMOS die. Additionally, the CMOS die includes a polysilicon-layer inductor for on-chip calibration, a Hall effect sensor for DC magnetic field measurement, and a temperature sensor for enhanced functionality. The μSCM delivers a compact, energy-efficient, and highly sensitive solution for low-frequency magnetic field measurements, surpassing the performance of most commercially available Hall effect sensors.

This utility model discloses an automatic oil injector, comprising: a sensor detachably connected to the automatic oil injector; a base having an internal mounting area and an external operation panel area; a pump mounted in the mounting area; a control board electrically connected to a first sensor, the first sensor being positioned corresponding to the operation panel area; the pump being electrically connected to the control board; the first sensor being used to collect information on the duration of the sensor's proximity to the first sensor; and an indicator light located in the operation panel area; the indicator light being electrically connected to the control board; the indicator light, according to a control signal from the control board, performing any one of the following actions: constantly on, off, flashing, or color changing. The first sensor is a Hall effect sensor, and the sensor is connected to a magnet. A lubricant container is also included, and the base is detachably connected to the lubricant container.

This application discloses an elevator floor acquisition method and related equipment, belonging to the field of elevator control technology. The method includes: acquiring real-time operating data of a target elevator using Hall effect sensors and a barometric pressure sensor; wherein the operating data includes the direction of travel, speed, and operating signal; calculating the absolute position of the target elevator based on the operating data; and acquiring the floor information of the target elevator based on its absolute position and a pre-built floor reference position table; wherein the floor information includes the current floor and the floor ahead. This application, by installing Hall effect sensors and a barometric pressure sensor on the elevator to acquire elevator operating data, can obtain the floor information of the target elevator, providing basic data support for improving the scheduling logic of a general group control system and effectively improving the rationality of the scheduling logic.