183 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.

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.

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.

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 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 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 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.

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.

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.

A position sensor includes a magnetic field assembly and a Hall-effect sensor for sensing the magnetic field assembly. The magnetic field assembly includes an axially-magnetized cylindrical magnet. The magnet may have a stepped or multiple stepped outer sidewall.

The invention relates to the field of current sensors, and discloses a shunt-based two-way conditioning current sensor, the sensor comprises a shunt detection module and a Hall detection module, the shunt detection module is used for connecting a shunt in series in a loop to be detected, when current flows through the shunt, tiny voltage difference is generated, and the Hall detection module is used for detecting the current flowing through the shunt. Isolating, amplifying, raising and calibrating the voltage difference, and substituting the voltage difference into a UI fitting formula to obtain a current value to be measured; the Hall detection module and the diverter detection module carry out detection synchronously, and a measured voltage signal is output after being amplified, raised and calibrated. By adopting a mode of double-path independent measurement and synchronous comparison of the shunt sensor and the Hall sensor, measurement errors can be detected in real time, and an on-line self-diagnosis function is realized. According to the shunt-based dual-path conditioning current sensor provided by the invention, the Hall element and shunt dual-path conditioning are combined, so that common cause failure is avoided, and the measurement accuracy and reliability are improved; two-way synchronous detection is adopted, faults can be judged when deviation is large, modules can be replaced conveniently, and the self-diagnosis capacity and safety are enhanced.

A manual user input device for translating physical movement into control signals in an electronic device such as a computer. The device has a control element which can be manipulated by the user, a base element which is movably connected to the control element in multiple degrees of freedom. The device is provided with a sensor arrangement for detecting the motion of the control element. The device has magnets and Hall effect sensors for detecting the presence and magnitude of a magnetic field using the Hall effect resulting from motion of the multiple magnets.

The invention discloses a hole bottom standard penetration test device and a use method, and relates to the field of geotechnical investigation. The device comprises a shell, a heavy hammer, a hammering rod, a rotary driving device and a heavy hammer rising and falling device, the heavy hammer is provided with a bearing and pulling assembly, the heavy hammer rising and falling device is provided with a hooking and pulling assembly, the rotary driving device drives the heavy hammer rising and falling device to rotationally rise and fall, connection or disconnection of the hooking and pulling assembly and the bearing and pulling assembly is achieved, and a Hall effect sensor is used for sensing the connection state. Anti-rotation strips are arranged on the inner wall of the shell, narrow-edge notches and wide-edge notches are formed in the heavy hammer and the heavy hammer rising and falling device respectively to be matched with the anti-rotation strips, and movement stability is guaranteed. When in use, the device is lowered after drilling, the heavy hammer rising and falling device is controlled to be connected through the rotary driving device, the heavy hammer is lifted to freely fall to drive the hammering rod, the operation is repeated until the penetration depth reaches the standard, and the hammering frequency is recorded. The device avoids wiring in the motion stroke of the heavy hammer, improves the stability, solves the problems of deep test hammering energy loss and difficulty in cable winding and unwinding of a traditional device, and improves the test accuracy and applicability.

A non-contact angular displacement potentiometer comprises: a housing; the circuit board is arranged in the shell, and a Hall sensor is arranged on the circuit board; the rotating shaft is rotationally arranged on the shell and is provided with a first end arranged in the shell; the magnet is connected to the first end and is opposite to the Hall sensor; the axial end face of the first end is provided with a mounting cavity, the magnet is fixedly arranged in the mounting cavity, and the Hall sensor is partially or completely located in the mounting cavity. According to the utility model, the axial size of the angular displacement sensor can be reduced, so that the angular displacement sensor is more miniaturized.

This utility model discloses a monitoring matrix for monitoring water levels in dams, relating to the field of water level monitoring technology. It includes a dam sidewall with multiple extension plates installed on it. Each extension plate has a sliding groove inside, which communicates with the interior of the dam. A bracket is installed on each of the upper ends of the extension plates, located on either side of the sliding groove. A first fixed shaft is connected between two brackets, and a traction rope is mounted on the surface of the first fixed shaft. One end of the traction rope extends into the sliding groove and is fitted with a float. A longitudinal groove is formed at the upper end of the dam sidewall. This utility model, through a series of structures and the cooperation of multiple Hall effect sensors and floats, overcomes the limitations of traditional single-point monitoring. It achieves full-area coverage of dam water levels using a mechanical transmission matrix. Compared to purely electric monitoring equipment, it has lower maintenance costs and frequency, and the mechanical structure is less susceptible to the effects of extreme environments.

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 current sensor, fora vehicle battery in a vehicle, with an electrical conductor which has a first connection and a second connection for contacting a power circuit of a vehicle. The current sensor includes a first current measurement device and a second current measurement device for measuring the current flowing over the electrical conductor. An evaluation circuit receives measurement values of the first current measurement device and / or the second current measurement device to output a current measurement signal proportional to the current. The first current measurement device utilizes a Hall effect sensor disposed within a constriction with a reduced cross section of the electrical conductor.

The invention discloses a high-voltage distribution box current detection system and method and a storage medium, and relates to the technical field of vehicle high-voltage system current detection. The system comprises a high-voltage distribution box and a processing assembly, the high-voltage distribution box is arranged to distribute high-voltage electric energy to at least one high-voltage electric appliance assembly in the vehicle, a Hall effect sensing assembly is arranged in the high-voltage distribution box, and the Hall effect sensing assembly is arranged to conduct Hall sensing on a high-voltage discharge loop in the high-voltage distribution box to obtain output voltage; and the processing assembly is connected with the Hall effect sensing assembly and is used for carrying out current conversion on the output voltage to obtain a current detection result. According to the invention, the technical problems of low current detection precision and high cost of the automobile high-voltage distribution box in the prior art are solved.

The utility model discloses a Hall sensor mounting structure of a direct current motor, which is used for mounting a Hall sensor and a circuit board on a motor stator, and comprises a concave platform arranged along the circumferential direction of the inner ring of the motor stator and a sensor mounting plate arranged on the end surface of the inner ring of the motor stator, a fixed seat is arranged above the sensor mounting plate, and the Hall sensor is arranged in the fixed seat in a penetrating manner; an annular groove is formed in the concave table, the circuit board is arranged in the annular groove, and the Hall sensor bottom foot is electrically connected with the circuit board; the annular groove is fixedly connected with the sensor mounting plate, a plurality of notches are formed in the fixed connection position of the annular groove and the sensor mounting plate, a plurality of buckles matched with the notches are arranged on the motor stator, and the buckles are detachably connected with the notches. The device has the advantages of being convenient to install, good in stability and convenient to maintain and replace.

The utility model discloses a fire-fighting appliance cabinet, which relates to the fire-fighting field and is characterized by comprising a shell and a cabinet door rotatably connected to the shell, the inner top surface of the shell is fixedly connected with a lighting lamp panel and a controller, a Hall effect sensor is arranged in the controller, the lighting lamp panel is electrically connected with the controller, and the Hall effect sensor is electrically connected with the controller. And the inner side of the cabinet door is fixedly connected with a magnetic block. The controller controls the illuminating lamp panel to emit light, illumination is provided for the interior of the shell, a user can conveniently take and use fire-fighting articles in the fire-fighting article cabinet, the efficiency of handling dangerous cases by the user is improved, when the user takes out the fire-fighting articles, the state of the pressure-sensitive switch changes, the prompting lamp panel is lightened, other users are prompted that the fire-fighting article cabinet is empty, and the safety of the fire-fighting articles is improved. And other users can conveniently judge the condition in the fire-fighting article cabinet.

The invention discloses a water tank structure for dehumidification, a dehumidifier of the water tank structure and a method for calculating the water volume of a dehumidification water tank. The water tank structure comprises the dehumidification water tank installed on a dehumidification body. A water level sensing floater and a water fullness sensing floater are arranged on the inner wall side, close to the dehumidification body, in the dehumidification water tank, and a Hall sensing plate used for sensing the water level position where the water level sensing floater is located to conduct sensing calibration so as to display the water level height is installed on the dehumidification body. A water full sensing point corresponding to the water full sensing floater is arranged at the topmost end of the Hall sensing plate; a plurality of groups of Hall sensing points are arranged in the dehumidification main body along the vertical direction, and the floater moves in the vertical direction of the Hall sensing points to monitor, calibrate and display the amount of the condensed water stored in the box body in real time, so that a user can conveniently observe and make a water pouring plan in advance.