344 results about "Inductive sensor" patented technology

The invention discloses an error compensation inductance sensor calibration method and system, and the method comprises the steps: controlling a macro-micro composite driving platform to drive a moving part provided with a to-be-calibrated inductance sensor, and enabling the moving part to carry out the continuous displacement movement relative to a fixed standard target surface; measuring the actual displacement of the moving part to obtain a standard displacement sequence; the actual output voltage of the inductive sensor to be calibrated in the movement process is synchronously collected, and an actual measurement value sequence is formed; solving measurement deviation, generating a measurement deviation sequence, and dividing the sequence into not less than three compensation intervals according to a displacement range; a compensation value lookup table is established in each compensation interval, and calibration parameters used for correcting zero offset, gain drift and nonlinear characteristics are generated. Displacement measurement and sensor output synchronous acquisition are combined, zero offset, gain drift and non-linear errors can be corrected in a targeted mode, and compensation fineness and adaptability are improved.

An electric linear actuator has a housing extending along a longitudinal axis. A spindle is provided in the housing and extends along the longitudinal axis. A rod is coaxially coupled to the spindle and extends from a proximal end located in the housing to a distal end located outside the housing. The rod is movable along the longitudinal axis in response to rotation of the spindle. A circuit board is located in the housing adjacent the proximal end of the rod. The circuit board includes a linear inductive sensor having a linear axis oriented parallel to the longitudinal axis. The linear inductive sensor senses an actual position of the proximal end of the rod.

The invention relates to the technical field of electric vehicle transmission and control, in particular to an electric vehicle speed reducer parking motor position feedback system. The system aims at solving the problems that the position feedback precision is reduced, the reliability is insufficient and the redundancy is deficient in a severe environment in the existing scheme. According to the system, through redundancy design of a main position sensing module (a magnetoelectric encoder) and an auxiliary position sensing module (an inductive sensor) and in combination with a multi-source data fusion module (based on Kalman filtering), anomaly detection and fault tolerance, position prediction and compensation and a temperature compensation and self-adaptive calibration mechanism, accurate feedback of the position of the parking motor rotor is achieved. According to the system, the accuracy and robustness of position feedback and the reliability of the system can be remarkably improved, the service life of a parking mechanism is prolonged, and the parking safety is improved.

A system may include a resistive-inductive-capacitive sensor, a driver configured to drive the resistive-inductive-capacitive sensor at a driving frequency, a measurement circuit communicatively coupled to the resistive-inductive-capacitive sensor and configured to measure phase information and amplitude associated with the resistive-inductive-capacitive sensor, and a noise detection circuit communicatively coupled to the measurement circuit and configured to determine a presence of external interference in the system based on at least one of the phase information and the amplitude information.

The utility model discloses an electric energy meter and terminal shell automatic dust removal device which comprises a conveyor belt and a controller, the conveyor belt is driven by a motor, the electric energy meter and terminal shell to be subjected to dust removal is put in from the front section of the conveyor belt and taken out from the rear section of the conveyor belt, a dust removal station is arranged in the middle section of the conveyor belt, and an inductive sensor is arranged at the dust removal station. A vibration device is arranged at the bottom of the dust removal station, a positive pressure air purging gun and a negative pressure air dust collection gun are arranged on the two sides of the dust removal station and right opposite to the dust removal station, and the controller communicates with and controls the positive pressure air purging gun, the inductive sensor, the motor and the vibration device. According to the utility model, automatic dust removal of the shells of the electric energy meter and the terminal is realized, dust-removed air is filtered at the same time, the influence of cleaning operation on the surrounding environment and the secondary pollution to other products are greatly improved, and a great contribution is made to the improvement of the product quality.

The utility model discloses a tray contact type redundancy in-place detection device of a bidirectional telescopic pallet fork. The tray contact type redundancy in-place detection device comprises a bottom plate, a left contact plate, a right contact plate, a spring, a pin shaft, an induction type sensor and a contact type sensor. The two ends of the left contact plate and the two ends of the right contact plate are respectively provided with two sets of concentric round holes, one set of holes of the left contact plate and one set of holes of the right contact plate are hinged together through a pin shaft, the whole bottom plate is in a U shape, the two ends of the bottom plate are provided with through kidney-shaped grooves, and the other set of round holes of the left contact plate and the other set of round holes of the right contact plate can move in notches of the bottom plate through pin shafts. And a spring is connected between the two pin shafts for connecting the left contact plate, the right contact plate and the bottom plate to ensure that the pin shafts lean against the inner sides of the two waist-shaped notches of the bottom plate when the tray is not in place. The device is installed at the two ends of the outer side of the fork teeth of the bidirectional telescopic pallet fork and adjusted to the proper height, the left contact plate and the right contact plate can move towards the bottom plate side under extrusion of the pallet, feedback of the two in-place switches is triggered, and whether the pallet is in place or not can be detected.

There is provided a sensor unit for a fastener assembly, the sensor unit comprising a mounting arranged to rigidly attach the sensor unit to, or adjacent to, a fastener assembly; and a sensor, that is an optical flow sensor or an inductive sensor, configured to sense movement of the fastener assembly. The sensor unit may comprise a processor arranged to process the output of the sensor to detect loosening of the fastener assembly and to output a signal representing the status of the fastener assembly. The sensor unit may comprise a wireless communication unit arranged to communicate the signal.

The wine bottle thickness measuring instrument is composed of a main body structure and a magnetic field measuring unit, the magnetic field measuring unit comprises a magnetic field inductive sensor and a permanent magnet assembly which form a magnetic field distance measuring system, and an electric signal output by the magnetic field inductive sensor is in linear correlation with the magnetic field intensity of the environment where the magnetic field inductive sensor is located; the main control module is electrically connected with the magnetic field measurement unit, pre-stores a magnetic field intensity B and distance d calibration data set matched with the permanent magnet assembly, reads an electric signal output by the magnetic field induction sensor, converts the electric signal into an actual magnetic field intensity value, selects a reference data set based on the calibration data set, and sends the reference data set to the permanent magnet assembly; the distance between the magnetic field inductive sensor and the permanent magnet assembly is calculated through a preset algorithm, and the distance is the thickness of the bottle wall of the wine bottle. The invention provides a wine bottle thickness measuring instrument with high precision, portability and non-contact measurement, so as to promote the standardization process of the wine identification and collection industry.

The invention relates to a pedal arrangement (1) for a vehicle, comprising a movably mounted pedal plate (3) which can be actuated against a force from a spring element (15) over a small actuation travel, a circuit carrier (7) and at least one sensor arrangement (10) with an inductive sensor (10A) which is designed to detect the actuation of the pedal plate (3) and the actuation travel, wherein the inductive sensor (10A) comprises at least one transmitting structure (12) and at least one receiving structure (16) and at least one electrically conductive coupling element (14) and is designed to couple an electrical voltage to the receiving structure (16) based on an eddy current principle, starting from the transmitting structure (12) and via the electrically conductive coupling element (14).wherein the transmitting structure (12) and the receiving structure (16) are arranged on the circuit carrier (7) and a current distance (A) between the circuit carrier (7) and the electrically conductive coupling element (14) determines a degree of coupling between the transmitting structure (12) and the receiving structure (16), wherein the small actuation path of the pedal plate (3) changes the current distance (A) between the circuit carrier (7) and the electrically conductive coupling element (14) and thus a measurement signal output by the receiving structure (16).

The invention discloses an anti-interference mounting structure of an inductive sensor, and aims to solve the technical problems of insufficient mounting space and limited application scene caused by high requirement on interference-free distance of peripheral metal of the conventional TURCKNI100U-K90SR-VP4X2 type inductive sensor, the structure comprises a metal protection box, an electromagnetic shielding assembly and a sensor body; the electromagnetic shielding assembly comprises two electromagnetic shielding films with the size of 25 * 10 * 0.5 mm, and the two electromagnetic shielding films are attached to the two sides of the upper portion of the sensor body respectively. The top of the metal protection box is provided with a non-transparent anti-aging plastic cover plate, one end is provided with a through hole for wire connection, the inner wall of the bottom is provided with a sensor mounting blind hole, and the outer wall is provided with an equipment fixing guide hole. The metal interference-free distance around the sensor is shortened to 18.5 mm through local electromagnetic shielding, meanwhile, it is guaranteed that the detection distance of the sensor in the vertical direction is not attenuated, sealing protection of the sensor is achieved through the protection box, the application scene of the high-detection-distance inductive sensor is remarkably expanded, and the high-detection-distance inductive sensor is particularly suitable for mechanical equipment in a narrow space.

Flexible, longitudinally extended sensors comprising variably resistive and / or inductive sensing material. Sensors connect to an external processing unit using as few as 2 wires. In operation, sensors measure resistance / inductance along their longitudinal extent (curve). Spectral de-multiplexing allows electrical property differences along sensors to be resolved. This enables shape tracking of the flexible sensor. The sensor principles are suitable for the production of ultra-small diameter probes (for example, smaller than 0.5 mm) of arbitrary length (for example, 30 cm long). There are potential advantages for cost efficiency and ease of manufacture. The sensor can be constructed as a shape tracked guidewire to enable endovascular navigation procedures. The sensor's tracked shape enables deformation tracking of the anatomy. Using the sensor's tracked shape rather than repetitive X-ray imaging improves navigational accuracy and reduces exposure to radiation.

An inductive sensor is integrated on a printed circuit board assembly (PCBA) of an electrical protective device, such that the inductive sensor is configured to contactlessly measure angular motion of an electrically conductive target mounted on the PCBA corresponding to a component of the electrical protective device. The inductive sensor comprises an integrated circuit, a transmitter coil, and receiver coils spaced apart vertically from the electrically conductive target. The integrated circuit is electrically coupled to the transmitter coil such that the integrated circuit is configured to transmit a high frequency time varying signal into the transmitter coil. The high frequency time varying signal energizes the transmitter coil thereby inducing a magnetic field. The magnetic field induces one or more output signals on the receiver coils and eddy currents in the electrically conductive target. The eddy currents produce a counter magnetic field that alters the output signals responsive to an angular displacement of the electrically conductive target.

The invention relates to the technical field of oil and gas drilling, in particular to a while-drilling azimuth electromagnetic wave nanovolt-level high-Q-value multi-frequency signal detection circuit. The invention provides a nanovolt-level high-Q-value multi-frequency signal detection pre-amplification circuit which is suitable for all while-drilling azimuth electromagnetic wave resistivity instruments and is simpler in structure. The method is suitable for solving the problem of multi-frequency-point multi-group parallel matching in antenna inductance sensor open-loop voltage signal acquisition preprocessing, and the signal-to-noise ratio of the whole acquisition circuit is effectively improved. The method is suitable for a frequency-selecting filter which has the requirement for amplitude-frequency response characteristic stability near a center frequency point in a narrow-band-pass filter. The multi-frequency signal high-dynamic-range measuring circuit can be independently used as a sensor pre-amplification circuit, a segmented program control gain circuit containing a crossing interval is adopted, the measuring dynamic range spans four orders of magnitude to reach 80dB, and multi-frequency signal high-dynamic-range measuring is achieved.

A method and device for sorting lump ore relate to the mining and processing industry, and more particularly to technology for pre-processing ores containing a valuable component that has a low concentration and low mass fraction in the rock mass which correlate with the distribution of the component, or for pre-processing ores containing minerals with low magnetic susceptibility or non-magnetic minerals. The working of the device and the method are based on a 3D electromagnetic method which utilizes two systems: a 3D scanner (1) and an inductive sensor system (3) with electromagnetic coils. The two systems operate in a consolidated manner, with the 3D scanner (1) system acting as a master system and the inductive sensor system (3) acting as a slave system. The inductive sensor system (3) is configured in the form of a matrix (6) of coils, the parameters of which are stored in a computing unit (10). The 3D scanner (1) scans lumps of ore and generates a data array which is also supplied to the computing unit (10), which processes the data array and determines the order of activation of individual sensors.

The present invention consists of a machine with a collector of disposable shoe covers and endowed with platform to support the foot wearing the disposable shoe cover positioned on an upper belt in a direction opposite that of the lower belt where both make up a drag mechanism of the disposable shoe covers. The machine is endowed with traction motor and driven by a switch or by an inductive sensor. The machine is endowed with steering rollers for defining the directions of the stretches of the belts which form an “L” shape. The lower belt has a mechanism comprised of an articulated roller mounted on displacers driven by springs and mounted on guides for adjusting the passage of the shoe cover inside the machine to an upper level of said belts for reaching the height of the collector where the shoe cover is collected.

The invention discloses interlayer parting strip feeding and distributing equipment for aluminum profile framing and a using method, the interlayer parting strip feeding and distributing equipment comprises a parting strip distributing mechanism which is arranged on one side of aluminum profile production equipment, and a plurality of parting strips are distributed on the parting strip distributing mechanism at equal intervals; the parting strip conveying mechanism is arranged at the starting end of the parting strip distribution mechanism and is used for continuously conveying parting strips to the parting strip distribution mechanism; a parting strip transferring mechanism is arranged between the parting strip distributing mechanism and the parting strip conveying mechanism and can transfer parting strips on the parting strip conveying mechanism to the parting strip distributing mechanism one by one. According to the parting strip feeding and distributing equipment, full-automatic distribution of parting strips can be achieved, full-automatic production can be achieved after the parting strip feeding and distributing equipment is connected with aluminum profile production equipment, and the production efficiency of aluminum profiles is further improved; and an inductive sensor and a positioning mechanism are arranged on the distribution synchronous conveying belt at the same time, electronic and mechanical double positioning is achieved, the accurate position of the division bar can evenly bear the load of the aluminum profile, and accurate hoisting of hoisting equipment is facilitated.

A powered fastener driver including: a rotary lifter rotatably supported within the housing and configured to sequentially engage the plurality of teeth to move a driver blade from a bottom-dead-center position toward a top-dead-center position; a drive unit configured to provide torque to the rotary lifter, causing it to rotate; a nosepiece defining a fastener driving channel, the fastener driving channel extending along a driving axis of the driver blade; a workpiece contact element movable relative to the nosepiece between an extended position and a retracted position; a sensor assembly including a first inductive sensor configured to detect a position of the workpiece contact element in one of the extended position or the retracted position; and a second inductive sensor configured to detect an angular position of the rotary lifter, wherein the first inductive sensor and the second inductive sensor are on opposite sides of the rotary lifter.

The invention belongs to the technical field of ink-jet printing, and provides a printing equipment positioning device control method, device and system and a storage medium. The method comprises the steps that an inductive sensor is arranged at the zero point position of printing equipment in the X motor direction, and the X motor direction is the ink-jet moving direction; the inductive sensor is used for inducting whether the printing trolley is at the zero point position or not, controlling the inductive sensor to send an induction signal to a preset control device of the printing equipment, connecting the preset control device and a positioning device, and positioning the printing trolley according to the induction signal. According to the method, it can be ensured that the positioning device cannot be started due to false triggering in the printing operation process of the printing trolley, and the safety of a spray head in the printing process is ensured.

The utility model relates to the technical field of detection devices, and discloses a photoelectric width measuring device which comprises a double-shaft air cylinder and a photoelectric sensor, a magnet with a seat penetrates through and is installed on the left side of a front plate of a width measuring air cylinder connecting plate in a threaded mode, and a light eye sensing support copper sleeve shaft is arranged at the front end of the photoelectric sensor. The outer side of the optical eye induction support copper sleeve shaft is movably sleeved with a copper alloy straight sleeve type bearing, the outer ring of the copper alloy straight sleeve type bearing is movably sleeved with a width measurement contact block, and a width measurement contact probe is slidably installed in the insertion hole. A cylindrical inductive sensor penetrates through the right side of the front plate of the width measuring cylinder connecting plate and is installed in a threaded mode. According to the device, the edge position of a glass product can be accurately detected through the synergistic effect of the cylindrical inductive sensor and the photoelectric sensor, high-precision alignment measurement is achieved, meanwhile, the split type structural design is adopted, rapid separation is achieved, and the maintenance efficiency and flexibility of equipment are greatly improved.

The present application relates to a kind of high-temperature-resistant inductive angle sensor, belong to angle sensor technical field.The sensor includes: gradient composite ceramic substrate Al2O3-ZrO2-Al2O3, realize thermal expansion coefficient gradient matching by intermediate layer zirconium oxide doped yttrium oxide, reduce thermal stress cracking risk;Substrate surface is formed with micro-arc oxidation porous layer in turn titanium nitride nanocrystalline layer, improve surface bonding force;Atomic layer deposition process is used to prepare TiN or TiN / Ag composite film coil, improve temperature resistance;Through electron beam welding and transient liquid phase bonding composite process coil and circuit;Insulating encapsulation layer is made of boron nitride nanosheet and high-temperature-resistant resin, improve thermal conductivity and breakdown field strength.The present application is through gradient substrate design, thin film coil integration and composite process optimization, solves the thermal stress failure of traditional inductive sensor under high temperature, coil oxidation and insulation aging problem, suitable for angle measurement under extreme environment.

The invention is based on a position determination device for a handheld material testing device, which is designed to detect a path traveled by the material testing device and comprises at least one signal transmitter unit (14) and at least one sensor unit (18) for being arranged on a rolling element (16) of the material testing device, wherein the signal transmitter unit (14) comprises at least one signal transmitter element (20) for changing a measurement signal depending on a rotational position of the rolling element (16), and wherein the sensor unit (20) is designed to be arranged on a chassis (22) of the material testing device for detecting the measurement signal. It is proposed that the signal transmitter element (20) is designed as an inductive signal transmitter element and the sensor unit (18) is designed as an inductive sensor unit, which are designed for inductive coupling to each other.

According to one embodiment of the present disclosure, a home appliance including an inductive sensor is disclosed. The home appliance may comprise: a first PCB including a patterned and printed coil; a second PCB soldered to the first PCB to form a cavity on the upper part of the coil; a metal panel supported by the second PCB and including a touch key; and a processor for detecting that a touch has occurred on the touch key as a current value flowing through the coil changes on the basis of a displacement difference of the touch key.

The application discloses a kind of detection structure of reciprocating pump cumulative flow, including the lower sleeve in reciprocating pump and with the transmission connection of worm gear in reciprocating pump, the inner hole lower end of lower sleeve is equipped with bearing, the lower side of lower sleeve is spaced and is equipped with bearing cover, the side of bearing cover towards lower sleeve is raised and forms boss in the inner hole of bearing along the center line direction of lower sleeve, boss is installed in the inner hole of bearing and is rotatably connected with lower sleeve by bearing, one or more induction blocks are fixedly connected on the lower end surface of lower sleeve, when the number of induction block is multiple, multiple induction blocks are evenly spaced and arranged around the center line direction of lower sleeve, inductive sensor is installed in the position of bearing cover corresponding lower end surface of lower sleeve, inductive sensor can inductively detect induction block, counter module is provided outside bearing cover, inductive sensor is electrically connected with counter module.The application also discloses a kind of method for detecting the cumulative flow of reciprocating pump using the above structure.

The utility model discloses an intelligent invisible induction stair lamp control system which comprises a wireless control device, a controller, a plurality of light-emitting lamp bodies and a plurality of induction sensors. The inductive sensor is arranged in the light-emitting lamp body, the light-emitting lamp body and the inductive sensor are connected with the controller through lines, the controller can receive carrier signals which are sent by the inductive sensor and contain inductive information to judge whether light needs to be emitted or not, and the controller can send carrier signals containing control information to the light-emitting lamp body. And the light-emitting lamp body is controlled to emit light. The wireless control device is connected with the controller in a wireless connection mode, the wireless control device comprises a voice input assembly, a user can input voice instructions to the wireless control device through the voice input assembly, and the wireless control device can control the controller to work in a wireless control mode and control the light-emitting lamp body to emit light through the controller. The wireless control device can be a common intelligent sound box in the market, and if the wireless control device is a millet sound box, the wireless control device can be connected to the miter system.

The invention relates to an integrated circuit for redundant inductive sensor coils. A system for inductive position sensing is described. The transmit coil may generate a magnetic field. The first set of receiver coils may pick up a first voltage signal from the magnetic field. The second set of receiver coils may pick up a second voltage signal from the magnetic field. The first inductive sensor and the second inductive sensor may have a fixed relationship. An integrated circuit (IC) may multiplex the first voltage signal and the second voltage signal to process one of the first voltage signal and the second voltage signal using one channel at a time. The IC may convert the first voltage signal to a first digital parameter and convert the second voltage signal to a second digital parameter. The IC may output the first digital parameter and the second digital parameter to trigger the at least one rationality checker to determine whether the first angular position and the second angular position satisfy a fixed relationship.

The utility model discloses an automatic feeding detection mechanism, and relates to the technical field of metal stamping. The automatic feeding detection mechanism comprises a base which is installed on a continuous stamping die, the base is provided with a 7-shaped swing groove, and the swing groove comprises a horizontally-arranged first limiting groove and a vertically-arranged second limiting groove; the swing block is in a 7 shape and is matched with the swing groove, the swing block comprises an upper swing part and a lower swing part, a rotating shaft is arranged at the front end of the upper swing part in a penetrating mode, the rotating shaft is detachably and fixedly arranged between the side walls of the front ends of the first limiting grooves, the upper swing part is rotationally connected with the rotating shaft, and a tested metal piece is arranged at the rear end of the upper swing part; and the inductive sensor is detachably and fixedly arranged on the base through a mounting seat, is positioned at the rear end of the first limiting groove and is used for detecting the position of the detected metal piece. The automatic feeding detection mechanism is convenient to disassemble and maintain and low in cost.

The utility model discloses an inductance encoder for a rotating motor, which relates to the technical field of encoders and comprises a signal receiving and demodulating module, the signal receiving and demodulating module comprises a rotor plate, a stator coil plate and a dual-channel induction inductance sensor chip, the rotor plate is connected with a rotating shaft portion of the rotating motor, and the stator coil plate is connected with the inductance sensor chip. The stator coil plate comprises an exciting coil and a receiving coil, non-contact electromagnetic induction is formed among the rotor plate, the exciting coil and the receiving coil, and the inductance sensor chip is used for demodulating amplitude modulation signals on the receiving coil and converting the amplitude modulation signals into sine and cosine signals; the signal processing module is used for receiving the sine and cosine signals output by the inductive sensor chip and processing the sine and cosine signals to obtain signal information; the signal decoding and outputting module is used for receiving the signal information and converting the signal information into angle position information of a motor rotor plate; the inductance encoder has the characteristics of high anti-interference capability, strong environmental adaptability and low cost.

The invention discloses an unlocking method and system based on an inductive sensor, an intelligent door lock and a storage medium, and the method comprises the following steps: obtaining a secret key input by a user, verifying the secret key to obtain a verification result, controlling a main tongue lock of the intelligent door lock to unlock according to the verification result, and controlling an auxiliary tongue lock of the intelligent door lock to lock, obtaining a door opening activation instruction; an induction sensor of the intelligent door lock is activated according to the door opening activation instruction, the activated induction sensor conducts induction detection on the holding position of a user to obtain an induction result, and based on a proximity induction algorithm, the direction of the holding position is judged according to the induction result to obtain the holding direction; and if the holding direction is the preset door opening holding direction, a width tongue lock of the intelligent door lock is controlled to be unlocked. The correct holding direction of the user is recognized through the inductive sensor for unlocking, the accuracy of recognizing the holding position of the user by the intelligent door lock is greatly improved, and the accident that the hand of the user is clamped is avoided.

This invention discloses an error-compensated inductive sensor calibration method and system, comprising: controlling a macro-micro composite drive platform to drive a moving component on which an inductive sensor to be calibrated is mounted, causing it to continuously move relative to a fixed standard target surface; measuring the actual displacement of the moving component to obtain a standard displacement sequence; synchronously acquiring the actual output voltage of the inductive sensor to be calibrated during the movement process to form an actual measurement value sequence; calculating the measurement deviation, generating a measurement deviation sequence, and dividing the sequence into at least three compensation intervals according to the displacement range; establishing a compensation value lookup table in each compensation interval to generate calibration parameters for correcting zero-point offset, gain drift, and nonlinear characteristics. This invention combines displacement measurement with synchronous acquisition of sensor output, enabling targeted correction of zero-point offset, gain drift, and nonlinear errors, thus improving the precision and adaptability of the compensation.

An aerosol generating device is provided. The aerosol generating device includes: a body shaped to define an insertion space; a heater located within the insertion space; a sensing coil positioned around the insertion space; a capacitance sensor coupled to the sensing coil and being configured to measure a capacitance in a vicinity of the sensing coil; an inductive sensor coupled to the sensing coil and being configured to measure an inductance in the vicinity of the sensing coil; and a switch configured to electrically connect the sensing coil to any one of the capacitance sensor or the inductive sensor.