253 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.

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.

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 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.

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 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.

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 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.

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.

The aerosol-generating device includes: a main body including an insertion space for accommodating an aerosol-generating article; a heater for heating the aerosol-generating article accommodated in the insertion space; an inductive sensor generating a sensing value corresponding to a distance from the magnetic body; and a control unit that is electrically connected to the inductive sensor and that compares the sensed value with a reference value as a determination reference to determine the degree of proximity of the magnetic body to the main body. The control unit is configured to calibrate the reference value using the sensing value as a reference so that the reference value maintains a predetermined difference in relation to the sensing value.

The invention relates to an inductive position sensor for detecting the position of an electrically conductive target (20) which can be moved over a printed circuit. The oscillator circuit induces an AC voltage in at least two receiver coils via a single transmit coil formed by a conductive spiral trace consisting of windings, occupying a surface having a width WE measured perpendicular to the path of movement of the target. Two receiving coils are nested and each formed by at least one conductive spiral trace consisting of at least one winding, at least one of the receiving coils occupying a surface of a width WR measured perpendicular to the path of movement of the target. A width WR of a surface occupied by at least one of the two receiving coils is greater than or equal to a width WR of a surface occupied by the transmitting coil.

The utility model discloses a recycling bin for percutaneous nephroscope operation perfusion flushing fluid, and relates to the field of percutaneous nephroscope operations, the recycling bin comprises a bin body, the top of the bin body is detachably connected with a sealing cover, the bottom of the sealing cover is fixedly provided with a sealing gasket, and the top of the sealing cover is provided with an inductive sensor body; and perspective windows are arranged on the front faces of the two sides of the barrel body, gauges are arranged on the front faces of the perspective windows, rolling wheels are fixedly installed at the bottoms of the two sides of the barrel body, and hydraulic cylinder bodies are arranged at the bottoms of the two sides of the barrel body. Through the arrangement of the barrel body and the perspective window, washing liquid can be stored and checked, the sealing cover is arranged, the recycling barrel can be sealed, the hydraulic cylinder body and the rolling wheels are arranged, the recycling barrel can be easily moved and stably fixed, meanwhile, the limiting plate and the spring are arranged, a drainage pipe can be limited and stored, and the recycling barrel is convenient to use. A communicating pipe and a connecting pipe are arranged, so that the drainage pipe can be detached, cleaned or replaced.

The invention relates to an inductive rotor position sensor device (5) for capturing a rotor angular position of a rotor (4) of an electrical machine (2), having a transmitter coil (8) for generating electromagnetic waves and a receiver coil (9) for capturing the electromagnetic waves which are generated by the transmitter coil (8) and are influenced by the rotor (4), and having a computing unit (11) which is designed to control the transmitter coil (8) and to evaluate the electromagnetic waves captured by the receiver coil (9) in order to determine the rotor angular position, wherein the coils (8, 9) and the computing unit (11) are arranged on a common printed circuit board (6). Provision is made for the coils (8, 9) to be arranged on a front side (7) of the printed circuit board (6) and for the computing unit (11) to be arranged on a rear side (10) of the printed circuit board (6) facing away from the front side (7).

The utility model provides an AGV forklift goods detection stabilizing device, and belongs to the technical field of automatic guided vehicles. The device comprises a fixing plate, a main goods detecting part, a central goods detecting part, an auxiliary goods detecting part and a control unit. The main goods detecting part comprises two goods detecting assemblies, each goods detecting assembly is provided with a fixing frame, a goods detecting baffle, an elastic limiting piece and a first proximity switch, and when the included angle between the goods detecting baffle and the fixing frame is smaller than or equal to 5 degrees, a first detecting signal is output; the central cargo detection part comprises an inductive sensor, detects the cargo insertion state and outputs a second detection signal; the auxiliary goods detecting component comprises a second proximity switch, and when goods enter the sensing range, a third detection signal is output. The control unit receives the three paths of signals at the same time, and outputs a signal of detecting goods in place only after the three paths of signals are all continuously conducted for at least preset time. According to the utility model, the cargo insertion stability is ensured through multiple detection mechanisms, and the safety and reliability of the operation of the AGV forklift are improved.

The utility model discloses an automatic dynamic scanning detection device of aging test product, include: rack, detection bin, inlet and outlet, three color warning light, touch controller, carrier platform, carrier positioning block, carrier inductive sensor, safety grating, translation drive module, bar light source, main light source, visual camera. Through above -mentioned mode, the utility model discloses an automatic dynamic scanning detection device of aging test product can detect multiple products simultaneously, not only reduces the operation and work pressure of personnel, greatly improves the efficiency of test, and improves the productivity, and effectively improves the accuracy and safety of test, satisfies different use demand.

The embodiment of the invention relates to a measured value detection device for an inductive sensor assembly. The invention relates to a measured value detection device for an inductive sensor assembly for detecting a rotational movement, comprising a circuit carrier and a receiving structure of a receiving coil covering a circular ring and having at least two windings, the windings of the receiving coil each having two loop structures with periodically repeating loop sections, in at least two levels of the circuit carrier, the circuit structure sections arranged in different levels are electrically connected to each other via through-contacts, and the circuit structures are offset from each other by a predetermined distance angle and are each separated at at least one separation point. The receiving structure has at least a first separation point which is arranged within the receiving structure at a structurally related intersection point of the corresponding loop structure, the two loop structures are separated at the at least one first separation point, and the ends of the separated two loop structures are connected to each other in pairs by the corresponding connection structure, such that the two windings are electrically connected in series.

This invention relates to an inductive sensor device for detecting changes in the position of an actuating element. The sensor device comprises: - an LC resonant circuit having an inductive element (L) and a capacitive element (C); - an excitation supply for exciting the LC resonant circuit by coupling an excitation voltage (U) to the LC resonant circuit; - a decoupling element arranged between the excitation supply and the LC resonant circuit; and - an evaluation device for evaluating signal attenuation in the resonant circuit. The invention also relates to an actuation device.

The present application belongs to the field of coking production, and solves the problem of accurate alignment of coke oven car and oven mouth. The present application relates to a coke oven car accurate positioning system and positioning method. The system comprises a moving main body connected with a coke oven car to be positioned. The moving main body comprises a top plate with a bottom plate assembly at its lower end. A connecting plate is fixed to the middle of the rail away from the coke oven at the lower end of the bottom plate assembly. A main support plate is arranged below the connecting plate. The main support plate and the connecting plate are connected through a plurality of positive pressure mechanisms. Two measuring rolling wheels are installed below the main support plate, which are in contact with the rail and coaxially arranged with measuring encoders. Four dust sweeping assemblies are installed below the bottom plate assembly. An inductor is installed at the starting point and the terminal point of the moving main body. An inductive sensor is installed near each end of the main support plate. A Hall module is installed on the main support plate. Eight magnetic block columns are arranged near each coke oven door. The system further comprises a single-chip microcomputer, a digital display instrument and an upper computer management system. The present application improves the alignment accuracy of the oven door.

The invention discloses a stator assembly and a magnetic suspension rotary table, and relates to the technical field of motors, the magnetic suspension rotary table comprises a rotor, the stator assembly comprises a stator body and at least two inductive sensor groups, and the stator body is arranged around the periphery of the rotor; the at least two groups of inductive sensor groups are arranged at intervals along the axis direction of the stator body, and the inductive sensor groups are respectively used for detecting central position offset of different axial positions of the rotor; wherein each inductive sensor group comprises a radial sensor and an axial sensor; the radial sensor in each inductive sensor group is used for detecting the rotor center radial displacement of the rotor at the axial position corresponding to the inductive sensor group, and the axial sensor in each inductive sensor group is used for detecting the rotor center axial displacement of the rotor at the axial position corresponding to the inductive sensor group. Therefore, the problem that the rotor displacement detection precision is affected by signal coupling of rotor deflection and axial movement is solved, and the detection precision is improved.