138results about "Electrical/magnetic length/width measurements" patented technology

An electronic interactive device includes an interaction surface for use with a user borne device. The interaction surface includes a contact detection surface for detecting a device contact event with the interaction surface; a plurality of magnetometers defining a reference coordinate system and a sensing volume proximate to the interaction surface, with each of the magnetometers having a rigid spatial relationship to the other magnetometers; and processing circuitry communicably coupled to at least the contact detection surface and the plurality of magnetometers. The plurality of magnetometers perform magnetic field measurements and provide measurement data to the processing circuitry. The processing circuitry determines at least one of position and / or magnet orientation relative to a longitudinal axis of the user borne device and a distance separating the magnet and / or magnet orientation relative to a longitudinal axis of the user borne device from the interaction surface when the contact event occurs.

The utility model discloses a plate processing device which comprises a workbench, a measuring unit and a side pushing unit, the measuring unit is arranged on the front side of the workbench, and the side pushing unit is arranged on the upper side of the workbench so as to push a plate placed on the workbench to be tightly attached to the left side edge or the right side edge of the workbench. The measuring unit comprises a mounting plate, a magnetic measuring sensor, a measuring magnetic strip and a first connecting plate, the side pushing unit comprises a third connecting plate and a side pushing strip, and the front end of the third connecting plate is fixedly connected with the upper side of the first connecting plate. The measuring unit comprises the magnetic measuring sensor and the measuring magnetic strip, so that the precision and the range of plate size measurement are improved, and the machining precision of the plate is ensured. According to the utility model, the board processing precision error caused by the size error of the board is avoided, the installation efficiency of the customized furniture is improved, and the manufacturing cost of the customized furniture is saved.

The invention provides an elevator compensation chain length measuring device, and relates to the technical field of mechanical automation, the technical key points are that the elevator compensation chain length measuring device comprises a support frame and a length measuring sensor, two groups of symmetrical stabilizing devices are arranged above the support frame, each stabilizing device comprises two stabilizing rolling shafts extending along the width direction of the support frame and a stabilizing belt, a pressing device is arranged above each stabilizing device, each pressing device comprises a pressing rolling shaft corresponding to the corresponding stabilizing rolling shaft and a pressing belt, and a driving device is arranged above each pressing device to drive the corresponding pressing device to move in the vertical direction; a motor sliding table is arranged on the supporting frame and used for adjusting the position of the length measuring sensor. The length measuring sensor is not affected by the surface smoothness of the compensation chain in the measuring process, meanwhile, vibration and friction borne by the compensation chain in the length measuring process are reduced through the pressing device and the stabilizing device, and therefore the possibility of errors is reduced.

The utility model relates to a static magnetic grid gate stroke sensor, which comprises a magnetic grid ruler, a magnetic head, a positioning structure and a buffer structure, the positioning structure comprises channel steel, first limiting parts and second limiting parts are sequentially formed on the inner side wall of the channel steel from inside to outside, a magnetic railing ruler is installed between the two first limiting parts, a magnetic head is installed between the two second limiting parts in a sliding mode, and an upper sealing plate and a lower sealing plate are arranged at the top and the bottom of the channel steel respectively to position the magnetic railing ruler. The buffer structure comprises a buffer box, a buffer cavity is formed in the buffer box, a buffer hole is formed in the bottom of the buffer cavity, a buffer block larger than the buffer hole is arranged in the buffer cavity, a plurality of springs are connected between the peripheral side of the buffer block and the side wall of the buffer box in the circumferential direction, and a connecting rod penetrating through the buffer hole is connected between the bottom of the buffer block and the magnetic head. A buffering gap exists between the connecting rod and the buffering hole. According to the static magnetic grid gate stroke sensor, the accuracy of a measurement result can be well ensured.

A method and system for continuous condition monitoring of a hoist chain implementation of the following steps:—detecting with at least one sensor a presence / absence of chain links and / or of teeth of a chain sprocket,—determining with an evaluation unit, using a signal obtained from the sensor(s), time intervals reflecting the presence / absence, and—determining with the evaluation unit sums of the time intervals,—determining with the evaluation unit a chain speed, and—comparing with the evaluation unit the first sum with the second sum in order to determine an elongation of the hoist chain, wherein each time interval was determined at the same chain speed.

An adapter (200; 300) includes a cup (201; 301) having an inner portion (203; 303) proportioned to retain a sensor probe (250) such that a face (251) of the sensor probe (250) is exposed to an interior of a gas turbine, where the inner portion (203; 303) includes a sidewall (205; 305) and a lip (207; 307). The cup (201; 301) also includes one or more channels (209A, 209B, 209C; 309A, 309B, 309C) extending along the sidewall (205; 305) and across the lip (207; 307). The adapter (200; 300) includes a mounting flange (221; 321), where the one or more channels (209A...309C) are configured to direct a gas from an exterior of the gas turbine across the face (251) of the sensor probe (250).

The invention belongs to the field of probe test data processing, and provides a probe sediment thickness measuring and calculating system and equipment based on electrical change slope correction, current and displacement are synchronously acquired by a sliding time window in a probe stretching process, the current is normalized according to a base line to obtain current propulsion distribution, and the current propulsion distribution is calculated according to the base line. And comparing with the displacement normalization sequence point by point to obtain an electrical change entropy ladder spectrum. Continuously calculating the information difference between the current slope distribution and the historical slope distribution, generating an electrical transformation slope correction interval and an electrical transformation slope correction interval punctuation, and automatically controlling the PWM duty ratio speed regulation of the motor according to the electrical transformation slope correction interval punctuation; when the resistance is extremely small, the speed is automatically full, and when the resistance suddenly increases, the speed is instantly reduced. After grounding is judged, the sediment thickness is corrected and output according to the effective displacement of the stretching needle and the real-time dip angle cosine. According to the scheme, baseline drift can be resisted, millimeter-level precision and second-level grounding judgment are achieved, the measurement efficiency is improved, probe abrasion is reduced, and the method is suitable for sediment detection of pile holes in deep, large-diameter and high-salinity sea areas.

A system for measuring an internal pressure of a tire can include processing circuitry and memory coupled to the processing circuitry. The memory can have instructions stored therein that are executable by the processing circuitry to cause the processing circuitry to perform operations. The operations can include determining an area of a contact patch of the tire on a drive over surface. The operations can further include determining a load on the tire. The operations can further include determining the internal pressure of the tire based on the load on the tire and the area of the contact patch.

The invention discloses a real-time size monitoring system for steel wire rope production, and relates to the technical field of size monitoring. The small change of the diameter of the steel wire is monitored through the force sensitive resistor, and the change of the diameter is reflected through voltage change; by detecting the inductance value of the second spring, whether the elastic force of the spring is changed or not can be monitored, so that the precision and reliability of the measuring system can still be ensured even after long-term use, and measuring errors caused by aging of the spring are avoided. Due to the design, the service life of the equipment is prolonged, and the maintenance cost is reduced; the diameter of the steel wire can be monitored, and the moving speed and distance of the steel wire can be measured through induced electromotive force. By integrating multi-dimensional data acquisition, the state of the steel wire in the production process is comprehensively monitored, the consistency of product quality is ensured, and the comprehensive measurement method can provide more production data support.

Conveyor system comprising a conveyor chain with a plurality of connected chain links and a support structure arranged for supporting the conveyor chain. The conveyor chain is arranged as an endless conveyor chain structure configured for moving relative to the support structure in a transporting direction. The conveyor chain comprises a first detection element and a second detection element, where the first detection element and the second detection element are separated from each other along the conveyor chain. The conveyor system comprises a first sensor unit and a second sensor unit arranged in positions relative to the conveyor chain where simultaneously the first detection element is adjacent to the first sensor unit and the second detection element is adjacent to the second sensor unit. The first sensor unit is configured for detecting an initial passage of the first detection element at an initial time, and the second sensor unit is configured for detecting an initial passage of the second detection element at the initial time. The first sensor unit is configured for detecting a following passage of the first detection element at a detection time after the initial time, and the second sensor unit is configured for detecting a following passage of the second detection element at the detection time after the initial time. The conveyor system is configured for determining a first time offset between the initial passage of the first detection element and the initial passage of the second detection element, and determining a second time offset between the following passage of the first detection element and the following passage of the second detection element, where a difference between the first time offset and the second time offset is indicative of a deviating condition of the conveyor chain.

This invention belongs to the field of probe test data processing, and provides a probe sediment thickness measurement system and equipment based on electro-variable slope correction. During probe extension, current and displacement are simultaneously collected within a sliding time window. The current is normalized according to the baseline to obtain the current propulsion distribution, and then compared point-by-point with the displacement normalization sequence to obtain the electro-variable entropy gradient. The information difference between the current slope distribution and the historical slope distribution is continuously calculated to generate the electro-variable slope correction interval and its punctuation points, and the motor PWM duty cycle is automatically controlled accordingly for speed adjustment; automatic full speed when resistance is extremely low, and immediate speed reduction when resistance suddenly increases. After bottoming out, the sediment thickness is output based on the effective probe displacement and the real-time inclination angle cosine correction. This scheme can counteract baseline drift, achieve millimeter-level accuracy and second-level bottoming out determination, improve measurement efficiency, reduce probe wear, and is suitable for sediment detection in deep, large-diameter, and high-salinity marine pile holes.

The invention provides an absolute displacement detection system and method for an integrated linear hydraulic actuator. The detection system comprises a control valve, an actuating cylinder, an integrated actuating shaft, a transmitting electrode plate, a signal processing system, a system controller and a driving connector. Wherein the control valve and the actuating cylinder are communicated through a machine and an oil way; the actuating cylinder and the integrated actuating shaft are in sealed sliding, and the actuating cylinder can slide according to an instruction of the control valve so as to drive the actuating shaft driving joint to move; the transmitting electrode plate is in clearance fit with the integrated actuating shaft to generate capacitance reflection; the transmitting electrode plate and the integrated actuating shaft are connected with the signal processing system through cables, and collected signals are processed to obtain displacement feedback values. When the emission electrode and the integrated actuating shaft generate relative displacement, each Ci corresponds to a fixed position, and absolute displacement can be measured after initial calibration; wherein Ci is the total capacitance of the emission electrode and the integrated actuating shaft.

There is provided a welding wire remaining amount detection and warning system which relates to the welding field. The present disclosure aims to solve the problem of inability to detect the welding wire remaining amount in the laser composite welding makeup device. In the present disclosure, in the welding wire remaining amount detection process, based on electromagnetic induction principle, the equivalent inductance of the coil decreases along with decrease of the welding wire. The change of the equivalent inductance of the coil is converted by the LC oscillator circuit into a directly-collectable frequency change signal. By detecting the value of the current frequency, the current welding wire remaining amount can be determined.

The present invention relates to an apparatus for obtaining capacitance measurement values for use in determining the relative permittivity and thickness of pharmaceutical tablets. The present invention further relates to a method for determining the relative permittivity and thickness of pharmaceutical tablets using one or more capacitance sensors. The apparatus and method may be part of a pharmaceutical tablet forming unit or a pharmaceutical tablet forming method.

The invention relates to a display device. The display device includes: a substrate; a pixel disposed on the substrate; and a first measurement pad disposed on the substrate. The first measurement pad includes: a first electrode disposed on the substrate; a second electrode disposed on the first electrode and electrically separated from the first electrode; and an insulating layer disposed between the first electrode and the second electrode.

The application relates to a kind of free electron laser electron beam and seed light arrival time jitter measurement methods, which utilize modulation section wave oscillator to realize energy exchange of electron beam and seed light in time t direction coincidence part, thereby forming energy modulation with seed light wavelength as period, utilize dispersion section to realize density modulation of electron beam in time t direction, utilize radiation section wave oscillator to realize amplification of radiation field, utilize microwave deflection cavity to realize conversion of electron beam time direction information to X direction of the plane where beam measurement target is located, utilize deflection magnet to realize conversion of electron beam energy direction information to Y direction of the plane where beam measurement target is located, and finally realize the purpose of detecting electron beam and seed light arrival time relative jitter by detecting the distance between complete electron beam center line on beam measurement target and the center line of the part where electron beam and seed light coincide.

The utility model discloses a counter weight mechanism of a meter counter, which comprises a meter counter body and a counter weight mechanism used for increasing the weight of the meter counter body, rollers are arranged on two sides of the meter counter body, fixing blocks are arranged at four corners of the bottom of the meter counter body, fixing holes are arranged on the fixing blocks, and the meter counter body and the counter weight mechanism are arranged on the bottom of the meter counter body. The counterweight mechanism comprises a mounting plate and a counterweight block mounted on the mounting plate, one end of the mounting plate is bent to be provided with a hook part, the top and the bottom of the hook part are each provided with a plurality of first kidney-shaped holes, and the two sides of the surface of the middle of the mounting plate are each provided with a plurality of second kidney-shaped holes; the surface of one end, deviating from the hook part, of the mounting plate is provided with a mounting hole matched with the fixing hole, and one end, deviating from the hook part, of the surface of the mounting plate is provided with a plurality of first assembling holes. Therefore, the friction force between the roller and the measured object is improved, and the measurement precision of the meter counter body is effectively improved.

The invention relates to a sensor system (60) for a closure element (3), in particular a door or a window, wherein the sensor system (60) comprises a sensor device (1) for detecting operating states of the closure element (3), wherein the sensor device (1) can determine at least as operating states whether the closure element (3) is open or closed and whether a locking element (5, 6) of the closure element (3) is retracted or extended, wherein the sensor system (60) comprises an electronic device (61), in particular a computing unit (61), for outputting a message, wherein the message can be generated using the determined operating state.

This utility model discloses a length measuring device for metal liner processing, relating to the field of metal liner processing. It addresses the problem in existing technologies where, when the measured dimension deviates significantly from the target dimension, the measurement error cannot be indicated, resulting in a lack of flexibility and convenience. An error indication block is provided on the upper end of one side of the inner frame, and a first contact switch is installed inside the error indication block. An inner sliding groove is formed in the middle of the upper surface of the lower sliding block, and an inner fixing rod is fixed inside the inner sliding groove. A pressing sliding block is slidably connected to the inner sliding groove along the outside of the inner fixing rod. A pressure spring is fixed between the outer wall of the inner sliding groove and the pressing sliding block along the outside of the inner fixing rod. A second contact switch is installed on the outside of the pressing sliding block. A warning structure is installed on the outside of the outer frame, and the warning structure, the second contact switch, and the first contact switch form a series circuit.

The application provides an elevator compensation chain length measuring device and relates to the technical field of mechanical automation. The technical key points are that the device comprises a support frame and a length measuring sensor. Two groups of symmetrical stabilizing devices are arranged above the support frame. Each stabilizing device comprises two stabilizing rollers extending along the width direction of the support frame and a stabilizing belt. A pressing device is arranged above each stabilizing device. The pressing device comprises a pressing roller corresponding to the stabilizing roller and a pressing belt. A driving device is arranged above the pressing device to drive the pressing device to move in the vertical direction. A motor sliding table is arranged on the support frame to adjust the position of the length measuring sensor. The length measuring sensor is not affected by the smoothness of the surface of the compensation chain during the measurement. Meanwhile, the pressing device and the stabilizing device reduce the vibration and friction of the compensation chain during the length measurement, thereby reducing the possibility of error.

A cable length measurement device, configured to: be connected a winding wheel and measure an extension or retraction length of a cable on the winding wheel, which includes a fixed shell, a rotating shell and a control panel. The rotating shell is rotatably connected to the fixed shell. The rotating shell is configured to be connected to the winding wheel and rotate around a rotation axis with the winding wheel. One of the fixed shell and the rotating shell is provided with a signal transmitter. The other one of the fixed shell and the rotating shell is connected to the control panel. The control panel is provided with a signal receiver. When the signal transmitter passes through the signal receiver, the signal receiver generates a counting signal, and the control panel receives the counting signal to calculate the extension or retraction length of the cable on the winding wheel.

The invention relates to a method for the precise location treatment of a multi-layer continuous product (10) which is moved along a longitudinal extent (1) at a web speed, wherein the continuous product (10) has a first layer (11) made of plastic or rubber, at least one second layer (12) made of plastic or rubber and an information carrier (20, 21, 28) which is arranged between the first layer (11) and the second layer (12), has at least one electromagnetically visible element (22) and, viewed in the direction of the longitudinal extent (1) of the continuous product (10), has a defined distance (25) from a point (24) of the continuous product (10) at which the treatment is to take place, wherein a reading device (100) detects the element (22) and generates a start signal (23) on the basis of which the treatment of the continuous product (10) is initiated.

Systems and methods are provided for monitoring properties of a web during a roll-to-roll manufacturing process. The methods may include moving the web past a first roller such that the web contacts the first roller, wherein the first roller includes a first contact strip formed of an electrically conductive material and extends circumferentially about the first roller, applying a voltage to the first contact strip while moving the web past the first roller, such that the voltage conducts through the web to a second contact strip, measuring the voltage received by the second contact strip, determining local resistance values relative to positions of the web based on the difference in the voltage applied to the first contact strip and the voltage received by the second contact strip, and determining at least one property of the web relative to the positions of the web based on the local resistance values.

A cylinder sensor assembly, a system, and a method of operating a piston-cylinder assembly. The sensor assembly may generally include a housing; a sensor supported by the housing and configured to sense a position of a piston relative to a cylinder; and a wireless transmitter supported by the housing and configured to output a communication signal representative of a sensed position of the piston.

The present invention relates to a device for obtaining capacitance measurements for use in determining the relative permittivity and thickness of a pharmaceutical tablet. The invention further relates to a method of determining the relative permittivity and thickness of a pharmaceutical tablet using one or more capacitance sensors. The device and method may be part of a pharmaceutical tableting unit or a pharmaceutical tableting method.

Disclosed embodiments include a flexible having a flexible capacitive sensing region and at least one motion restrictor in at least part of the flexible capacitive sensing region that impedes flexing along a restricted axis direction.

The application relates to the technical field of sensors, in particular to a high-precision linear displacement and angular displacement system which comprises a metal object moving target, a detection device, a PCB circuit board and a planar coil, the planar coil is printed on the PCB circuit board, the planar coil comprises a transmitting coil and a receiving coil, the transmitting coil and the receiving coil are connected with the detection device, the transmitting coil comprises a transmitting coil one and a transmitting coil two, the receiving coil comprises an A-group receiving coil one and an A-group receiving coil two and a B-group receiving coil one and a B-group receiving coil two, the application is resistant to temperature drift, is very small in influence on environmental temperature change, is in time in signal response, is very suitable for dynamic signal detection, is stronger in anti-interference, is resistant to severe environment, is convenient for on-site debugging and software upgrading, is modularized in hardware, and is more suitable for hardware module replacement and upgrading.