111results 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.

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.

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.

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 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.

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.

The present invention discloses a speed measurement method and device for electromagnetic non-contact online length measurement of steel wire. Axial excitation devices and internal pass-through type magnetic detection sensors are arranged sequentially at intervals in the direction of the steel wire travel. The axial excitation device is excited with a narrow pulse voltage, and the inner-passing type magnetic detection sensor detects the wire circumference. The residual magnetism in the range is detected in real time, and when the magnetic zero point is detected, the control system Send a pulse excitation trigger command to start the next excitation and detection process and obtain the length measurement. The value is increased by a value corresponding to one length measurement pitch, and this is repeated until excitation is terminated. The present invention is a method for detecting the residual magnetism caused by the difference in the strength of the residual magnetism due to the change in the diameter or material of the steel wire to be detected. It solves the problem of deviation caused by wire deflection and signal instability caused by wire deflection, and allows for the use of thinner steel wires. Enables line detection and ensures correct pulse-to-pulse measurement through the traditional instrument calibration and debug process. By setting the interval length, highly accurate length measurement can be achieved.

The invention relates to the technical field of early warning devices, in particular to an intelligent monitoring and early warning system for an expansive red layer geological side slope, which comprises the following steps of: dividing an expansive red layer geological side slope area into a plurality of monitoring areas, and determining hydrological data, strain data, sound wave speed data and environmental data of the monitoring areas in a specified time period; determining a hidden risk area according to hydrological data, strain data and environmental data, and considering water permeation and deformation transmission blocking factors; according to the sound wave speed data and the strain data, the collaborative development degree of sound wave strain is determined, and the collaborative effect of damage evolution and deformation accumulation is quantified; and according to the sound wave speed data, the strain data and the hydrological data, determining a correlation transmission anomaly degree of water and force factors of each hidden risk area, analyzing water penetration and stress transmission anomaly, and according to the collaborative development degree and the correlation transmission anomaly degree, determining a deformation approximation degree of each hidden risk area so as to determine an early warning result. And the accuracy is improved.

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.

The invention relates to a method for determining the wear state of a roller of a curve control unit for a container treatment machine, said curve control unit comprising a control curve, at least one roller which is movably guided along the control curve, and a measuring element which is guided together with the roller along the control curve, said control curve comprising a sensor device, wherein the roller is guided through the sensor device when running along the control curve, and a distance value between the measuring element and the sensor device is determined by means of the sensor device when the roller is guided through, and wherein a wear state of the roller is determined on the basis of the distance value.

The application provides a metal wire state detection method for detecting an abnormal state of a metal wire in a running state, comprising the following steps: when the metal wire is in the running state, a first eddy current sensor is controlled to move along an axial direction of a corresponding processing roller at a set speed; a detection signal collected by the first eddy current sensor is acquired, and it is determined whether the metal wire wound on the processing roller is in an abnormal state based on the acquired detection signal. The application can detect the abnormal state of the metal wire in the running state.