535 results about "Position detector" patented technology

The invention relates to the technical field of particle accelerators, in particular to a transverse feedback system with a switchable excitation direction and a control method thereof, and the system comprises a beam position detector BPM which is used for measuring a beam signal; the RF front end is used for receiving the beam signal sent by the beam position detector BPM and carrying out amplification and filtering processing; the ADC module is used for converting the beam signal into a digital signal; the digital signal processing module is used for carrying out digital signal processing calculation to obtain an excitation signal; the DAC module is used for carrying out digital-to-analog conversion; the power divider is used for adjusting the phase of the excitation signal; the exciter comprises four Kickers with electrodes, a power amplifier, a low-pass filter and a matched load and is used for applying a transverse excitation signal to the beam current, and the problems that in the prior art, a transverse feedback system Kicker occupies a large longitudinal space, the system is complex, and precision and efficiency are low are solved.

The invention relates to the technical field of turning equipment, and particularly discloses a wave-tooth composite gasket production device and process, the wave-tooth composite gasket production device comprises a machine body, a cutting mechanism and a rotating mechanism, the cutting mechanism comprises a mounting seat, a cutter and a first elastic part, the cutter is provided with a cutting surface, and when a gasket is cut, the first elastic part elastically presses the cutter on the gasket; a lifting mechanism is further arranged on the mounting base and comprises a position detector, a controller and a lifting driving part, the lifting driving part drives the tool to ascend and descend, the position detector detects the position of the tool, and when cutting resistance borne by the tool is increased and the tool is jacked up to a preset position, the controller controls the lifting driving part to drive the tool to ascend; the cutter no longer cuts the gasket. During use, when the cutting resistance borne by the cutter is increased, the cutter can move upwards to trigger the controller to control the lifting driving piece to drive the cutter to ascend, so that the cutter does not make contact with the wave-tooth composite gasket any more, the cutter is prevented from cutting under the large cutting resistance, and the service life of the cutter is prolonged.

The inductive position detector includes: a stator having a wiring board; a rotor having a non-conductive component disposed in opposed relation to the stator and rotatable relative to the stator about a rotation axis; a conductor pattern held by the non-conductive component so as to have cyclicity (geometrical periodicity) circumferentially about the rotation axis, and movable to pass through a rotation track defined about the rotation axis as the rotor is rotated; and a plurality of chip inductors surface-mounted on a major surface of the wiring board of the stator in opposed relation to the rotation track so as to have different spatial phases with respect to the conductor pattern, and respectively serving as detection coils that detect a magnetic field change occurring due to the passage of the conductor pattern.

An electrical device for a rotational device of a human-powered vehicle comprises a force sensor, a position detector, and an electronic controller. The force sensor is configured to measure a force applied to the rotational device. The position detector is configured to detect a rotational position of the rotational device. The electronic controller is configured to adjust a measurement value of the force sensor based on the rotational position detected by the position detector.

The invention belongs to the field of nuclear power stations, and particularly relates to a reactor measuring coil sectional type rod position detector and a measuring method thereof, the detector comprises a measuring coil, a temperature compensation coil, a temperature compensation coil support groove and a coil holder; the measuring coil is wound on the coil holder, a temperature compensation coil supporting groove is formed in the coil holder, and the temperature compensation coil is wound in the temperature compensation coil supporting groove; the measuring coil is divided into N sections, and N is an integer greater than or equal to 2; each section of measuring coil is a continuous coil, and the N sections of measuring coils have no overlapped part. According to the invention, the rod position measurement precision, the rod position measurement reliability and the rod position measurement applicability can be greatly improved.

The utility model provides a multi-axis shape and position error synchronous measuring device. The multi-axis shape and position error synchronous measuring device comprises a laser module, a light splitting steering system, a two-dimensional position detector A arranged on a sliding block of a first linear guide rail, a two-dimensional position detector B arranged on a sliding block of a second linear guide rail, and a two-dimensional position detector C arranged on a sliding block of a third linear guide rail, initial laser output by the laser module is divided into a first Y-axis collimated light beam, a second Y-axis collimated light beam and a third X-axis collimated light beam through the light splitting steering system, and the first Y-axis collimated light beam, the second Y-axis collimated light beam and the third X-axis collimated light beam enter the two-dimensional position detector A, the two-dimensional position detector B and the two-dimensional position detector C respectively. According to the utility model, multiple form and position errors such as parallelism and verticality between the guide rails can be measured at the same time through one-time measurement, one-by-one measurement is not needed, and the measurement efficiency is greatly improved.

A system and method are provided for determining a location of a laser using a diffraction grating. The system includes a lens that projects diffraction patterns from the diffraction grating as an image of diffraction peaks onto a plane. Optical sensors then sense the diffraction peaks. A processor connected to the optical sensors applies a laser position determination method to determine the laser location. In the method, the processor obtains the diffraction peak measurements from the optical sensors and applies a transform to arrange the diffraction peaks into a grid of regularly spaced peaks. The processor then applies convolution kernels to analyze the grid of regularized peaks to to determine a position of a zeroth order diffraction central peak that is used to calculate the angle of incidence of the axis of the laser beam to determine the laser position.

The invention discloses a warehousing system based on AMHS and a warehousing method thereof, and the warehousing system comprises a goods shelf which is used for storing material frames; the adsorption device comprises a sliding table module and an adsorption disc, and the sliding table module is used for driving the adsorption disc to move front and back so as to grab or release the material frame; the connection conveying device comprises a lifting platform, a transverse moving platform and a bearing platform, the bearing platform conveys the material frame through a transmission belt, and the bearing platform is provided with an in-place detector, a first in-place sensor, a second in-place sensor and a butt joint sensor; a butt joint sensor is arranged on one side of the bearing platform, and a butt joint reflecting plate is arranged in the positioning jacking working groove and corresponds to the butt joint sensor. The bearing platform is connected with the adsorption device through the up-down module. And the working platform comprises a positioning jacking working groove, and the conveying belt is responsible for moving the position of the material frame. The system has the beneficial effects that the whole process of the system is automatically joined, the transfer efficiency is remarkably improved, manual intervention is reduced, and the system is suitable for high-frequency industrial logistics scenes.

An agricultural machine includes a traveling vehicle body, a position detector to detect a position of the traveling vehicle body, a lifting device to link a working device to the traveling vehicle body, and an automatic operation controller to perform an automatic operation to cause the traveling vehicle body to travel and cause the working device to perform an agricultural job based on a travel route and the position of the traveling vehicle body. The lifting device is operable to, during the automatic operation, place the working device in a work position in which the working device performs the agricultural job, and the automatic operation controller is operable to cause the lifting device to keep the working device in the work position even after stopping the traveling vehicle body and / or the working device to end the automatic operation at a location short of an unworked area of the agricultural field.

The invention relates to a beam feedback system based on radio frequency direct acquisition, which comprises a beam position detector, a sum and difference device, a front-end processing module, a feedback processor and an amplification excitation module which are connected in sequence, the sum-difference device is used for determining a horizontal position signal, a vertical position signal and a longitudinal position signal of the beam bunch according to the position signal of the beam bunch, the front-end processing module is used for pre-processing the position signals of the beam bunch, and the feedback processor is used for sampling the pre-processed position signals of the beam bunch; the feedback module is used for receiving a beam bunch and generating a horizontal feedback signal, a vertical feedback signal and a longitudinal feedback signal of the beam bunch, and the amplification excitation module is used for amplifying the feedback signals of the beam bunch and acting the amplified feedback signals of the beam bunch on the beam bunch, so that the instability of the beam is inhibited.

The invention relates to a coarse-fine integrated pointing mechanism for optical communication, and belongs to the field of optical communication equipment. The problems that in the prior art, a coarse pointing mechanism and a fine pointing mechanism are separated, so that the size is large, and cooperative work efficiency is low are mainly solved. The technical scheme is characterized in that the coarse pointing function and the fine pointing function are integrated into a single compact structure, large-range coarse adjustment around an azimuth axis y1 is achieved through a rotary table on a base, and high-precision fine adjustment around a pitch axis x2 and an azimuth axis y2 is achieved through a reflector supporting frame and a reflector on a mounting piece; the first motor, the second motor and the third motor respectively drive; full-state sensing is performed through a multi-axis angle sensor, a light beam position detector and a temperature monitoring module; and the controller performs real-time thermal error feedforward compensation on the driving instruction of the fine pointing motor according to the temperature monitoring data and a pre-stored thermal deformation compensation model. The mechanism is mainly used in a free space optical communication system, and realizes rapid capture, high-precision alignment and stable tracking of light beams.

An outboard motor includes a steering mechanism including a pinion located in a central portion of an outboard motor body in a right-left direction and operable to rotate together with the outboard motor body, a rack operable to linearly move to rotate the pinion, and a rack position detector on a first side of the rack opposite to the pinion to detect a position of the rack.

The utility model belongs to the technical field of printer auxiliary equipment, and relates to a glass flat printer which comprises a width gauge, a first guide limiting piece, a clamping centering device, a second guide limiting piece, a position detector and a uv printer which are sequentially and linearly installed on a supporting and conveying main body, and a monitoring system is installed on the side, away from the position detector, of the uv printer. The width gauge is erected at the end of the supporting and conveying body, and the supporting and conveying body, the width gauge, the clamping and centering device, the position detector, the uv printer and the monitoring system are all in communication connection with the control cabinet. According to the utility model, through a continuous and linear working process, manual intervention and waiting time are reduced, so that the glass can be printed more quickly, the overall working efficiency is improved, the productivity is improved, and continuous flat plate printing of the glass is realized.

The invention discloses a multi-hole position tolerance detection device and a position tolerance detection method, the multi-hole position tolerance detection device comprises a bottom rack, a clamping module, a measuring module and a displacement mechanism, the clamping module is installed at the center of the top of the bottom rack, the bottom of the displacement mechanism is installed at two sides of the bottom rack, the measuring module is installed on the displacement mechanism, and the displacement mechanism is installed on the bottom rack. The measuring module comprises a fastening unit, a first offset unit, a second offset unit and a detection unit, the fastening unit is connected with the displacement mechanism, the fastening unit and the first offset unit are clamped in the length direction and can slide in the length direction, and the first offset unit and the second offset unit are clamped in the width direction and can slide in the width direction; the detection unit comprises a displacement detection piece and a position degree detection piece which are respectively used for detecting offset and workpiece hole positions. According to the invention, the offset of the detection unit is acquired through the first offset unit and the second offset unit by using the offset measurement module, so that the position degree error is determined, and the detection precision of the position degree error of multiple holes is improved.

The invention provides a button type signal feed-through for a beam position detector. The button type signal feed-through comprises a shell, a composite unit and an insulator. The composite unit comprises a button electrode and an inner conductor, and the button electrode is suitable for sensing an electromagnetic field signal generated by charged particle beams in the vacuum cavity; the inner conductor vertically and integrally extends from the center of the button electrode, a flange is arranged near one end, close to the button electrode, of the inner conductor, and the inner conductor is suitable for transmitting beam electromagnetic field signals. The insulator is sleeved on the inner conductor and comprises a first section cylinder and a second section cylinder, and the front end face of the first section cylinder is welded and fixed with the flange of the inner conductor; the second section of cylinder body extends outwards in the radial direction from the rear end of the first section of cylinder body, the circumferential outer surface of the second section of cylinder body is welded and fixed with the shell, and the insulator is suitable for fixed support and electrical insulation, so that smooth transition of transmission impedance and vacuum sealing are realized. The invention further provides a preparation method of the charged particle beam position detector and a charged particle beam position detector structure.

The invention provides a reciprocating tool and a method of controlling an electric motor of the reciprocating tool. One aspect of the present invention relates to a reciprocating tool comprising a reciprocating member, an electric motor, a transmission device, a control circuit, a drive circuit, a position detector, and a signal cut-off circuit. The drive circuit (i) receives at least one drive signal, and (ii) drives the electric motor in accordance with the received at least one drive signal. The position detector outputs a position detection signal whenever the reciprocating member reaches a predetermined position during at least one reciprocating operation. The signal cut-off circuit cuts off at least one drive signal for the drive circuit in response to the position detector outputting the position detection signal.

The embodiment of the invention provides a muon angle measurement cross positioning method and device based on simulation, a medium and equipment, and the method comprises the following steps: constructing a muon flux model based on the distribution of muons on an azimuth angle and a zenith angle; constructing an angle measurement cross positioning model, and calculating the coordinates of the positioning detector through the coordinates of the reference detector and the coordinates of the positions where the muons penetrate through the positioning detector by using the angle measurement cross positioning model; an angle measurement cross positioning error model is constructed based on the angle measurement cross positioning model, and the value of a geometric precision factor is calculated by using the angle measurement cross positioning error model; constructing an angle measurement cross positioning physical simulation model; and operating the angle measurement cross positioning physical simulation model, generating a positioning result based on an effective event output by the angle measurement cross positioning model, and performing precision analysis on the positioning result. According to the scheme, the physical simulation model is positioned through angle measurement cross, so that the efficiency of a verification link before an in-situ experiment is improved, and the experiment cost is reduced.

The invention provides a track longitudinal resistance on-line monitoring circuit, method and system, and the circuit comprises a position detector which is independently powered and is disposed at the front end of a to-be-detected track; the voltage measuring module and the track are arranged in parallel; the detection circuit is connected with the track in series and comprises a first branch circuit, a second branch circuit and a third branch circuit which are arranged in parallel, the first branch circuit comprises a control branch circuit, the second branch circuit comprises a current measurement module and a diode which are arranged in series, and the third branch circuit comprises an insulation joint. Real-time monitoring of the rail longitudinal resistance can be carried out even when an urban rail power supply system runs online, the control branch can freely adjust starting and stopping of the detection process, the control branch can be matched with the position detector to avoid the influence of traction current generated when a train runs on a measurement result, the accuracy degree of the monitoring result is greatly improved, and the reliability of the monitoring result is improved. The method has the remarkable advantages of high detection precision, flexibility in use, high efficiency, wide application range and the like.

The disclosure improves the quality of seams in sewing using a sewing machine, and includes: a holder holding fabric; a driver being detachable from a bed of a sewing machine and driving the holder along an upper surface of the bed; a position detector detecting a position of a sewing needle of the sewing machine in an up-down direction; and a controller controlling driving of the holder, which is performed by the driver, based on a detection result of the position detector.

A sewing machine external unit includes: a holder holding fabric; a driver being detachable from a bed of a sewing machine and driving the holder along an upper surface of the bed; a pressing member moving in an up-down direction according to movement of a sewing needle in the up-down direction, pressing the fabric while the sewing needle is stuck in the fabric, and rising together with the sewing needle in response to the sewing needle coming out of the fabric and rising; a position detector detecting a position of the pressing member in the up-down direction; a signal output part outputting a signal to the sewing machine; and a controller outputting a needle drive signal for driving the sewing needle from the signal output part to the sewing machine, and controlling driving of the holder and / or the sewing needle based on a detection result of the position detector.

The invention discloses an automatic door opening and closing device of a dish-washing machine, the dish-washing machine and a control method, the automatic door opening and closing device comprises a shell, the shell is provided with a telescopic rod, and the telescopic rod telescopically moves between an extension position and a retraction position under the action of a driving mechanism; the telescopic end of the telescopic rod is provided with a lock catch mechanism for locking a lock hook on the machine door, and the shell is provided with a locking mechanism for locking the lock catch mechanism. And a position detector for detecting and positioning the telescopic rod is arranged on the shell. The position detector is installed on the automatic door opening and closing device to detect and position the extending position of the telescopic rod, so that the telescopic rod can stretch out and draw back to the initial position of the non-limiting position, and then the effect of step-by-step action of machine door closing and locking is achieved; the problems that the door cannot be opened smoothly due to too large locking force when the door is opened, and the lock catch mechanism is worn too much when the door is closed are solved.

The invention discloses a visible light positioning method based on a single light source base station and double photosensitive position detectors. The method comprises: constructing a visible light positioning system; defining a world coordinate system, a PSD coordinate system and a PSD imaging coordinate system; calibrating two PSD internal parameters in the visible light positioning system by using a Zhang Zhengyou calibration method and an asymmetric dot calibration plate; the world coordinates of the LED light source and the external parameters of the PSD are calibrated; and determining the real-time coordinates of the mobile carrier in the world coordinate system. The method has the advantages that the double PSD receivers and the single light source base station are used for positioning the mobile carrier, positioning coordinate calculation can be carried out as long as the mobile carrier loaded with the double PSD receivers is located in the coverage area of one light source base station, operation is safe, easy and convenient, the degree of dependence on the light source density is reduced, and the applicability of the visible light positioning technology is enhanced.

An optical image stabilization apparatus includes a first position detector and a second position detector configured to detect a position of a movable member relative to a base member in directions of first and second detection axes that are not orthogonal, a first driving unit and a second driving unit configured to drive the movable member relative to the base member in directions of first and second drive axes. The first or second detection axis is different from the first and second drive axes. An intersection of the first and second drive axes is closer to a center of gravity of a movable unit including an element fixed to the movable member among an optical element, the movable member, and the first and second driving units, than an intersection of the first and second detection axes.

A system and method of assembly for a double-injection molded mouse housing for a mouse comprising a first injection molded inner housing shell of ocean bound plastic (OBP) of the double-injection molded mouse housing, a second injection molded outer housing shell of a plastic with higher thermal stability than the OBP to form the double-injection molded mouse housing, a keyplate panel operatively coupled to the top of the double-injection molded mouse housing, and a bottom case panel operatively coupled to the bottom of the double-injection molded mouse housing. The double-injection molded mouse housing components including a printed circuit board with microcontroller, position detector, scroll wheel detector and other components.

An assistance system for an agricultural machine includes a position detector provided in or on the agricultural machine to detect a vehicle body position that is a position of the agricultural machine, a map creator configured or programmed to create an external map which indicates an external area outside the agricultural field and includes a periphery of the agricultural field, and an assistance device configured or programmed to assist the agricultural machine based on the vehicle body position detected by the position detector and based on the external map created by the map creator. The map creator is configured or programmed to create an internal map of an internal area of the field in addition to the external map to create an entire map of the inside of the field and the outside of the field.

The invention relates to the technical field of optical free-form surface non-contact measurement, and discloses a free-form surface contour detection method and device based on confocal fixed-focus normal vector measurement, and the detection device comprises a normal vector measurement sensor, a precise motion platform and a computer. Synchronously acquiring position information of the laser interferometer, light spot centroid offset of a normal measurement light beam of the two-dimensional position detector and light intensity information of the focus detector by using a data acquisition card; wherein the precise motion platform comprises a scanning workpiece table, an objective lens driver, a Z-direction macro displacement guide rail and a motion controller, and the motion controller is used for controlling the scanning workpiece table, the objective lens driver and the Z-direction macro displacement guide rail to execute high-precision displacement; and the computer sends a scanning measurement sampling point of the measured free-form surface to the motion controller so as to realize scanning measurement of the measured free-form surface. According to the invention, the surface contour of the free-form surface can be reconstructed by fitting the normal vector of the focus position, and high-precision detection of the contour of the free-form surface is realized.

A position detector applies an image to be inspected to a position detection model generated by machine learning using image information of a training image to calculate a score for a portion of an image to be inspected. The position detector specifies a portion of the image where the calculated score is a score that satisfies a predetermined relationship to detect the position of a metal part in the image to be inspected. A position outputter outputs the position of the metal part detected by the position detector.

The embosser-laminator unit comprises an embossing roller (21), supported on a stationary supporting structure (45), and an applicator roller (61) adapted to apply a glue on an embossed web-like material sent around the embossing roller (21). The applicator roller (61) is carried by a slide (41) which is movable with respect to the supporting structure (45) to move towards and away from the embossing roller (21). The embosser-laminator further comprises an actuation mechanism (51, 67), adapted to command a movement of juxtaposition and distancing of the slide (41) and the applicator roller (61) with respect to the embossing roller (21), and a position detector device (69), adapted to detect the relative position between the slide and the stationary supporting structure. A detection arrangement (75) is adapted to detect a contact condition between the applicator roller (61) and the embossing roller (21). A method for positioning the applicator roller (61) with respect to the embossing roller (21) is further described.

The invention discloses a multi-mode nanometer measurement system and method based on terahertz scattering type scanning near-field optical microscopy and multi-frequency electrostatic force microscopy, and belongs to the technical field of near-field imaging, the measurement system comprises an AFM main body, a terahertz source, an optical path system, a terahertz detector, a multi-frequency signal generator and two phase-locked amplifiers; terahertz waves emitted by the terahertz source reach the terahertz detector through the optical path system, and near-field optical signals are obtained. The AFM comprises a metal coating probe; the multi-frequency signal generator generates sinusoidal signals with frequencies of omega1 and omega2; a sample is placed on the scanner, and the cantilever beam is controlled to vibrate at the frequency omega 1; an alternating voltage with the frequency of omega 2 is applied to a metal coating probe arranged at the top end of the cantilever beam; laser emitted by the laser is reflected to the light spot position detector through the cantilever beam, and morphology and electrostatic force signals are obtained through the two lock-in amplifiers respectively. According to the invention, a morphology signal, an optical signal and an electrostatic force signal can be synchronously obtained through single scanning.

The utility model relates to a liquid flow metering device, subassembly and system.The liquid flow metering device comprises a measuring chamber, a floater subassembly, a sleeve and an electrical subassembly, a measuring chamber body is hermetically connected with a liquid inlet pipeline and a liquid outlet pipeline, the liquid inlet pipeline extends into the measuring chamber body, and the liquid outlet pipeline extends into the measuring chamber body; a liquid outlet at the tail end faces upwards; the floater assembly comprises a floater and a floater connecting rod integrally connected with the floater, the floater is arranged at a liquid outlet in the tail end of the liquid inlet pipeline, and the tail end of the floater connecting rod is connected with the detection part; the lower end of the sleeve is communicated with the measuring cavity body, the tail end of the floater connecting rod extends into a guide channel in the sleeve from the lower end of the sleeve, and a position detection device is arranged in the upper end of the sleeve; the electrical assembly comprises a shell and an electrical module, and the electrical module receives a floater height detection signal sensed by the position detection device. The metering device provided by the embodiment of the utility model is low in cost and accurate in metering.