522 results about "Electro-optical sensor" patented technology

A hair styling appliance comprising an optical sensor configured to make two or more measurements of light received from a section of hair being styled by the hair styling appliance, and a processor configured to determine a speed of movement of the section of hair relative to the hair styling appliance based on the two or more measurements. The measurements produce successive images of the section of hair (figs. 12a-12b). The times at which the images were generated are obtained and used with determined displacements of the section of hair in the images to determine a relative speed of movement of the hair. The optical sensor may be e.g. a camera or an array of photosensors. The appliance may be a hair straightener, curler or brush.

The invention discloses a concept for improved position and orientation determination of a plurality of objects each marked with at least one optoelectronically detectable marker, in which holographic optical elements are introduced into two-dimensional flat markers, at which ambient light is reflected back with sufficiently high intensity even at high scattering angles relative to the surface normal of the two-dimensional flat markers.For this purpose, it is proposed to detect light reflected by holographic optical elements (HOE; 21, 22, 23) applied to the markers (20) in an optoelectronic sensor (32) and to generate a two-dimensional reflection image, and to detect, in an image processing device (34), on the basis of the spectrally resolved local intensity distribution of the two-dimensional reflection image detected by the optoelectronic sensor (32), differences between the reflection behavior of the optoelectronically detectable markers (20) of the current position and orientation of the plurality of objects (100; 200) and the reflection behavior of the optoelectronically detectable markers (20) in a reference configuration of the plurality of objects (100; 200), and to detect deviations in the overall configuration of the plurality of objects (100; 200) relative to the optoelectronic detection device (30) by evaluating the detected differences. determine.

The invention discloses an intelligent pet toilet in the technical field of pet supplies, and the intelligent pet toilet comprises a support which is provided with a bin body and a driving assembly used for driving the bin body to rotate on the support; a drain outlet is formed in the side wall of the bin body, and a discharge outlet is formed in the bottom of the support; a photoelectric sensor and a controller are arranged on the support, the photoelectric sensor comprises a transmitting end and a detecting end which are located on the two sides of the bin body respectively, and a plurality of open holes are formed in the side wall of the bin body; light beams emitted by the emitting end of the photoelectric sensor can irradiate the detection end through the multiple open holes formed in the upper portion of the side wall of the bin body, the controller can accurately judge the movement position of the bin body through the open holes formed in different positions, the control accuracy of the bin body is improved, the situation that the bin body offside or is not in place is avoided, and the working efficiency is improved. Normal discharge of excrement is ensured, and normal operation of the pet toilet is ensured.

The utility model provides a concrete surface flatness control device, which relates to the field of concrete flatness control and comprises an adjusting control frame and a concrete pouring mold, the concrete pouring mold is attached to the end face of the inner side of the adjusting control frame, and the lower end of the adjusting control frame is connected with a discharging frame through an electric push rod. A slope leveling plate is welded to the lower surface of the discharging frame, a rotating rod is in shaft connection with the inner side cavity wall of the discharging frame, a scraping plate is fixed to the rod face of the rotating rod, a motor is connected to the left side end of the rotating rod, a discharging notch is formed in the front end face of the discharging frame, and a collecting frame is inserted into the front end face of the discharging notch. The rear side of the discharging frame is slidably connected with a light shield through an electric guide rail, and an optical fiber photoelectric sensor is installed on the inner wall of the upper end of the light shield. The concrete leveling device solves the problems that in the prior art, redundant concrete discharged by leveling of a leveling plate easily overflows the surface of the leveling plate and flows into the leveled concrete surface, and it is difficult to ensure that the flatness of the concrete surface meets the standard.

The invention provides a distributed optical fiber sound wave sensing chip, system and method based on polarization state detection. The chip comprises an optical pulse source module, a first spot size converter, a second spot size converter and a high-speed polarization analysis module, the optical pulse source module generates pulse light and outputs the pulse light to the optical fiber circulator and the sensing optical fiber through the first spot size converter; the second spot size converter receives scattered light returned from the sensing optical fiber and the optical fiber circulator and inputs the scattered light into the high-speed polarization analysis module; the high-speed polarization analysis module comprises a polarization beam splitting rotator, four interference structures and six photoelectric sensors; the polarization beam splitting rotator divides the scattered light into a TE mode and a TM mode, rotates the TM mode to the corresponding TE mode and then outputs the scattered light through two output ports of the polarization beam splitting rotator; each output end of the polarization beam splitting rotator is connected to one photoelectric sensor and one input end of the four-way interference structure; the four-way interference structure is provided with four output ends which are respectively connected to the rest photoelectric sensors.

A method for non-contact safety at a cooperation area (48) of a machine (40) is specified, wherein an access area (44) for a worker (46) is arranged on a first side of the cooperation area (48) and a working area (42) of the machine (40) is arranged on a second side, wherein several protective fields (38) configured in the vicinity of the cooperation area (48) are monitored for protective field intrusions by at least one optoelectronic sensor (10) and at least two of the protective fields (38) are arranged in a first sequence from the first side, so that a worker (46) intrusions into these protective fields (38) successively when approaching the cooperation area (48), and wherein the protective field intrusions are evaluated in order to safeguard the machine (40) in the event of an impermissible combination of protective field intrusions.In this process, at least two of the protective fields (38) are arranged in a second sequence from the second side, so that the machine (40) intervenes in these protective fields (38) one after the other when approaching the cooperation area (48).

Apparatus for performing vector-by-vector multiplication in an optical domain, comprising: a plurality of light signal generators, each arranged to emit a beam of light having a different respective carrier wavelength modulated with an input signal modelling a respective variable of a vector of variables; one or more sets of light modulator elements, wherein each light modulator element in each set is arranged to receive the beam of light modulated with a different one of said input signals, and apply a corresponding weight from a vector of weights in order to produce a weighted optical signal; a respective photosensor element for each of said sets; and one or more optical combining elements arranged to direct the weighted optical signals of each set onto the respective photosensor element and thereby produce a respective output in the form of an analogue electronic signal summing the weighted optical signals of the respective set.

The technology disclosed in this patent document can be used to construct devices with opto-electronic circuitry for sensing and identification applications, to provide untethered devices for deployment in living objects and other applications, and to provide fabrication techniques for making such devices for commercial production. As illustrated by specific examples disclosed herein, the disclosed technology can be implemented to provide fabrication methods, substrates, and devices that enable wireless, inorganic cell-scaled sensor and identification systems that are optically-powered and optically-readout.

Pixels with multiple operating modes (and associated systems, devices, and methods) are disclosed herein. In one embodiment, a pixel arrangement includes a pixel including a first photosensor, a second photosensor, a floating diffusion, a first event vision sensor (EVS) connection coupling the pixel to first EVS readout circuitry and configured to receive first charge from the first photosensor, and a second EVS connection coupling the pixel to second EVS readout circuitry and configured to receive second charge from the second photosensor. The pixel further includes a first transfer transistor selectively coupling the first photosensor to the floating diffusion, a second transfer transistor selectively coupling the first photosensor to the first EVS connection, and a third transfer transistor selectively coupling the second photosensor to the floating diffusion. In some embodiments, the pixel further includes a fourth transfer transistor selectively coupling the second photosensor to the second EVS connection.

The invention discloses a pump lamp tube fault accurate diagnosis system based on multi-parameter data analysis, and relates to the technical field of industrial automation monitoring, and the system comprises a multi-parameter acquisition and unique fault judgment algorithm, a multi-parameter acquisition module is connected with a high-precision current transformer, an infrared temperature sensor, a miniature pressure sensor, a photoelectric sensor and the like, and the multi-parameter acquisition module is connected with the unique fault judgment algorithm; parameters such as current, voltage, lamp tube surface temperature, internal gas pressure and luminous intensity during operation of a pumping lamp tube are accurately acquired, denoising and filtering parameters and a normalization method based on lamp tube rated parameter values are set by the preprocessing unit, and a fault diagnosis model is constructed by the data analysis module by selecting multiple learning algorithms. The collected and preprocessed parameter vector is X, a weight vector W and a bias item b are obtained through model training, a comprehensive score S is calculated, a fault judgment threshold T is set through a large amount of sample data training, and if S is larger than or equal to T, it is judged that a lamp tube has a fault, and a fault type mark is output; if Slt; and T, judging normal operation of the lamp tube.

The utility model discloses a spicy strip arranging and conveying line, which belongs to the technical field of spicy strip production and comprises a centrifugal material arranging machine, and a discharging and conveying mechanism is arranged at an outlet of the centrifugal material arranging machine. An outlet of the discharging conveying mechanism is connected with a first differential conveying belt, and a photoelectric sensor is arranged above the outlet. The tail end of the first differential conveyor belt is connected with a second differential conveyor belt; a material returning conveying belt is arranged on the side edge of the first differential conveying belt; a material picking device is arranged above the first differential conveying belt; the centrifugal feeding machine comprises a rotatable rotating basin, and a rotatable centrifugal disc is arranged in the rotating basin; an annular supporting edge for conveying spicy strips is arranged on the edge of the rotating basin; the rotating basin is horizontally arranged; the centrifugal disc is obliquely arranged in the rotating basin; one end of the centrifugal disc is lower than the annular supporting edge of the rotating basin, and the other end is flush with or higher than the annular supporting edge of the rotating basin. According to the device, disordered spicy strips can be automatically arranged in order, the spicy strips with different lengths are removed, then the spicy strips are conveyed into a packaging machine at intervals, and operation is reliable and stable.

The invention discloses an azimuth gamma testing device and application, and belongs to the technical field of oil and gas logging equipment, the testing device comprises a PC, a rotating table, a rotating table motor, a motor driver, a rotating speed operator, a conductive slip ring and a stabilized voltage supply, the rotating table is sleeved with a rotating disc, and the rotating disc is fixedly connected with a laser; a dial is fixedly connected to the outer circumference of the rotating disc, one end of the rotating table is connected with the rotating table motor, the other end of the rotating table is connected with the conductive slip ring, the conductive slip ring is electrically connected with the azimuth gamma instrument to be measured, the azimuth gamma instrument to be measured is electrically connected with the stabilized voltage supply and the PC, and the rotating speed operator is electrically connected with the motor driver. The motor driver is connected with the rotary table motor, a photoelectric sensor is fixedly connected to the rotary table, and the photoelectric sensor is electrically connected with the azimuth gamma instrument to be detected. According to the invention, double evaluation of the azimuth measurement precision and the pulse counting time correctness of the azimuth gamma instrument can be accurately checked.

The utility model provides an automatic deviation rectifying knife edge belt, which belongs to the field of conveying belt equipment and comprises a conveying table, an open groove is arranged on the conveying table, a transmission shaft is rotatably arranged in the open groove, a rolling wheel which rolls transversely is rotatably arranged on the transmission shaft, a conveying belt is rotatably arranged on the rolling wheel, and a plurality of deviation rectifying assemblies used for rectifying deviation of the conveying belt are symmetrically arranged on the conveying table. During use, the photoelectric sensor and the two-way air cylinder are connected with the PLC control cabinet, then the transmission shaft is started, the transmission shaft is used for driving the conveying belt to rotate, the conveying belt is used for conveying, when the conveying belt deviates from the transmission shaft and deviates towards one side, the photoelectric sensor is interfered, signal feedback is conducted, and then the two-way air cylinder is started. The output end of the two-way air cylinder drives the limiting rod to move, the limiting rod drives the rolling shaft to be attached to the side edge of the conveying belt, and the conveying belt is adjusted in the middle.

A light emitting display device includes: a display panel including: a display area; and a first pixel and a second pixel at the display area; and an optical element on a rear surface of the second pixel. The second pixel includes: a photosensor area; and a shielding layer at the photosensor area, the shielding layer being transparent and conductive.

A light emitting display device includes: a display panel including: a display area; and a first pixel and a second pixel at the display area; and an optical element on a rear surface of the second pixel. The second pixel includes: a photosensor area; and a shielding layer at the photosensor area, the shielding layer being transparent and conductive.

The invention relates to an optical fiber sensing system and an optical signal demodulation method. The optical fiber sensing system comprises a plurality of optical fiber sensors; a light source emitting a light signal; the optical transmission module is used for dividing the optical signal into multiple paths of first sub-signals and inputting the first sub-signals into the optical fiber sensors, and is also used for receiving multiple paths of second sub-signals returned by the optical fiber sensors and coupling the second sub-signals to the optical demodulation module; the optical demodulation module comprises a plurality of sub-demodulation units, and one sub-demodulation unit is used for demodulating one path of second sub-signal; the sub-demodulation unit comprises a first photoelectric sensor, a second photoelectric sensor with a first filter and a third photoelectric sensor with a second filter, and the filtering wavelengths of the first filter and the second filter are different. Through the design that the first filter plate and the second filter plate filter wavelengths, the measuring range of the optical fiber sensing system is expanded to the combination of the first filter plate and the second filter plate, so that the purpose of increasing the measuring range is achieved.

The utility model relates to a product inspecting and removing device which comprises a horizontal conveying belt, and a pushing assembly and a backup plate are arranged on the same side of the conveying belt. The product checking and removing device further comprises a first photoelectric switch assembly, a second photoelectric switch assembly and a PLC module. The first photoelectric switch assembly comprises a first stand column, a cross beam and a first photoelectric sensor. The cross beam is vertically arranged above the conveying belt, can slide up and down along the stand columns and is selectively fixed on the stand columns; the first photoelectric sensor is movably arranged on the cross beam; the second photoelectric switch assembly comprises a second stand column, a second photoelectric sensor and a third photoelectric sensor, the PLC module is connected with the first photoelectric sensor, the second photoelectric sensor and the pushing assembly. The device has the advantages that the device is suitable for products with rectangular sections of different specifications and models, simple in structure and high in adaptability, and the rejection efficiency and the success rate of unqualified products on an assembly line can be guaranteed.

The invention relates to the technical field of space environment detection, in particular to a photoelectric sensor for space dust particle size detection, which comprises an optical signal collection assembly and an electric signal conversion and acquisition assembly, and is characterized in that the optical signal collection assembly comprises a support, a front pressing plate, an optical filter and a sensor; the electric signal conversion and acquisition assembly comprises a circuit box body, a photoelectric conversion detector, a signal processing circuit board, a signal wire passing sleeve and a circuit box cover. The support of the particle size sensor is used as a main structure, and other structures are subjected to split design and integrated precision assembly, so that the processing difficulty of a complex structure is reduced, the machining precision of a single structure is effectively improved, and the form and position processing error of each structural part is effectively controlled; the non-imaging compound paraboloid condensation sensor is independently designed and processed, so that the processing precision of a product is improved; and vibration reduction design is independently carried out on internal structural components, so that the mechanical impact resistance of weak parts is improved.

The utility model discloses a photoelectric sensor mounting rack, which relates to the technical field of photoelectric sensor mounting, and comprises a vertical rod, an L-shaped fixing plate and a photoelectric sensor, the vertical rod and the L-shaped fixing plate are vertically arranged, the lower part of the vertical rod is provided with a mounting bolt and a fixing nut, and the L-shaped fixing plate is fixedly connected with the photoelectric sensor under the limiting action of a brake block. The L-shaped fixing plate can move up and down along the vertical sliding groove in the vertical rod, the long edge of the L-shaped fixing plate moves left and right under the limiting effect that the transverse sliding groove is matched with the brake block, and after the L-shaped fixing plate reaches the set position, the brake block and the brake bolt are screwed. The photoelectric sensor on the short edge of the L-shaped fixing plate is adjusted, front-back movement is achieved under the limiting effect that the cylindrical screw is matched with the longitudinal sliding groove, and therefore adjustment in the X direction, the Y direction and the Z direction is achieved, adjustment of the position and the direction is achieved, and the installation and adjustment efficiency is high.

An optoelectronic sensor for the detection of objects in a monitored zone has a light transmitter for transmitting a transmitted light beam, a scanning unit rotatable about an axis of rotation for the periodic scanning of the monitored zone by the transmitted light beam, a light receiver for generating a received signal from light beams remitted by objects in the monitored zone, an angle measurement unit for determining the angular position of the scanning unit relative to the sensor, and an evaluation unit that is configured to generate measured values with reference to the received signal that indicate whether and in which direction an object has been detected. A device is configured to determine an angular speed of the scanning unit about the axis of rotation and a correction unit is configured to determine a self-rotation of the sensor with respect to the axis of rotation of the scanning unit.

The invention discloses a reusable blood coagulation detection device based on a droplet microfluidic technology and a use method, and belongs to the technical field of droplet microfluidics, and the device comprises a microfluidic chip, an injection pump and an optical detection device. The micro-fluidic chip is used for generating and capturing blood droplets and comprises a PDMS layer, a three-dimensional electrode and a glass substrate, the PDMS layer and the glass substrate are bonded, and the three-dimensional electrode is poured in a second flow channel of the PDMS layer. The injection pump is used for controlling constant flow and is connected with an inlet of the PDMS layer. The optical detection device is used for detecting the blood coagulation process in the micro-fluidic chip and comprises a light source, a first lens, a second lens and a photoelectric sensor. The liquid drops in the micro-fluidic chip are controlled by applying an external electric field, the blood liquid drops are captured and released, the blood coagulation process is monitored by adopting an optical method, and a new thought is provided for blood coagulation function detection. The chip is prevented from being blocked when blood is coagulated mainly in a mode of wrapping the blood by an oil phase, and possibility is provided for flushing and reusing the chip.

The invention relates to a lighting device (41) for an optoelectronic sensor having at least one lighting path (45a, 45b), wherein the lighting path (45a, 45b) comprises at least one light-emitting unit (46a, 46b) for emitting transmitted light and a detector (50a, 50b) for detecting the transmitted light or a current driving the light-emitting unit, and wherein the lighting device (41) comprises at least one driver (49a, 49b) with a driver output, which is connected to the light-emitting unit (46a, 46b) for control by means of a current signal, and a modulator (55) connected to a driver input for modulating the current signal, and with a delay detection circuit (53) and at least one delay compensation circuit (47a, 47b), and wherein - The detector (50a, 50b) is connected to the delay detection circuit (53) for providing a detector signal, - The delay detection circuit (53) is designed and arranged to measure a time delay of the detector signal relative to the modulation signal (Mod), - The delay compensation circuit (47a, 47b) is designed and configured to adjust a signal propagation time of the modulation signal (Mod) as a function of the detected time delay. Furthermore, a method for operating a corresponding lighting device (41) is specified.

The utility model discloses a photoelectric frame for a photoelectric sensor, which comprises a mounting seat, a rotating column, a U-shaped block, a movable block and a photoelectric sensor body, wherein the rotating column, the U-shaped block and the movable block are sequentially arranged at the top of the mounting seat, and the photoelectric sensor body is arranged at the top of the movable block. An enclosure protection assembly is arranged at the top of the movable block; the photoelectric sensor body is arranged at the top of the movable block, under the cooperation of the semicircular shells, the hinge blocks and the connecting strips, the semicircular shells can be turned over to the top of the movable block with the hinge points on the connecting strips and the hinge blocks as the circle center, and the photoelectric sensor body is enclosed in the semicircular shells. The top of the photoelectric sensor body is exposed out of the tops of the semicircular shells, the semicircular shells are connected through cooperation of the connecting pieces, the comprehensive protection effect is achieved for the photoelectric sensor body, the photoelectric sensor body is prevented from being exposed in a working area or an external environment, and therefore when the photoelectric sensor body is collided and the like, the photoelectric sensor body cannot be damaged. And the condition that the photoelectric sensor body is damaged is further avoided.

The invention discloses a dynamic liquid level detection system and method based on a capacitance-photoelectric dual-mode sensor, and the system comprises a dual-mode sensor module which comprises a capacitance sensor used for measuring the capacitance value change caused by the liquid level change; the photoelectric sensor is used for measuring the light intensity change caused by the liquid level change; the signal processing module is used for processing original signals of the capacitive sensor and the photoelectric sensor; the dynamic calibration module comprises a temperature sensor and a microcontroller MCU, and the microcontroller MCU is configured to receive and process the signal from the signal processing module; dynamically adjusting the excitation frequency of the capacitive sensor according to the temperature value read by the temperature sensor and a preset sample viscosity type; based on a self-adaptive weighted fusion algorithm, fusing the processed capacitance signal and the photoelectric signal, and outputting final liquid level information; and when bubbles are detected, the control system is switched to a pure capacitance detection mode. According to the invention, high-precision liquid level detection can be realized.

The application discloses a kind of physical defect detection devices and methods of spectacle optical lens. Including collimating light source, two-dimensional light point scanning system, power compensation optical system and integrating sphere arranged in sequence on light path, photovoltaic sensor on the reflecting surface of integrating sphere, data processing board connected with photovoltaic sensor, overflow port for light beam passing is opened on integrating sphere.The application solves the comprehensive detection technical problem of detecting the defects such as bubble, scratch and pitting of the lens with optical power, and establishes the industry standard accordingly.The application is simple in structure, low in cost and high in sensitivity, and the 100% detection rate makes the operator only need to recheck the lenses that are misdetected as defects due to removable dirt on the surface.Usually, these lenses that need to be rechecked are about 3%.Thus, the application greatly reduces the intensity of workers and improves the efficiency, and also avoids unnecessary waste.

The utility model relates to the technical field of weighing and packaging machines, and discloses a weighing and packaging machine with a positioning structure, which comprises a base, a weighing device is mounted at the top of the base, a display screen is arranged on the outer wall of the weighing device, a placing table is mounted at the top of the display screen, the outer wall of the placing table is connected with a connector, and the connector is connected with the positioning structure. The weighing packaging machine comprises a containing table, a conveying table is placed on the top of the containing table, a rotating motor is installed on the outer wall of the containing table, a conveying belt is arranged on the inner wall of the conveying table, and large-package objects are placed on the outer wall of the conveying belt. Therefore, when a display screen on the device displays weighing information, transient time delay setting is carried out, then a rod lifting motor controls a handrail to carry out rotary lifting work, and a rotary motor recovers the transmission effect again to convey large-package articles rightwards and leave the large-package articles.

A dynamic vision sensor (DVS) color camera (DVS-CCam) operable to acquire a color image of a scene, the DVS-CCam including a DVS photosensor comprising DVS pixels, an illuminator operable to transmit a light pattern characterized by temporal changes in intensity and color to illuminate a scene, an optical system configured to collect and focus on the pixels of the DVS photosensor light reflected by features in the scene from the light pattern transmitted by the illuminator, and a processor configured to process DVS signals generated by the DVS pixels responsive to temporal changes in the reflected light to provide a color image of the scene.

A positron emission tomography (PET) scanner includes multiple gamma radiation detector modules arranged to form a detector ring. Each detector module includes an array of elongated scintillation crystals. With respect to the detector ring, each elongated scintillation crystal includes a proximal end face, two axially-oriented side faces, two cross-axially-oriented side faces, and a distal end face oriented radially into the detector ring to receive gamma photons. An array of photosensors is disposed along a first of the axially-oriented side faces of each elongated scintillation crystal to detect scintillation photons. Reflective material is disposed on a second of the proximal end face, the distal end face, the cross-axially-oriented side face, and the axially-oriented side face of each elongated scintillation crystal to internally reflect scintillation photons. In various embodiments, a dual-channel processing circuit provides separate timing and energy signals from the photosensors.

The invention relates to the technical field of photoelectric sensors, and discloses a photoelectric sensor calibration device capable of transferring functions and static characteristics, which comprises a supporting base, a driving cover is fixedly mounted on the upper surface of the supporting base, and a servo motor is fixedly mounted on the inner bottom wall of the driving cover. A driving gear is fixedly mounted at the output end of the servo motor, a bearing ring is fixedly embedded in the upper surface of the driving cover, a transmission pipe is fixedly connected to the inner ring of the bearing ring, a transmission gear is fixedly mounted at the bottom end of the transmission pipe, and the left end of the transmission gear is meshed with the right end of the driving gear; a supporting table is fixedly connected to the top end of the transmission pipe, a plurality of supporting covers are fixedly installed on the bottom face of the supporting table, and a sliding groove is formed in the inner side wall of each supporting cover. According to the photoelectric sensor calibration device capable of transferring the function and the static characteristic, the photoelectric sensor above the supporting table can be continuously detected, and the detection calibration speed of the photoelectric sensor is increased.