129 results about "Electro-optical sensor" patented technology

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.

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 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 invention provides a temperature self-adaptive frequency locking system and method applied to a CPT atomic clock, the system comprises a TEC heating sheet 1, a VCSEL laser 2, a temperature sensor 3, a gas chamber shell 4, a gas chamber 5 and the like, the VCSEL laser 2 is tightly attached to the surface of the TEC heating sheet 1, the temperature sensor 4 is arranged near the outer side of the gas chamber 5, the gas chamber 5 is wrapped by the gas chamber shell 4, and the TEC heating sheet 1 is arranged in the gas chamber shell 4. A heating resistor network 7 is arranged at the lower part of the air chamber 5; a laser beam emitted by the VCSEL laser 2 passes through the gas chamber 5 and then is received by the photoelectric sensor 6. The whole control is executed by a CPT atomic clock control system 9; and feedback signals of the temperature sensor 4 are respectively transmitted to the frequency drift algorithm processing module 10 and the control parameter adjustment algorithm processing module 11. Output signals of the two modules are transmitted to a CPT atomic clock control system 9; a feedback signal of the photoelectric sensor 6 is also transmitted to the CPT atomic clock control system 9; the VCO voltage-controlled crystal oscillator 8 is controlled by the CPT atomic clock control system 9 and outputs frequency to the outside.

The utility model relates to the technical field of photoelectric sensor production, and discloses a debugging platform for designing a photoelectric sensor, which comprises a detection platform provided with an emitting through hole and a receiving through hole, the emitting through hole is used for allowing light emitted by a light emitter to pass through, and a light receiver receives light signals through the receiving through hole; the transmitting end lens adjusting module comprises a first cylindrical part used for installing a transmitting end lens and a vertical adjusting assembly used for driving the first cylindrical part to move along the center line of the emitting through hole; the receiving end lens adjusting module comprises a second barrel-shaped part used for installing a receiving end lens and a transverse adjusting assembly used for driving the second barrel-shaped part to transversely move, and the moving direction of the second barrel-shaped part is perpendicular to the direction of the center line of the receiving through hole; and the detection circuit board is mounted on the detection table and is electrically connected with the light emitter and the light receiver respectively. The debugging platform for designing the photoelectric sensor is beneficial to designing the photoelectric sensor with a more reasonable structure.

The invention relates to perovskite quantum dot glass powder and a preparation method thereof, the chemical formula of the glass powder is CsPb (Ax B1-x) 3, A and B are one or more of Cl, Br or I, x is more than or equal to 0 and less than or equal to 1, and the total molar amount of the components is 100 mol%. According to the perovskite quantum dot glass powder, the fluorescence wavelength can be adjusted through component change, the preparation method is simple and low in toxicity, and the perovskite quantum dot glass powder has high stability and does not need an annealing process. The method can be widely applied to the fields of display devices, lighting equipment, photovoltaic devices, photoelectric sensors and the like.

The invention relates to a ceramic bottle crack detection method based on machine learning open set recognition, which comprises the following steps: detecting the passing of a ceramic bottle on a conveyor belt through a photoelectric sensor, and when the passing is detected, controlling a knocking hammer to knock the bottle and collecting a sound signal through a microphone; intercepting, filtering and preprocessing the sound signal, and extracting a plurality of features; performing crack open set identification in two steps, adopting an improved MFCC to train a dichotomous support vector machine to detect whether a bottle has a crack or not, respectively training five single-class support vector machines by using all features to serve as a basic model of a first layer of a stacking model, and adopting a local outlier factor as a meta-model of a second layer of the stacking model to identify the crack open set of the bottle; the stacking model is used for detecting whether abnormal noise exists or not; and 4, according to an open set identification result, if abnormal noise exists during detection, re-detection is carried out, and otherwise, the ceramic bottles with cracks are removed according to a binary classification result. The open set recognition method is adopted to remove the influence of abnormal noise on the detection result, and the detection precision is high.

The invention discloses a photoelectric sensor system conversion efficiency calibration system and method based on a reverberation chamber, and belongs to the technical field of photoelectric sensor conversion efficiency calibration, the system comprises an electric wave reverberation chamber, a transmitting antenna, a reference antenna and a photoelectric field sensor system; the photoelectric field sensor system is composed of a photoelectric sensor, a laser source, a photoelectric detector, a polarization maintaining optical fiber and a single-mode optical fiber. In the calibration process, the reference antenna and the photoelectric sensor system are used as receiving ends respectively, receiving power at different stirring positions in the reverberation chamber is sampled to obtain two groups of transfer functions, and the total efficiency of the photoelectric sensor system is determined by comparing the two groups of transfer functions under the condition that the radiation efficiency of the reference antenna is known. The conversion efficiency of the photoelectric sensor system is obtained by combining the relation among the power, the field intensity and the total efficiency in the free space; and the effective averaging of the incident direction and the polarization state is realized by using the uniform and isotropic electromagnetic field characteristics of the reverberation chamber.

The invention belongs to the technical field of couplers, and discloses a high-voltage photoelectric coupler for deep sea detection and a manufacturing method thereof, and the high-voltage photoelectric coupler comprises a photoelectric sensor, a high-voltage packaging housing, an optical fiber, a gain control circuit, and a transition joint. The photoelectric sensor is used for receiving an optical signal in a deep sea environment and converting the optical signal into an electric signal; the high-pressure packaging shell protects the photoelectric sensor from being influenced by deep sea high pressure; the optical fiber is used for transmitting an optical signal to the photoelectric sensor from the deep sea and transmitting an electric signal out; the gain control circuit is used for amplifying the electric signal output by the photoelectric sensor; and the transition joint is used for connecting the high-voltage packaging shell and a medium of external equipment. The optimized and stable high-voltage packaging technology ensures the reliability of the coupler in a deep-sea high-voltage environment, so that the coupler can stably work under extreme conditions, and the packaging problem of a traditional coupler is solved.

The invention relates to an optical system and a control method. An optical system of the present disclosure includes a laser configured to emit a laser beam, an optical gain cavity including a plurality of reflectors and configured to receive the laser beam and amplify a power of the laser beam, an adjustable light intensity attenuator, a photosensor, and a feedback controller, the adjustable light intensity attenuator is configured to adjust the intensity of a reflected light beam reflected by the optical gain cavity to be within a preset intensity range, and the photoelectric sensor is configured to receive the reflected light beam adjusted by the adjustable light intensity attenuator and generate an electric signal. The feedback controller is configured to adjust a frequency of the laser beam emitted by the laser based on the electrical signal. According to the optical system disclosed by the invention, the saturation phenomenon of the photoelectric sensor can be avoided through the adjustable light intensity attenuator, so that the photoelectric sensor obtains an accurate electric signal.

The invention relates to a three-mirror anastigmat telescope, comprising at least a primary mirror (1), a secondary mirror (2) positioned in front of the primary mirror (1) such that the primary and secondary mirrors have optical surfaces (1.1, 2.1) opposite one another, a tertiary mirror (3) having an optical surface (3.1) opposite the optical surface (2.1) of the secondary mirror (2), and a first optronic sensor (10) positioned opposite the tertiary mirror (3). The telescope comprises a second optronic sensor (20) positioned behind the secondary mirror (2) and the optical surface of the secondary mirror (2.1) has a dichroic treatment (2') intended to separate an incident luminous flux reflected by the primary mirror (1) into a first luminous flux reflected towards the first optronic sensor (10) via the tertiary mirror (3) and a second luminous flux transmitted to the second optronic sensor (20), the first luminous flux and the second luminous flux being in different spectral bands and the secondary mirror (2) being transparent to the spectral band of the second luminous flux.

The invention belongs to the technical field of industrial automation and intelligent manufacturing, and particularly relates to a furniture plate quality detecting and sorting system based on machine vision, which comprises a plate conveying mechanism provided with a feeding channel and three discharging channels; the scanning mechanism integrates an encoder and a photoelectric sensor, and synchronously triggers double cameras to collect double-sided images of the plate; the visual identification module adopts an optimized YOLOv8 model, a C2f module is replaced by a DCN-C2f module, bounding box regression loss adopts WIoUv3, and accurate classification of qualified plates, processing defect plates and self-defect plates is realized; the sorting mechanism automatically sorts the plates to corresponding channels according to recognition results through three linkage conveying belt units in combination with synchronous control of servo motor driving and air cylinder lifting. According to the invention, the problems of low detection precision and disjunction of identification and sorting actions are solved, and millimeter-level defect positioning and high-speed sorting are realized.

The present invention relates to a vertically-charge-transferring pixel sensor (VPS) and methods of manufacture and operation thereof. In the VPS, deep trench isolation (DTI) structures and shallow trench isolation (STI) structures in a substrate contain deep trench electrodes and shallow trench electrodes, respectively. In a light sensing operation, a positive bias voltage can be applied between the substrate and the deep and shallow trench electrodes to raise a potential barrier at boundaries of the DTI and STI structures and the substrate. This reduces the likelihood of photoelectrons being captured at the boundaries, thus reducing loss of photoelectrons and contributing to enhanced quantum efficiency. In addition, in the STI structures, the shallow trench electrodes may be offset toward light sensing regions beside the STI structures. In this way, a voltage applied to the shallow trench electrodes has a greater impact on potentials in the light sensing regions than on potentials in charge readout regions, thus additionally reducing loss of photoelectrons and minimizing the influence on MOS transistors in the charge readout regions.

This detection device comprises: a light source capable of emitting light toward a detection target; a first optical sensor provided adjacent to a first side surface side of the light source; and a light-transmissive resin portion covering the light source and the first optical sensor. The resin portion has a first groove portion formed between the light source and the first optical sensor, the first groove portion blocking light traveling from the light source toward the first optical sensor.

The invention discloses an ionic elastomer photoelectric sensor based on triplet-triplet annihilation up-conversion and a preparation method of the ionic elastomer photoelectric sensor, and belongs to the technical field of functional materials and photoelectric sensing. The photosensitizer and the luminescence agent form a triplet state-triplet state annihilation up-conversion system. The preparation method comprises the following steps: respectively forming the ionic conductive phase and the optical active phase, mixing the ionic conductive phase and the optical active phase to form a homogeneous system, and curing and molding through photo-initiation polymerization. Under the optical excitation condition of a specific wave band, the ion elastomer can generate measurable electric signal output, so that conversion from an optical signal to an electric signal is realized. The flexible photoelectric sensor can be prepared by curing the material on the surface of an electrode, can work under the condition of no external bias voltage or low bias voltage, has the characteristics of good wavelength selectivity, excellent flexibility and stretchability and the like, and has an application prospect in the fields of wearable sensing and flexible electronics.

This utility model relates to a cross-axis palletizing device, including a feeding hopper, a conveyor belt, a palletizer, and a controller. The feeding hopper is located above the feeding end of the conveyor belt, and a small item palletizing basket is arranged below the discharging end of the conveyor belt. A telescopic rod is provided on one side of the small item palletizing basket to push it into the palletizer. Push rods and large item palletizing baskets are respectively located on the left and right sides of the conveyor belt. The large item palletizing basket is connected to a three-axis drive assembly via a rotary drive component. A moving component for moving the large item palletizing basket is also provided on one side of the three-axis drive assembly. A first photoelectric sensor and a telescopic limit rod are arranged sequentially above the conveyor belt between the feeding hopper and the large item palletizing basket, along the conveying direction of the conveyor belt. The controller is communicatively connected to the first photoelectric sensor, the telescopic limit rod, the push rod, and the three-axis drive assembly. This utility model can replace the manual process of stacking cross-axis pallets into boxes, saving manpower.

To provide a two-dimension photosensor which can be manufactured at a low cost in a thin film transistor plant and covers a relatively wide two-dimension plane.SOLUTION: The two-dimensional photosensor 100 includes a plurality of photodiodes arranged, each photodiode including a stack of a first metal electrode 11, a first semiconductor layer 12, a first ohmic contact layer 13, and a first transparent electrode 16, the first semiconductor layer 12 and the first ohmic contact layer 13 being disposed between the first metal electrode 11 and the first transparent electrode 16, A Schottky barrier is provided on an interface between the first semiconductor layer 12 and the first metal electrode 11 or an interface between the first semiconductor layer 12 and the first transparent electrode 16, and light incident from the side of the first transparent electrode 16 toward the first semiconductor layer 12 is sensed.SELECTED DRAWING: Figure 6

An electro-optical (EOM) included within an enclosure is provided. The EOM comprises at least two camera modules, and configured to determine depth of a target by using a block matching algorithm operative to match pixels derived from an image captured by one of the camera modules with pixels derived from an image captured by another of the two camera modules. The EOM is characterized in that it comprises: a first isolating material located between the EOM and its enclosure, and configured to prevent structural forces from being developed due to deformation of the EOM enclosure; a main processor baseboard PCB to which each of the camera modules is connected; and one or more flat cables connecting the EOM enclosure with the main processor baseboard PCB, wherein the one or more flat cables are placed in an “s” shape within the EOM enclosure.

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.

The application provides a U-shaped arm and an endoscope seat for an ERCP surgical robot, which comprises a U-shaped arm and an endoscope seat, the endoscope seat is arranged on one side of the U-shaped arm, the endoscope seat is used for mounting an endoscope, a connecting rod and a wire passing hole are arranged on any side wall of the U-shaped arm, and the connecting rod is used for connecting a cantilever; a control handle is arranged on the side of the U-shaped arm away from the connecting rod, the control handle is used for controlling locking or unlocking of the cantilever, and an optoelectronic sensor for sending or detecting signals is arranged on the control handle. An operation table formed by the U-shaped arm and the endoscope seat is used for integrally mounting the endoscope on the operation table and integrating a guide groove, a water vapor suction control module, a forceps lifter driving module, a knob driving module and the forceps lifter, when surgery is performed, the operation table formed by the U-shaped arm and the endoscope seat can be remotely operated, which is helpful to reduce the harm caused by long-term radiation of surgery to operators and avoid hand tremor of a doctor during operation.

The present application relates to an optoelectronic sensor and a method for detecting an object. An optoelectronic sensor (10) for detecting an object in a monitored region (20) is proposed, having a light emitter (12) for emitting an emitted light (16), a light receiver (26) for generating a reception signal from a received light (22) from the monitored region (20), a movable deflection unit (18) for periodically deflecting the emitted light (16) and the received light (22), a control and evaluation unit (32) for detecting information about an object in the monitored region (20) on the basis of the reception signal, and an optical turning element (18, 40) in the beam path of the received light (22). Here, the turning element (18, 40) has a temperature-dependent beam shaping property.

To provide both good time-of-flight resolution and interaction depth information. [Solution] The positron emission tomography apparatus according to the embodiment comprises a scintillation array and a photosensor array. The scintillation array includes a plurality of scintillator crystal units individually separated by a reflective material, and each scintillator crystal unit is configured to generate scintillation light in response to gamma-ray interactions within the scintillator crystal unit caused by gamma-ray irradiation from a subject, and has a substructure for decoding two or more depths within the scintillator crystal unit such that gamma-ray interactions at different depths cause scintillation light to escape from the photo-escape plane of the scintillator crystal unit in different patterns. The photosensor array converts the scintillation light received from the scintillation array into an electrical signal.

In one embodiment, the invention provides a memory cell having a first and second optical modulator. Each optical modulator has a light input and at least one light output and receives an electrical input determining a switching state of the optical modulator defining a switching of light between the light input and light output. A first photodiode is connected to conduct current to a first node when illuminated, and a second photosensor is connected to conduct current away from the first node when illuminated. Similarly, a third photosensor is connected to conduct current to a second node when illuminated, and a fourth photosensor is connected to conduct current away from the second node when illuminated. The first and second optical modulators control light directed to at least one of a respective photosensor and have their electrical inputs connected to one of the first and second nodes to provide bistable switching states.

This invention belongs to the technical field of photovoltaic glass production equipment. Specifically, it relates to a defective glass detection and waste removal device for a production line and its usage method. The device includes a conveying mechanism with a breakage detection module mounted above it, and an automatic waste removal mechanism. Online automatic defect detection is achieved through photoelectric sensors and a PLC controller, ensuring accurate identification and rapid response. When defective glass is detected, the device automatically controls the column to open, allowing the glass to fall through a guide plate into a waste collection frame for waste removal. The entire process is automated, effectively removing defective products and improving product qualification rates, making it suitable for continuous and efficient production line operation. This invention also provides a method for using the defective glass detection and waste removal device for this production line, facilitating understanding and use by operators.

A refrigerant quality sensor includes an elongated sensor housing comprising a first end wall and a second end wall and at least one side wall extending between the first end wall and the second end wall. A refrigerant inlet and a refrigerant outlet are disposed in the at least one side wall. A light source is disposed at the first end wall. A photosensor is disposed at the second end wall. The photosensor generates an electrical signal corresponding to a quality of refrigerant within the elongated sensor housing.

It provides a new directional pad structure. [Solution] The controller is provided with a housing and a cross key having a key top that receives an input operation and at least a part of which is exposed through an opening provided in the housing, and a cross-shaped plate member provided so as to be covered by the key top. Inside the housing, there is an optical sensor that detects the movement of the cross-shaped plate member in response to an input operation, a cushion part that suppresses the movement of the cross-shaped plate member in response to the input operation, and a stopper part that stops the movement of the cross-shaped plate member in response to the input operation. Furthermore, inside the housing, the cushion part and the stopper part are arranged in the order of cushion part and stopper part, from the center of the cross-shaped plate member toward the optical sensor.

To provide a display incorporating a two-dimension photosensor based on the structure of a thin film transistor for a display.SOLUTION: The display 100 with a built-in two-dimension photosensor includes a photosensing unit 102 disposed in a two-dimension and a display unit 101, the photosensing unit 102 includes a photodiode 200 and a photosensor driving unit 300, the display unit 101 includes a display device 420 and a display device driving unit 400, the photodiode 200 forms a Schottky diode type photodiode 200 between a photosensor bottom terminal 202 and a photosensor first transparent terminal 208, the photosensor driving unit 300 includes a photosensor driving unit gate terminal 302a, and the display device driving unit 400 includes a display device driving unit first gate terminal 402a. The photosensor bottom electrodes 202, the photosensor-driver-portion gate electrodes 302a, and the display-element-driver-portion first gate electrodes 402a are formed of the same layer.SELECTED DRAWING: Figure 5

The invention relates to an optoelectronic sensor, in particular a time-of-flight camera or a LiDAR sensor, for detecting at least one object in a monitored zone, wherein the optoelectronic sensor comprises a light transmitter, a light receiver and an evaluation unit. The light transmitter is configured to transmit transmission light into the monitored zone. The light receiver is configured to receive reception light remitted by the monitored zone. The evaluation unit is configured to obtain distance data about the monitored zone based on the reception light, wherein the distance data comprise intensity values and associated distance values; for all those data portions in the distance data that do not originate from the object, and in particular for all those data portions whose intensity value is smaller than a first intensity limit value, in each case based on the distance data, to determine a distance from the object, in particular from the margin of the object, and, in each case based on the determined distance of the respective data portion from the object, based on a model for the scattered light behavior of the optoelectronic sensor and based on the intensity value of the respective data portion, to determine a probability value that the respective data portion represents an interference; and to recognize all those data portions as interference whose determined probability value is equal to or greater than a probability limit value.