142 results about "Phototube" patented technology

The invention relates to an inter-beam time synchronization measurement device and method after high-power laser beam splitting. The device comprises a triple frequency simulation light source, a first photoelectric tube, a second photoelectric tube, a high-speed oscilloscope and a data processing module. The frequency tripling simulation light source provides frequency tripling light signals of all light paths to be measured, the first photoelectric tube receives the light signals to be measured and outputs electric signals to be measured, and the second photoelectric tube receives time reference light signals and outputs time reference electric signals. The high-speed oscilloscope receives the electric signal to be measured and the time reference electric signal and outputs waveform sequence data to the data processing module, and the module calculates the time interval delta t between the waveform sequence data. According to the method, triple frequency simulation light is divided into a plurality of laser beams through a beam splitting module, and each laser beam reaches a target spot through an independent terminal transmission module. A first photoelectric tube is arranged at a target spot to measure the arrival time of each laser beam, and a second photoelectric tube is arranged in a terminal transmission module of a certain split laser beam to serve as a time reference. A light beam to be measured is selected through the shading assembly, and the time interval between each laser pulse and the time reference pulse is calculated by using a cross-correlation analysis method. According to the invention, high-precision measurement of time synchronization between high-power laser beam splitting is realized, and main laser emission or additional devices are not needed.

The embodiment of the invention provides a rubidium atomic clock based on a velocity grating spectrum and an implementation method, and the method comprises the steps: enabling a multi-frequency coherent laser source to emit a laser signal containing the velocity grating spectrum, and dividing the laser signal into two paths through a polarization splitting prism; the reflected light beam enters the laser frequency stabilization module to realize laser frequency stabilization; a transmission light beam enters the rubidium bubble through the lens group to interact with rubidium atoms; the photoelectric tube detects a transition spectral line, converts the transition spectral line from an optical signal into an electric signal and transmits the electric signal to the lock-in amplifier for demodulation; the integral amplification module converts the demodulated direct-current voltage into linear increasing voltage and transmits the linear increasing voltage to the crystal oscillator; the crystal oscillator generates an initial microwave signal and generates a microwave signal corresponding to the 87Rb atom through the frequency synthesizer; and the phase frequency modulation module modulates the microwave signal to obtain an error signal and transmits the error signal to the microwave resonant cavity so as to adjust the electromagnetic field according to the error signal to stably lock the rubidium atomic clock. The method is used for achieving the effect of improving the stability of the rubidium atomic clock system.

The utility model discloses a constant flow control and material level detection device for tobacco shred conveying. The constant flow control and material level detection device comprises a protective frame, a signal line, a photoelectric tube, an air tube, a positioning strip, a lifting belt conveyor, a hopper, a metering tube and an electronic belt scale. An electronic belt scale is arranged right below the metering tube, a hopper and a lifting belt conveyor are arranged right above the metering tube, a plurality of groups of photoelectric tubes are symmetrically arranged on the left side and the right side of the metering tube respectively and are used for detecting the tobacco shred material level in the metering tube respectively, and signals are sent out through a signal line to control the tobacco shred input time of the lifting belt conveyor to the hopper and the output of the lifting belt conveyor to the electronic belt scale. The high-pressure gas in the gas pipe is sprayed to the photoelectric tube in the protective frame in real time, so that the photoelectric tube is in a clean working environment for a long time, the problems of photoelectric signal distortion and the like are solved, a production line runs stably, the production efficiency is improved, and the maintenance cost is reduced. According to the utility model, the cut tobacco material can be conveyed to the downstream process at a relatively constant flow, the flow fluctuation is reduced to meet the cut tobacco making process requirement, and the cut tobacco making quality is improved.

The invention relates to the technical field of photoelectric tube detection, in particular to a photoelectric tube high-voltage excitation type solar blind ultraviolet discharge detection method and system, and the method comprises the steps: obtaining original voltage sequence data collected by a high-speed transimpedance sampling circuit in real time; positioning feature points of each suspected pulse according to the original voltage sequence data, and extracting pulse waveform features; obtaining a physical confidence factor of each suspected pulse according to the falling edge attenuation characteristics; calculating effective discharge energy flow in unit time based on the physical confidence factor; calculating a discharge stability coefficient according to a coupling relationship between the time correlation entropy and the effective discharge energy flow; according to the method, a scheme from microscopic physical judgment, waveform form deconstruction and time law analysis to multi-dimensional trend prediction is constructed, so that the contradiction between the detection sensitivity and the quantification precision is solved; and adaptive tracking monitoring of the partial discharge process is realized.

The invention provides a collimation device and method for an optical resonant cavity, which can be applied to the technical field of laser. According to the device, a polarization unit adjusts the polarization direction of laser to obtain circularly polarized light; the four-quadrant photoelectric detector collects reflected light obtained after the circularly polarized light is reflected by the first reflector, the second reflector, the optical resonant cavity and the polarization unit for multiple times, and the incident coordinate of the reflected light incident to the four-quadrant photoelectric detector is obtained; the photoelectric tube performs photoelectric conversion on output light after the circularly polarized light sequentially passes through the first reflecting mirror, the second reflecting mirror and the optical resonant cavity to obtain a voltage value; the controller generates a first control signal according to the incident coordinate and a preset coordinate; and according to a plurality of voltage values corresponding to the laser at different frequencies, a second control signal is generated, so that the first reflector rotates under the control of the second control signal, and the incident light incident to the optical resonant cavity is adjusted to coincide with the central axis of the optical resonant cavity.

The present invention provides a collimation device and method for an optical resonator, which can be applied to the field of laser technology. The device includes: a polarization unit for adjusting the polarization direction of the laser to obtain circularly polarized light; a quadrant photodetector for collecting the reflected light obtained after the circularly polarized light is reflected multiple times by a first mirror, a second mirror, an optical resonator and the polarization unit, and obtaining the incident coordinates of the reflected light incident on the quadrant photodetector; a phototube for performing photoelectric conversion on the output light of the circularly polarized light passing through the first mirror, the second mirror and the optical resonator in sequence to obtain a voltage value; a controller for generating a first control signal according to the incident coordinates and a preset coordinate; and generating a second control signal according to a plurality of voltage values corresponding to lasers at different frequencies, so that the first mirror rotates under the control of the second control signal to adjust the incident light incident on the optical resonator to coincide with the central axis of the optical resonator.

This invention provides a phototube cooling mechanism and photoelectric system for tracking slabs in a heating furnace. The phototube cooling mechanism includes a sleeve, a guide tube, a glass plate, a pressure cap, and a cold flow tube. The sleeve has a first end and a second end opposite each other along its own axial direction. The guide tube is fitted inside the sleeve and is flush with the first end. A spiral channel exists between the outer wall of the guide tube and the inner wall of the sleeve. The spiral channel extends through the second end. The glass plate is located at the first end of the sleeve and the end of the guide tube, and is in contact with the space of the spiral channel. The pressure cap is connected to the first end of the sleeve and presses the glass plate tightly against the sleeve and the guide tube. The cold flow tube is disposed on the outer wall of the sleeve near the first end and communicates with the spiral channel. The spiral flow of the cold flow increases the heat exchange time, thereby removing more heat. Therefore, the temperature of the cold flow can be set relatively high, thereby reducing the heat removed from the furnace by the cold flow, thus improving the utilization rate of the furnace and reducing fuel consumption.

Proposed is an X-ray detector including a substrate with a defined display area and a non-display area around the display area, a first electrode provided in the display area on the substrate, a photoconductor layer located on the first electrode and provided in the display area and the non-display area, a second electrode provided on the photoconductor layer, and at least one contact pattern provided in the non-display area and configured to surround the display area, wherein the photoconductor layer is in contact with the at least one contact pattern located therebelow.

This invention relates to the field of steel production quality inspection technology, specifically to a phototube protection device, comprising a protective cover body, a mounting structure, and a light-receiving hole; wherein, the top of the protective cover body is provided with a closed structure; the mounting structure is disposed on the protective cover body for fixing the protective cover body to the bracket of the phototube; the light-receiving hole is opened on the front of the protective cover body, and the opening size of the light-receiving hole is smaller than the detection range of the phototube body to limit the light-receiving range of the phototube, thereby reducing the influence of external light, welding sparks, and other interference factors on the detection signal; the light signal received by the phototube of this invention is constrained to the target area directly in front of the light-receiving hole; thus, the probability of false triggering of the detection signal is reduced, and the detection accuracy of the phototube is improved.

The invention provides a control method for maintaining the cut tobacco conveying flow to be stable and reducing the starting and stopping frequency of equipment. According to the invention, two metering tube control photoelectric tubes are added and are used for controlling the increase and decrease of the operation frequency of front-end equipment, so that the self-adaptive control and matching of the incoming quantity and the demand quantity of materials are realized. According to the invention, a conveying belt motor is changed into a variable frequency motor, and material information fed back by a photoelectric tube is associated with the belt frequency, so that a control method of automatically increasing the frequency when the material is less, automatically reducing the frequency when the material is more and automatically stopping when the material is full is realized, and the material in a metering tube is always maintained at a reasonable level.

The utility model relates to the technical field of blood CRP fluorescence detection devices, in particular to a blood CRP fluorescence detection device based on an STM32 processor, which comprises a detection strip, a code scanning module, a photoelectric detection module, a transmission module and a core chip, the photoelectric detection module comprises a laser and a photoelectric tube, the transmission module is placed on a table top, and a detection strip is placed above the transmission module in parallel; the irradiation direction of the laser is parallel to and opposite to the movement direction of the transmission module, and the photoelectric tube is perpendicular to the transmission module; a dichroic mirror is obliquely arranged at an included angle between the photoelectric tube and the laser; the code scanning module is arranged above the transmission module; the core chip is electrically connected with the code scanning module, the photoelectric detection module and the transmission module. The fluorescent substance replaces a radioactive substance to serve as a tracing mark, the defects that a radioimmunoassay method is poor in stability and large in marker harm are overcome by measuring the light intensity of fluorescent light excited by the fluorescent mark, and the whole device is stable in performance, low in cost, small in power consumption and convenient to popularize.

The utility model relates to photoelectric device test technical field especially a kind of miniature photoelectric tube ageing seat, including base, upper cover, integrated light source module, multiple elastic probes and locking assembly;The base is opened with heat dissipation groove, test groove and mounting groove, the heat dissipation groove and mounting groove confluence intercommunication, test groove is located at the confluence of heat dissipation groove and mounting groove;The elastic probe is distributed in mounting groove, and its upper end extends to test groove, and lower end is exposed below base;The upper cover left end is hinged with base;Upper cover is vertically opened with through-hole, and integrated light source module is located on upper cover and is positionally corresponding with test groove by through-hole;The locking assembly is located between upper cover and base to lock the closure state of upper cover and base, can satisfy the online light quantity control and test of miniature photoelectric tube by the utility model, improve test precision and reliability.

The invention relates to the field of photoelectric management, in particular to an intelligent photoelectric management system and method based on big data, and the system comprises a target detection module, an image processing module, a mechanical tracking module, a disturbance compensation module and a visual processing module. The image processing module is used for suppressing a sub-peak value and carrying out boundary truncation, the mechanical tracking module is used for continuously tracking a target, the disturbance compensation module is used for compensating disturbance of a target point, and the visual processing module is used for outputting a non-delay motion equation. The performance of the photoelectric tracking system in executing a tracking task is improved, the mechanical disturbance effect is effectively inhibited, high-precision tracking control over a target object is achieved, the self-adaptive capacity of the photoelectric tracking system is improved, and the stability of target tracking and the accuracy of motion data analysis are ensured.

The utility model belongs to the technical field of cigarette packet production, and particularly relates to a device for detecting a small box aluminum-foil paper pulling piece. According to the small box aluminum foil paper pull tab detection device, the outer detection assembly is arranged on the outer side guide plate and can be used for detecting the existence of pull tabs on the outer end face (namely the end face where the pull tabs are located) of a cigarette packet and detecting the defects of the pull tabs, and the inner detection assembly is arranged on the inner side guide plate and can be used for detecting the defects of packaging paper on the outer end face of the cigarette packet. And the comprehensiveness of cigarette packet detection is improved. The high-precision photoelectric tubes are arranged in an angular manner to optimize the layout, so that the installation size is reduced, the detection coverage area is increased, missing detection and false detection are reduced, and the product quality is ensured. According to the installation and adjustment structure of the integrated optical fiber, the change of an original machine is reduced, a detection result can be judged more quickly by using a photoelectric detection waveform, the detection and judgment time is shortened, and the adaptability is wider.

The invention relates to the technical field of space environment detection, in particular to a photoelectric sensor for gamma-ray spectrum measurement, which comprises a gamma-ray photon absorption transmission structure, a photoelectric conversion structure and an electric signal output structure, and is characterized in that the gamma-ray photon absorption transmission structure comprises a crystal sealing glass window, a crystal structure assembly and a crystal gland; the photoelectric conversion structure comprises a photoelectric tube first fixing ring, a photoelectric tube assembly, a photoelectric tube second fixing ring and a photoelectric tube gland; the electric signal output structure comprises an electric signal front-end processing board, a supporting column, a mounting base and a signal output lead. The overall structure of the sensor adopts upper, middle and lower three-position connection, so that the assembly precision and reliability of the whole machine are improved; seamless connection between the crystal and the photomultiplier tube is realized through a photoelectric coupling glue potting mode, and multiplication of gamma photon signals and photoelectric conversion efficiency are improved.

The utility model discloses a photoelectric effect exploration instrument which comprises a circuit board and a light source, and one side of the circuit board is provided with a physical diagram formed by sequentially connecting a control switch, a potentiometer, a voltage sensor, a micro-current sensor and a photoelectric tube through wires; the other side of the circuit board is provided with a circuit which corresponds to the position of the physical diagram and is connected with the physical diagram in the same way; the control switch and one end of the photoelectric tube are exposed on the circuit; the light source is mounted on the circuit board close to the photoelectric tube and exposed on one side of the circuit; wherein the light beam emitted by the light source can irradiate on the cathode plate of the phototube frontally, the demonstration instrument effectively combines the modern technology and the physical experiment by utilizing a Lanwei digital instrument, not only is the measurement accurate, but also the current and voltage images can be directly presented on computer software, so that students can understand the concept of saturated photocurrent; the problem that a pointer type electric meter cannot demonstrate the instantaneity of the photoelectric effect is solved.

Direct-bonded optoelectronic interconnects for high-density integrated photonics are provided. A combined electrical and optical interconnect enables direct-bonding of fully-processed optoelectronic dies or wafers to wafers with optoelectronic driver circuitry. The photonic devices may be III-V semiconductor devices. Direct-bonding to silicon or silicon-on-insulator (SOI) wafers enables the integration of photonics with high-density CMOS and other microelectronics packages. Each bonding surface has an optical window to be coupled by direct-bonding. Coplanar electrical contacts lie to the outside, or may circumscribe the respective optical windows and are also direct-bonded across the interface using metal-to-metal direct-bonding, without interfering with the optical windows. Direct hybrid bonding can accomplish both optical and electrical bonding in one overall operation, to mass-produce mLED video displays. The adhesive-free dielectric-to-dielectric direct bonding and solder-free metal-to-metal direct bonding creates high-density electrical interconnects on the same bonding interface as the bonded optical interconnect. Known-good-dies may be used, which is not possible conventionally, and photolithography over their top surfaces can scale to high density.

The application discloses a kind of atmospheric particulate matter sampling left and right paper moving device and control method thereof, including sliding plate assembly, sampling body assembly, screw rod assembly, left limit block and right limit block, sliding plate assembly is composed of driving wheel, driven wheel and paper tape shaft, sampling body assembly is composed of sampling pressure head, photoelectric tube, beta source and motor, screw rod assembly is composed of screw rod, screw rod motor, push block and spring guide rail.This application uses straight tube sampling in left and right paper moving for particulate matter sampling, which can effectively reduce the influence of dust accumulation in the tube, and move the detection unit out of the gas path, heating the sample gas to remove moisture, which has no effect on the photoelectricity, and can greatly improve the accuracy of detection. The precise positioning during the paper moving process ensures that the sampling spot is accurately delivered to the detection unit position. In the paper moving process, the spring is compressed to eliminate over-positioning, ensuring that the sliding plate assembly contacts the left and right limit plates for precise positioning.

A high-power laser beam time delay measuring device is characterized in that a signal sent by a clock reference is accessed to a first channel of a high-speed oscilloscope in an electric signal mode during relative time delay measurement of a fundamental frequency band, and a pulse output by a repetition frequency main laser system is received by a first photoelectric tube, converted into an electric pulse and accessed to a second channel of the high-speed oscilloscope; during triple frequency band relative time delay measurement, triple frequency simulation light is received by the second phototube after penetrating through the terminal optical element and is converted into an electric pulse, and the electric pulse is accessed to a third channel of the high-speed oscilloscope. According to the invention, time delay measurement is carried out through segmentation and wavelength division, and finally total delay accumulation is carried out to determine the time delay of each path of light beam reaching a target point relative to a reference. The high-precision measurement of the inter-beam delay can be realized without adding equipment by utilizing the existing equipment such as a repetition frequency main laser system and a frequency tripling simulation light source, the principle and the structure are simple, the cost is low, and the engineering realization is easy.

The application discloses a high-power laser beam inter-delay measurement device, when the relative time delay is measured in a base frequency band, a signal emitted by a clock reference is connected to a first channel of a high-speed oscilloscope in an electrical signal mode, and a pulse output by a main laser system with a high repetition frequency is received by a first photoelectric tube and converted into an electrical pulse and connected to a second channel of the high-speed oscilloscope; when the relative time delay is measured in a three times frequency band, three times frequency analog light is received by a second photoelectric tube after passing through terminal optical elements and converted into an electrical pulse and connected to a third channel of the high-speed oscilloscope. The application measures the time delay by segmenting and dividing wavelengths, and finally accumulates the total delay to determine the time delay of each light beam relative to the reference at a target point. The high-precision measurement of the inter-beam delay can be realized without adding new equipment by using the existing main laser system with a high repetition frequency, three times frequency analog light source and other equipment, the principle and structure are simple, the cost is low, and the engineering implementation is easy.

The invention discloses a method for controlling the motor frequency of a feeding quantitative belt matched with an electronic scale. According to the technical scheme, the method comprises the steps that S1, the instantaneous flow of an electronic scale is determined; s2, when the instantaneous flow of the electronic scale in the step S1 is smaller than a set value, the instantaneous flow state of the electronic scale is obtained; s3, recording the duration of the instantaneous flow state of the electronic scale in the step S2; s4, the triggering state of the low-material-level photoelectric tube is determined; s5, recording the time length of the triggering state of the low-material-level photoelectric tube in the step S3; s6, the triggering state of a middle material level photoelectric tube is determined, wherein the triggering state of the middle material level photoelectric tube is triggering; s7, recording the time length of the triggering state of the middle material level photoelectric tube in the step S5; s8, the instantaneous flow state of the materials is determined; and S9, adjusting the motor frequency of the quantitative belt. The method is mainly used for achieving automatic adjustment and control over the frequency of the quantitative belt, finally improving the precision of process control and achieving automatic control over the frequency of the feeding belt motor.

The utility model relates to an internal arteriovenous fistula monitoring bracelet for a hemodialysis patient. The internal arteriovenous fistula monitoring bracelet comprises a bracelet main body and a bracelet wrist strap, the bracelet main body is composed of a shell, a touch display screen, a power supply, a charging interface, a first photoelectric tube, a second photoelectric tube, a main control circuit board, a temperature monitoring chip and a heat insulation pad; a heat insulation pad is laid on one side, close to the inner side, of the bottom of the shell; a temperature monitoring chip is mounted between the shell and the heat insulation pad; a sensing module is arranged on the first wrist strap; the sensing module is provided with a first laser, a second laser, a third photoelectric tube, a fourth photoelectric tube, a sound sensor, a vibrating diaphragm and a sponge. Scattering light intensity signals generated after laser passes through thrombus are detected in real time through the photoelectric tube, and the internal fistula tremor feeling is monitored in real time through the sound sensor; by adopting a photoacoustic combined detection mode, the reliability of detection is improved, the false alarm rate of internal fistula blockage is reduced, and the device has the advantages of simplicity in operation, portability and accurate diagnosis.

The utility model discloses an operation unit for a KDF type silk bag splicing head detecting and removing device, relates to the technical field of packaging machines, and solves the technical problem that in the prior art, the operation process cannot be recognized. The operation unit comprises an operation button, a photoelectric tube, a relay and a controller; the operation button is respectively connected with the photoelectric tube and the relay, and the relay is connected with the controller. According to the operation unit for the KDF type silk bag splicing head detecting and removing device, the situation that a machine is recognized in the process of automatically removing silk bundle bags in a splicing mode can be achieved, and the operation unit can be seen obviously after being started; the system can intelligently adapt to all KDF models of a factory, and has the characteristics of high flexibility and wide applicability.

The present invention provides an electric field sensor and a speed regulation method. The electric field sensing component includes a sensitive structure, a driving part, a small blade and a photoelectric tube component. The sensitive structure includes a shielding electrode and a sensing electrode. The first end and the second end of the driving part are respectively connected to the shielding electrode and the small blade, driving the shielding electrode and the small blade to rotate synchronously, and the photoelectric tube component obtains the speed signal of the small blade; the control component includes a data processing unit, a PID control unit and a speed acquisition unit. The PID control unit obtains a set speed value according to the received external air pressure value and inputs it into the driving part; the speed acquisition unit is connected to the photoelectric tube component to obtain the speed value of the small blade; the data processing unit judges and regulates the speed value of the small blade and the set speed value to ensure that the two are consistent. The present invention can ensure that the electric field sensor can operate stably under different air pressure environments, while reducing the drift of the sensor sensitivity caused by temperature.

The invention discloses an anti-saturation optical detection circuit, and relates to the technical field of electronic circuits. The circuit comprises a photoelectric conversion unit, a voltage comparison unit, an adjustable reference voltage unit and an output unit. By setting the adjustable threshold voltage, the circuit can effectively distinguish the effective shading signal from the ambient background light, the saturation phenomenon under the strong ambient light is avoided, and a higher reference voltage is set through the adjustable potentiometer. Only when a shielding object enables the phototube to output a strong signal exceeding the threshold value, the comparator turns over, so that tiny voltage fluctuation caused by electromagnetic interference is ignored. According to the utility model, stable and clean digital switching signals are output, and the reliability and the anti-interference capability of optical detection are obviously improved.

The utility model relates to a photoelectric signal circuit for detecting air particulate matters, which comprises a photoelectric tube D4 and an operational amplifier U3A, the positive electrode of the photoelectric tube D4 is connected to the in-phase input end of the operational amplifier U3A, the negative electrode of the photoelectric tube D4 is connected to the inverting input end of the operational amplifier U3A, a capacitor C28 and a resistor R26 which are connected in parallel are bridged between the inverting input end and the output end of the operational amplifier U3A, and the capacitor C28 and the resistor R26 are connected in parallel. The output end of the operational amplifier U3A is further connected with a resistor R41 and a capacitor C44 which are connected in series and grounded, a resistor R33 is further externally connected between the positive electrode of the phototube D4 and the in-phase input end of the operational amplifier U3A, a resistor R39 and a capacitor C38 are further connected in parallel, and the resistor R39 and the capacitor C38 are connected in series. And the concentration or the diameter of the particulate matter can be obtained by processing the photoelectric signal.

The invention discloses a photoelectric tube alignment method and an alignment device thereof, and relates to the technical field of photoelectric tube alignment, the photoelectric tube alignment device comprises a photoelectric tube and a reflecting plate, and further comprises a positioning assembly and a calibration assembly, the positioning assembly comprises a positioning cylinder, and a limiting ring used for fixing one end of the photoelectric tube is arranged in the positioning cylinder; a supporting piece for limiting and supporting the other end of the photoelectric tube is arranged in the positioning cylinder; the calibration assembly comprises an adjusting part arranged in the positioning cylinder, the limiting ring rotates in the adjusting part through the transmission shaft, and the end, located in the limiting ring, of the photoelectric tube is aligned with the central axis of the transmission shaft. The first motor is controlled through the controller, and left-right angle calibration of the photoelectric tube relative to the reflecting plate can be achieved; the second motor is controlled by the controller, so that the vertical elevation angle calibration of the photoelectric tube relative to the reflecting plate can be realized; and through the mutual cooperation of the first motor and the second motor, the photoelectric tube can be accurately, rapidly and automatically calibrated through the analysis of the controller.

The utility model belongs to the technical field of tobacco production equipment, and discloses a metering tube cleaning device and a feeding system. The metering pipe cleaning device comprises a blowing pipe, a gas assembly and a driving assembly, the blowing pipe is arranged in the metering pipe, the metering pipe and the blowing pipe extend in the first direction, and a plurality of small blowing holes are formed in the blowing pipe in the first direction at intervals; the gas assembly comprises a gas pipe and a gas compressor, the gas pipe is communicated with the gas compressor and the blowing pipe, and the gas compressor provides gas into the blowing pipe through the gas pipe and sprays the gas out of the small blowing holes; the driving assembly can drive the injection pipe to move in the metering pipe. The blowing pipe is used for blowing the tobacco leaves in the metering pipe and the blowing pipe can move in the metering pipe, so that the blowing area of the metering pipe is increased, the tobacco leaves are prevented from adsorbing the photoelectric tube, the identification error of the photoelectric tube is avoided, and the production rhythm and efficiency are improved.

The utility model discloses a cleaning device for a photoelectric tube correlation area on a feeding machine, which comprises two cross rods respectively arranged at the upper end and the lower end of an organic glass plate of the feeding machine, a machine rod arranged between the two cross rods along the vertical direction, a sweeping piece arranged on the machine rod and used for cleaning the organic glass plate, and a photoelectric tube arranged on the organic glass plate and used for cleaning the organic glass plate. The two transverse rods are each sleeved with a guide wheel, the guide wheels can slide along the transverse rods so as to drive the machine rod and the transverse sweeping piece to slide, a first air compression guide pipe is arranged on the left sides of the guide wheels on the two transverse rods, and a second air compression guide pipe and the transverse sweeping piece are arranged on the right sides of the guide wheels on the two transverse rods. According to the cleaning device for the correlation area of the photoelectric tube on the feeding machine, the transverse sweeping piece is powered by compressed air provided by the two groups of compressed air guide pipes and reciprocates left and right along with the rod in the horizontal direction, so that an organic glass plate is cleaned, namely, the correlation area of the photoelectric tube is cleaned, and the working efficiency is improved. And the probability of false signals of the photoelectric tube caused by the fact that the organic glass plate is shielded by tobacco dust is greatly reduced.

The invention relates to a retrofit device (100) for a Mode 2 charging cable (30) of an electrically operated vehicle, comprising a unit (10) at least comprising a photocell (12) and an actuator (14). The Mode 2 charging cable (30) has at least one charging current regulator (32) with an operating element (34) for adjusting a charging current of the vehicle. The unit (10) is designed to be arranged on the charging current regulator (32) and to actuate the operating element (34) of the charging current regulator (32) with the actuator (14). The current solar radiation can be determined by means of the photocell (12) of the unit (10). The charging current in the Mode 2 charging cable (30) can be adjusted during intended operation by means of the unit (10) depending on the determined current solar radiation. The invention further relates to a use of a retrofitting device (100).