335 results about "Infrared detector" patented technology

The invention relates to the technical field of gas leakage detection, and discloses an infrared imaging radiation correction method and system for gas leakage detection, and the method comprises the steps: obtaining the distribution data of dark current noise, and the mapping relation parameters of an image gray value and a radiation brightness value; acquiring infrared radiation of the gas leakage scene by using an infrared detector to obtain an original infrared image; based on the distribution data of the dark current noise, performing pixel-by-pixel compensation on the original infrared image to generate an infrared image after dark current correction; extracting the radiation intensity distribution of the infrared image after dark current correction, calibrating the radiation value of each pixel in the infrared image based on the mapping relation parameter between the image gray value and the absolute radiation brightness value, converting the image gray value into the absolute radiation brightness value, and generating the infrared image after radiation calibration; and outputting an infrared image after radiometric calibration for subsequent gas leakage area identification and feature analysis. According to the invention, a high-quality and quantifiable radiation quantification image can be output.

The invention provides a preparation method of a barrier type antimonide infrared detector. The preparation method comprises the following steps: selecting a gallium antimonide substrate; a gallium antimonide buffer layer, an indium arsenide heavily-doped layer, a class II superlattice absorption layer and an aluminum-arsenic-antimony barrier layer are sequentially grown on the substrate in an epitaxial mode through a molecular beam epitaxy method; mechanically stripping the hexagonal boron nitride two-dimensional material, and transferring the stripped hexagonal boron nitride to the aluminum-arsenic-antimony barrier layer to form a Van der Waals heterojunction and composite barrier layer structure; depositing electrodes by using an ultraviolet lithography technology and a thermal evaporation mode to form one electrode arranged on the gallium antimonide buffer layer and the other electrode arranged on the boron nitride; a large-numerical-aperture micro-lens array is processed on a substrate, and the micro-lens array is composed of gallium antimonide cylinders with a phase modulation function; therefore, the antimonide medium-wave infrared detector with the composite barrier layer can be formed, the quantum efficiency is improved, the order of magnitude of dark current is reduced, and room-temperature medium-wave infrared detection can be realized.

The invention discloses an infrared four-waveband composite annular aperture folded imaging optical system, belongs to the technical field of optical catadioptric optical paths, and aims to solve the problem that 1550nm / 1064nm dual-laser and medium-wave / long-wave infrared four-waveband composite detection is difficult to realize at the same time in the conventional annular aperture imaging technology. The system comprises a primary mirror, a secondary mirror, a 1064nm laser spot correction mirror, a 1550nm laser spot correction mirror, a 1064nm laser spectroscope, a 1550nm laser spectroscope, a broadband infrared detector, a 1550nm laser detector and a 1064nm laser detector. And high-performance common-aperture composite detection of 1064nm / 1550nm dual laser and medium-wave / long-wave infrared four wavebands is realized through a multi-stage light splitting mechanism. The limitation that a traditional annular aperture system is single in wave band is broken through, and the all-weather sensing and target recognition capability of the system in a complex environment is remarkably improved.

The invention provides an etching method of a double-color second-class superlattice infrared detector, and belongs to the technical field of chip manufacturing. The method comprises the following steps: providing a double-color second-class superlattice infrared detector, and forming a photoresist mask on the surface of the double-color second-class superlattice infrared detector; under the condition that the ratio of the longitudinal etching rate to the transverse etching rate is not less than 5: 1, performing dry etching on the surface of the double-color second-class superlattice infrared detector to obtain an initial mesa structure; the initial mesa structure is subjected to wet etching, a middle mesa structure is obtained, the wet etching time is smaller than or equal to 2 min, and the wet etching temperature is smaller than or equal to 10 DEG C; and post-processing the middle table-board structure to obtain the table-board structure. Through organic combination of a high-anisotropy forming effect of dry etching and a low-damage repairing effect of wet etching, the low surface damage characteristic is considered while high aspect ratio etching is realized, the dark current of the device is fundamentally reduced, and the intrinsic detection performance of the device is improved.

The invention relates to a small-sized light-weight large-target-surface infrared athermalization optical system, and the optical system consists of a first meniscus positive lens, a meniscus negative lens, a second meniscus positive lens and a third meniscus positive lens which are sequentially and coaxially arranged from an object side to an image side, the second meniscus positive lens and the third meniscus positive lens are the same lens, the first meniscus positive lens, the second meniscus positive lens and the third meniscus positive lens are all made of chalcogenide glass IRG206, and the optical system ensures that edge imaging is clear and the image surface diameter reaches 20mm through optimal arrangement of focal power and optical materials of all the lenses and intervals among all the lenses, so that the image quality is improved. The long-wave infrared imaging device can adapt to a 1280 * 1024 array and a long-wave uncooled infrared detector with the pixel size of 12 microns, and has the advantages of high imaging quality, small size and light weight.

An infrared detector includes a tuning fork resonator comprising an mechanical-to-electrical transduction mechanism; a metamaterial absorber residing on at least one side of the tuning fork resonator, the metamaterial absorber comprising at least a material layer with subwavelength inclusions; and a signal processing circuit to translate the electrical signal into an amplitude of mechanical motion of the tuning fork.

This invention discloses a tunable broadband photodetector based on a Schottky junction, comprising: an N-type silicon substrate, a gate ferroelectric dielectric, a gate electrode, a source electrode, and a drain electrode; the source electrode, gate ferroelectric dielectric, and drain electrode are sequentially disposed on the N-type silicon substrate, and the gate electrode is disposed on the gate ferroelectric dielectric; the gate ferroelectric dielectric is made of hafnium oxide, a ferroelectric material, and the gate ferroelectric dielectric and the gate electrode together constitute a ferroelectric gate; the gate electrode is made of a transparent metal oxide. This invention utilizes silicon CMOS manufacturing technology and a simple device structure, greatly reducing the fabrication difficulty of silicon-based infrared detectors, and by leveraging the characteristic that the polarization intensity of ferroelectrics weakens under infrared light, extends the detection long-wavelength limit of silicon-based infrared detectors to the near-infrared band. This invention also discloses a method for fabricating and applying a tunable broadband photodetector based on a Schottky junction.

The invention discloses a long-wave infrared detector based on electric field intensity distribution regulation and control and a preparation method, and relates to the technical field of semiconductors, the long-wave infrared detector comprises a substrate, a bottom contact layer, a hole barrier layer, an absorption layer, an electron barrier layer and a top contact layer which are sequentially arranged from bottom to top; wherein the bottom contact layer and the hole barrier layer adopt an InAs / GaSb / AlSb / GaSb superlattice structure; the absorption layer, the electron barrier layer and the top contact adopt an InAs / GaSb superlattice structure; the doping concentration of the absorption layer is greater than the doping concentration of the hole barrier layer and the electron barrier layer. The doping concentration of the absorption layer is set to be greater than that of the barrier layer, so that the width of a depletion region of the absorption layer is reduced, the depletion region deviates towards the barrier layer, the probability of SRH recombination is reduced, G-R current can be effectively inhibited, and the overall dark current level is reduced.

The application provides an infrared absorption material based on doping regulation, a preparation method and an infrared detector. By introducing selenium atoms to replace tellurium atoms in a sodium gallium telluride material, the material is doped according to a doping ratio of 1:4 to 1:2 of atomic weight, the energy band structure and optical properties of the material are regulated, a new infrared absorption material is obtained, and the light absorption performance of the material in the infrared wave band is significantly improved. According to the component characteristics of the infrared absorption material, a specific preparation scheme is provided, the preparation is completed by grinding, secondary melting and annealing treatment of the set principle mass of sodium single substance, gallium single substance, tellurium single substance and selenium single substance, and the band gap and absorption intensity are accurately adjusted, and the symmetry and crystal stability of the material are also considered.

This application relates to the technical field of grain processing quality inspection, and in particular to a grain quality infrared image recognition equipment, which includes a housing with a turntable rotatably mounted inside the housing. A drive source is provided between the turntable and the housing, and multiple storage cylinders are arranged on the turntable. This utility model, through the annular layout design of the turntable carrying multiple storage cylinders, combined with the rotation control of the drive source, can realize multi-channel parallel detection of grain samples. When one storage cylinder is under the infrared detector for detection, other storage cylinders can simultaneously complete operations such as feeding, unloading, or vibrating and spreading, avoiding the "intermittent detection" drawback of traditional single-channel equipment. At the same time, the two discharge pipes, combined with the eccentric setting of the electric telescopic rod, can automatically switch the opening and closing state of the baffle according to the detection results, realizing dynamic sorting of qualified and unqualified grains without manual intervention, significantly improving the detection and sorting efficiency in large-scale grain processing scenarios.

The application discloses a multi-modal post-fusion invisibility method based on reinforcement learning, an electronic device and a medium, and the method comprises the following steps: acquiring a visible light image and an infrared image; generating an initial mask by an agent; setting the initial mask for the visible light image and the infrared image; inputting the visible light image with the mask into a visible light detector to obtain a confidence score of a target object in a visible light mode; inputting the infrared image with the mask into an infrared detector to obtain a confidence score of the target object in an infrared mode; performing post-fusion processing on the above scores to obtain a post-fusion confidence score; when the above three confidence scores are all less than a threshold value, the target object completes invisibility; otherwise, a reward function is calculated, reinforcement learning parameters are updated, an updated mask is generated by the agent, the above steps are repeated for iteration, and the above three confidence scores are all less than the threshold value.

The application relates to the technical field of photoelectric detection, and discloses an infrared detector and a preparation method thereof. The infrared detector comprises a substrate, a metal sensitive film, a light absorption enhancement structure and a current transmission structure. The light absorption enhancement structure comprises a Schottky junction. The Schottky junction is formed by etching an arrayed pattern on a silicon substrate, the arrayed pattern is filled with metal, the silicon substrate is in contact with the metal to form the Schottky junction, and the Schottky interface is subjected to roughening treatment to enhance hot electron absorption. The current transmission structure comprises a silicon substrate, a P-type conductive structure, an N-type conductive structure and a dielectric material. The current generated by the light absorption enhancement structure is led out from the P-type and N-type conductive structures. The Schottky interface is subjected to roughening treatment to enhance hot electron absorption, a back-illumination method is adopted, and the free path of hot electron transmission is shortened, so that the quantum efficiency of the detector is improved.

The invention relates to the field of semiconductor material manufacturing, in particular to a molecular beam epitaxy heterogeneous base HgCdTe material and a preparation method thereof. In order to overcome the double defects of high dislocation density and out-of-control Se atom diffusion in the existing heterogeneous-base HgCdTe molecular beam epitaxy technology, a dislocation reaction is triggered by designing an HgSe superlattice structure, and an As-doped HgTe diffusion blocking layer is further constructed; finally, the molecular beam epitaxy heterogeneous base HgCdTe material can meet the core requirements of low dislocation density, zero Se diffusion and high stability of a high working temperature (greater than or equal to 150K) infrared detector. The problems that due to the fact that the dislocation density of a molecular beam epitaxy heterogeneous base HgCdTe is high, the dark current of a device is sharply increased, the blind pixel rate is increased, and Se diffusion of an epitaxial structure containing Se is out of control are solved.

The present application provides an uncooled infrared detector readout circuit and an uncooled infrared detector. The readout circuit comprises an uncooled infrared focal plane array (10), a pixel gating module (20), a logic control module (70), and a readout circuit module (40). The uncooled infrared focal plane array (10) comprises a plurality of infrared sensitive pixels (101) arranged in an array; the pixel gating module (20) is connected to the infrared sensitive pixels (101); the logic control module (70) and the pixel gating module (20) are connected to some infrared sensitive pixels by means of a logic gate circuit (80), and the logic control module (70) is configured to be capable of controlling none of the infrared sensitive pixels connected to the logic control module (70) to be gated; and the readout circuit module (40) is capable of performing signal readout on the gated infrared sensitive pixels.

The invention belongs to the technical field of battery foil rolling detection, and particularly relates to a method for testing a battery foil by using double thickness gauges of an aluminum foil rolling mill, which comprises the following steps of: mounting a sensor assembly on the aluminum foil rolling mill, and acquiring roller rotating speed, rolling force and roller vibration frequency of the aluminum foil rolling mill in real time; and the calculation equipment carries out filtering processing on the original thickness data of the battery foil collected by the thickness gauge based on the roller rotating speed, the rolling pressure and the roller vibration frequency of the aluminum foil rolling mill, instantaneous fluctuation data are filtered, and infrared detectors are arranged on the two sides of a discharging port of the aluminum foil rolling mill. Filtering processing is carried out on thickness data of the battery foil by combining operation parameters of a rolling mill, interference data of vibration of the battery foil on thickness detection in the roller operation process is recognized and removed, and meanwhile detection and cleaning correction are carried out on surface impurities, so that the thickness of a battery foil body and the thickness of the impurities are accurately distinguished; the effect of eliminating false fluctuation and impurity interference is achieved, and the authenticity of thickness detection data is improved.

The invention discloses an infrared radiation calibration method and device considering a test distance, equipment and a storage medium. The method comprises the following steps: constructing an infrared radiation physical model considering the integral time of an infrared detector and the test distance of a target; and utilizing the training set and the coefficient learning network model to fit parameters in the infrared radiation physical model to obtain an optimal solution of the parameters, and applying the optimal solution to the infrared radiation physical model to complete infrared radiation calibration. According to the method, the influence of the test distance and the integral time on the relationship between the gray scale image and the radiation brightness is considered, so that the infrared radiation physical model is constructed, the accuracy of the radiation calibration result is improved, and the accuracy of the radiation calibration result is improved by utilizing the gray scale image under different test distance and integral time combinations. And parameters of the infrared radiation physical model are optimized by a training set consisting of the grey-scale maps and the black-body radiance corresponding to each grey-scale map, so that the infrared radiation physical model can set an optimal solution, and the measurement precision of the infrared radiation measurement system on the target radiance distribution is improved.

The utility model discloses a lever-type yarn-breaking automatic stop mechanism, which relates to the technical field of yarn-breaking automatic stop mechanisms and comprises a driving plate, a supporting sleeve, a lever-type yarn-breaking automatic stop mechanism, a lever-type yarn-breaking automatic stop mechanism and a lever-type yarn-breaking automatic stop mechanism, the supporting ring is fixedly connected with the supporting sleeve; the infrared detector is arranged on the fixed plate and is fixedly connected with the fixed plate; the driving block is arranged at the bottom of the driving plate and is in fit sliding connection with the bottom of the driving plate; by arranging an elastic mechanism and a driving block, the extrusion of a driving plate on the driving block is buffered, and the situation that the yarn is broken or damaged due to the fact that the extrusion force of a supporting ring on the yarn is large is avoided; and by arranging the lifting mechanism, lifting of the driving block is achieved, different yarns can be extruded conveniently, and the supporting ring can respond to the infrared detector more quickly when the yarns are broken.

The utility model provides a blending device with an oil product quality monitoring function, which relates to the technical field of oil production and comprises a blending tank, a blending cavity and a storage cavity are respectively arranged in the blending tank, a sleeve is arranged at the central position in the blending cavity, a connecting column is embedded in the sleeve, and a rotating rod is rotatably connected in a connector on the surface of the connecting column. Stirring blades are fixed to the two ends of the rotating rod, a base plate and a discharging plate are connected between the blending cavity and the storage cavity, an infrared detector and a receiver are installed at an installation opening in the inner wall of the blending tank and an installation opening in the top face of the discharging plate respectively, and the infrared detector and the receiver are vertically aligned in position. According to the stirring device, the vertical circulating flow of liquid can be enhanced, stirring is more uniform, the blades are adjustable, the stirring device can adapt to liquid with different viscosities, densities and components, the more accurate stirring effect is achieved, and meanwhile the water content in an oil product can be monitored in the blending process in an infrared light detection mode.

The invention discloses an infrared detector sensitive element structure, a preparation method and an infrared detector, and is applied to the field of infrared detection.The infrared detector sensitive element structure comprises a first electrode, a pyroelectric functional layer and a second electrode; the pyroelectric functional layer is a polyvinylidene fluoride based copolymer thin film layer, and the polyvinylidene fluoride based copolymer thin film layer directly absorbs infrared light; the first electrode is arranged on the surface of one side of the pyroelectric functional layer, the second electrode is arranged on the surface of the other side of the pyroelectric functional layer, and the surface, provided with the second electrode, of the pyroelectric functional layer is an infrared light incident surface; the second electrode is a single-layer graphene electrode; and the single-layer graphene electrode has permeability to infrared light. The polyvinylidene fluoride-based copolymer film layer is used as a pyroelectric functional layer, and the single-layer graphene electrode is used as an electrode of an infrared light incidence side, so that the thickness of the functional layer can be reduced, and the functional layer is enabled to directly dominate absorption of infrared radiation, thereby reducing the heat capacity of the device, and improving the response sensitivity and response speed of the device.

The invention discloses a preparation method of a tellurium-cadmium-mercury infrared detector with controllable arsenic injection dosage, and relates to an infrared detector technology, and the method comprises the steps: growing a sacrificial layer on a pretreated tellurium-cadmium-mercury chip, the sacrificial layer being a CdTe film layer, and adjusting and controlling the injection dosage of tellurium-cadmium-mercury-arsenic As based on the CdTe film layer; carrying out photoetching on the tellurium-cadmium-mercury chip with the sacrificial layer, and carrying out As ion implantation, so that the implanted As ions enter the surface of the N-type tellurium-cadmium-mercury substrate of the tellurium-cadmium-mercury chip; after As ions are injected, high-temperature activation is carried out to realize As activation; growing a passivation layer on the surface of the mercury cadmium telluride chip after As activation and performing heat treatment; and carrying out photoetching and electrode forming on the surface of the tellurium-cadmium-mercury chip after heat treatment. The invention provides a novel method for regulating and controlling the tellurium-cadmium-mercury-arsenic injection dosage, injection damage can be reduced, the channel effect can be inhibited, the injection is more uniform, and the performance of a tellurium-cadmium-mercury p-n junction is improved.

This invention discloses a single-light-source composite sensor, comprising a housing with an air inlet and an air outlet, a control circuit board disposed within the housing, and a broadband light source, an infrared detector, and a photodetector disposed on the control circuit board. An inclined first filter is positioned in front of the broadband light source. This invention employs a broadband light source capable of emitting different wavelengths as a common light source, and places a first filter in front of the broadband light source. The first filter selectively reflects and transmits the light emitted by the broadband light source, selecting appropriate wavelengths for the detection of particulate matter and gases. This invention effectively reduces the size of the composite sensor and lowers power consumption.

The utility model discloses a dosing device detection barrel, which relates to the technical field of detection barrels and comprises a barrel body, a discharge port is arranged on the side wall of the barrel body, a rotating motor is mounted at the bottom of the barrel body, a turntable is mounted at the top of the rotating motor, a scraper blade is mounted at the top of the turntable, a cover plate is mounted at the top of the barrel body, and the cover plate is mounted at the bottom of the barrel body. An infrared detector is installed on the inner wall of the cover plate, and a sliding rod is installed at the bottom of the cover plate. Through the arrangement of the sampling port, the sampling sleeve, the pressing rod, the sealing rubber head and the reset spring, the pressing rod is pressed downwards, air at the bottom of the sampling sleeve is exhausted through the pressing rod, after the pressing rod is loosened, the pressing rod is jacked upwards through the reset spring, liquid medicine or additives in the barrel body can be extracted while the pressing rod is jacked upwards, and the liquid medicine or the additives in the barrel body can be extracted. Then the sampling sleeve is taken out, the PH value, the concentration and other data of the liquid medicine or the additive extracted from the interior of the sampling sleeve are detected, and it is ensured that the proportion of the liquid medicine or the additive reaches the standard.

The application discloses a detector assembly structure of a split refrigerating machine and an infrared thermal imager, and relates to infrared detector technology, comprising a front lens assembly, a lens front cabin body, a split detector assembly, a rear lens assembly, a refrigerating machine expander assembly and a refrigerating machine compressor assembly; the split detector assembly is arranged separately from the lens front cabin body, and the rear lens assembly is arranged in the lens front cabin body; the split detector assembly comprises an integrated assembly formed by a split detector and installation and heat dissipation components of the split detector, and the split detector assembly is installed to a detector bottom plate; the split detector assembly serves as an independent cabin body, is directly in airtight isolation with the lens front cabin body through the rear lens assembly, and is free of other airtight arrangements. By adopting the structure, a large amount of subsequent disassembly, adjustment and debugging work caused by the expiration or failure of the refrigerating machine can be solved.

The utility model relates to the technical field of constant volume devices, and discloses an infrared auto-induction constant volume device which comprises a workbench, a fixing pipe is installed at the position, close to the rear side, of the middle of one side of the top of the workbench, a lifting threaded rod penetrates through the middle of the top of the fixing pipe and is in sliding connection with the middle of the top of the fixing pipe, and an installation base is installed at the top of the lifting threaded rod. A telescopic block penetrates through and is slidably connected to the middle of one side wall of the mounting base, and an infrared detector is mounted on one side of the middle of the bottom of the telescopic block. According to the utility model, through the cooperation of the infrared detector and the signal receiver, the automatic induction liquid adding is realized. When the liquid does not reach the scale mark, the liquid adding device continuously works; and once the scale marks are reached, the liquid adding device automatically stops, so that the accuracy and the stability of constant volume are greatly improved, the influence of personal errors on experimental results is reduced, and the sample container can be firmly fixed by arranging the clamping mechanism on the sliding block and utilizing the transmission of the electric steel and the arc-shaped clamping block.

The invention discloses an InAs-GaSb class-II superlattice infrared detector material simultaneously adaptive to a P-on-N reading circuit and an N-on-P reading circuit. The InAs-GaSb class-II superlattice infrared detector material comprises a pB [pi] B [p] type InAs / GaSb superlattice material or an nB [pi] B [n] type InAs / GaSb superlattice material. According to the InAs-GaSb class II superlattice infrared detector material, two barriers with opposite polarities respectively delay unidirectional movement of electrons and holes under voltage driving, so that dark current is not too large no matter under forward bias voltage or reverse bias voltage. The focal plane array prepared by the structural material can be adapted to a P-on-N readout circuit and can also be adapted to an N-on-P readout circuit.

This invention discloses a drying device. The design of the base and detachable drying baskets allows for convenient loading and unloading of drying items, improving the ease of daily drying operations. The collaborative work of the rainproof mechanism, detection mechanism, and electronic control module changes the traditional passive situation of relying on manual supervision and maintenance for drying. Addressing the unpredictable weather conditions of summer, frequent typhoons, and the foggy and windy autumn, the device can sense weather changes in real time and automatically trigger protective actions. It can quickly unfold a tarpaulin to cover the drying baskets without manual intervention, preventing the dried items from getting wet from rain, being blown away by strong winds, or being damaged by fog and moisture, thus ensuring the quality of the dried goods. Simultaneously, the infrared detector and camera in the detection mechanism, along with a buzzer, can promptly detect and drive away small animals that try to steal the dried goods, reducing food waste and further minimizing losses for the public.

This invention provides an infrared light source structure and its fabrication method, as well as a gas sensor and its measurement method. The infrared light source structure includes a substrate, an opening, an insulating layer, a heating and radiating layer, and a metasurface filtering layer. The metasurface filtering layer includes a dielectric layer and a metal layer encased by the dielectric layer. The metal layer includes several first metal units and several second metal units on the same layer. Each first metal unit includes multiple first metal structures arranged in an array and having multiple first through-holes. Each second metal unit includes multiple second metal structures arranged in an array and having multiple second through-holes. The topologies of the first and second metal structures are the same, but their period lengths and the sizes of the first and second through-holes are different. The two narrowband infrared radiations with different wavelengths generated can be directly acquired by an infrared detector without additional processing, thus improving the energy of the infrared radiation.

The invention relates to the technical field of warp testing, in particular to a warp initial tension and damage testing device and method. According to the technical scheme, the device comprises a first infrared detector and a second infrared detector which are fixedly installed on the inner wall of a conveying machine body, warp yarn penetrates through the first infrared detector and the second infrared detector, the inner wall of the conveying machine body is rotationally connected with an upper positioning shaft, and the inner wall of the conveying machine body is connected with a sliding block in an up-down sliding mode; the side portion of the sliding block is rotationally connected with a lower movable shaft, and warps surround the upper positioning shaft and the lower movable shaft to form an oval ring. The lower movable shaft is pressed on the warp yarn, the tension of the warp yarn is compared with the gravity, when the tension is larger than the gravity, the lower movable shaft moves upwards, the distance sensor transmits data to the computer, the number of hairiness is read through the first infrared detector and the second infrared detector, the change of the number of the hairiness on the warp yarn is compared, and warp yarn damage is judged.

The utility model provides an infrared detector packaging device and an infrared module, relates to the infrared packaging technology field, the infrared detector packaging device comprises a substrate and a housing, the substrate is provided with a photosensitive area, one end of the housing is used for tightly connecting with the substrate, the housing is covered on the photosensitive area carried on the substrate, the housing is provided with a light transmission channel, and the light transmission channel is communicated with the light transmission channel. The light-transmitting channel is arranged right opposite to the photosensitive area, the shell covers the photosensitive area borne on the substrate, background radiation possibly entering from the periphery of the photosensitive area is restrained, only one light-transmitting channel is arranged at the position, corresponding to the front face of the photosensitive area, of the shell, the infrared detector can receive external infrared radiation conveniently, entering of the background radiation can be reduced to the maximum extent, and the light-transmitting channel is arranged on the shell. And excessive influence of background radiation on imaging quality and sensitivity of the infrared detector in use is avoided.

This utility model discloses an infrared detection-based inspection drone, belonging to the field of drone technology. It includes a drone body, an infrared detector body, and a mounting assembly. A top plate is fixedly connected to the top of the infrared detector body, and the top plate has mounting holes. The mounting assembly includes a mounting plate with a sliding groove inside. Sliding plates are slidably connected to both sides of the sliding groove. A threaded rod is rotatably connected through the mounting plate, and the sliding plates are threadedly connected to the threaded rod. A cavity is provided inside the sliding plate, and an adjusting plate is located within the cavity. A first bolt is fixedly connected to the bottom of the adjusting plate. This infrared detection-based inspection drone adjusts the distance between the two sliding plates by rotating the threaded rod, and then adjusts the position of the two first bolts in each cavity. Adjustment can be made according to the positions of the four mounting holes on the top plate, allowing for installation and fixation according to different types of infrared detector bodies. The operation is simple and convenient, and it has strong applicability.