113 results about "Ccd detector" patented technology

The invention discloses a multi-optical fiber bundle imaging mode dimension space conversion plasma spectrum analysis system, which is characterized in that a two-dimensional optical fiber array comprising M * N optical fiber micropores is arranged on an optical fiber area array, a one-dimensional optical fiber array comprising M * N optical fiber micropores is arranged on an optical fiber linear array, and an optical fiber surface is connected by adopting M * N optical fibers according to a preset connection relation, the two-dimensional optical fiber array is converted into the one-dimensional optical fiber array, the optical grating disperses light transmitted by the optical fiber linear array, then the light is focused by the imaging lens and then is subjected to optical imaging by the CCD detector, and the spectral data conversion module converts a spectral image into a spectral data graph of each optical fiber channel. According to one-to-one correspondence of optical fibers in the two-dimensional optical fiber area array and the one-dimensional optical fiber linear array, the distribution state of elements in the plasma is reconstructed, and multi-optical-fiber sample element content detection is achieved.

The invention relates to a method for detecting a marine corrosion primary process, which comprises the following steps of: constructing three vacuum chambers and connecting the three vacuum chambers by using vacuum pipelines to form a detection system; ultrafast femtosecond laser with the repetition frequency being 1 kHz, the single pulse energy being 6 mJ, the pulse width being 35 fs and the central wavelength being 800 nm is generated through a pulse amplifier; one beam of 2mJ enters a vacuum chamber pipeline to be transmitted as a pulse light beam for detection in the original process of ocean corrosion, the other beam of 4mJ is transmitted outside the vacuum chamber to be used as a pump pulse light beam, and 400 nm pump pulse laser is generated through frequency doubling of a BBO crystal; the pump light beam and the detection light beam are incident on a sample of a sample mechanism in the third vacuum chamber, then the pump light beam is blocked, and only the detection light beam is incident on the sample; xUV light beams reflected from the sample are subjected to spectral dispersion and then enter a CCD detector, and the dynamic response of the sample after being excited by the pump light is monitored by measuring the transmissivity, reflectivity or absorption change of the surface of the sample.

The present invention discloses a vibration suppression system and method for a star simulation system using laser interference detection. The system includes a laser light source, a first beam splitter, a collimator set, a second beam splitter, a mirror, a detection convergent mirror assembly, a CCD detector, a computer control system, a jitter compensating mirror and a flat splitter; the optical path of the whole system includes a reference optical path and a detection compensating signal optical path. The reference optical path and the detection compensating signal optical path converge at the same time on the CCD detector to constitute a vibration detection interference optical path, and the computer control system performs feedback compensation according to the interferogram intensity change formed by the vibration detection interference optical path. Both the CCD detector and the jitter compensating mirror are connected to the computer control system. The present invention improves the accuracy of spacecraft attitude tracking correction by adding a laser light source and a second beam splitter so that both star simulation imaging and optical path jitter compensation correction can be performed.

The invention relates to an improved cage type light field imaging system and a debugging method, and belongs to the technical field of light field imaging, and the system comprises a main lens which is used for collecting light spots on an object surface, and enabling the light emitted by the light spots to be imaged on a micro lens; the micro lens is used for separating the light collected by the main lens into light beams in different directions and imaging the light beams on a virtual image plane; the relay lens is used for carrying out secondary imaging on the light beams in different directions to different pixels of a CCD detector of the camera; the relay lens comprises a first lens and a second lens, the focal lengths of the first lens and the second lens are positive, the focal length of the first lens is smaller than that of the second lens, and the magnification of the relay lens is larger than 1: 1. In the debugging process of the system, parallel light beams are arranged in front of the micro lens, and the position of the micro lens is determined in the mode that the parallel light beams vertically enter the micro lens. The system is not influenced by vignetting and distortion generated by the relay lens any more, and the debugging method improves the positioning precision of the micro lens.

The invention relates to a high-power optical fiber device refractive index dual-wavelength polarization holographic microscopic three-dimensional detection system based on a metasurface cylindrical lens and a working method, and belongs to the field of optical measurement. Comprising a first laser, a second laser, a first reflecting mirror, a first non-polarized beam splitting prism, a first half-wave plate, a beam expander, a polarized beam splitting prism, a second reflecting mirror, a first metasurface cylindrical lens pair, a Wollaston prism, a second half-wave plate, a third reflecting mirror, a second metasurface cylindrical lens pair, a sample optical fiber, a second non-polarized beam splitting prism and a first optical filter. The device comprises a first optical filter, a first CCD detector, a second optical filter, a second CCD detector and a computer. A metasurface cylindrical lens, a dual-wavelength polarization phase fusion interference detection method and a full-aperture aberration elimination filtering back projection refractive index three-dimensional reconstruction method are adopted, and the three-dimensional distribution detection precision and efficiency of the refractive index and welding defects of the high-power optical fiber device are further improved.

The invention belongs to the technical field of fluorescence spectrum collection, and particularly relates to a quasi-three-dimensional fluorescence spectrum collection method and spectrograph based on a software phase locking technology, and the method comprises the following steps: respectively modulating coprime modulation frequencies of a plurality of laser light sources with different wavelengths, and synchronously exciting the laser light sources to the surface of a sample; a fluorescence signal generated on the surface of the sample is received and processed by a linear array CCD detector to obtain a multi-wavelength spectral signal simultaneously containing background light, scattered light and fluorescence components; inputting the multi-wavelength spectral signal into a software phase-locked amplification system, introducing a Costas ring to the software phase-locked amplification system for real-time tracking and correction, and generating a synchronous reference signal consistent with the laser modulation frequency; inputting the synchronous reference signal into a software lock-in amplifier, and extracting a plurality of pure fluorescence spectrum components excited by specific-frequency laser; and synthesizing the plurality of pure fluorescence spectrum components to finally form a quasi-three-dimensional fluorescence spectrum.

The invention discloses a spectral confocal efficient three-dimensional measurement device and method based on a spatial light modulator. The device comprises an illumination module and a detection module. The illumination module comprises a white light LED light source, a collimator, an LED condenser, a digital micromirror device DMD and a dispersion objective lens; the detection module comprises an imaging objective lens, a CCD detector and computer processing equipment. According to the invention, traditional point-by-point spectrum confocal measurement is expanded to area array type measurement, so that the measurement speed can be effectively improved; meanwhile, different from a scanning type or fixed pinhole type parallel measurement scheme, the invention uses a pinhole array with controllable diameter and spacing, thereby improving the flexibility and lateral resolution of measurement.

The invention provides a calibration method for a zero plane of an FLS mechanism in photoetching machine equipment and the photoetching equipment, and relates to the technical field of photoetching machines. The method comprises the following steps: determining light spot positions collected by a CCD detector when a workpiece table is at different moving heights, and constructing a relation model between the light spot positions and the height of a detected surface based on the moving heights and the light spot positions corresponding to the moving heights, substituting the position of a target light spot corresponding to the central position of the optical axis of the objective lens into the constructed relation model, calculating to obtain the optimal focal plane height, namely the zero plane of the FLS mechanism, calculating to obtain the adjustment height required by the FLS mechanism by using the initial height and the target height of the FLS mechanism, and controlling the FLS mechanism to move along the vertical direction based on the adjustment height, so as to obtain the target focal plane of the FLS mechanism. And zero plane calibration is completed.

The invention discloses a stacking device and a circuit board hot melting production machine, and the stacking device comprises a mounting rack which can lift and translate to move and stack materials; the material taking mechanism is mounted on the mounting frame and comprises a rotating frame, a material sucking assembly and a material pressing assembly, the material sucking assembly and the material pressing assembly are arranged on the rotating frame, and the rotating frame is connected with the mounting frame and used for driving the to-be-stacked products to horizontally rotate so as to be aligned; and the detection mechanism is mounted on the mounting frame and comprises a CCD detector and a translation assembly used for driving the CCD detector to translate, and the translation assembly is connected with the mounting frame. According to the stacking device and the circuit board hot melting production machine, materials can be conveniently stacked in an aligned mode, and repeated adjustment caused by specification changes is reduced.

The invention provides a dual-wavelength coaxial aiming system capable of achieving automatic collimation. The dual-wavelength coaxial aiming system is used for inertial confinement nuclear fusion (ICF) picosecond terminal light path cone target posture adjustment and target spot positioning aiming. The system comprises an automatic collimation light path and an aiming light path with different working wavelengths, the automatic collimation light path comprises a light source, a beam splitter prism, a secondary mirror, a reflector and a CCD detector. The aiming light path consists of a primary mirror, a secondary mirror, a lens group, a beam splitter prism and a CCD (Charge Coupled Device) detector which are coaxial; according to the system, a secondary mirror is multiplexed, and automatic collimation and positioning aiming are achieved through transmission and reflection of different wavelengths; the flint and the crown glass are combined to correct color differences of different wavelengths; dual-wavelength light path image planes are at the same position; the system adopts a coaxial two-reflector structure, and is compact in structure and small in size.

The invention relates to the technical field of radiation imaging, and discloses a rapid radiation imaging system and method integrating optical imaging and coding hole technology, and the system comprises a spectral imaging subsystem and a gamma ray imaging subsystem. Wherein the spectral imaging subsystem and the gamma-ray imaging subsystem share a coding pore plate, the gamma-ray imaging subsystem further comprises a radiation detector, and the spectral imaging subsystem further comprises a first lens, a second lens, a dispersion prism, a third lens and a CCD detector; the first lens, the coding pore plate, the second lens, the dispersion prism and the third lens are sequentially arranged in the direction from a target to be detected to the radiation detector and the CCD detector. According to the invention, spectral imaging and radiation imaging can be carried out simultaneously, the complexity and cost of the system are reduced, and the working efficiency and safety are improved.

The application relates to an improved cage type light field imaging system and a debugging method, and belongs to the technical field of light field imaging. The system comprises a main lens for collecting light spots on an object plane and imaging light emitted by the light spots onto a microlens; the microlens is used for separating the light collected by the main lens into light beams in different directions and imaging the light beams onto a virtual image plane; a relay lens is used for twice imaging the light beams in different directions onto different pixels of a CCD detector of a camera; the relay lens comprises a first lens and a second lens, the focal lengths of the first lens and the second lens are both positive, the focal length of the first lens is smaller than that of the second lens, and the magnification of the relay lens is greater than 1:1. During the debugging process of the system, parallel light beams are arranged in front of the microlens, and the parallel light beams are vertically injected into the microlens to determine the position of the microlens. The system is not affected by the vignetting and distortion generated by the relay lens, and the debugging method improves the positioning accuracy of the microlens.

The application provides a dual-wavelength coaxial aiming system capable of automatic collimation, which is used for attitude adjustment and target positioning aiming of a picosecond terminal optical path cone target of inertial confinement fusion (ICF). The system comprises automatic collimation optical paths and aiming optical paths of different working wavelengths; the automatic collimation optical paths comprise a light source, a light splitting prism, a secondary mirror, a reflecting mirror and a CCD detector; the aiming optical paths are composed of a primary mirror, a secondary mirror, a lens group, a light splitting prism and a CCD detector group, and each optical element is coaxial; the system multiplexes the secondary mirror, and realizes automatic collimation and positioning aiming through different wavelength transmission and reflection respectively; the system adopts combination of flint and crown glasses to correct chromatic aberration of different wavelengths; the image planes of the dual-wavelength optical paths are located at the same position; and the system adopts a coaxial two-mirror structure, and is compact in structure and small in size.

The utility model discloses a paper tube outer diameter testing device which comprises a base, a supporting frame is arranged on the base, supporting plates are symmetrically arranged on the left side and the right side of the top of the supporting frame, CCD detectors are arranged on the supporting plates, and a lifting displacement mechanism is arranged in the middle of the supporting frame. The lifting displacement mechanism comprises a lifting plate capable of moving up and down, a first driving motor and a supporting table are installed on the front side of the lifting plate, the supporting table is located above the first driving motor, a three-jaw chuck is arranged above the supporting table, the axis of the three-jaw chuck is perpendicular to the horizontal plane, and the axis of the three-jaw chuck is perpendicular to the horizontal plane. The first driving motor is connected with the three-jaw chuck through the transmission assembly and is used for driving the three-jaw chuck to rotate. According to the device, semi-automatic high-precision measurement of the outer diameter of the paper tube is achieved, the labor intensity of workers is reduced, stable and accurate clamping is conducted through the three-jaw chuck, and the accuracy of a measurement result is ensured through multi-point measurement.

The utility model discloses a wafer detection device which comprises a workbench, a fixing mechanism and a detection mechanism, and one side of the workbench is provided with a mounting rack. The fixing mechanism comprises a fixing disc and a plurality of fixing rings, the fixing disc is arranged on the surface of the workbench, a plurality of fixing grooves distributed in a concentric circle mode are formed in the surface of the fixing disc, a plurality of fixing holes are evenly formed in the edges of the fixing grooves, the diameters of the fixing rings correspond to the fixing grooves in a one-to-one mode, and fixing blocks corresponding to the fixing holes are arranged at the bottoms of the fixing rings. The fixing blocks can be inserted into the fixing holes; the detection mechanism comprises a laser generator, a CCD detector, a coaxial light generator and a controller, the laser generator, the CCD detector and the coaxial light generator are sequentially arranged on the mounting frame, the controller is arranged adjacent to the mounting frame, and the laser generator, the CCD detector and the coaxial light generator are all located above the fixing disc and electrically connected to the controller. According to the technical scheme of the utility model, wafers of different sizes can be replaced and detected rapidly and conveniently, time and labor are saved, and the working efficiency is improved.

The present invention discloses a spectrometer detection device, which includes a laser, a sample stage, a CCD detector and a cooling and drying device; a first optical lens assembly is provided between the laser and the sample stage; a second optical lens assembly is provided between the sample stage and the CCD detector; the surface of the sample stage is provided with a noble metal nano-coating; a concave mirror is provided on one side of the sample stage. When using this device, the laser of the laser passes through the first optical lens assembly and irradiates onto the sample stage, causing the sample to be measured on the sample stage to generate optical signals including scattered light. This optical signal is transmitted to the CCD detector through the second optical lens assembly to realize the component detection and analysis of the sample to be measured. Among them, the noble metal nano-coating and the concave mirror improve the light intensity of the scattered light transmitted to the second optical lens assembly, and the cooling and drying device improves the signal-to-noise ratio of the CCD detector, thereby improving the detection accuracy and sensitivity of this spectrometer detection device for the sample to be measured.

The present invention discloses a free electron laser device and imaging method for ultrafast dynamic imaging, belonging to the field of free electron laser technology. The device includes an undulator, a four-color magnetic compressor, an electron beam collector, a transmission grating and an X-ray CCD detector arranged along the path of the electron beam. The undulator has different dimensionless magnetic field parameters K, and a four-color magnetic compressor is arranged between each adjacent undulator. The electron beam collector is used to collect the electron beam, and the transmission grating performs wave splitting diffraction on the four beams of X-rays after passing through the sample, and then forms four diffraction images on the X-ray CCD detector. The beneficial effects of the present invention are as follows: the energy of the monoenergetic electron beam and the undulator parameters can be set to obtain the required X-ray photon energy, and the pulse energy can be controlled by the number of undulator modules in combination with the OK mechanism, so as to realize an "ultrafast dynamic movie" with a time resolution of picoseconds to femtoseconds, so as to be used to study the ultrafast dynamic process inside the material.

The present invention belongs to the technical field of refrigerated spectrometers, and relates to a compact non-vacuum thermoelectric refrigeration device for the CCD of a spectrometer, comprising: a window heat conduction cover, a window glass plate, a CCD pressing plate, a cavity housing, a heat insulation layer, a CCD detector, a TEC thermoelectric refrigeration chip, and an air-cooled fin seat, which are sequentially arranged along the spectral incident direction. The window glass plate is arranged inside the cylinder of the cavity housing, the window glass plate blocks the spectral incident channel, and the window glass plate seals and isolates the inner side of the cavity housing cylinder facing the rear cylinder opening into an independent sealed cavity. The refrigerating surface of the TEC thermoelectric refrigeration chip is attached to the CCD detector; by setting the sealed space where the CCD detector cavity is located to be relatively small, and using a small-size TEC thermoelectric refrigeration unit in the small space to cool the sealed space and conduct the heat to the external air-cooled fin seat, the present invention ensures a low-temperature environment in the sealed space, and therefore the present invention can improve the measurement accuracy of the refrigerated spectrometer.

To provide a Raman microspectrometer that can achieve size and cost reduction through simplification of the structure of a spectroscope, and can constantly analyze a sample with high accuracy.SOLUTION: A Raman microspectrometer comprises: laser oscillators (excitation light sources) that emit excitation laser light (excitation light) of different wavelengths; a spectroscope 10 that uses a diffraction grating 12 or 13 to disperse Raman scattered light R1 or R2 radiated from a sample as a result of emission of the excitation laser light from the laser oscillator; and a CCD detector 20 that detects and subjects to photoelectric conversion the Raman scattered light R1 or R2 dispersed by the spectroscope 10. The spectroscope 10 comprises incident apertures 11a, 11b and multiple (two) optical systems I, II that guide the Raman scattered light R1 or R2 that makes incident from the incident apertures 11a, 11b to the diffraction grating 12 or 13. The mulitiple light beams dispersed by a diffraction grating 12 or 13 enter in tandem to a single image formation lens 14.SELECTED DRAWING: Figure 2

The present invention relates to the field of radiation imaging technology, and discloses a fast radiation imaging system and method integrating optical imaging and coded aperture technology. The system includes a spectral imaging subsystem and a gamma-ray imaging subsystem. Among them, the spectral imaging subsystem and the gamma-ray imaging subsystem share a coded aperture plate. The gamma-ray imaging subsystem further includes a radiation detector, and the spectral imaging subsystem further includes a first lens, a second lens, a dispersion prism, a third lens and a CCD detector. In the direction from the object to be measured towards the radiation detector and the CCD detector, the arrangement order is successively the first lens, the coded aperture plate, the second lens, the dispersion prism and the third lens. The present invention can perform spectral imaging and radiation imaging simultaneously, reduce the system complexity and cost, and improve the working efficiency and safety.

An ultraviolet photographic device for investigation relates to the field of cameras and comprises a device body, a lens, a liquid crystal display screen, a data interface and a power interface which are mounted on the surface of the device body, an ultraviolet photographic objective lens mounted in the lens, an exposure lamp and a switch button which are both mounted on the upper surface of the device body, and a power module mounted in the device body, the power supply module is respectively connected with the CCD detector, the liquid crystal display screen, the exposure lamp, the switch button, the data interface and the power supply interface, the power supply module is externally connected with a power supply through the power supply interface, and the power supply module is connected with the power supply through the switch button to supply power to the CCD detector, the liquid crystal display screen, the exposure lamp and the data interface; the CCD detector is connected with the liquid crystal display screen, and an image on the image surface of the CCD detector is displayed through the liquid crystal display screen; and the CCD detector is connected with the data interface. The utility model has the advantages of low cost, light weight, small size, high imaging quality and strong imaging stability.

The invention discloses a device and a method for testing defocused spots and color deviation of an optical lens, and solves the problems that the testing precision is low and the spectral range of a tested optical system is limited due to the dependence on human eye observation, and the existing testing device is complicated to install and debug and low in testing efficiency. The CCD detector is used as an imaging unit, imaging testing can be carried out on the optical lens to be tested in the whole spectrum range, the energy distribution characteristics of the defocused spots of the optical lens can be truly reflected, and the actual application requirement of an optical system is met. The target surface of the CCD detector is directly imaged, high-precision and high-efficiency measurement of the defocused spots and the color deviation can be realized in cooperation with image processing software and a corresponding algorithm in the controller, and the measurement precision can reach 0.3 mu m.

The invention provides a confocal imaging system and method based on surface scanning, and belongs to the technical field of confocal spectral imaging. Comprising a laser, a first laser beam expander, a second laser beam expander, a cylindrical lens, a dichroscope, an array optical fiber bundle, an imaging lens, a reflector, a microscope objective, a to-be-detected sample glass slide, an optical fiber collimating lens, a diffraction grating, an imaging concave reflector and an area array CCD detector. The left side of the array optical fiber bundle is connected with an area array arrangement end, and the right side of the array optical fiber bundle is provided with a linear array arrangement end; the collected Raman spectrum signal has high chemical specificity, different chemical substances can be distinguished, information such as contents of different molecules can be obtained, multi-parameter analysis can be carried out, a sample does not need to be pretreated, the structure and the property of the sample cannot be damaged, in-situ analysis can be carried out on the sample, and the detection accuracy is high. The method has the characteristics of non-destructiveness, high chemical specificity, high spatial resolution, multi-parameter analysis and the like, and is suitable for popularization.

The utility model discloses production auxiliary equipment based on COB integrated circuit board micro-expansion detection technology, which comprises a connecting base used for being connected to a conveyor belt, the connecting base is provided with a width-adjustable positioning structure and a length-adjustable positioning structure, the bottom of the connecting base is provided with a lifting mechanism, and the length-adjustable positioning structure is provided with a length-adjustable positioning structure. A circuit board supporting structure is arranged above the connecting base, the lifting mechanism is connected with the circuit board supporting structure, a CCD detector fixedly connected with the connecting base is arranged above the circuit board supporting structure, a circuit board which can be conveyed to the bottom of the CCD detector can be subjected to plane coordinate positioning, the accuracy of the CCD detector is improved, and meanwhile, the circuit board can be conveyed to the bottom of the CCD detector. The length and width of the positioning structure can be adjusted according to the length and width of the circuit board, the adaptability is higher, and the auxiliary detection is more comprehensive.

The present invention discloses a space-based small satellite payload excitation imaging method based on rotating-arm scanning, comprising the steps of: 1) building a reflective Fourier ptychography imaging system based on rotating scanning; 2) using a CCD detector to perform rotating scanning on the Fourier plane of the imaging system to obtain an N-frame sequence of low-resolution images; 3) preprocessing the acquired original low-resolution image sequence; 4) respectively using the registration methods of correlation function and speckle fractal dimension to register the preprocessed image sequence; 5) using the Fourier ptychography imaging algorithm to reconstruct the registered image sequence to obtain a restored image with improved resolution. The present invention expands the spectral range by performing rotating scanning of the CCD detector in the far field, and uses the Fourier ptychography reconstruction algorithm to quickly reconstruct the amplitude information and phase information of the far-field target object, obtaining a restored image with a resolution exceeding the diffraction limit of the system objective lens, effectively improving the imaging quality of the macroscopic reflective imaging system.

The invention discloses a testing device and a testing method for a powder fuel combustion transient spectrum, and relates to the technical field of powder fuel spectrum testing. The testing device comprises a shock tube system, a multi-channel oscilloscope, a spectrometer, an I CCD detector, a pressure sensor and a multi-channel digital delay pulse generator; an optical signal generated by powder fuel high-temperature self-ignition is transmitted to an I CCD detector, the time distribution of the measured optical signal and the time distribution of the I CCD detector meet a one-to-one corresponding optical system, and transient spectral information of powder fuel high-temperature self-ignition luminescence at different time is obtained. The device can realize nanosecond-level time resolution, is suitable for a rapidly changing combustion process, can obtain high-quality transient spectrum data by combining a high-resolution spectrometer and an I CCD detector, realizes measurement of a high-resolution transient spectrum of high-temperature self-ignition combustion of the powder fuel, and can be widely applied to transient spectrum measurement of the powder fuel.

The invention relates to the technical field of optical imaging control, in particular to a self-adaptive defocusing compensation device and method based on a laser spot, which utilizes a simple optical module and hardware circuit design, places a temperature sensor into an optical system, and calculates a defocusing amount through the joint calculation of temperature and a defocusing coefficient. The limitation that a traditional single defocusing detection method is easily influenced by noise by only utilizing geometrical optics is broken through, and a temperature variable is converted into a measurable feed-forward quantity from an interference factor by utilizing a global calibration method of temperature-defocusing coefficient and temperature-CCD detector defocusing displacement and a closed-loop adjustment method of coarse adjustment and fine adjustment in sequence; by combining the astigmatism method real-time defocusing detection technology, rapid defocusing compensation response can be achieved for defocusing amount generated by slowly changing temperature, meanwhile, the anti-interference capability and the control precision of the system are improved, and the imaging quality is guaranteed.

The present invention discloses an absolute radiometric calibration method for a color area array CCD camera based on a Bayer array. By using a highly stable LED light source combined with an integrating sphere to generate a stable and energy-adjustable uniform surface light source, and transferring the spectral radiance at the exit of the integrating sphere to the pixels of the area array CCD detector through a standard radiance meter, absolute radiation response calibration is achieved. In the present invention, by setting the magnitude of the LED light source current and setting the minimum value, typical value, and maximum value of the spectral radiance, an absolute radiation response calibration experiment of the color area array CCD camera is carried out under the condition of a single light source to determine the corresponding absolute radiation response coefficient, thereby eliminating the calibration uncertainty caused by detector response aliasing and effectively improving the accuracy of absolute radiometric calibration.

The invention relates to the field of ultraviolet pulse detection, in particular to a porcelain insulator contamination ultraviolet pulse detection device and a circuit thereof. The device receives incident light which comes from a high-voltage direct-current power transmission line and passes through a porcelain insulator, the incident light is separated into visible light and ultraviolet light through a light beam separator, the visible light is transmitted to a visible light camera module to obtain a visible light image, and the ultraviolet light is sequentially transmitted to a full-solar-blind ultraviolet imaging module and a CCD detector after passing through an optical filter to obtain a full-solar-blind ultraviolet image. The visible light image and the ultraviolet light image are subjected to multi-level and multi-scale fusion processing through an image fusion module, and an image for displaying the pollution degree, distribution and type of the porcelain insulator is obtained. According to the method, the optimized optical design and the intelligent recognition algorithm are utilized to effectively capture and recognize the dirt features, and meanwhile, the long-term stable operation is ensured by enhancing the stability and reliability of the system.

This application belongs to the field of aerospace technology and provides a CCD drive system that supports multi-degree-of-freedom image motion compensation functions. It includes an aircraft bus, a camera controller connected to the aircraft bus, and also includes a first gradient image motion timing generator, a first horizontal drive circuit, a first vertical drive circuit, a first area CCD detector, and a first detector front-end signal processing module; a second gradient image motion timing generator, a second horizontal drive circuit, a second vertical drive circuit, a second area CCD detector, and a second detector front-end signal processing module; a multi-degree-of-freedom image motion compensation image interface module, a multi-degree-of-freedom image motion compensation image registration module, a multi-degree-of-freedom image motion compensation image fusion module, a multi-degree-of-freedom image motion compensation image recorder, and a ground intelligence processing module. Without additional increasing the system complexity and components, this application realizes the multi-degree-of-freedom compensation function of an airborne camera and has the advantages of reducing the quality, volume, power consumption, and cost of the imaging system.