292 results about "Dark room" patented technology

The invention discloses a satellite loop simulation test system and method, electronic equipment and a program product. The satellite loop simulation test system comprises a darkroom system used for simulating an electromagnetic propagation environment between a satellite and a terminal; the turntable system is deployed in the darkroom system and is used for controlling the terminal to move in the darkroom system according to the input terminal movement track; the communication system is used for sending a downlink test signal to the terminal and receiving an uplink test signal fed back by the terminal according to the input channel simulation file, and the uplink test signal and the downlink test signal are used for determining a test result of the satellite loop simulation test; and the timing system is used for generating a unified time reference for the turntable system and the communication system, and the turntable system and the communication system operate based on the time reference. The technical problem of how to construct a darkroom test environment in a low-orbit broadband satellite high-speed motion scene so as to verify the end-to-end communication performance of a terminal under a real-time tracking satellite is solved.

The invention relates to the field of automobile electronic testing technology and equipment, and discloses a vehicle-mounted camera imaging quality testing method and device suitable for a rain and fog scene, and the method comprises the steps: installing a to-be-tested camera module in a rain and fog environment cabin, setting the spectrum and illumination of a top natural illumination simulation system, and simulating the illumination at different time periods; selecting a test target plate in the darkroom; starting an automatic centering module to align the optical axis with the standard plate reference; rain and fog parameters are set through the environment control host, the rain and fog supply system is started to simulate different levels of rain and fog environments, and the raindrop particle size, concentration, dripping speed, fog visibility and fogdrop particle size are dynamically regulated and controlled; shooting a target plate graph card, extracting characteristic parameters by an image analysis module, performing quantitative analysis, and generating an evaluation report, so as to solve the technical problem of singleness of rain and fog scene environment simulation in the prior art.

The utility model relates to a control device for a microwave anechoic chamber test system. Comprising a shielding box which is a sealed cavity provided with a cover plate, and the shielding box is provided with a power supply socket, a data socket and an optical fiber coupler; a control circuit board, an AC-DC power supply module, a data optical fiber transceiver and other modules are installed in the shielding box. A plurality of motor control units, a power supply interface and a communication interface are integrated on the control circuit board, and a first output end of the AC-DC power supply module is connected with the control board and is used for supplying power to the control board; one end of the data optical fiber transceiver is electrically connected with the optical fiber coupler, and the other end is electrically connected with the communication interface for converting the signal into an optical signal and outputting the optical signal. The control circuit board is placed in the shielding box, so that the size of the rotary table or antenna tower equipment is reduced, and the electromagnetic interference risk of a motor and a darkroom environment is reduced; the control circuit board integrates the servo motor control unit and the stepping motor control unit for modular design, serves as an independent unit of the darkroom test system, and is high in universality.

The invention belongs to the technical field of optical imaging and automatic detection, and particularly relates to a multispectral polarization imaging automatic scanning system. According to the system, through combination of multispectral polarization imaging and an AI algorithm, rapid positioning and classification of a target are realized, and the precision and efficiency of trace detection and material evidence identification are improved on the premise that a sample is not damaged. The multispectral polarization imaging automatic scanning system comprises a single-axis detachable slide rail, a polarization camera, a multispectral light source module, a small darkroom with an open bottom, a control panel and a main control computer. The two ends of the single-axis detachable sliding rail are supported by the adjustable tripod, the portable small darkroom is fixed below the movable end of the sliding rail through mechanical connection, the polarization camera and the multispectral light source are installed in the darkroom, and the darkroom is driven by the stepping motor to conduct single-axis scanning motion. The multispectral light source module supports switching of more than six wave bands within the wave band of 450-950 nm, wave band switching can be completed within 5 ms, and stable illumination intensity (0-500 lux) is provided. The process provided by the invention comprises the steps of equipment deployment, scanning path configuration, light source regulation and control, image acquisition, data analysis and the like, and a high-precision detection report can be quickly generated in various scenes. Through cooperative work of the control panel and the main control computer, the system realizes automatic image acquisition, target detection and report generation, is widely applied to the fields of trace detection, material evidence identification, industrial quality inspection and the like, and has the characteristics of automation, high efficiency and high precision.

The invention relates to the field of electromagnetic field technology and radio frequency signal testing, in particular to a radio frequency standard field generation system and method based on near-field beam forming, and the system comprises a control unit, a radio frequency signal generation unit, a radio frequency field control unit and a broadband radiation antenna array. The control unit carries a near-field electromagnetic wave synthesis mathematical model and is used for receiving a target field type setting requirement and calculating excitation amplitude and injection compensation phase required by each radiation unit configured in the broadband radiation antenna array; the radio frequency signal generation unit comprises a pulse modulation laser source and a plurality of semiconductor radiation units and is used for generating high-power programmable radio frequency signals; the radio frequency field control unit comprises an optical delay line and an FPGA matrix and is used for performing amplitude and phase regulation and control on the high-power programmable radio frequency signal output by the radio frequency signal generation unit; and the broadband radiation antenna array is used for receiving the regulated radio frequency signal and radiating the regulated radio frequency signal to the near-field space of the darkroom, and a target field pattern is formed through multi-unit electric field vector superposition.

The invention discloses an LED dead pixel detection method, device and equipment based on laser reflection and a medium, and relates to the technical field of LED lamp detection, and the method comprises the steps: controlling a laser light source to irradiate a to-be-detected LED lamp; collecting a reflected light signal; preprocessing the reflected light signal to obtain an input signal; and judging whether the LED lamp is normal based on the input signal. According to the invention, laser reflection detection is adopted to replace traditional optical imaging, the monochromaticity and directivity of laser are utilized to overcome ambient light interference, and a darkroom or complex filtering is not needed. Meanwhile, the combination of the laser light source and the photoelectric sensor significantly reduces the cost of the system, and avoids the use of a high-resolution camera. The laser can focus a micron-sized light spot, and the sub-pixel-level micro structure abnormity can be identified with high precision by analyzing the energy change of a reflected light signal. More importantly, according to the method, non-luminous defects such as packaging cracks and colloid stripping can be synchronously detected by capturing the reflection characteristics of the physical structure of the LED instead of depending on the luminous state of the LED, so that the defect detection accuracy is effectively improved.

The invention discloses an isolator for establishing a bone nonunion animal model and a preparation method of the isolator, and relates to the technical field of medical instruments, and the preparation method comprises the following steps: step 1, obtaining a hydrogen-containing silicone oil prepolymer with a side chain containing Si-H bonds; 2, obtaining a silica gel macromonomer with an epoxy group on a side chain; step 3, obtaining an anti-inflammatory functionalized silica gel macromonomer; 4, reconstructing the skeleton model in a three-dimensional manner, and creating a defect isolator model; 5, adding the anti-inflammatory functionalized silica gel macromonomer obtained in the step 3 and a reactive diluent into a mixing tank, adding a cross-linking agent and polyether modified polydimethylsiloxane under mechanical stirring, stirring for 30 minutes, defoaming for 2 hours under 500Pa vacuum, and standing and curing in a darkroom after defoaming; and 6, a multi-material-box DLP photocuring 3D printer is adopted for isolator printing. According to the method, observation interference on the bone nonunion pathological process is fundamentally reduced, and high-fidelity modeling construction is achieved.

The invention provides a photoelectric solar irradiance meter self-calibration device for outdoor monitoring and a calibration method, and belongs to the technical field of photovoltaic monitoring. The device comprises a sky imager, a solar irradiance meter for monitoring, a standard solar irradiance meter, a sealed darkroom, a three-dimensional adjusting bracket and a waterproof sealed box, wherein a dual-channel temperature collector, a dual-channel voltage collector and a control, data processing and storage module are integrated in the waterproof sealed box. The sealed darkroom normally protects the standard irradiance meter to prevent the standard irradiance meter from aging and dust deposition; the dual-channel collector synchronously collects temperature and voltage of a standard solar irradiance meter for monitoring, and supports a calibration algorithm to realize dynamic updating of sensitivity; the three-dimensional adjusting bracket ensures that the device is parallel to the mounting plane of the photovoltaic module, and the angle response matching degree is improved; the sky imager judges the calibration weather condition to guarantee the effectiveness of the calibration environment; the control module realizes automation of a self-calibration process, adapts to an outdoor long-term monitoring scene, and realizes continuous and accurate measurement of photovoltaic solar irradiance.

The utility model relates to a limiting device used for adjusting the angle of a shielding door of a darkroom shielding room, and belongs to the technical field of shielding door angle limiting. The limiting device comprises a guide rod, a limiting block, a door leaf fixing piece, a door frame fixing piece and a pin shaft, the door leaf fixing piece is installed at the top of a door leaf, and the door frame fixing piece is installed on a door frame; one end of the guide rod is rotationally connected to the door frame fixing piece through a pin shaft, a penetrating groove is vertically formed in the middle of the guide rod in the length direction in a penetrating mode, the door leaf fixing piece is movably arranged in the penetrating groove, the limiting block is adjustably fixed in the guide rod, the door leaf fixing piece is arranged between the limiting block and the door frame fixing piece, and the door leaf fixing piece can abut against the limiting block. The door opening device is simple in structure and convenient to use, and a user can adjust the maximum door opening angle of the door at any time according to own needs; when the door reaches the limit position, the limit position of the door is well controlled due to the existence of the limiting device, and the door leaf is prevented from being damaged by touching other things.

The application discloses a kind of photovoltaic module dark current testing device, it is related to dark current detection device technical field, the detection device includes workbench, workbench is placed with cabinet, multiple drawers are slidably installed on cabinet, multiple current detection modules are evenly installed in drawer, workbench is installed with host computer, host computer is electrically connected with current detection module, temperature and humidity control assembly is provided on the cabinet, temperature and humidity control assembly adjusts the temperature and humidity inside cabinet, when drawer is completely pushed into cabinet, darkroom for accommodating photovoltaic module is formed, meet the lightless environment requirement of photovoltaic module dark current test, improve detection precision, host computer as the overall control unit of device forms the closed-loop control of "instruction issue-data acquisition-result feedback", display screen connected with host computer real-time display test state, real-time parameter and test result, replace artificial reading judgment, reduce error.

The application relates to the field of artificial network control, in particular to an artificial network control method, device and system for shielding across a darkroom. By using a fiber link and an internal battery power supply architecture in a fully-closed shielding darkroom, the interference of personnel on a test environment is completely eliminated, monitoring of parameters such as internal temperature and voltage of the integrated darkroom is added, zero-crossing synchronization noiseless operation of phase switching is realized, in addition, user end environment adaptive identification, driving parameter dynamic calibration and equipment life prediction are realized, and the needs of high-precision, unattended automatic phase switching and testing are met.

The utility model discloses an LED lamp detection device which comprises a detection table, the top of the detection table is fixedly connected with a detection box, the top of the detection box is covered with a fixing cover, the top of the fixing cover is connected with a brightness meter in a penetrating mode, the bottom of the fixing cover is fixedly connected with a hanging bracket, the hanging bracket is fixedly connected with an LED installation base, and the LED installation base is fixedly connected with a light source. The beneficial effects of the utility model are that the LED lamp to be detected is firstly installed on the LED installation seat, then the lifting mechanism drives the fixed cover to close the detection box, the LED lamp on the LED installation seat extends into the detection box to carry out darkroom detection, then the LED installation seat is controlled to be electrified, and the LED lamp can be conveniently and rapidly detected. During illumination, the brightness meter can detect the brightness, the heat dissipation mechanism can dissipate heat generated by the LED lamp in the detection process, the structure is reasonable, the brightness of the darkroom can be conveniently detected, and operation is convenient.

The invention discloses a synthetic aperture radiometer darkroom phase calibration method and device. The method comprises the following steps: installing a synthetic aperture radiometer and a point target emission source in a microwave anechoic chamber; in the first-stage test, unit antenna output ports are connected with equal-length test cables and connected to a microwave test instrument, a synthetic aperture radiometer is set to be in an antenna observation mode, and a point target observation unit antenna phase difference test is carried out; in the second-stage test, the output end of the unit antenna is connected with each receiving channel of the synthetic aperture radiometer, the synthetic aperture radiometer is set to be in an antenna observation mode, and a point target observation full-system phase difference test is carried out; in the third stage of testing, the synthetic aperture radiometer is set to be in a common noise injection calibration mode, and common noise injection calibration is carried out; and calculating and counteracting a near field effect phase difference, a unit antenna phase difference and a receiver channel phase difference to obtain an accurate noise distribution network phase difference parameter. Darkroom phase calibration is achieved under the near-field condition, the result is accurate, and the method is simple, convenient and practical.

The utility model discloses an on-line intelligent fluorescent magnetic trace distinguishing mechanism, which relates to the technical field of fluorescent magnetic powder detection and comprises a darkroom, a first conveying rack, a first blanking rack, a second blanking rack and a second conveying rack. The first conveying rack transversely penetrates through one side of the darkroom and extends into the darkroom, a first conveying belt is installed at the top of the first conveying rack, and the first discharging rack and the second discharging rack are arranged on the front side and the rear side of the first conveying belt correspondingly; the top height of the first discharging rack and the top height of the second discharging rack are matched with the top height of the first conveying belt, and the second conveying belt is arranged on one side of the back face of the first discharging rack. According to the utility model, a magnetized workpiece containing magnetic traces can be quickly and conveniently subjected to magnetic trace detection treatment with higher detection accuracy and higher safety, so that the detection work is time-saving and labor-saving, higher in efficiency and higher in safety.

The invention provides a hiding device for a test darkroom and the test darkroom. The top of the test darkroom is provided with a hiding parking area. The hiding device comprises a lifting mechanism, a turnover mechanism and a control system, and the lifting mechanism and the turnover mechanism can jointly form a closed wave-absorbing shielding surface through the control system so as to shield interference sources such as travelling vehicles in the hidden parking area. Driving or similar electromagnetic test interference sources can be effectively shielded and shielded, and the influence of the structure on the electromagnetic environment of the test darkroom is reduced.

A system performs a method of verifying an anechoic chamber. A plurality of electromagnetic waves propagate from an emitter located within the anechoic chamber. Each electromagnetic wave of the plurality of electromagnetic waves is associated with one of a plurality of configurations between the transmitter and a receiver in the anechoic chamber. A plurality of reflections from a reflective element in the anechoic chamber are received at the receiver. Each of the plurality of reflections corresponds to one of a plurality of configurations. For each of the plurality of reflections, an ellipse indicative of a range of reflective elements is determined. The intersection of each ellipse is positioned to determine the position of the reflective element in the anechoic chamber. The reflectance of the reflective element is compared to a threshold to validate the anechoic chamber.

This application relates to the field of display technology, specifically to a screen brightness adjustment method, apparatus, display device, and storage medium. The screen brightness adjustment method, applied to a display device, includes: acquiring first reflective brightness data of the display device in its current environment; determining the current environment type of the display device based on the first reflective brightness data; when the current environment type is a darkroom environment, adjusting the initial backlight brightness data corresponding to the current display screen on the display device according to a first brightness weighting coefficient; when the current environment type is a non-darkroom environment, adjusting the initial backlight brightness data corresponding to the current display screen on the display device according to a second brightness weighting coefficient to obtain target backlight brightness data, so that the display device adjusts the currently displayed screen brightness based on the target backlight brightness data, thereby considering the reflective brightness of the environment when adjusting the screen brightness.

The application relates to a navigation terminal comprehensive performance test evaluation method based on a microwave darkroom, and belongs to the technical field of satellite navigation. The application simulates the use conditions and various scenes possibly encountered by a navigation terminal in actual use for testing by constructing a navigation terminal comprehensive performance test platform based on a microwave darkroom and constructing a navigation terminal comprehensive performance test scene, and performs comprehensive performance evaluation according to positioning / short message communication information reported by the navigation terminal. The application simulates the scenes possibly encountered by the tested terminal in actual application through a comprehensive test scene formed by multiple application scenes, the test result is closer to the actual application, and the application has good actual application value.

The invention relates to an AI training multi-modal imaging-oriented glass defect data set acquisition device and method, and aims to solve the problems of inconsistent imaging quality, complex device structure and incapability of automatically constructing a high-quality multi-modal data set in the existing glass defect acquisition technology. The device comprises a darkroom structure, and a light source regulation and control module, a polarization regulation and control module, a spectrum regulation and control module, a diffuse scattering regulation and control module, a rotary loading platform and an imaging module which are integrated in the darkroom structure, and each module is controlled by a control unit in a coordinated manner; according to the method, a multi-dimensional parameter combination matrix is established, parameters are called in sequence to collect images and bind metadata, and a structured data set is output after image registration and fusion. According to the method, ambient light interference is inhibited through modular electric control design, the consistency and definition of defect images are improved, differentiated display of multiple types of glass defects is realized, a high-quality multi-modal data set with optical parameter labels is automatically constructed, and reliable data support is provided for AI defect detection model training.

The utility model relates to the technical field of darkroom gate control, and particularly discloses a darkroom gate control structure, which comprises a fixed plate, an overhead rail is fixedly mounted on the outer surface of the fixed plate, the fixed plate is fixedly mounted on the outer surface of a wall body, and an intelligent control networking panel is fixedly mounted on the outer surface of the wall body on one side of the fixed plate. According to the darkroom gate control structure, when a user needs to enter a darkroom, the user only needs to input a password through the intelligent control networking panel or recognize the face to control and start the servo driving motor, and the intelligent control networking panel records the information of the person entering the darkroom and uploads the information to the system; and the servo driving motor can drive the screw rod to rotate, so that the sliding block connected with the screw rod can move on the outer surface of the hanger rail to drive the door plate to automatically move, a user does not need to manually open the door plate when entering the darkroom, and identity information of the entering person can be recorded.

This invention belongs to the field of water environment monitoring technology, specifically relating to an in-situ spectral measurement device and method for shallow lakes. The measurement device includes a housing and a water-passing grid module. A vertical rangefinder, an adjustable mounting bracket, a fixed mounting bracket, and a communication module are mounted on the top of the housing. The adjustable and fixed mounting brackets are used to mount the light source and the spectrometer, respectively. A water inlet is vertically opened in the middle of the side wall of the housing. The water-passing grid module includes a light-blocking baffle and a traction ring. The light-blocking baffle is slidably mounted on the side wall of the housing and is correspondingly positioned to the water inlet. The traction ring is installed on top of the light-blocking baffle and is used to move the light-blocking baffle up and down along the water inlet as it floats with the water level. A signal trigger is located on the side wall of the housing near the top of the water inlet. This invention achieves fully automatic spectral measurement and combines the in-situ characteristics of field acquisition with the illumination stability of darkroom acquisition.

The invention provides an automatic test system and method for the dynamic scene projection quality of an intelligent vehicle lamp, and relates to the technical field of vehicle lamp projection detection. Comprising a test bench and a control device, and the test bench is provided with an intelligent vehicle lamp module and an image acquisition module and is arranged in a darkroom environment; control software and scene recharging software are integrated in the control device; through scene selection, camera position self-adaption, automatic focusing, projection triggering, sampling, data processing and quality verification, the problems of low precision, poor efficiency and narrow fixed camera application range of a traditional human eye test are solved, the automatic and precise test of the multi-dynamic scene projection quality of the intelligent vehicle lamp is realized, the method can be used for long-term stability test, and the blank in the field is filled.

The utility model discloses a camera obscura for receiver testing. The camera obscura comprises a box body; a transmitting antenna, wherein the transmitting antenna is arranged in the box body; and the mounting seat is arranged in the box body in a sliding manner and is arranged to be used for mounting a test product. According to the camera obscura for testing the receiver, the transmitting antenna and the mounting base are integrated in the box body, and compared with a darkroom, the camera obscura which is independently designed does not need to be reserved in use and does not have a complicated process, so that the receiving and transmitting signal testing efficiency of the receiver can be improved; the camera obscura is small in overall size and convenient to move, portable design is achieved, a certain number of camera obscura can be customized according to requirements, receiver testing is facilitated, and using is more flexible; when the camera obscura is used for testing, only the cost for manufacturing the camera obscura and the tool cost for fixing different receivers need to be paid, so that the cost is greatly reduced.

The application relates to a simple test method based on MIMO-OTA, and belongs to the technical field of wireless communication. The test method shields the air interface influence of OTA, and for multi-base station test, multi-terminal test or pull-out test, only the multi-base station or multi-terminal needs to be placed in an actual darkroom, then a corresponding topological structure is established according to actual test needs by using control software of a simulation instrument, a channel impulse response is generated in channel modeling software, and channel coefficients are loaded into a channel simulation instrument, so that OTA test can be realized, and the influence of the darkroom air interface on the test system does not need to be considered.

The invention discloses a signal sending method and device. According to the method, information of a preset single-time sending duration and information of a preset sending time interval are obtained in response to a signal sending request, and the single-time sending duration and the sending time interval are both in positive correlation with a first distance between a sending device and a target object; according to the information of the single sending duration and the information of the sending time interval, determining the information of a single sending time period and the information of a sequence number corresponding to each single sending time period; in a preset corresponding relation between a sequence number and a sub-waveform signal, obtaining a target sub-waveform signal corresponding to the target sequence number, the target sequence number being a sequence number corresponding to the target single sending time period; and sending the target sub-waveform signal in the target single sending time period. According to the embodiment of the invention, the method can solve a self-interference problem when a wide pulse radar signal is used for measurement in a small darkroom environment, and guarantees the accuracy of a measurement result.

The application provides an AVM calibration method, comprising the following steps: determining at least one original calibration pattern in which corner point detection fails in a plurality of original calibration patterns laid around a vehicle and an original calibration pattern arrangement in which the at least one original calibration pattern is located; acquiring a redundant calibration pattern arrangement arranged at intervals with the original calibration pattern arrangement; performing a corner point detection algorithm on the original calibration pattern arrangement and the redundant calibration pattern arrangement to obtain corner points of a calibration pattern arrangement in which corner point detection succeeds in the original calibration pattern arrangement and the redundant calibration pattern arrangement, so as to calibrate AVM by using the corner points. The application also discloses a vehicle-mounted device and a storage medium. The application realizes the following advantages: without repeatedly adjusting light, without a special material calibration pattern and without constructing a darkroom and arranging controllable light sources, the operation process of AVM calibration is simple.

The utility model provides darkroom imaging equipment, which comprises a box body and an imaging module, the box body is provided with a darkroom space, the imaging module is arranged in the box body and is used for imaging a blotting membrane in the darkroom space, the box body is provided with an upper cover, a base and a cover closing detection device, and the upper cover can be opened and closed relative to the base. And the cover closing detection device is arranged on at least one of the base and the upper cover and is used for detecting whether the upper cover is closed or not. Whether the upper cover is closed or not is detected through the cover closing detection device, and the possibility that the upper cover is not closed tightly can be reduced.

This invention relates to a high-speed optical system designed for the S35 sensor, specifically an optical system for a 40mm / f0.85 high-speed lens for S35 (24.6x13.8mm) sensor camera. Currently, it represents the largest aperture lens in mass production on the market. The lens structure comprises 10 optical glass elements, including a first lens group, an aperture stop, a second lens group, and a third lens group arranged along the optical axis from the object side to the image side. The first and second lens groups are fixed lens groups, while the third lens group is a movable lens group that can move along the optical axis. This invention, targeting a large aperture optical system of 40mm f / 0.85, achieves mass production while ensuring low distortion and maintaining high resolution at full aperture. It can be used for image capture and video surveillance in extremely low-light environments and can be widely applied in darkroom biochemical reaction observation, solar panels, simulated space darkrooms, and special-requirement night vision devices.

The invention relates to the technical field of unmanned aerial vehicle performance testing and electromagnetic compatibility, and discloses a method and system for evaluating GNSS anti-deception jamming performance of an unmanned aerial vehicle in a darkroom, and the method comprises the steps: adjusting the support rod diameter of a hoisting system, adjusting bearing parameters, and fixing the unmanned aerial vehicle in a central region of the darkroom according to the model of the tested unmanned aerial vehicle; the method comprises the following steps: starting system self-inspection, after ensuring that each module works normally, starting a first GNSS signal simulator to emit a real navigation signal, controlling the unmanned aerial vehicle to lift off and stably hover, and recording initial positioning precision P0 and flight attitude parameters including a pitch angle theta 0, a roll angle phi 0 and a yaw angle psi 0; synchronously starting a magnetic field interference source and a second GNSS signal simulator, and applying mixed interference according to a set time sequence; coupling noise is eliminated by using a mixed interference data processing algorithm; and judging whether the anti-deception jamming performance of the unmanned aerial vehicle reaches the standard or not according to a quantitative evaluation standard corresponding to the model, and recording an anti-interference critical value, thereby realizing accurate evaluation of the anti-deception jamming performance of the unmanned aerial vehicles of different models in an environment close to an actual complex environment.

The invention discloses contact type imaging equipment, which comprises a shell, a CMOS (Complementary Metal Oxide Semiconductor) chip detector and an optical fiber panel, a darkroom space is arranged in the shell; the CMOS chip detector is located in the shell, the CMOS chip detector comprises a pixel array, the pixel array comprises a plurality of pixels distributed in an array mode, and the pixel array is used for converting optical signals into images of detected samples; the optical fiber panel is attached to the top surface of the CMOS chip detector, and a detected sample is arranged on the optical fiber panel. The optical fiber panel is arranged on the CMOS chip detector, so that the imaging effect is not affected while the detector is protected.