358 results about "Integrating sphere" patented technology

The invention discloses a device and a method for testing a MicroLED wafer array. The device comprises a wafer slide holder, a MicroLED test device and a photometric integrating sphere, a MicroLED wafer is arranged on the wafer slide holder; the MicroLED wafer is provided with a MicroLED wafer array, and the MicroLED wafer array is provided with a plurality of The MicroLED wafer array is composed of a plurality of MicroLEDs which are distributed in an array form; the MicroLED test equipment comprises a flexible electrode and a TFT (Thin Film Transistor) addressing circuit; the wafer slide holder is used for enabling a MicroLED wafer to be aligned with the MicroLED test equipment so as to enable the MicroLED to be lightened, and visible light emitted after the MicroLED is lightened is transmitted to the photometric integrating sphere through the MicroLED test equipment; the photometric integrating sphere is used for testing optical parameters of the MicroLED; the optical parameters comprise optical power and wavelength; and the TFT addressing circuit is used for providing current, voltage and position parameters of the MicroLED. According to the device and the method, the optical parameters and the position of each MicroLED in the MicroLED wafer array can be rapidly tested in a lossless and high-throughput manner.

The invention provides a flexible transparent display screen detection method, and belongs to the technical field of screen detection, and the method comprises the steps: carrying out a light transmittance dynamic attenuation test through optical detection equipment in a bending state of a to-be-detected flexible transparent display screen, and constructing a light transmittance attenuation image; stripping the to-be-tested flexible transparent display screen layer by layer by using a laser stripping technology, and quantifying the light transmission loss of each layer based on an integrating sphere system; point position analysis is carried out on the light transmittance attenuation image based on the light transmission loss, the abnormal attenuation point position is determined, the real use condition can be simulated to carry out layered detection on the flexible transparent display screen, and the detection accuracy is improved.

The invention relates to the technical field of illuminometer calibration, and discloses a calibration device and a calibration method of an illuminometer for measuring medium and low illuminance. The calibration device comprises an integrating sphere assembly, a light source control module, a reflecting plate adjusting module, a spectrum monitoring module and a calibration execution module. A plurality of fixing holes are formed in the integrating sphere assembly, the light source control module achieves stable light intensity output through a dynamic current distribution algorithm and PID closed-loop control, the reflecting plate adjusting module compensates edge light attenuation through a self-adaptive positioning algorithm, and the spectrum monitoring module evaluates spectrum stability through a spectrum matching algorithm. And the calibration execution module adopts a nonlinear error correction algorithm to improve the calibration precision. The calibration method comprises the steps of initializing the device, adjusting the height of the reflecting plate, collecting data to generate a calibration curve, correcting errors, testing at multiple angles and the like. According to the invention, the defects of the traditional calibration technology can be effectively overcome, and the calibration precision and reliability of the medium and low illumination illuminometer are improved.

A lidar system for simultaneously measuring the column concentration of methane and the profile concentration of water vapor in the atmosphere is disclosed. The device includes a laser emission module: a 1645nm monoline seed laser, a 1645nm offline1 seed laser, a 1645nm offline2 seed laser, a 1064nm pump laser, a laser frequency-locking module, an optical parametric oscillator, a frequency doubling module, and emitting optical components; an echo receiving module: an integrating sphere module, an optical receiving telescope assembly, a beam splitter, filter assembly 1, filter assembly 2, photodetector 1, and photodetector 2; and a data acquisition and processing module. This invention utilizes the frequency doubling relationship between the absorption lines of methane and water vapor to simplify the complex structure of a dual-band, multi-wavelength laser. It employs seed-injected optical parametric oscillator technology to obtain a high-frequency stable 1645nm fundamental frequency light, which is then frequency-doubled to obtain an 822nm laser. The profile concentration of water vapor and the column concentration of methane in the atmosphere can be measured using differential absorption lidar (DIAL) and integral path differential absorption (IPDA) technologies, respectively.

The present invention discloses a photoacoustic spectroscopy gas detection device and method based on a differential diffuse reflection integrating sphere. The modulated laser output by a distributed feedback semiconductor laser is incident into the first diffuse reflection sphere of a differential diffuse reflection spherical resonance photoacoustic cell after passing through a laser collimator. After the target gas to be measured absorbs the laser energy, it causes the differential diffuse reflection spherical resonance photoacoustic cell to vibrate, and photoacoustic signals are generated in the first diffuse reflection sphere and the second diffuse reflection sphere. A first microphone and a second microphone are used to respectively detect the two-way photoacoustic signals in the first diffuse reflection sphere and the second diffuse reflection sphere, and the two detected photoacoustic signals are transmitted to a differential amplifier for differential operation. A control and data acquisition system collects the photoacoustic signals after differential operation and processes them by a computer to invert the concentration of the target gas to be measured. The detection device of the present invention has the advantages of large signal intensity, strong noise suppression ability, high system sensitivity, optical path free of adjustment, and small volume.

The embodiment of the present application provides a kind of based on the method and system for detecting the quality of dairy product of spectral analysis, belong to optical detection technical field.The method comprises: the sample of the dairy product to be detected is introduced into thermostatic colorimetric cell, utilizes modulated light source to emit incident light, while collecting original spectrum signal in sample channel and reference channel;Based on original spectrum signal, generate correction spectrum, and input correction spectrum into integrating sphere to collect full direction transmission light, obtain total transmission spectrum;Based on the scattering distribution data of different angles obtained by arranging annular multi-angle detector array on the outer wall of thermostatic colorimetric cell;Based on scattering distribution data and total transmission spectrum, construct scattering compensation factor, and make scattering compensation factor act on total transmission spectrum to obtain effective absorption spectrum;Effective absorption spectrum is input into component decomposition model, and the content of each target component of the dairy product to be detected is output.The present application scheme realizes the rapid, nondestructive and high-precision detection of the content of key components of dairy product.

The invention discloses a film thickness measurement method and system based on a line scanning hyperspectral camera, and relates to the technical field of hyperspectral imaging, and the method comprises the steps: obtaining a reflection or transmission spectrum image and a dark noise image, and carrying out the denoising processing; using a hyperspectral camera and an integrating sphere to carry out radiation correction on the reflected or transmitted spectral image; acquiring a film reflectivity or transmissivity spectrum according to the transmission spectrum without the film or the standard specular reflection spectrum; and determining the number of global interference periods according to a reflectivity or transmissivity curve, and calculating by using a fast Fourier transform method or a spectrum fitting method to obtain the film thickness. Image data with space and spectrum information is acquired through a hyperspectral camera, high-precision film thickness measurement under global imaging and dynamic scanning is realized through an algorithm combining fast Fourier transform and spectrum fitting, and meanwhile, the film thickness measurement precision is improved by adopting dark noise correction and integrating sphere radiation correction. The quantitative accuracy of incident light and sample reflection or transmission light is ensured, and the detection efficiency is greatly improved.

The invention provides a device and a method for measuring the phase retardation of a micro-nano-sized wave plate, which are used for solving the problems that an existing method for measuring the phase retardation of the wave plate cannot characterize and measure the wave plate in the micro-nano size, optical detection equipment is expensive, an overall experimental measurement scheme is complicated to operate, the system universality is poor, and the measurement cost is high. And the instability of the measurement result of the measurement scheme for deducing the phase retardation of the wave plate based on the Mueller matrix is relatively high. Light emitted by the tunable light source is modulated by the integrating sphere to form unpolarized light, the unpolarized light is shaped into a planar light beam through the shaping reflection unit, and the planar light beam is normally incident to the first linear polarizer so as to emit completely linearly polarized light with different polarization angles; meanwhile, the second linear polarizer is arranged between the microscope objective and the sleeve lens, interference of factors such as light intensity jitter, system transmittance and wave plate rotation positioning precision on a measurement result is reduced by adjusting the deflection angle of the second linear polarizer, and the measurement precision is effectively guaranteed.

A calibration tool for a beam profiler is disclosed. The calibration tool includes an integrating sphere configured to receive laser light emitted from a laser and generate diffuse laser light. A sensor system is configured to output an expected intensity value of the diffuse laser light. An interface is configured to align a beam profiler with the integrating sphere to direct the diffuse laser light to be incident on an array of pixels of a beam sensor of the beam profiler. The array of pixels of the beam sensor is configured to output a plurality of native intensity values of the diffuse laser light. A computing system is configured to calibrate the beam profiler based at least on differences between the plurality of native intensity values of the diffuse laser light and the expected intensity value of the diffuse laser light.

The embodiment of the invention provides a dairy product quality detection method and system based on spectral analysis, and belongs to the technical field of optical detection. The method comprises the following steps: introducing a dairy product sample to be detected into a constant-temperature colorimetric pool, emitting incident light by utilizing a modulated light source, and simultaneously collecting original spectral signals in a sample channel and a reference channel; generating a correction spectrum based on the original spectrum signal, and inputting the correction spectrum into an integrating sphere to collect omni-directional transmission light to obtain a total transmission spectrum; scattering distribution data at different angles are obtained based on an annular multi-angle detector array arranged on the outer wall of the constant-temperature colorimetric pool; constructing a scattering compensation factor based on the scattering distribution data and the total transmission spectrum, and acting the scattering compensation factor on the total transmission spectrum to obtain an effective absorption spectrum; and inputting the effective absorption spectrum into a composition calculation model, and outputting the content of each target component of the dairy product to be detected. According to the scheme, rapid, lossless and high-precision detection of the key component content of the dairy product is realized.

The utility model relates to the technical field of integrating spheres, in particular to an adjustable optical integrating sphere which comprises an opening and closing assembly, front and back translation screw rod sliding tables are symmetrically mounted at the top of the opening and closing assembly, lifting assemblies are mounted at the tops of the front and back translation screw rod sliding tables, an integrating sphere is arranged between the two lifting assemblies, and a supporting assembly is mounted at the bottom of the opening and closing assembly. The lifting assembly comprises a lifting frame, a lifting lead screw is vertically installed on the inner side of the lifting frame, a lifting sliding block is installed on the lifting lead screw, the integrating sphere is composed of two hemispheres, and the two hemispheres are fixedly connected with the lifting sliding block on the outer side. According to the adjustable optical integrating sphere, through the design of the lifting assembly, the height of the integrating sphere can be flexibly adjusted according to actual requirements. The lifting motor drives the lifting lead screw to rotate and drives the lifting sliding block to move up and down. The design greatly improves the adaptability of the integrating sphere in different measurement scenes. The arrangement of the front-back translation lead screw sliding table enables the integrating sphere to move front and back in the horizontal direction.

The invention relates to the technical field of photovoltaic film detection, in particular to photovoltaic film performance detection equipment which comprises a spectrophotometer with an integrating sphere accessory, the integrating sphere accessory is mounted in a sample bin of the spectrophotometer, and a mounting mechanism and a wrinkle generator are further mounted in the sample bin. The wrinkle generator comprises a jacking head for applying local mechanical pressure to the photovoltaic film and an L-shaped jacking rod for applying non-uniform mechanical tension, the wrinkle generator further comprises a transmission part, and the jacking head and the L-shaped jacking rod alternately extend out in the front-back direction under the transmission action of the transmission part so that different wrinkles can be generated on the surface of the photovoltaic film; the light transmittance of the photovoltaic film with different inclination degrees and different wrinkle conditions is detected through the spectrophotometer with the integrating sphere accessory, the method is more suitable for the actual use state of the photovoltaic film, the detection result is more accurate, and more reliable basis is provided for performance evaluation of the photovoltaic film.

The invention discloses a laser, visible and infrared portable composite target simulator which comprises a composite light source, a target, a card type optical system and a comprehensive control system. The composite light source adopts an integrating sphere structure, the integrating sphere is provided with a visible light source, an infrared radiation source and a laser fiber interface, the integrating sphere is also provided with an outlet, and the outlet can output a composite light beam; the cassette optical system comprises a secondary mirror and a primary mirror, and the target is arranged on a focal plane of the cassette optical system; the secondary mirror, the primary mirror, the target and the integrating sphere are coaxially arranged in sequence, and the composite light beam is emitted from an outlet of the integrating sphere, passes through the target and finally enters the cassette optical system; the comprehensive control system is connected with the integrating sphere through the visible light source, the infrared radiation source and the laser fiber interface, and is used for controlling the parameters of the laser, the visible light and the infrared radiation source. The device has basic functions of a specific wave band target simulator, can perform function verification on composite detection equipment, and is small in size, capable of being carried by one hand and good in portability.

The utility model relates to a solar cell film thickness acquisition device which comprises a spectrum detection module, a light source module and at least one integrating sphere. Wherein each integrating sphere is respectively connected with the spectrum detection module and the light source module, and each integrating sphere is respectively arranged above different preset to-be-detected point positions of a to-be-detected battery. Therefore, the effect of collecting the scattered light beams by the integrating sphere is good, and more reflected light beams can be collected and dodging can be carried out by utilizing the integrating sphere to collect the reflected light beams, so that more reflected light beams can be transmitted to the spectrum detection module. And then the spectrum detection module is used for collecting the reflected light beam after dodging, so that the detection accuracy of the poly-s i film thickness of the solar cell can be improved.

The invention discloses a light source system capable of continuously adjusting an attenuation ratio, and belongs to the technical field of optical radiation measurement and photoelectric detection. In order to solve the problems of wavelength dependence, discontinuous adjustment, spectrum distortion and the like existing in an existing light intensity adjusting scheme, a combined structure of an integrating sphere and a diaphragm cylinder is adopted, and the device comprises a light source, the integrating sphere with the high-reflection inner wall, a front-end adjustable diaphragm, the diaphragm cylinder with the extinction inner wall and a rear-end adjustable diaphragm. Continuous attenuation of output light intensity in a predetermined dynamic range is realized by adjusting the apertures of the front and rear diaphragms, the lower limit of attenuation ratio meets the requirement, and the dynamic range can reach more than three orders of magnitude. The system uses the integrating sphere to form a stable Lambert light source, the attenuation process depends on geometric parameters, spectral distribution and spatial uniformity basically remain unchanged, and the non-uniformity of a light-emitting surface is not greater than 5%. The invention further provides a calibration method, high-precision attenuation prediction is achieved through detector measurement and view factor model fitting, and the calibration method is suitable for weak cursor calibration, detector linearity testing and other applications.

The application discloses a kind of physical defect detection devices and methods of spectacle optical lens. Including collimating light source, two-dimensional light point scanning system, power compensation optical system and integrating sphere arranged in sequence on light path, photovoltaic sensor on the reflecting surface of integrating sphere, data processing board connected with photovoltaic sensor, overflow port for light beam passing is opened on integrating sphere.The application solves the comprehensive detection technical problem of detecting the defects such as bubble, scratch and pitting of the lens with optical power, and establishes the industry standard accordingly.The application is simple in structure, low in cost and high in sensitivity, and the 100% detection rate makes the operator only need to recheck the lenses that are misdetected as defects due to removable dirt on the surface.Usually, these lenses that need to be rechecked are about 3%.Thus, the application greatly reduces the intensity of workers and improves the efficiency, and also avoids unnecessary waste.

The application provides a multi-channel imaging optical eccentricity correction method applied to a multi-channel camera, and the optical eccentricity correction method comprises the following steps: real-time shooting of the inside of an integrating sphere by the multi-channel camera; adjusting the position of each lens relative to the lens chip to make the brightness of the four corners of the video display page of the multi-channel camera consistent; simultaneously shooting an infinite faraway same point light source by N lenses of the multi-channel camera, so that the video display page of the multi-channel camera simultaneously displays N shooting pictures, and the point light source is displayed on each shooting picture; and taking the image plane position of the point light source in one of the shooting pictures as a reference, adjusting the image plane positions of the point light sources in other shooting pictures to be the same as the reference. The multi-channel imaging optical eccentricity correction method can reduce the relative eccentricity degree of the lens and the chip, improve the common field of view of the multi-channel camera, and improve the shooting efficiency.

This invention provides a high-precision, wide-dynamic-range, and highly uniform motorized diaphragm. This diaphragm controls the transmitted radiant flux between integrating spheres. It ensures high uniformity, dynamic adjustability over a wide range, and high repeatability. When fully closed, light leakage is maintained at a radiant brightness output level of one millionth of that in the fully open state. This invention meets the performance requirements of highly uniform low-light radiation sources.

The application discloses an online full-wavelength detection system for continuous vacuum coating, a transfer unit is used for conveying a coated sample to a next vacuum coating unit, the transfer unit can convey the coated sample to a specified position of a detection module, and light emitted by a light source module enters a light collecting mechanism after passing through the coated sample. The application can satisfy online full-wavelength detection of continuous coating, can detect optical performance changes after coating in real time, and then adjust optical coating parameters to achieve ideal optical coating effect. The method can greatly improve the yield of multilayer continuous coating. Meanwhile, the second window of the light collecting mechanism and the first window of the light source module are arranged to be inclined at a specified angle, so that reflected light on the upper surface and the lower surface of the coated sample can be effectively prevented from entering the integrating sphere, background interference is effectively reduced, sensitivity is improved, and the optical differences of the coated sample after coating of each layer can be effectively found, so that parameter guidance for the next layer of coating is provided.

The invention provides a CD-ROM integrated light-emitting device detection device and a detection method thereof.The CD-ROM integrated light-emitting device comprises a carrier plate, an LED chip, a driving chip and a plurality of pins, the detection device comprises a workbench, a visual mechanism, a probe mechanism and an integrating sphere, the workbench comprises a transparent bearing plate, and when the CD-ROM integrated light-emitting device is borne on the transparent bearing plate, the LED chip is driven by the probe mechanism to rotate; the LED chip is positioned on one side, close to the transparent bearing plate, of the carrier plate; the visual mechanism is arranged above the transparent bearing plate and is used for acquiring image information; the probe mechanism is used for electrically connecting a probe with a pin in the CD-ROM integrated light-emitting device according to the image information so as to carry out an electrical test on the CD-ROM integrated light-emitting device; the integrating sphere is arranged below the transparent bearing plate and used for receiving emergent light of the LED chip so as to carry out optical testing on the CD-ROM integrated light-emitting device, and the detection equipment and the detection method of the CD-ROM integrated light-emitting device have the advantage of being high in photoelectric testing efficiency.

The invention discloses a human face skin multi-component concentration analysis method and device based on hyperspectral imaging, and relates to the technical field of spectral imaging. The method comprises the following steps: under a standardized condition, sequentially collecting dark background data, standard integrating sphere uniform light field data and standard reflectivity plate reference spectrum data; collecting original face hyperspectral data under the same condition; correcting the original face data and the reference data based on the dark background data and the uniformity correction coefficient, and calculating the reflectivity data of the face skin in combination with the known reflectivity of the standard reflectivity board; establishing correlation between the reflectivity and a tissue absorption coefficient based on a skin optical model, wherein the absorption coefficient is expressed as linear superposition of various target component concentrations and standard spectral characteristics thereof; and solving the relationship by adopting a fitting optimization algorithm to obtain the pixel-level concentration of each component and generate a two-dimensional distribution diagram. By optimizing an acquisition device, a spectral analysis algorithm and a visualization function, high-precision, safe and easy-to-use detection effects are realized.

The application provides a material surface diffuse reflectivity measuring method and device, and belongs to the technical field of material reflectivity testing.The device comprises an integrating sphere, an integrating sphere inner wall coating backfill module, a measured material backfill module, a light trap and a luxmeter.The integrating sphere comprises a light inlet and another opening.Illumination light is incident from the light inlet of the integrating sphere.The light receiving areas of the integrating sphere inner wall coating backfill module, the measured material backfill module and the light trap are matched with the other opening.The luxmeter is arranged on the inner wall of the integrating sphere, and the position of the luxmeter is away from the positions of the light inlet and the other opening.The material surface diffuse reflectivity is measured by using the integrating sphere, the light trap and other tools through a direct measurement method, without the aid of a standard reflector plate which needs to be calibrated in advance for diffuse reflectivity.Meanwhile, parameters such as the diffuse reflectivity of the inner wall of the integrating sphere and the brightness value of the illumination light source do not need to be measured.

The invention discloses an arc light online monitoring device for an energy storage power distribution switch cabinet, and belongs to the technical field of arc fault monitoring. Comprising a monitoring unit and a collecting unit, a quartz window short horn mouth captures 2pi spherical degree arc light at a time, and a closed plastic optical fiber sends a pulse into an integrating sphere within 50 microseconds; a black body extinction cylinder-narrow band filter-integrating sphere multi-stage attenuation is carried out, strong light is weakened firstly, then an ultraviolet characteristic spectrum is extracted, flash of a background lamp and a camera is completely eliminated, arc light position offset still keeps stable output, and high signal-to-noise ratio identification is realized; a real arc is judged according to the ratio of pure arc light to total light, and interference is avoided; after confirmation, a level in direct proportion to energy is output immediately, a background acts according to a three-level strategy of prompting, tripping and quick breaking, no optical cable is exposed in the whole process, the whole process is not influenced by dust condensate water, a closed loop from arcing to protection decision is completed within 2 ms, and real-time, reliable and maintenance-free arc light online monitoring is provided for an energy storage power distribution switch cabinet.

The invention relates to beam analyzer authentication and calibration. A calibration tool for a beam analyzer is disclosed. The calibration tool includes an integrating sphere configured to receive laser light emitted from the laser and generate diffused laser light. The sensor system is configured to output an expected intensity value of the diffused laser light. The interface is configured to align the beam analyzer with the integrating sphere to direct the diffuse laser light to be incident on a pixel array of a beam sensor of the beam analyzer. A pixel array of the beam sensor is configured to output a plurality of intrinsic intensity values of the diffused laser light. The computing system is configured to calibrate the beam analyzer based at least on a difference between a plurality of intrinsic intensity values of the diffused laser and an expected intensity value of the diffused laser.

The present invention relates to a horizontal spectrocolorimeter, which comprises a housing and an optical structure assembly. A support boss seat is arranged at the rear side of the lower end of the housing, and a measurement port is arranged at the front side of the support boss seat. The optical structure assembly includes a reflecting mirror, a lens barrel, a spectrometer and an integrating sphere. A support base is arranged at the lower side of the support boss seat, and an adjustable support device is arranged on the support base. First, the spectrometer and the integrating sphere are arranged at a 90° angle by using the reflecting mirror, so as to compress the overall height of the machine, make the whole optical structure assembly in a horizontal state, make reasonable use of the internal space of the housing, make the overall shape of the machine more compact and facilitate the operation of the user. In addition, an adjustable support device with adjustable support height is arranged on the support base, so that the support height can be adjusted according to the thickness of different test objects, and when the whole machine is supported on the workbench, the measurement port is tightly attached to the surface of the test object, thereby improving the accuracy and effect of the detection and measurement.

The utility model discloses a transmission / reflection spectrum detection light path structure, which relates to the field of spectrum detection, and comprises an integrating sphere fixedly arranged on the left upper side in a shell; the object carrying cover is arranged on the top surface of the shell, and the object carrying cover is arranged right above the integrating sphere in a covering manner; the left side of the cuvette bracket is fixed at an outlet in the right side of the integrating sphere; the buckling cover is mounted on the top surface of the shell, and the buckling cover is positioned right above the cuvette bracket; the first heat dissipation cover is mounted on the right side of the cuvette bracket; the second heat dissipation cover is mounted at a left interface of the lower end of the integrating sphere; the spectrograph is fixedly mounted in the shell, and the spectrograph is connected with a right interface at the lower end of the integrating sphere through an optical fiber. According to the utility model, transmission and reflection spectrum detection can be simultaneously carried out, the reliability and stability of object detection can be effectively ensured, and the accuracy of a detection result is ensured.

A measuring device includes: an integrating sphere; an excitation optical system; a light detector; and a first detection optical system. The optical axis of the excitation light incident on the subject to be measured in the integrating sphere in the excitation optical system and the optical axis of the light to be measured that is emitted from the integrating sphere in the first detection optical system obliquely intersect with each other, the first detection optical system has an opening portion that limits a detection range of the light to be measured in the light detector, and an irradiation spot of the excitation light on the subject to be measured and the opening portion are in an optically conjugate relationship.

The application provides a kind of portable collection device of insulating paper near-infrared diffuse reflectance spectroscopy, belongs to the technical field of spectrum collection, including main casing, cylindrical surface accessory, built-in cavity handle and first optical fiber channel;One end of handle is communicated with the bottom of the rear end of main casing;Two ends of first optical fiber channel are communicated with the bottom of the front end of main casing and the other end of handle respectively;The front center of main casing is provided with main light outlet;There is integrating sphere and halogen lamp light source in main casing;One light outlet of integrating sphere is communicated with main light outlet, and the other light outlet is connected with external spectrometer through first optical fiber arranged along first optical fiber channel;Light inlet and halogen lamp light source are connected through collimating mirror and second optical fiber;Groove is opened in one end face of cylindrical surface accessory, and the other end is cylindrical face;Cylindrical surface accessory is provided with light channel communicated with main light outlet along axis direction.The light outlet of the collection device can be switched to cylindrical face, and perfect fit with the outer surface of insulating paper on site is realized.

The embodiment of the application provides a kind of based on integrating sphere light source's photosensitive diode multispectral calibration device and method, for by dark current measurement, photocurrent correction and wavelength response fitting, photosensitive diode array is carried out wide band multispectral calibration.The device of the application includes integrating sphere device, multi-band adjustable light source module, the photosensitive diode array to be calibrated and control and analysis unit;The inner wall of integrating sphere device is high reflectivity diffuse reflection material;Integrating sphere device further includes trap detector, and trap detector is used for real-time monitoring the reflection loss of the inner wall of integrating sphere device;Trap detector is connected with control and analysis unit communication;Multi-band adjustable light source module is accessed integrating sphere device;The photosensitive diode array to be calibrated is composed of multiple photosensitive diodes;Control and analysis unit and multi-band adjustable light source module, the photosensitive diode array to be calibrated establish communication connection.

A device for testing loss of laser in liquid is characterized by comprising a laser (1), a cavity (2) and an integrating sphere (3), the cavity (2) is made of a transparent material on a light path of a light beam emitted by the laser (1); the cavity (2) comprises an inlet (4) and an outlet (5); the inlet (4) is used for injecting liquid into the cavity (2), and the outlet (5) is used for enabling the liquid in the cavity (2) to flow out; and the integrating sphere (3) is positioned on a light path of a light beam emitted by the laser (1) so as to receive the light beam emitted by the laser (1) and detect the light power. According to the utility model, the convenience of measuring the laser loss of the liquid is greatly enhanced.