184 results about "Optical spectrum analyzer" patented technology

The invention discloses a VOCs emission dynamic prediction and energy-saving control system for catalytic combustion equipment in a casting workshop and a medium, the system comprises a high-frequency VOCs concentration monitoring unit which adopts TDLAS and FTIR spectrum analyzers and obtains high-precision concentration data through a data fusion algorithm, and a secondary differential signal of the TDLAS analyzer is independently extracted as a key feature; the data preprocessing and feature engineering module is used for processing multi-source data; the dynamic emission prediction module is internally provided with an attention mechanism time sequence convolutional network ATCN model, and realizes the ultra-early prediction of the emission concentration by fusing the secondary differential signal and historical data; the multi-objective optimization control module adopts a model predictive control MPC framework, the lowest comprehensive operation cost is taken as an objective, a dynamic virtual carbon penalty coefficient beta can be dynamically adjusted according to a workshop production plan, an advanced control instruction is generated through rolling optimization, and the equipment power and the fan frequency are adjusted; according to the method, ultra-early prediction, prospective control, energy conservation and consumption reduction of VOCs treatment are realized.

The invention discloses an automatic medicament preparation and dosage control system based on an artificial intelligence technology and a method thereof, relates to the technical field of industrial medicament preparation, and solves the problems that although the flow of medicaments can be controlled to a certain extent in the prior art, most medicaments lack intelligent prediction capability and cannot effectively process complex nonlinear working conditions. Comprising a sensor module, an intelligent controller and an actuator module, the sensor module comprises a spectrum analyzer and a weighing module and is used for monitoring components and weight of a medicament in real time, the intelligent controller processes data of the sensor module and predicts medicament dispensing parameters, the actuator module executes medicament metering, water adding and stirring operations, the sensor module monitors a medicament dispensing result in real time and feeds back the medicament dispensing result, and the intelligent controller corrects errors. Through an integrated high-precision sensor, an advanced intelligent control algorithm and a highly-automatic execution mechanism, comprehensive automatic, precise and intelligent management of the medicament preparation process is realized.

The invention relates to the technical field of spacecraft structure micro stress detection, in particular to a spacecraft structure micro stress detection device and a use method thereof, and the spacecraft structure micro stress detection device comprises a displacement amplification structure, a single mode fiber, a reflector, a broadband light source and a spectrum analyzer. An optical resonant cavity formed by an optical fiber end face and a lens is combined with a displacement amplification structure, when stress acts on a spacecraft structure, the cavity length of the Fabry-Perot resonant cavity changes, so that phase movement of light is caused, and accurate measurement of the stress can be achieved by detecting the phase movement. The antenna has extremely high anti-electromagnetic interference capability, and can work stably in a complex space environment. Even under the condition of violent temperature change, high measurement accuracy can be kept, and detection of tiny stress can be achieved through the amplification effect of the displacement amplification structure. And the stress characteristic signal and the background noise can be effectively separated, so that the detection reliability is remarkably improved.

The present invention relates to the technical field of optical fiber sensing. Disclosed are a multi-core grating sensor and a manufacturing method therefor, and a permafrost monitoring method. The multi-core grating sensor comprises a multi-core optical fiber grating, a strain gauge structure, and a demodulator, and the multi-core optical fiber grating comprises four uniformly and symmetrically distributed single-mode optical fibers, a cladding layer wrapping the four single-mode optical fibers, and a coating layer located between the single-mode optical fibers and the cladding layer; the strain gauge structure is attached to the outside of the multi-core optical fiber grating by means of glue bonding; and the demodulator is used for monitoring the dynamic change of the wavelength of the multi-core optical fiber grating, the demodulator comprises a broadband light source and a spectrum analyzer, an incident end of the multi-core optical fiber grating is connected to the broadband light source by means of the single-mode optical fibers, and an exit end thereof is connected to the spectrum analyzer by means of the single-mode optical fibers. Also disclosed in the present invention is a permafrost monitoring method. By means of comprehensive analysis and demodulation of fiber core wavelength variation amounts of a plurality of single-mode optical fibers on a single multi-core optical fiber grating, simultaneous measurement of multiple parameters is achieved, and the permafrost monitoring accuracy is improved.

The invention relates to a boiler operation parameter optimization method and system for multi-fuel combustion of multiple solid wastes, and the method comprises the following steps: (1) multi-source data collection: obtaining the heat value, the water content, the chlorine-sulfur ratio and the heavy metal content of the solid wastes in real time through a spectrum analyzer, a visual recognition system and an online sensor; (2) intelligent compatibility optimization: calculating a solid waste mixing ratio by adopting a genetic algorithm based on calorific value balance and pollutant inhibition targets, and controlling a Cl / S molar ratio to be 1.2-1.8 and the alkali metal content to be 1t; 50%; (3) pretreatment and drying: the water content gt; and carrying out microwave-steam combined drying on 25% of solid waste, and dynamically adjusting microwave power, steam injection time and the like. The method has the advantages that through the technical integration of multi-source data fusion, intelligent algorithm optimization and digital twinborn verification, a solid waste co-combustion full-process optimization system is constructed, and ultralow emission of pollutants and safe and economical operation are achieved while the energy utilization rate is increased.

The invention relates to the technical field of electroplating process intelligent monitoring, in particular to an electroplating process intelligent monitoring and executing system which comprises an electroplating bath. The sensing unit for monitoring is arranged in the electroplating bath, the sensing unit for monitoring comprises a probe group, an infrared thermal imaging module, a current density detector and a spectrum analyzer, and the probe group comprises a PH value detection probe, an ORP detection probe and a conductivity detection probe. The sensing unit for monitoring is used for collecting the PH value, ORP, conductivity, temperature field distribution, current density and metal ion concentration of the electroplating bath in real time; the calculation unit is in communication connection with the sensing unit for monitoring, and the calculation unit receives a signal of the sensing unit for monitoring and generates a control instruction; and the intelligent feedback unit is in communication connection with the calculation unit, and the intelligent feedback unit receives a signal of the calculation unit and executes the control instruction.

The invention discloses a temperature and hydrogen concentration dual-parameter synchronous detection system and method, and the system comprises an ASE broadband light source, the output of the ASE broadband light source is divided into two paths through a coupler, one path enters a first circulator, the other path enters a second circulator, the output of the first circulator enters a first FBG sensor, the output of the second circulator enters a second FBG sensor, and the output of the first FBG sensor enters a second FBG sensor. The two FBG sensors are arranged in the gas chamber, the first FBG sensor and the second FBG sensor are provided with FBG topological optical fiber structures with different working wavelengths and have temperature sensitivity and gas selective response, and reflected signals of the two FBG sensors are coupled to one path through the dual-channel wavelength division multiplexer and are sent to the spectrum analyzer for wavelength demodulation. The temperature sensitivity and the gas selective response are integrated in the same sensing unit by utilizing the wavelength coding characteristic of the fiber bragg grating, so that precise decoupling and real-time output of double parameters are realized, and the detection efficiency and the data consistency are improved.

The invention discloses an intelligent bone fracture plate integrated with an optical fiber Fabry-Perot sensor and a healing monitoring method. The system comprises an intelligent bone fracture plate module, an in-vitro detection module and a data analysis module. The intelligent bone fracture plate module mainly comprises a bone fracture plate body, a diaphragm type optical fiber Fabry-Perot sensor packaged in a U-shaped groove in the bone fracture plate, and a subcutaneous coupling capsule connected through a leading-out optical fiber. The sensor converts mechanical strain of the bone fracture plate into optical signal change of the Fabry-Perot cavity. The in-vitro detection module is in wireless optical coupling with the subcutaneous coupling capsule through an external read-write equipment head of the in-vitro detection module, probe light is emitted, interference light signals are received and reflected, and the strain of the bone fracture plate is calculated through a spectrum analyzer / detector. And the data analysis module converts the strain data into a key load sharing ratio. By monitoring the trend that the ratio gradually decreases from the postoperation along with time and comparing the trend with a preset clinical threshold value, objective, quantitative, dynamic and non-invasive monitoring of the fracture healing process is achieved.

The invention discloses a micro double-arm vector sensor and a preparation method thereof, and belongs to the technical field of optical fiber sensing. According to the technical scheme, the micro double-arm vector sensor comprises a broadband light source, a first single-mode optical fiber, a second single-mode optical fiber, a first coupling point, an interference arm with a core shift structure, a sensing arm, a second coupling point, a third single-mode optical fiber, a fourth single-mode optical fiber and a spectrum analyzer. The Mach-Zehnder interferometer has the advantages that a micro-double-arm Mach-Zehnder interferometer is formed on the basis of a core shift structure, an asymmetric structure is formed, light transmitted in the asymmetric structure is more sensitive to changes of the bending size and direction, and the vector bending sensitivity is high. Meanwhile, an online Mach-Zehnder interferometer needs to introduce a special optical fiber with high price in order to monitor the vector bending, and the structure only needs a single-mode optical fiber with low price, and is more suitable for batch production.

1. The name of the design product: spectrum analyzer (Korui Mini). 2. The use of the design product: qualitative and quantitative analysis of material elements. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

This invention discloses a method and system for measuring the frequency response of an electro-optic modulator based on a spectral analyzer. The system includes a laser, a 95:5 single-mode fiber splitter, an optical power meter, an electro-optic modulator, a control power supply, an RF signal generator, and a spectral analyzer. The measurement method includes the following steps: calculating a calibration factor to correct optical power drift through optical path splitting, driving the modulator by applying several discrete single-frequency RF points, and measuring the carrier power P0(f) using the spectral analyzer. i ) and the first-order sideband power P1(f i ), and determined by the power ratio R(f) i )=10 (P1‑P0) / 10 Combining the Jacobi–Anger expansion / Bessel function relation, the phase modulation index β(f) is solved by inverse solution. i Then, the phase transfer function H(f) at each frequency point is calculated and fitted. i The continuous frequency response S of the modulator is obtained. 21 This invention simplifies the testing process, reduces reliance on high-speed photodetectors and vector network analyzers, and enables high-precision electro-optic response testing of electro-optic modulators at high frequencies.

The invention relates to the technical field of spectrum analyzers, and discloses a rotary adjustment type spectrum analyzer which comprises a spectrum analyzer body. The fixed cover is arranged, the driving gear rotating in the fixed cover is meshed with the half gear, the angle of the display screen connected with the fixed cover can be accurately adjusted, and different observation requirements are met; a guide roller in the rotation center of the half gear is attached to an ejector rod on the back face of the display screen, when a pressing rod in the center of a driving gear is pushed, a push rod can be driven to enable a friction plate to be separated from a fixing base, the half gear is unlocked, the guide roller can be driven by a synchronous plate to move synchronously, and the display screen is guided to retract inwards through a slope on the guide roller. The risk that the display screen, the fixing cover and other components are scratched in the later angle adjusting process is fundamentally reduced; and after adjustment is completed, the friction plate is attached to the fixing base again, the position of the half gear can be stably positioned, it is ensured that the display screen is kept at the adjusted angle, and adjustment convenience, the protection effect and positioning stability are all considered.

The invention discloses a high-precision spectrum analysis and detection device for bioengineering inspection, and belongs to the technical field of bioengineering inspection, the high-precision spectrum analysis and detection device comprises a high-precision spectrum analyzer main body, and the front side of the high-precision spectrum analyzer main body is provided with an inspection cavity; according to the technical scheme, through the arrangement of the electric push rod, the base plate, the motor, the rotating seat, the top plate and other structures, multiple groups of sample detection boxes can be directly arranged around the top plate in bioengineering inspection, then a worker can adjust the distance between a sample and an infrared light source through the electric push rod, and then the motor is controlled to drive the detection boxes on the top plate to rotate; in the rotating process of the detection box, spectrum detection analysis can be sequentially carried out on biological samples in the detection box passing through the infrared light source, the samples do not need to be repeatedly replaced by personnel, the detection work of multiple groups of samples can be completed at a time, the working efficiency is improved, and the operation is simplified; and the detection accuracy is effectively prevented from being influenced by long-term external environment of the sample.

The application discloses a kind of based on functional echo wall mode optical microbottle cavity Full light tuning controllable optical comb generation method. Including 1550nm narrow line width continuous wave laser, single-mode optical fiber, erbium-doped fiber amplifier, polarization controller, optical isolator, functional microbottle cavity-fiber taper coupling system, optical attenuator, optical spectrum analyzer and 1550nm power adjustable laser. The unique axial characteristics of echo wall mode microbottle cavity are used, the free spectral range of microcavity is reduced, the axial mode microcavity optical frequency comb with small free spectral range is generated, and based on full light tuning method, functional microbottle cavity is prepared, and the axial mode microcavity optical frequency comb generated is tuned by photo-thermal material titanium dioxide, and significant spectral range tuning is realized. The application solves the limitation that WGM microcavity optical frequency comb cannot be effectively tuned due to large free spectral range, and helps the practical application in the field of microcavity optical frequency comb optical communication, optical frequency synthesis and the like.

An optical signal amplifier using a praseodymium doped fiber is described. The optical signal amplifier includes a signal laser, a first optical isolator, a second optical isolator a pump laser, a wave division multiplexer, a silica based glass optical fiber, a second optical isolator, an optical power meter, and an optical spectrum analyzer (OSA). The signal laser generates a signal laser beam. The pump laser generates a pumped laser beam. The wave division multiplexer combines the signal laser beam and the pumped laser beam and generates a combined laser beam. The silica based glass optical fiber has a preferred concentration of praseodymium ions of about 50×1024 ions / m3 and a length of about 5.7 m. The silica based glass optical fiber receives the combined laser beam, amplifies photons in the combined laser beam, and generates an amplified laser beam.

The present disclosure concerns a portable spectrometer analyzer, comprising: a housing; a vial receptable provided in the housing and being configured to receive a vial containing a sample fluid; a light source mounted within the housing and positioned to emit light into the vial to contact the sample fluid and produce sample-affected light; a spectrometer sensor mounted within the housing and positioned to receive or capture the sample-affected light and generate sensor data; and a processor mounted within the housing and configured to: receive the sensor data from the spectrometer sensor; perform an evaluation of the sensor data with respect to a predetermined analysis model. Methods of calibrating a portable spectrometric analyzer, of obtaining spectrometric and colorimetric measurements and of manufacturing a portable spectrometer analyzer are also concerned.

The invention discloses a dam gate opening and closing state intelligent monitoring and fault self-diagnosis method. The method comprises the following steps: S1, data acquisition; s2, vibration data analysis; s3, drawing a frequency amplitude gene sequence diagram; s4, evaluating the opening and closing state of the gate; s5, performing fault diagnosis; the vibration data and the pressure data of the dam gate are collected through the spectrum analyzer and the pressure sensor, fusion analysis of multi-sensor data is achieved, the vibration data and the pressure data are combined in follow-up processing, the opening and closing state of the dam gate is analyzed, and the accuracy of analysis is improved. Based on a mechanical fatigue strength-pressure coupling model, dynamic response analysis and fault diagnosis of the dam gate are realized; vibration data and pressure data of the dam gate can be collected in real time, comprehensive analysis is carried out through a mathematical modeling technology, the health state of a mechanical system is evaluated, then fault early warning and diagnosis are achieved, and a scientific basis is provided for safe operation of the dam gate.

The present application relates to the field of spectral analysis instrument, specifically relates to a kind of DMD-MCP ultraviolet imaging system and distortion correction method.The distortion correction method is generated by lattice mask, collects MCP distortion image, extracts feature points, and is fused nonlinear polynomial modeling and neural network model to carry out joint correction, realizes two-stage processing from rough correction to fine correction.The present application fills the blank of DMD-MCP ultraviolet imaging system space mapping and geometric distortion correction, significantly improves spectral quantitative precision, adapts high-end spectrometer, can be extended to X-ray, electron imaging and other scenes, and engineering value is high.

The invention relates to the technical field of oil spectrum analysis, in particular to an oil spectrum analysis method and an oil spectrum analyzer thereof. The method comprises the following steps: acquiring spectral signals for detecting different lubricating oil samples for multiple times in a preset time period; according to the wavelength difference and the peak width corresponding to the peak value between the adjacent characteristic peaks of the corresponding spectral signal in each detection, screening overlapped peaks; according to peak value change characteristics of characteristic peaks in overlapping peaks of the spectral signals corresponding to two adjacent times of detection in each sub-time period, additive element characteristic peaks are determined; obtaining the abnormal change degree of the characteristic peak of each additive element and screening abnormal peaks by combining the difference condition of the change abnormal factors of the characteristic peaks of the same additive element in the adjacent sub-time periods in the preset time period; and integrating the abnormal change degree of the characteristic peak of each additive element and the number ratio of the abnormal peaks, determining the enhancement coefficient of each additive element, and generating a spectral analysis result. The accuracy of the oil spectrum analysis result is improved.

The utility model discloses exhaust gas detection equipment which is characterized in that one end of a sampling pipe is connected with an exhaust pipe to collect gas exhausted by a flue, and standard gas is introduced into the sampling pipe for primary dilution; gas in the sampling pipe is introduced into the pretreatment high-temperature box for heating, and nitrogen is introduced for secondary dilution before heating; meanwhile, nitrogen is introduced into the pretreatment high-temperature box for three-stage dilution, the gas subjected to three-stage dilution is detected through an infrared spectrum analyzer, and the detected gas is conveyed into the flue again through a discharge pipe; and comprehensive gas is introduced into the discharge pipe for leakage-proof detection. The standard gas is used for carrying out primary dilution on the sampling gas, then the nitrogen is used for further carrying out secondary dilution and tertiary dilution on the sampling gas in two paths, the dilution ratio of the nitrogen is the product number of the secondary dilution and the tertiary dilution, and compared with traditional standard gas primary dilution and nitrogen secondary dilution, the nitrogen consumption is less, and the detection cost can be greatly reduced.

The application belongs to the technical field of optical fiber preparation automation, and specifically discloses a femtosecond laser-based optical fiber grating automatic processing and sorting system and method. The system comprises a sorting unit, a processing unit and a detection unit. The sorting unit comprises a feeder for automatically feeding optical fibers during processing, a winding machine connected with the feeder through an optical fiber and used for packaging and winding the finished optical fibers, and an industrial robot used for sorting the packaged finished optical fibers. The processing unit is arranged between the feeder and the winding machine and is used for processing optical fiber gratings. The detection unit comprises a test light source, an optical circulator, an optical spectrum analyzer and a loss module. The optical circulator is connected with the test light source, the optical spectrum analyzer and the optical fiber on the feeder. The loss module is arranged between the processing unit and the winding machine and blocks the propagation of test laser emitted by the test light source in the optical fiber through a bent optical fiber. The control unit is in communication connection with the processing unit, the sorting unit and the detection unit and is used for realizing optical fiber grating automatic processing and sorting.

The present application relates to the technical field of optical communication transmission, and discloses a path planning method based on an optical communication network, comprising the following steps: step one: connecting the optical communication network and an optical spectrum analyzer through a network, acquiring management data of a topology structure and signal monitoring data of all links, and classifying and forming a structure data set and a transmission data set, and real-time sensing a network state; step two: real-time analyzing link transmission bottlenecks of different topology structures, generating corresponding link bottleneck indexes, and efficiently positioning the link bottlenecks; step three: real-time analyzing the aggregable space of spectrum resources of the optical communication network, generating corresponding elasticity indexes, and directly reflecting the continuity and size of the available space of the spectrum resources; step four: setting bottleneck threshold values and elasticity threshold values with fixed numerical values, combining the link bottleneck indexes and the elasticity indexes, distinguishing transient shocks and persistent overloads, outputting corresponding path planning methods, and intelligently integrating high link utilization.

The application discloses a kind of laser cleaning machine intelligent rust removal method, device, equipment and system, it is related to laser rust removal field, method includes: by controlling camera to the surface of target metal piece photographing obtains metal surface image, rust area is identified and rust rough grade is determined to image analysis;Utilize sensor to collect the environmental parameter of target metal piece application scene, calculate out environmental influence index total;Spectrometer is detected simultaneously to rust area by control, and spectrum detection data is obtained, rust type is determined and chemical composition complexity index is obtained by analysis;Chemical composition complexity index, rust rough grade, rust type and environmental influence index are weighted and summed to calculate out comprehensive rust degree index by synthesis;According to comprehensive rust degree index, the laser cleaning parameter of laser cleaning machine is determined, and laser cleaning machine is controlled to the rust area of target metal piece and carries out laser rust removal.The application can effectively improve the rust removal effect of metal rust.

The invention relates to the technical field of hyperspectral remote sensing spectral analysis, in particular to a full-spectrum splicing high-resolution imaging system and method for a hyperspectral analyzer, and the method comprises the steps: determining a slit switching sequence through an acquisition module; the dynamic collimation module feeds back an aberration result; the adaptive dispersion module carries out wavelength calibration; the high-precision imaging module predicts imaging mirror parameters; the real-time compensation module adopts a Kalman filtering algorithm to predict the defocus compensation amount and executes nanoscale displacement compensation through a piezoelectric ceramic driver; the intelligent splicing module adopts an SIFT feature matching algorithm, a generative adversarial network and a reinforcement learning algorithm to realize image registration and fusion; the cooperative control module generates control signals through Monte Carlo simulation and a Bayesian optimization algorithm to coordinate all the modules. According to the invention, the problems of insufficient spectral resolution, difficulty in data splicing and low real-time measurement efficiency caused by fixed hardware parameters in a wide-spectrum spectral imaging system are solved, and full-spectrum high-resolution imaging is realized.

The invention relates to the technical field of optical communication transmission, and discloses an optical communication network-based path planning method, which comprises the following steps of: 1, connecting an optical communication network and an optical spectrum analyzer through a network, acquiring management data of a topological structure and signal monitoring data of all links, and classifying to form a structure data set and a transmission data set, sensing the network state in real time; 2, link transmission bottlenecks of different topological structures are analyzed in real time, corresponding link bottleneck indexes are generated, and the link bottlenecks are efficiently positioned; 3, analyzing an aggregable space of the spectrum resources of the optical communication network in real time, generating a corresponding elasticity index, and directly reflecting the continuity and size of the available space of the spectrum resources; 4, a bottleneck threshold value and an elastic threshold value with fixed numerical values are set, transient impact and continuous overload are distinguished in combination with a link bottleneck index and an elastic index, a corresponding path planning method is output, and the intelligent integration link utilization rate is high.

The invention discloses a bionic flexible touch sensor based on optical fiber interference and a preparation method thereof. The sensor comprises a Mach-Zehnder interference type optical fiber sensor formed by dislocation welding of single-mode optical fibers, and a bionic flexible packaging structure used for bearing the optical fiber sensor. The bionic flexible packaging structure adopts bionic octopus sucker array structures which are symmetrically arranged up and down to form a sandwich type flexible structure, the optical fiber interference sensor is arranged in the middle layer of the bionic flexible packaging structure, and supporting optical fibers are arranged on the two sides of the bionic flexible packaging structure to provide mechanical supporting and limiting effects; when external tactile force acts on the bionic octopus suction cup array, the bionic flexible packaging structure deforms synergistically, the deformation is effectively transmitted to a medium area around the optical fiber through the porous structure, the effective refractive index of the medium is changed, and therefore the phase difference of the optical fiber Mach-Zehnder interference structure is modulated, and the optical fiber is obtained. The interference light intensity change is shown in the spectrum analyzer, and optical detection of weak touch force is realized. According to the invention, the structure is simple, the flexibility is high, the anti-electromagnetic interference capability is strong, the preparation process is based on a conventional forming method, the feasibility of array and batch preparation is realized, and the application prospect in the fields of flexible touch sensing and fine force detection is good.

The application discloses a kind of induction logging instrument systems and acquisition method based on plasma optical fiber sensor, including ground current emission source and at least one well in current emission source and well in receiving acquisition device, the well in receiving acquisition device is connected with the optical system of induction signal detection being arranged on ground, the optical system is composed of sequentially connected broadband light source, polarizer, polarization controller, fiber optic circulator and spectrum analyzer, the fiber optic circulator is connected with well in receiving acquisition device and spectrum analyzer respectively, at least two plasma resonance optical fiber sensing probes are arranged in the well in receiving acquisition device. There is no mutual interference or crosstalk between plasma resonance optical fiber sensor, optical fiber sensor and emission power supply and antenna, and it is not easy to be disturbed by environmental electromagnetic noise, and multi-channel large data high-speed real-time transmission can be realized by using armored photoelectric composite cable connected with each well in receiving acquisition device.

The embodiment of the application discloses a kind of calibration method and system of coherent optical module, equipment, storage medium, in calibration method, first by target reference light source to target coherent optical module emit first optical signal, after target coherent optical module receives the first optical signal, the optical signal-to-noise ratio of the first optical signal is measured, and its measurement result is sent to the processor of calibration system, so that the processor obtains the calibration parameter of target coherent optical module according to the difference between the first measured optical signal-to-noise ratio of target coherent optical module and the pre-stored reference optical signal-to-noise ratio.Due to the calibration process does not need to use spectrum analyzer, so as to avoid the problem of low calibration efficiency caused by the low data processing efficiency of spectrum analyzer, realize the technical effect of improving the calibration efficiency of coherent optical module.

The utility model discloses an efficient cleaning device for a lubricating oil spectrum analyzer rectangular tube, which comprises a cleaning box, a mounting box arranged on one side outside the cleaning box and a cleaning cylinder arranged inside the cleaning box, a cavity is arranged inside the cleaning box, and a movable cover plate is arranged on one side, far away from the mounting box, of the cleaning box. A mounting plate is arranged at the upper end of the inner side of the cleaning box, a plurality of cleaning nozzles and drying nozzles are arranged on the lower surface of the mounting plate, one side of the outer portion of the cleaning cylinder is connected with the inner wall of the cleaning box through a telescopic rod, and the other side of the outer portion of the cleaning cylinder is fixedly connected with the movable cover plate; a fixing mechanism is mounted in the cleaning cylinder, a communicating pipe is mounted at the bottom of the cleaning cylinder, and an electromagnetic valve is mounted on the communicating pipe; a control box, a water pump and an air pump are arranged in the mounting box, and the rectangular pipe cleaning device has the advantages that the cleaning effect is effectively improved, and the working efficiency of rectangular pipe cleaning is greatly improved.

A spectrometer device comprises at least a first light source (10) emitting light in a first illumination wavelength range and at least a first spectral analyzer (26, 26a) adapted to analyze light in a first analyzer wavelength range. A dichroic first illumination mirror (16, 16a) is provided to reflect light in the illumination wavelength range from the first light source (10) towards a target (12). A dichroic first analyzer mirror (18, 18a) reflects light in the analyzer wavelength range that returns from the target towards the spectral analyzer (26, 26a). The first illumination mirror (16, 16a) is transmissive for light in the first analyzer wavelength range and the first analyzer mirror (18, 18a) is transmissive for light in the first illumination wavelength range. The first illumination mirror (16, 16a) intersects the first analyzer mirror (18, 18a).