92results about How to "Realize synchronous detection" patented technology

The invention relates to a cascade gating activated CRISPR / Cas12a system which is used for synchronous detection of miRNA155 and FEN1, the system comprises recognition assembly and enzyme digestion of two DNA hairpins, and Cas12a is activated by an enzyme digestion product to generate a fluorescence signal. The DNA hairpin 1 comprises a recognition part of miRNA155, a hidden foothold of the DNA hairpin 2 and a part of Cas12a activation chain, and the DNA hairpin 2 comprises a part combined with the hidden foothold of the DNA hairpin 1 and a part of Cas12a activation chain. In the application, two DNA hairpins are combined and assembled under the catalysis of miRNA155 to be called as an FEN1 enzyme cutting substrate, a CRISPR / Cas12a system can be activated in a cascade gating manner, and signals are generated only when the two targets exist, so that the specificity synchronous detection of the two targets is completed.

The invention discloses a multi-defect synchronous detection device for copper product processing and a use method thereof, and belongs to the technical field of copper product detection.The multi-defect synchronous detection device comprises a mounting base and a defect detection system applied to the detection device, a positioning groove is formed in the upper surface of the mounting base, and a copper pipe is placed in the positioning groove; according to the device, firstly, a pair of detection mechanisms are installed below an I-shaped pipe and an L-shaped pipe correspondingly, so that synchronous detection of the inner wall and the outer wall of the copper pipe is achieved, the problem that the inner wall and the outer wall are detected and separated in a traditional detection method is solved, and the detection efficiency and accuracy are greatly improved; the detection system can emphatically identify and evaluate the risk of the position again, the problem of product quality misjudgment caused by dependence on a single detection standard is prevented, potential safety risks existing in products are eliminated in time, the product quality level is improved, meanwhile, the use safety of the products is enhanced, and the detection system has wide application prospects and market value.

The invention discloses a millimeter-wave radar respiration and heart rate synchronous monitoring method based on sparse space-time constraint, which comprises the following steps: acquiring an echo pulse signal of a millimeter-wave radar, obtaining a respiration signal and a heart rate signal, and obtaining a sampling echo signal matrix; decomposing the signal matrix into a low-rank matrix and a sparse matrix, introducing a total variation regularization item, and establishing a joint optimization objective function; and performing iterative optimization on the target function to obtain a low-rank matrix, a respiratory signal sparse matrix and a heart rate signal sparse matrix, thereby realizing synchronous monitoring of respiration and heart rate. Synchronous detection of the apnea event and the heart rate abnormity event is realized. And the definition of total variation regularization is introduced in the establishment of the optimization model, so that the decoupling and reconstruction accuracy of the apnea and heart rate abnormality events is improved. In the process of optimizing a solution algorithm, a feature selection process is added, input data are pre-corrected, low-correlation features are screened out, and the robustness of judgment of the apnea and heart rate anomaly events is improved.

The invention relates to the technical field of molecular biological detection, and particularly discloses a quadruple fluorescent PCR primer probe combination, a reaction system and a detection method for identifying a mycoplasma gallisepticum wild strain and a vaccine strain. The quadruple fluorescent PCR primer probe combination for identifying the mycoplasma gallisepticum wild strain and the vaccine strain comprises a universal primer probe group for detecting mycoplasma gallisepticum and a specific primer probe group specially aiming at three vaccine strains F-36, TS-11 and 6 / 85 respectively. According to the quadruple fluorescent PCR primer probe combination, the reaction system and the method for identifying the mycoplasma gallisepticum wild strain and the vaccine strain, the purpose of simultaneously detecting and distinguishing DNA of the mycoplasma gallisepticum wild strain and DNA of three different vaccine strains (F-36, TS-11 and 6 / 85) of the mycoplasma gallisepticum wild strain can be achieved, so that detection and differential diagnosis are more efficient, economical, simple and convenient; the kit has the advantages of high sensitivity, good specificity, rapidness, high flux, simplicity and convenience in operation and the like.

The invention discloses a Fourier photoacoustic gas detection device and method, and belongs to the technical field of gas detection. In order to solve the problems that the anti-interference capability of an existing Fourier transform photoacoustic spectrum on a sound signal is limited and the detection sensitivity is low, the Fourier photoacoustic gas detection device is designed, and a super-continuum spectrum broadband light source is used as an excitation light source of a photoacoustic effect; uniform intensity modulation of wide-spectrum light is achieved through the intensity modulation assembly, and phase modulation is achieved through the interferometer assembly. The broadband interference light emitted through double modulation acts with gas molecules to generate wide-spectrum mixed sound waves, and the quartz tuning fork sound measurement assembly extracts resonance components in the wide-spectrum mixed sound waves and converts the resonance components into electrical signals; the generated electrical signal is processed by the signal amplification assembly, the phase-sensitive demodulation assembly and the Fourier transform assembly in sequence, and component discrimination and concentration inversion of the target gas are realized by the processed signal.

The invention relates to the technical field of optical detection instruments, in particular to a wafer edge multi-surface synchronous optical detection lens system and method, and the system comprises an optical lens which is internally provided with a second reflector; an image acquisition unit; the second lens cone is connected to the optical lens along the emergent light path direction of the second reflector, a main imaging lens group is arranged in the second lens cone and is used for converging and imaging the light received from the second reflector, and the light is acquired by the image acquisition unit; the two reflecting mirror groups are symmetrically arranged on the optical lens and are configured to guide light rays from the upper surface and the lower surface of the wafer to the second reflecting mirror respectively; and the central view field imaging unit is arranged on the optical lens. The wafer edge multi-surface synchronous optical detection lens system solves the problems that in the prior art, due to the fact that a plurality of lenses are used for detecting the upper surface, the lower surface and the side face of a wafer, cost is high, and an optical path is difficult to calibrate.

The invention discloses an optical fiber geometric parameter testing device and method, and belongs to the technical field of optical fiber manufacturing. According to the testing device, a certain angle is formed between the irradiation direction of the illumination unit and the emergent end face of the to-be-tested optical fiber, and the illumination unit illuminates the emergent end face, so that the emergent end face is clearly imaged in the image acquisition unit; the parameter resolving unit is used for judging the boundary of the core layer and the cladding layer according to whether the difference between the gray values of the adjacent pixel points in the end face image is larger than a preset gray threshold value or not, and therefore optical fiber geometric parameters are deduced. According to the testing device, the imaging effect of the optical fiber end face image is enhanced by improving the illumination unit for illuminating the optical fiber emergent end face, and then the algorithm for testing the optical fiber geometric parameters is improved for the end face imaging effect. Therefore, the geometrical parameters of the optical fiber can be obtained without arranging an incident light source at the incident end of the to-be-measured optical fiber, and compared with the prior art, a series of components such as the incident light source and an incident collimating lens are reduced, so that the complexity of the device is reduced.

The invention discloses a tyramine signal amplification system based on a rare earth fluorescent material and application of the tyramine signal amplification system in immunodetection. Firstly, the preparation method of the tyrosine functionalized rare earth fluorescent nanoparticles is provided, and the prepared tyrosine functionalized rare earth fluorescent nanoparticles can realize a tyramine signal amplification system without combination of a biotin-avidin system, so that the biotin-avidin combination step of traditional tyramine signal amplification can be simplified; and meanwhile, the detection cost is also reduced. The invention further provides a method for hypersensitive digital fluorescence immunodetection based on tyramine signal amplification, synchronous detection of multiple targets can be realized, fluorescence images of the multiple targets can be synchronously acquired under the same excitation light source, and tedious operation of frequent optical filter switching in multiple digital immunodetection is avoided. Furthermore, the rare earth fluorescent material doped based on different lanthanide ions can be subjected to digital detection through time resolution.

The invention relates to the field of surface shape detection, in particular to a low-intermediate frequency error synchronous detection method based on sub-aperture splicing and CGH compensation, and the method comprises the steps: designing a full-aperture CGH compensator, carrying out the full-aperture detection of a to-be-detected surface of an aspheric cylindrical surface element according to the full-aperture CGH compensator, and obtaining a full-aperture detection result; sub-aperture planning is carried out according to the surface shape of the to-be-detected surface of the aspheric cylindrical surface element, a sub-aperture CGH compensator corresponding to each sub-aperture is designed, sub-aperture splicing detection is carried out on the to-be-detected surface of the aspheric cylindrical surface element according to each sub-aperture CGH compensator, and a splicing detection result is obtained; wherein phase smoothing processing is carried out on an overlapping region between two adjacent sub-apertures by adopting a layered smoothing optimization algorithm; and calibrating the position of each sub-aperture and correcting the displacement error of each sub-aperture by using low-frequency information in a full-aperture detection result. According to the invention, synchronous high-precision synchronous detection of low-intermediate frequency errors of the aspheric cylindrical surface element can be realized.

The invention belongs to the technical field of analysis and detection of steel and iron materials, and particularly relates to a method for continuously detecting non-metallic inclusions in steel samples with different heights by utilizing OTS. Comprising the following steps: sequentially preparing a compensating plate, screening a deviation sample group, performing height compensation on a metallographic sample in the deviation sample group by using the compensating plate, and performing sample detection on the compensated deviation sample group. According to the invention, the metallographic sample with large height deviation can be continuously detected, on one hand, continuous work of the electron microscope can be realized without guarding and manpower is saved, on the other hand, an emitter of the electron microscope can be saved, continuous work of the emitter after detection of one sample is avoided, the cost is saved, and the detection efficiency is improved. Therefore, the working efficiency of detecting the non-metallic inclusions by using the OTS full-automatic analysis system for the non-metallic inclusions in the steel is improved.

The utility model relates to test appearance technical field especially is related to a kind of electric mark resistance mobile integrated machine. Including pedestal, pedestal is fixedly arranged with support frame, multiple electrode assemblies that can move horizontally are equipped on the support frame, the upper surface of the pedestal is equipped with placing table, one end of the pedestal is fixedly installed with stand, the stand is installed with adjusting plate, multiple dripping devices are equipped on the adjusting plate, the electrode assembly includes adjusting mechanism slidingly arranged on connecting frame, electrode probe is arranged at the end of adjusting mechanism, the horizontal position of electrode assembly is adjusted, and the electric mark resistance test is carried out to multiple samples to be measured on placing table. The electric mark resistance mobile integrated machine of the utility model can efficiently utilize space, and support multiple samples synchronous detection, realize the flexible adjustment of electrode and dripping position.

This invention discloses a concrete testing device for road and bridge construction, relating to the field of concrete testing. It includes a sample holder and a movable pressure plate. Vertical plates are fixed to both sides of the upper surface of the sample holder, and top plates are fixed to the top of each of the two vertical plates. A limiting groove for placing concrete blocks is formed at the center of the upper surface of the sample holder. The pressure plate is located above the limiting groove, and a groove is formed at the center of the upper surface of the pressure plate, in which a liquid storage cylinder is fixed. Liquid permeation holes are formed at the groove and at the bottom of the liquid storage cylinder on the lower surface of the pressure plate. A pressure application component and two transmission components are provided above the liquid storage cylinder. The two transmission components are symmetrically arranged on the pressure application component. Each of the two rope-winding rollers has an inner sprocket tooth on one corresponding spoke. This invention achieves simultaneous testing of concrete compressive strength and impermeability, shortens the testing cycle, and restores the stress environment of road and bridge concrete during actual service, improving the comprehensiveness and reliability of the test data.

The present application relates to the technical field of air volume detection, and particularly relates to a multi-hole uniform-speed air volume detection device, which comprises a shell, one side of the shell is fixedly connected with an air inlet flange, the other side of the shell is fixedly connected with an air outlet flange, the inner wall of the shell is fixedly installed with a partition plate on the side close to the air inlet flange, equidistant through holes are formed in the partition plate in a ring shape, an air volume centering mechanism is arranged on the inner side of the partition plate, and an air volume uniformity detection mechanism is arranged on the inner side of the air volume centering mechanism. The air volume centering mechanism and the air volume uniformity detection mechanism are used to effectively detect the air volume uniformity of the air outlet, the elliptical movable plate is used to extrude the annular movable sleeve under different air volume, so as to drive the conductive contact piece in the arc-shaped sliding block to contact and electrify the conductive block, the accurate judgment of the air volume uniformity is realized according to whether the conductive block is electrified under the same gear, and the accurate detection of the air volume uniformity is realized.

This utility model discloses a gauge for detecting the straightness and span of a long U-tube, belonging to the technical field of heat exchanger copper tube processing and mold manufacturing. It includes a base, a span detection component and a straightness detection component fixed on the base. The span detection component includes an outer shell fixed on the base, an inner shell that cooperates with the outer shell, and a U-shaped detection block fixed on the inner shell. The straightness detection component includes a lower support and an upper support, and a floating inner sleeve component located between the upper support and the lower support. The integrated span detection component and straightness detection component can simultaneously detect the center distance of the copper tube and the straightness, achieving synchronous detection of the two parameters. Moreover, by replacing the U-shaped detection block and the floating inner sleeve component with different sizes and specifications, it can be applied to the rapid detection of copper tubes of different diameters and the accuracy verification of the mold. That is, by using a replaceable inner diameter component to adapt to copper tubes of different diameters, the detection efficiency and accuracy are improved.

The invention relates to a synchronous detection method for impurities contained in candesartan cilexetil and amlodipine besylate, which is suitable for quality control of compound preparations. According to the method, a high performance liquid chromatography technology is adopted, an octadecyl silane bonded silica gel column is used as a chromatographic column, gradient elution conditions are optimized, a water-acetonitrile-trifluoroacetic acid mixed solution is used as a mobile phase A, and an acetonitrile-water-trifluoroacetic acid mixed solution is used as a mobile phase B; according to the method, the impurity contents of amlodipine besylate and candesartan cilexetil are respectively detected under the wavelengths of 240 nm and 253 nm through gradient elution, the separation degree R value is greater than 1.5, the detection sensitivity is high, and the lower quantification limit reaches 0.05%. The method can simultaneously separate and quantify various process impurities and degradation impurities of candesartan cilexetil and amlodipine besylate in the compound preparation, and has the characteristics of high efficiency, accuracy and stability. The method is easy and convenient to operate, low in cost and suitable for compound preparation quality control under the industrial production condition, and scientific support can be provided for improving the medicine quality standard.

The utility model discloses automatic assembly detection equipment, which relates to the technical field of assembly detection and comprises a workbench and a workpiece arranged on the surface of the workbench, a vertical plate is fixedly connected above the workbench, a transverse frame is fixedly mounted at the top end of the vertical plate, and the surface of the transverse frame is slidably connected with a movable frame through a slide rail; the surface of the movable frame is connected with an electric push rod through a supporting plate, the output end of the electric push rod is connected with a side plate, and an industrial camera is fixedly installed at the bottom end of the side plate. According to the utility model, the clamping rod and the industrial camera are arranged below the movable frame, so that the clamping rod can accurately detect the connection effect of the screw under the action that the clamping rod clamps the screw on the surface of the workpiece through the air cylinder, and the equipment can accurately record the detection result under the action of the industrial camera; the industrial camera can accurately and stably work on one side of the clamping rod conveniently, practicability is high, synchronous detection of components and mechanization is achieved, and applicability is wide.

The utility model provides electrical detection equipment for an integrated circuit, and belongs to the technical field of integrated circuit testing. The integrated circuit electrical detection equipment comprises a box body and a detection main body, the top end of the box body is provided with the detection main body, the bottom end of the detection main body extends into the box body, two sides of the inner wall of the box body are respectively provided with a plurality of electrode holders, and a placing mechanism is slidably connected between every two electrode holders. The placing mechanism comprises a transverse plate, a plurality of grooves, contacts, sliding rails, balls and elastic shifting pieces, the grooves are formed in the top end of the transverse plate, the contacts are arranged on the two sides of the interiors of the grooves respectively, the sliding rails are installed on the two sides of the transverse plate respectively, the outer walls of the two sliding rails are connected with the elastic shifting pieces respectively, and the balls are arranged on the elastic shifting pieces. An electrode metal sheet is installed on one side of the electrode base in an embedded mode, and one side of the elastic shifting piece is attached to one side of the electrode metal sheet.

The utility model discloses a frequency conversion type glass fiber yarn fixed length detection device, which comprises a bottom plate, a fixed rod, a reciprocating rod, a creel, a first driving structure and a second driving structure, a partition plate and a support are installed on the bottom plate, the fixed rod is fixed on the support, a plurality of first threading rings are distributed on the fixed rod along the axial direction of the fixed rod at equal intervals, and a plurality of second threading rings are distributed on the creel. The reciprocating rod and the fixing rod are arranged in parallel, one end of the reciprocating rod can be installed on the partition plate in a sliding mode in the axial direction of the reciprocating rod, the reciprocating rod is provided with a plurality of second threading rings matched with the first threading rings respectively, and the creel is rotatably installed on the partition plate. And the first driving structure is located on the side, away from the fixed rod, of the reciprocating rod and is in transmission connection with the reciprocating rod. According to the utility model, the detection accuracy is improved, manual participation is not needed, the detection efficiency is improved, and the labor cost is reduced.

This invention discloses a method and system for simultaneous analysis of multiple lipid indicators in fingertip capillary blood, relating to the field of chemical analysis. The method includes S1: micro-sample pretreatment of fingertip blood; S1.5: sample matrix interference pretreatment; S2: multi-channel parallel specific reaction; S3: multi-band spectral synchronous detection; S4: machine learning intelligent calibration and analysis; and S5: result output and quality control verification. This method and system achieves simultaneous detection of five core lipid indicators in fingertip blood samples in a short time, with low deviation and cross-interference rates between the detection results and venous blood biochemical detection, and high matrix interference inhibition rate. It also possesses advantages of portability, speed, and accuracy, solving the problems of low detection efficiency, limited applicability, and matrix interference affecting accuracy in existing technologies.

The present invention relates to a primer pair and a probe group, a kit and an application thereof for detecting animal Q fever, abortion chlamydia and brucellosis, and belongs to the technical field of pathogenic microorganism detection. The primer pair and the probe group and the kit of the present invention adopt triple fluorescence PCR detection, and can simultaneously detect and identify animal Q fever, abortion chlamydia and brucellosis that cause abortion, and have the advantages of high accuracy, high sensitivity, strong specificity, rapid high throughput, simple operation, etc.

The invention discloses a radio frequency amplifier testing assembly, and relates to the technical field of radio frequency amplifier testing, and the radio frequency amplifier testing assembly comprises an automatic feeding and conveying assembly which is installed at the side end of a front end bottom noise detection assembly through a supporting framework and is used for forming constant-speed conveying operation according to the detection speed, under the cooperation of the integrated detection assembly, the dynamic balance adjustment assembly and the front-end ground noise detection assembly, the universality and the production efficiency of equipment are improved, the ground noise detection function and the radio frequency signal detection function are further integrated, the overall performance and the data accuracy of the test system are improved, synchronous detection of multiple parameters is achieved, and the test efficiency is improved. Compared with the prior art, the method has the advantages that the trouble of frequently replacing detection connection lines and adjusting instrument settings in the traditional test is avoided, the operation process is further simplified, the risk of manual operation errors is reduced, the method can automatically adapt to the change of input and output impedance and working frequency, time waste and operation complexity caused by the calibration process are reduced, and the test efficiency is improved.

A salty water injection mechanism for pickled meat comprises a cross beam, a conveyor belt for horizontal transmission is arranged below the cross beam, and a probe assembly and a plurality of injection assemblies are longitudinally arranged on the cross beam; a driving mechanism for driving the probe assembly and the injection assembly to longitudinally slide is also arranged on the cross beam; the probe assembly and the injection assembly are arranged on the cross beam in a sliding mode through sliding rails, and meat products firstly pass through the probe assembly and then pass through the injection assembly in the conveying direction of the conveying belt; a controller is further arranged and is in control connection with the probe assembly and the injection assemblies, after the probe assembly detects the position and depth of the hard bone of the meat product, the position and depth of the hard bone are transmitted to the controller, and the controller controls needle heads at the corresponding positions of the injection assemblies to actively retract by the corresponding depth in advance. The needle head of the injection needle is prevented from being damaged by bones in meat products, meanwhile, only the probe needs to be replaced, and frequent replacement of the needle head is avoided.

The utility model relates to the technical field of fire-fighting equipment, and discloses an intelligent fire hydrant, which can detect the state of the fire hydrant in real time, give an alarm, accurately collect data, comprehensively supervise the fire hydrant and reduce the maintenance and management difficulty of the fire hydrant, and comprises a fire hydrant body provided with a water outlet nozzle at the upper part and internally provided with a partition plate, the partition plate divides an inner cavity of the fire hydrant body to form a control chamber and a water outlet channel below the control chamber, the water outlet channel is communicated with the water outlet nozzle and provided with a liftable valve rod penetrating through the partition plate, the bottom end of the valve rod is provided with a valve clack abutting against the inner wall of the water outlet channel in a sealed mode, and the inner wall of the water outlet channel is provided with an annular water passing groove. The valve clack gets close to or leaves the annular water passing groove when the valve rod ascends and descends, so that fire-fighting water flows into the water outlet channel, or the water outlet channel is separated from the fire-fighting water. A temperature and pressure integrated sensor and a liquid level sensor are arranged on the inner side of the valve clack, the control chamber is provided with a control circuit board and a power supply device, and the control circuit board is provided with a positioning sensor, a gravity sensor and a 4G transmission module in communication connection with a user platform.

The invention discloses a multi-surface detection method and system based on an electronic part, a clamping combination is defined according to a clamping area, a corresponding surface and the overall form of the electronic part, synchronous detection of multiple surfaces of the electronic part is realized, and the accuracy of the clamping combination is ensured. Defining a plurality of clamping points based on the clamping combination, the position of the electronic part and the current posture of the electronic part, and constructing a corresponding clamping tool according to the plurality of clamping points, the overall form of the electronic part and the core area of the electronic part; carrying out dynamic interaction on the conveying speed of the electronic part and the clamping speed of the clamping tool, and collecting the clamping force and clamping angles of a plurality of clamping points according to the clamping of the clamping tool on the electronic part; according to the clamping force of the multiple clamping points, the corresponding clamping angles and the posture balance coefficient of the electronic part, the dynamic clamping system of the electronic part is constructed, the accuracy of the dynamic clamping system of the electronic part is guaranteed, and dynamic clamping, clamping control and dynamic protection of the electronic part are achieved.

This invention relates to a method for synchronous detection of road surface anomalies based on hyperspectral imaging, belonging to the field of hyperspectral image processing and remote sensing detection technology. It solves the problems of low data processing efficiency, limited detection functions, and insufficient real-time performance in existing technologies. The method includes: acquiring hyperspectral images of various road surfaces, extracting key features, generating hyperspectral fingerprints, labeling road surface categories, and constructing a hyperspectral fingerprint database; training a fingerprint comparison model based on the hyperspectral fingerprint database to obtain a pre-trained fingerprint comparison model; acquiring road hyperspectral images in real time, extracting key features, generating a hyperspectral fingerprint to be tested, and obtaining the road surface category of the hyperspectral fingerprint to be tested based on the hyperspectral fingerprint database, the pre-trained fingerprint comparison model, and a hierarchical comparison strategy. This enables simultaneous detection of multiple anomalies such as icing, water accumulation, and road surface deterioration on an UAV-borne terminal.

The invention provides a method for detecting three-dimensional mechanical characteristics under sarcomedo movement. A culture dish in equipment is used for bearing sarcomedo; the probe measuring end of the microtube probe is used for forming negative pressure contact with a muscle joint, and the transverse elastic coefficient of the probe measuring end is the same as the longitudinal elastic coefficient; the tail end of the probe cantilever end of the microtube probe is provided with a microsphere, and the movement of the microsphere follows the movement of a muscle joint; an image acquisition unit in the detection module is positioned on one side opposite to the opening of the culture dish and is used for acquiring the movement change of the microspheres; the light source is located on the side facing the opening, the optical axis of the light source coincides with the optical axis of the image acquisition unit, the height from the light source to the culture dish is larger than that from the microspheres to the culture dish, and the light source is used for irradiating the microspheres so that diffraction rings of the microspheres can be formed on the light sensing plane of the image acquisition unit. According to the invention, synchronous detection of the three-dimensional mechanical characteristics of the sarcomedo is realized by monitoring the change of the diffraction ring.

The invention relates to a visual closed-loop detection method, system and device for an automatic filling and sealing production line in the technical field of flexible filling and sealing automatic production lines, a hyperspectral camera and a 3D visual camera are adopted for data acquisition of a calibration information base, respective mathematical models are established, a coupling model is constructed, and finally whether the product is a qualified product or not is judged. Through multi-dimensional data fusion of the hyperspectral camera and the 3D camera, synchronous detection of spectral features and three-dimensional structure parameters of the potting layer is realized, single-dimensional judgment of traditional manual visual inspection is upgraded to multi-modal composite analysis, the detection precision and reliability are greatly improved, and particularly, whether a potting adhesive of a potting product is cured or not can be accurately judged.

The present invention relates to a scanning bright and dark field synchronous interference measurement device and a measurement method for defects and surface shapes of optical elements, and relates to the technical field of surface / sub-surface defect detection of optical elements. The present invention solves the technical problems that the existing imaging method has high requirements on the stability of the device and the environment, the accuracy is greatly affected by the surface quality of the tested piece, and it is not suitable for the situation where the surface roughness is large and the sub-surface defect layer is deep, and there is no technical means for synchronous detection of surface shape and defects. The measuring device includes: a low-coherence light source, a fiber coupler, two reference arms, a detection arm, and a dual-channel spectral detector. The scanning bright and dark field synchronous interference measurement device for defects and surface shapes of optical elements of the present invention can realize synchronous measurement of defects and surface shapes, and can obtain a three-dimensional tomographic image at one time through a low-coherence light source and a scanning galvanometer, and has a certain penetration ability according to the interaction between light and material, and can obtain synchronous detection of surface / sub-surface defects and morphological geometric parameters through an image extraction algorithm.

The application discloses a kind of for sound vibration integrated monitoring optical fiber sensor, monitoring device and method, wherein optical fiber sensor includes: sensing skeleton, for detecting ultrasonic signal and vibration signal;The side of sensing skeleton is cylindrical surface, and the end face of both sides is formed into conical recess inward, and conical recess focuses ultrasonic signal by reflection on the side of sensing skeleton;Diaphragm is set to the side end of sensing skeleton, for converting vibration signal into sound wave;First sensing optical fiber is wound on the side of sensing skeleton, for converting ultrasonic signal into first optical signal;Second sensing optical fiber is set on diaphragm, for converting sound wave into second optical signal;Wherein, first optical signal and second optical signal are output to outside, and after signal processing, the ultrasonic signal and vibration signal detected are obtained.The application realizes the simultaneous monitoring of sound wave and vibration, and is suitable for various damage monitoring.

The utility model belongs to biscuit production technical field, concretely relates to a kind of automatic picking device of broken biscuit, including conveying frame, the port of air inlet pipe is successively equipped with baffle ring and wind speed detector, the bottom of the blocking plate is equipped with multiple automatic baffle, the conveying frame is symmetrically equipped with two the material guide plate and two conveyer belts, the symmetry axis of the material guide plate and the conveyer belt is perpendicular, the material guide plate covers the top of one the conveyer belt and then tilts to another the conveyer belt;By setting suction plate, baffle ring, wind speed detector and negative pressure device, biscuit will cause hindrance to the airflow entering air inlet pipe, the ability of airflow hindering of complete biscuit and broken biscuit is different, whether biscuit is broken can be determined by comparing wind speed, biscuit is lifted by airflow during detection, after detection, biscuit falls down, secondary detection is carried out at this time, avoid the accuracy of device detection to reduce due to crack in biscuit.