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33results about How to "Realize arrayization" patented technology
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Distributed optical fiber white light interference sensor array based on adjustable Fabry-Perot resonant cavity
InactiveCN101324445AWith common light path structureImprove temperature stabilityCoupling light guidesConverting sensor output opticallySensor arrayBeam splitter
The invention provides a distributed fiber white-light interference sensor array based on tunable Fabry-Perot resonant cavity, which is composed of a duplex photoelectric device, a tunable Fabry-Perot resonant cavity, a single-mode connection fiber and a sensor, wherein the tunable Fabry-Perot resonant cavity is composed of a scanning prism, a self-focusing lens, and a single-mode optical fiber with partial reflection surface; the duplex photoelectric device is composed of a wide-spectrum light source with a common base, an emitter and a collector, a photodetector, and a beam splitter prism; the beam with a certain spectral width is emitted by the light source to the resonant cavity directly through the beam splitter prism and is reflected multiple times by the left and the right surfaces of the resonant cavity to obtain a signal light; and the signal light outputted from the right cavity surface enters the sensor through the single-mode connection fiber, reflected by the left and the right end faces of the sensor, returns along the original path to the resonant, and is outputted from the left cavity surface to the photodetector. The distributed fiber white-light interference sensor array has a common light path structure and has the advantages of good temperature stability, simplest optical fiber path structure, low cost and high practicality.
Owner:HARBIN ENG UNIV
Distributed Michelson optical fibre white light interference sensing device
InactiveCN101963515AImprove reusabilityImprove effective utilizationCoupling light guidesConverting sensor output opticallySensor arrayMultiplexing
The invention provides a distributed Michelson optical fibre white light interference sensing device, comprising a broadband light source, a light source isolation device, an enquirer device, an optical fibre circulator, a lead-in / lead-out optical fibre, an optical fibre sensor array and a photoelectric detector. The light rays emitted from the light source enter the enquirer device and are then divided into two beams of which one is used as reference light and the other is used as sensing light; both the reference light and sensing light enter the optical fibre circulator, enter the optical fibre sensor array through the lead-in / lead-out optical fibre along the same transmission path, return the same way after being reflected by the sensor array and enter the photoelectric detector through the optical fibre circulator. By introducing the optical fibre circulator, the invention improves the multiplexing ability of the sensing system, improves the light source utilization efficiency and has good stability as sensing signals and reference signals share the same optical path in the sensor array.
Owner:HARBIN ENG UNIV
Optical path autocorrelator for distributed optical fiber strain sensing measurement
The invention provides an optical path autocorrelator for distributed optical fiber strain sensing measurement, which is formed by sequentially connecting a broad spectrum light source (1), an annular multibeam generator (2), an optical path autocorrelation detecting unit (3), a transmission optical fiber (4) and an optical fiber sensor array (5) end to end; the annular multibeam generator (2) comprises a 2*2 optical fiber coupler (21), a first three-port optical circulator (22), an optical fiber collimator (23) and a movable optical reflector (24); and the optical path autocorrelation detecting unit (3) comprises a second three-port optical circulator (31), an optical detector (32) and an interference signal detecting and processing unit (33). The invention can realize real-time monitoring and measurement of physical quantities, such as multi-point strain or deformation, and the like,solve the problems of overlarge light source power loss and superlow light source utilization ratio when a plurality of sensors are multiplexed in an optical fiber and the problem of measurement precision reduction caused by the existence of light source feedback light and improve the stability of a system.
Owner:HARBIN ENG UNIV
Quasi-distribution optical fiber white-light strain sensing and demodulation device based on nonequilibrium Michelson interferometer
InactiveCN102162742ASimple structureEasy to useCoupling light guidesConverting sensor output opticallySensor arrayMichelson interferometer
The invention provides a quasi-distribution optical fiber white-light strain sensing and demodulation device based on a nonequilibrium Michelson interferometer. The device consists of a photoelectric device, a nonequilibrium Michelson interferometer, a single mode connection optical fiber and a serial optical fiber sensor array, wherein the photoelectric device consists of a broadband light source, a three-port circulator and a photoelectric detector; the nonequilibrium Michelson interferometer consists of a plated optical fiber reflection end, a scanning reflection mirror, a focusing lens and a 3dB optical fiber 2x2 coupler; and the serial optical fiber sensor array is formed by connecting optical fiber sensors in series. The device has the advantages of simple structure, convenience of use, low production cost, distributed measurement expansion, wide dynamic measurement range, high measurement precision, high anti-interference performance and the like, can sense and detect physical values such as distributed deformation, strain, temperature, pressure and the like, and can be used for monitoring intelligent structures in large sizes, and sensing a plurality of tasks, a plurality of elements, local strain and large-scale deformation.
Owner:HARBIN ENG UNIV
Ultrasonic transducer and manufacturing method thereof
InactiveCN109561876ARealize arrayizationEasy to control independentlyUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsClosed cavityUltrasonic transducer array
The invention provides an ultrasonic transducer and a manufacturing method thereof. The ultrasonic transducer comprises a substrate (106), a lower electrode (105), a support block (103), a diaphragm layer (102), and an upper electrode (101) arranged sequentially in a stacked manner, wherein a groove is arranged on a surface of the substrate near the diaphragm layer, and the lower electrode is filled in the groove, the support block (103) separates the space between the diaphragm layer (102) and the substrate (106) into a closed cavity (104), and the cavity (104) corresponds to the position ofthe lower electrode (105). Therefore, arraying of the low electrode is realized, the lead mode is simpler, and the transmission and reception of ultrasonic transducer array elements are conveniently controlled independently.
Owner:SHENZHEN GOODIX TECH CO LTD
Low coherence multiplex optical fiber interferometer based on non-balanced Mach-Zehnder optical autocorrelator
InactiveCN101995265ASuppression of optical path matching interference noiseImprove utilization efficiencyUsing optical meansConverting sensor output opticallyAutocorrelatorPhotodetector
The invention provides a low coherence multiplex optical fiber interferometer based on a non-balanced Mach-Zehnder optical autocorrelator. The optical fiber interferometer is formed by successively connecting a wide-spectrum light source (1), the non-balanced Mach-Zehnder optical autocorrelator (2), an optical distance autocorrelation detection unit (3), a transmission optical fiber (4) and an optical fiber sensor array (5) from end to end, wherein the non-balanced Mach-Zehnder optical autocorrelator (2) is composed of a first optical fiber coupler (21), a three-port optical circulator (23), an optical fiber collimator (24), a moveable optical reflector (25) and a second optical fiber coupler (26); and the optical distance autocorrelation detection unit (3) is composed of a three-port optical circulator (31) or (33), a photodetector (32) or (34). The optical fiber interferometer can be applied to the fields such as real-time monitoring and measurement of multipoint strain or temperature and other physical quantities, monitoring of large-sized intelligent structures and the like.
Owner:HARBIN ENG UNIV
Dual-mode sensing unit and dual-mode sensor
PendingCN110243396ASimplify complexityRealize proximity functionConverting sensor output electrically/magneticallyCapacitanceMicro structure
The invention discloses a dual-mode sensing unit and a dual-mode sensor. The dual-mode sensing unit comprises a shielding layer, a piezoelectric conducting layer, a capacitance sensing layer, and a flexible bulging layer; the shielding layer is fixedly connected with the piezoelectric conducting layer, and the shielding layer is grounded; the piezoelectric conducting layer comprises a conductive electrode and a piezoresistance sensitive layer; a raised micro-structure is arranged at the piezoresistance sensitive layer; the capacitance sensing layer comprises a first flexible substrate, an emitting electrode and a receiving electrode; the emitting electrode and the receiving electrode are fixed at a bottom face of the first flexible substrate, the emitting electrode and the receiving electrode are arranged at an upper layer and a lower layer, and the emitting electrode and the raised micro-structure are in conductive connection; the flexible bulge layer is fixedly connected with the first flexible substrate, and a stress collection bulge is arranged on an upper end surface of the flexible bulge layer. The dual-mode sensing unit possesses the proximity sense and touch sensing functions at the same time; the dual-mode sensor is formed by arranging multiple dual-mode sensing unit matrixes, and multiple dual-mode sensing unit matrixes are connected through a flexible substrate; and the dual-mode sensing unit has good flexibility, and the internal circuit is concise.
Owner:GUANGZHOU HKUST FOK YING TUNG RES INST
Nano ZnO semiconductor junction array and preparation method thereof
InactiveCN101538062ARealize arrayizationAchieve growthNanostructure manufactureZinc oxides/hydroxidesNanometreSemiconductor
The invention relates to a nano ZnO semiconductor junction array and a preparation method thereof, belonging to the field of low-dimensional nano materials and nano technology. The method comprises the following steps of: adopting a CVD method to prepare ZnO seed crystal on a Si substrate, and then putting the seed crystal in solution for continuous growth; carrying out heat treatment on the product grown by the solution method, cooling and then carrying out primary solution-method growth once again so as to obtain the needed product. In the two times of solution-method growth processes, the ZnO can be doped, thus realizing that the ZnO semiconductor junction is arrayed and further realizing growth of the nano ZnO array on a single ZnO micron column. The method not only can realize the growth of a ZnO homojunction array, but also can be used for growing a ZnO heterojunction array, and has low growth temperature, simple equipment and low cost.
Owner:UNIV OF SCI & TECH BEIJING
Method and device for inquiring signals by unbalanced Mach-Zehnder interferometer
ActiveCN102135437AImprove anti-interference abilityLight path structure is simpleUsing optical meansMitigation of undesired influencesPhotovoltaic detectorsMach–Zehnder interferometer
The invention discloses a method and a device for inquiring a plurality of signals by an unbalanced Mach-Zehnder interferometer. The device consists of a wide-spectrum light source, a three-port circulator, a photoelectric detector, the unbalanced Mach-Zehnder interferometer, a single-mode connection optical fibre and a serial optical fibre sensor array, wherein the wide-spectrum light source andthe photoelectric detector form transmitting and receiving photoelectric devices through the three-port circulator; the unbalanced Mach-Zehnder interferometer consists of a scanning prism, a half-reflecting and half-transmitting mirror and a self-focusing lens; and the serial optical fibre sensor array is an end-to-end serial array formed by a series of single-mode optical fibre sections which are unequal in length. The invention has the advantages of simple structure, easy implementation, convenient use, low cost, expansion of a distributed measuring method, adjustable dynamic range and accuracy, relatively strong anti-interference and the like. The method and the device can be used for sensing detection on physical quantities such as distributed deformation, strain, a temperature and a pressure.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Multichannel microfluidic fluorescence detection device and method
ActiveCN107255710AHigh photosensitivity and photoconductive gainReduce preparation difficulty and costBiological testingFluorescence/phosphorescencePhysicsFluorescence
The invention discloses a multichannel microfluidic fluorescence detection device and method; the device comprises a light source, a microfluidic chip and a photoelectric thin-film transistor; the photoelectric thin-film transistor has multiple detection arrays, each detection array has multiple double-gate thin-film transistors each composed of a top gate, a drain, a bottom gate and a source, and the double-gate thin-film transistors in each detection array are arrayed. The multichannel microfluidic fluorescence detection device and method employ the double-gate thin-film transistors which are integrated to the multichannel microfluidic chip, and the multichannel microfluidic fluorescence acquisition system integrated and miniaturized is formed to collect and detect fluorescence signals, has high light sensitivity and photoconductive gain, is very suitable for fluorescence detection, is low in production difficulty and cost, low in power consumption and high in integrity, and is applicable to large-area manufacture to arrive at arraying.
Owner:SYSU CMU SHUNDE INT JOINT RES INST +1
Lamb wave immunosensor and manufacturing method thereof
InactiveCN102520160ARealize arrayizationSolve the problem that cannot be arrayedMaterial analysisHigh fluxCapture antibody
The invention discloses a Lamb wave immunosensor capable of performing array, high-flux, large-sample and quick measurement on immunoreaction. The Lamb wave immunosensor comprises an upper magnet and a lower magnet, wherein a Lamb wave sensor is arranged between the upper magnet and the lower magnet; a pipeline gland is glued above the Lamb wave sensor; the Lamb wave sensor comprises a silicon thin film structure with a plurality of sample cells; a conductive stratum is arranged below the silicon thin film structure; a piezoelectric material layer is arranged below the conductive stratum; an integrated device technology (IDT) electrode layer is arranged on the piezoelectric material layer, and comprises a plurality of gear shaping electrodes and a plurality of welding spot ports; a pair of electrode ports is arranged on each of the gear shaping electrodes; marking antibodies, immune micro magnetic balls and capturing antibodies are cultivated in the sample cells; a sample cell channel is formed on the pipeline surface of the pipeline gland, which is attached to the Lamb wave sensor; and a through hole is formed in each of two ends of the sample cell channel.
Owner:SUZHOU SASENS CO LTD
Method and device for inquiring signals by unbalanced Mach-Zehnder interferometer
ActiveCN102135437BImprove anti-interference abilityLight path structure is simpleUsing optical meansMitigation of undesired influencesPhotovoltaic detectorsMach–Zehnder interferometer
The invention discloses a method and a device for inquiring a plurality of signals by an unbalanced Mach-Zehnder interferometer. The device consists of a wide-spectrum light source, a three-port circulator, a photoelectric detector, the unbalanced Mach-Zehnder interferometer, a single-mode connection optical fibre and a serial optical fibre sensor array, wherein the wide-spectrum light source andthe photoelectric detector form transmitting and receiving photoelectric devices through the three-port circulator; the unbalanced Mach-Zehnder interferometer consists of a scanning prism, a half-reflecting and half-transmitting mirror and a self-focusing lens; and the serial optical fibre sensor array is an end-to-end serial array formed by a series of single-mode optical fibre sections which are unequal in length. The invention has the advantages of simple structure, easy implementation, convenient use, low cost, expansion of a distributed measuring method, adjustable dynamic range and accuracy, relatively strong anti-interference and the like. The method and the device can be used for sensing detection on physical quantities such as distributed deformation, strain, a temperature and a pressure.
Owner:GUILIN UNIV OF ELECTRONIC TECH
Low coherence multiplex optical fiber interferometer based on non-balanced Mach-Zehnder optical autocorrelator
InactiveCN101995265BIncrease profitIncrease powerUsing optical meansConverting sensor output opticallyOptical reflectionSensor array
The invention provides a low coherence multiplex optical fiber interferometer based on a non-balanced Mach-Zehnder optical autocorrelator. The optical fiber interferometer is formed by successively connecting a wide-spectrum light source (1), the non-balanced Mach-Zehnder optical autocorrelator (2), an optical distance autocorrelation detection unit (3), a transmission optical fiber (4) and an optical fiber sensor array (5) from end to end, wherein the non-balanced Mach-Zehnder optical autocorrelator (2) is composed of a first optical fiber coupler (21), a three-port optical circulator (23), an optical fiber collimator (24), a moveable optical reflector (25) and a second optical fiber coupler (26); and the optical distance autocorrelation detection unit (3) is composed of a three-port optical circulator (31) or (33), a photodetector (32) or (34). The optical fiber interferometer can be applied to the fields such as real-time monitoring and measurement of multipoint strain or temperature and other physical quantities, monitoring of large-sized intelligent structures and the like.
Owner:HARBIN ENG UNIV
Density gradient array
ActiveCN102879297AImprove preparation efficiencyRealize arrayizationSpecific gravity measurementEngineeringCommunicating vessels
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Automatic trace sample feeding device of electrophoresis detector and manufacturing method and control method of automatic trace sample feeding device
ActiveCN106959332ASolve for uniformitySolve the accuracy problemMaterial analysis by electric/magnetic meansCapillary electrophoresisIsolation valve
The invention relates to an automatic trace sample feeding device of an electrophoresis detector and a manufacturing method and control method of the automatic trace sample feeding device. The automatic trace sample feeding device comprises a microfluid sample feeding module, a microfluid sample discharging module, a first micro electromagnetic driving pump, a second micro electromagnetic driving pump, a first micro partitioning valve, a second micro partitioning valve, a high-voltage power supply, a sample bottle, a buffer liquid bottle, a sample waste liquid bottle, a waste buffer liquid bottle, a control circuit board, a control system, a storage battery and a double-layer bracket. The automatic trace sample feeding device is applicable to automatic trace sample feeding of a portable capillary electrophoresis detector and a microfluid electrophoresis chip, precise, automatic and repeated sample injection is achieved, operation errors are reduced, the operation efficiency is improved, artificial interference is avoided, a uniform sample feeding amount of each time is ensured, meanwhile a rapid capillary tube replacing interface is available, and sample pollution caused by the situation that a capillary tube is not easily cleaned on site is avoided.
Owner:合肥中科方舟机器人技术有限公司
Broad spectrum displayer covering visible light to infrared wave band
The invention discloses a broad spectrum displayer covering visible light to an infrared band. The broadband spectrum displayer covering the visible light to the infrared band consists of an array of display units; the display unit comprises a second electrode (9), a hydrophobic insulating layer (8), a fluid chamber (2), a blocking layer (6), a medium layer (5), a first electrode (4), a substrate (3) and an illumination layer (14) which are successively arranged from the top to the bottom; and the two ends of a periphery driving circuit (13) are respectively connected to the first electrode (4) and the second electrode (9). The broad spectrum displayer covering the visible light to the infrared band uses a localized surface Plasmon resonance effect of Plasmon nanometer particles. When distance between nanometer particles changes, a spectral peak of a spectrum can move so as to change the color of a display unit and realize the dynamic tuning of the spectrum. The broadband spectrum displayer can fast respond, can be used as a micro-displayer to be applied to an anti-fake label and can realize flexible display, and is low in cost and simple in manufacture technology.
Owner:SOUTHEAST UNIV
A method of monolayer array of diatom frustule particles
ActiveCN106430089BRealize arrayizationFast waySpecific nanostructure formationManufacturing technologyLiquid state
The invention discloses a diatom shell micro particle single layer array method belonging to the technical field of micro nanometer advanced processing. The method achieves the diatom shell micro particle multi-array by the two methods of hexyl hydride swelling and array base transfer. The hexyl hydride swelling array method transfers the densely arranged diatom shell micro particle to a PDMS module, after crossing the liquid state hexyl hydride swelling PDMS, transfers the micro particle to the gas state hexyl hydride inside, achieving a large surface area diatom shell micro particle fast array building, the step is simple, applies speedily, and prices low, and normalizes diatom shell piece single unit, the middle of the shell pieces forms an equidistance array, providing technical support for every type of preparation and application based on the diatom and the diatom soil micro device. The base array transfer method adheres the equidistance array base to the densely arranged diatom shell micro particle, then transfers to the stickness carrying PDMS module, achieving the single layer zone diatom shell micro particle array normalization, the step is simple, speedy, and constructs a base touch face pattern and achieves the single layer densely arranged diatom pattern array normalization.
Owner:CHINA AGRI UNIV
Distributed Michelson optical fibre white light interference sensing device
InactiveCN101963515BImprove reusabilityImprove effective utilizationCoupling light guidesConverting sensor output opticallySensor arrayMultiplexing
The invention provides a distributed Michelson optical fibre white light interference sensing device, comprising a broadband light source, a light source isolation device, an enquirer device, an optical fibre circulator, a lead-in / lead-out optical fibre, an optical fibre sensor array and a photoelectric detector. The light rays emitted from the light source enter the enquirer device and are then divided into two beams of which one is used as reference light and the other is used as sensing light; both the reference light and sensing light enter the optical fibre circulator, enter the optical fibre sensor array through the lead-in / lead-out optical fibre along the same transmission path, return the same way after being reflected by the sensor array and enter the photoelectric detector through the optical fibre circulator. By introducing the optical fibre circulator, the invention improves the multiplexing ability of the sensing system, improves the light source utilization efficiency and has good stability as sensing signals and reference signals share the same optical path in the sensor array.
Owner:HARBIN ENG UNIV
Quasi-distribution optical fiber white-light strain sensing and demodulation device based on nonequilibrium Michelson interferometer
InactiveCN102162742BImprove anti-interference abilityExpand the scanning range of spatial optical pathCoupling light guidesConverting sensor output opticallySensor arrayMichelson interferometer
The invention provides a quasi-distribution optical fiber white-light strain sensing and demodulation device based on a nonequilibrium Michelson interferometer. The device consists of a photoelectric device, a nonequilibrium Michelson interferometer, a single mode connection optical fiber and a serial optical fiber sensor array, wherein the photoelectric device consists of a broadband light source, a three-port circulator and a photoelectric detector; the nonequilibrium Michelson interferometer consists of a plated optical fiber reflection end, a scanning reflection mirror, a focusing lens and a 3dB optical fiber 2x2 coupler; and the serial optical fiber sensor array is formed by connecting optical fiber sensors in series. The device has the advantages of simple structure, convenience of use, low production cost, distributed measurement expansion, wide dynamic measurement range, high measurement precision, high anti-interference performance and the like, can sense and detect physical values such as distributed deformation, strain, temperature, pressure and the like, and can be used for monitoring intelligent structures in large sizes, and sensing a plurality of tasks, a plurality of elements, local strain and large-scale deformation.
Owner:HARBIN ENG UNIV
Method for preparing silver nano array
InactiveCN107539947AReduce defectsIncrease the areaMaterial nanotechnologyNanostructure manufactureNano structuringOptical property
The invention provides a silver nano-array manufacturing method, which is easy to operate, realizes the array of localized surface plasmon structures, and can also fill different units with nano-sphere structures of different sizes, which is a simple and effective method. Nano-metal structure processing means, the silver nano-array structure produced by this method has the characteristics of low defect, high specific surface area and structural order. Sensitive biosensing provides an effective means.
Owner:韦献艺
Multi-channel microfluidic fluorescence detection device and method
ActiveCN107255710BHigh sensitivityHighly integratedBiological testingFluorescence/phosphorescenceFluorescenceBottom gate
The invention discloses a multichannel microfluidic fluorescence detection device and method; the device comprises a light source, a microfluidic chip and a photoelectric thin-film transistor; the photoelectric thin-film transistor has multiple detection arrays, each detection array has multiple double-gate thin-film transistors each composed of a top gate, a drain, a bottom gate and a source, and the double-gate thin-film transistors in each detection array are arrayed. The multichannel microfluidic fluorescence detection device and method employ the double-gate thin-film transistors which are integrated to the multichannel microfluidic chip, and the multichannel microfluidic fluorescence acquisition system integrated and miniaturized is formed to collect and detect fluorescence signals, has high light sensitivity and photoconductive gain, is very suitable for fluorescence detection, is low in production difficulty and cost, low in power consumption and high in integrity, and is applicable to large-area manufacture to arrive at arraying.
Owner:SYSU CMU SHUNDE INT JOINT RES INST +1
Automatic micro-sampling device and control method for electrophoresis detector
ActiveCN106959332BEliminate stressorsReduce defectsMaterial analysis by electric/magnetic meansCapillary electrophoresisIsolation valve
The invention relates to an automatic trace sample feeding device of an electrophoresis detector and a manufacturing method and control method of the automatic trace sample feeding device. The automatic trace sample feeding device comprises a microfluid sample feeding module, a microfluid sample discharging module, a first micro electromagnetic driving pump, a second micro electromagnetic driving pump, a first micro partitioning valve, a second micro partitioning valve, a high-voltage power supply, a sample bottle, a buffer liquid bottle, a sample waste liquid bottle, a waste buffer liquid bottle, a control circuit board, a control system, a storage battery and a double-layer bracket. The automatic trace sample feeding device is applicable to automatic trace sample feeding of a portable capillary electrophoresis detector and a microfluid electrophoresis chip, precise, automatic and repeated sample injection is achieved, operation errors are reduced, the operation efficiency is improved, artificial interference is avoided, a uniform sample feeding amount of each time is ensured, meanwhile a rapid capillary tube replacing interface is available, and sample pollution caused by the situation that a capillary tube is not easily cleaned on site is avoided.
Owner:合肥中科方舟机器人技术有限公司
Three-dimensional force tactile sensing unit based on the combination of capacitance and pressure-sensitive rubber
Owner:ZHEJIANG UNIV
Distributed optical fiber white light interference sensor array based on adjustable Fabry-Perot resonant cavity
InactiveCN101324445BWith common light path structureImprove temperature stabilityCoupling light guidesConverting sensor output opticallySensor arrayBeam splitter
The invention provides a distributed fiber white-light interference sensor array based on tunable Fabry-Perot resonant cavity, which is composed of a duplex photoelectric device, a tunable Fabry-Perotresonant cavity, a single-mode connection fiber and a sensor, wherein the tunable Fabry-Perot resonant cavity is composed of a scanning prism, a self-focusing lens, and a single-mode optical fiber with partial reflection surface; the duplex photoelectric device is composed of a wide-spectrum light source with a common base, an emitter and a collector, a photodetector, and a beam splitter prism; the beam with a certain spectral width is emitted by the light source to the resonant cavity directly through the beam splitter prism and is reflected multiple times by the left and the right surfacesof the resonant cavity to obtain a signal light; and the signal light outputted from the right cavity surface enters the sensor through the single-mode connection fiber, reflected by the left and theright end faces of the sensor, returns along the original path to the resonant, and is outputted from the left cavity surface to the photodetector. The distributed fiber white-light interference sensor array has a common light path structure and has the advantages of good temperature stability, simplest optical fiber path structure, low cost and high practicality.
Owner:HARBIN ENG UNIV
Manufacturing method for gold nanometer array
InactiveCN107539946AEasy to operateHigh specific surface areaMaterial nanotechnologyIndividual molecule manipulationOrder structureNanometre
The invention provides a method for making a gold nanoarray, which is easy to operate, realizes the array of local surface plasmon structures, and can also fill different units with nanosphere structures of different sizes, which is a simple and effective method. Nano-metal structure processing means, the gold nano-array structure produced by this method has the characteristics of low defect, high specific surface area and structural order. Sensitive biosensing provides an effective means.
Owner:韦献艺
Lamb wave immune sensor and its device manufacturing method
The invention discloses a Lamb wave immune sensor capable of realizing arraying of immune reactions, high throughput, large samples, and rapid measurement, which includes an upper magnet and a lower magnet, and a Lamb wave sensor is arranged between the upper magnet and the lower magnet , a pipe gland is glued above the Lamb wave sensor; the Lamb wave sensor includes a silicon thin film structure provided with a plurality of sample pools, a conductive stratum is below the silicon thin film structure, a piezoelectric material layer is placed below the conductive stratum, and the piezoelectric material layer A layer of IDT electrode layer is provided on the top, and the IDT electrode layer includes several interdigital electrodes and several solder joint ports. A pair of electrode ports are respectively arranged on the several interdigital electrodes. Labeled antibodies, immune micromagnetic beads and Capturing antibodies; a sample pool channel is opened on the surface of the tube where the tube gland is bonded to the Lamb wave sensor, and a through hole is opened at both ends of the sample pool channel.
Owner:SUZHOU SASENS CO LTD
Optical path autocorrelator for distributed optical fiber strain sensing measurement
InactiveCN101995227BIncrease profitIncrease powerUsing optical meansSensor arrayOptical fiber coupler
The invention provides an optical path autocorrelator for distributed optical fiber strain sensing measurement, which is formed by sequentially connecting a broad spectrum light source (1), an annular multibeam generator (2), an optical path autocorrelation detecting unit (3), a transmission optical fiber (4) and an optical fiber sensor array (5) end to end; the annular multibeam generator (2) comprises a 2*2 optical fiber coupler (21), a first three-port optical circulator (22), an optical fiber collimator (23) and a movable optical reflector (24); and the optical path autocorrelation detecting unit (3) comprises a second three-port optical circulator (31), an optical detector (32) and an interference signal detecting and processing unit (33). The invention can realize real-time monitoring and measurement of physical quantities, such as multi-point strain or deformation, and the like,solve the problems of overlarge light source power loss and superlow light source utilization ratio when a plurality of sensors are multiplexed in an optical fiber and the problem of measurement precision reduction caused by the existence of light source feedback light and improve the stability of a system.
Owner:HARBIN ENG UNIV
A Broad Spectrum Display Covering Visible to Infrared Bands
The invention discloses a wide-spectrum display covering visible light to infrared bands, which is composed of arrayed display units, and its positional relationship from top to bottom is a second electrode (9), a hydrophobic insulating layer (8), and a fluid chamber chamber (2), barrier layer (6), dielectric layer (5), first electrode (4), substrate (3), lighting layer (14), and the two ends of the peripheral drive circuit (13) are respectively connected to the first electrode ( 4) and the second electrode (9). Utilizing the localized plasmon resonance effect of plasmonic nanoparticles, when the distance between the nanoparticles changes, the peak of the spectral spectrum moves, thereby changing the color of the display unit and realizing the dynamic tunable spectrum. The display has fast response speed, can be used as a microdisplay, and can be applied to anti-counterfeit signs; it can also realize flexible display, and has the advantages of low cost, simple manufacturing process, and the like.
Owner:SOUTHEAST UNIV
Full-flexible pyroelectric infrared detector
PendingCN111486973AIncrease temperatureReduce the temperatureDecorative surface effectsOptical detectionEngineeringInfrared detector
The invention discloses a full-flexible pyroelectric infrared detector, and relates to the field of pyroelectric sensor structure design. The full-flexible pyroelectric infrared detector comprises a flexible infrared radiation modulation mechanism and a flexible infrared sensitive unit. The flexible infrared radiation modulation mechanism is a single-end or double-end supporting metal film cantilever beam. A voltage signal with a certain frequency is applied between a cantilever beam and the upper electrode layer of the flexible infrared sensitive unit, and the cantilever beam can move up anddown within a certain range according to the corresponding frequency so that the cantilever beam is periodically separated from and contacted with the upper surface of the flexible infrared sensitiveunit, and infrared radiation modulation is realized. The problem that integration and flexibility are difficult to achieve due to the fact that an existing pyroelectric infrared detector adopts a mechanical chopper is solved, and the pyroelectric infrared detector can be applied to wearable electronic equipment such as a flexible temperature sensor and a flexible thermal infrared imager.
Owner:成都众芯科技有限公司
A method and device for adjusting the focal length of a microlens array
Owner:CHENGDU UNIV OF INFORMATION TECH
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