CN113281227A - Fiber array dynamic imbibition tester convenient to operate and use - Google Patents
Fiber array dynamic imbibition tester convenient to operate and use Download PDFInfo
- Publication number
- CN113281227A CN113281227A CN202110768544.2A CN202110768544A CN113281227A CN 113281227 A CN113281227 A CN 113281227A CN 202110768544 A CN202110768544 A CN 202110768544A CN 113281227 A CN113281227 A CN 113281227A
- Authority
- CN
- China
- Prior art keywords
- test box
- laser
- sample
- tester
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N2013/003—Diffusion; diffusivity between liquids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to the technical field of moisture absorption material detection, and discloses an optical fiber array dynamic liquid absorption tester convenient to operate and use. Through the solid subassembly of pressure that sets up on the test box, can realize the quick assembly disassembly of sample bracket in the test box, convenient and fast, labour saving and time saving.
Description
Technical Field
The invention relates to the technical field of moisture absorption material detection, in particular to an optical fiber array dynamic liquid absorption tester convenient to operate and use.
Background
The liquid absorption performance of the material is one of the important application performances of the material, and the material is widely applied to the industries of textile, papermaking, medical treatment and health care and the like. The textile and clothing industry often adopts the performance to represent the moisture absorption and quick drying performance of the fabric and underwear of the sportswear; the performance is often adopted in the paper making industry and the tobacco industry to evaluate the water content of paper or tobacco leaves; the medical industry is used for evaluating the absorption performance of surgical gowns, bed sheets and the like on blood; the sanitary industry focuses on the absorption and permeability of liquids such as diapers, sanitary napkins, and the like. In recent years, tissue materials such as artificial blood vessels and nerves made of nanofibers are also required to be evaluated for their absorption and permeation properties into blood.
At present, a mainstream test instrument in the market mainly comprises a detection box, a sample bracket which is arranged in the detection box and used for bearing a material sample to be detected, and a detection device for detecting the diffusion characteristic of liquid on the material sample to be detected. The sample bracket is provided with a bracket which is matched with the shape and the structure of the material sample to be measured, so that the material sample to be measured is placed on the bracket more stably.
The bracket shape on the sample bracket in the prior art is relatively fixed, and when the material samples to be tested with different shapes and structures need to be placed, the sample bracket needs to be removed from the test box and replaced into the bracket with the required shape and structure. But the mounting means of sample bracket on the test box is mostly fixed through the screw, and is consuming time and power, and the dismouting operation is inconvenient.
Disclosure of Invention
In order to solve the technical problems of inconvenient disassembly and assembly operation, time consumption and labor consumption of a sample bracket of a detection box of a mainstream test instrument on the test box in the prior art, the invention provides the optical fiber array dynamic imbibition tester convenient to operate and use.
The invention is realized by adopting the following technical scheme: the utility model provides an optical fiber array developments imbibition tester convenient to operation is used, includes the casing and accepts test box in the casing and be used for detecting the detection device of used liquid diffusion characteristic on the material sample that awaits measuring, be provided with the sample bracket that is used for bearing the weight of the material sample that awaits measuring on the test box and be used for fixing the sample bracket solid subassembly of pressing on the test box.
As a further improvement of the above scheme, the sample holder comprises a support plate, the top of the support plate is provided with a positioning bracket for placing the material sample to be measured, and the bottom of the support plate is provided with a through hole communicated with the positioning bracket; two opposite plate slots for inserting the two ends of the supporting plate are formed in two sides in the test box.
As a further improvement of the above scheme, the press fixing component comprises four first connecting rods, wherein every two of the four first connecting rods are grouped and respectively inserted into two sides of the box wall of the test box; two connecting rods I in each group are mutually symmetrical about the supporting plate;
every one end of connecting rod one stretches into in the test box to swivelling joint has a pendulum rod, the middle part of pendulum rod rotate be connected with one with the gag lever post that connecting rod one parallels, just the gag lever post is kept away from the one end of pendulum rod is fixed on the inside wall of test box, the one end rigid coupling that connecting rod one was kept away from to the pendulum rod has the compel to press the fixture block, seted up in the backup pad with compel to press fixture block matched with compel to press the draw-in groove.
As a further improvement of the above scheme, two sides of the test box are both rotatably provided with a screw rod perpendicular to the first connecting rod, the screw rod is sleeved with a sleeve matched with the screw rod in a threaded manner, and the screw threads on two axial sides of the screw rod are opposite in rotation direction; a disc is rotatably sleeved on the outer side of each sleeve; opposite sides of the two discs on each screw are provided with a runway-shaped limiting groove; the limiting groove is positioned on one side of the disc surface close to the supporting plate, and one end of the limiting groove is inclined and folded towards the center of the disc connected with the limiting groove; and the other end of each first connecting rod is provided with a limiting block in sliding clamping connection with the limiting groove.
As a further improvement of the above aspect, the outer peripheral side of the test box is provided with two fixing rings; two ends of each screw rod are respectively and vertically fixedly connected to the ring surfaces of the two fixing rings; a second connecting rod is arranged between each fixing ring and the test box;
the middle parts of the two screw rods are fixedly sleeved with belt wheels, one of the two belt wheels is oppositely arranged on the fixing ring, the four belt wheels are distributed in a square shape and are connected through a belt in a transmission manner, and a rocking handle is arranged on a wheel shaft of one of the belt wheels.
As a further improvement of the above solution, the detecting device comprises two groups of laser emitting assemblies mounted on one side of the testing box and symmetrical with respect to the sample holder, and coaxial reflectors and laser receiving assemblies are sequentially arranged above and below the sample holder along respective directions away from the sample holder; the test box is provided with a light transmission port for inputting laser beams into the test box;
the reflector reflects the laser beam emitted by the laser emission assembly on the corresponding surface of the material sample to be detected; the reflection angle of the laser beam on the reflector is ninety degrees; the laser receiving assembly is used for converting the laser beam reflected by the surface of the material sample to be detected into an electric signal;
the detection device also comprises a data processing device, and the data processing device is used for processing the electric signals and analyzing the diffusion characteristics of the used liquid on the material sample to be detected.
As a further improvement of the above scheme, the laser emission assembly sequentially comprises an optical fiber pulse laser, an optical fiber splitter and an emission lens; the optical fiber pulse laser is used for emitting narrow pulse infrared laser beams; the optical fiber branching unit is used for uniformly branching the emitted laser beams; the emission lens is used for contracting the split laser beam.
As a further improvement of the above scheme, the laser receiving assembly includes a receiving lens and a diode area array, and the receiving lens is used for refracting the laser beam reflected by the surface of the sample of the material to be measured to the diode area array; the diode area array is used for converting the laser beam refracted by the receiving lens into a corresponding electric signal.
As a further improvement of the scheme, a liquid storage tank and a peristaltic pump are installed in the test box, an input port of the peristaltic pump is communicated with an output port of the liquid storage tank, a liquid guide pipe is connected to an output port of the peristaltic pump, and one end of the liquid guide pipe penetrates through the top of the test box and sequentially penetrates through a diode area array, a receiving lens and a reflector which are located above the inside of the test box.
As a further improvement of the above scheme, the data processing device includes a data acquisition card connected to the diode area array and a data processor connected to the data acquisition card, and the data acquisition card receives the electrical signal and transmits the electrical signal to the data processor through a USB interface for corresponding analysis processing.
The invention has the beneficial effects that:
the optical fiber array dynamic imbibition tester convenient to operate and use can realize quick assembly and disassembly of the sample bracket in the detection box through the pressing and fixing component arranged on the detection box, and is convenient, quick, time-saving and labor-saving.
The invention relates to an optical fiber array dynamic imbibition tester convenient to operate and use, which improves the system light path of the traditional optical fiber array laser, can measure all liquids except high-volatility and high-corrosivity liquids, utilizes an optical fiber laser to emit incident laser, adopts an optical fiber branching unit of an optical fiber splicing technology to uniformly branch the laser, realizes uniform light intensity on the surface of a sample to be measured, can realize the coaxial axis of an emitting optical system and a receiving optical system through the special design of the emitting and receiving optical systems, drips on the surface of a thin sheet material, and changes the reflected light intensity received by the receiving optical system while the liquid is diffused, and converts the light intensity into a voltage signal. By observing the voltage signal change and referring to national standard research test indexes, the dynamic liquid absorption process of the material is quantitatively analyzed.
The optical fiber array dynamic imbibition tester convenient to operate and use can convert the existing principle of detecting transmitted light intensity into the principle of detecting reflected light intensity, and the light path systems can be arranged on the front side and the back side of a sample to be tested, so that the liquid diffusion characteristics of the front side and the back side can be detected.
Drawings
FIG. 1 is a schematic cross-sectional view of a fiber array dynamic imbibition tester convenient for operation and use according to example 1 of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the fiber array dynamic pipetting tester of FIG. 1 in another state;
FIG. 4 is an enlarged view of the structure at B in FIG. 3;
FIG. 5 is a schematic top view of the housing of FIG. 1;
fig. 6 is a schematic structural diagram of an end face of an optical fiber of the optical splitter in fig. 1.
Description of the main symbols:
1. a housing; 2. a test box; 3. a support plate; 4. positioning brackets; 5. a port; 6. a fiber pulse laser; 7. an optical fiber splitter; 8. an emission lens; 9. a reflective mirror; 10. a receiving lens; 11. a diode area array; 12. a catheter; 13. a light input port; 14. a liquid storage tank; 15. a peristaltic pump; 16. a data acquisition card; 17. a USB interface; 18. a swing rod; 19. pressing the clamping block; 20. a limiting rod; 21. pressing the clamping groove; 22. a first connecting rod; 23. a rod groove; 24. a screw; 25. a sleeve; 26. a disc; 27. a bearing; 28. a limiting groove; 29. a limiting block; 30. a pulley; 31. a fixing ring; 32. a second connecting rod; 33. a rocking handle; 34. and a board slot.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Referring to fig. 1 to 5, the optical fiber array dynamic liquid absorption tester convenient to operate and use includes a housing 1, a testing box 2 accommodated in the housing 1, and a detecting device for detecting the diffusion characteristic of the used liquid on the material sample to be tested, wherein a sample bracket for bearing the material sample to be tested and a press-fixing component for fixing the sample bracket on the testing box 2 are arranged on the testing box 2. The sample bracket can be conveniently mounted and dismounted on the test box 2 through the press-fixing component. The casing 1 may be a box body having a rectangular structure and a door. The test chamber 2 may have a rectangular structure and a chamber door to facilitate opening and closing of the test chamber 2.
The sample bracket comprises a supporting plate 3, a positioning bracket 4 for placing a material sample to be detected is arranged at the top of the supporting plate 3, and a through hole 5 for communicating the positioning bracket 4 is arranged at the bottom of the supporting plate 3. The opening 5 can make the bottom fretwork of location support groove 4 with the exposure of the material sample that will await measuring, conveniently detects the material sample bottom surface that awaits measuring. Two opposite plate slots 34 for inserting the two ends of the supporting plate 3 are formed in the two sides of the test box 2, and the plate slots 34 are in clamping fit with the supporting plate 3.
The press-fixing component comprises four connecting rods I22, and the four connecting rods I22 are grouped pairwise and respectively inserted into two sides of the box wall of the test box 2. The two links one 22 in each set are symmetrical to each other about the support plate 3. In this embodiment, the testing box 2 is provided with four rod grooves 23, the four rod grooves 23 correspond to the four first connecting rods 22, and the four first connecting rods 22 are slidably inserted in the four rod grooves 23. The first connecting rod 22 is perpendicular to the axial direction of the test box 2.
One end of each connecting rod I22 extends into the test box 2 and is rotatably connected with a swing rod 18, the middle part of the swing rod 18 is rotatably connected with a limiting rod 20 parallel to the connecting rod I22, and one end of the limiting rod 20 far away from the swing rod 18 is fixed on the inner side wall of the test box 2, so that the middle part of the swing rod 18 can rotate around the limiting rod 20, and the moving directions of the two ends of the swing rod 18 are opposite.
One end of the swing rod 18 far away from the first connecting rod 22 is fixedly connected with a pressing fixture block 19, and a pressing clamping groove 21 matched with the pressing fixture block 19 is formed in the supporting plate 3. When the first connecting rod 22 is pushed towards the inside of the test box 2 on the rod groove 23, the first connecting rod 22 can drive one end of the swing rod 18 to rotate, and the pressing fixture block 19 at the other end of the swing rod 18 rotates to the corresponding pressing fixture groove 21, so that the support plate 3 is installed and fixed in the test box 2. When the two first connecting rods 22 on the same side are pushed into the testing box 2 at the same time, the two pressing fixture blocks 19 on the same side can be pressed and fixed on the top surface and the bottom surface of the supporting plate 3 at the same time, and the stability and reliability are realized.
And two sides of the test box 2 are respectively and rotatably provided with a screw 24 vertical to the first connecting rod 22, the screw 24 is sleeved with a sleeve 25 in threaded fit with the screw, and the screw threads of the screw 24 on the two axial sides are opposite in rotating direction. The inner peripheral sides of the two sleeves 25 on each screw 24 are respectively provided with internal threads (not shown) corresponding to the thread turning directions on the screws 24, so that the two sleeves 25 are synchronously separated or synchronously close under the rotation of the screws 24 and under a certain limiting effect.
The outside of each sleeve 25 is rotatably fitted with a disc 26. Opposite sides of the two discs 26 on each screw 24 are provided with track-shaped retaining grooves 28. The limiting groove 28 is positioned on one side of the disc surface of the disc 26 close to the supporting plate 3, and one end of the limiting groove 28 is inclined and converged toward the center of the disc 26 connected with the limiting groove. The other end of each first connecting rod 22 is provided with a limiting block 29 which is in sliding clamping connection with the limiting groove 28.
The disc 26, the limiting groove 28, the limiting block 29, the first connecting rod 22 and the rod groove 23 can limit the sleeve 25 when driven by the screw 24, and prevent the sleeve 25 from rotating along with the screw 24, so that the sleeve 25 is kept moving in the axial direction of the screw 24. When the sleeve 25 drives the disc 26 to move synchronously in the axial direction of the screw 24, the disc 26 can drive the first driving link 22 to move in the rod groove 23 through the limiting groove 28 and the limiting block 29.
The outer peripheral side of the test chamber 2 is provided with two fixing rings 31 circumferentially. Two ends of each screw rod 24 are respectively and vertically fixed on the ring surfaces of the two fixing rings 31. A second connecting rod 32 is arranged between each fixing ring 31 and the test box 2, and the fixing ring 31 is fixed on the test box 2 through the second connecting rod 32.
The middle parts of the two screw rods 24 are fixedly sleeved with belt wheels 30, one fixing ring 31 is also oppositely provided with the two belt wheels 30, the four belt wheels 30 are in square distribution, the four belt wheels 30 are connected through a belt in a transmission way, and a rocking handle 33 is arranged on a wheel shaft of one belt wheel 30. One of the pulleys 30 is driven to rotate by the rocking handle 33, and the other three pulleys are driven to synchronously rotate by the pulley 30 and the belt, so that the two screws 24 are driven to synchronously rotate, and finally, the sample bracket inserted in the test box 2 is pressed and fixed.
The detection device is used for detecting the diffusion property of the liquid on the material sample to be detected. The diffusion properties on the material sample to be tested referred to in this example are as follows:
liquid arrival time: the first occurrence of a slope of tan15 or greater on the moisture content versus time curve.
Liquid absorption rate: rate of increase of water content of the material per unit time. The slope average value of the water content in the test time is on the water content change curve.
Maximum wetting distance: the farthest distance of the liquid from the liquid drop point at the boundary of the wetting area of the material surface.
Liquid diffusion speed: the distance the liquid travels in each direction is divided by the liquid arrival time.
Unidirectional transmission index: the ability of the liquid to transfer from the upper surface to the lower surface of the material is expressed as the difference in the amount of liquid absorbed on both sides of the material compared to the test time.
Liquid dynamic transfer integrated index: characterization of the dynamic transfer combination properties of liquid in the material. Expressed as weighted values of the wicking rate, the unidirectional transfer index, and the liquid diffusion rate of the lower surface of the material.
The detection device comprises two groups of laser emission components which are arranged on one side of the test box 2 and are symmetrical relative to the sample bracket, and coaxial reflectors 9 and laser receiving components are sequentially arranged above and below the sample bracket along the directions respectively far away from the sample bracket. The test box 2 is provided with a light transmission port 13 for inputting laser beams into the test box 2.
The reflector 9 reflects the laser beam emitted by the laser emitting assembly on the corresponding surface of the material sample to be measured. The reflection angle of the laser beam on the mirror 9 is ninety degrees. The laser receiving assembly is used for converting laser beams reflected by the surface of the material sample to be detected into electric signals.
The detection device also comprises a data processing device, and the data processing device is used for processing the electric signals and analyzing the diffusion characteristics of the used liquid on the material sample to be detected.
In summary, the detection method of the detection device sequentially includes the following steps:
step S1: placing a material sample to be detected on a sample bracket, and judging whether the thickness of the material sample to be detected is greater than a preset value;
step S2: if the thickness of the material sample to be tested is less than or equal to a preset value, dropping test liquid on the surface of the material to be tested; firstly, after a laser emission component positioned above a material sample to be tested in a test box emits laser beams into the test box, then the laser emission component positioned below the material sample to be tested in the test box emits laser beams into the test box;
step S3: after being reflected to the surface of a material sample to be detected by a reflector, laser beams are reflected on the surface of the material sample and are received in a laser receiving assembly;
step S4: the data processing device converts the laser beam received by the laser receiving assembly into an electric signal and processes and analyzes the diffusion characteristic of the used liquid on the material sample to be detected.
In step S2, if the thickness of the material sample to be tested is greater than the predetermined value, the testing liquid is dropped onto the surface of the material to be tested, so that the laser emitting assemblies above and below the material sample to be tested in the testing box emit laser beams into the testing box at the same time.
The laser emission component comprises a fiber pulse laser 6, a fiber splitter 7 and an emission lens 8 in sequence. The fiber pulse laser 6 is used to emit a narrow pulse infrared laser beam. The optical fiber splitter 7 is used for uniformly splitting the emitted laser beam. The emission lens 8 is used for contracting the split laser beam.
The laser receiving assembly comprises a receiving lens 10 and a diode area array 11, and the diodes of the diode area array 11 need to be coaxial with the light reflected by the surface of the sample, so the relation between the laser fiber arrangement and the object image needs to be considered.
The receiving lens 10 is used for refracting the laser beam reflected by the surface of the material sample to be measured to the diode area array 11. The diode area array 11 is used for converting the laser beam refracted by the receiving lens 10 into a corresponding electric signal.
The fiber pulse laser 6, the fiber splitter 7 and the transmitting lens 8 in the embodiment are all installed in the casing 1 through corresponding brackets, and the reflective mirror 9, the receiving lens 10 and the diode area array 11 are all installed in the test box 2 through corresponding brackets.
Further, the specific working mode of the optical path of the optical fiber array dynamic liquid absorption tester of the embodiment is specifically that, when the diffusion characteristic of liquid on a material sample to be tested needs to be measured, the material sample to be tested is placed on the sample bracket, the test box 2 and the box door on the shell are closed, and the liquid in the liquid storage tank is conveyed to the top in the test box 2 through the peristaltic pump, so that the liquid drops on the material sample to be tested, and the liquid is expanded on the surface of the test sample immediately. The narrow-pulse infrared laser beam is emitted by the optical fiber pulse laser 6, the laser beam passes through the optical fiber branching unit 7, one path of laser is uniformly divided into multiple paths of laser according to energy, each path of laser beam is emitted from the optical fiber array of the optical fiber branching unit 7, the end face of the optical fiber array of the optical fiber branching unit 7 is changed into a dot matrix pulse laser source, the divergent laser beam can be changed into a contracted laser beam through the emitting lens 8, the contracted laser beam is reflected by the reflecting mirror 9 and rotates 90 degrees to irradiate the surface of a material sample to be tested, the light reflected from the surface of the sample is changed due to the expansion of liquid, and the reflected light is refracted by the receiving lens and then is received by the diode area array at the top of the box body of the test area and is converted into an electric signal. The same test laser is arranged at the lower half part of the test area, so that the upper surface and the lower surface can be simultaneously measured when liquid expands. And the data acquisition card at the bottom of the test area transmits the collected electric signals to a computer in real time through a USB interface so as to acquire the diffusion characteristic of the liquid on the material sample.
Because the coupling between the single mode fiber and the optical device is relatively difficult, the present embodiment uses the multimode fiber, and the outer diameter of the fiber is 125um, and the wavelength should be selected according to the liquid to be measured. The wavelength of water is measured at 980nm, and the wavelength of oil is measured at 1100 nm. Other liquids also need to be determined experimentally.
Referring to fig. 6, the optical fibers may be arranged in a square configuration with a core pitch of 125 μm to form an optical fiber array, which serves as an exit end face of the system, and the other end of each optical fiber is connected to a fiber splitter 7 by a standard FT/APC splice. When the whole equipment is designed, the fiber core space can be adjusted according to the fineness of the optical fibers, and the compatibility between the arrangement of the optical fibers and the arrangement of the diode area array 11 can be determined by the relationship between two groups of object images in the system, namely: the luminous point on the optical fiber array and the illuminated point on the surface of the material sample to be detected form a group of object-image relations; the illuminated point on the surface of the material sample to be measured and the pixel point on the diode area array 11 are in another group of object image relationship.
The fiber laser emits incident laser, the laser is uniformly split by the fiber splitter 7 of the fiber splicing technology, uniform light intensity on the surface of a sample to be detected is realized, and the optical axis sharing of the emitting optical system and the receiving optical system can be realized through special design of the emitting optical system and the receiving optical system. This method produces a more uniform intensity distribution of light than widely used microlens array techniques.
After the light path design is finished, in order to verify whether the light path design achieves the purpose of our people, ANSYS SPEOS is used for optical simulation, the light intensity of the surface to be measured and the optical axis of the transmitted and reflected light are simulated, and the purpose that the light intensity and the optical axis of the transmitted and reflected light are close to each other is finally achieved by repeatedly adjusting the simulation and the experimental light path design.
Since the electrical signals received by the diode area array may be very weak (which is related to the measurement of liquid, material surface condition and transmission power), and need to be amplified, a transgroup amplifier and a broadband amplifier are additionally arranged for the purpose. The other purpose of the design of the optical path of the system is to change the existing principle of detecting the intensity of the transmitted light into the principle of detecting the intensity of the reflected light. The optical path system can be arranged on the front side and the back side of a sample to be detected, and the liquid diffusion characteristics of the front side and the back side can be detected. It should be noted that when testing a thin sample, the lasers above and below the sample may interfere with each other, which may affect the test result. It may be necessary for this problem to perform the tests on the sample separately from the following tests. Therefore, a large number of experiments are required for the type and thickness of the sample.
The test chamber 2 houses a reservoir 14 and a peristaltic pump 15, the type of which is selected according to the diameter of the tube (possibly related to the viscosity of the fluid). An input port of the peristaltic pump 15 is communicated with an output port of the liquid storage tank 14, a liquid guide pipe 12 is connected to an output port of the peristaltic pump 15, and one end of the liquid guide pipe 12 penetrates through the top of the test box 2 and sequentially penetrates through the diode area array 11, the receiving lens 10 and the reflector 9 which are positioned above the inside of the test box 2. Notches (not shown) for the liquid guide tube 12 to penetrate through are pre-arranged on the diode area array 11, the receiving lens 10 and the reflective mirror 9 at the upper part in the test box 2, so that the used liquid can accurately drip on a material sample to be tested through the liquid guide tube 12.
The data processing device comprises a data acquisition card 16 connected to the diode area array 11 and a data processor connected to the data acquisition card 16, wherein the data acquisition card 16 receives the electric signals and transmits the electric signals to the data processor through a USB interface for corresponding analysis processing. The data processor in this embodiment may be a computer. The data acquisition card 16 is connected to a computer through a USB interface 17, so that the electrical signals acquired by the data acquisition card are transmitted to the computer for corresponding analysis and processing.
Example 2
In this embodiment 2, in order to verify whether the fiber array dynamic liquid absorption tester of this embodiment meets the requirements of the experimental equipment, a specific experimental equipment testing scheme is as follows:
first, repeated tests were performed using water as the test liquid and paper as the test material sample. And simultaneously determining the thickness of the paper and the measuring mode, wherein the upper surface and the lower surface can be simultaneously measured when the thickness of the paper is greater than a certain fixed value, otherwise, the upper surface and the lower surface are required to be respectively tested, namely: the incident laser light in the lower half of the test area was first turned off and only the spread of liquid over the paper was measured. The same paper is then taken to measure only the following diffusion and the test index is calculated therefrom.
Secondly, the kind of liquid and the kind of material to be tested are changed, and repeated tests are carried out.
Finally, the test is carried out in comparison with the national standard GB/T21655.2-2009. Because only water can be tested in the national standard, water is also used as test liquid in the comparison experiment, and if the test result is close to the national standard, the experimental equipment can be considered to meet the requirements.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an optical fiber array developments imbibition tester convenient to operation is used which characterized in that, includes the casing and accepts test box in the casing and be used for detecting the detection device of used liquid diffusion characteristic on the material sample that awaits measuring, be provided with the sample bracket that is used for bearing the material sample that awaits measuring on the test box and be used for fixing the sample bracket the solid subassembly of pressure on the test box.
2. The fiber array dynamic liquid suction tester convenient to operate and use as claimed in claim 1, wherein the sample holder comprises a support plate, the top of the support plate is provided with a positioning bracket for placing the material sample to be tested, and the bottom of the support plate is provided with a through hole communicated with the positioning bracket; two opposite plate slots for inserting the two ends of the supporting plate are formed in two sides in the test box.
3. The fiber array dynamic imbibition tester of claim 2 wherein said consolidation unit comprises four links one, two by two of said four links being grouped and respectively inserted on both sides of the wall of said test chamber; two connecting rods I in each group are mutually symmetrical about the supporting plate;
every one end of connecting rod one stretches into in the test box to swivelling joint has a pendulum rod, the middle part of pendulum rod rotate be connected with one with the gag lever post that connecting rod one parallels, just the gag lever post is kept away from the one end of pendulum rod is fixed on the inside wall of test box, the one end rigid coupling that connecting rod one was kept away from to the pendulum rod has the compel to press the fixture block, seted up in the backup pad with compel to press fixture block matched with compel to press the draw-in groove.
4. The fiber array dynamic imbibition tester convenient to operate and use as claimed in claim 3, wherein, a screw rod perpendicular to the first connecting rod is rotatably arranged on both sides of the testing box, a sleeve matched with the screw rod is sleeved on the screw rod, and the screw rod has opposite screw thread directions on both axial sides of the screw rod; a disc is rotatably sleeved on the outer side of each sleeve; opposite sides of the two discs on each screw are provided with a runway-shaped limiting groove; the limiting groove is positioned on one side of the disc surface close to the supporting plate, and one end of the limiting groove is inclined and folded towards the center of the disc connected with the limiting groove; and the other end of each first connecting rod is provided with a limiting block in sliding clamping connection with the limiting groove.
5. An operationally convenient fiber array dynamic pipetting tester as recited in claim 4 wherein the outer peripheral side of said chamber is circumferentially provided with two retaining rings; two ends of each screw rod are respectively and vertically fixedly connected to the ring surfaces of the two fixing rings; a second connecting rod is arranged between each fixing ring and the test box;
the middle parts of the two screw rods are fixedly sleeved with belt wheels, one of the two belt wheels is oppositely arranged on the fixing ring, the four belt wheels are distributed in a square shape and are connected through a belt in a transmission manner, and a rocking handle is arranged on a wheel shaft of one of the belt wheels.
6. An operatively convenient fibre-optic array dynamic imbibition tester as claimed in any one of claims 1 to 5, wherein said detection means includes two sets of laser emitting assemblies mounted on one side of said test chamber and symmetrical about said sample holder, and coaxial mirror and laser receiving assemblies are provided above and below said sample holder in sequence, each in a direction away from said sample holder; the test box is provided with a light transmission port for inputting laser beams into the test box;
the reflector reflects the laser beam emitted by the laser emission assembly on the corresponding surface of the material sample to be detected; the reflection angle of the laser beam on the reflector is ninety degrees; the laser receiving assembly is used for converting the laser beam reflected by the surface of the material sample to be detected into an electric signal;
the detection device also comprises a data processing device, and the data processing device is used for processing the electric signals and analyzing the diffusion characteristics of the used liquid on the material sample to be detected.
7. The fiber array dynamic imbibition tester of claim 6 wherein said laser firing assembly comprises, in order, a fiber pulse laser, a fiber splitter, and a firing lens; the optical fiber pulse laser is used for emitting narrow pulse infrared laser beams; the optical fiber branching unit is used for uniformly branching the emitted laser beams; the emission lens is used for contracting the split laser beam.
8. The fiber optic array dynamic imbibition tester of claim 6 wherein said laser receiving assembly comprises a receiving lens and a diode area array, said receiving lens being adapted to refract a laser beam reflected from a surface of a material sample to be tested to said diode area array; the diode area array is used for converting the laser beam refracted by the receiving lens into a corresponding electric signal.
9. The fiber array dynamic imbibition tester convenient to operate and use as claimed in claim 8, wherein a liquid storage tank and a peristaltic pump are installed in the test box, an input port of the peristaltic pump is communicated with an output port of the liquid storage tank, a liquid guide pipe is connected to an output port of the peristaltic pump, and one end of the liquid guide pipe penetrates through the top of the test box and sequentially penetrates through the diode area array, the receiving lens and the reflector which are positioned above the inside of the test box.
10. The fiber array dynamic liquid suction tester convenient for operation and use according to claim 6, wherein the data processing device comprises a data acquisition card connected to the diode area array and a data processor connected to the data acquisition card, and the data acquisition card receives the electrical signals and transmits the electrical signals to the data processor through a USB interface for corresponding analysis and processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110768544.2A CN113281227B (en) | 2021-07-07 | 2021-07-07 | Optical fiber array dynamic imbibition tester convenient to operate and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110768544.2A CN113281227B (en) | 2021-07-07 | 2021-07-07 | Optical fiber array dynamic imbibition tester convenient to operate and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113281227A true CN113281227A (en) | 2021-08-20 |
| CN113281227B CN113281227B (en) | 2023-09-15 |
Family
ID=77286586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110768544.2A Active CN113281227B (en) | 2021-07-07 | 2021-07-07 | Optical fiber array dynamic imbibition tester convenient to operate and use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113281227B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335143A (en) * | 1989-07-03 | 1991-02-15 | Nippon Kamiparupu Kenkyusho:Kk | Liquid absorptivity testing machine and testing method thereof |
| JP2003042926A (en) * | 2001-07-26 | 2003-02-13 | National Institute Of Advanced Industrial & Technology | Method and instrument for measuring adsorption layer of biomolecule |
| CN104266942A (en) * | 2013-05-10 | 2015-01-07 | 中华人民共和国南通出入境检验检疫局 | Method for testing moisture absorptivity of polyester fabric subjected to anti-ultraviolet moisture-absorption quick-drying differentiated finishing |
| CN204649573U (en) * | 2015-05-22 | 2015-09-16 | 张家港市德宝化工有限公司 | A kind of measurement mechanism for measuring fabric moisture diffusion |
| CN205323792U (en) * | 2016-01-30 | 2016-06-22 | 浪潮电子信息产业股份有限公司 | High-temperature test box |
| CN106706472A (en) * | 2016-11-28 | 2017-05-24 | 东华大学 | Fabric dynamic moisture absorption performance testing device and method |
| CN110274851A (en) * | 2019-05-20 | 2019-09-24 | 东华大学 | A kind of textile material anisotropy characterizing method and measuring device |
| CN110967280A (en) * | 2018-09-28 | 2020-04-07 | 财团法人工业技术研究院 | Surface wettability detection system and surface wettability detection method |
| CN211086083U (en) * | 2019-09-20 | 2020-07-24 | 巨石攀登电子基材有限公司 | Glass fiber cloth contains soaks nature testing arrangement |
| WO2020232605A1 (en) * | 2019-05-20 | 2020-11-26 | 深圳迈瑞生物医疗电子股份有限公司 | Sample analysis apparatus and liquid absorption control method |
| CN212723128U (en) * | 2020-05-28 | 2021-03-16 | 山东省医疗器械产品质量检验中心 | Electrical apparatus aging test case |
| CN112666204A (en) * | 2020-12-21 | 2021-04-16 | 快思瑞科技(上海)有限公司 | Thermal expansion foaming tester and testing method thereof |
| CN112903539A (en) * | 2021-03-29 | 2021-06-04 | 清华大学深圳国际研究生院 | Imaging detection device and method for diffusion coefficient of electrolyte of flow battery |
-
2021
- 2021-07-07 CN CN202110768544.2A patent/CN113281227B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0335143A (en) * | 1989-07-03 | 1991-02-15 | Nippon Kamiparupu Kenkyusho:Kk | Liquid absorptivity testing machine and testing method thereof |
| JP2003042926A (en) * | 2001-07-26 | 2003-02-13 | National Institute Of Advanced Industrial & Technology | Method and instrument for measuring adsorption layer of biomolecule |
| CN104266942A (en) * | 2013-05-10 | 2015-01-07 | 中华人民共和国南通出入境检验检疫局 | Method for testing moisture absorptivity of polyester fabric subjected to anti-ultraviolet moisture-absorption quick-drying differentiated finishing |
| CN204649573U (en) * | 2015-05-22 | 2015-09-16 | 张家港市德宝化工有限公司 | A kind of measurement mechanism for measuring fabric moisture diffusion |
| CN205323792U (en) * | 2016-01-30 | 2016-06-22 | 浪潮电子信息产业股份有限公司 | High-temperature test box |
| CN106706472A (en) * | 2016-11-28 | 2017-05-24 | 东华大学 | Fabric dynamic moisture absorption performance testing device and method |
| CN110967280A (en) * | 2018-09-28 | 2020-04-07 | 财团法人工业技术研究院 | Surface wettability detection system and surface wettability detection method |
| CN110274851A (en) * | 2019-05-20 | 2019-09-24 | 东华大学 | A kind of textile material anisotropy characterizing method and measuring device |
| WO2020232605A1 (en) * | 2019-05-20 | 2020-11-26 | 深圳迈瑞生物医疗电子股份有限公司 | Sample analysis apparatus and liquid absorption control method |
| CN211086083U (en) * | 2019-09-20 | 2020-07-24 | 巨石攀登电子基材有限公司 | Glass fiber cloth contains soaks nature testing arrangement |
| CN212723128U (en) * | 2020-05-28 | 2021-03-16 | 山东省医疗器械产品质量检验中心 | Electrical apparatus aging test case |
| CN112666204A (en) * | 2020-12-21 | 2021-04-16 | 快思瑞科技(上海)有限公司 | Thermal expansion foaming tester and testing method thereof |
| CN112903539A (en) * | 2021-03-29 | 2021-06-04 | 清华大学深圳国际研究生院 | Imaging detection device and method for diffusion coefficient of electrolyte of flow battery |
Non-Patent Citations (1)
| Title |
|---|
| 高旭;丁宁;李金环;王玉婷;: "基于光纤位移测量的透明液体折射率测量方法", 光电子・激光, no. 12, pages 61 - 69 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113281227B (en) | 2023-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5078099B2 (en) | Optical fiber device for detecting light scattering to differentiate blood cells and the like | |
| US6014204A (en) | Multiple diameter fiber optic device and process of using the same | |
| US7499161B2 (en) | Depth-resolved spectroscopy method and apparatus | |
| RU94019480A (en) | Method of determination of measurands and device for its accomplishment | |
| WO2017000364A1 (en) | Probe sensing method and apparatus based on optical beam scanning confocal detection technique | |
| PT1882178E (en) | Improved reversible, low cost, distributed optical fiber sensor with high spatial resolution | |
| CN108489902A (en) | A kind of the optical-fiber laser miniflow detector and detection method of high duplication | |
| CN206208755U (en) | Sonde-type refractive index sensing device based on photonic crystal fiber | |
| CN101634629A (en) | Cancer cell detection method based on optical stretching and optical fiber interference sensing technology | |
| CN101290288B (en) | Wavelength selector | |
| CN107153049B (en) | A kind of material refractive index measuring device inhibiting stray light | |
| CN113281227B (en) | Optical fiber array dynamic imbibition tester convenient to operate and use | |
| US20100087739A1 (en) | Apparatus for optical body analysis | |
| CN106802232A (en) | A kind of microcobjective numerical aperture measuring method and system based on total reflection | |
| CN208537398U (en) | A kind of diffusing reflection collection system based on multiple light courcess | |
| CN216622169U (en) | Skin tissue spectrum detection device based on fluorescence and Raman fusion technology | |
| CN113514368A (en) | Optical fiber array dynamic imbibition tester | |
| CN112147044A (en) | Spectrum subdivision type optical fiber distributed detection device for flow cytometer | |
| CN204807451U (en) | Detection apparatus for laser induction liquid fluorescence | |
| US20230112077A1 (en) | Device and method for characterising the roughness profile of a tissue sample | |
| CN109115727A (en) | A kind of surface plasma resonance biological sensing detection device of multichannel | |
| US9186064B2 (en) | Internal optical spectroscope and method for real time in-situ diagnosis in living cells | |
| CN202145194U (en) | LED induced fluorescence detection device | |
| TWI801937B (en) | Optical biological detection device | |
| US11684266B2 (en) | Probe for optical spectroscopy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |