CN106645426A - Limiting and constant pressure-maintaining device for optical fiber type attenuated total reflection probe - Google Patents
Limiting and constant pressure-maintaining device for optical fiber type attenuated total reflection probe Download PDFInfo
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- CN106645426A CN106645426A CN201611055437.0A CN201611055437A CN106645426A CN 106645426 A CN106645426 A CN 106645426A CN 201611055437 A CN201611055437 A CN 201611055437A CN 106645426 A CN106645426 A CN 106645426A
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- optical fiber
- end lid
- probe
- main body
- spring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/24—Probes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to a limiting and constant pressure-maintaining device for an optical fiber type attenuated total reflection probe. The device comprises a sleeve upper end cover, a sleeve main body, a sleeve lower end cover, a spring-loaded disc and a spring, wherein the sleeve main body is in a hollow cylinder shape; the upper end and the lower end of the sleeve main body are respectively connected with the sleeve upper end cover and the sleeve lower end cover; the spring-loaded disc is in a cylinder shape, a hole is formed in the middle of the spring-loaded disc, and the shape of the hole is matched with that of the optical fiber type attenuated total reflection probe; the spring-loaded disc is arranged in the sleeve main body; the spring sleeves the optical fiber type attenuated total reflection probe, one end of the spring is connected with the lower surface of the sleeve upper end cover, and the other end of the spring is connected with the upper surface of the spring-loaded disc. The limiting and constant pressure-maintaining device can constrain the displacement of the probe by using the sleeve upper end cover and the sleeve main body so as to enable the probe to move only along the vertical direction without skewing and further prevent the poor contact between the probe and the surface of a sample to be tested, and guarantees the constancy and repeatability of pressure.
Description
Technical field
The present invention relates to a kind of spacing constant voltage equipment for optical fiber type attenuated total reflectance probe, specifically a kind of to optical fiber
Formula attenuated total reflectance probe is limited with the contact angle on sample surface, and enables probe with permanent lower pressure and sample
The device of surface contact.
Background technology
FTIR spectrum technology allows people to be analyzed the infrared absorption spectrum of sample, so as to sample sets
Part is explored.Popped one's head in by using optical fiber attenuation total reflection, can be by infrared light from desk-top Fourier infrared spectrograph
It is drawn out on sample, and return light is imported the detector of Fourier infrared spectrograph again, it is possible to achieve to sample
In situ detection.When carrying out spectrum analyses to sample using optical fiber attenuation total reflection probe, need to ensure probe tip face and sample
Product surface is fully contacted.This requires to limit probe tip face with the contact angle of sample surfaces, and applies on probe
Pressure is just descended perpendicular to contact surface.In actual applications, measure if applying lower pressure using hand-held mode, using people
Member tends not to precise control to the pressure that probe applies, and possible inclination of popping one's head in causes probe tip face not have with sample surfaces
It is fully contacted, causes measurement result fluctuation larger.If additionally, testee has strict demand (for example to the suffered external force upper limit
Irreversible damage etc. can occur more than pressure threshold), pressure will be applied to user of service and propose very big test.And it is probe
One highly reliable constant pressure stopping means is provided, can be with the effectively solving problem.
The constant pressure stopping means for optical fiber attenuation total reflection probe are there is no at present.And can in the existing of other field
There is provided the device of constant pressure generally has following several major programmes：
Scheme 1：The hydraulic pressure produced using the liquid of sealing provides constant pressure.The program is commonly available to heavy-duty machinery etc.
Field, device size often than larger, is not suitable for small size high accuracy occasion.
Scheme 2：Isobarically Control is realized using mechanical transmission mechanism and motor.By giving for programming Control motor
Input, is allowed to produce controllable pressure.The program needs circuit control and programming realization, and equipment is relative complex.
Scheme 3：The principle repelled each other using the magnetic material same sex, controls the distance of two Magnet so as to produce by feedback device
The constant repulsive force of life, so as to realize constant pressure.The same program needs to increase suitable feed back control system, realizes complicated
Degree is higher.
Therefore, in high accuracy, under the detection scene of miniaturization, need one kind to provide constant pressure for probe spacing, and knot
Structure is simple, the device of high precision.
The content of the invention
The technical problem to be solved is to overcome above-mentioned the deficiencies in the prior art, there is provided one kind declines for optical fiber type
Subtract the spacing constant voltage equipment of total reflection probe, by the contact with sample surface of optical fiber attenuation total reflection probe distal end face
Angle is limited, and applies the constant device for just descending pressure to the contact surface of probe distal end face and sample surfaces.The device
Simple structure, it is reliable and stable, and the lower pressure for being applied can be adjusted.
In order to solve the above problems, the technical solution of the present invention is：
A kind of spacing constant voltage equipment for optical fiber type attenuated total reflectance probe, including：Sleeve upper end lid, sleeve pipe master
Body, its lower end lid, spring load disk and spring；
Described casing main body is hollow cylinder, the upper and lower ends of the casing main body respectively with described sleeve pipe upper end cover
Son and its lower end lid connect,
Described spring load disk is cylinder, and central aperture, shape and the optical fiber attenuation total reflection probe in hole
Profile matches, and the spring load disk is placed in casing main body；
The central aperture of described sleeve pipe upper end lid and its lower end lid, shape and the optical fiber attenuation total reflection in hole are popped one's head in
Profile match, the sound end of optical fiber attenuation total reflection probe sequentially passes through described pipe upper end lid, spring, spring load
Disk and its lower end lid, and the bottom that the spring load disk is popped one's head in optical fiber attenuation total reflection is fixedly linked；
The spring housing is on optical fiber attenuation total reflection is popped one's head in, and one end is connected with the lower surface of sleeve upper end lid, another
End is connected with the upper surface of spring load disk.
Described spring load disk is close contact with optical fiber attenuation total reflection probe；Optical fiber attenuation total reflection is popped one's head in and set
Pipe upper end lid, its lower end lid are sliding contact；Spring load disk is sliding contact with casing main body inwall.
The described external diameter of spring load disk matches with the internal diameter of casing main body.
Described spring load disk is visited by screw in the horizontal direction or glue with optical fiber attenuation total reflection
Head is fixed.
Described sleeve upper end lid can be adjusted with the relative position of casing main body by revoling tube upper end lid；
After regulation is finished, locked using the fastening screw on sleeve upper end lid.
Described its lower end lid and casing main body is fixed by screw or glue.
The material of described sleeve upper end lid, casing main body, its lower end lid and spring load disk be metal or
Duroplastss etc. are difficult the material of deformation.
Before measurement, spring is withstood probe by spring load disk, makes probe distal end face (the measurement end face popped one's head in)
Expose sleeve pipe；During measurement, the hand-held casing main body of user on sample, and pushes probe distal end face pressure, until probe
Expose sleeve portion to be pressed in sleeve pipe.Now, probe distal end is f=kL in the face of the lower pressure of sample, and wherein k is high-precision
The coefficient of elasticity of degree spring, L is the contracted length of high accuracy spring.
Compared with existing design scheme, the invention has the advantages that：
(1) in measurement, probe distal end face is concordant with the lower surface of its lower end lid, and the following table of its lower end lid
Face and the flush of sample, it is ensured that probe distal end face and the flush of test sample product, are fully contacted both；
(2) row constraint is entered to the displacement popped one's head in by sleeve upper end lid and casing main body, it is ensured that probe can only be vertical
Side move up, will not run-off the straight, cause and the loose contact of sample surface；
(3) probe distal end determines in the face of the pressure that just descends on sample surface by the decrement of pop one's head in displacement namely spring,
The power not applied on casing main body by operator is affected, it is ensured that the constant and repeatability of pressure；
(4) decrement of high accuracy spring, therefore the pressure that spring applies to probe are adjusted by tuning sleeve upper end lid
Power can with application scenarios different flexible.
Description of the drawings
Fig. 1 is structural representation of the present invention for the spacing constant voltage equipment of optical fiber type attenuated total reflectance probe；
Fig. 2 is course of work schematic diagram of the present invention for the spacing constant voltage equipment of optical fiber type attenuated total reflectance probe, its
In, it is (a) state before test sample, it is (b) state among test sample.
In figure：1- sleeve upper end lids, 2- casing main bodies, 3- its lower end lids, 4- spring load disks, 5- springs,
6- fastening screws, 7- optical fiber attenuation total reflections probe, 8- samples.
Specific embodiment
With reference to the accompanying drawings and examples the invention will be further described, but should not limit protection model of the invention with this
Enclose.
Fig. 1 is referred to, Fig. 1 is structural representation of the present invention for the spacing constant voltage equipment of optical fiber type attenuated total reflectance probe
Figure, as illustrated, a kind of spacing constant voltage equipment for optical fiber type attenuated total reflectance probe, including sleeve upper end lid 1, sleeve pipe
Main body 2, its lower end lid 3, spring load disk 4, spring 5 and fastening screw 6.Spring load disk 4 is enclosed within optical fiber attenuation
Total reflection 7 bottoms of probe are simultaneously fixed by screw in the horizontal direction or glue with probe, and both are close contact, i.e., and two
There is no relative displacement between person；Spring 5 is enclosed within optical fiber attenuation total reflection probe top, and three is placed in inside casing main body 2；Set
The upper and lower ends of pipe main body 2 connect respectively at sleeve upper end lid 1 and its lower end lid 3；Optical fiber attenuation total reflection probe 7 and set
Pipe upper end lid 1, its lower end lid 3 is sliding contact；Spring load disk 4 with the inwall of casing main body 2 be sliding contact.
Sliding contact refers to that both diameters are differed between 0.01 to 0.05mm.So optical fiber attenuation total reflection probe 7 can be vertical
Direction moves up and down, and the movement of horizontal direction is then by operative constraint.
In the present embodiment, sleeve upper end lid 1, casing main body 2, its lower end lid 3, the material of spring load disk 4
It is rustless steel.
As shown in Fig. 2 before measurement, high-precision spring 5 passes through spring load disk 4 by optical fiber attenuation total reflection probe 7
Withstand, make optical fiber attenuation total reflection probe 7 front ends (measurement end popped one's head in) expose sleeve pipe.During measurement, the hand-held sleeve pipe of user
Main body 2 is pressed in probe distal end on testee, and pushes, until optical fiber attenuation total reflection probe 7 exposes sleeve portion and pressed
Enter in sleeve pipe.Now, probe distal end is f=kL to the lower pressure of testee, and wherein k is the coefficient of elasticity of high accuracy spring 5,
L is the contracted length of high accuracy spring 5.After optical fiber attenuation total reflection probe 7 is entirely retracted to sleeve pipe, due to the restriction of sleeve pipe,
7 positions of optical fiber attenuation total reflection probe no longer change, so that it is guaranteed that the lower pressure being applied on optical fiber attenuation total reflection probe 7 is permanent
It is fixed constant.When probe is moved up and down, the displacement of its horizontal direction is mainly constrained by spring load disk 4 with sleeve upper end lid 1,
Therefore spring load disk 4 should have certain thickness with sleeve upper end lid 1, and prevent from popping one's head in rocking in the horizontal direction.
Claims (7)
1. it is a kind of for optical fiber type attenuated total reflectance probe spacing constant voltage equipment, it is characterised in that include：Sleeve upper end lid
(1), casing main body (2), its lower end lid (3), spring load disk (4) and spring (5)；
Described casing main body (2) is hollow cylinder, the upper and lower ends of the casing main body (2) respectively with described sleeve pipe upper end
Lid (1) and its lower end lid (3) connect,
Described spring load disk (4) is cylinder, and central aperture, and shape and the optical fiber attenuation total reflection in hole pop one's head in (7)
Profile match, the spring load disk (4) is placed in casing main body (2)；
Described sleeve pipe upper end lid (1) and the central aperture of its lower end lid (3), shape and the optical fiber attenuation total reflection in hole are visited
The profile of head (7) matches, and the sound end of optical fiber attenuation total reflection probe (7) sequentially passes through described pipe upper end lid (1), bullet
Spring (5), spring load disk (4) and its lower end lid (3), and the spring load disk (4) and optical fiber attenuation total reflection
The bottom of probe (7) is fixedly linked；
The spring (5) is enclosed within optical fiber attenuation total reflection probe (7), and one end is connected with the lower surface of sleeve upper end lid (1),
The other end is connected with the upper surface of spring load disk (4).
2. it is according to claim 1 for optical fiber type attenuated total reflectance probe spacing constant voltage equipment, it is characterised in that institute
The spring load disk (4) stated is close contact with optical fiber attenuation total reflection probe (7)；Optical fiber attenuation total reflection is popped one's head in (7) and set
Pipe upper end lid (1), its lower end lid (3) are sliding contact；Spring load disk (4) is cunning with casing main body (2) inwall
Dynamic contact.
3. it is according to claim 1 for optical fiber type attenuated total reflectance probe spacing constant voltage equipment, it is characterised in that institute
The external diameter of the spring load disk (4) stated matches with the internal diameter of casing main body (2).
4. it is according to claim 1 for optical fiber type attenuated total reflectance probe spacing constant voltage equipment, it is characterised in that institute
The spring load disk (4) stated is solid with optical fiber attenuation total reflection probe (7) by screw in the horizontal direction or glue
It is fixed.
5. it is according to claim 1 for optical fiber type attenuated total reflectance probe spacing constant voltage equipment, it is characterised in that institute
The sleeve upper end lid (1) stated can be adjusted with the relative position of casing main body (2) by revoling tube upper end lid (1)；
After regulation is finished, locked using the fastening screw (6) on sleeve upper end lid (1).
6. it is according to claim 1 for optical fiber type attenuated total reflectance probe spacing constant voltage equipment, it is characterised in that institute
Its lower end lid (3) and casing main body (2) stated is fixed by screw or glue.
7. according to the arbitrary described spacing constant voltage equipment for optical fiber type attenuated total reflectance probe of claim 1-6, its feature
It is, the material of described sleeve upper end lid (1), casing main body (2), its lower end lid (3) and spring load disk (4)
For metal or duroplastss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055437.0A CN106645426A (en) | 2016-11-25 | 2016-11-25 | Limiting and constant pressure-maintaining device for optical fiber type attenuated total reflection probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055437.0A CN106645426A (en) | 2016-11-25 | 2016-11-25 | Limiting and constant pressure-maintaining device for optical fiber type attenuated total reflection probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106645426A true CN106645426A (en) | 2017-05-10 |
Family
ID=58812029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611055437.0A Pending CN106645426A (en) | 2016-11-25 | 2016-11-25 | Limiting and constant pressure-maintaining device for optical fiber type attenuated total reflection probe |
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| Country | Link |
|---|---|
| CN (1) | CN106645426A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728041A (en) * | 2017-10-11 | 2018-02-23 | 李贺满 | A kind of electronic circuit board electric property detection device |
| CN113030279A (en) * | 2021-03-31 | 2021-06-25 | 南京工业大学 | Ultrasonic probe constant pressure holding device for improving detection precision |
| CN113324944A (en) * | 2021-06-08 | 2021-08-31 | 晶格码（青岛）智能科技有限公司 | In-situ on-line infrared spectrum monitoring equipment, system and method for crystallization process control |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203310811U (en) * | 2013-06-09 | 2013-11-27 | 天津市宏迪工程检测发展有限公司 | Ultrasonic probe with constant pressure |
| CN103698409A (en) * | 2013-12-30 | 2014-04-02 | 中国兵器工业第五二研究所 | Drum-type probe device for ultrasonic testing |
| CN203798777U (en) * | 2014-03-25 | 2014-08-27 | 济钢集团有限公司 | Probe support for human ultrasonic detection on steel plates |
-
2016
- 2016-11-25 CN CN201611055437.0A patent/CN106645426A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203310811U (en) * | 2013-06-09 | 2013-11-27 | 天津市宏迪工程检测发展有限公司 | Ultrasonic probe with constant pressure |
| CN103698409A (en) * | 2013-12-30 | 2014-04-02 | 中国兵器工业第五二研究所 | Drum-type probe device for ultrasonic testing |
| CN203798777U (en) * | 2014-03-25 | 2014-08-27 | 济钢集团有限公司 | Probe support for human ultrasonic detection on steel plates |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728041A (en) * | 2017-10-11 | 2018-02-23 | 李贺满 | A kind of electronic circuit board electric property detection device |
| CN113030279A (en) * | 2021-03-31 | 2021-06-25 | 南京工业大学 | Ultrasonic probe constant pressure holding device for improving detection precision |
| CN113030279B (en) * | 2021-03-31 | 2021-12-31 | 南京工业大学 | Ultrasonic probe constant pressure holding device for improving detection precision |
| CN113324944A (en) * | 2021-06-08 | 2021-08-31 | 晶格码（青岛）智能科技有限公司 | In-situ on-line infrared spectrum monitoring equipment, system and method for crystallization process control |
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Application publication date: 20170510 |