CN109187431A - A kind of measuring device for liquid refractive index and measurement method - Google Patents
A kind of measuring device for liquid refractive index and measurement method Download PDFInfo
- Publication number
- CN109187431A CN109187431A CN201811236901.5A CN201811236901A CN109187431A CN 109187431 A CN109187431 A CN 109187431A CN 201811236901 A CN201811236901 A CN 201811236901A CN 109187431 A CN109187431 A CN 109187431A
- Authority
- CN
- China
- Prior art keywords
- optical resin
- reflected beams
- refractive index
- plane
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/4133—Refractometers, e.g. differential
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
Abstract
The present invention relates to a kind of measuring device for liquid refractive index and measurement methods, comprising: to generate the light source, the optical resin prism to deflecting light beams and the imaging sensor to receive light beam image of light beam；The optical resin prism includes the plane of incidence that light beam can be made to enter, the first surface contacted with quantity of fluid to be measured, second surface, third surface and the outgoing plane that light beam can be made to project；The first surface contacted with quantity of fluid to be measured, second surface, third surface can make at least partly light formation total reflection in light beam, be respectively formed the first the reflected beams, the second the reflected beams and third the reflected beams.Influence of the bubble to measuring refractive indexes of liquid in testing liquid is reduced as a result, meanwhile, promote device miniaturization.
Description
Technical field
The present invention relates to a kind of field of measuring technique more particularly to a kind of measuring device for liquid refractive index and measurement methods.
Background technique
In the prior art, refractive index is one of important optical parameter of liquid, will appreciate that the optics of liquid by refractive index
The properties such as performance, purity, concentration and dispersion, other some parameters (such as temperature) are also closely related with refractive index.Therefore, liquid
The measurement of body refractive index has important meaning in chemical industry, medicine, food, petroleum etc. field.
Cirtical angle of total reflection imaging method is a kind of measurement method of common liquid refractivity, be according to total reflection principle,
It is in the angle of emergence of critical angle light by measuring, calculates the refractive index of quantity of fluid to be measured.As shown in Figure 1, a kind of typical
Cirtical angle of total reflection measuring system includes light source U1, prism U3, imaging sensor U2, when work, the light beam that is issued from light source U1
The interface that fluid to be measured X and prism U3 are reached across prism U3, in the interfacial separation at refraction light and reflected light, wherein reflection
Light is received by imaging sensor U2, generates shaded-image shown in right side as shown in figure 1.In the shaded-image, bright part is right
The light that should be totally reflected at the interface of detected solution X and prism U3, the corresponding light not being totally reflected in dark part are bright
The then corresponding critical angle being totally reflected of dark line of demarcation.Due to the variations in refractive index of detected solution will lead to generation total reflection it is critical
The variation at angle, therefore the position by measuring the bright-dark cut, so that it may the cirtical angle of total reflection is found out, so as to find out test solution
The refractive index of body.
But when containing bubble in quantity of fluid to be measured, this single total reflection measurement method not can avoid bubble
Interference to measurement, realization accurately measure.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of measuring device for liquid refractive index and measurement methods, to solve
The certainly problem of measuring refractive indexes of liquid inaccuracy in the prior art.
According to an aspect of the invention, there is provided a kind of measuring device for liquid refractive index, comprising:
To generate the light source of light beam, the optical resin prism to reflect incident beam, to receive outgoing beam figure
The line scan image sensor of picture and the refractive index computing module to calculate liquid refractivity to be measured；
The optical resin prism includes that light beam can be made to enter to form the plane of incidence of incident beam, connect with quantity of fluid to be measured
The first surface of touching, second surface, third surface and light beam can be made to project the outgoing plane to form outgoing beam；It is described with it is to be measured
The first surface of quantity of fluid contact, second surface, third surface can make at least partly light formation total reflection in light beam, respectively
Form the first the reflected beams, the second the reflected beams and third the reflected beams；
The light beam that light source issues enters the plane of incidence of optical resin prism, forms incident beam；
The incident beam propagated in the optical resin prism and on the first surface at least partly light with
Total reflection occurs for quantity of fluid to be measured to form the first the reflected beams；
First the reflected beams propagated in the optical resin prism and on the second surface again with it is to be measured
Quantity of fluid contacts and total reflection occurs to form the second the reflected beams；
Second the reflected beams propagated in the optical resin prism and on the third surface again with it is to be measured
Quantity of fluid contacts and total reflection occurs to form third the reflected beams；
The third the reflected beams are projected through the outgoing plane.
Collimating lens are set between the light source and optical resin prism；
The light beam that the light source issues is after the collimation lens, into the plane of incidence of the optical resin prism.
The collimation lens is made of 2 optical surfaces of aspherical mirror and Bao Weier prism.
The first surface and central symmetry of the third surface relative to the optical resin prism.
The second surface is parallel with the plane of incidence and the outgoing plane.
The plane of incidence, first surface, second surface, third surface, outgoing plane and the optical resin prism are integrated
Molding.
The refractive index of the optical resin prism is between 1.50-1.75；
The plane of incidence is toric lens；
The outgoing plane is cylindrical mirror.
According to another aspect of the present invention, a kind of method for measuring liquid refractive is provided, using liquid as described above
Body apparatus for measuring refractive index, comprising:
The light beam that light source issues enters the plane of incidence of optical resin prism, forms incident beam；
The incident beam propagated in the optical resin prism and on the first surface at least partly light with
Total reflection occurs for quantity of fluid to be measured to form the first the reflected beams；
First the reflected beams propagated in the optical resin prism and on the second surface again with it is to be measured
Quantity of fluid contacts and total reflection occurs to form the second the reflected beams；
Second the reflected beams propagated in the optical resin prism and on the third surface again with it is to be measured
Quantity of fluid contacts and total reflection occurs to form third the reflected beams；
The third the reflected beams are projected through the outgoing plane；
Imaging sensor acquires the image of the third the reflected beams；
Refractive index computing module according to the images of collected third the reflected beams and the corresponding relationship of refractive index calculate to
Measure the refractive index of liquid.
Collimating lens are set between the light source and optical resin prism；
The light beam that the light source issues is after the collimation lens, into the plane of incidence of the optical resin prism.
The first surface and central symmetry of the third surface relative to the optical resin prism；
The second surface is parallel with the plane of incidence and the outgoing plane；
The plane of incidence, first surface, second surface, third surface, outgoing plane and the optical resin prism are integrated
Molding.
Beneficial effect using the above scheme is:
The measuring device for liquid refractive index and method of the embodiment of the present invention, by using in optical resin prism and to be measured
The corresponding relationship of the refractive index of the light beam image that is totally reflected on multiple contact surfaces of liquid and the quantity of fluid to be measured, come calculate this to
The refractive index for measuring liquid, so that bubble in liquid to be measured has obtained elimination/inhibition to the interference of measurement result, to improve
The adaptability of measuring device.Meanwhile reducing the volume of measuring device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of measuring refractive indexes of liquid equipment in the prior art；
Fig. 2 is the optical principle schematic diagram for the measuring device for liquid refractive index that the embodiment of the present invention 1 provides；
Fig. 3 is the optical principle schematic diagram for the measuring device for liquid refractive index that the embodiment of the present invention 2 provides；
Fig. 4 is the optical principle schematic diagram for the measuring device for liquid refractive index that the embodiment of the present invention 3 provides；
Fig. 5 is the light path schematic diagram for the measuring device for liquid refractive index that the embodiment of the present invention 3 provides；
Fig. 6 is the solution bubble interference principle schematic diagram for the measuring device for liquid refractive index that the embodiment of the present invention 3 provides；
Fig. 7~9 are the ray-tracing simulations schematic diagram that the embodiment of the present invention 3 provides.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.It should be noted that in the absence of conflict, in embodiments herein and embodiment
Feature can be combined with each other.
In each embodiment of the present invention, multiple total reflection can be realized, by due to the effect of bubble in liquid to be measured
The extra total reflection light generated reflects the present apparatus again by the contact surface of prism and quantity of fluid to be measured.To reach sieve
Choosing is accurately totally reflected the effect of light, avoids/reduce influence of the bubble to measurement.Meanwhile the miniaturization of realization device.
Embodiment one
As shown in Fig. 2, the embodiment of the present invention 1 provides a kind of measuring device for liquid refractive index, comprising:
Light source U1, preferably laser light source, for limiting the incident angle of incident beam；
Optical resin prism U3, including the plane of incidence, the first surface S2 contacted with quantity of fluid C to be measured, second surface S3,
Three surface S4 and outgoing plane S5.
The light beam that light source U1 is issued is incident in optical resin prism U3 through the plane of incidence to form incident beam, the incidence
Light beam is propagated in the optical resin prism U3 and at least partly light and quantity of fluid C to be measured are sent out on the first surface S2
To form the first the reflected beams, first the reflected beams are propagated in the optical resin prism U3 and described for raw total reflection
It is contacted again with quantity of fluid C to be measured on second surface S3 and total reflection occurs to form the second the reflected beams, second reflection
Light beam is propagated in the optical resin prism U3 and contacts and occur with quantity of fluid C to be measured again on the third surface S4
To form third the reflected beams, the third the reflected beams are projected through the outgoing plane S5 for total reflection；
Imaging sensor U4, preferably line scan image sensor, for acquiring the third reflected light projected through outgoing plane S5
The image of beam；
Refractive index computing module (not shown), for being calculated according to the corresponding relationship of third the reflected beams image and refractive index
The refractive index of quantity of fluid C to be measured.
The measuring device for liquid refractive index of the embodiment of the present invention, by using in optical resin prism U3 and quantity of fluid to be measured
The corresponding relationship of the refractive index of the light beam image of multiple total reflection and the quantity of fluid C to be measured, to be measured to calculate this on the contact surface of C
The refractive index of quantity of fluid C, so that bubble has obtained elimination/inhibition to the interference of measurement result in quantity of fluid C to be measured.To improve
The measurement accuracy of measuring device, the reliability of measurement and adaptability.Meanwhile reducing the volume of measuring device.
Preferably, the light source is laser light source.
Preferably, the first surface S2 and center pair of the third surface S4 relative to the optical resin prism U3
Claim.
Preferably, the second surface S3 is parallel with the plane of incidence and the outgoing plane S5.
Embodiment 2
As shown in figure 3, the embodiment of the present invention 2 provides a kind of measuring device for liquid refractive index, on the basis of embodiment 1
On, the present embodiment further comprises:
Collimation lens U2 is set between light source U1 and optical resin prism U3, for converging the light issued from light source U1
Beam is to be incident in optical resin prism U3.And the main shaft of collimation lens U2 is overlapped with the center of light source.
Further, collimation lens U2 is made of 2 optical surfaces, and an optical surface is aspherical mirror；Another optical surface
For Bao Weier prism (powerwell lens).
Embodiment 3
As shown in figure 4, the embodiment of the present invention 3 provides a kind of measuring device for liquid refractive index, on the basis of embodiment 2
On, the present embodiment further comprises plane of incidence S1 and outgoing plane S5.Plane of incidence S1 is used to control incident light angle in certain model
In enclosing；Outgoing plane S5 is used to expand the angle of outgoing beam.
Further, plane of incidence S1 is toric lens.
Further, outgoing plane S5 is cylindrical mirror.
Preferably, the plane of incidence S1 and outgoing plane S5 and optical resin prism U3 is integrally formed, it is highly preferred that being to use
Optical-grade transparent resin material；Using Shooting Technique integrated molding, to ensure the assembly consistency of optical component.
Specifically, as shown in figure 5, incident beam reaches the first table that optical resin prism U3 is contacted with quantity of fluid C to be measured
When the S2 of face, ranges of incidence angles is a1-a2, and the cirtical angle of total reflection corresponding with quantity of fluid C to be measured is ac, less than the critical angle
Light (a1-ac) reflects the present apparatus, and the light (ac-a2) greater than the critical angle is totally reflected, and forms the first the reflected beams,
Continuation is propagated in optical resin prism U3, and reaches second surface S3.At this moment, the incident angle of light beam is between a3-a4, and
Greater than ac.Therefore, which is totally reflected, and forms the second the reflected beams, continuation is propagated in optical resin prism U3, and is arrived
Up to third surface S4.At this moment, the incident angle of light beam is between a7-a8, since S2 and S4 is symmetric relation, a7-a8 and ac-a2
It is equal, it is greater than ac.Therefore, the second the reflected beams are totally reflected, and form third the reflected beams, are continued in optical resin prism U3
Middle propagation, and reach outgoing plane S5.And projected after the diffusion of S5, arrive at line scan image sensor U4.
If there is bubble in quantity of fluid C to be measured, bubble is in suspended state, does not contact with optical resin prism U3, not shadow
Ring the measurement of the present apparatus.
Bubble contacts with the surface S2 of optical resin prism U3 and is located between ac-a2.Due to being gas, gas in bubble
Refractive index be much smaller than quantity of fluid C to be measured.Therefore, light beam is equally totally reflected, and does not influence the measurement of the present apparatus.
Bubble contacts with the surface S2 of optical resin prism U3 and is located between a1-ac.Due to being gas, gas in bubble
Refractive index be much smaller than quantity of fluid C to be measured.Therefore, light beam is equally totally reflected, and will generate extra total reflection light beam, is such as schemed
Shown in 6.
Extra light beam and the second useful the reflected beams form compound total reflection light beam, pass in optical resin prism U3
It broadcasts, arrives at the surface S3.At this moment, total reflection light beam incident angle extra in compound total reflection light beam is between a4-a5, and is greater than
ac.Therefore, which is totally reflected, and continuation is propagated in optical resin prism U3, and reaches third surface S4.This
When, the compound incident angle for being totally reflected total reflection light beam extra in light beam is between a6-a7, since S2 and S4 is symmetrical closes
System, a6-a7 is equal with a1-ac, is less than ac.Therefore, extra light beam will reflect the present apparatus, and useful light beam continues in light
It learns and is propagated in resin prism U3, form third the reflected beams, and project after reaching outgoing plane S5, do not influence the measurement of the present apparatus.
Bubble is not only contacted with the surface S2 of optical resin prism U3, and between a1-ac.Meanwhile there are also bubble with
The surface S4 of optical resin prism U3 contacts, and between a6-a7.Extra light beam can not reflect the present apparatus, be formed multiple
It closes total reflection light beam to project through outgoing plane S5, then will affect the measurement of the present apparatus.
Referring to Fig. 7~9, embodiment according to the present invention 3 is measured different using the present apparatus that ray tracking soft simulates
When the quantity of fluid C to be measured of refractive index, image of the third the reflected beams in line scan image sensor.
Fig. 7 is to measure the image that refractive index is 1.3330 (deionized waters).
Fig. 8 is to measure the image that refractive index is 1.4250 liquid.
Fig. 9 is to measure the image that refractive index is 1.5230 liquid.
Embodiment 4
According to above-mentioned each embodiment, the present embodiment 4 provides a kind of method for measuring liquid refractive, using above-mentioned each reality
The measuring device for liquid refractive index of example offer is provided, comprising:
The light beam that light source issues enters the plane of incidence of optical resin prism, forms incident beam；
The incident beam propagated in the optical resin prism and on the first surface at least partly light with
Total reflection occurs for quantity of fluid to be measured to form the first the reflected beams；
First the reflected beams propagated in the optical resin prism and on the second surface again with it is to be measured
Quantity of fluid contacts and total reflection occurs to form the second the reflected beams；
Second the reflected beams propagated in the optical resin prism and on the third surface again with it is to be measured
Quantity of fluid contacts and total reflection occurs to form third the reflected beams；
The third the reflected beams are projected through the outgoing plane；
Line scan image sensor acquires the image of the third the reflected beams；
Refractive index computing module according to the images of collected third the reflected beams and the corresponding relationship of refractive index calculate to
Measure the refractive index of liquid.
Collimating lens are set between the light source and optical resin prism；
The light beam that the light source issues is after the collimation lens, into the plane of incidence of the optical resin prism.
The first surface and central symmetry of the third surface relative to the optical resin prism；
The second surface is parallel with the plane of incidence and the outgoing plane；
The plane of incidence, first surface, second surface, third surface, outgoing plane and the optical resin prism are integrated
Molding.
In conclusion can be realized multiple total reflection in each embodiment of the present invention, it will be due to bubble in liquid to be measured
Effect and the extra total reflection light that generates reflects the present apparatus again by the contact surface of prism and quantity of fluid to be measured.From
And have the function that screening accurately total reflection light, avoid/reduce influence of the bubble to measurement.Meanwhile realization device is small
Type.
The measuring device for liquid refractive index and method of the embodiment of the present invention, by using in optical resin prism and to be measured
The corresponding relationship of the refractive index of the light beam image that is totally reflected on multiple contact surfaces of liquid and the quantity of fluid to be measured, come calculate this to
The refractive index for measuring liquid, so that bubble in liquid to be measured has obtained elimination/inhibition to the interference of measurement result, to improve
The adaptability of measuring device.Meanwhile reducing the volume of measuring device.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of measuring device for liquid refractive index characterized by comprising
To generate the light source of light beam, the optical resin prism to reflect incident beam and to receive outgoing beam image
Imaging sensor；
The optical resin prism includes that light beam can be made to enter to form the plane of incidence of incident beam, contact with quantity of fluid to be measured
First surface, second surface, third surface and light beam can be made to project the outgoing plane to form outgoing beam；Described and liquid to be measured
The first surface of body contact, second surface, third surface can make at least partly light formation total reflection in light beam, be respectively formed
First the reflected beams, the second the reflected beams and third the reflected beams；
The light beam that light source issues enters the plane of incidence of optical resin prism, forms incident beam；
The incident beam propagated in the optical resin prism and on the first surface at least partly light with it is to be measured
Total reflection occurs for quantity of fluid to form the first the reflected beams；
First the reflected beams propagated in the optical resin prism and on the second surface again with liquid to be measured
Body contacts and total reflection occurs to form the second the reflected beams；
Second the reflected beams propagated in the optical resin prism and on the third surface again with liquid to be measured
Body contacts and total reflection occurs to form third the reflected beams；
The third the reflected beams are projected through the outgoing plane.
2. measuring device for liquid refractive index according to claim 1, which is characterized in that the light source and optical resin prism
Between collimating lens are set；
The light beam that the light source issues is after the collimation lens, into the plane of incidence of the optical resin prism.
3. measuring device for liquid refractive index according to claim 2, which is characterized in that the collimation lens is by aspherical mirror
With 2 optical surface compositions of Bao Weier prism.
4. measuring device for liquid refractive index according to claim 1, which is characterized in that the first surface and the third
Central symmetry of the surface relative to the optical resin prism.
5. measuring device for liquid refractive index according to claim 1, which is characterized in that the second surface and the incidence
Face is parallel with the outgoing plane.
6. measuring device for liquid refractive index according to claim 1, which is characterized in that the plane of incidence, first surface,
Two surfaces, third surface, outgoing plane and the optical resin prism are integrally formed.
7. measuring device for liquid refractive index according to claim 1, which is characterized in that the refraction of the optical resin prism
Rate is between 1.50-1.75；
The plane of incidence is toric lens；
The outgoing plane is cylindrical mirror.
8. a kind of method for measuring liquid refractive, using the measuring device for liquid refractive index as described in claim 1~7 is any,
It is characterised by comprising:
The light beam that light source issues enters the plane of incidence of optical resin prism, forms incident beam；
The incident beam propagated in the optical resin prism and on the first surface at least partly light with it is to be measured
Total reflection occurs for quantity of fluid to form the first the reflected beams；
First the reflected beams propagated in the optical resin prism and on the second surface again with liquid to be measured
Body contacts and total reflection occurs to form the second the reflected beams；
Second the reflected beams propagated in the optical resin prism and on the third surface again with liquid to be measured
Body contacts and total reflection occurs to form third the reflected beams；
The third the reflected beams are projected through the outgoing plane；
Imaging sensor acquires the image of the third the reflected beams；
Refractive index computing module calculates to be measured according to the image of collected third the reflected beams and the corresponding relationship of refractive index
The refractive index of liquid.
9. method for measuring liquid refractive according to claim 8 characterized by comprising
Collimating lens are set between the light source and optical resin prism；
The light beam that the light source issues is after the collimation lens, into the plane of incidence of the optical resin prism.
10. method for measuring liquid refractive according to claim 8 characterized by comprising
The first surface and central symmetry of the third surface relative to the optical resin prism；
The second surface is parallel with the plane of incidence and the outgoing plane；
The plane of incidence, first surface, second surface, third surface, outgoing plane and the optical resin prism are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811236901.5A CN109187431B (en) | 2018-10-23 | 2018-10-23 | Liquid refractive index measuring device and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811236901.5A CN109187431B (en) | 2018-10-23 | 2018-10-23 | Liquid refractive index measuring device and measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109187431A true CN109187431A (en) | 2019-01-11 |
| CN109187431B CN109187431B (en) | 2023-06-16 |
Family
ID=64942918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811236901.5A Active CN109187431B (en) | 2018-10-23 | 2018-10-23 | Liquid refractive index measuring device and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109187431B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320179A (en) * | 2019-07-25 | 2019-10-11 | 四川维思达光学技术有限公司 | A kind of the liquid refractivity test probe and its anaclasis method of working face optically focused |
| CN110333187A (en) * | 2019-07-25 | 2019-10-15 | 四川维思达光学技术有限公司 | A kind of detection spoon measuring strength of fluid |
| CN110398476A (en) * | 2019-07-25 | 2019-11-01 | 四川维思达光学技术有限公司 | The optical system and its measurement method that pen type for measuring refractive indexes of liquid is laid out |
| WO2022067361A1 (en) * | 2020-09-30 | 2022-04-07 | Anton Paar Gmbh | Method and refractometer for determining the critical angle of the total reflection in a liquid sample |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1924311A1 (en) * | 1969-05-13 | 1970-11-19 | Bayer Ag | Device for measuring the refractive index of liquids |
| CN102012359A (en) * | 2010-11-19 | 2011-04-13 | 华中科技大学 | Liquid multi-parameter sensor |
| CN102967583A (en) * | 2012-11-11 | 2013-03-13 | 华中科技大学 | Measuring apparatus and method used for measuring liquid phase gas refraction index |
| CN104792732A (en) * | 2015-04-04 | 2015-07-22 | 华中科技大学 | Refractometer for self-reference of light source distribution |
| CN105954232A (en) * | 2016-05-26 | 2016-09-21 | 北京领航力嘉机电有限公司 | Liquid refractive index measuring system |
| CN106990059A (en) * | 2016-01-20 | 2017-07-28 | 李栋 | A kind of fluid sample measurement apparatus and measuring method |
-
2018
- 2018-10-23 CN CN201811236901.5A patent/CN109187431B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1924311A1 (en) * | 1969-05-13 | 1970-11-19 | Bayer Ag | Device for measuring the refractive index of liquids |
| CN102012359A (en) * | 2010-11-19 | 2011-04-13 | 华中科技大学 | Liquid multi-parameter sensor |
| CN102967583A (en) * | 2012-11-11 | 2013-03-13 | 华中科技大学 | Measuring apparatus and method used for measuring liquid phase gas refraction index |
| CN104792732A (en) * | 2015-04-04 | 2015-07-22 | 华中科技大学 | Refractometer for self-reference of light source distribution |
| CN106990059A (en) * | 2016-01-20 | 2017-07-28 | 李栋 | A kind of fluid sample measurement apparatus and measuring method |
| CN105954232A (en) * | 2016-05-26 | 2016-09-21 | 北京领航力嘉机电有限公司 | Liquid refractive index measuring system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320179A (en) * | 2019-07-25 | 2019-10-11 | 四川维思达光学技术有限公司 | A kind of the liquid refractivity test probe and its anaclasis method of working face optically focused |
| CN110333187A (en) * | 2019-07-25 | 2019-10-15 | 四川维思达光学技术有限公司 | A kind of detection spoon measuring strength of fluid |
| CN110398476A (en) * | 2019-07-25 | 2019-11-01 | 四川维思达光学技术有限公司 | The optical system and its measurement method that pen type for measuring refractive indexes of liquid is laid out |
| CN110398476B (en) * | 2019-07-25 | 2024-02-23 | 四川维思达光学技术有限公司 | Pen-type layout optical system for measuring refractive index of liquid and measuring method thereof |
| CN110320179B (en) * | 2019-07-25 | 2024-03-19 | 四川维思达光学技术有限公司 | Working face condensation liquid refractive index test probe and light refraction method thereof |
| WO2022067361A1 (en) * | 2020-09-30 | 2022-04-07 | Anton Paar Gmbh | Method and refractometer for determining the critical angle of the total reflection in a liquid sample |
| AT524268A1 (en) * | 2020-09-30 | 2022-04-15 | Anton Paar Gmbh | Method for determining the critical angle of total internal reflection in a liquid sample |
| AT524268B1 (en) * | 2020-09-30 | 2023-01-15 | Anton Paar Gmbh | Method for determining the critical angle of total internal reflection in a liquid sample |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109187431B (en) | 2023-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109187431A (en) | A kind of measuring device for liquid refractive index and measurement method | |
| CN105954232B (en) | A kind of measuring refractive indexes of liquid system | |
| CN112997058A (en) | Method and apparatus for waveguide metrology | |
| KR102597197B1 (en) | Structured light projection for specular surfaces | |
| JP5686139B2 (en) | Manufacturing method of glass substrate for liquid crystal display panel | |
| CN108700511A (en) | Surface refractive index assay method and the surface stress assay method that this method is utilized | |
| CN209400417U (en) | A kind of measuring device for liquid refractive index | |
| CN109187432A (en) | A kind of measuring device for liquid refractive index and measurement method | |
| CN209400418U (en) | A kind of measuring device for liquid refractive index | |
| CN109580182A (en) | Curved optical device refractive index measurement method and device based on Brewster's law | |
| CN107607050A (en) | Laser thickness measuring apparatus | |
| CN105737758B (en) | A kind of long-range profile measuring instrument | |
| CN208458975U (en) | Optics module detection device | |
| CN105758333A (en) | Long-trace optical surface profile detector | |
| CN110044928A (en) | A kind of detection device of space encoding light field to bend glass surface defect | |
| WO2023007491A1 (en) | Optical-based validation of parallelism between internal facets | |
| CN105674913B (en) | A kind of long-range Optical Surface detecting system | |
| CN102486373B (en) | Range finding method and range finding system | |
| CN205642307U (en) | Long -range shape of face measuring apparatu | |
| CN107831140A (en) | The ultraviolet refraction index test method of optical material | |
| CN207894588U (en) | The more field image quality detecting devices of optical lens based on prism of corner cube | |
| CN205505989U (en) | Long -range optical surface shape of face detecting system | |
| CN205505988U (en) | Long -range optical surface shape of face detector | |
| CN205505990U (en) | Long -range shape of face measuring device | |
| CN113884180B (en) | Testing system, method and device for diffraction optical waveguide |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190619 Address after: 100076 Room 502, 5th Floor, No. 10 Xinghuo Road, Science City, Fengtai District, Beijing Applicant after: BEIJING LINGHANG LIJIA ELECTROMECHANICAL Co.,Ltd. Address before: 102600 Tianfu Road, Tianhua Street, Biological and Pharmaceutical Industry Base, Daxing District, Beijing Applicant before: BEIJING BORUISI COMMERCE AND TRADE Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |