CN104570313A - Focusing system based on piezoelectric effect - Google Patents
Focusing system based on piezoelectric effect Download PDFInfo
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- CN104570313A CN104570313A CN201410822646.8A CN201410822646A CN104570313A CN 104570313 A CN104570313 A CN 104570313A CN 201410822646 A CN201410822646 A CN 201410822646A CN 104570313 A CN104570313 A CN 104570313A
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- composite material
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- electricity composite
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- objective table
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- 230000000694 effects Effects 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 11
- 239000000919 ceramic Substances 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000806 Latten Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000008572 axis elongation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/241—Devices for focusing
- G02B21/242—Devices for focusing with coarse and fine adjustment mechanism
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The invention discloses a focusing system based on a piezoelectric effect and used for overcoming defects that a mechanical focusing method applied to objects such as optical microscopes and the like is low in focusing efficiency, low in precision and the like at present. The system is characterized by comprising a double-layer object stage, a piezoelectric composite material, a power supply module and a control button module. The system has the advantages as follows: mechanical focusing is changed into electronic focusing, the distance between an objective and the object stage is changed by the aid of the electric effect of the piezoelectric composite material, the voltage output of the power supply module is changed through a control button, and the deformation travel of the piezoelectric composite material is changed, so that the accurate focusing operation is realized, the imaging effect is improved, and the operation difficulty is reduced.
Description
Technical field
The present invention designs a kind of for focusing of microscope device, especially a kind of device utilizing piezoelectric effect to change the distance between micro objective and objective table.
Background technology
Conventional optical microscope adopts mechanical hook-up to focus usually, generally has thick accurate burnt spiral and thin accurate burnt spiral two knobs.First rotate the approximate location of thick accurate burnt spiral determination lens barrel during focusing, then rotate thin accurate burnt spiral correction.Such focusing mode not only speed is slow, and the bad control of precision, is easily subject to the impact of mechanical gear spacing and cogwheel gearing.Especially the high power objective microscope of more than 40 times, precisely focusing particularly difficulty, only has veteran experimenter just can complete usually.
This patent, for the shortcoming of above-mentioned conventional optical microscope focusing difficulty, proposes a kind of piezo-electricity composite material that uses to change the focusing system of objective table height.
Piezoelectric is that one can produce electric field because of mechanically deform, also the ceramic material of mechanically deform can be produced because of electric field action, this intrinsic electro-mechanical coupling effect makes piezoelectric be widely used in engineering, can be made into piezoelectric transducer, piezoelectric actuator, sensor.But under electric field action, the deformation quantity of piezoelectric ceramics is very little, be no more than at most 1/10000000th of size own, due to stroke limiting, a lot of field cannot use.Piezoelectric is made various shape by current people, and wishing increases piezoelectric stroke by the method for accumulation miniature deformation.
Publication No. is the piezoelectric ceramics (as shown in Figure 1) that patent discloses a kind of helical structure of CN200979890Y, the piezoelectric of this structure has a shortcoming clearly, this material bearing of trend is axis direction, but the highest and minimum point line does not pass through axle center, the plane of flattening making piezoelectric ceramics after powered up not with axes normal, material effects point is caused to offset, the problems such as shape generation angle changes, fixing difficulty.
In addition, the deformation quantity of every layer is just accumulated merely by the stroke method increasing piezoelectric ceramics in this invention, and stroke is still less.
Because the functional of piezoelectric realizes primarily of axial strain, so the present invention can amplify the principle of deformation according to spiral object, adopt N-type double-layer spiral structure, the deformation quantity of piezoelectric is increased, and axle center is crossed in extension direction, make piezoelectric that angle change can not occur after powered up.By the piezoelectric ceramics of this new structure, realize regulating the high precision of objective table.
Summary of the invention
Here, we list some module of the present invention, function, advantage and novelty to summarize fundamental purpose of the present invention.Should be appreciated that, these modules, function, advantage and novelty without the need to all comprising in a certain specific embodiments.
Fundamental purpose of the present invention is, provides a kind of novel focusing system, by regulating the height of objective table to change focal length, can effectively improve focusing efficiency by the method, increasing focusing accuracy.
Native system comprises double-deck objective table, piezo-electricity composite material, supply module and control knob module.
Described double layer side objective table upper strata platform comprises intermediate plate and Tong Guangkou, and lower floor's platform comprises piezo-electricity composite material base, Tong Guangkou, is connected between two-layer objective table by column, is kept the relative position of two-layer by column.Described column is also for the axial location of fixing piezo-electricity composite material.Described piezo-electricity composite material base is owing to being piezo-electricity composite material energising.
Described piezo-electricity composite material comprises outer layer metal electrode layer A, and middle piezoceramics layer and inner layer metal electrode layer B, three layers are closely as one.Described " metal electrode layer A " except do electrode use also need as metal negative, need adopt ductility low, have certain thickness sheet metal.Described " metal electrode layer B " only makes electrode and uses, and requires that ductility is fine.Described Novel piezoelectric composite material adopts N-type double-spiral structure.Described Novel piezoelectric composite material " piezoceramics layer " double helix circle center line connecting needs and dead in line.
After energising, voltage makes " piezoceramics layer " every block disk all occur to extend vertically by metal electrode, " metal electrode layer A " shape invariance simultaneously, therefore the relative B side of piezoelectric ceramics near A side is shunk, make the spirality expansion vertically of full wafer pottery, and then change platform position, objective table upper strata.
Described supply module is connected with piezo-electricity composite material base, the controlled button module impact of this module, outputting multi electric voltage, thus makes the stroke of piezo-electricity composite material evenly increase or reduce.
Described control knob module realizes increase and the reduction of supply voltage by changing supply module resistance sizes.
Beneficial effect of the present invention is:
It is electronic zooming that the present invention changes tradition change mechanical focusing, the electrical effect of piezo-electricity composite material is utilized to change the distance of object lens and objective table, the voltage being changed supply module by control knob is exported, change the deformation stroke of piezo-electricity composite material, thus carry out accurate focus operations, improve imaging effect, reduce operation easier.Design a kind of Novel piezoelectric composite material simultaneously, by the cumulative stroke effectively increasing material of every layer of micro-displacement, ensure that the feasibility that the design implements.
Accompanying drawing explanation
Fig. 1 is double-deck objective table schematic diagram in the embodiment of the present invention
Fig. 2 is optical microscope schematic diagram in the embodiment of the present invention
Fig. 3 is side view when not being energized of the piezo-electricity composite material in the embodiment of the present invention
Side view when Fig. 4 is the piezo-electricity composite material energising in the embodiment of the present invention
Embodiment
Technical matters to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of focusing system based on piezoelectric effect, below in conjunction with Figure of description, be further elaborated embodiment of the present invention.
Fig. 2 is optical microscope schematic diagram, and wherein 1 is eyepiece, and 2 is lens barrel, and 3 is object lens, and above-mentioned 3 module composition Observation Blocks, are connected with No. 8 mirror holders by mechanical gear, are realized moving up and down by No. 6 coarse adjustment knobs, complete first step focusing.4 is double-deck objective table, is realized increasing of upper strata objective table by No. 7 control knobs and is reduced.5 is reflective mirrors, and 9 is Microscope base.
Fig. 1 is double-deck objective table schematic diagram in the embodiment of the present invention, and wherein objective table upper strata platform comprises intermediate plate and Tong Guangkou, and lower floor's platform comprises piezo-electricity composite material base, Tong Guangkou, is connected between two-layer objective table by column, is kept the relative position of two-layer by column.Described column is also for the axial location of fixing piezo-electricity composite material.Described piezo-electricity composite material base is owing to being piezo-electricity composite material energising.
Described piezo-electricity composite material has four to lay respectively at objective table corner, upper strata, and this piezo-electricity composite material comprises " metal electrode layer A " for doing electrode and metal negative; For doing " the metal electrode layer B " of electrode; For providing " piezoceramics layer " of piezoelectric effect.
Described " metal electrode layer A " uses also need as metal negative except doing electrode, keeps own form not malleable after powered up, produces deformation difference with " piezoceramics layer ", therefore needs to adopt ductility lower slightly or have certain thickness sheet metal, as latten(-tin) etc." metal electrode layer A " and piezoceramics layer need be combined closely.
Described " metal electrode layer B " only makes electrode and uses, and requires that ductility is fine, the mode of silver layer burning infiltration or vacuum coating can be adopted to realize.
Described " piezoceramics layer " requires when deformation, and deformation stroke is comparatively large, and after deformation, angle change can not occur in position, and highs and lows line is through axle center, and in the axial direction, the center of circle O1, O2 need on axis in deformation direction.
When no power, piezoceramics layer tightens, and side view (Fig. 3) is " N " type in English alphabet, and vertical view simple helix is mosquito-repellent incense-shaped.
After energising, because " metal electrode layer A " deformation does not occur, therefore the relative B side of piezoelectric ceramics near A side is shunk, make full wafer pottery vertically spirality along axis elongation, simultaneously, helical structure also can accumulate the miniature deformation of every helical layer disk, and final realization is axially obtaining the object of larger row journey, as shown in Figure 4.
Be connected with piezo-electricity composite material base bottom 4 piezo-electricity composite materials, be fixed on objective table lower floor platform, top braces lives objective table upper strata, and effect simultaneously can change the distance of objective table upper strata platform and object lens, and then carries out the work of accurate focusing.
Described supply module, while be connected with control knob, is connected with piezo-electricity composite material base, is that piezo-electricity composite material is powered by base.
Described control knob module realizes increase and the reduction of supply voltage by changing supply module resistance sizes.
Using method of the present invention is as follows:
1. observation thing is put into microslide, be fixed in the objective table of upper strata with intermediate plate, adjustment reflective mirror makes the visual field become clear,
2. utilize coarse adjustment knob tentatively to focus work to microscope,
3. utilize control knob to increase and decrease objective table height, complete fine tuning Jiao work,
4. control module can be connected to computer by the present invention, utilizes computer to realize focusing fast and focusing work.
It may be noted that description in this instructions is only for illustration of the object of property, and should not be construed limitation of the present invention, protection scope of the present invention only depends on the protection domain of claims.
Claims (1)
1. based on a focusing system for piezoelectric effect, it is characterized by: system comprises double-deck objective table, piezo-electricity composite material, supply module and control knob module,
Described bilateral objective table upper strata platform comprises intermediate plate and Tong Guangkou, lower floor's platform comprises piezo-electricity composite material base, Tong Guangkou, connected by column between two-layer objective table, the relative position of two-layer is kept by column, described column is also for the axial location of fixing piezo-electricity composite material, described piezo-electricity composite material base is owing to being piezo-electricity composite material energising
Described piezo-electricity composite material adopts upper and lower two-layer coating metal electrode, centre is the three-layer composite structure of piezoelectric ceramics, this ceramic shape is N-type double-spiral structure, two-layer spiral center position overlaps, can extend toward both sides in the axial direction from shaft core position after energising, and then change platform position, objective table upper strata
Described supply module is connected with piezo-electricity composite material base, the controlled button module impact of this module, outputting multi electric voltage, thus makes the stroke of piezo-electricity composite material evenly increase or reduce,
Described control knob module realizes increase and the reduction of supply voltage by changing supply module resistance sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822646.8A CN104570313A (en) | 2014-12-25 | 2014-12-25 | Focusing system based on piezoelectric effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410822646.8A CN104570313A (en) | 2014-12-25 | 2014-12-25 | Focusing system based on piezoelectric effect |
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| Publication Number | Publication Date |
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| CN104570313A true CN104570313A (en) | 2015-04-29 |
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| CN201410822646.8A Pending CN104570313A (en) | 2014-12-25 | 2014-12-25 | Focusing system based on piezoelectric effect |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05181067A (en) * | 1991-12-26 | 1993-07-23 | Hitachi Denshi Ltd | Fine adjustment stage |
| CN100375307C (en) * | 1999-12-21 | 2008-03-12 | 1...有限公司 | Electro-active device |
| CN203587877U (en) * | 2013-12-17 | 2014-05-07 | 吉林大学 | Microscope fast focusing objective table device |
-
2014
- 2014-12-25 CN CN201410822646.8A patent/CN104570313A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05181067A (en) * | 1991-12-26 | 1993-07-23 | Hitachi Denshi Ltd | Fine adjustment stage |
| CN100375307C (en) * | 1999-12-21 | 2008-03-12 | 1...有限公司 | Electro-active device |
| CN203587877U (en) * | 2013-12-17 | 2014-05-07 | 吉林大学 | Microscope fast focusing objective table device |
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Effective date of registration: 20170707 Address after: 210008, room 1, building 50, 205 Yuan Yuan Lane, Gulou District, Jiangsu, Nanjing Applicant after: Chen Xiangning Address before: Private Economic Development Zone Zhenjiang city Jiangsu province 212021 Runzhou District run Hing Road East Applicant before: ZHENJIANG FENGCHENG CIVIL NETWORKING EQUIPMENT TECHNOLOGY CO.,LTD. |
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Application publication date: 20150429 |