CN214122564U - Multistage micron displacement vertical adjusting device for microcosmic experiment - Google Patents
Multistage micron displacement vertical adjusting device for microcosmic experiment Download PDFInfo
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- CN214122564U CN214122564U CN202022903100.9U CN202022903100U CN214122564U CN 214122564 U CN214122564 U CN 214122564U CN 202022903100 U CN202022903100 U CN 202022903100U CN 214122564 U CN214122564 U CN 214122564U
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Abstract
The utility model provides a vertical adjusting device of multistage micron displacement for microcosmic experiment, include: the device comprises a bottom glass plate, a top glass plate, a multi-stage piezoelectric ceramic nano positioner arranged between the bottom glass plate and the top glass plate, and a direct current voltage regulator connected in parallel with each stage of piezoelectric ceramic nano positioner in the multi-stage piezoelectric ceramic nano positioner; the utility model can completely meet the requirement of narrow available space in the autoclave; the control precision is high, and the vertical displacement is continuously adjusted within the range of 0-10 mu m; the adjustment precision is +/-20 nm; the application is simple, and the operation and the control are easy.
Description
Technical Field
The utility model relates to a microcosmic visual experiment field, concretely relates to vertical adjusting device of multistage micron displacement for microcosmic experiment.
Background
The microscopic visualization experiment is a key project in the oil reservoir development experiment technology. By utilizing the transparent characteristic of the glass visual model, the flowing phenomenon of the fluid in the etched pore canal can be observed, and a foundation is laid for scientific analysis.
The microscopic visualization level develops towards the direction of micro pores and high pressure and high temperature, and simultaneously, challenges are provided for the observation technology. The prior art encounters the problem that the micron-sized pore structure is difficult to break through when observed: how to finely adjust the focal length to make the micron-sized aperture image clearly, and the adjustment method is limited by the observation space.
In order to realize the observation of the micron-sized structure under the high pressure condition, the effective space in the autoclave of the microscopic experiment is very narrow, and the autoclave comprises a glass model, an objective table, a regulation and control platform, a fluid/electric signal device and the like, as shown in fig. 1. Since the light space cannot be blocked, the available space is further reduced. The glass model is placed on the objective table, the three-dimensional movement of the glass model is adjusted by the adjusting platform, and the vertical Z direction is mainly imaging focusing micro-movement. For micron-sized objects, the fine focusing distance is 0-100 μm within the range. The prior art mainly has two types, one type is a mechanical fine distance adjusting mode, the controllable precision of the mechanical fine distance adjusting mode meets the requirement of more than 100 mu m, the size of an adjusting platform can be controlled within the range of 10cm multiplied by 10cm, and the mechanical fine distance adjusting mode can be installed in a high-pressure kettle space. If the mechanical control precision is improved, the size of the adjusting platform is greatly increased and exceeds the available space. The other is a nano-scale piezoelectric ceramic fine distance adjusting mode, the controllable precision can meet the requirement of nm level, but the volume of a finished product platform is larger than 5cm multiplied by 2cm, and a controller and a circuit are complicated. Two typical products are shown in figure 1, and the platform must be placed on an adjusting platform for use, and is limited by space. And because the whole body is a solid body, the light rays are blocked from passing through, and the observation condition of the glass model is not satisfied.
In summary, the following problems exist in the prior art: in the microscopic visualization experiment, the device is limited by a narrow space inside the autoclave, and the adjustment of the glass model is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical adjusting device of multistage micron displacement for microcosmic experiments to in solving microcosmic visual experiment, be subject to the inside narrow and small space of autoclave, the inconvenient problem of adjustment of glass model.
For this, the utility model provides a vertical adjusting device of multistage micron displacement for microcosmic experiments, the vertical adjusting device of multistage micron displacement for microcosmic experiments includes:
the device comprises a bottom glass plate, a top glass plate, a multi-stage piezoelectric ceramic nano positioner arranged between the bottom glass plate and the top glass plate, and a direct current voltage regulator electrically connected with each stage of piezoelectric ceramic nano positioner in the multi-stage piezoelectric ceramic nano positioner and connected in parallel;
the thickness of the bottom glass plate and the top glass plate is 1mm and are parallel to each other;
the length multiplied by the width multiplied by the height of each stage of the piezoelectric ceramic nanometer positioner is as follows: the piezoelectric ceramic piece with the thickness of 1.5mm multiplied by 5mm has the maximum displacement of 3.7 mu m under the voltage of 90V;
the input voltage of the direct current voltage regulator is alternating current 220V, and the highest output voltage is 100V.
Further, the air conditioner is provided with a fan,
the multistage piezoelectric ceramic nanometer positioner is a three-stage piezoelectric ceramic nanometer positioner,
the three-level piezoelectric ceramic nanometer positioner comprises: a first-stage piezoelectric ceramic nanometer positioner, a second-stage piezoelectric ceramic nanometer positioner and a third-stage piezoelectric ceramic nanometer positioner,
the vertical adjusting device of multistage micron displacement for microcosmic experiment still includes: the first-stage frame and the second-stage frame are positioned between the bottom glass plate and the top glass plate, and the structure of the second-stage frame is the same as that of the first-stage frame;
the first stage frame includes: the platform comprises two L-shaped steps which are symmetrically arranged and a platform connected between the two L-shaped steps which are symmetrically arranged; the L-shaped steps are divided into a horizontal part and a vertical part which are connected with each other, the platform is connected between the vertical parts of the two L-shaped steps, each horizontal part is parallel to the platform, is positioned below the platform and extends out of the platform, and the second-stage frame is positioned above the first-stage frame and is parallel to the first-stage frame;
the bottom of the first-stage piezoelectric ceramic nano positioner is bonded on the bottom glass plate, and the top of the first-stage piezoelectric ceramic nano positioner is supported below the platform of the first-stage frame;
the top of the second-stage piezoelectric ceramic nano positioner is adhered to the top glass plate, and the bottom of the second-stage piezoelectric ceramic nano positioner is supported on the horizontal part of the L-shaped step of the second-stage frame;
the top of the third-stage piezoelectric ceramic nanometer positioner is bonded below the platform of the second-stage frame, and the bottom of the third-stage piezoelectric ceramic nanometer positioner is supported on the horizontal part of the L-shaped step of the first-stage frame.
Further, the air conditioner is provided with a fan,
the multistage piezoelectric ceramic nanometer positioner is a two-stage piezoelectric ceramic nanometer positioner,
the second-level piezoelectric ceramic nanometer positioner comprises: a first-stage piezoelectric ceramic nano positioner and a second-stage piezoelectric ceramic nano positioner;
the vertical adjusting device of multistage micron displacement for microcosmic experiment still includes: a first stage frame positioned between the bottom glass sheet and the top glass sheet;
the first stage frame includes: the platform comprises two L-shaped steps which are symmetrically arranged and a platform connected between the two L-shaped steps which are symmetrically arranged; the L-shaped steps are divided into a horizontal part and a vertical part which are connected with each other, wherein the platform is connected between the vertical parts of the two L-shaped steps, and each horizontal part is parallel to the platform, is positioned below the platform and extends out of the platform;
the bottom of the first-stage piezoelectric ceramic nano positioner is bonded on the bottom glass plate, and the top of the first-stage piezoelectric ceramic nano positioner is supported below the platform of the first-stage frame;
the top of the second-stage piezoelectric ceramic nanometer positioner is bonded on the top glass plate, and the bottom of the second-stage piezoelectric ceramic nanometer positioner is supported on the horizontal part of the L-shaped step of the first-stage frame.
Further, the air conditioner is provided with a fan,
the L-shaped steps of the first-stage frame and the second-stage frame are the same in size, and the length of the platform of the first-stage frame is smaller than that of the platform of the second-stage frame.
Further, the air conditioner is provided with a fan,
the height of the second-stage piezoelectric ceramic nanometer positioner is greater than that of the vertical part of the L-shaped step of the first-stage frame.
Further, the air conditioner is provided with a fan,
the number of each level of piezoelectric ceramic nanometer positioner is four, and the four piezoelectric ceramic nanometer positioners are respectively positioned at four corner points of the rectangle.
Furthermore, a glass model for microscopic visual experiments is arranged on the top glass plate, the bottom glass plate, the top glass plate and the glass model are all arranged in the autoclave, the bottom glass plate is arranged on an objective table, the objective table is provided with a light-transmitting through hole, and the light-transmitting through hole is right opposite to the observation position of the glass model.
Further, the objective table is positioned in the autoclave, and the direct current pressure regulator is positioned outside the autoclave.
Further, an objective lens is arranged above the glass model for the microscopic visualization experiment, and the objective lens extends into the autoclave from the outside of the autoclave.
Furthermore, the objective table is arranged on the vertical guide rail through screw threads and can move up and down along the vertical guide rail, the screw threads are connected with a stepping motor, the stepping motor is connected with an adjusting button, the adjusting button is arranged outside the autoclave, and the vertical guide rail is positioned in the autoclave.
Further, the bottom glass plate and the top glass plate are both rectangular.
The utility model discloses utilize piezoceramics's nanometer/micron order roll adjustment ability, researched and developed the vertical adjusting device of micron displacement who is applicable to microcosmic experiment, broken through prior art's restriction. The thickness of the utility model is only 10mm, the area is matched with the glass model, and the requirement of narrow available space in the autoclave is completely met; the control precision is high, the vertical displacement can be continuously adjusted within the range of 0-10 mu m, and the adjustment precision is +/-20 nm; the application is simple, and the operation and the control are easy.
Drawings
FIG. 1 is a schematic structural diagram of an adjusting device for microscopic visualization experiments in the prior art;
fig. 2 is a schematic structural view of a vertical adjustment device for single-stage micrometer displacement according to the present invention;
fig. 3 is a schematic structural view of a vertical adjustment device for single-stage micrometer displacement in a top view direction according to the present invention; wherein, the direct current voltage regulator is removed;
fig. 4 is a schematic structural diagram of a multi-stage micrometer displacement vertical adjustment device for microscopic experiments according to an embodiment of the present invention;
fig. 5 is a schematic top view of the first-stage frame and the first-stage piezoceramic nano-positioner in the multi-stage micro-displacement vertical adjustment device for the micro-experiments according to the embodiment of the present invention;
fig. 6 is a schematic structural view of a main viewing direction of a first-stage frame in the multi-stage micro displacement vertical adjustment device for the micro experiment according to the embodiment of the present invention;
fig. 7 is the working principle diagram of the multistage micron displacement vertical adjusting device for the microscopic experiment of the utility model.
The reference numbers illustrate:
1. a bottom glass plate; 2. a piezoelectric ceramic nano positioner; 21. a first stage piezoelectric ceramic nano positioner; 22. a second stage piezoelectric ceramic nano positioner; 23. a third stage piezoelectric ceramic nano positioner; 3. a top glass plate; 4. a direct current voltage regulator; 24. An electric wire; 51. a first stage frame; 510. a platform; 511. a vertical portion; 512. a horizontal portion; 515. an L-shaped step; 52. A second stage frame.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, the present invention will now be described.
1. Principle of method
The piezoelectric ceramic can generate micro displacement in the polarization direction under the action of voltage. The micrometer displacement vertical adjusting device is manufactured by utilizing the principle.
The piezoelectric stack is formed by stacking a plurality of piezoelectric ceramic plates, and the circuits of the adjacent ceramic plates work in a parallel connection mode. The piezoelectric ceramic plate has the characteristic of low-voltage driving in parallel connection electrically and is connected in series mechanically, and the output force and the displacement are linear superposition of the displacement of each piezoelectric ceramic plate. The piezoelectric stack is input with driving voltage, the input electric energy is converted through the inverse piezoelectric effect and is output in the form of mechanical energy, and displacement is generated in the axial direction.
The piezoelectric stack only outputs displacement and does not output force under the action of no pretightening force, and simultaneously outputs displacement and force under the action of the pretightening force. The piezoelectric stack is polarized along the z direction (vertical direction), and then a displacement formula is output:
ΔL＝Ld33 E
where Δ L is the output displacement, L is the total length, d33The piezoelectric constant is one of the most common important parameters for characterizing the performance of piezoelectric materials, and generally, the higher the piezoelectric constant of ceramics is, the better the piezoelectric performance is. In the subscripts: the first number refers to the direction of the electric field, the second number to the direction of the stress or strain, and the whole subscript "33" indicates that the polarization direction is the same as the direction of the applied force at the time of measurement.
The output force formula is as follows: fb＝k1·ΔL
In the formula, FbFor maximum output force, k1 is stiffness.
2. Structure of the product
The utility model discloses a vertical adjusting device of multistage micron displacement for microcosmic experiment also calls the vertical adjusting device of micron displacement who is applicable to microcosmic experiment to single-stage regulation and control is as an example, as shown in figure 2 and figure 3, and the vertical adjusting device of single-stage micron displacement includes glass board, micro-control displacer (piezoceramics nanometer locator 2) and direct current voltage regulator 4.
(1) The structure of the single-stage micron displacement vertical adjusting device is as follows:
micro-control displacer (also called piezoelectric ceramic nano positioner)
The micro-control shifter (the piezoelectric ceramic nano positioner 2) is a piezoelectric stack, a multilayer piezoelectric ceramic piece of the piezoelectric stack is adopted, a piezoelectric ceramic piece with the thickness of 1.5mm multiplied by 5mm is adopted according to the requirements of a microscopic experiment, the maximum displacement is 3.7 mu m under the voltage of 90V, and the maximum output is 500N. The micro-control displacer (piezo-ceramic nanopositioner 2) is commercially available, for example, using a P-733.2XY piezo-ceramic nanopositioner, a P11 series nanopositioning stage.
② glass plate
The glass plate includes: the glass plate size is designed according to the specific size of an objective table and a glass model, UV glue is used for respectively bonding the micro-control displacers at four corners of the rectangular glass plate, and the top glass plate and the bottom glass plate are bonded to form a whole. The thickness of the glass plate is preferably 1mm, namely the whole thickness is 7mm, so that certain strength is ensured, and the space is saved.
③ DC voltage regulator
The input voltage of the direct current voltage regulator 4 is alternating current 220V, the highest output voltage is 100V, and safety guarantee is provided for the experimental process. The direct current voltage regulator is divided into a coarse gear and a fine gear, and is convenient for implementation of quick and accurate regulation and control. The positive and negative poles of the 4 micro-control shifters are connected with the positive and negative poles of the direct current voltage regulator 4 through wires 24.
The displacement formula can show that to obtain more displacement, the length of the piezoelectric stack should be increased, which is limited by the space in the autoclave, and the single length increasing mode cannot be implemented, so that a multi-stage control mode, such as a 2-stage control mode and a 3-stage control mode, is designed, and not only is the requirement of total displacement realized, but also the requirement that the overall dimension of the device meets the space requirement is met. The whole device comprises a micro-control shifter, frames at all levels, a glass plate and a direct current voltage regulator.
(2) Multistage micron displacement vertical adjusting device
Micro-control shifter
In the 3-stage control device (three-stage piezo ceramic nanopositioner), as shown in fig. 4, 5, and 6, the three-stage piezo ceramic nanopositioner includes: first level piezoceramics nanometer locator 21, second level piezoceramics nanometer locator 22 and third level piezoceramics nanometer locator 23, every grade uses 4 micro-control displacers (piezoceramics nanometer locator 2), totally 12, and signal line (electric wire 24) is after the bundling, and the direct current voltage regulator is connected in parallel to the unity. And 4 displacers of each stage are respectively bonded at four corners of the frames of each stage. The 1 st-stage 4 shifters jointly control the overall displacement of the 1 st-stage frame, similarly, the 2 nd and 3 rd-stage corresponding shifters jointly control the overall displacement of the frames respectively corresponding to the overall displacement, so that the overall displacement is the sum of the 3-stage displacement, and the overall output is 2000N.
When the multistage piezoelectric ceramic nanometer positioner is a two-stage piezoelectric ceramic nanometer positioner, each stage uses 8 micro-control displacers (piezoelectric ceramic nanometer positioner 2), and signal wires are connected into a direct current voltage regulator after being bundled and connected in parallel uniformly. The three-stage piezoelectric ceramic nanometer positioner is different from the three-stage piezoelectric ceramic nanometer positioner in that one piezoelectric ceramic nanometer positioner and one frame are omitted, the third-stage piezoelectric ceramic nanometer positioner and the second-stage frame are omitted, the bottom of the first-stage piezoelectric ceramic nanometer positioner is adhered to the bottom glass plate, and the top of the first-stage piezoelectric ceramic nanometer positioner is supported below the platform of the first-stage frame;
the top of the second-stage piezoelectric ceramic nanometer positioner is bonded on the top glass plate, and the bottom of the second-stage piezoelectric ceramic nanometer positioner is supported on the horizontal part of the L-shaped step of the first-stage frame. By using the two-stage piezoelectric ceramic nanometer positioner, the whole thickness of the displacement vertical adjusting device can be reduced, and more adjusting ranges can be obtained than that of a single-stage piezoelectric ceramic nanometer positioner.
② frames of each stage
The frames at all levels play a supporting role and are made of aluminum alloy materials, so that the weight is light. Because the mass of the bearing object is not more than 100g, the frame thickness of 0.5mm can meet the requirement. The hollow part of the frame should be not smaller than the pattern area of the glass mold. As shown in fig. 6, the frame has a connection structure including an L-shaped bend (L-shaped step) and a platform, the horizontal portion and the platform are in a horizontal direction, and the vertical portion is in a vertical direction. The frame structures of all levels are the same, and the platform lengths are different. For example: the first stage frame includes: two symmetrically disposed L-shaped steps 515, and a platform 510 connected between the two symmetrically disposed L-shaped steps; the L-shaped steps are divided into horizontal portions 512 and vertical portions 511 which are connected to each other, wherein the platform 510 is connected between the vertical portions 511 of the two L-shaped steps, each of said horizontal portions 512 is parallel to and below the platform 510 and extends outwardly of the platform, and the second stage frame is located above and parallel to the first stage frame.
When the three-level piezoelectric ceramic nanometer positioner is adopted, the frame adopts a first-level frame 51 and a second-level frame 52, and when the two-level piezoelectric ceramic nanometer positioner is adopted, the frame only adopts the first-level frame 51.
The structure of the frame avoids the problem that the height of 1 piezoelectric ceramic nanometer positioner is increased at least when one-level adjustment is added due to the fact that the piezoelectric ceramic nanometer positioners are directly superposed on the same plane, and avoids the problem that the height formed by singly increasing the length is limited. The height of a single piezoelectric ceramic nanometer positioner is 0.5mm or 1mm or 1.5mm or 2mm greater than the vertical part of the L-shaped step, and the multistage piezoelectric ceramic nanometer positioners are positioned on different straight lines in the vertical direction, so that staggered arrangement of the multistage piezoelectric ceramic nanometer positioners in the vertical direction is formed, and the direct superposition of the heights of the piezoelectric ceramic nanometer positioners is avoided. For the ascending direct stack of multistage piezoceramics nanometer locator in vertical side, every increase one-level piezoceramics nanometer locator, the utility model discloses a stack mode can reduce thickness and can reach 3mm, 3.5mm, 4mm or 4.5 mm.
And 4 displacers of each stage are respectively bonded at four corners of the frames of each stage.
Glass plate
The size of the glass plate is designed according to the specific size of the objective table and the glass model. The bottom glass plate is bonded with the 1 st-stage frame; the 2 nd-stage frame is bonded with 4 displacers on the 1 st-stage frame; similarly, the 3 rd stage frame is bonded to 4 displacers on the 2 nd stage frame; finally 4 displacers on the 3 rd stage frame are bonded to the top glass plate. The bonding mode is UV glue smearing, the UV glue smearing and the bonding are integrated, the whole thickness is 10mm, the requirement of the total displacement is met, and the space is saved. If a single-stage design is adopted, the length of the micro-control displacer (piezoelectric stack) is not less than 17 mm. Compared with the mode of directly superposing a micro-control displacer (piezoelectric stack), the device can greatly reduce the overall thickness and is convenient for testing in a high-pressure kettle.
(2) Working process
Following adjustment glass model imaging focal length in the microcosmic experiment for the example to three level adjustment modes, have the vertical adjusting device of multistage micron displacement for the microcosmic experiment of tertiary piezoceramics nanometer locator promptly, explain the utility model discloses an use.
The manufacturing and adjusting device comprises 4 micro-control displacers, namely when the displacement is 0, the integral output reaches 2000N, which is equivalent to an object capable of bearing 200g of mass. The glass model or the like generally used for microscopic experiments is placed on the stage so that the total mass of the device is not more than 100g, and thus the design meets the requirements.
As shown in fig. 7, ignoring the peripheral devices of the microscopic experiment, only the focus adjustment process is described below:
firstly, the 3-level displacement device is integrally placed on an objective table, a glass model is placed on the 3-level displacement device, and the light-transmitting through hole of the objective table is aligned with the observation position of the glass model.
And secondly, starting an image observation system, slowly adjusting the position of the objective table through a finely adjusted motor, and vertically moving the objective table up and down along the vertical guide rail until the image is clear. The precision of the fitting is 100 μm, and is controlled by a stepping motor and a precision screw thread. When the objective lens is more than 50 times, the images at the minimum interval still show jumpiness, and usually miss the clearest position, influenced by the step size of the stepping motor, the thread pitch and the like. Objective X100(100 times), pore diameter 2 μm.
And starting the micron displacement vertical adjusting device. Slowly and coarsely adjusting the increased voltage, adjusting the voltage between 0V and 90V, and continuously outputting micrometer displacement within the range of 0-10 μm. Observing and judging the clearest state of the image, and then slowly and finely adjusting and changing the voltage to make the image clearest.
And fifthly, carrying out related experimental study.
And sixthly, after the experiment is finished, the zero position of the direct current voltage regulator is restored. After that, the experimental work was carried out.
The utility model has the advantages of it is following:
1. the utility model realizes the continuous adjustment of the vertical displacement within the range of 0-10 μm;
2. the whole thickness of the device can be 8.5mm, 9mm and is not more than 10mm, the area of the device is matched with that of the glass model, and the requirement that the available space of the high-pressure kettle is narrow is completely met; the maximum output can reach 2000N, and the supporting force required by the glass model is completely met.
3. The device has high control precision, and the adjusting precision is +/-20 nm;
4. the device is simple to apply and easy to control.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. For the utility model discloses a each component can make up each other under the condition of conflict not, and any technical personnel in the field do not deviate from the utility model discloses an equal change and the modification made under the prerequisite of the design and principle all should belong to the scope of protection of the utility model.
Claims (10)
1. The utility model provides a vertical adjusting device of multistage micron displacement for microcosmic experiments which characterized in that, vertical adjusting device of multistage micron displacement for microcosmic experiments includes:
the device comprises a bottom glass plate, a top glass plate, a multi-stage piezoelectric ceramic nano positioner arranged between the bottom glass plate and the top glass plate, and a direct current voltage regulator connected in parallel with each stage of piezoelectric ceramic nano positioner in the multi-stage piezoelectric ceramic nano positioner;
the thickness of the bottom glass plate and the top glass plate is 1mm and are parallel to each other;
the length multiplied by the width multiplied by the height of each stage of the piezoelectric ceramic nanometer positioner is as follows: the piezoelectric ceramic piece with the thickness of 1.5mm multiplied by 5mm has the maximum displacement of 3.7 mu m under the voltage of 90V;
the input voltage of the direct current voltage regulator is alternating current 220V, and the highest output voltage is 100V.
2. The multi-stage micro-displacement vertical adjustment device for microscopic experiments according to claim 1,
the multistage piezoelectric ceramic nanometer positioner is a three-stage piezoelectric ceramic nanometer positioner,
the three-level piezoelectric ceramic nanometer positioner comprises: a first-stage piezoelectric ceramic nanometer positioner, a second-stage piezoelectric ceramic nanometer positioner and a third-stage piezoelectric ceramic nanometer positioner,
the vertical adjusting device of multistage micron displacement for microcosmic experiment still includes: the first-stage frame and the second-stage frame are positioned between the bottom glass plate and the top glass plate, and the structure of the second-stage frame is the same as that of the first-stage frame;
the first stage frame includes: the platform comprises two L-shaped steps which are symmetrically arranged and a platform connected between the two L-shaped steps which are symmetrically arranged; the L-shaped steps are divided into a horizontal part and a vertical part which are connected with each other, the platform is connected between the vertical parts of the two L-shaped steps, each horizontal part is parallel to the platform, is positioned below the platform and extends out of the platform, and the second-stage frame is positioned above the first-stage frame and is parallel to the first-stage frame;
the bottom of the first-stage piezoelectric ceramic nano positioner is bonded on the bottom glass plate, and the top of the first-stage piezoelectric ceramic nano positioner is supported below the platform of the first-stage frame;
the top of the second-stage piezoelectric ceramic nano positioner is adhered to the top glass plate, and the bottom of the second-stage piezoelectric ceramic nano positioner is supported on the horizontal part of the L-shaped step of the second-stage frame;
the top of the third-stage piezoelectric ceramic nanometer positioner is bonded below the platform of the second-stage frame, and the bottom of the third-stage piezoelectric ceramic nanometer positioner is supported on the horizontal part of the L-shaped step of the first-stage frame.
3. The multi-stage micro-displacement vertical adjustment device for microscopic experiments according to claim 1,
the multistage piezoelectric ceramic nanometer positioner is a two-stage piezoelectric ceramic nanometer positioner,
the second-level piezoelectric ceramic nanometer positioner comprises: a first-stage piezoelectric ceramic nano positioner and a second-stage piezoelectric ceramic nano positioner;
the vertical adjusting device of multistage micron displacement for microcosmic experiment still includes: a first stage frame positioned between the bottom glass sheet and the top glass sheet;
the first stage frame includes: the platform comprises two L-shaped steps which are symmetrically arranged and a platform connected between the two L-shaped steps which are symmetrically arranged; the L-shaped steps are divided into a horizontal part and a vertical part which are connected with each other, wherein the platform is connected between the vertical parts of the two L-shaped steps, and each horizontal part is parallel to the platform, is positioned below the platform and extends out of the platform;
the bottom of the first-stage piezoelectric ceramic nano positioner is bonded on the bottom glass plate, and the top of the first-stage piezoelectric ceramic nano positioner is supported below the platform of the first-stage frame;
the top of the second-stage piezoelectric ceramic nanometer positioner is bonded on the top glass plate, and the bottom of the second-stage piezoelectric ceramic nanometer positioner is supported on the horizontal part of the L-shaped step of the first-stage frame.
4. The multi-stage micro-displacement vertical adjustment device for microscopic experiments according to claim 1 or 2,
the L-shaped steps of the first-stage frame and the second-stage frame are the same in size, and the length of the platform of the first-stage frame is smaller than that of the platform of the second-stage frame.
5. The multi-stage micro-displacement vertical adjustment device for microscopic experiments according to claim 4,
the height difference between the second-stage piezoelectric ceramic nanometer positioner and the vertical part of the L-shaped step of the first-stage frame is larger than 0 and smaller than or equal to 2 mm.
6. The multi-stage micro-displacement vertical adjustment device for microscopic experiments according to claim 4,
the number of each level of piezoelectric ceramic nanometer positioner is four, and the four piezoelectric ceramic nanometer positioners are respectively positioned at four corner points of the rectangle.
7. The vertical adjustment device for multistage micron displacement used in microscopic experiments according to claim 1, wherein the top glass plate is provided with a glass model used in microscopic visualization experiments, the bottom glass plate, the top glass plate and the glass model are all arranged in an autoclave, the bottom glass plate is arranged on an objective table, the objective table is provided with a light-transmitting through hole, and the light-transmitting through hole is opposite to the observation position of the glass model.
8. The apparatus of claim 7, wherein the stage is located inside the autoclave and the DC voltage regulator is located outside the autoclave.
9. The vertical adjustment device for multistage micrometer displacements for microscopic experiments according to claim 7, wherein an objective lens is disposed above the glass mold for microscopic visualization experiments, and the objective lens extends from the outside of the autoclave to the inside of the autoclave.
10. The apparatus of claim 7, wherein the stage is mounted on and movable up and down along a vertical guide rail by a screw, and the screw is connected to a stepping motor, the stepping motor is connected to an adjustment knob, the adjustment knob is disposed outside the autoclave, and the vertical guide rail is disposed inside the autoclave.
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| CN202022903100.9U CN214122564U (en) | 2020-12-04 | 2020-12-04 | Multistage micron displacement vertical adjusting device for microcosmic experiment |
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