CN110398260B - Electromagnetic generating device - Google Patents
Electromagnetic generating device Download PDFInfo
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- CN110398260B CN110398260B CN201910682808.5A CN201910682808A CN110398260B CN 110398260 B CN110398260 B CN 110398260B CN 201910682808 A CN201910682808 A CN 201910682808A CN 110398260 B CN110398260 B CN 110398260B
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- pole
- objective lens
- rotary
- yoke
- generating device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microscoopes, Condenser (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses an electromagnetic generating device, which belongs to the field of scientific research instruments and meters and comprises a coil, an objective lens sleeve, a rotary fixing cylinder and a rotary part, wherein the coil and the rotary fixing cylinder are respectively fixed on a yoke I through screws; the pole, the pole head, the objective lens and the objective lens sleeve are inserted into the coil together; the objective lens is arranged in the pole, so that light rays can be focused near a measuring point through the light rays, and high-precision optical measurement can still be obtained without canceling the pole; the pole column and the objective lens can be respectively adjusted in the direction parallel to the direction of the uniform magnetic field through the rotating piece, so that the purposes of adjusting the intensity of the magnetic field and the size of the uniform area can be achieved, and the optical focusing effect can also be achieved.
Description
Technical Field
The invention belongs to the field of scientific research instruments and meters, relates to an electromagnetic generating device, and particularly relates to a magnetic field generating device with a built-in microscope objective lens in a pole and adjustable focal length, which is suitable for optical experiments in which light to be measured needs to be parallel to the direction of a magnetic field generated by the magnetic field generating device.
Background
In some optical scientific research experiments, in order to obtain a uniform strong magnetic field environment required by measurement, magnetic field generating devices such as permanent magnets, electromagnets and the like must be provided with pole columns to ensure the strength of a magnetic field and the size of a uniform area.
However, when the experiment requires that the parallel light in the direction of the uniform magnetic field is emitted to the measurement area of the test sample, the pole blocks the light path, thereby preventing the experiment from being performed.
In the existing solution, this problem is often solved by adopting a single pole column or a mode of reserving a light path at the center of the pole column, but the single pole column can cause the magnetic field intensity and the size of the uniform area to be greatly influenced, and the mode of the central light path can influence the precision of optical measurement due to the fact that the lens is too far away from the measurement sample.
Therefore, in order to solve the above problems, there is a need for a device that can improve the measurement accuracy of an optical experimental apparatus while ensuring the magnetic field strength and the size of the uniform region.
Disclosure of Invention
In view of the defects in the prior art, an object of the embodiments of the present invention is to provide an electromagnetic generating device, which improves the measurement accuracy of an optical experimental apparatus under the condition that the magnetic field strength and the size of a uniform region are not greatly affected, so as to solve the above-mentioned problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
an electromagnetic generating device comprises a coil, an objective lens sleeve, a rotary fixing cylinder and a rotary part, wherein the coil and the rotary fixing cylinder are respectively fixed on a first yoke through screws; the pole, the pole head, the objective lens and the objective lens sleeve are inserted into the coil together, and copper foil is wound on the coil;
the inner part of the rotary fixing barrel is provided with an axial fixing part, the inner part of the axial fixing part is connected with a thread outer column, the thread outer column and a transition ring arranged at the end part of the thread outer column are sequentially sleeved on a thread inner column respectively, one end of the rotary part is inserted on the rotary fixing barrel cover, a bulge at the other end of the rotary part is inserted into the thread inner column, and the thread inner column penetrates through an upper through hole of the yoke and then is inserted into a groove in the middle of the pole.
As a further scheme of the invention, the coil and the rotary fixing cylinder are distributed on two sides of the first yoke.
As a further scheme of the invention, the two sides of the objective lens sleeve are provided with positioning bulges, and the objective lens sleeve is inserted into the groove in the middle of the pole through the positioning bulges on the two sides.
As a further development of the invention, the objective is provided with a thread at its base, which thread engages in a thread in the objective sleeve.
As a further scheme of the invention, the end faces of the thread outer column and the thread inner column are respectively provided with a bulge used for matching with a rotating part.
As a further aspect of the present invention, one end of the rotating part is provided with an annular protrusion.
As a further aspect of the present invention, the axial fixing part is mounted on the rotationally fixed cylinder cover by a screw, and the rotationally fixed cylinder cover is mounted on the rotationally fixed cylinder body by a screw.
As a further proposal of the invention, two rotary handles are screwed on the rotary part.
As a further scheme of the invention, the bottom of the first yoke iron is fixed at one end of the second yoke iron, and the two ends of the second yoke iron are connected with the first yoke iron.
In summary, compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the invention, the objective lens is arranged in the pole, so that light can be focused near a measurement point through the light, and high-precision optical measurement can still be obtained without canceling the pole;
the electromagnetic generating device can also adjust the pole and the objective lens in the direction parallel to the direction of the uniform magnetic field through the rotating piece, so that the purposes of adjusting the magnetic field intensity and the size of the uniform area can be realized, and the optical focusing effect can also be realized.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is an assembled perspective view of an electromagnetic generating device of the present invention.
Fig. 2 is an exploded perspective view of an electromagnetic generating device of the present invention.
FIG. 3 is a schematic view of a threaded post portion of an electromagnetic generating device of the present invention.
FIG. 4 is a cross-sectional view of an objective sleeve of an electromagnetic generating device of the present invention.
Fig. 5 is a cross-sectional view of a pole of an electromagnetic generator according to the present invention.
FIG. 6 is a cross-sectional view of a pole head of an electromagnetic generating device of the present invention.
Fig. 7 is a schematic view of the magnetic field of an electromagnetic generating device according to the present invention.
Fig. 8 is an enlarged schematic view of a pole head at a point a in fig. 7 of an electromagnetic generating device according to the present invention.
Reference numerals: the device comprises a 1-coil, a 2-copper foil, a 3-pole head, a 4-objective lens, a 5-objective lens sleeve, a 6-pole, a 7-yoke iron I, an 8-rotary fixed cylinder, a 9-axial fixed part, a 10-threaded outer column, an 11-transition ring, a 12-threaded inner column, a 13-rotary fixed cylinder cover, a 14-rotary part, a 15-rotary handle and a 16-yoke iron II.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 to 6, an electromagnetic generating device includes a coil 1, a copper foil 2, a pole head 3, an objective 4, an objective sleeve 5, a pole 6, a first yoke 7, a first rotary fixing cylinder 8, an axial fixing part 9, a threaded outer cylinder 10, a transition ring 11, a threaded inner cylinder 12, a second rotary fixing cylinder cover 13, a rotary part 14, a rotary handle 15, and a second yoke 16, wherein the coil 1 and the first rotary fixing cylinder 8 are respectively fixed on the first yoke 7 through screws, the coil 1 and the first rotary fixing cylinder 8 are distributed on two sides of the first yoke 7, positioning protrusions are arranged on two sides of the objective sleeve 5, the objective sleeve 5 can be inserted into a groove in the middle of the pole 6 through the positioning protrusions on two sides, one end of the objective sleeve 5 is connected with the objective 4, a thread is arranged at the bottom of the objective 4, and can be screwed into the thread in the objective sleeve 5 through the thread; the objective lens 4 is arranged in a clamping groove in the middle of the pole head 3, the pole head 3 is fixed on the pole 6 through a screw, and the pole head 3 is connected with the pole 6 and inserted into the coil 1; the pole 6, the pole head 3, the objective lens 4 and the objective lens sleeve 5 are all inserted into the coil 1.
The coil 1 is wound with a copper foil 2 to produce a controllable magnetic field under the condition of electrifying.
The inner part of the rotary fixing barrel body 8 is provided with an axial fixing part 9, the inner part of the axial fixing part 9 is connected with a thread outer column 10, the thread outer column 10 and a transition ring 11 arranged at the end part of the thread outer column 10 are sequentially sleeved on a thread inner column 12 respectively, the end faces of the thread outer column 10 and the thread inner column 12 are provided with protrusions matched with the rotary part 14 respectively, one end of the rotary part 14 is inserted on a rotary fixing barrel cover 13, axial positioning is achieved through an annular protrusion at one end of the rotary part 14, and a protrusion at the other end of the rotary part 14 is inserted in the thread inner column 12.
One end of the rotating part 14 is inserted into the rotary fixing cylinder cover 8, and the other end is inserted into a matching notch left by the threaded inner column 12 and is fixed by the axial fixing part 9 and installed on the rotary fixing cylinder cover 13 together with the rotary fixing cylinder cover 8.
The axial fixing part 9 is mounted on the rotary fixing barrel cover 13 through screws, and axial positioning of the threaded outer column 10, the transition circular ring 11, the threaded inner column 12 and the rotary part 14 is achieved.
The rotary fixing cylinder cover 13 is arranged on the rotary fixing cylinder body 8 through a screw;
two rotary handles 15 are screwed on the rotary part 14.
The threaded inner column 12 penetrates through a through hole in the first yoke 7 and then is inserted into a groove in the middle of the pole 6.
The bottom of the first yoke iron 7 is fixed at one end of the second yoke iron 16, and the two ends of the second yoke iron 16 are connected with the first yoke iron 7, so that the coils 1 and the pole heads 3 on the two first yoke irons 7 are oppositely arranged.
Example 2
Referring to fig. 1 to 8, an electromagnetic generating device includes a coil 1, a copper foil 2, a pole head 3, an objective 4, an objective sleeve 5, a pole 6, a first yoke 7, a rotary fixing cylinder 8, an axial fixing part 9, a threaded outer column 10, a transition ring 11, a threaded inner column 12, a rotary fixing cylinder cover 13, a rotary part 14, a rotary handle 15, and a second yoke 16; the objective lens 4 arranged in the polar head 3 has the characteristics of high light transmission, aberration correction and large numerical aperture, the spatial resolution is as low as 500mm, and the rest of the structure of the embodiment is the same as that of the embodiment 1.
The working principle of the invention is as follows:
by adjusting the axial position of the rotating part 14, under the condition of matching with the threaded outer column 10, the axial position of the pole 6 and the pole head 3 can be adjusted by rotating the rotating handle 15, so that the intensity and the uniform area size of the magnetic field generated by the magnetic field generating device are adjusted.
By adjusting the axial position of the rotating part 14, under the condition of matching with the threaded inner column 12, the axial position of the objective sleeve 5 and the objective 4 can be adjusted by rotating the rotating handle 15, so that the distance between the objective 4 and a measuring area is adjusted, and the purpose of optical focusing is achieved.
Through with the utmost point head 3 is removed the back from utmost point post 6, adjusts rotatory 14 axial position of rotating part under the cooperation condition with screw thread inner prop 12, the accessible is rotatory with objective 4 back-out utmost point post 6 to the rotation handle 15 is rotatory, thereby realizes changing the purpose of other specification objective 4.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.
Claims (7)
1. An electromagnetic generating device comprises a coil (1), an objective lens sleeve (5), a rotary fixing cylinder (8) and a rotary part (14), and is characterized in that the coil (1) and the rotary fixing cylinder (8) are respectively fixed on a yoke I (7) through screws, the objective lens sleeve (5) is inserted into a groove in the middle of an electrode post (6), one end of the objective lens sleeve (5) is connected with an objective lens (4), the objective lens (4) is arranged in a clamping groove in the middle of an electrode head (3), and the electrode head (3) is fixed on the electrode post (6) through screws; the pole (6), the pole head (3), the objective lens (4) and the objective lens sleeve (5) are inserted into the coil (1) together, and the coil (1) is wound with the copper foil (2);
the novel cylindrical pole is characterized in that an axial fixing part (9) is arranged inside the rotary fixing barrel body (8), a threaded outer column (10) is connected inside the axial fixing part (9), the threaded outer column (10) and a transition ring (11) arranged at the end of the threaded outer column (10) are sequentially sleeved on a threaded inner column (12) respectively, one end of a rotary part (14) is inserted into the rotary fixing barrel cover (13), a protrusion at the other end of the rotary part (14) is inserted into the threaded inner column (12), the threaded inner column (12) penetrates through a through hole in a yoke iron I (7) and then is inserted into a groove in the middle of the pole (6), protrusions matched with the rotary part (14) are arranged on the end faces of the threaded outer column (10) and the threaded inner column (12) respectively, and an annular protrusion is arranged at one end of the rotary part (14).
2. An electromagnetic generating device according to claim 1, characterized in that the coil (1) and the rotationally fixed cylinder (8) are distributed on both sides of a yoke one (7).
3. The electromagnetic generating device according to claim 2, characterized in that the objective sleeve (5) is provided with positioning protrusions on both sides, and the objective sleeve (5) is inserted into the groove in the middle of the pole (6) through the positioning protrusions on both sides.
4. An electromagnetic generating device according to claim 3, characterized in that the bottom of the objective (4) is provided with a thread, which is screwed into a thread in the objective sleeve (5).
5. An electromagnetic generating device according to claim 1, characterized in that said axial fixing element (9) is mounted by means of screws on a rotationally fixed cylinder cover (13), the rotationally fixed cylinder cover (13) being mounted by means of screws on the rotationally fixed cylinder (8).
6. An electromagnetic generating device according to claim 1, characterized in that said rotary element (14) is screwed with two rotary handles (15).
7. The electromagnetic generator according to claim 6, characterized in that the bottom of the first yoke (7) is fixed at one end of the second yoke (16), and the first yoke (7) is connected to both ends of the second yoke (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682808.5A CN110398260B (en) | 2019-07-26 | 2019-07-26 | Electromagnetic generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682808.5A CN110398260B (en) | 2019-07-26 | 2019-07-26 | Electromagnetic generating device |
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| Publication Number | Publication Date |
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| CN110398260A CN110398260A (en) | 2019-11-01 |
| CN110398260B true CN110398260B (en) | 2021-06-11 |
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| CN201910682808.5A Active CN110398260B (en) | 2019-07-26 | 2019-07-26 | Electromagnetic generating device |
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| CN113086253B (en) * | 2021-04-09 | 2023-04-07 | 北京空天技术研究所 | Explosive bolt buffering and collecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE1804199C3 (en) * | 1968-03-26 | 1975-12-18 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Corpuscular beam device for the optional imaging of a specimen or its diffraction diagram |
| JP2001273653A (en) * | 2000-03-29 | 2001-10-05 | Tdk Corp | Objective lens driving device for optical pickup |
| KR100486279B1 (en) * | 2002-11-13 | 2005-04-29 | 삼성전자주식회사 | An optical pickup actuator and an optical disk drive using the same |
| US20070097530A1 (en) * | 2005-11-03 | 2007-05-03 | Industrial Technology Research Institute | Optical devices |
| CN102509689B (en) * | 2011-11-08 | 2014-03-12 | 北京航空航天大学 | Objective anastigmator of electronic microscope |
| CN106872923B (en) * | 2017-01-17 | 2019-09-27 | 长沙天恒测控技术有限公司 | The device and method of light beam positioning magnetic center |
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Address after: 223800 road K2, Siyang Economic Development Zone (East District), Suqian City, Jiangsu Province Patentee after: Jiangsu Meide magnetoelectric Technology Co.,Ltd. Address before: 223700 road K2, Siyang Economic Development Zone (East District), Suqian City, Jiangsu Province Patentee before: Suqian Meide Machinery Co.,Ltd. |
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