CN116819749A - Electric microscope objective lens converter, high-precision positioning method thereof and microscope - Google Patents

Electric microscope objective lens converter, high-precision positioning method thereof and microscope Download PDF

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Publication number
CN116819749A
CN116819749A CN202310692346.1A CN202310692346A CN116819749A CN 116819749 A CN116819749 A CN 116819749A CN 202310692346 A CN202310692346 A CN 202310692346A CN 116819749 A CN116819749 A CN 116819749A
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CN
China
Prior art keywords
turntable
objective lens
positioning
magnetic
motor
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.)
Pending
Application number
CN202310692346.1A
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Chinese (zh)
Inventor
康军
康志灿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motic China Group Co Ltd
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Motic China Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Motic China Group Co Ltd filed Critical Motic China Group Co Ltd
Priority to CN202310692346.1A priority Critical patent/CN116819749A/en
Publication of CN116819749A publication Critical patent/CN116819749A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/24—Base structure
    • G02B21/248—Base structure objective (or ocular) turrets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • G02B7/14—Mountings, adjusting means, or light-tight connections, for optical elements for lenses adapted to interchange lenses
    • G02B7/16—Rotatable turrets

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Lens Barrels (AREA)

Abstract

The application discloses an electric microscope objective lens converter, a high-precision positioning method thereof and a microscope, wherein the converter comprises a chassis and a turntable, a plurality of objective lenses are arranged on the turntable, and the turntable is rotationally connected to the chassis and driven to rotate by a motor; further comprises: the radial magnetizing magnet is used for feeding back the rotating angle of the turntable and is arranged on the turntable; the magnetic angle sensor is used for detecting the magnetic angle of the radial magnetizing magnet and is relatively fixed with the chassis; and the processing module is used for reading the magnetic angles of the radial magnetizing magnets acquired by the magnetic angle sensors in real time, comparing the read magnetic angles with the positioning magnetic angles of the target objective lenses in real time, and controlling the motor to stop rotating when the read magnetic angles are equal to the positioning magnetic angles of the target objective lenses. The application avoids the complicated procedures of installing and adjusting the sensor corresponding to each objective lens.

Description

Electric microscope objective lens converter, high-precision positioning method thereof and microscope
Technical Field
The application relates to the technical field of microscopes, in particular to an electric microscope objective lens converter, a high-precision positioning method thereof and a microscope.
Background
It is well known that microscopes have the effect of magnifying the observation, and that small deviations in the positioning of the objective lens transducer can lead to observation problems. If the electric objective lens converter has poor repeated positioning accuracy, the position of the target observed before is shifted after the target is switched back to the original objective lens, and the target is difficult to find. If the positioning accuracy is poor, the optical axis of the microscope is not perpendicular to the objective table, and the phenomenon that one side of an image is clear and the other side of the image is blurred under high power occurs. In order to solve this problem, in the prior art, the hole position recognition of the objective lens converter uses sensors such as hall elements and magnets or photoelectric switches. For example, chinese application No. 201811021298.9 discloses a hall switch-based objective lens control device, which includes a magnetic detector disposed on a rotating plate and corresponding to a mechanical zero position; the Hall switch is electrically connected with the motor, is used for sensing a magnetic detection body on the rotating plate and correspondingly sending a return-to-zero signal to the motor, and when the rotating plate rotates to a mechanical zero position, the Hall switch senses the magnetic detection body and sends a return-to-zero signal, and the motor drives displacement data of the rotating plate to return to zero; when the rotating plate rotates to the positioning position, the motor stops driving. However, the above objective lens control device based on the hall switch can only accurately position a specific objective lens (for example, the objective lens with a specific multiple mentioned in the background art of the application of the present application), when each objective lens needs to be accurately positioned, the hall switch capable of sending different signals needs to be set up corresponding to each objective lens, so as to be used as a code for identifying the objective lens, therefore, the sensor needs to be installed and adjusted corresponding to each hole site, which is complicated in procedure and is unfavorable for improving the production efficiency.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the application provides an electric microscope objective lens converter, a high-precision positioning method thereof and a microscope, which can accurately position each objective lens when rotating to a using position, and avoid complicated procedures of installing and adjusting a sensor at each hole site.
The technical scheme adopted for solving the technical problems is as follows: an electric microscope objective lens converter comprises a motor, a chassis and a turntable, wherein a plurality of objective lenses are arranged on the turntable at intervals along the circumferential direction of the turntable, and the turntable is rotationally connected to the chassis and driven to rotate by the motor; further comprises:
the radial magnetizing magnet is used for feeding back the rotating angle of the turntable and is arranged on the turntable;
the magnetic angle sensor is used for detecting the magnetic angle of the radial magnetizing magnet and is relatively fixed with the chassis;
and the processing module is used for reading the magnetic angles of the radial magnetizing magnets acquired by the magnetic angle sensors in real time, comparing the read magnetic angles with the positioning magnetic angles of the target objective lenses in real time, and controlling the motor to stop rotating when the read magnetic angles are equal to the positioning magnetic angles of the target objective lenses.
Further, the magnetic angle sensor is opposite to the radial magnetizing magnet, and the distance between the magnetic angle sensor and the radial magnetizing magnet is 0.5-3 mm.
Further, the radial magnetizing magnet is located at the center of the turntable.
Further, the magnetic angle sensor is mounted on a detection circuit board mounted on the chassis and located above the turntable.
Further, the system also comprises a switching module for selecting the positioning magnetic angle of the objective lens, wherein the switching module is triggered by people and sends a signal to the processing module.
Further, the motor is connected with the turntable in a transmission way through a gear transmission assembly, the gear transmission assembly comprises a driving gear and a driven gear, the driving gear is fixed on an output shaft of the motor, the driven gear is integrally formed or fixedly connected with the turntable, and the driving gear is meshed with the driven gear.
Further, positioning grooves are formed in the peripheral edges of the rotary table corresponding to the objective lenses respectively, positioning spring plates are arranged on the chassis, and the tail ends of the positioning spring plates are clamped into the corresponding positioning grooves when the rotary table rotates in place.
Furthermore, the tail end of the positioning spring plate is a positioning bearing or a positioning roller, and the positioning groove is V-shaped, U-shaped or semicircular.
Further, the motor is a motor with small motor shaft self-locking force, and/or the turntable is provided with a plurality of objective lens mounting holes which are distributed along the circumferential direction at intervals, the plurality of objective lens mounting holes are in one-to-one correspondence with the plurality of objective lenses, and each objective lens is detachably connected or non-detachably connected with the corresponding objective lens mounting hole respectively.
The application also provides a high-precision positioning method of the electric microscope objective lens converter, wherein a plurality of objective lenses which are arranged at intervals along the circumferential direction of the turntable of the microscope objective lens converter are arranged on the turntable, and the turntable is driven to rotate by a motor; the radial magnetizing magnet for feeding back the rotating angle of the turntable is arranged on the turntable, the magnetic angle of the radial magnetizing magnet is detected and read, the magnetic angle is compared with the positioning magnetic angle of the target objective lens when the target objective lens is in a correct working position in real time, and the motor is controlled to stop rotating when the magnetic angle is equal to the positioning magnetic angle of the target objective lens.
The application further provides a microscope comprising the electric microscope objective lens converter.
Compared with the prior art, the application has the following beneficial effects:
1. the application adopts the radial magnetizing magnet, the magnetic angle sensor and the processing module to form an electronic positioning system by matching with a motor, and utilizes different magnetic angle values of each objective lens to realize accurate positioning when each objective lens rotates to a working position, thereby avoiding complicated procedures of installing and adjusting the sensor corresponding to each objective lens.
2. The motor adopts the motor with small motor shaft self-locking force, so that the electric control and the manual control are ensured not to be mutually influenced.
The application is described in further detail below with reference to the drawings and examples; the application is not limited to the embodiments, but a high-precision positioning method and a microscope for an objective lens converter of an electric microscope.
Drawings
FIG. 1 is a schematic diagram of an objective lens changer of the present application;
FIG. 2 is a cross-sectional view of an objective lens changer of the present application;
FIG. 3 is a top view of the objective lens changer of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 1;
the device comprises a motor 1, a chassis 2, a turntable 3, a turntable 31, an objective lens mounting hole 32, a positioning groove 4, a driving gear 5, a driven gear 6, a radial magnetizing magnet 7, a magnetic angle sensor 8, a detection circuit board 9, a positioning spring piece 10 and a positioning bearing.
Detailed Description
In the present application, in the description, the directions or positional relationships indicated by "up", "down", etc. are used based on the directions or positional relationships shown in the drawings, only for convenience of describing the present application, and are not intended to indicate or imply that the apparatus must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the scope of protection of the present application. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
Referring to fig. 1-4, an objective lens converter for an electric microscope according to the present application includes a motor 1, a chassis 2, and a turntable 3, wherein the turntable 3 is rotatably connected to the chassis 2 and is driven to rotate by the motor 1. The turntable 3 is provided with a plurality of objective lenses (not shown in the figure) arranged at intervals along the circumferential direction, specifically, the turntable 3 is provided with a plurality of objective lens mounting holes 31 arranged at intervals along the circumferential direction, the plurality of objective lens mounting holes 31 are in one-to-one correspondence with the plurality of objective lenses, each objective lens is detachably connected or non-detachably connected with the corresponding objective lens mounting hole 31 respectively, specifically, the inner side surface of the objective lens mounting hole 31 is provided with threads for fixing the objective lens, namely, the objective lens is in threaded connection with the objective lens mounting hole 31, but the application is not limited thereto, and the threaded connection mode can be replaced by a buckle connection mode or the like.
The application further comprises a radial magnetizing magnet 6 and a magnetic angle sensor 7, wherein the radial magnetizing magnet 6 is used for feeding back the rotation angle of the turntable 3, the radial magnetizing magnet 6 is arranged on the turntable 3, and in particular, the radial magnetizing magnet 6 is embedded in the central position of the upper surface of the turntable 3, as shown in fig. 2. The magnetic angle sensor 7 is used for detecting the magnetic angle of the radial magnetizing magnet 6, and the magnetic angle sensor 7 is fixed on the chassis 2 and is opposite to the radial magnetizing magnet 6. Specifically, the magnetic angle sensor 7 is mounted on a detection circuit board 8, and the detection circuit board 8 is mounted on the chassis 2 and above the turntable 3, as shown in fig. 2. The application also comprises a processing module (not shown in the figure), wherein the processing module stores the positioning magnetic angles of each objective lens when the objective lenses are in the correct working positions, reads the magnetic angles of the radial magnetizing magnets 6 acquired by the magnetic angle sensors 7 in real time, compares the read magnetic angles with the positioning magnetic angles of the objective lenses in real time, and controls the motor 1 to stop rotating when the read magnetic angles are equal to the positioning magnetic angles of the objective lenses. The objective lens is the objective lens which is currently turned to the correct working position for observation, i.e. the objective lens which is currently used. The magnetic angle sensor 7 is in communication connection with the processing module through the detection circuit board 8.
The application also comprises a switching module (not shown) for selecting the positioning magnetic angle of the objective lens, which is triggered manually and sends a signal to the processing module. The switching module can be a key module, a touch screen and the like, and in the processing module, each positioning magnetic angle corresponds to the objective lens one by one, and the positioning magnetic angles of the objective lenses are different from each other, so that the target objective lens can be selected by selecting the positioning magnetic angles. The characters and the color rings are arranged on the objective lens and can be used for distinguishing different objective lenses, and each positioning magnetic angle stored by the processing module can be associated with the characters and/or the color rings on the objective lens so as to distinguish the corresponding positioning magnetic angles of each objective lens.
In this embodiment, the motor 1 is in transmission connection with the turntable 3 through a gear transmission assembly, the gear transmission assembly specifically includes a driving gear 4 and a driven gear 5, the driving gear 4 is fixed on an output shaft of the motor 1, the driven gear 5 is integrally formed or fixedly connected to the turntable 3, and the driven gear 5 is located at the periphery of the turntable 3, and the driving gear 4 is meshed with the driven gear 5, but the specific structure of the gear transmission assembly is not limited thereto.
As a preferred mode, the peripheral edge of the upper end of the turntable 3 is provided with a positioning groove 32 corresponding to each objective lens respectively, the chassis 2 is provided with a positioning spring piece 9, when the turntable 3 rotates in place, the tail end of the positioning spring piece 9 is clamped into the corresponding positioning groove 32, specifically, the tail end of the positioning spring piece 9 is a positioning bearing 10, and the positioning bearing 10 can be replaced by a positioning roller and the like and belongs to equivalent replacement. When the turntable 3 is positioned in the correct viewing position, the positioning bearing 10 snaps into the positioning groove 32. The positioning groove 32 is generally V-shaped, U-shaped, semicircular, or the like, and matches the diameter of the positioning bearing 10, and specifically, in this embodiment, the positioning groove 32 is V-shaped, as shown in fig. 4. When the turntable 3 is positioned in the correct viewing position, the positioning bearing 10 can be snapped into the positioning groove 32. The positioning bearing 10 is in rolling friction when moving on the turntable 3, and the positioning bearing 10 rolls to the position where the positioning groove 32 can be easily clamped into the lowest position of the positioning groove 32 due to the elastic force of the positioning elastic sheet 9. When the user manually operates the turntable 3 to switch the objective lens, the positioning bearing 10 is snapped into the bottom of the positioning groove 32 as a correct positioning position.
As a preferred embodiment, the motor 1 of the present application employs a motor with a small self-locking force of a motor shaft (i.e., an output shaft of the motor), so that electric control and manual control do not affect each other. The prior art scheme does not relate to the self-locking force of a motor shaft, and in fact, the driving gear is locked due to the fact that the larger motor shaft self-locking force is difficult to rotate by hand, and the driving gear and the driven gear engaged with the driving gear are also locked, so that the user can become difficult to manually switch the objective lens, and even cannot manually operate the objective lens. In addition, because the elasticity of the positioning spring piece is limited, the elasticity of the positioning spring piece is insufficient to rotate the turntable due to the large motor shaft self-locking force, and the positioning bearing cannot be correctly clamped into the bottom position of the positioning groove during mechanical positioning, so that the positioning accuracy of the objective lens is affected.
In the application, a five-hole microscope objective lens converter is taken as an example, and the distance between the center of an objective lens mounting hole 31 and the center of a circle of a turntable 3 is 27.435mm. If a magnetic angle sensor 7 with 14bit resolution is adopted, the angle resolution is 0.022 degrees, and the corresponding displacement of the objective lens is 10um; if the magnetic angle sensor 7 with 18bit resolution is adopted, the angle resolution is 0.0014 degrees, and the corresponding displacement of the objective lens is 0.66um; if the magnetic angle sensor 7 with 21bit resolution is adopted, the angle resolution is 0.00017 degrees, and the corresponding displacement of the objective lens is 0.08um. According to different application requirements, a suitable magnetic angle sensor 7 is selected to obtain satisfactory positioning accuracy. The assembly requirements of the magnetic angle sensor 7 and the radial magnetizing magnet 6 are loose, the distance between the two is usually 0.5-3 mm, the magnetic angle sensor 7 can detect the magnetic field change of the radial magnetizing magnet 6, and the installation angle is not required. The magnetic angle sensor 7 has a magnetic field strength judging function, so that the radial magnetizing magnet 6 can be mounted more easily.
When the objective lens is switched, the detection circuit board 8 always keeps static, the turntable 3 rotates to drive the radial magnetizing magnet 6 arranged at the center of the turntable to rotate, so that the magnetic angle of the radial magnetizing magnet 6 changes, and the magnetic angle sensor 7 above the turntable can detect the magnetic angle change of the radial magnetizing magnet 6, so that the rotating angle of the turntable 3 is obtained, and the actual position of the objective lens is obtained.
The positioning magnetic angle of each objective lens can be obtained through testing. The specific method comprises the following steps: the turntable is manually rotated, the correct observation position of the turntable is determined by other auxiliary testing means (such as visual cooperation with a cross reticle and a cross reticle), and the magnetic angle value of the radial magnetizing magnet 6 acquired by the magnetic angle sensor 7 at the moment is read and used as the positioning magnetic angle of the current objective lens. According to this method, the magnetic angle value of each objective lens in the correct working position is obtained in turn. The set of positioning magnetic angle values are stored in a processing module, and the information is read when the processing module is electrified and used as a basis for controlling the turntable 3 to rotate in place when the objective lens is electrically switched. This process is called calibration. Calibration can be performed again if necessary, ensuring that the magnetic angle value always coincides with the correct working position (i.e. viewing position) of the objective lens.
Each objective lens has different positioning magnetic angle values, and the values can be used as positioning points when the objective lens is electrically switched, and can also identify which objective lens hole position is currently, so that the complicated procedures of installing and adjusting the sensor at each hole position are avoided.
The processing module takes the magnetic angle data of the radial magnetizing magnet 6 read by the magnetic angle sensor 7 as feedback, and forms a closed-loop control system together with the motor 1. During operation, a user selects a positioning magnetic angle corresponding to the target objective lens through operating the switching module, namely, the objective lens which is needed to be used currently is selected. When the motor 1 is controlled to rotate, the processing module reads the magnetic angle value (namely the objective lens position) of the radial magnetizing magnet 6 acquired by the magnetic angle sensor 7 in real time, compares the magnetic angle value with the positioning magnetic angle of the objective lens (namely the target objective lens) to be used currently in real time, and combines a motor 1 motion control algorithm (such as a PID algorithm) to realize the accurate positioning of the rotating angle of the turntable 3.
The application also provides a high-precision positioning method of the electric microscope objective lens converter, wherein a plurality of objective lenses are arranged on a turntable of the microscope objective lens converter at intervals along the circumferential direction of the turntable, a motor is used for driving the turntable to rotate, a radial magnetizing magnet for feeding back the rotating angle of the turntable is arranged on the turntable, the magnetic angle of the radial magnetizing magnet is detected and read, the magnetic angle is compared with the positioning magnetic angle when the target objective lens is in a correct working position in real time, and the motor is controlled to stop rotating when the magnetic angle and the positioning magnetic angle are equal.
Specifically, radial magnetizing magnets are arranged at the center of the turntable.
As a preferable mode, a magnetic angle sensor is adopted to detect the magnetic angle measured by the radial magnetizing magnet in real time, a detection circuit board where the magnetic angle sensor is positioned is fixed on a chassis above the turntable and is opposite to the radial magnetizing magnet, and the distance between the detection circuit board and the radial magnetizing magnet is controlled to be 0.5-3 mm.
The measurement method of the positioning magnetic angle, the selection method of the positioning magnetic angle of the objective lens, and the like are the same as those described above, please refer to the corresponding description section above, and the details are not repeated here.
The application provides a microscope comprising an electric microscope objective lens converter according to the application as described above.
For the objective lens converter of the electric microscope, the high-precision positioning method thereof, the structure and working principle of the microscope, etc., please refer to the description of the foregoing, and the details are not repeated here.
The application relates to an electric microscope objective lens converter, a high-precision positioning method thereof and a microscope, and parts not related to the electric microscope objective lens converter are the same as or can be realized by adopting the prior art.
The above embodiments are only used for further illustrating an objective lens converter of an electric microscope, a high-precision positioning method thereof and a microscope, but the application is not limited to the embodiments, and any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the application falls within the scope of the technical proposal of the application.

Claims (10)

1. An electric microscope objective lens converter comprises a motor, a chassis and a turntable, wherein a plurality of objective lenses are arranged on the turntable at intervals along the circumferential direction of the turntable, and the turntable is rotationally connected to the chassis and driven to rotate by the motor; the method is characterized in that: further comprises:
the radial magnetizing magnet is used for feeding back the rotating angle of the turntable and is arranged on the turntable;
the magnetic angle sensor is used for detecting the magnetic angle of the radial magnetizing magnet and is relatively fixed with the chassis;
and the processing module is used for reading the magnetic angles of the radial magnetizing magnets acquired by the magnetic angle sensors in real time, comparing the read magnetic angles with the positioning magnetic angles of the target objective lenses in real time, and controlling the motor to stop rotating when the read magnetic angles are equal to the positioning magnetic angles of the target objective lenses.
2. The electric microscope objective changer according to claim 1, wherein: the magnetic angle sensor is opposite to the radial magnetizing magnet, and the distance between the magnetic angle sensor and the radial magnetizing magnet is 0.5-3 mm.
3. The electric microscope objective changer according to claim 1, wherein: the radial magnetizing magnet is positioned at the center of the turntable; the magnetic angle sensor is arranged on a detection circuit board which is arranged on the chassis and is positioned above the turntable.
4. The electric microscope objective changer according to claim 1, wherein: the system also comprises a switching module for selecting the positioning magnetic angle of the target objective lens, wherein the switching module is triggered manually and sends a signal to the processing module.
5. The electric microscope objective changer according to claim 1, wherein: the motor is connected with the turntable in a transmission way through a gear transmission assembly, the gear transmission assembly comprises a driving gear and a driven gear, the driving gear is fixed on an output shaft of the motor, the driven gear is integrally formed or fixedly connected with the turntable, and the driving gear is meshed with the driven gear.
6. The electric microscope objective changer according to claim 1, wherein: the periphery edge of the turntable is provided with a positioning groove corresponding to each objective lens respectively, the chassis is provided with a positioning elastic sheet, and when the turntable rotates in place, the tail end of the positioning elastic sheet is clamped into the corresponding positioning groove.
7. The electric microscope objective lens changer as recited in claim 6, wherein: the tail end of the positioning spring piece is a positioning bearing or a positioning roller, and the positioning groove is V-shaped, U-shaped or semicircular.
8. The electric microscope objective changer according to claim 1, wherein: the motor is a motor with small motor shaft self-locking force, and/or the turntable is provided with a plurality of objective lens mounting holes which are distributed along the circumferential direction at intervals, the plurality of objective lens mounting holes are in one-to-one correspondence with the plurality of objective lenses, and each objective lens is detachably connected or non-detachably connected with the corresponding objective lens mounting hole respectively.
9. A high-precision positioning method of an electric microscope objective lens converter comprises the steps that a plurality of objective lenses which are arranged at intervals along the circumferential direction of a turntable of the microscope objective lens converter are arranged, and the turntable is driven to rotate by a motor; the method is characterized in that: the radial magnetizing magnet for feeding back the rotating angle of the turntable is arranged on the turntable, the magnetic angle of the radial magnetizing magnet is detected and read, the magnetic angle is compared with the positioning magnetic angle of the target objective lens when the target objective lens is in a correct working position in real time, and the motor is controlled to stop rotating when the magnetic angle is equal to the positioning magnetic angle of the target objective lens.
10. A microscope, characterized in that: comprising an electric microscope objective lens converter according to any one of claims 1-8.
CN202310692346.1A 2023-06-12 2023-06-12 Electric microscope objective lens converter, high-precision positioning method thereof and microscope Pending CN116819749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310692346.1A CN116819749A (en) 2023-06-12 2023-06-12 Electric microscope objective lens converter, high-precision positioning method thereof and microscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310692346.1A CN116819749A (en) 2023-06-12 2023-06-12 Electric microscope objective lens converter, high-precision positioning method thereof and microscope

Publications (1)

Publication Number Publication Date
CN116819749A true CN116819749A (en) 2023-09-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310692346.1A Pending CN116819749A (en) 2023-06-12 2023-06-12 Electric microscope objective lens converter, high-precision positioning method thereof and microscope

Country Status (1)

Country Link
CN (1) CN116819749A (en)

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