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an electromagnetic generator
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A generating device and electromagnetic technology, applied in the field of electromagnetic generating device and magnetic field generating device, can solve the problems of pole blocking the light path, the influence of the magnetic field strength and the size of the uniform area, and the inability to carry out experiments, so as to achieve the effect of optical focusing.
Active Publication Date: 2021-06-11
江苏美德磁电科技有限公司
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Problems solved by technology
[0003] However, when the experiment needs to irradiate parallel light on the measurement area of the test sample in the direction of the uniform magnetic field, the pole will block the light path, making it impossible to carry out the experiment
[0004] In the existing solutions, a single pole or an optical path is often used in the center of the pole to solve this problem, but the single pole will cause the magnetic field strength and the size of the uniform area to be greatly affected, while the The way of the central optical path will affect the accuracy of optical measurement because the distance between the lens and the measurement sample is too far
Method used
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Embodiment 1
[0033] see Figure 1 to Figure 6 , an electromagnetic generating device, including a coil 1, copper foil 2, a pole head 3, an objective lens 4, an objective lens sleeve 5, a pole 6, a yoke 7, a rotating and fixed cylinder 8, an axially fixed part 9, a threaded outer Column 10, transition ring 11, threaded inner column 12, rotating and fixing cylinder cover 13, rotating parts 14, rotating handle 15, yoke 2 16, the coil 1 and rotating and fixing cylinder 8 are respectively fixed on yoke 1 by screws 7, the coil 1 and the rotating and fixed cylinder 8 are distributed on both sides of the yoke 7, the two sides of the objective lens sleeve 5 are provided with positioning protrusions, and the objective lens sleeve 5 can be inserted into the pole through the positioning protrusions on both sides In the groove in the middle part of 6, one end of the objective lens sleeve 5 is connected to the objective lens 4, and the bottom of the objective lens 4 is provided with a screw thread, whic...
Embodiment 2
[0043] see Figure 1 to Figure 8 , an electromagnetic generating device, including a coil 1, copper foil 2, a pole head 3, an objective lens 4, an objective lens sleeve 5, a pole 6, a yoke 7, a rotating and fixed cylinder 8, an axially fixed part 9, a threaded outer Column 10, transition ring 11, threaded inner column 12, rotating and fixed cylinder cover 13, rotating parts 14, rotating handle 15, yoke 2 16; the objective lens 4 set in the pole head 3 has high light transmission and aberration correction And the characteristics of large numerical aperture, its spatial resolution is as low as 500mm, and the remaining structural parts of this embodiment are the same as Embodiment 1.
[0044] The working principle of the present invention is:
[0045] By adjusting the axial position of the rotating part 14, in the case of cooperation with the threaded outer column 10, the axial position adjustment of the pole 6 and the pole head 3 can be realized by rotating the rotating handle ...
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Abstract
The invention discloses an electromagnetic generating device, which belongs to the field of scientific research instruments and meters, and includes a coil, an objective lens sleeve, a rotating and fixed cylinder and rotating parts. The coil and the rotating and fixed cylinder are respectively fixed on a yoke by screws. The objective lens sleeve is inserted into the groove in the middle part of the pole, one end of the objective lens sleeve is connected to the objective lens, the objective lens is arranged in the slot in the middle part of the pole head, and the pole head is fixed on the pole pole by screws; the pole pole, the pole head, the objective lens It is inserted into the coil together with the objective lens sleeve; the objective lens is built into the pole, so that the light can be focused near the measurement point through the light, so that high-precision optical measurement can still be obtained without canceling the pole; through The rotating parts can respectively adjust the polar pole and the objective lens in a direction parallel to the direction of the uniform magnetic field, which can not only achieve the purpose of adjusting the magnetic field strength and the size of the uniform area, but also realize the function of optical focusing.
Description
technical field [0001] The invention belongs to the field of scientific research instruments and meters, and relates to an electromagnetic generating device, in particular to a magnetic field generating device with a built-in microscope objective lens in a pole and adjustable focal length, which is suitable for measuring the direction of the magnetic field generated by light and the magnetic field generating device Among parallel optical experiments. Background technique [0002] In some optical research experiments, in order to obtain the uniform strong magnetic field environment required for measurement, permanent magnets, electromagnets and other magnetic field generating devices must be installed with poles to ensure the strength of the magnetic field and the size of the uniform area. [0003] However, when the experiment needs to irradiate parallel light on the measurement area of the test sample in the direction of the uniform magnetic field, the pole will block the ...
Claims
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