CN111089851A - Magneto-optical testing device - Google Patents
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- CN111089851A CN111089851A CN201911410313.3A CN201911410313A CN111089851A CN 111089851 A CN111089851 A CN 111089851A CN 201911410313 A CN201911410313 A CN 201911410313A CN 111089851 A CN111089851 A CN 111089851A
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- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 239000000523 sample Substances 0.000 claims abstract description 71
- 230000008878 coupling Effects 0.000 claims abstract description 37
- 238000010168 coupling process Methods 0.000 claims abstract description 37
- 238000005859 coupling reaction Methods 0.000 claims abstract description 37
- 230000005291 magnetic effect Effects 0.000 claims abstract description 36
- 239000013307 optical fiber Substances 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 abstract description 11
- 230000005284 excitation Effects 0.000 abstract description 8
- 230000003993 interaction Effects 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- -1 activation centers Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000008204 material by function Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000004891 communication Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
- G01N2021/1727—Magnetomodulation
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Abstract
The invention relates to the technical field of magneto-optical materials, in particular to a magneto-optical testing device, which comprises a first electrode mechanism and a second electrode mechanism which are arranged at intervals, wherein an accommodating space for forming a magnetic field is arranged between the first electrode mechanism and the second electrode mechanism, and a testing combination mechanism is arranged in the accommodating space; the test combination mechanism comprises a test base, wherein a coupling optical fiber probe, a reflector and an aspherical mirror are arranged on the test base, the coupling optical fiber probe, the reflector and the aspherical mirror are arranged in a delta shape, a light path which is led out by the coupling optical fiber probe and reflected by the reflector and then reaches the aspherical mirror is formed, and a sample support for bearing a sample is arranged on the outer side of the aspherical mirror, which is positioned on the light path ejection side. After the device is arranged in a magnetic field, the relative angle between the bearing base and the rotating base can be adjusted, so that the sample on the bearing base is driven to form an included angle with a magnetic line, and the magneto-optical performance of the sample is researched by matching with the excitation of an optical fiber probe.
Description
Technical Field
The invention relates to the technical field of magneto-optical materials, in particular to a magneto-optical testing device.
Background
The magneto-optical dual-function material with magneto-optical interaction has great development value and very potential application in the fields of advanced magneto-optical devices and the like. Different magneto-optical materials have some common characteristics: first, for most photomagnetic phenomena, magnetic ions, i.e., activation centers, can be in different valence states in matter; secondly, during the photoinduction process, the object is usually in an unbalanced state, that is, in the above-mentioned various phenomena, photoinduced charge transfer is always in a competitive state with thermal equilibrium; when the intensity of the illumination is changed, one is a case where the (magnetic) symmetry is changed, and the other is a case where the (magnetic) symmetry is not changed. The application is to continue exploring the source of the magneto-optical effect; secondly, various new magneto-optical effects are discovered; thirdly, developing the optomagnetic functional material with practical value.
The rare earth ion doped material with the photomagnetic functional material has excellent magnetic property, rich 4f energy level and excellent light stability, so that people develop a plurality of rare earth doped functional materials and the rare earth doped functional materials are widely applied to the fields of optics and magnetics. However, rare earth doped materials with photomagnetic interactions are currently reported to a lesser extent. The magneto-optical dual-function material has controllable magneto-optical interaction, and has potential application in the fields of high-precision communication, aircraft navigation, detection of optical fields or magnetic fields and the like.
The magnetic-optical dual-performance test has the difficulty in researching the interaction of a magnetic field to an optical performance tester, and firstly, under the condition of stronger magnetic field strength, the angle between a magnetic material and a magnetic line of force under the magnetic field is difficult to control, and secondly, under the condition of changing high-strength magnetic field, magnetic luminous ions are put into the magnetic-optical dual-performance test, and laser or a light source is focused on a luminous body and can effectively collect the luminous performance of the luminous body.
Therefore, it is necessary to develop a test apparatus for investigating magneto-optical dual properties.
Disclosure of Invention
The invention aims to solve the problem of testing the magneto-optical performance of a material in the research of the magneto-optical performance of the material, and provides a magneto-optical testing device. Adopt the device, not only can effectively control magnetic field intensity size, can carry out diversified test to the sample through the contained angle of adjustment test sample and magnetic line of force simultaneously, utilize the exciting light to arouse that the sample is luminous and effectively survey the luminous condition of sample and at last study the magneto-optical properties of sample.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a magneto-optical testing device comprises a first electrode mechanism and a second electrode mechanism which are arranged at intervals, wherein an accommodating space for forming a magnetic field is formed between the first electrode mechanism and the second electrode mechanism, and a testing combination mechanism is arranged in the accommodating space; the test combination mechanism comprises a test base and a component on the test base, the test base is rotatably fixed between the first electrode mechanism and the second electrode mechanism, the component comprises a coupling optical fiber probe, a reflector and an aspherical mirror, the coupling optical fiber probe, the reflector and the aspherical mirror are arranged in a delta shape, a light path which is led out by the coupling optical fiber probe and is reflected by the reflector to reach the aspherical mirror is formed, and a sample support which bears a sample is arranged on the outer side of the aspherical mirror, which is positioned on the light path ejection side.
Preferably, the first electrode mechanism is provided with an electrode base, a horizontal adjusting mechanism is arranged on the electrode base, a magnetic field electrode is arranged on the horizontal adjusting mechanism, and the second electrode mechanism is arranged symmetrically to the first electrode mechanism.
Preferably, the device further comprises a device base, and the first electrode mechanism, the second electrode mechanism and the testing combination mechanism are arranged on the device base.
Preferably, the test base comprises a fixed base and a rotating base, the fixed base is fixed between the first electrode mechanism and the second electrode mechanism, the rotating base is rotatably arranged on the fixed base through a rotating structure, and the coupling optical fiber probe, the reflecting mirror and the aspherical mirror are all located on the rotating base.
Preferably, the test base is provided with a coupling support, a reflection support and a transmission support, the coupling fiber probe, the reflection mirror and the aspherical mirror are respectively arranged on the coupling support, the reflection support and the transmission support, the coupling support, the reflection support and the transmission support are arranged in a delta shape, the outer side of the transmission support is provided with a sample rack, and the sample rack is provided with a sample support.
Preferably, the coupling fiber probe is connected with a fiber group.
Preferably, the test base is provided with a calibration structure for determining the angle.
Preferably, the rotating structure is a bearing structure.
Preferably, the rotating base is sleeved on the fixed base, the top of the fixed base and the rotating base are provided with accommodating spaces, a rack is arranged at the top of the fixed base, an adjusting window is arranged on the side wall of the rotating base, an adjusting wheel matched with the rack is arranged in the adjusting window, one side of the adjusting wheel is matched with the rack, and the other side of the adjusting wheel is exposed out of the side wall of the rotating base; a main scale is arranged on the rack, and an observation window is arranged on the rotating base corresponding to the scale; an auxiliary scale structure is arranged at the inner top of the rotating base and comprises a rotating shaft fixed at the inner top of the rotating base, an internal gear matched with the inner side of the rack is arranged at the lower part of the rotating shaft, a scale wheel is arranged at the upper part of the rotating shaft, and the scale wheel is driven by the internal gear to coaxially rotate; the observation window covers the target gear.
Preferably, the lower portion of the fixed base is provided with a clamping groove, the inner wall of the rotating base is provided with a clamping ring, and the fixed base is limited into a whole through the matching of the clamping ring and the clamping groove.
The invention has the beneficial effects that: after the device is arranged in a magnetic field, the relative angle between the bearing base and the rotating base can be adjusted, so that the sample on the bearing base is driven to form an included angle with a magnetic line, and the magneto-optical performance of the sample is researched by matching with the excitation of an optical fiber probe. The device angle control precision is higher, has improved the accuracy of experimental result.
Drawings
Fig. 1 shows the overall structure of the invention.
Figure 2 shows a top view of the test assembly of the present invention.
Fig. 3 is a schematic diagram showing a part of the structure of the testing combination mechanism of the present invention.
Fig. 4 shows a schematic view of the combination of the fixed base and the rotating base of the present invention.
Fig. 5 shows a detailed view of the fixed base and the rotating base of the present invention.
Fig. 6 is a partial structural view of the outer side of the rotating base according to the present invention.
In the figure: 100 device bases, 101 first electrode mechanisms, 102 second electrode mechanisms, 103 accommodating spaces, 104 electrode bases, 105 horizontal adjusting mechanisms, 106 magnetic field electrodes, 200 testing combination mechanisms, 201 testing bases, 202 coupling optical fiber probes, 203 reflecting mirrors, 2014 aspherical mirrors, 205 sample holders, 206 fixing bases, 207 rotating bases, 208 coupling supports, 209 reflecting supports, 210 transmission supports, 211 sample holders, 212 optical fiber groups, 213 scale structures, 214 rotating structures, 215 protruding parts, 216 concave parts, 217 clamping grooves and 218 clamping rings; 301 rack, 302 adjusting window, 303 adjusting wheel, 304 main scale, 305 observation window, 306 auxiliary scale structure, 307 rotating shaft, 308 internal gear and 309 scale wheel.
Detailed Description
Further refinements will now be made on the basis of the representative embodiment shown in the figures. It should be understood that the following description is not intended to limit the embodiments to one preferred embodiment. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the embodiments as defined by the appended claims.
In the following detailed description, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in accordance with the embodiments. Although these embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments, it is to be understood that these examples are not limiting, such that other examples may be used and that corresponding modifications may be made without departing from the spirit and scope of the embodiments.
Specifically, referring to fig. 1 to 3, a magneto-optical testing device is provided, which specifically includes a first electrode mechanism 101 and a second electrode mechanism 102 arranged at intervals, an accommodating space 103 for forming a magnetic field is provided between the first electrode mechanism 101 and the second electrode mechanism 102, the first electrode mechanism 101 and the second electrode mechanism 102 form a uniform magnetic field, and a testing combination mechanism 200 is arranged in the accommodating space 103; by arranging the testing combination mechanism 200 in the formed uniform magnetic field, the magneto-optical performance of the sample in the magnetic field is tested and researched. The first electrode means 101 and the second electrode means 102 provide a magnetic field for the test sample, while the test combination means 200 itself provides light.
As shown in fig. 2, the test assembly 200 includes a test base 201, the test base 201 has a coupling fiber probe 202, a reflector 203 and an aspherical mirror 204, the coupling fiber probe 202, the reflector 203 and the aspherical mirror 204 are arranged in a delta shape, and form a light path which is led out by the coupling fiber probe 202, reflected by the reflector 203 and reaches the aspherical mirror 204, and a sample holder 205 for holding a sample is disposed on the outer side of the aspherical mirror 204 on the light path exit side. By using the optical path formed by the coupling fiber probe 202, the reflecting mirror 203, the aspherical mirror 204 and the three, the excitation light emitted by the coupling fiber probe 202 passes through the reflecting mirror 203 and the aspherical mirror 204 to reach the sample, so as to provide light for the sample in the magnetic field.
The spacing between the first electrode means 101 and the second electrode means 102 is adjustable so that the strength of the magnetic field can be varied by varying the spacing between the two. Specifically, the first electrode mechanism 101 has a base, a horizontal adjustment mechanism 105 is disposed on the base, a magnetic field electrode 106 is disposed on the horizontal adjustment mechanism 105, the second electrode mechanism 102 is similar to the first electrode mechanism 101 in structure and is symmetrically disposed, and the second electrode at least has a base of the first electrode. The first electrode mechanism 101 and the second electrode mechanism 102 are both disposed on one device base 100, specifically, two bases are disposed on the device base 100, the test base 201 is rotatably fixed on the device base 100 between the first electrode mechanism 101 and the second electrode mechanism 102, and the test base 201 and the device base 100 are detachably fixed. Through the relative rotation space of the test base 201, a further magnetic included angle variable can be provided for the sample, and the test range of the sample is expanded.
Regarding the test assembly mechanism 200, the test base 201 includes a fixed base 206 and a rotating base 207, the fixed base 206 is detachably fixed between the first electrode mechanism 101 and the second electrode mechanism 102, the rotating base 207 is rotatably disposed on the fixed base 206, the coupling fiber probe 202, the reflecting mirror 203 and the aspherical mirror 204 are all disposed on the rotating base 207, and more specifically, the test base 201 is provided with a coupling bracket 208, a reflecting bracket 209 and a transmission bracket 210, the coupling fiber probe 202, the reflecting mirror 203 and the aspherical mirror 204 are respectively disposed on the coupling bracket 208, the reflecting bracket 209 and the transmission bracket 210, the coupling bracket 208, the reflecting bracket 209 and the transmission bracket 210 are disposed in a delta shape, and the coupling fiber probe 202 is connected with a fiber group 212, and the fiber group 212 provides an excitation light source and a detection light source. A further way of arranging the sample is to arrange a sample holder 211 on the transmissive support 210, and a sample holder 205 on the sample holder 211. Regarding the fixing manner of the fixing base 206, an example is given, a protruding part is provided on the device base 100, the bottom of the fixing base 206 has an inner concave part matching with the protruding part, the fixing base 206 and the device base 100 can be detachably connected by sleeving the inner concave part of the fixing base 206 on the protruding part, the fixing base 206 can be taken down at any time, but the fixing base 206 cannot rotate. The boss is a non-cylindrical body.
The principle of the testing device is as follows: the first electrode mechanism 101 and the second electrode mechanism 102 provide a magnetic field for a sample, the test combination mechanism 200 bears the sample and is in the magnetic field, an excitation light source of a coupling optical fiber probe 202 on the test combination mechanism 200 emits excitation light, the excitation light vertically enters the aspherical mirror 204 after being reflected by the reflecting mirror 203, the excitation light passes through the aspherical mirror 204 and then is irradiated on the sample, the light reflected by the excited sample reaches the coupling optical fiber probe 202 through the aspherical mirror 204 and the reflecting mirror 203, a detection light source of the coupling optical fiber probe 202 receives the signal, and the purpose of analyzing the magneto-optical performance of the sample is achieved through analysis of an emission signal and a recovery signal. The rotating base 207 can rotate relative to the fixed base 206, so that the mutual rotation of the two is utilized to change the direction of the sample and each component in the magnetic field, and the magneto-optical performance of the sample is further researched in a mode of increasing variables. The test base 201 is provided with a calibration structure 213 for determining the angle, and the rotation angle is determined by the calibration structure 213.
With regard to the above-described structure, in order to improve the angle adjustment accuracy of the apparatus, the above-described scale structure 213 is omitted, and a further improvement is particularly made in the relevant structure.
As shown in fig. 4-6, the following is specific:
the rotating base is rotatably arranged on the fixed base through a rotating structure, and the rotating structure is a bearing structure; the two are rotationally connected through a bearing structure; as shown in fig. 4, the rotating base is sleeved on the fixed base, and the top of the fixed base and the rotating base have accommodating spaces therein. A rack is arranged in the accommodating space, particularly the top of the fixed base, the rack is an annular or annular part, teeth are arranged on the inner side and the outer side of the rack, an adjusting window is arranged on the side wall of the rotating base, an adjusting wheel matched with the rack is arranged in the adjusting window, one side of the adjusting wheel is matched with the rack, one side of the adjusting wheel is exposed out of the side wall of the rotating base, and the adjusting wheel is adjusted on the outer side so as to drive the rotating base to rotate under the action of the rack; meanwhile, a main scale is arranged on the rack, the main scale is matched with the rack, an observation window is arranged on the rotating base corresponding to the scale and used for observing the scale on the rack scale, specifically, the scale at the position is a number taking the degree as a unit, and only the precision is required to be determined to be within the degree; to further determine the rotation angle, it needs to be expressed in seconds, and therefore, specifically: an auxiliary scale structure is arranged at the inner top of the rotating base and comprises a rotating shaft fixed at the inner top of the rotating base, an internal gear matched with the inner side of the rack is arranged at the lower part of the rotating shaft, when the rotating base rotates, the internal gear and the inner side of the rack displace to drive the rotating shaft to rotate, a scale wheel is arranged at the upper part of the rotating shaft, and the scale wheel coaxially rotates under the drive of the internal gear; the mark gear is of a large wheel diameter, second scales or numbers are arranged on the mark gear, and the observation window covers the mark gear. When the rotating base rotates relative to the fixed base, the specific rotating angle can be accurately determined through the displayed figures of the degree and the displayed figures of the second in the observation window.
In order to stabilize the fixed base and the rotating base, a clamping groove is formed in the lower portion of the fixed base, a clamping ring is arranged on the inner wall of the rotating base, and the fixed base is limited into a whole through the matching of the clamping ring and the clamping groove.
The structure can accurately determine the rotation angle so as to improve the precision of the whole testing process and the accuracy of the testing structure.
For purposes of explanation, specific nomenclature is used in the above description to provide a thorough understanding of the described embodiments. It will be apparent, however, to one skilled in the art that these specific details are not required in order to practice the embodiments described above. Thus, the foregoing descriptions of specific embodiments described herein are presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. It will be apparent to those skilled in the art that certain modifications, combinations, and variations can be made in light of the above teachings.
Claims (10)
1. A magneto-optical testing device, characterized by: the device comprises a first electrode mechanism and a second electrode mechanism which are arranged at intervals, wherein an accommodating space for forming a magnetic field is formed between the first electrode mechanism and the second electrode mechanism, and a testing combination mechanism is arranged in the accommodating space; the test combination mechanism comprises a test base and a component on the test base, the test base is rotatably fixed between the first electrode mechanism and the second electrode mechanism, the component comprises a coupling optical fiber probe, a reflector and an aspherical mirror, the coupling optical fiber probe, the reflector and the aspherical mirror are arranged in a delta shape, a light path which is led out by the coupling optical fiber probe and is reflected by the reflector to reach the aspherical mirror is formed, and a sample support which bears a sample is arranged on the outer side of the aspherical mirror, which is positioned on the light path ejection side.
2. A magneto-optical testing device according to claim 1, wherein: the first electrode mechanism is provided with an electrode base, a horizontal adjusting mechanism is arranged on the electrode base, a magnetic field electrode is arranged on the horizontal adjusting mechanism, and the second electrode mechanism and the first electrode mechanism are symmetrically arranged.
3. A magneto-optical testing device according to claim 1, wherein: the device comprises a device base, and a first electrode mechanism, a second electrode mechanism and a testing combination mechanism are arranged on the device base.
4. A magneto-optical testing device according to claim 1, wherein: the test base comprises a fixed base and a rotating base, the fixed base is fixed between the first electrode mechanism and the second electrode mechanism, the rotating base is rotatably arranged on the fixed base through a rotating structure, and the coupling fiber probe, the reflecting mirror and the aspherical mirror are all located on the rotating base.
5. A magneto-optical testing device according to claim 1, wherein: the test base is provided with a coupling support, a reflection support and a transmission support, the coupling fiber probe, the reflection mirror and the aspheric mirror are respectively arranged on the coupling support, the reflection support and the transmission support, the coupling support, the reflection support and the transmission support are arranged in a delta shape, a sample frame is arranged on the outer side of the transmission support, and a sample support is arranged on the sample frame.
6. A magneto-optical testing device according to claim 1, wherein: the coupling optical fiber probe is connected with an optical fiber group.
7. A magneto-optical testing device according to claim 1, wherein: the test base is provided with a scale structure for determining the angle in a matching way.
8. A magneto-optical testing device according to claim 1, wherein: the rotating structure is a bearing structure.
9. A magneto-optical testing device according to claim 1, wherein: the rotating base is sleeved on the fixed base, the top of the fixed base and the rotating base are provided with accommodating spaces, a rack is arranged at the top of the fixed base, an adjusting window is arranged on the side wall of the rotating base, an adjusting wheel matched with the rack is arranged in the adjusting window, one side of the adjusting wheel is matched with the rack, and the other side of the adjusting wheel is exposed out of the side wall of the rotating base; a main scale is arranged on the rack, and an observation window is arranged on the rotating base corresponding to the scale; an auxiliary scale structure is arranged at the inner top of the rotating base and comprises a rotating shaft fixed at the inner top of the rotating base, an internal gear matched with the inner side of the rack is arranged at the lower part of the rotating shaft, a scale wheel is arranged at the upper part of the rotating shaft, and the scale wheel is driven by the internal gear to coaxially rotate; the observation window covers the target gear.
10. A magneto-optical testing device according to claim 1, wherein: the lower part of the fixed base is provided with a clamping groove, the inner wall of the rotating base is provided with a clamping ring, and the fixed base is limited into a whole through the matching of the clamping ring and the clamping groove.
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| CN201911410313.3A CN111089851B (en) | 2019-12-31 | 2019-12-31 | Magneto-optical testing device |
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| CN201911410313.3A CN111089851B (en) | 2019-12-31 | 2019-12-31 | Magneto-optical testing device |
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| CN111089851A true CN111089851A (en) | 2020-05-01 |
| CN111089851B CN111089851B (en) | 2024-07-19 |
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Cited By (3)
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| CN112362581A (en) * | 2020-10-28 | 2021-02-12 | 华南理工大学 | Non-magnetic sample cavity for measuring magnetic field effect |
| CN112540046A (en) * | 2020-11-27 | 2021-03-23 | 洛阳师范学院 | Up-conversion real-time reversible dynamic synchronous testing device for ferroelectric film material |
| CN116886182A (en) * | 2023-09-06 | 2023-10-13 | 山东智光通信科技有限公司 | Strong magnetic field transmission performance detection equipment of optic fibre |
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| CN112362581B (en) * | 2020-10-28 | 2022-02-15 | 华南理工大学 | Non-magnetic sample cavity for measuring magnetic field effect |
| CN112540046A (en) * | 2020-11-27 | 2021-03-23 | 洛阳师范学院 | Up-conversion real-time reversible dynamic synchronous testing device for ferroelectric film material |
| CN116886182A (en) * | 2023-09-06 | 2023-10-13 | 山东智光通信科技有限公司 | Strong magnetic field transmission performance detection equipment of optic fibre |
| CN116886182B (en) * | 2023-09-06 | 2023-12-08 | 山东智光通信科技有限公司 | Strong magnetic field transmission performance detection equipment of optic fibre |
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