Interactive physics teaching spectrometer and interactive teaching system based on spectrometer

Abstract

The present invention discloses an interactive physics teaching spectrometer and an interactive teaching system based on the spectrometer. The interactive physics teaching spectrometer includes a spectrometer and an intelligent device. The light emitted by the slit device is changed into parallel light by changing the axial position of the second lens of the collimator. A beam splitter prism is arranged in the telescope to divide the parallel light into a first light path and a second light path, and images are formed in the eyepiece of the telescope and the first camera device above the telescope respectively. The first camera device is connected to the intelligent device and the collected first image is displayed and calibrated on the intelligent device, thereby reducing the difficulty of operation and improving the learning efficiency. The interactive teaching system adopts the above-mentioned interactive physics teaching spectrometer, and is respectively arranged in a teacher-end unit and at least one student-end unit. A macroscopic observation camera assembly is also arranged in the teacher-end unit and the student-end unit to shoot the operation steps of the operator in real time. The teacher-end unit and the student-end unit are connected to realize teaching interaction.

Description

Technical Field

[0001] The invention relates to the field of teaching instruments, and in particular to an interactive physics teaching spectrometer and an interactive teaching system based on the spectrometer. Background Art

[0002] A spectrometer is a precision instrument for accurately measuring angles, also known as a goniometer. It is a commonly used experimental instrument in optical experiments. Its basic principle is to allow light to pass through a slit and a focusing lens to form a beam of parallel light, which enters the telescope after reflection or refraction by optical elements and forms an image on the focal plane of the telescope. Through the eyepiece, the deflection angles of various light rays are observed and measured, thereby obtaining optical parameters such as refractive index, wavelength, dispersion rate, diffraction angle, etc. At the same time, the basic optical structure of the spectrometer is the basis of many optical instruments (such as prism spectrometers, grating spectrometers, spectrophotometers, monochromators, etc.). In courses such as "University Physics Experiments", "General Physics Experiments", and "Optical Basic Experiments", spectrometers are key experimental instruments. Therefore, being familiar with the basic structure, adjustment principles, methods, and techniques of the spectrometer has a universal guiding significance for adjusting and using other optical instruments. In physical experiments, it can not only cultivate students' basic experimental skills, but also cultivate students' ability to apply theoretical knowledge to solve practical problems. Therefore, it is a must-do experiment in university physics experiments.

[0003] When using a spectrometer to observe and measure experimental data, the spectrometer needs to be adjusted before use. Generally, the telescope is adjusted to receive parallel light by the autocollimation method, and then the telescope and the stage are adjusted to be perpendicular to the rotation axis by the successive approximation method. Finally, the collimator is adjusted to be perpendicular to the rotation axis and generate parallel light. However, there are the following defects and shortcomings:

[0004] 1. The spectrometer device is precise and has a complex structure. It is necessary to observe the standard image in the eyepiece while adjusting the operating handwheel. There are many adjustment steps and links, and many operating positions are far away, which is inconvenient to operate. Once the adjustment is improper, the experiment may not be successful. Students often cannot complete the experimental tasks smoothly within the specified time.

[0005] 2. Observing through a small-range tube for a long time will cause visual fatigue to the observer, making the experiment impossible to complete.

[0006] 3. Because the instrument has too many operating positions, it is inconvenient for students to watch the teacher's operation, and the teacher's teaching effect is not ideal.

[0007] 4. Since the correctness of the operation needs to be verified through the observation eyepiece, it is not convenient for the teacher to check the students' operation results, it is difficult to communicate in real time, and it is impossible to provide accurate guidance to students.

[0008] The Chinese patent application number 201810636378.9 proposes a spectrometer for physics experiment teaching. The spectrometer for physics experiment teaching is provided with an adjustment device in its structure. The device is placed in a suitable position, the telescope bulb is turned on, the telescope and the parallel light tube are adjusted, and the main disc locking block is slowly rotated. At the same time, the measurement can be completed by observing the scale on the main disc. If data of different wavelengths are to be recorded, the controller is started by the remote control, and the stage rotary block is driven by the motor and the transmission mechanism to change the wavelength, so that the experimental measurement data presents diversity. This scheme adopts an electric scheme, which is convenient for teaching examples to explain the principles and improve the teaching efficiency, but it is also impossible to train students' actual operation ability, and the cost of the instrument has increased significantly.

[0009] Chinese patent application number 201820874798.6 proposes a spectrometer for physics experiment teaching. The spectrometer for physics experiment teaching is provided with a lifting device, which is connected to a motor through a controller so that the motor drives a transmission mechanism, which simplifies the operation and avoids poor observation. However, the solution still has the same problems as above.

[0010] The Chinese patent application number 202022282133.6 proposes a spectrometer automated measurement device based on a visual algorithm. This device adds an openmv device to the telescope to replace the human eye for observing spectral lines, and uses a stepper motor in conjunction with a worm gear for precise and controllable transmission. The movement of the stepper motor is controlled by the openmv device, and finally the deflection angle of the light is calculated based on the number of rotation steps of the stepper motor and displayed on the display. The entire measurement and calculation process of this measuring device is replaced by machine automation to replace traditional manual operation. This solution has the same problem as the above that it cannot train students' actual operation ability and the cost of the instrument has increased significantly.

[0011] Chinese patent application number 202021490443.0 proposes a spectrometer for optical experiments, which can adjust the inclination angle of the collimator and the telescope through the setting of the first adjusting screw and the second adjusting screw, so as to adapt to different prism heights placed on the object plate; through the setting of the connecting shaft and the second connecting plate, the position of the telescope can be adjusted with the cooperation of the scale dial, thereby solving the problem of the operator moving with the telescope; by rotating the handle and the transmission mechanism, the base is driven to rotate together, so as to facilitate the adjustment of the entire device. Although this scheme improves the flexibility of the device and facilitates operation, it also has the above-mentioned problems.

[0012] Chinese patent application number 201920722704.8 proposes a spectrometer for physics experiment teaching, which uses a stage level to check whether the fixed plate is parallel, then illuminates it through a parallel light tube prism, and then views the illuminated prism through a telescope. When looking for a split light source, the angle of the telescope is adjusted by adjusting the adjustment plate, and then the marked position is viewed through a scale. The scale can achieve a variety of light focusing change measurement degrees, and the adjustment of the telescope is achieved through the cooperation of a threaded rod and a rotating wheel to avoid the complexity of telescope adjustment. However, this solution is not convenient for teaching guidance, inspection and assessment, and cannot train students' practical operation capabilities and understand the basic principles of optical instruments.

[0013] The Chinese patent application number CN2017202132.0 proposes a spectrometer for physics experiment teaching. The spectrometer for physics experiment teaching can adjust the spectrometer more quickly by improving the eyepiece telescope. At the same time, a bubble level and an indicator standard are installed on the parallel light tube, the telescope, and the stage to guide the adjustment, which greatly improves the teaching efficiency. However, this solution is still not convenient for teaching guidance, inspection and assessment.

[0014] The Chinese patent application number CN2013202363.7 proposes a spectrometer experiment teaching instrument, which is equipped with a zoom camera, which can well realize the overall explanation of the spectrometer experiment teaching, solve the problem of the connection between the detailed explanation and the overall explanation in the teaching, and at the same time, use the photoelectric detection module technology and the motor to realize the rapid positioning of the zoom camera to improve the teaching efficiency; however, this solution is the same as the above, which is inconvenient for teaching guidance, inspection and assessment, and cannot train students' practical operation ability and understanding of the basic principles of optical instruments. Summary of the invention

[0015] In view of the technical problems mentioned in the above background technology, the purpose of the embodiments of the present application is to propose an interactive physics teaching spectrometer and an interactive teaching system based on the spectrometer to solve the technical problems mentioned in the above background technology part.

[0016] In a first aspect, an embodiment of the present application proposes an interactive physics teaching spectrometer, comprising a spectrometer and an intelligent device, the spectrometer comprising a base bracket and a slit device, a collimator, a telescope, an eyepiece, a first camera device, a stage, and a rotating stage arranged on the base bracket, the slit device is connected to the collimator, and the light emitted by the slit device is converted into parallel light through the collimator, the eyepiece and the first camera device are installed on the telescope, the telescope comprises a tube body, a focusing lens is provided at one end of the tube body close to the collimator, a first interface for connecting the eyepiece and a second interface for connecting the first camera device are provided on the tube body, a beam splitter prism is arranged inside the tube body, the beam splitter prism is used to split the parallel light converged by the focusing lens into a first light path for imaging on the eyepiece through the first interface and a second light path for imaging on the first camera device through the second interface, the first camera device is used to collect a first image formed by imaging the second light path and send it to the intelligent device, the intelligent device is connected to the first camera device and receives and displays the first image.

[0017] In some embodiments, the focusing lens includes a first lens and a first focusing device, the first focusing device is used to adjust the axial position of the first lens to achieve convergence of parallel light, and the collimator includes a second lens and a second focusing device, the second focusing device is used to adjust the axial position of the second lens to convert the light emitted by the slit device into parallel light.

[0018] In some embodiments, the first focusing device and the second focusing device adopt a threaded rotation structure or a gear rack transmission structure.

[0019] In some embodiments, the threaded rotation structure includes a locking handwheel, an axial screw, a limit pin, a fine-tuning tube, a pressure ring, a coarse-adjusting tube, a light tube and a magnet. The first lens or the second lens is fixedly connected to the inside of the fine-tuning tube through the pressure ring, the limit pin is fixedly connected to the fine-tuning tube, the axial screw is fixedly connected to the coarse-adjusting tube, and the magnet is fixedly connected to the light tube. The fine-tuning tube and the coarse-adjusting tube are connected by a thread. A small axial displacement of the first lens or the second lens is achieved by rotating the fine-tuning tube. The coarse-adjusting tube is connected to the light tube cylinder, and the relative rotation of the coarse-adjusting tube and the light tube is limited by the axial screw. When the fine-tuning tube is pushed and pulled, the rapid axial displacement of the first lens or the second lens is achieved by the axial translation of the coarse-adjusting tube, and the coarse-adjusting tube is tightened by the locking handwheel to fix the axial position of the first lens or the second lens.

[0020] In some embodiments, a zoom lens is provided between the first camera device and the beam splitter prism, and the zoom lens is used to change the imaging magnification of the second optical path.

[0021] In some embodiments, the first camera device is fixed to the tube body by locking pins, screws, and a connecting ring. The connecting ring is used to connect the first camera device to the zoom lens. The connecting ring is fixed to the tube body by screws, and the zoom lens is fastened to the first camera device by locking pins.

[0022] On the second aspect, an embodiment of the present application proposes an interactive teaching system based on a spectrometer, including a teacher-end unit and at least one student-end unit, both of which adopt the above-mentioned interactive physics teaching spectrometer, the student-end unit includes a first spectrometer and a first smart device, the teacher-end unit includes a second spectrometer and a second smart device, the second smart device is connected to at least one first smart device in a wired or wireless manner and realizes data transmission interaction between the teacher-end unit and at least one student-end unit, the second smart device of the teacher-end unit sends a control instruction to the first smart device of the student-end unit to realize control of the first smart device and the first spectrometer.

[0023] In some embodiments, the teacher-end unit and / or the student-end unit also includes a macro camera device assembly, and the macro observation camera assembly is arranged around the second spectrometer and / or the first spectrometer. The macro observation camera assembly is connected to the second smart device and / or the first smart device and sends the second image captured in real time on the stage and rotating stage of the second spectrometer and / or the first spectrometer to the second smart device and / or the first smart device.

[0024] In some embodiments, the macro observation camera assembly includes a base, a connecting rod, a second camera device and an observation lens, the second camera device is fixedly connected to the observation lens, the connecting rod is fixed on the base and connected to the second camera device to support and adjust the height and / or angle of the second camera device and the observation lens.

[0025] In some embodiments, the first smart device and the second smart device have an alignment scale display and / or zero point calibration function.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The interactive physics teaching spectrometer of the present invention adds a dichroic prism inside the telescope to split the focused parallel light into two paths, which are imaged on the eyepiece and digitally imaged on the first camera device respectively. This not only realizes the function of visual observation, ensures that students' visual observation and vision adjustment abilities can be cultivated, and exercises students' hands-on ability, but also allows the imaging of the first camera device to be directly observed on the smart device, thereby reducing the difficulty of operation and optimizing the operating posture.

[0028] (2) The spectrometer-based interactive teaching system of the present invention adds a first intelligent device, a second intelligent device and a macro observation camera component, which allows students to observe the teacher's operation details from a distance and allows teachers to check the students' operation status in real time, thereby improving learning efficiency and learning effects.

[0029] (3) The spectrometer-based interactive teaching system of the present invention adjusts the axial position of the slit device by changing it to adjusting the axial position of the collimator lens, so that the operating position is much closer to the observation position and closer to the operator's observation position, which makes the operation more convenient and reduces the operation intensity.

[0030] (4) The spectrometer-based interactive teaching system of the present invention can be used for individual learning by students, and can also be used for multi-person interaction or teacher-student interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the present invention. It will be easy to recognize other embodiments and many expected advantages of the embodiments because they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. The same reference numerals refer to corresponding similar parts.

[0032] Figure 1 A schematic diagram of the structure of an interactive physics teaching spectrometer according to an embodiment of the present invention is shown;

[0033] Figure 2 A schematic diagram showing the structure of a collimator of an interactive physics teaching spectrometer according to an embodiment of the present invention is shown;

[0034] Figure 3 A schematic diagram showing the structure of a telescope of an interactive physics teaching spectrometer according to an embodiment of the present invention is shown;

[0035] Figure 4 A schematic structural diagram of an interactive teaching system based on a spectrometer according to an embodiment of the present invention is shown;

[0036] Figure 5 A structural schematic diagram of a macroscopic observation camera assembly of a spectrometer-based interactive teaching system according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0037] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings. It should be noted that the dimensions and sizes of the components in the accompanying drawings are not in proportion, and the sizes of certain components may be highlighted for the sake of clarity.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] refer to Figure 1-3 The embodiment of the present invention provides an interactive physics teaching spectrometer, including a spectrometer 1 and an intelligent device 2. The spectrometer 1 includes a base bracket 11 and a slit device 12, a collimator 13, a telescope 14, an eyepiece 15, a first camera device 16, a stage 17 and a rotating table 18 arranged on the base bracket 11. The base bracket 11 is the base of the entire spectrometer 1, which is used to fix and place other components, and can also be used to accommodate electrical components such as electrical appliances and switches. The slit device 12 is installed at one end of the collimator 13, and the two are connected in a detachable matching manner. The slit device 12 is at the focal position of the second lens 131 of the collimator 13. After passing through the slit of the slit device 12 and the collimator 13, the light is converted into parallel light and emitted. The light emitted by the slit device 12 is converted into parallel light through the collimator 13. The parallel light is deflected by an angle after passing through a specimen placed on the stage 17. The deflected parallel light is parallel to the optical axis of the telescope 14 through the telescope 14 connected to the rotating table 18. The telescope 14 includes a tube body 141. A focusing lens 142 is provided at one end of the tube body 141 close to the collimator 13. Parallel light passes through the focusing lens 142 of the telescope 14 and then is split by the beam splitter prism 142. The tube body 141 is provided with a first interface for connecting the eyepiece 15 and a second interface for connecting the first camera device 16. The eyepiece 15 adopts an Abbe self-collimating eyepiece. A beam splitter prism 143 is provided inside the tube body 141. The beam splitter prism 143 is used to split the parallel light converged by the focusing lens 142 into a first light path for forming an image on the eyepiece 15 through the first interface and a second light path for forming an image on the first camera device 16 through the second interface. Specifically, the eyepiece 15 is provided at one end of the tube body 141 away from the collimator 13, and the first camera device 16 is provided on the tube body 141 above the beam splitter prism 142. The first camera device 16 is used to collect the first image formed by the imaging of the second optical path and send it to the smart device 2. The smart device 2 is connected to the first camera device 16 and receives and displays the first image captured by the first camera device 16 in real time. The smart device 2 can issue a shooting instruction to the first camera device 16 to control the first camera device 16 to shoot the imaging of the second optical path.

[0040] In a specific embodiment, a zoom lens 19 is provided between the first camera device 16 and the beam splitter prism 143, and the zoom lens 19 is used to change the imaging magnification of the second optical path. The first optical path converges at the focus of the focusing lens 142, and then the imaging of the slit can be observed through the eyepiece 15, and the slit is aligned with the middle reference line of the eyepiece 15 by rotating the stage 17, and then the rotation angle of the stage 17 is read, so that optical parameters such as refractive index, wavelength, dispersion rate, diffraction angle, etc. can be obtained through calculation and analysis. The second optical path converges on the photosensitive surface of the first camera device 16 through the zoom lens 19 to form a digital image, which can then be transmitted to the smart device 2 through wired or wireless transmission, and displayed through professional software on the smart device 2 for the user to observe through the screen. Specifically, a first wireless communication module is provided inside the first camera device 16, and the first wireless communication module is used to wirelessly connect the first camera device 16 to the smart device 2, and the first wireless communication module can be a Bluetooth or wifi module, etc. The professional software is also provided with a calibration image, which can be kept the same as the divided image of the eyepiece 15, so that the effect of observation in the eyepiece 15 is the same as the first image, and can also be further refined to add more scales and indicators, which can further simplify, optimize or refine the readings. At the same time, in order to ensure that the reference point and scale when observing the eyepiece 15 are consistent with the reference point and scale of the first image, the professional software has at least an alignment scale display and / or a zero point calibration function. The professional software can be an existing image display software, and its specific implementation method is not within the scope of protection of this application, so it will not be repeated.

[0041] In a specific embodiment, reference Figure 2The collimator 13 includes a second lens 131, a second focusing device 132, and a second light tube 133. The second focusing device 132 is used to adjust the axial position of the second lens 131 to convert the light emitted by the slit device 12 into parallel light. The second focusing device 132 includes a second locking hand wheel 1321, a second axial screw 1322, a second limiting pin 1323, a second fine-tuning tube 1324, a second pressing ring 1325, a second coarse-tuning tube 1326, and a second magnet 1327. The second lens 131 is fixedly connected to the inside of the second fine-tuning tube 1324 through the second pressing ring 1325, the second limiting pin 1323 is fixedly connected to the second fine-tuning tube 1324, the second axial screw 1322 is fixedly connected to the second coarse-tuning tube 1326, and the second magnet 1327 is fixedly connected to the second light tube 133. The second fine-tuning tube 1324 is connected to the second coarse-tuning tube 1326 by a threaded connection. By rotating the second fine-tuning tube 1324, a small axial displacement of the second lens 131 is achieved to achieve a fine focusing effect. The second coarse-tuning tube 1326 is adjustably connected to the second optical tube 133. At the same time, the second axial screw 1322 limits the relative rotation of the second coarse-tuning tube 1326 and the second optical tube 133. When the second fine-tuning tube 1324 is pushed or pulled, the axial translation of the second coarse-tuning tube 1326 is used to achieve a rapid axial displacement of the second lens 131 to achieve a coarse focusing effect. After coarse focusing, the second coarse-tuning tube 1326 can be tightened by the second locking hand wheel 1321, and the second magnet 1327 makes the entire collimator 13 stably connected to the base frame 11. By changing the axial position of the slit device 12 to the axial position of the second lens 131 of the parallel light tube 12, the operating position is made much closer to the observation position and closer to the operator's observation position, which makes the operation more convenient and reduces the operation intensity. Accordingly, the learning efficiency and learning effect can be improved.

[0042] In a specific embodiment, reference Figure 3The focusing lens 142 of the telescope 14 includes a first lens 144 and a first focusing device 145. The first focusing device 145 is arranged on the tube body 141 to adjust the axial position of the first lens 144 to achieve convergence of parallel light. The first camera device 16 is fixed to the tube body 141 by a locking nail 1461, a screw 1462, and a connecting ring 1463. The first focusing device 145 includes a first locking hand wheel 1451, a first axial screw 1452, a first limiting nail 1453, a first fine-tuning tube 1454, a first pressing ring 1455, a first coarse-tuning tube 1456, a first light tube 1457, and a first magnet 1458. The structure of the first focusing device 145 is the same as that of the second focusing device 132. The first lens 144 is fixedly connected to the inside of the first fine-tuning tube 1454 through the first pressing ring 1455, the first limit pin 1453 is fixedly connected to the first fine-tuning tube 1454, the first axial screw 1452 is fixedly connected to the first coarse-tuning tube 1456, and the first magnet 1458 is fixedly connected to the first optical tube 1457. The first fine-tuning tube 1454 and the first coarse-tuning tube 1456 are connected by threads, and a small axial displacement of the first lens 144 is achieved by rotating the first fine-tuning tube 1454, thereby achieving a fine focusing effect. The first coarse adjustment tube 1456 is cylindrically adjustable to the first optical tube 1457, and the relative rotation of the first coarse adjustment tube 1456 and the first optical tube 1457 is limited by the first axial screw 1452. When the first fine adjustment tube 1454 is pushed or pulled, the first coarse adjustment tube 1456 is axially translated to realize the rapid axial displacement of the first lens 144, so as to achieve the coarse focusing effect. After the coarse focusing, the first coarse adjustment tube 1456 can be tightened by the first locking hand wheel 1451, and the first magnet 1458 makes the whole telescope 14 stably connected to the bracket of the rotating platform 18. The beam splitter prism 143 is fixedly connected to the tube body 141 by adhesive bonding, and the connecting ring 1463 is also fixedly connected to the tube body 141 by screws 1462. The beam splitter prism 143 realizes beam splitting, and divides the focused parallel light into a first light path and a second light path, wherein the first light path is transmitted to the eyepiece 7, and the second light path is transmitted to the variable magnification lens 19 and the first camera device 16. The connecting ring 1463 is used to precisely connect the zoom lens 19, and the zoom lens 19 is fastened by the locking pin 1461, and then the zoom lens 19 is fixedly and precisely connected to the first camera device 16. The first camera device 16 is connected to the smart device 2 to realize the display of the first image captured by the first camera device 16 on the smart device 2. The adjustment of the axial position of the first lens 144 and the second lens 131 adopts a threaded rotating structure, which has high adjustment accuracy and can be easily positioned at the focal plane position. At the same time, due to the self-locking performance of the threaded rotating structure, the stability of the instrument is also guaranteed, and it is determined that other operations or external interference will not affect the adjustment effect.

[0043] The first focusing device 145 and the second focusing device 132 mentioned above both adopt a threaded rotation structure. In addition to adopting the threaded rotation structure mentioned above, the first focusing device 145 and the second focusing device 132 may also adopt a gear rack transmission structure.

[0044] The embodiment of the present application also proposes an interactive teaching system based on a spectrometer, referring to Figure 4 , including a teacher-end unit and at least one student-end unit, both of which use the above-mentioned interactive physics teaching spectrometer. Among them, the student-end unit includes a first spectrometer 1-1 and a first intelligent device 2-1, and the teacher-end unit includes a second spectrometer 1-2 and a second intelligent device 2-2. The first intelligent device 2-1 and the second intelligent device 2-2 can be intelligent terminal devices such as computers or mobile phones. In an embodiment of the present application, the first intelligent device 2-1 uses a tablet computer, and the second intelligent device 2-2 uses a computer as a main control device. The second intelligent device 2-2 is connected to at least one first intelligent device 2-1 in a wired or wireless manner to realize data transmission and interaction between the teacher-end unit and at least one student-end unit. The second intelligent device, as a main control device, can issue control instructions to at least one first intelligent device. The second intelligent device 2-2 of the teacher-end unit sends the control instruction to the first intelligent device 2-1 of the student-end unit to control the first intelligent device 2-1 and the first spectrometer 1-1. As an example, the second smart device 2-2 of the teacher-end unit can control the first smart device 2-1 to align the first image or the second image with the ruler display and / or zero point calibration, and can even control the first camera device 16 in the first spectrometer 1-1 to capture the first image. At the same time, the interactive physics teaching spectrometers of the teacher-end unit and the student-end unit can also be equipped with a macro observation camera component 3, which can capture the actual status of each operation link of the operator and display it simultaneously through professional software. For practical convenience, the professional software can display the above two types of digital images or one of them. In one embodiment, all spectrometers, smart devices and macro observation camera components 3 are connected to the router 4 via WIFI data to form a local area network. Figure 4 As shown, three student-end units are connected to one teacher-end unit, and a macro observation camera assembly 3 is provided in the teacher-end unit. In other optional embodiments, the number and combination of student-end units, teacher-end units and macro observation camera assemblies can be reasonably selected according to actual needs.

[0045] In a specific embodiment, the macro observation camera component 3 is arranged on one side of the objective stage and the rotating table of the first spectrometer 1-1 and / or the second spectrometer 1-2, and the macro observation camera component 3 is connected to the first smart device 2-1 and / or the second smart device 2-2 and sends the second image on the objective stage and the rotating table of the first spectrometer 1-1 and / or the second spectrometer 1-2 captured in real time to the first smart device 2-1 and / or the second smart device 2-2.

[0046] In a specific embodiment, reference Figure 5 The macro observation camera assembly 3 includes a base 31, a connecting rod 32, a second camera device 33 and an observation lens 34. The second camera device 33 is fixedly connected to the observation lens 34. The connecting rod 32 is fixed to the base 31 and connected to the second camera device 33 to support and adjust the height and / or angle of the second camera device 33 and the observation lens 34. Specifically, the connecting rod 32 includes a column 321, a hand wheel 322, a height adjustment rod 323, and a gooseneck 324. The height adjustment rod 323 is adjustably connected to the column 321. Both ends of the gooseneck 324 are fixedly connected to the height adjustment rod 323 and the second camera device 33, respectively. The observation lens 34 is fixedly connected to the second camera device 34 through a C-type interface. The observation lens 34 can be focused and adjusted to achieve shooting at different distances and ranges. The second camera device 34 can be the same as the first camera device 16 or different. The second camera device 34 can achieve shooting at various angles through the rotation of the height adjustment rod 323, the up and down movement, and the twisting of the gooseneck 324, and can display the operator's operation steps in an all-round and three-dimensional manner. Specifically, the macro observation camera assembly 3 includes a second wireless communication module, which is used to wirelessly connect the second camera device 33 to the second smart device 2-2 and / or the first smart device 2-1, and the second wireless communication module can be a Bluetooth or wifi module, etc. If the macro observation camera component 3 is only set in the teacher-end unit, the teacher-end unit monitors and views the first image of any student-end unit in the local area network and the storage information of the student-end unit through the professional software of the second smart device 2-2. The teacher-end unit uses the macro observation camera component 3 to shoot the teacher's operation process, and projects the first image and / or the second image to the first smart device 2-1 of the student-end unit through professional software; any student-end unit in the local area network can be calibrated, photographed and input information through software, and fed back to the teacher-end unit; the teacher-end unit will also respond to the operation of the student-end unit in real time, so as to realize real-time interaction between the student end and the teacher end.

[0047] The macro observation camera assembly 3 can capture all the operation steps and details of the operator, and display or transmit them to the relevant personnel through professional software, so students can observe the teacher's operation from a distance, without having to gather around the teacher and the instrument to observe. The existence of the first smart device 2-1, the second smart device 2-2 and the macro observation camera assembly 3 will not limit the number of students, and will not affect the learning effect of students due to different observation positions. At the same time, a teacher-student interactive communication platform is added. The teacher can monitor and view the first image of any student terminal and the stored information or input information of the student terminal, and can also adjust the image of the student terminal, and the student terminal also feeds back the picture and information to the teacher. In addition, the first image and / or the second image can be displayed simultaneously on the first smart device 2-1 and / or the second smart device 2-2 to achieve the effect of comparative display teaching.

[0048] In the description of the present application, it is to be understood that the wording "comprising" does not exclude the presence of elements or steps not listed in the claims. The wording "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that a combination of these measures cannot be used for improvement. Any reference symbols in the claims should not be interpreted as limiting the scope. The above description is only a preferred embodiment of the present application and an illustration of the technical principles used.

[0049] Those skilled in the art should understand that the scope of the invention involved in this application is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above invention concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An interactive physics teaching spectrometer, characterized in that: The invention comprises a spectrometer and an intelligent device, wherein the spectrometer comprises a base bracket and a slit device, a collimator, a telescope, an eyepiece, a first camera device, a stage, and a rotating stage arranged on the base bracket, wherein the slit device is connected to the collimator, and the light emitted by the slit device is converted into parallel light through the collimator, the eyepiece and the first camera device are installed on the telescope, the telescope comprises a tube body, and a focusing lens is arranged at one end of the tube body close to the collimator, the focusing lens comprises a first lens and a first focusing device, the first focusing device is used to adjust the axial position of the first lens to realize the convergence of the parallel light, the collimator comprises a second lens and a second focusing device The second focusing device is used to adjust the axial position of the second lens to convert the light emitted by the slit device into the parallel light. The tube body is provided with a first interface connected to the eyepiece and a second interface connected to the first camera device. A dichroic prism is arranged inside the tube body. The dichroic prism is used to split the parallel light converged by the focusing lens into a first light path formed on the eyepiece through the first interface and a second light path formed on the first camera device through the second interface. The first camera device is used to collect a first image formed by the second light path and send it to the smart device. The smart device is connected to the first camera device and receives and displays the first image.

2. The interactive physics teaching spectrometer according to claim 1, characterized in that: The first focusing device and the second focusing device adopt a threaded rotation structure or a gear rack transmission structure.

3. The interactive physics teaching spectrometer according to claim 2, characterized in that: The threaded rotation structure includes a locking handwheel, an axial screw, a limiting pin, a fine-tuning tube, a pressure ring, a coarse-adjusting tube, a light tube and a magnet. The first lens or the second lens is fixedly connected to the inside of the fine-tuning tube through the pressure ring, the limiting pin is fixedly connected to the fine-tuning tube, the axial screw is fixedly connected to the coarse-adjusting tube, and the magnet is fixedly connected to the light tube. The fine-tuning tube and the coarse-adjusting tube are connected by threads, and a small axial displacement of the first lens or the second lens is achieved by rotating the fine-tuning tube. The coarse-adjusting tube is connected to the light tube cylinder, and the relative rotation of the coarse-adjusting tube and the light tube is limited by the axial screw. When the fine-tuning tube is pushed or pulled, the rapid axial displacement of the first lens or the second lens is achieved by the axial translation of the coarse-adjusting tube, and the coarse-adjusting tube is tightened by the locking handwheel to fix the axial position of the first lens or the second lens.

4. The interactive physics teaching spectrometer according to claim 1, characterized in that: A variable magnification lens is provided between the first camera device and the beam splitter prism, and the variable magnification lens is used to change the imaging magnification of the second optical path.

5. The interactive physics teaching spectrometer according to claim 4, characterized in that: The first camera device is fixed to the tube body by means of locking pins, screws and a connecting ring, the connecting ring is used to connect the first camera device to the zoom lens, the connecting ring is fixedly connected to the tube body by means of the screws, and the zoom lens is fastened to the first camera device by means of the locking pins.

6. An interactive teaching system based on a spectrometer, characterized in that: It comprises a teacher-end unit and at least one student-end unit, both of which adopt the interactive physics teaching spectrometer described in any one of claims 1 to 5, wherein the student-end unit comprises a first spectrometer and a first intelligent device, and the teacher-end unit comprises a second spectrometer and a second intelligent device, wherein the second intelligent device is connected to at least one of the first intelligent devices in a wired or wireless manner and realizes data transmission interaction between the teacher-end unit and at least one student-end unit, and the second intelligent device of the teacher-end unit sends a control instruction to the first intelligent device of the student-end unit to realize control of the first intelligent device and the first spectrometer.

7. The spectrometer-based interactive teaching system according to claim 6, characterized in that: The teacher-end unit and / or the student-end unit also includes a macro camera device assembly, and the macro observation camera assembly is arranged around the second spectrometer and / or the first spectrometer. The macro observation camera assembly is connected to the second smart device and / or the first smart device and sends the second image on the stage and the rotating stage of the second spectrometer and / or the first spectrometer captured in real time to the second smart device and / or the first smart device.

8. The spectrometer-based interactive teaching system according to claim 7, characterized in that: The macro observation camera assembly includes a base, a connecting rod, a second camera device and an observation lens, the second camera device is fixedly connected to the observation lens, the connecting rod is fixed on the base and connected to the second camera device to support and adjust the height and / or angle of the second camera device and the observation lens.

9. The spectrometer-based interactive teaching system according to claim 6, characterized in that: The first smart device and the second smart device have an alignment scale display and / or zero point calibration function.

Images