CN111882961A - Optical bench experimental instrument and optical bench experimental instrument teaching data acquisition system - Google Patents
Optical bench experimental instrument and optical bench experimental instrument teaching data acquisition system Download PDFInfo
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- CN111882961A CN111882961A CN202010941903.5A CN202010941903A CN111882961A CN 111882961 A CN111882961 A CN 111882961A CN 202010941903 A CN202010941903 A CN 202010941903A CN 111882961 A CN111882961 A CN 111882961A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 238000003384 imaging method Methods 0.000 claims abstract description 38
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- 230000008054 signal transmission Effects 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000002474 experimental method Methods 0.000 claims description 16
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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Abstract
The invention discloses an optical bench experimental instrument which comprises a guide rail, wherein a plurality of elements are arranged on the guide rail, each element comprises a light source, a convex lens and an imaging screen, and the light source, the convex lens and the imaging screen are respectively connected with the guide rail in a sliding manner through a sliding seat arranged at the bottom of the light source, the convex lens and the imaging screen; further comprising: the acquisition part is provided with an angle acquisition unit and a distance measurement unit; a signal transmission section; the angle acquisition unit is used for acquiring angle information of a plurality of elements, the ranging unit is used for acquiring distance information among the light source, the convex lens and the imaging screen, and the signal transmission part is used for receiving data information of the acquisition part and sending the data information to the upper computer. The invention has the advantages that the acquisition part can acquire data of each operation action of the student in the process of operating the optical bench, and the upper computer can calculate and analyze the acquired data through a standardized algorithm to judge whether the action of the operation action of the student in the experimental process is standard or not, and whether the student can really master and understand subject knowledge and carry out practical application or not.
Description
Technical Field
The invention discloses a teaching instrument, particularly relates to an optical bench experimental instrument, and further relates to a teaching data acquisition system of the optical bench experimental instrument.
Background
Physics, chemistry and biology are courses based on experiments, and experimental teaching has important significance for the understanding ability, theoretical mastering ability and experimental ability cultivation of students. The teaching targets of physics, chemistry and biology comprise two fields of cognition and operation, more teaching problems are researched in the cognitive field, and less research is conducted in the experimental operation skill field. The objective of experiment teaching examination is to examine the operation skills and teaching results, find problems, continuously improve the problems and achieve the purpose of further improving the teaching quality.
The optical bench experimental instrument is an experimental instrument commonly used in physics, chemistry and primary school scientific experiments in middle schools, and when the traditional teaching experimental instrument is adopted for experimental teaching, because students are more and teachers are fewer, teachers can only judge the mastering conditions of experimental operation actions and processes of the students by observing the operation processes and results of individual students, the whole experimental operation process of a single student cannot be completely observed, guided and judged, and the learning conditions of all students cannot be accurately judged. Whether students can master operation skills, understand subject knowledge and carry out practical application or not is judged accurately only by judging whether the steps of the whole experiment operation process are scientific or not and whether the actions are standardized or not and combining correct experiment results.
Disclosure of Invention
The invention aims to provide an optical bench experimental instrument and further provides a teaching data acquisition system of the optical bench experimental instrument.
In order to achieve the purpose, the invention can adopt the following technical scheme:
the optical bench experimental instrument comprises a guide rail, wherein a plurality of elements are arranged on the guide rail, each element comprises a light source, a convex lens and an imaging screen, and the light source, the convex lens and the imaging screen are respectively connected with the guide rail in a sliding manner through a sliding seat arranged at the bottom of the light source, the convex lens and the imaging screen; further comprising:
the device comprises an acquisition part, a control part and a control part, wherein the acquisition part is provided with an angle acquisition unit and a distance measurement unit;
a signal transmission section;
the angle acquisition unit is used for acquiring angle information of the light source, the convex lens and the imaging screen, the distance measurement unit is used for acquiring distance information among the light source, the convex lens and the imaging screen, and the signal transmission part is used for receiving data information of the acquisition part and sending the data information to the upper computer.
Specifically, the angle acquisition unit includes:
the first angle sensor is arranged on the sliding seat of the light source and used for measuring angle data information of the light source;
the second angle sensor is arranged on the sliding seat of the convex lens and used for measuring angle data information of the convex lens;
and the third angle sensor is arranged on the sliding seat of the imaging screen and used for measuring angle data information of the imaging screen.
Specifically, the ranging unit includes:
the first distance measuring sensor is arranged on the light source or the sliding seat of the convex lens and used for measuring distance data information between the light source and the convex lens;
and the second ranging sensor is arranged on the imaging screen or the sliding seat of the convex lens and is used for measuring the distance data information between the imaging screen and the convex lens.
Specifically, the signal transmission part is provided with a plurality of transmission units, the transmission units are respectively arranged in the sliding seats at the bottoms of the light source, the convex lens and the imaging screen and respectively comprise a single chip microcomputer, and an analog signal input interface of the single chip microcomputer is used for receiving data signals of the sensors on the corresponding elements through an analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module and used for transmitting the data signal to an upper computer.
Specifically, the transmission unit further comprises a timing module, the timing module is used for sensing that the time length of the numerical value of each sensor is not changed any more and is consistent with the set time length, and the single chip microcomputer controls the wireless transmitting module to send the data information to the upper computer.
Specifically, the first distance measuring sensor and the second distance measuring sensor are laser distance measuring modules or infrared distance measuring modules.
An optical bench experimental instrument teaching data acquisition system, comprising:
the data analysis unit comprises an upper computer, a wireless receiving module and a storage module;
a data acquisition unit comprising a plurality of the optical bench testers;
the data information of a plurality of optical bench experimental instruments is respectively transmitted to the wireless receiving module in a wireless mode, the wireless receiving module sends the data information to the upper computer, and the upper computer analyzes and processes the data information and then sends the data information to the storage module for storage.
The experimental data storage device comprises an upper computer, a display screen and a storage module, wherein the upper computer stores experimental data, and the display screen is used for calling and displaying the experimental data stored by the upper computer.
The invention has the advantages that the acquisition part can acquire data of each operation action of the student in the process of operating the optical bench, and the upper computer can calculate and analyze the acquired data through a standardized algorithm to judge whether the actions of the operation actions of the student in the experimental process are standard and whether the sequence is correct, and whether the student can really master and understand subject knowledge and carry out practical application. The evaluation conclusion can be fed back to the teacher and the students in real time, so that the students can correct errors in time or can make targeted supplementary learning under the guidance of the teacher. The problem that a plurality of students reflected in the daily experiment operation process can carry out big data analysis through this system, judge student of class, school and even whole area according to the analysis result and grasp the evaluation of condition and teaching result to the chemical experiment operating skill, find general problem and weak link to improve and promote the teaching method, further improve teaching quality.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic block diagram of a circuit of embodiment 1 of the present invention.
Fig. 3 is a schematic block diagram of a circuit of embodiment 2 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly. In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1:
as shown in fig. 1 and 2, the optical bench experimental apparatus according to the present invention includes a guide rail 10, a plurality of elements are disposed on the guide rail 10, the elements include a light source 20, a convex lens 30 and an imaging screen 40, and the light source 20, the convex lens 30 and the imaging screen 40 are slidably connected to the guide rail 10 through sliders (50 a, 50b, 50 c) disposed at the bottom of the sliders respectively; further comprising:
an acquisition part 60, the acquisition part 60 having an angle acquisition unit 610 and a distance measurement unit 620;
a signal transmission section 70;
the angle acquisition unit 610 is used for acquiring angle information of the light source 20, the convex lens 30 and the imaging screen 40, the distance measurement unit 620 is used for acquiring distance information among the light source 20, the convex lens 30 and the imaging screen 40, and the signal transmission part 70 is used for receiving data information of the acquisition part 60 and sending the data information to an upper computer;
specifically, the angle acquisition unit 610 includes:
a first angle sensor 611, the first angle sensor 611 being disposed on the slider 50a of the light source 20 for measuring angle data information of the light source 20;
a second angle sensor 612, the second angle sensor 612 being disposed on the slider 50b of the convex lens 30 for measuring angle data information of the convex lens 30;
a third angle sensor 613, the third angle sensor 613 being disposed on the slide carriage 50c of the imaging screen 40 for measuring angle data information of the imaging screen 40;
the ranging unit 620 includes:
a first distance measuring sensor 621, wherein the first distance measuring sensor 621 is disposed on the slide carriage 50a of the light source 20 (or on the convex lens 30, just as it is aligned with the light source 20) and is used for measuring the distance data information between the light source 20 and the convex lens 30;
a second distance measuring sensor 622, wherein the second distance measuring sensor 622 is arranged on the slide carriage 50c of the imaging screen 40 (or on the convex lens 30, and is aligned with the imaging screen 40) and is used for measuring the distance data information between the imaging screen 40 and the convex lens 30;
the signal transmission part 70 is composed of three transmission units (70 a, 70b, 70 c) which respectively comprise a singlechip, and an analog signal input interface of the singlechip is used for receiving data signals of the sensors on the corresponding elements through an analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module for transmitting data signals to an upper computer, and transmission units (70 a, 70b and 70 c) are respectively encapsulated by plastic shells and then are arranged in sliding seats (50 a, 50b and 50 c) at the bottoms of the light source 20, the convex lens 30 and the imaging screen 40 in a threaded manner;
specifically, the transmission unit 70a is disposed in the sliding seat 50a of the light source 20, the analog signal amplification processing unit of the single chip receives the angle and distance data signals output by the first angle sensor 611 and the first distance measuring sensor 621, and the data communication interface of the single chip is connected to a wireless transmission module for transmitting the angle and distance data signals to the upper computer;
the transmission unit 70b is arranged in the sliding seat 50b of the lens 30, the analog signal amplification processing unit of the single chip microcomputer receives the angle data signal output by the second angle sensor 612, and the data communication interface of the single chip microcomputer is connected with a wireless transmitting module and used for transmitting the angle data signal to an upper computer;
the transmission unit 70c is arranged in the sliding seat 50c of the imaging screen 40, the analog signal amplification processing unit of the single chip microcomputer receives angle and distance data signals output by the third angle sensor 613 and the second ranging sensor 622, and the data communication interface of the single chip microcomputer is connected with a wireless transmitting module and used for transmitting the angle and distance data signals to an upper computer;
the first distance measuring sensor 621 and the second distance measuring sensor 622 are laser distance measuring modules (or infrared distance measuring modules), the first distance measuring sensor 621 is used for collecting distance data information between the light source 20 and the convex lens 30, and the second distance measuring sensor 622 is used for collecting distance data information between the imaging screen 40 and the convex lens 30.
The working principle is as follows: an angle sensor is arranged at the bottom of each element of the optical bench experimental instrument to measure the angle information of each element, whether the installation of each element is basically vertical to the guide rail 10 or not is judged, and whether the student grasps the leveling operation of the optical bench or not is judged; the distance measuring sensor is arranged at the bottom of an element of the optical bench experimental instrument to measure numerical values of object distance and image distance, the relative distance between the object distance and the image distance in the imaging experiment of the convex lens is read, and whether students master the imaging rule of the convex lens of the optical bench or not is judged.
Example 2: the invention relates to an optical bench experimental instrument teaching data acquisition system, which comprises:
the data analysis unit 1 comprises an upper computer, a wireless receiving module and a storage module;
the data acquisition unit 2, the data acquisition unit 2 includes a plurality of optical bench experimental apparatus;
a display screen;
the data information of the optical bench experimental instruments is respectively transmitted to the wireless receiving module in a wireless mode, the wireless receiving module sends the data information to the upper computer, and the upper computer analyzes and processes the data information and then sends the data information to the storage module for storage; the display screen is used for calling and displaying experimental data stored by the upper computer.
After the upper computer receives data information of the plurality of optical bench experiment instruments, the upper computer carries out calculation and analysis on the collected data through professional data analysis software designed by the data analysis software according to experiment requirements through a standardized algorithm, and judges whether the actions of the operation actions of the students in the experiment process are standard and whether the sequence is correct, and whether disciplinary knowledge can be really mastered and understood and practical application is carried out. The evaluation conclusion can be fed back to the teacher and the students in real time through the display screen, so that the students can correct errors in time, or the students can make targeted supplementary learning under the guidance of the teacher. The problem that a plurality of students reflected in the daily experiment operation process can carry out big data analysis through this system, judge student of class, school and even whole area according to the analysis result and grasp the evaluation of condition and teaching result to the chemical experiment operating skill, find general problem and weak link to improve and promote the teaching method, further improve teaching quality.
Claims (8)
1. An optical bench experimental instrument comprises a guide rail, wherein a plurality of elements are arranged on the guide rail, each element comprises a light source, a convex lens and an imaging screen, and the light source, the convex lens and the imaging screen are respectively connected with the guide rail in a sliding manner through a sliding seat arranged at the bottom of the light source, the convex lens and the imaging screen; it is characterized by also comprising:
the device comprises an acquisition part, a control part and a control part, wherein the acquisition part is provided with an angle acquisition unit and a distance measurement unit;
a signal transmission section;
the angle acquisition unit is used for acquiring angle information of the light source, the convex lens and the imaging screen, the distance measurement unit is used for acquiring distance information among the light source, the convex lens and the imaging screen, and the signal transmission part is used for receiving data information of the acquisition part and sending the data information to the upper computer.
2. The optical bench experiment instrument of claim 1, wherein the angle acquisition unit comprises:
the first angle sensor is arranged on the sliding seat of the light source and used for measuring angle data information of the light source;
the second angle sensor is arranged on the sliding seat of the convex lens and used for measuring angle data information of the convex lens;
and the third angle sensor is arranged on the sliding seat of the imaging screen and used for measuring angle data information of the imaging screen.
3. The optical bench experiment instrument of claim 2, wherein the ranging unit comprises:
the first distance measuring sensor is arranged on the light source or the sliding seat of the convex lens and used for measuring distance data information between the light source and the convex lens;
and the second ranging sensor is arranged on the imaging screen or the sliding seat of the convex lens and is used for measuring the distance data information between the imaging screen and the convex lens.
4. The optical bench experimental instrument of claim 3, wherein the signal transmission part is a plurality of transmission units, the transmission units are respectively arranged in the sliding seats at the bottom of the light source, the convex lens and the imaging screen, and each transmission unit comprises a single chip microcomputer, and the analog signal input interface of the single chip microcomputer is used for receiving the data signal of the sensor on the corresponding element through the analog signal amplification processing unit; the data communication interface of the singlechip is connected with a wireless transmitting module and used for transmitting the data signal to an upper computer.
5. The optical bench experimental instrument of claim 4, wherein the transmission unit further comprises a timing module, the timing module is used for sensing that the time length when the numerical value of each sensor does not change any more is consistent with the set time length, and the single chip microcomputer controls the wireless transmitting module to transmit the data information to the upper computer.
6. The optical bench experimental instrument of claim 5, wherein the first and second ranging sensors are laser ranging modules or infrared ranging modules.
7. The utility model provides an optical bench experiment appearance teaching data acquisition system, characterized by includes:
the data analysis unit comprises an upper computer, a wireless receiving module and a storage module;
a data acquisition unit comprising a plurality of the optical bench testers;
the data information of a plurality of optical bench experimental instruments is respectively transmitted to the wireless receiving module in a wireless mode, the wireless receiving module sends the data information to the upper computer, and the upper computer analyzes and processes the data information and then sends the data information to the storage module for storage.
8. The optical bench experimental instrument teaching data acquisition system of claim 7, wherein: the experimental data storage device further comprises a display screen, and the display screen is used for calling and displaying the experimental data stored by the upper computer.
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| CN202010941903.5A CN111882961A (en) | 2020-09-09 | 2020-09-09 | Optical bench experimental instrument and optical bench experimental instrument teaching data acquisition system |
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| CN202010941903.5A CN111882961A (en) | 2020-09-09 | 2020-09-09 | Optical bench experimental instrument and optical bench experimental instrument teaching data acquisition system |
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| CN213123486U (en) * | 2020-09-09 | 2021-05-04 | 河南四季竹信息科技有限公司 | Optical bench experimental instrument |
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2020
- 2020-09-09 CN CN202010941903.5A patent/CN111882961A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204808723U (en) * | 2015-07-26 | 2015-11-25 | 莆田市荔城区聚慧科技咨询有限公司 | Convex lens imaging experiment presentation device |
| CN206849357U (en) * | 2016-11-03 | 2018-01-05 | 吴顺伟 | Digitize convex lens experimental provision |
| CN207019869U (en) * | 2017-03-08 | 2018-02-16 | 史浩洋 | A kind of laboratory apparatus for measuring thin convex lens focal length |
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| CN213123486U (en) * | 2020-09-09 | 2021-05-04 | 河南四季竹信息科技有限公司 | Optical bench experimental instrument |
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