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The final personal summary is 100 words.
Summary of training mode of electrical and electronic engineering Part I:
In this week-long electronic and electrical training, I really learned a lot of knowledge and deeply understood the importance of practice. Through this electronic and electrical training, I enhanced my hands-on ability and realized the profound meaning of "applying what I have learned". I remember when I was in high school, I helped to install a switch control circuit at home. Because the hands-on ability is not strong enough, the circuit is short-circuited. Fortunately, because the circuit was originally equipped with safety wires, there was no major safety accident. And through this electronic electrician training, I have mastered the installation of fluorescent lamp circuits and learned the control methods of incandescent lamps in the two places. More importantly, I also learned the wiring and inspection methods of the circuit.
In the training project of single-tube amplifier circuit, some common electronic components are useful, so through training, I can identify related electronic components, such as resistors, potentiometers, capacitors, triodes and other common electronic components. Understand their shapes, classifications, models and specifications, uses and how to test the quality of these electronic components.
This week's electronic and electrician training also cultivated my bold, cautious and cautious work style. Because the circuit is charged, we should pay attention to the safety of electricity use, wire it into the lamp holder, and the switch is the wick, which must not be exposed. It also requires careful operation to avoid electric shock and accidental injury. In the later training, I used an electric soldering iron and learned the correct way to use the electricity money to avoid accidental injuries.
This internship is very tiring I encountered more or less difficulties in the process of installation and welding. There is a great difference between theory and practice. Many things need to be thought by yourself. Only pay, you will get. Only by thinking can you gain something, which means that your practical ability and thinking ability have been improved and enhanced. So here I want to thank the teachers who taught us, thank you for your patient teaching, and thank the school for giving me such an opportunity to practice, which made me understand many things that I can't understand in textbooks.
Overview of training mode of electrical and electronic engineering Part II:
1. Internship time
_ _ year 65438+February 15 ~ _ _ year 65438+February 17
2. Practice place
6 10 1
Third, the purpose of the internship
Through a week's electronic practice, students have a certain perceptual and rational understanding of the assembly and debugging of electronic components and electronic circuits (digital multimeter), laying a foundation for further study of electronic technology-related courses in the future. At the same time, the internship enables students to acquire practical production knowledge and assembly skills of electronic circuit boards and products, cultivate students' ability to integrate theory with practice, improve students' ability to analyze and solve problems, and enhance their ability to work independently. The most important thing is to cultivate the spirit of teamwork, discussion and progress between students and other students.
Details are as follows:
1, familiar with the use, maintenance and repair of common tools for manual welding.
2. Basically master the welding technology of manual soldering iron, and be able to independently complete the installation and welding of simple electronic products. Familiar with the production process of electronic product installation process.
3. Master and be familiar with the debugging methods and basic steps of electrical and electronic devices and products, be familiar with the technological process of making electronic circuit boards by hand, and be able to design and make electronic circuit boards according to the circuit schematic diagram and physical components.
4. Be familiar with the categories, models, specifications, performance and application scope of commonly used electronic devices, and be able to consult relevant electronic device books.
5. Be able to correctly identify and select commonly used electronic equipment, and skillfully use commonly used multimeters and power tools.
6. Understand the welding, debugging and maintenance methods of electronic products.
Fourth, the internship content
1, task lecture operation
2. Explain the welding operation methods and precautions;
1). Explain the design requirements, methods and design principles of printed electronic circuits;
2). Explain the production process of electronic circuit boards;
3) Explain the reading method of electronic circuit diagram.
4). Practice welding;
3. Distribute and inventory components. Draw the schematic diagram of the circuit:
1). Talking about the working principle and its classification;
2) Explain the category, model, application scope and methods of components and how to select components correctly.
3) Explain how to use tools to test the assembly, welding and debugging of components. The schematic diagram of the circuit is as follows:
Summary of five pairs of feelings about welding practice (1500~3000 words)
In this electronic technology practice, we successfully assembled a digital multimeter. During this period, I learned a lot of valuable experience and related electronic technology knowledge. Welding technology plays a very important role in the assembly of multimeter. For dispersed electronic components, a complete system can be formed by welding. At the same time, installation and debugging technology is an important link in the production process of electronic products, which can cultivate our hands-on ability well. Through practice, we not only learned the assembly of multimeter, but also learned the welding of electronic components and the detection and debugging of multimeter. I deeply realize that the combination of theoretical knowledge and practice is a very important link in teaching. Only in this way can I improve my practical operation ability, cultivate my spirit of independent thinking, courage to overcome difficulties and teamwork spirit. Generally speaking, I am very interested in this course. First, I have been interested in this kind of small production since I was a child. At that time, I didn't know how to weld, and I liked to take things apart, but in this way, this thing was scrapped. Now the course of electrical engineering and electronics is to learn how to put things back. Every step I take, I am as happy as a child and have a sense of accomplishment. Second, the characteristics of electrical and electronic practice are that students do it themselves, master certain operational skills, and design, make, assemble and debug themselves. It organically combines basic skills training, basic technological knowledge and innovation enlightenment to cultivate our practical ability and innovative spirit. As a college student in the information age and a highly skilled person trained by the country, it is not enough to operate the mouse only. Basic hands-on ability is the foundation and necessary condition of all work and creation.
After a week's study, I feel that I have gained something in the following aspects:
1. Have a preliminary and systematic understanding of the theory of electronic technology. We learned the welding skills of common components and circuit components, the design, production and technological process of printed circuit board diagram, the working principle of radio and the functions of components. This knowledge is not only effective in the classroom, but also of great guiding significance to the study of electronic technology courses in the future, and also has practical significance in daily life.
Second, it is a great exercise for your practical ability. Experience is the mother of wisdom. Throughout the ages, all inventions have been tested by practice. If the hands-on ability is not enough, you can talk about making achievements in future scientific research, especially experimental research. During the internship, I exercised my hands-on ability and improved my ability to solve problems. For example, when assembling and debugging the radio, several gaskets were welded together with small spacing, but the task was still completed.
During the one-week internship, one of the most challenging exercises for my hands-on ability is welding. Welding is one of the basic methods of metal processing. Its basic operation "five steps"-pre-welding preparation, weldment heating, solder melting, solder removal and soldering iron removal (also called "three steps") seems simple, but it takes a long time to master. The first solder joint can only be described as "ugly", but the welding assessment forced us to complete the assessment goal in just one day, which can be said to be a qualitative leap. So I'm patient and cautious. Take your time. In the process of constantly challenging myself, the hand holding the soldering iron stopped shaking, the hand sending the solder can basically master the dosage, and the welding technology is becoming more and more mature. When I finally finished a qualified solder joint in the shortest time, the fear of welding had already dissipated and was replaced by confidence in my own hands-on ability. In this process, I deeply feel that seemingly simple things may not be the case. In the process of welding practice, I learned a lot of things I didn't know before. For example, before the internship, I only knew that there were electric soldering irons, but I didn't know that there were many kinds of electric soldering irons, such as single use, dual use, temperature regulation, constant temperature, direct heating, induction, internal heating and external heating. Also, you can't use rosin to wipe the soldering iron before hanging tin, which will accelerate its corrosion and reduce air pollution, and so on. However, there are many things that I don't understand. 1. Why should tin be hung on the weldment to prevent oxidation? As long as I clean the surface of welded components, I don't understand; 2. After the electric soldering iron is completely heated, should it be coated with flux or tin first? I use the latter, and some people use the former. They are all welded, but I often can't weld them in the process of welding, and doesn't the latter accelerate its corrosion and reduce air pollution? I don't understand.
Welding challenges my hands-on ability, so the design of printed circuit board diagram challenges my ability to accept new knowledge quickly. It is a great challenge for me to spend an afternoon accepting and digesting what the teacher said without touching the printed circuit board before. In this process, I mainly exercised the spirit of teamwork and discussed the progress with other students. Because I am not very clear about circuit knowledge, it can be said that it is vague. But when I don't know anything, I will ask other students for advice. Even if they are busy thinking, they will stop to help me and eliminate my blind spots. When I tell them what I think, they won't accept my suggestion because I am ignorant. In the whole process of this internship, although I was only a supporting role, I deeply felt the sincerity of friendship between my classmates. During my internship, I was familiar with the process flow, design steps and methods of printed circuit boards. However, it's a pity that I can't design the printed circuit board diagram independently. This internship makes me believe that my knowledge is not perfect and my ability of hands-on design needs to be improved.
A summary of the training mode of electrical and electronic engineering Part III;
The one-week electronic and electrician internship has ended, and I personally think this internship is very meaningful. I not only learned a lot from it, but also improved my practical ability. I believe this internship will definitely lay a solid foundation for my future study and work.
The combination of theory and practice in this internship aroused my strong interest in learning. On the first day of practice, the teacher first introduced us some basic knowledge, and then let us practice creative modeling, which not only allowed us to practice our skills, but also cultivated our innovative ability. We were very excited when we picked up the soldering iron, because it was the first time after all. Although the teacher talked about the essentials of action, many people were afraid to do it for the first time, but with our mutual encouragement, we all boldly started to do it. The first few solder joints are not good, because we are not sure about the amount of solder and welding time. Hard work pays off, and through our continuous exploration in practice, we finally reach the welding standard. In the meantime, the teacher also introduced us some SMT knowledge, which not only increased our knowledge, but also aroused our interest.
Later, we practiced soldering circuit boards. Because it is an exercise, we use waste circuit boards, and practice with points that have not been soldered on them, and the materials used need to be reused. For example, all covered electrode we use must be less than 1 cm. The reason for doing this is to cultivate our awareness of saving. This internship made me realize that in today's tight resources, we should save from the little things around us.
The most important thing in this practice is the assembly, welding and debugging of the radio. In this project, we learned the identification and detection of electronic components, and learned to read the instructions and check the circuit diagram by ourselves. In the process of identification and detection of electronic components, devices with different specifications must be carefully separated and labeled to avoid confusion. Pay attention to the welding sequence: first small, then large, first low, then high, first heat-resistant and then heat-resistant. After our intense assembly, welding and debugging, our radio was finally assembled. Listening to the sound of my own radio, my heart is extremely happy, and my efforts have not been in vain.
Through this training, I learned a lot of knowledge, experience and lessons. No matter what you do, you should be interested in it first, devote yourself wholeheartedly and be careful. Of course, we will inevitably encounter many problems in the process of training. When encountering problems, we must think independently, carefully analyze and be brave in overcoming difficulties. There's a lot to say. In short, thank the school for giving us this opportunity to exercise.
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