During the 40-day electrician practice, I learned a lot from sensibility, which made me realize the importance of practice more deeply. Only theoretical knowledge is not enough, but also practical ability. Through practice, we have a better understanding of the profound truth contained in the sentence "apply what you have learned".

The purpose of this internship is to let us have a certain perceptual and rational understanding of electrical tools, electrical components and line installation; Understand some circuit principles and methods of installation, debugging and maintenance through circuit diagram; Have a preliminary understanding of electrical technology professional knowledge; Cultivate and exercise our practical ability, make our theoretical knowledge and practice fully combined, and achieve high-quality talents who have both professional knowledge and strong practical operation ability, and can analyze and solve problems. In the past, we all learned some theoretical knowledge and paid more attention to theory than to practice. But this time, there are many things we need to think about and do. Many things seem simple, but if you don't do them yourself, you won't understand that there is a big difference between theory and practice. Many simple things have many points to pay attention to in actual operation, which are different from what we imagined. This practice requires us to cross this road. No matter how good the theory is, if it is not put into practice, then everything is empty talk. Only in application and practice can we realize the great difference between the two. At first, the teacher introduced the circuit. I thought the electrician's practice was very simple, and I found it by doing it myself. It's easier to see than to do, and people can't despise anything. Even every wire is responsible for machines, jobs and people. This also cultivates our sense of responsibility. This internship is very tiring We all encountered many difficulties in the installation process. There is a great difference between theory and practice. Many things need us to think for ourselves. Only when you give will you get it. If you think, you will gain, that is to say, if you improve, you will enhance your practical ability and thinking ability.

Through this week's electrical engineering practice, I have gained a lot, which I can't learn in classroom theory study at ordinary times. My main gains are as follows:

1. Mastered the use of several basic electrical tools, the connection method between wires and the connection method between wires and terminals, and learned the basic knowledge of using megohmmeters;

2. Understand the installation method of simple electrical crossbar and master the switching method of universal switch;

This internship has strengthened our team spirit and cultivated our practical ability and serious and rigorous style.

Through practice, I have deepened my knowledge in some textbooks and gained a lot of practical experience. In addition, I also realized the lack and simplicity of some of my knowledge, and encouraged myself to study better and grasp the direction in the future. In the information age, it is not enough to operate the mouse. Basic hands-on ability is the foundation and necessary condition of all work and creation. Moreover, the severe employment situation now makes me realize that only by constantly increasing my ability and having very rich knowledge can I not be eliminated in the future competition. In a word, this internship has exercised myself and added a lot of fresh vitality to my life! I will go all out to work as always. Our work needs positive work enthusiasm and down-to-earth work style. I will take this training as an opportunity to find the benchmark of my own progress, develop into intelligence in my work, and work hard in the direction of scientific research in my business.

Experience of electrician practice;

Electrician practice is a course to teach basic skills of electronic circuit design and production. The teacher's earnest teaching, students' harmonious cooperation, and the strong practicality and interest of the course itself attracted me deeply at once. The first smooth and beautiful solder joint, the first self-designed PCB layout, and the first charger that can be used daily, I am very curious, very excited and have a strong sense of accomplishment. I really don't know how to describe it. Although a day's electrician practice is hard to avoid, it is said to be fun. Every internship is as challenging as playing games, and it's worth it.

How excited I was when my right hand waved the soldering iron for the first time! Although it took a lot of effort to find that feeling; Although there are often some virtual solder joints or wrong solder joints, although I feel a little disgusted with my first masterpiece, I am still sincerely grateful. If you didn't practice that day, where can you be proud of the birth of the charger?

Speaking of that charger, I'm really excited! ! ! I remember when I was a child, I was a separatist, and nothing in my family could escape my magic. Unfortunately, they could only be separated but not reunited. Through internship, I found myself beginning to explore a little way. For the first time, I clearly understand the whole process of an electrical appliance assembly and have a new understanding of the whole charger. It turns out that human sweat is everywhere!

After several weeks of electrician practice, what I can't forget is the manual design of printed boards. If I don't have a little patience, it's really tricky. It's just a simple diagram of 1: 1, and its size is less than 200 square centimeters. Not only the position of components should be considered, but also the design of wires should be calculated. No parallelism, no acute angle, no right angle, no flying around. The whole picture should be concise and clear, alas ~ ~ ~ I drew more than four. "Impulse is the devil!" Try to draw this picture and you will know that it is true! ! !

Generally speaking, I am very interested in this course. First, I really feel that I can do something through practice and have a sense of accomplishment; Second, through electrician practice, we have strengthened our practical ability and design innovation spirit. As college students in the information age, basic practical ability is the basis and necessary condition for all work and creation. Third, in the electrician practice these days, everyone's team spirit has been greatly strengthened. We are no longer a single body, but a whole. Everyone deeply felt that "unity is strength" sung in military training is no longer an empty talk, we are entities, and we have completed the task through unity and cooperation!

Because of the electrician practice, we learned knowledge;

Because of the electrician internship, we started to do things;

Because of the electrician practice, we have grown up and matured. ...

Electrical internship experience Fan Wensan:

Through a Saturday's electrician practice, I got a lot of gains that I can't learn in classroom theory study. My main gains are as follows:

First, I have mastered the usage of electric soldering iron and the welding methods of components, such as two welding methods of resistance.

The second is to learn the skills of pulling out the conductor insulation layer, as well as the matters needing attention and the direct connection method of a single copper conductor:

The connection method of small cross-section single-strand copper conductor is shown in the figure. First, cross the ends of the core wires of the two wires into an X shape, then wrap them around each other for 2-3 turns, and then straighten them. Then each thread end is tightly wound around another core wire for 5-6 turns, and then the redundant thread ends are cut off.

Branch connection of a single copper conductor. As shown in the figure, the end of the branch core wire is tightly wound around the main core wire for 5-8 turns, and then the redundant end is cut off to realize the T-shaped branch connection of a single copper conductor. For the core wire with smaller cross section, the end of the branch core wire can be tied with a winding knot on the main core wire first, and then tightly wound for 5 ~ 8 times, and then the redundant end can be cut off.

Thirdly, I know some principles of automatic control, such as semi-automatic control device and full-automatic control device. Finally, we connected a semi-automatic control device ourselves. In the course of these lectures, I learned a lot about components.

Fourthly, under the guidance of the teacher, we also contacted the 220v commercial power and 500v power generated by the hand-cranked generator.

Generally speaking, this electrician practice has given us knowledge that we can't get in touch with in theoretical classes, which is of great help to our future study and life, Freescale and future electronic competitions. More importantly, what I learned in this electrician internship is a serious and scientific attitude, which will lay an attitude for me to study this major in the future.

Experience of electrician practice;

Welding experience

The first training of internship is welding. Welding is one of the basic methods of metal processing. Its basic operation "five-step method" is welding preparation, weldment heating, solder melting, solder removal and soldering iron removal, which seems easy, but it takes a long time to master. In the process of constantly challenging yourself, 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. Because freshmen and sophomores learned some theoretical knowledge, they didn't realize what the actual operation process of welding things was like. In this process, I deeply feel that seemingly simple things may not be the case. I didn't think much about this internship, I have to do more. I can understand the circuit diagram, but I can't understand the difference between theory and practice without doing it myself. It's simple to look at a thing, but there are many things to pay attention to in actual operation, and some things are different from what you think. My internship is to cross the gap between reality and theory. The characteristics of electrical and electronic practice are that students do it themselves, master certain operating skills and make, assemble and debug. It organically combines basic skills training, basic process knowledge and innovation enlightenment to cultivate my 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.

Experience of making surface mount radio

After electrical and electronic practice, I learned the basic welding technology, detection and debugging of surface mount radios, assembly technology of electronic products, identification and quality inspection of electronic components.

Surface mount welding:

When welding surface mount radios, it should be my gain to learn surface mount welding. The following briefly introduces the experience of surface mount welding. The most important thing in surface mount welding is welding temperature and time. When welding, the temperature of electric soldering iron should be higher than that of solder, but not too high. It is good that the rosin of soldering iron joint just smokes, and the welding time should not be too short, because the temperature of solder joint is too low, the solder joint is not completely melted, and the rough solder joint is easy to cause virtual welding, while the welding time is long and the solder is easy.

Debugging and testing:

Debugging is a very difficult and patient task, but its purpose and significance are very significant. I want to know the production and debugging process of general electronic products through the detection and debugging of patch radios, learn the methods of debugging electronic products initially, and cultivate the detection ability and meticulous scientific style. First of all, I want to check whether the circuit board is damaged at the welding place, whether each circuit element is the same as the drawing, whether each diode and triode are welded in the wrong polarity and position, whether the circuit of the circuit board is broken or short-circuited, whether there is a short circuit caused by welding during welding, and whether the positive and negative poles of the power lead-out wires are correct. All these have cultivated my practical ability and rigorous work style, and laid a good foundation for my future work.

My own harvest during my internship.

First, in terms of electronic and electrical knowledge

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.

3. Familiar with the production process of electronic product installation process.

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 ordinary multimeter. Understand the welding, debugging and maintenance methods of electronic products.

In electrical engineering, I have mastered common electrical tools, such as wire cutters, needle-nosed pliers, screwdrivers, multimeters, electric soldering irons, etc. In electronics, I am familiar with the types of common electronic devices, such as the models, specifications, performance, application scope and basic test methods of capacitors, resistors and diodes. In terms of theoretical knowledge, I have systematically studied: ① component welding technology; ② Basic knowledge of components and testing; ③ Use of multimeter.

2. Some thoughts in the process of internship

During my internship, I not only learned the above knowledge of electronics and electrician, but also got some thoughts and gains from the following aspects.

Internship 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. This surface mount circuit is soldered. Cultivating and training my practical ability will make me a high-quality talent who fully combines theoretical knowledge with practice. At the same time, I also have strong practical ability to analyze and solve problems, so as to prepare for a smooth employment in the future. Practice, let me more deeply understand the importance of practice, through practice, I have a deeper understanding of the truth of this sentence, and finally realized the meaning of this sentence, "arrogance before practice, confusion in practice, thinking after practice", thinking will be rewarded and improved.

In short, the internship has enabled me to gain practical production knowledge and assembly skills of SMD radios, cultivate my ability to integrate theory with practice, improve my ability to analyze and solve problems, and enhance my ability to work independently. What touched me most was the importance of practicing contact theory. When you encounter practical problems, you can completely solve the common problems as long as you think carefully, apply what you have learned and explore step by step. During the internship, you should always keep a clear head. If there are mistakes, you must carefully and calmly check and analyze them! Finally, I heard the voice of the dispatched person playing successfully on the surface sticker radio I made. I am really happy, and finally feel that my efforts have not been in vain!

Thank you very much for Wang Liping's careful guidance. I learned a lot from her that I can't learn from books, taught me how to better link theory with practical operation, and taught me a lot about being a man. These things will be of great help to my future work and life. The short internship ended, but it pointed out a bright road for me in the future, that is, the ability to integrate theory with practice. Improve your ability to analyze and solve problems, and always keep a clear head. If there are mistakes, you must seriously and calmly check and analyze, think and do things, and have a correct attitude, which will definitely get twice the result with half the effort.