The ups and downs of life in the Siheyuan

The core technology has been solved, and the next step is assembly.

Li Yuan personally led the team and started the assembly and debugging of the dynamic balancing instrument.

A month later, a platform with two triangular support columns with adjustable spacing appeared in the laboratory.

The platform occupies only one square meter.

In order to expand applications, a list has been made in the drawings, and various types of platforms can be customized according to needs.

Next to the platform is the signal processing module, and the external display is two mechanical indicators.

The center point of the watch hand is zero and can swing on both sides.

1 indicates the degree of imbalance, and 1 indicates the approximate location of the imbalance.

The balance can be adjusted by filing, supplementing and other means.

For example, the mover of an electric motor is recommended to be filed in the instruction manual.

Today is September 1961, 9, another expert appraisal meeting.

In addition to the representatives from all parties last time, this time there were representatives from the Commission of Science, Technology and Industry for National Defense and Senior Colonel Tong Zhiyuan.

Director Li has long memorized various indicators and is explaining them above.

During the defense, Li Yuan answered while practicing, and his cooperation was flawless.

The morning ended quickly.

The representatives attending the meeting gave great recognition to the dynamic balancing instrument.

"This invention has many uses. As long as it is a rotating object, there is a need for dynamic balance. It can be said to have far-reaching influence and is a landmark invention.

I think I can definitely be selected for the first prize of this year’s Science and Technology Progress Award.”

The leader of the First Machinery Department was the first to give a reply after the school leader made a speech.

Such straightforward words about the first prize show how much he values ​​the dynamic balancer.

Then each party spoke one after another, all of which were words of praise.

Not to mention the school leaders, Director Li's face is almost convulsing with laughter.

There were reporters from national newspapers covering and taking pictures throughout the process.

After lunch, the leaders of the Commission of Science, Technology and Industry for National Defense and Colonel Tong Zhiyuan found Li Yuan.

"Comrade Li Yuan, I need your help in debugging this prototype.

The five functional prototypes you helped debug last time were praised by your superiors.

This time it was a big guy, and it was too late to wait for a suitable dynamic balancer to be made.

Therefore, I have to invite you to help debug."

With the last cooperation, Li Yuan had no need to refuse.

There are only advantages and no disadvantages in establishing a good relationship with the military.

The next day, Huaqing University once again shocked the Chinese people.

Within one year, two major inventions made the Chinese people realize the power of key universities.

As the news spread across the country, comments and praises came from all over the country.

And held various celebration activities.

Other departments are also greatly stimulated, and there are many situations where they have to live and eat in laboratories.

After communicating with the department chair, Li Yuan released control of the dynamic balance laboratory and led two students to study the preparation optimization and application direction of piezoelectric ceramics.

At this time, Li Yuan became a veritable teacher. He only guided from the side and rarely intervened.

Xiao Jian is mainly responsible for the preparation and process optimization of piezoelectric ceramics.

Wang Jingxiang is mainly responsible for the application of piezoelectric ceramics.

In addition to providing vibration sensors for dynamic balancing instruments, research on other projects begins at other times.

The current main focus is on various types of sensors, such as various types of pressure sensors, thermal sensors, underwater sound capture sensors, etc.

After Li Yuan gave the direction of their research, he began to study various circuit knowledge every day.

If you don't understand something, ask Professor Xu. Professor Xu can't wait to input all the knowledge into Li Yuan's mind every time.

If he could find a student who was eager to learn, smart, and had a wide range of interests, Professor Xu already regarded Li Yuan as his successor.

On this day, Li Yuan came to Professor Xu’s home with a 5-pound silver carp.

Professor Xu lives in the family building of the school, a 4-story red brick building with one living room, one bathroom and two rooms, more than 80 square meters.

One room is the couple's bedroom, and the other is their study room.

Professor Xu is 58 years old, and his wife, Teacher Erxia, is also a teacher at Huaqing University.

I have two sons, both working in other places.

"Xiao Li, come on, why are you bringing something else?" Teacher Xia took the fish with a smile.

"I'm lucky today. I caught a big fish. I can't eat it alone, so I can only ask you two for help."

"Xiao Li is here, come and sit down." Professor Xu was not polite to Li Yuan.

"okay".

Teacher Xia brought a cup of tea and walked into the kitchen with a smile.

"How are you doing? What have you been busy with lately?"

"I'm studying analog circuits, and I'm studying operational amplifiers. I think it's quite interesting."

"Oh, tell me."

“Now, whether it is an electron tube or a semiconductor triode, the amplification of the device is too discrete.

It is not easy to control and can easily lead to overflow.

I recently looked through journals and found that the West is studying something called an operational amplifier.

I am very interested in this and am thinking about his principles."

"You have a big heart and a broad vision.

Since the first operational amplifier appeared in the world in 1941, they have begun to study transistor operational amplifiers.

There is no doubt about its power. We have also done research in this area, but it is only limited to theory.

It can be said that there are very few results so far.

The main focus of the laboratory is still on the research of transistors, and there is another laboratory studying the preparation of wafers."

Professor Xu then discussed the principles of operational amplifiers with Li Yuan.

Li Yuan benefited a lot from the half-hour discussion.

"Xiao Li, old man, it's time to eat," Teacher Xu reminded the two of them as they prepared the meal.

At the dinner table, Professor Xu still had more to say.

“I didn’t expect you to have such a deep understanding, and many of your views are refreshing to me.

I suggest you transfer to the Department of Radio Engineering, they are studying semiconductors."

"I have promised Director Li that I will not change departments before graduation, but I can audit."

"That's okay. After you graduate, you can take my postgraduate examination." The old man said with appreciation in his eyes.

"It's such an honor." Li Yuan said unhappily.

He knew that after the wind started, all the universities would be suspended, and every day would be full of various kinds of labor.

It seems that the classes of 66/67/68 all delayed their graduation by a few years.

If you stay in college after the wind blows, you will be wasting your life.

When he returned home, Li Yuan was in a very good mood. He took out another plate of peanuts and half a bottle of Fenjiu.

He threw a small fish to Xiaohua and started drinking by himself.

After a few drinks, I remembered Qin Huairu who I met at the gate of the hospital when I returned home.

With just a quick glance, Li Yuan could see that her belly was beginning to swell again.

She must be pregnant with the third child again.

Li Yuan couldn't help but admire him for being such a good mother. If this continues, he still won't be able to create a football team.

Thinking of this, he laughed.

Suddenly, I remembered something again, and I felt a little depressed. I drained the glass of wine in one gulp.

The bottle bottomed out after half a bottle, and I wanted to take out another bottle.

Thinking of going to the factory designated by Representative Tong tomorrow to help correct a big guy, I had to give up.

Not long after he lay down, he was woken up by a knock on the door.

"Who is it?"

"You, third uncle, there is someone looking for you outside the door. They came in a car."