Chapter 157

"If the three of us, together with Zhou Meng and Liu Chi, win or lose is 50-50."

"..." Liu Bing did not speak, waiting for Li Haiqing to write later.

"Do you know what Liu Chi taught Zhou Meng? SIS algorithm, force field levitation, IPE node systematics, Mauss ring fission, these are the most cutting-edge fields of computer and artificial intelligence. Liu Chi can teach everything he can. "

"It can be said that I have taught all the skills of the bottom box."

"So good? Isn't that more powerful than Liu Chi? " Liu Bing glanced at Li Haiqing suspiciously.

"It's so powerful. I've never won compared with her." Li Haiqing said with a wry smile, "Liu Chi, a monster, can he not be powerful? Her power is in the computer one-sided, and Liu Chi is in the whole field. "

"True or false, so fierce?" Liu Bing was also majoring in computers. She is still very clear about Li Haiqing's positioning. Now she is a little surprised to hear Li Haiqing say she has never won.

"..." Li Haiqing nodded.

"Well, your circles are all Xueba." Liu Bing said curiously, "then why does she suddenly want to return home?"

"I have no problem with this. I guess I'll come back and play."

"Then she should call Liu Chi. Why did she call you?"

"How do I know? This girl has been a ghost since she was a child. The three of us often give her a hole. In addition, we can't let her." Li Haiqing was helpless.

“......”

Jiang Yu got the materials back in three days. Liu Chi plunged into the laboratory with a lot of materials.

Test material, etching array.

Just when Liu Chi was concentrating on his experiment;

"Bell, bell, bell..."

"..." after the mobile phone rang more than ten times, Liu Chi picked up the mobile phone, looked at the incoming call, was stunned, and then answered the answer button: "Hello!?"

"Guess who I am?" A smiling and fragile voice came into Liu Chi's ears.

"Kitten?" As soon as Liu Chi sat down in the chair, he leaned back, put on a comfortable posture, turned his mouth and cooperated.

"No!"

"Puppy?"

"Hum! Brother Chi is a villain. You are a kitten and a puppy. "

"OK, you girl, do you think I can't clean you up because of the long distance? Don't you dare to brush me. You're going to turn the sky." Liu Chi turned his eyes and threatened.

"I'm not afraid. Haven't you heard a word: the sky is high and the emperor is far away." A burst of crisp laughter like a silver bell came into Liu Chi's ears.

"What? My 'big brother Zhou' has gone through the customs? " Liu Chi changed the subject, otherwise he could pull the calf with this girl until tomorrow without breathing.

"Well, it's out of the customs." Zhou Meng added, "I handed in my graduation thesis by the way."

"So fast?" Liu Chi was really surprised this time: "is it true or false? Didn't you fool me? "

"Of course it's true. As soon as I pass the thesis, I can get my diploma. It's only two or three days." Zhou Meng proudly said, "you taught me, too."

"It's not normal to be good, otherwise how can you be a student."

"I love to hear that."

"Hey, hey, hey!"

"It's midnight over there. You don't have to sleep?" Liu Chi looked at the time and asked.

"Well, I'll go to bed in the middle of the night."

"Girls should go to bed early, or they will grow old quickly."

"No, I'm a beautiful young girl." Zhou Meng said with a smile, "by the way, I'll go home in a few days. You'll invite me to a big meal at that time. You're a big man now."

"Make a living, careless." Liu Chi said modestly.

"Hum, anyway, it's all yours."

"OK, did you come back for a few days or stay for a long time?"

"I graduated... Of course I went back and grew up." Zhou Mengyi is quite natural.

"No problem. I have a free room at home. I'll reserve one for you."

"I want to stay in a five-star hotel." Zhou Meng is naughty.

"..." Liu Chi ignored it directly and forcibly changed the topic: "what about your parents when you come back? Do they support it? "

"I don't know. I haven't told them yet. I want to tell them after I get my diploma." Zhou Meng added: "anyway, whether the support is not supported or not, I must go back."

"Communicate well. Don't lose your temper, or I'll beat you." Liu Chi pretended that I was your teacher.

"I see." Zhou Mengyi, I'm a good baby.

"Call me when you decide."

"Yes!"

“......”

A week later.

Liu Chi grinned, rubbed his hands and looked at the newly assembled motor in front of him with a smile.

Done!

It's almost time to test the machine now.

After Liu Chi checked that there was no problem, he carefully connected the power, rechecked it again, confirmed that there was no problem, and pressed the switch.

"Weng..." the motor rang.

The spindle rotates at high speed in an instant.

Ten minutes later.

It works normally.

No problem;

Liu Chi looked at the motor still working hard and breathed a sigh of relief.

Then all kinds of tests will be carried out later.

Speed, vibration, centrifugal force, inertia... The most important are rotor dynamic balance and static balance.

Turn off the motor.

Test vibration first:

First install the corresponding instrument.

Fix the motor on one side.

Define 0 degrees.

Power on

After pressing the switch, Liu Chi turned his eyes to the display of the balance instrument on the side.

0.5g!

Uh

Liu Chi scratched his head, as if it was a little far away.

If you want to reach 1um, the spindle is only allowed to have an unbalanced residual of 0.2g at most. Liu Chi looked at the motor still working for a while and glanced at the value as motionless as an old stubborn.

It seems that the centrifugal force of the rotating body is unbalanced.

I don't know whether it is the magnetic field problem or the rotor mass imbalance. This can only be known through slow testing.

It doesn't matter. We can only go the right way and improve it slowly.

If you want to be in place at one time, it basically doesn't exist.

If the pressure generated by the bearing is the same, the problem occurs in the rotating body with balance, but the centrifugal force should be uniform in the high-speed rotation of the rotating body

Liu Chi touched his chin for a while:

Is it a material problem? Lead to different stress?

The material is uneven, or there are errors in blank, processing and assembly, so that when the rotating body rotates, the centrifugal inertia force generated by each small particle on it cannot offset each other.

That will produce obvious errors.

Even guide vibration, produce noise, accelerate bearing wear and shorten mechanical life.

......

Five minutes later, Liu Chi turned off the switch of the motor. After the motor stopped working, he took the motor apart and took out the rotor.

Now that it works, it's a test.

Find out the problem and modify it slowly.

Not in a hurry anyway.

Rotor balance:

Liu Chi opened the balancer se008, put the rotor on it and started it

Error 0.95!

That was 0.5g!

If the error is 0.95, it should be 0.3 g! That means the force field in the stator is uneven, adding 0.2g residual force to the rotor.

......

At more than five o'clock in the afternoon, ye Yuxin saw Liu Chi stop his work and hurriedly interrupted: "fool has dinner."

"Eat." Liu Chi returned to reality and looked at the time.

what the hell!

Half a day passed in the blink of an eye.

I don't seem to have done much work.

Alas!!!

This time is so useless that it passes in the blink of an eye.

"It's almost six o'clock. It's not good. We'll continue tomorrow."

"OK." Liu Chi looked at a pile of equipment on the workbench. It seems that he can't make it for a while and a half. Continue tomorrow and simply sort out the equipment.

Tidy up, archive, archive.

Turn off the instrument.

Follow Ye Yuxin out of the laboratory.

Go home!

"Stop!!!"

Just after leaving the industrial park and passing a path, Liu Chi suddenly opened his mouth.

'squeak... 'the car stopped steadily.

"What happened to Liu Chi." Ye Yuxin was startled.

"Nothing." Liu Chi waved his hand and looked at the beautiful shadow outside the window from the glass. The corners of his eyes couldn't help jumping.

Zhou Meng looked at the falling glass window, walked forward a few steps, came to the door, looked at Liu Chi in the window, blinked, and said with a little pride: "brother Chi."

Written on his face: surprise is not surprise, meaning is not surprise.

Ye Yuxin heard the speech and curiously put his head in the past.

A slim girl with a white coat and a black hat, about 1.65 meters, appeared in Ye Yuxin's sight.

The dark green silk covered half of his face and hung directly in front of his chest.

(elf girl) four words jumped into Ye Yuxin's mind.

"Yes, I can learn to play surprises now. I think you deserve to be beaten." After several seconds, Liu Chi regained his consciousness and stared at the girl: "get on the bus."

"Hey, hey." Zhou Meng made a face and finally got on the co driver.

"Where is the luggage?"

"Chiba Hotel not far from Huaqing." Zhou Meng honestly buckled his seat belt this time.

"Chen Fei, go to Chiba Hotel first." Liu Chi said to Chen Fei who was driving.

“......”

"Daughter in law, let me introduce you to Zhou Meng, my half apprentice, the 'big man' who came back from European x-bridge University." Liu Chi introduced Ye Yuxin, who had been silent on the side, that when the word "big man" was used, he also aggravated his speech.

"Call your sister-in-law." Then he added three words to Zhou Meng.

"Hello, sister-in-law. You are so beautiful." Zhou mengzhuan looked back at Ye Yuxin and envied the tunnel.

"Hello." Ye Yuxin nodded with a smile.

"What's the matter? I don't know when I come back. Say hello first? Can you change your character? In case something happens, how can I tell your parents? "

"I call it true temperament." Zhou Meng retorted unconvinced, "what's the fear of saying that China is not Africa? Can someone sell me?"

"With your bad temper, be careful not to find a boyfriend."

"Who says, although I don't have it now, there will be someone waiting for me in the future, waiting for me to meet him one day." Zhou Meng is proud and charming. It says: compare your heart, compare your heart

"King of hell." Liu Chi's backhand is a knife.

"Poof..." Ye Yuxin on the side puffed and couldn't help laughing.

"Stinky Liu Chi, dead Liu Chi, you bully me." Zhou Meng was flustered. If the seat belt hadn't been tied, the whole person would have rushed over and saw Ye Yuxin on the side: "sister-in-law, you see this guy bullying me again."

"Liu Chi, you don't know. Let's have a little sister Zhou Meng." Ye Yuxin liked this straightforward little sister a little.

"Let?" Liu Chi glanced at them and snorted, "this girl rubbed her nose and face for a while."

"No one else!" Zhou Meng shouted that he was wronged.

"You think I know you for the first day?" Liu Chi's eyes turned.

"Hum!"

“......”

"Boss, Chiba Hotel is here."

"Er..." Liu Chi stopped his mouth, looked out of the window, turned back and asked Zhou Meng, "is this it?"

"Yes!"

"Yuxin, wait for me here. I'll go up with Zhou Meng to get my luggage." Liu Chi added, "you find a place to rest here. We'll come down in a minute."

"Well, you go!" Ye Yuxin nodded.

"Big brother Zhou, let's go!" Liu Chi opens the door.

"Oh!"

Looking at the two people who disappeared at the door, ye Yuxin decided to have a chance to ask the girl who suddenly appeared and said to Chen Fei, "find a parking space and wait slowly."

"Good!" Chen Fei nodded.

Chiba Hotel 706 business suite.

"Brother Chi, do you want to drink water?" Zhou Meng took a bottle of water from the counter and handed it to Liu Chi.

"You want to freeze me in such a cold day?" Liu Chi despised and looked around the environment. He felt pretty good. He went to the sofa and sat down: "how long have you been back?"

"Last night."

"Don't call me?"

"In the middle of the night, I'm afraid you scold me!"

"Come on, you girl. When are you afraid of me scolding you? Clean up quickly. Your sister-in-law is waiting downstairs?" Liu Chi looked at Zhou Meng standing silly and urged.

"Well, wait for me." Zhou Meng stuck out his little tongue and packed his luggage at the speed of seven or eight hands.

ten minutes later!

Liu Chi pushed a large suitcase out of the hotel door, followed by a small tail carrying a bag.

When Liu Chi put his luggage away, he found that Zhou Meng occupied the back row!

But then I can only take the co driver.

Buckle up your seat belt and signal that Chen Fei can go.

"Brother Chi, it's my birthday in a few days. What are you going to give me?" While Liu Chi was in a daze, Zhou Meng patted the back of the chair.

"What does your girl want?" Liu Chi turned back and asked.

"Think about the gift yourself. Only in this way can you show your sincerity."

"OK, I see. I'll study it later." Liu Chi added, "tomorrow I'll buy you a skirt in Times Square."

"Hey... How come you are also a big boss with tens of billions of dollars. How do you mean to buy Skirts? Earth is not earth. " Zhou Meng's mouth was filled with discontent.

"What do you want? At least I'll buy hair. I'm such a big man. I'm not sincere enough to buy gifts for you in person? If you change someone, I'll buy one directly from Taobao for 9 yuan and 9 parcels. "

"Cheapskate, drink cold water..." Zhou Meng said for a while. He saw Liu Chi ignore himself and busy pulling his teammates: "sister-in-law, you see brother Chi, he was like this since childhood. In fact, he was mine."

"Can you touch your conscience when you talk?" Liu Chi despised and said, "can I have a face?"

“......”

After fighting for a while, Liu Chi changed the topic and asked, "what are you going to do later? Will you return it?"

"Don't go back."

"What about your parents? They agree?" Liu Chi frowned and asked.