Chapter 212 It’s all done! (3k)
"What Director Gao means is that by using a photosensitive element to detect the brightness and darkness of the monitor screen, you can know how long the diameter of the crystal has grown? Then use the output of the photosensitive element to perform equal diameter control! "
"Hey, this method is really interesting, simple, but feasible."
After hearing the explanations from others, Yu Yuncheng understood and slapped his thigh: "Okay! Director Gao! , your method seems simple, and it really relies on the existing conditions to solve the problem! It’s wonderful to think of solutions outside the equipment itself!”
To say that this method is not crude, it seems to be relatively crude. , have you ever seen a sensor attached to a monitor screen? Does it look good? It may not look good, but can it solve the problem? It really works.
Gao Zhendong smiled and said: "This method may not look good, but it can solve the problem."
After that, he drew a picture.
“Let’s stick a row of sensors on the monitor like this.”
Some people didn’t understand: “Director Gao, just stick one on the screen at the corresponding diameter. Why? It would be a bit wasteful to stick a row of them."
Gao Zhendong said with a smile: "Under different conditions such as temperature, environment, and drawing objects, even with the same diameter index, the output of a single sensor is It will change, and it is difficult to characterize the same diameter with the absolute value of the output of a single sensor.”
Someone understood what he meant: "Director Gao, your idea is to use the relative difference in the output of a row of sensors for control? In this way, the temperature drift and other errors of a single sensor can be largely offset or corrected?"
When the others heard this, they couldn't help but admire it. Director Gao's method was simple. It used a simple system, or sensor array, to solve the problem of single sensor output caused by various reasons. Absolute value error problem.
If you have an idea, how about saying he is the director.
Gao Zhendong smiled and said: "That's right, and it's not just this benefit."
Are there any other benefits? Everyone looked at Gao Zhendong with curiosity and admiration, waiting for him to continue.
"A row of sensors is like a ruler, which can be used to control different diameters without changing the installation of the sensors. A single sensor is like a switch, which can only be used to control a fixed diameter. Once the target diameter changes, It means determining the sensor installation position and recalibrating the data, which is very troublesome for production. "
This is actually the difference between a limit switch and a rotary encoder.
The limit switch can trigger action only when the monitored object reaches a fixed position.
The rotary encoder can record the movement distance of the monitored object and provide more control.
Everyone quickly wrote down Gao Zhendong’s ideas. As for the specific implementation, it was their business. The food was already in their mouths. If they still couldn’t eat it, then it was their own problem.
Taking this opportunity, they also asked Gao Zhendong for advice on some questions in their work, especially in terms of automation. It is no exaggeration to say that in this regard, compared with Gao Zhendong's theory and practice, they combined None of them.
A person who has studied automation for two lifetimes and still cheats is so arrogant.
In the atmosphere of busy work and relaxed mood, a few hours passed quickly.
After the drawn crystal was cooled and sent for inspection, the preliminary results and the crystal body were sent over.
Yu Yuncheng read the inspection report carefully and handed it to Gao Zhendong excitedly: "It's done. The indicators such as crystal orientation, dislocation, purity, doping concentration, structure, etc. have all met your standards. ”
Gao Zhendong also happily took the report, read it again, and then carefully looked at the crystals sent together.
This is a pinkish crystal, slightly slender, except above the shoulders and below the tail. It is cylindrical in the middle, with a diameter of 5.7cm and a length of 11.3cm.
Because the doping concentration is not high, it is light pink, which is completely different from the garnet red of high-quality natural rubies, and is very beautiful.
It's really done. At least it seems to be consistent with the crystal required for ruby laser.
Even in some aspects, it has to go beyond that. After all, this single crystal furnace is a technological achievement decades later. Even if it is limited by the existing conditions, it is possible that its products will be better than the current ones. of.
"Okay! It's done this time. Yun Cheng, you continue to experiment with silicon single crystals, and strive to draw qualified silicon single crystals as soon as possible based on this!"
Gao Zhendong called The man sent the ruby crystal for processing, and then turned around: "Comrades, I announce that the trial production of the single crystal furnace has been initially successful. We have used this single crystal furnace to pull out the first ruby crystal that meets the requirements. Product!”
Everyone cheered. Although it is not a silicon crystal, a ruby crystal is also a crystal. The name of this project is a single crystal furnace, not a silicon single crystal.
Gao Zhendong smiled again and said: "Next, we will continue our efforts and strive to develop the process of using this single crystal furnace for silicon single crystal production as soon as possible and make it solid. Do you have confidence?"
“Yes!!”
Everyone laughed and shouted in unison.
Now it seems that both the ruby crystal and the single crystal furnace have been initially successful.
With this achievement, everyone in the project team is very excited.
Gao Zhendong also laughed, but although the single crystal furnace was initially successful, it was still some way from being completed.
First, some control algorithms can be further tuned, and the range of some control parameters needs to be more precise.
Second, its most important and urgent product—silicon single crystal that meets the requirements—has not yet been successfully produced. The third is that some nodes and processes that are currently controlled manually and through experience still have room for switching to automatic control and optimization.
The fourth is some mechanical and structural parts, as well as the possibility of optimization and improvement.
Gao Zhendong explained these items one by one to Yu Yuncheng and the project team members. Everyone wrote them down carefully. This is the next step.
The directions and requirements given by Director Gao are very clear, which allows them to work with clear goals and not waste too much time and energy in irrelevant directions.
After this experiment, I worked from morning to afternoon. After all, time cannot be compressed.
Looking at the watch, it’s almost dinner time.
As usual, Gao Zhendong announced to everyone that he would arrange dinner in the small cafeteria in the factory. It was a small celebration for everyone. After all, this was also an important milestone, so it was good for everyone to be happy.
Gao Zhendong paid for this himself. It is quite common these days for leaders to spend their own money to celebrate the achievements of their comrades. After all, it is not easy for the public sector. For example, when the founding fathers who lit the sun found the squirrel.
Although this kind of midway milestone is important, it is not appropriate for the public to pay for the celebration. Private organizations are just fine.
Everyone was extremely happy. In that era, the dinner party was a relatively important ritual and a relatively important social occasion. In those days, inviting people to dinner was a real test for cadres. .
Yu Yuncheng said: "Director Gao is very generous. Let's give Director Gao a good blow today, haha."
Gao Zhendong smiled and said: "No problem, everyone just relax. ”
Gao Zhendong asked someone from the project team to run an errand and go to the canteen to prepare for the dinner.
When Silly Zhu heard that Gao Zhendong was having a dinner party, he was very happy. For no other reason than that, today’s small lunch box has meat!
He immediately took over the responsibility of being the chef. It wasn't that the other chefs didn't want to grab this opportunity. The food in the small canteen was definitely better than that in the big canteen. Silly Zhu was not the only one who had a small lunch box, everyone had it.
But everyone knows that Director Gao of the Technology Department’s Research Office is treating a guest, and the person in charge must be Master He. He has not run away. This matter cannot be overtaken. He has also offended Silly Zhu, and may even offend Gao. director.
It was almost time to wait, and a group of people in the research room walked toward the canteen in a hurry.
The comrades in the factory who saw them along the way were all whispering.
“Hey, is there another dinner party at the Technology Department’s research office?”
"Looking like this, it must be so. It seems that something good has been produced again."
"Director Gao of the research office should start with it. I heard that Director Gao has this habit and has achieved some results. Always treat the participants to a good meal."
"Oh, it would be great if I were also in the laboratory."
"You? Go take a pee first. , and then go back and give more incense to the ancestors, maybe there will be a chance."
"Gungun, you are so boring!"
"That's right, what nonsense are you talking about?"
"."
In the small canteen, Deputy Director Li is also here to entertain guests.
Seeing Gao Zhendong leading a large army, he was stunned at first, and then overjoyed. This was another achievement.
He knows quite a few of these people. Comrades such as Gong Yu who came from other units to participate in the project have gone through the relevant procedures under his hands.
Gao Zhendong brought these people to the small cafeteria for a dinner. There was only one explanation. Their affairs were progressing very well. Not to say they were completely successful, at least they had achieved some key points.
As long as the research laboratory produces results, the factory will take advantage of it. It is nothing more than a big or small problem.
He was not in a hurry to go there, but was busy with his own reception first.
After a while, he heard that it was getting lively over there, so he apologized to the guest and walked over with the cup in hand.
Before anyone arrived, the voice came first: "Haha, Director Gao, looking at your attitude, have you achieved results again?"
Gao Zhendong stood up and said with a smile: "It's not the final result, but it's an important node, so I invite everyone to be happy."
Deputy Director Li said with a cup: "That's also gratifying and congratulatory. Come on, come on, let me toast you all. On behalf of the factory, I would like to thank the comrades in the research office and Mr. Yu for your hard work during this period.”
This is a respectable toast from the factory leaders. Everyone stood up and responded to the matter.
After drinking, Deputy Director Li gave Gao Zhendong a wink.
(End of this chapter)