Chapter 483 It’s finally Lao Li’s turn

"You mean the rotating scanning system? Well, it's been made. If you can't make it even though you have the blueprints, then you might as well go home and sell sweet potatoes. But it's still being tested, and it's estimated that it will be almost ready after New Year's Day."

As soon as Mr. Lu opened his mouth, it was good news.

Then we can almost test the core of the line scan thermal imager. Although the semiconductor cooling has not been completed, we can ask the Institute of Research to get a vortex tube compressed gas cooling device and connect a larger compressed air cylinder. It can be used for a short period of time.

Gao Zhendong put down the phone and rubbed his hands excitedly.

Before I could rub it a few times, the phone rang again.

There were more and more things to do, and Gao Zhendong answered the phone while sighing.

The call was from comrades from the 12th Ministry of Machine Building. After more than ten days, they finally figured out the overall situation of domestic rotary encoders.

After hanging up the phone, Gao Zhendong received a letter in his email mailbox.

The letter had an attachment, which was an investigation report on rotary encoders.

Gao Zhendong opened it and took a look. The report was very detailed, but it could be summed up in just one word.

--lack!

There is a lack of stable supply of rotary encoders in China, and the limited ones are all imported from abroad. Moreover, there are no multi-turn rotary encoders that meet Gao Zhendong's requirements.

There is a rotating transformer, which is also a kind of rotary encoder. It relies on the voltage waveform output by the rotating transformer to judge the rotation state. It is an analog encoder.

You can have multiple circles, and generally they are relatively coded, but the advantages and disadvantages of this thing are equally obvious, and Gao Zhendong cannot use that advantage.

It can be used for high speed, high and low temperature, and impact resistance, but this is of no use to Gao Zhendong's idea.

On the contrary, it is because the encoder itself is complex, has analog output, and is difficult to solve, and has high requirements for the acquisition circuit, that the entire system is expensive.

This is fine, after all, Gao Zhendong wants to use it in a micro-projection lithography machine. The output of this thing will not be too high, and it is not unbearable that it is a bit expensive. The key is that the reliability and accuracy of the imported rotating transformers at that time are quite average, which is hard to tolerate.

In fact, there is something called a mechanical encoder, but it is basically unavailable in China. If there is any, they are some highly targeted specialized equipment that need to be modified onto the workpiece table of the lithography machine. In Gao Zhendong's opinion, the B movement is more troublesome than making a new photoelectric encoder.

After thinking for a while, Gao Zhendong began to write a reply on the computer.

Not long after, the printed copy of the letter was transferred to the desk of the leader of the 12th Ministry of Machine Building. He had asked that the news about Gao Zhendong of the 17th Ministry of Machine Building be passed to him.

While reading the letter, the leader discussed it with the comrade who delivered it.

"He wants a multi-turn encoder with stable performance and higher accuracy?"

The comrade who delivered the letter said: "Yes, more than ten days ago, he asked us about the current status of domestic rotary encoders. This is his reply after receiving our research results."

"It seems that he is not satisfied with the current ones. Well, since the usage is not large, he suggested that we can seek imports from Oceanic Treaty Organization countries such as Gallic roosters, or East Hans cats through the Ministry of Foreign Trade. It seems that he is quite frugal. If the usage is small, he will directly seek imports."

The comrade who delivered the letter shook his head: "Not entirely."

“Not all of them?” the leader of the 12th Ministry of Machine Building asked, turning a page, and then his eyes widened.

"If there are any problems with imports, and there are people in the Twelve Machinery Departments who are interested in this, please contact me. I have some thoughts on this. If all parties work together, we should be able to accomplish this goal."

Gao Zhendong followed Lou Xiao'e to read the thread-bound books found in Panjiayuan every day. He spoke normally, but was a little weird when writing letters. Fortunately, the leader of the 12th Ministry of Machine Building was once a man who could command thousands of troops and write thousands of words, so he could understand him at a glance.

——I can do it, come to me if you want to do it!

In his opinion, this is what Gao Zhendong meant.

He guessed right. For Gao Zhendong, as long as there was a factory willing to be a tool man, it was not difficult to make a usable photoelectric multi-turn relative encoder. This thing did not even have any high requirements for processing technology.

The leader of the 12th Ministry of Machinery immediately put the document aside and said: "You should immediately send a notice to the factories that make electronic components in the system to recruit talents. Select someone who is willing to work hard and has strong technical ability, and let them find Gao Zhendong!"

Gao Zhendong is a ruthless man. If he can’t get it, he will do it himself!

He had no doubt at all whether Gao Zhendong could do it. He guessed that Gao Zhendong asked the comrades from the 12th Ministry of Machine Building to find him purely because he was too busy and had too many things to do. Things like rotary encoders were not something he could handle personally.

But this does not mean that the rotary encoder is useless. This thing has many uses in the automatic control system. It is said that my country originally established a special organization for this thing in 65, but it was not until 82 that production officially began. In the eyes of the leaders of the th Ministry of Machinery, this good thing that came to their doorstep, any hesitation for a second would be disrespectful to the rotary encoder.

Import? Import? Import requires foreign exchange. Wouldn't it be better to use it to buy food? Besides, it's still unclear whether they will sell or not. I won't bother the comrades from the Ministry of Foreign Trade.

Gallic Rooster: Why the hell didn't you at least ask? How dare you assume I wouldn't sell it?

To be honest, at this time, the Gallic chickens would really sell things like rotary encoders as long as they had them.

At this time, it was also the end of the year, and they were looking at the annual import and export list, and they felt a very strong and strange emotion.

"My dear Le Goff, that country in the East is an agricultural country, isn't it?"

"Yes, Mr. Senna, without a doubt."

"Compared to them, we are an industrial country, right?"

"That is an irrefutable fact, Mr. Senna."

"Then tell me why they export computers, intellectual property licenses, complete sets of computer software, and special steel to us, while we export urea, grain, urea, grain to them..."

"This... this is only temporary. Besides, we still exported some integrated circuit chips to them, sir."

"Then explain to me why the things they bring over cannot even fill a single cargo ship, while we need many ships to transport them over? Those pitiful chips? I have to remind you that they belong to the Citibank guys, not us! We are just a middleman."

"We export a lot of goods, Mr. Senna."

"Enough, Le Goff, I am not one of those idiots in the House! Next year, this situation must be reversed and we must live up to our status as an industrial country."

"Okay sir, I will add this to my memo. This is their latest list of export products. Are you interested in taking a look? There are some very interesting things." Le Goff cooperated very well and wrote down Senna's words, then took out another document.

This made Senna furious: "Get out of here! Le Goff! They won't be able to make a penny from me again this year!"

"As you wish, Mr. Senna, we will discuss this matter next year."

This list also flew to the other side of the ocean, but in the form of a film in a foreign airmail parcel, but the speed was very fast, and the duration was not even longer than the time it took for the list to circulate in the Gallic bureaucracy.

The Americans are also very interested in the trade that the Gallic roosters carry on their backs with Eastern countries.

"Email system? What is that?" asked an intelligence analyst at the Langley Center, looking at the new addition to the list. It was beyond his comprehension.

"It looks like electronic technology is used to transmit mail. Maybe this is a telegraph system." Another employee who was more familiar with this gave his own opinion.

"Holy Shit, this thing costs more than their computer!" said an employee who was sensitive about economic issues.

"Oh, then I think this thing should be called 'Advanced Telegraph System', or ATS for short."

The Citigroup guys once again demonstrated their talent for naming, just like their STEED (Silent-Tactical-Energy-Enhanced-Dismount) which cost $8 million to develop and had a unit purchase price of $17.

Although no matter what it is, as long as it has the word "tactical" in its name, it will be expensive, but the two-wheeled vehicle of Citigroup is obviously still a bit outrageous. Maybe it's because the name is too good, at least it's long enough.

Hot knowledge: when searching for "tactics XX" on shopping apps, remove the word "tactics" and search again, you may find a surprise.

"I think we should consult AIEE or IRE." There are still knowledgeable people in the Langley Center. AIEE (Institute of Electrical Engineering) and IRE (Institute of Radio Engineers) are the predecessors of IEEE.

"OK, I'll ask next year," the original employee joked, adding that it was now Saturday, December 1960, 12.
-
On the same day, Sha Zhu brought his team's report on self-heating food and fire-free self-heating patches to Deputy Director Li.

Even though Gao Zhendong doesn't take this thing seriously, for Old Li, who is in charge of logistics, it is like a huge pie falling from the sky.

Deputy Director Li did get some of the profits from the projects and subjects that Gao Zhendong and his colleagues had worked on before, but unfortunately he was not in the technical line or the production line, and he was not the top boss, so no matter how hard he tried, he could not get the biggest share, which made him quite regretful.

Suddenly, he saw the cook in the cafeteria bringing a scientific research project mainly about cooks to him, and he also said that it was a serious project proposed by Gao Zhendong from the Third Factory, who personally approved and helped. This made Deputy Director Li feel that "it's finally my turn".

Regardless of the size of the two topics, the fact that the research content really falls within the professional scope of the logistics system under his charge is enough for him to devote all his efforts to it. This is also the reason why Gao Zhendong directly let Sha Zhu go to find Lao Li.

(End of this chapter)