"All of you here, have you ever experienced a large magnification telescope?"

In the summer of 1995, there was a buzz outside the institute, and although the air conditioning in the conference room was running at full power, it could not suppress the fiery mood of these young people.

Lin Qianjun's question caused a chuckle in the conference room, and Wang Zhongjun, the head of the laboratory who was sitting on his left, turned his head sideways and explained softly.

"Director Lin may not have noticed when he came, but there is actually an astronomical telescope on the roof of our building. From the lens to the image processing system, the telescope was polished and built by our researchers. ”

This Wang Zhongjun is a big man, a future academician level. After the cooperation between ST and the Institute of Optics and Mechanics, Hu Wenhai personally lent him by name, and invested no less than 30 million US dollars in the supporting laboratories for him.

"Okay, let's get straight to the point. The big guy explained in person, Lin Qianjun could only touch his nose, smiled awkwardly, quickly collected his emotions, and continued: "Those of us who have used binoculars in the army know that it is not easy to see in the distance. Not only high-magnification lenses, but also a pair of strong arms. Otherwise, the higher the magnification of the telescope, put it in the hands of a person who has no power to restrain the chicken, the more he will not be able to use it well. This is because the telescope's field of view is very small, and if it cannot be firmly controlled, the slight movement of the person's hand may have lost the target field of vision. ”

"This is true not only for our binoculars, but also for researchers in the lab. Looking from the Earth into space magnifies this situation to a very extreme degree. If the telescope is directly controlled by human hands, it is almost impossible to achieve satisfactory observation results. ”

The reverse is true. A simple way to observe the Earth from space is to send a telescope to the sky. However, as a satellite system that carries a telescope, if we cannot control our attitude and the movement of internal mechanical equipment well, then our telescope's field of view will also be drastically affected. ”

Speaking of this, he held the conference table with his hand, looked at everyone in front of him, and said with some heaviness.

"I think everyone should be very clear about the current international situation. In particular, the experience of Mr. Lu Yinglong of ST Group can be said to be a wake-up call for us. With the current developments in the South China Sea, we must not only be prepared for negotiations, but also be prepared to gain more bargaining chips for negotiations. ”

"The Americans have sent two aircraft carrier fleets over to show off their might at our doorstep! What about us, I can only admit that we have no way to take the aircraft carrier fleet. Their fleet is hiding in the Pacific Ocean, and our planes can't reach it or find it. It's not good to be blocked at the door!"

"It's not that we don't have equipment that can threaten aircraft carriers, and the range of the Second Artillery ballistic missile is enough to cover the entire planet, but the Americans are not afraid of this. Why? Because we can't find the location of the aircraft carrier fleet, unless we drop hydrogen bombs, our missiles are like blind men shooting arrows, and we can only guess by luck. ”

"The Americans are not afraid of this, we will not have a say in the South China Sea, and our enemies will not be willing to sit back at the negotiating table. After the last technical survey, the state realized that if it wants to solve the problem, only you can do so!"

"We're just a business research institute......

The researchers below were chattering and messing around, and no one thought that such a big thing as the international situation would one day fall on their heads.

Only Wang Zhongjun, the person in charge of the laboratory, was silent, as if he had thought of something.

"yes, I don't need to hide it from everyone. I said that of course the blind man can't shoot arrows, so let the blind man grow eyes. This eye is none other than a satellite in the sky. If you are all researchers at ST Research Institute, you should also know the current development of CCD chips. Thanks to the composite CCD technology, we can now increase the resolution of Earth observation to the level of 1 meter through some technical means. However, in order to achieve this technical specification, in addition to the lens and CCD, we need a pair of precise arms that can meet the needs of continuous tracking of hot spots, long exposures, target locking, aperture adjustment and other technologies. ”

"In the satellite we are planning to launch, there is a need for a technology that can control the feed system with extreme precision. We've searched all over the country, and it's safe to say that only you can hope to meet our needs. ”

After Lin Qianjun's explanation, these researchers suddenly realized.

Of course, Lin Qianjun only explained the part he needed to explain, and the entire battlefield system was actually much more complicated than that. 1234

Satellite positioning to attack aircraft carriers requires an extremely complex system construction, which is not at all possible for China in 1995. To spy on the US aircraft carrier fleet, what is needed is not a satellite, but a constellation. In addition to this, even if you know the location of the aircraft carrier fleet, the point is that the Americans are not blind. As long as the signs of ballistic missile launches are detected, the aircraft carrier fleet is not without long legs, and it is still running very fast. So you also have to have the ability to trim the middle section of the ballistic missile to shoot the elements, the ability to slow down at the end and the ability to search for guidance......

It was indeed a great whimsical idea for a ballistic missile to hit an aircraft carrier, but it was doubtful that the Soviet Union had realized it back then, let alone China in the 90s.

The problem is, however, if all this were to happen on China's doorstep, the situation would be different.

The constellation was formed to track the U.S. aircraft carrier fleet around the world, but we know that the American fleet is now blocking our gates. The sea area east of 4V is 750 kilometers, which is basically the range from Okinawa south to the Philippine Sea, and the two aircraft carrier fleets are properly located in this sea area. Constellations are needed to monitor the world, and to monitor such a sea area, it is enough for a low-orbit satellite to scan it once a day.

Secondly, the satellite does not need to guide ballistic missiles, it only needs to indicate an approximate range. The patrol range of the US aircraft carriers will not exceed the combat radius of the F-14 -- even if there are tankers, otherwise they will not have time to rush over in the event of a war! That is to say, if you can come, the Chinese F-14 can also pass.

After grasping the general range of the US aircraft carrier, it is completely possible to take off the Chinese F-14 group to attack it. Even if it is not possible to break through the air defense network of the US fleet, at least its specific coordinates can be returned. Unlike the Dongfeng missile, which has a mission to be reached, the Julang 1 carried by the 092 has a range of 1700 kilometers and will not give the aircraft carrier fleet any reaction time.

We neither seek hegemony nor expansion, let alone a sphere of influence, but only want to keep this one-third of an acre of land at our doorstep. The U.S. fleet has to be sent to the muzzle, and we can't help it, right?

In turn, if you don't look at their respective industries, then when it comes to macro measurement resolution technology in China, it must be the nano-grating laboratory of the Institute of Electronics of the Non-ST Research Institute at the forefront of China.

Unlike conventional measurement techniques, encoder measurement offers unbeatable advantages. Because it doesn't measure the length, but the wavelength of the incident light, and then measure the angle of diffraction, you can get the length of the displacement.

If nanograting technology can mature, it will not only be applied to satellites. In fact, it means that the precision of human manufacturing is improved, which can bring about an up-and-coming impact on the entire manufacturing industry. Breaking through measurement technology to the nanometer level could increase China's industrial potential by at least two orders of magnitude, to the level of the entire eighties in the United States.

Although nanogratings do not directly affect people's lives, and lithography machines and spy satellites do not seem to have much to do with each other, they are not. The system of the lithography machine is also an optical instrument composed of light source, lens, feed, and control technologies. In terms of composition, spy satellites, phew, and agricultural census satellites are also light sources, lenses, feeds, and controls, but the process is reversed. The lithography machine is its own luminous silicon wafer, while the spy satellite is the CCD of the earth that emits its own light.

Both systems cannot bypass feed and control, and the resolution of the lithography machine determines the accuracy of its processing, and the resolution of the spy satellite determines even more. Composite CCD technology requires long exposures, which require the lens to focus at a fixed point over a period of time and then scan multiple CCD sensors to obtain a high-resolution photo.

In this process, even if there is a micron movement on the satellite in the low-earth orbit of 500 kilometers, the focus of the earth may run as far as a prefecture-level city, and the scanned photos will definitely not be able to be seen.

In this feed and control system, the accuracy of the open-loop system is obviously not sufficient. However, if you want to close the loop, then you need a feedback process. How much has the feeding system moved, and whether or not it should continue to be fed? Ordinary measurement technology cannot meet its needs. At this point, only nanograting technology can make this closed-loop system reliable enough.

The nanograting is equivalent to the nervous system in the eye movement muscles of the eye.

In the summer of 1995, at this time, the next international changes were just brewing, and the Americans didn't know it, neither did Iwasato Masao, and Hashimoto Ryutaro and Kim Yongsan didn't know-

There is such a group of young people, no, not just such a group of people, but many, many young people, middle-aged people and old people. More researchers are being organized in this land to contribute their talents to a bold project.

I want to hold my breath and give the robbers some color.

Wanting to wait until all this happens, suddenly jump out and ask the people who run to someone's door out loud.

"How's it going, surprised?