Chapter 1474

Although you guys are not suitable for Zhuang Jianye's ubiquitous outfit 13, you have to admit that China has taken off its dominant position in deep UV nonlinear optical crystals.

The reason why the pure domestic 193 nm lithography machine broke through the technical bottleneck so quickly and was widely used is that the breakthrough progress made in deep UV nonlinear optical crystals by the Tengfei optical Research Institute under China Tengfei not only broke the foreign monopoly, but also reduced the power consumption by 40%.

Because of this, Zhuang Jianye said that the excitation light source in the atomic clock used a laser with a deep UV nonlinear optical crystal as the core, and everyone present was immediately surprised.

No way, people's China take-off is the ancestor of this field, of course, how to play and how to have.

It's just a matter of admitting technical status for a while. Talking about money and pretending to be 13 is another matter.

But Zhuang Jianye, like the old faces of all the big men, was really covered by the hats of dustproof clothes and couldn't see any expression. He was still talking about it all the time: "No way, the payload of our ztm-nb-6 solid launch vehicle is only 700 kg, so the total weight of our new generation of marine environment exploration satellite is planned to be controlled at about 500 kg. Unfortunately, we have not achieved the expected effect on the hydrogen atomic clock, so the subsequent marine environment exploration satellite has to be readjusted..."

Zhuang Jianye sighed and looked helpless: "Therefore, we can only increase the total structure of the satellite platform from 519 kg to 637 kg, with a size of 2.8 meters long, 1.5 meters wide and 1.2 meters high; the total power is 1.5 kW, including 115 kg communication load and 808 watts power. The precise positioning module including rubidium atomic clock and hydrogen atomic clock is used to cooperate with the 1.5-meter global beam antenna and synthetic aperture radar , it can provide real-time environmental conditions of key sea areas.

In view of this, we are ready to deploy the new generation of marine environment exploration satellites in the constellation situation, using three crossed circular orbits with an average height of 238km. Three working stars and one backup star are deployed in each orbit, a total of 12 satellites, and the satellite operation cycle is 14 hours and 4 minutes.

With the 8-year service life of the satellite, we can realize the real-time update frequency of less than one hour for the East Asian sea areas in the first decade of the 21st century, especially the key sea areas between the first island chain and the second island chain. This is also our construction and design plan in the first phase of the marine environment exploration satellite project. In the second phase, we will further double the number of constellations to 24, so as to realize the key sea areas The real-time refresh rate is less than half an hour... "

Zhuang Jianye described the prospect of the future marine environment exploration satellite as magnificent, that is, the site is not right now, and his clothes are also bound; if you change to a large theme venue, there is a large screen behind him and a full audience in front of him. Zhuang Jianye is putting on his T-shirt and jeans, and promises to raise his hands and shout: "Let's suffocate our dreams!"

Unfortunately, the leaders in front of him are all down-to-earth doers. Zhuang Jianye just shouted flowers for his dreams, but the leaders were still unmoved. Therefore, Zhuang Jianye turned to reality and continued to sigh: "Today, the main obstacle affecting the advancement of our marine environment exploration satellites is capital. We originally expected the total cost of satellite manufacturing, launch and operation to be 2.8 billion yuan. However, because our satellites weighed more than 100 kilograms as planned, the cost of each launch increased by more than 30 million yuan, and the overall overspending was nearly 400 million yuan..."

"Wait... Mr. Zhuang, what is the total cost of your 12 marine environment exploration satellites? 2.8 billion yuan?" before Zhuang Jianye finished speaking, an accompanying Aerospace expert frowned and asked.

Zhuang Jianye quickly corrected when he heard the speech: "2.8 billion was the previous budget. Isn't the satellite overweight now? The cost has exceeded. Now it has risen to 3.2 billion."

"Even 3.2 billion is not right. The launch cost of 12 satellites will be almost 1.2 billion yuan. There are a lot of satellite follow-up measurement and control, on orbit maintenance and data transmission, which will add up to 800 to 10 billion yuan. What is the cost of your marine environment exploration satellite? Less than 100 million yuan?"

"To be exact, 75 million yuan each." Zhuang Jianye corrected again: "but this is not the key, the key is the launch cost..."

"How much did you say just now? 75 million yuan? Only 75 million yuan for a satellite with rubidium atomic clock, hydrogen atomic clock, synthetic aperture radar and advanced communication equipment?"

This time, Zhuang Jianye was interrupted by the aerospace expert just halfway through his speech. When Zhuang Jianye heard the speech, his face showed a look of sweat that only young people often have: "It's a shame that we didn't do a good job in cost control. According to our original intention, we should reduce the cost of the satellite to less than 50 million yuan. As a result... The satellite is overweight... Alas... It's our fault that we didn't do a good job in system integration, which added trouble to the country..."

"If you bring trouble to the country, we old friends should get into the womb and rebuild it! The unit price of more than 600 kilograms of satellite is only 75 million. This is not to add trouble to the country. It is clearly to contribute to the country!"

The aerospace expert finally couldn't help it. He simply didn't let Zhuang Jianye go on. If he had seen Zhuang Jianye pretend to be 13 before, at this moment, Zhuang Jianye in the eyes of the expert is the best child in the world.

More than 600 kilograms, with a unit price of 75 million yuan, dare to walk sideways anywhere in the world. There is no way. It's not generally cheap, but cheap to grandma's house.

You should know that aerospace products are also gold eaters. There is no way. The usual satellites and spacecraft are customized products. Not only the material cost is expensive, but also the production cycle is long. Usually, the assembly of a 100 kg satellite can't come down in half a year. Because of this, the cost of aerospace products is not generally expensive.

Take the 600kg satellite for example. The usual cost price is about 150 million, which is still the basic price. If you add some advanced equipment, it can soar to 200 million directly.

China's take-off of satellites of the same level is only 75 million, only half of the original price.

This is equivalent to the half price sale of the Porsche 911. In the eyes of people who really know the goods, it is a big bargain.

Obviously, the aerospace expert is a person who knows the goods. He is very few. He is immediately ready to hand over the satellites designed by the Aerospace Institute under his leadership to China for take-off production, but he stops talking. After all, as people in the industry, he knows how long the cycle of satellites is. Usually, a large factory works overtime and can't produce 10 satellites a year.

There are many space missions undertaken by China's take-off, and they may not be able to be busy. How can they spare the strength to undertake other businesses, so they can only shake their heads regretfully: "unfortunately, we have several satellite projects in hand. If you can be busy with China's take-off..."

"Professor, if you need us to take off in China, you can tell us that the capacity of our newly established satellite production plant is 128 satellites per year. If you have work there, just give it to us. We can be busy..."

"What are you talking about?" the expert was shocked when he said this: "an annual output of... 100... 28?"