Chapter 22 Proximity Fuze Editor-in-Chief Fan confesses

Zhang Zhimu, who was enjoying with his eyes closed, really didn't want to think about the question anymore, so he didn't answer Xiao Hongyu's question, and Xiao Hongyu didn't ask again, and continued to massage gently. Zhang Zhimu, who was in a daze, felt as if he had slept for a while, and when he opened his eyes again, he felt much clearer. Looking up, seeing Xiao Hongyu napping on the sofa next to her and moving her neck, Zhang Zhimu asked, "Hey!" Why didn't you wake me up? What time is it? ”

"I saw you were so tired, I didn't wake you up. Now that it's getting dark, I called my sister-in-law and said you're on my side today. Xiao Hongyu got up and came over, handed Zhang Zhimu a glass of water, and replied.

"Oh! It's much clearer now. Zhang Zhimu said, "Let's go!" What good things do we eat today? ”

"Let's go! You'll know when you go back. Xiao Hongyu stretched out her hand and pulled Zhang Zhimu up.

It was already the beginning of the lanterns, and the sky was a little chilly, but Zhang Zhimu felt that he was in a good mood, and when he saw the fresh air, his mind was clearer. At this time, looking at the street lamps on the street, he felt a little like his previous life, and Zhang Zhimu even felt that the current kiln gang was much more prosperous than the small city in his hometown when he was a child.

Holding Zhang Zhimu Xiao Hongyu and asking, "Do you remember what you promised me?" ”

"What are you talking about? I don't usually remember. Zhang Zhimu said.

"You! You never paid attention to what I said," Xiao Hongyu said with some dissatisfaction, "Didn't you say that when you come back, you will go to Yaogang College with you to hold a concert for the students?" You also said that you want to influence and educate everyone and emancipate everyone's minds! Forgot about it so quickly? ”

"Hey! You can decide this when you have time! What is there to forget, you see that you say it as soon as you say it. What a resentful woman! Zhang Zhimu said.

"Huh! You're the resentful woman. Little Hongyu smiled and said, "This matter is decided." I'll schedule it right away. Now we have several colleges in Yaogang, and the students are much more active. How much better is that than those students were a few years ago? ”

Zhang Zhimu knows that with the military strength and economic strength of Yaogang now, no one can stop the unification of the world, but the biggest problem now is that the people's thinking is still at the level of loyalty to the emperor, and it is very difficult to make everyone have a sense of democracy. It is necessary to activate everyone's minds and slowly let everyone have a sense of participation in the world's major events, so that it is possible to have any sense of democracy.

As soon as he arrived at the office the next day, Zhang Zhimu asked Yang Qinglian to make an appointment with Yang Chang and Editor-in-Chief Fan respectively.

After Yangchang came, Zhang Zhimu first asked: "How is your character terminal, is there any progress?" ”

"This thing is so hard! Everyone is still working hard, and there is some progress. Yang Chang said, "I think even if it is made out of size, it will not be small." We can already integrate hundreds of transistors on a silicon wafer, but to build character terminals, the circuit board still needs to be very large. But now we've got a picture tube with a lot of screens. The keyboard has also been improved according to your suggestions, so that the feel has improved a lot. ”

"With the character terminal, it will be very helpful for us to continue to develop computers in the future." Zhang Zhimu said, "But you people can't all do this thing. I've got a new assignment for you today. ”

"Good! Say it! ”

"Li Wei proposed to me that it would be better to have a fuse for a cannonball that could be detonated in the air. In fact, it is a kind of proximity fuse, which can make the shell explode about ten meters above the ground, which can greatly increase the lethality of the shell. It has a great intimidating effect on the hearts of the opponents. Your task is to develop such a fuse. Zhang Zhimu said.

"The last time Li Wei came to me, he asked us to help them solve the problem of the exit speed of the shells. I've got someone to do it for them, and it's not that hard. On that occasion, he also talked about the proximity fuse. However, we still don't have an idea to solve this problem. Yang Chang said.

"It's not surprising." Zhang Zhimu asked again, "Is the Kepler effect in physics class still due to impressions?" ”

"The Kepler effect? Of course there is an impression. Yang Chang said.

"If we put a radio transmitter on the shell, when the shell is close to the ground or any other target, will the reflected radio waves have a Kepler effect?" Zhang Zhimu reminded Yangchang.

"Yes! The frequency of the reflected radio waves increases, and the frequency shifts occurs, which is known as the Kepler effect. Yang Chang said.

"And the closer we get to the ground, the more obvious the Kepler effect is," Zhang Zhimu further added, "If we receive this reflected wave and the local oscillator to generate a self-difference signal, filter out this frequency difference signal, amplify it and then integrate it, when this signal is greater than a threshold we set, trigger the fuze to detonate the shell, can we make a proximity fuze?" ”

"Hmmm! That's what you're talking about. Yang Chang said: "But what frequency to use, how to transmit and receive a lot of work. ”

"I'll give you some advice. You can transmit at a frequency of 180 trillion to 200 megabytes, and the entire warhead can be used as a transmitting antenna. The fuse should be able to withstand the high-intensity impact of the projectile and rotate at high speed. In this way, I recommend that the circuit be fixed with silicone. But the weight should not be too heavy, and the volume should not be too large. ”

"We haven't used the frequency of more than 100 megabytes yet, we need to go back and try it." Yangchang said.

"Yangchang's artillery shell velocity measuring device, you all know the principle, right?" Zhang Zhimu asked again.

"That's fine. The higher the frequency of our oscillators, the more accurate the time we can count and the more accurate the velocity of the shells will be. Yang Chang said.

"You're using a cannonball to pass through two coils, signaling to turn on and stop pulse counting. Have you ever thought about using a battery, the pulse wave is transmitted forward, and then this signal is received, and the time between the emitted electromagnetic wave pulse and the electromagnetic wave pulse is received, and this time is multiplied by the speed of light, whether it is possible to measure the distance of the object in front. Zhang Zhimu asked Yangchang.

"Yes! The principle should be the same. Yang Chang said.

"Also, if we send out a sound pulse in the water and then receive the reflected wave, can we also measure the time and measure the distance?" Zhang Zhimu asked again.

"Oops! Mr. Zhang, both of these things you mentioned are very useful. "Yangchang is smart.

"That's right! In the future, if our warships use this thing to measure the distance between the enemy ship and us, the accuracy will be much higher than that of optical ranging. In addition, the battery wave is not affected by rain, fog and night, and can even detect the opponent before the enemy, which is very useful militarily. In the future, all ships will use this thing, which can effectively avoid collisions and avoid obstacles in advance. The underwater detection thing I'm talking about, we can call it sonar. To put them under the boat, we can detect the distance to the bottom of the river, which is the depth, and we can also use it to measure the reef. Where we couldn't detect before, it's much easier for us. In the future, we will use it to measure the underwater depth of all waterways. Are you saying it's too useful? ”

"It's really too big!" "We are now in a position to study these things." When I got back, I split up into two groups and worked on these two things. ”

"Also, what happened to the electronic clock I asked you to develop?" Zhang Zhimu asked again.

"We have developed a stable frequency source of 1,000 hertz through frequency division, and used it to drive the pendulum, and the clock has been made and accurate. It's just that the crystal oscillator can't be fully compensated by the temperature, and the accuracy is affected by the temperature. In addition, it is difficult to adjust the accuracy to a certain extent. Yang Chang said.

"You must break away from the shackles of the original mechanical clock, and you can directly develop a stepper motor and drive the stepper directly with pulse signals. In addition, you can also use the digital tube to display it directly. Also, the clock that you use as a reference source should be placed in the basement in a constant temperature and humidity environment. The oscillation accuracy of your crystal oscillator can be adjusted in a stupid way. This method is very practical though. Zhang Zhimu said.

"Huh! What else does Mr. Zhang have to do stupidly? Zhang Zhimu's words made Yangchang laugh too.

"That's right, when you debug the clock to the point where the clock is about to come, twist two very thin strands of enameled wire together, disconnect the two ends, and gently weld them to both ends of the crystal oscillator. At this time, observe that the clock must be much slower, so you use scissors to cut off a section of the enameled wire, and then cut it if it is still slow, until the last little bit. You'll be able to tune your electronic clock with a very high degree of precision. ”

Zhang Zhimu's method has made many people before. When I first graduated, it was not easy for people to have an electronic watch, and if the watch was slow and fast, it was not easy to repair. Because the watchmakers outside can't fix it. Zhang Zhimu used this method to help many people. In fact, this reason is very simple, soldering two strands of enameled wire twisted together, that is, the capacitance is increased at both ends of the crystal oscillator, the capacitance increases, the oscillation frequency is of course reduced, and the clock slows down. If it is much slower, just cut a section of enameled wire, that is, reduce the capacitance a little, and this reduction in capacity is very small, so the accuracy of the adjustment is also very high. If the basics are solid, there are many things that are not mysterious.

"Okay! I'll tell you how to do it when I get back. Yangchang said: "By the way, I have another good news to tell you. The maximum current of our diodes can already be three amperes. It is possible to work for a long time. ”

"Great, diodes will be available for rectification in the future. Diodes can also be used in parallel. Zhang Zhimu said, "High-power, high-frequency transistors should also be developed more vigorously." However, in the future, higher frequency oscillations will need to be used, such as frequencies exceeding 300 megabytes, that is, when the wavelength is less than one meter. We need to take a special approach. I'll tell you about magnetrons and klystron later. The higher the frequency, the better the directivity. ”

"Okay, I also found that when the frequency is getting higher and higher, the distribution parameters and device factors are very important." Yang Chang said, "I think that the more we study now, the more problems we feel need to be solved. ”

"Huh! This is normal. Zhang Zhimu said, "Our understanding of the world is like the circle we draw, the bigger the circle, the greater the unknown on the periphery." ”

"There is another matter, Mr. Zhang, we want to move the production factories to the periphery of the kiln. Radio. If the scale of radio and telephone production is expanded, the current space will simply not be enough. I want to build a research and experiment base in the current place, and I also want to build a few buildings, do you think this will work? Yang Chang seems to have an idea.

"Of course, not only will your production plants, bases and buildings be built, but your electronics enrollment will be expanded next year. Don't look at the fact that you still have enough people, it won't be long before there will be enough people. Of course, Zhang Zhimu supports Yang Chang and them, and Zhang Zhimu knows that Yang Chang's so-called ambition is still too far from what he expected, but things have to come slowly.

"Also, how's your programmized machine?" Zhang Zhimu very much wanted Yang Chang to develop their program control function as soon as possible.

"There are still problems, I don't think it will work this year. But it will definitely work before the spring of next year, we want to expose all the problems that can be found in the laboratory, and then say, that thing is used, it involves too wide, and it will be difficult to deal with problems again. I'd like to try a small area first, can you? Yang Chang still seems to be very cautious.

"Of course it should be." Zhang Zhimu said, "But this requires a lot of dial-up calls, are you prepared?" ”

"We are already producing dial-up telephones, and I want to replace those rock-knob phones for remote areas first, and it will take a process to replace all program-controlled dial-up phones. If you're new to the phone, let's use the old-fashioned phone first! Yang Chang thought very thoroughly.

In the afternoon, Zhang Zhimu invited Editor-in-Chief Fan over again and had an in-depth conversation with Editor-in-Chief Fan.

After Editor-in-Chief Fan introduced the work during this period, Zhang Zhimu affirmed their work. However, Zhang Zhimu changed his words and said: "Editor-in-chief Fan, I know that you were convicted of going to the smelting plant in the past because you were willing to speak up and criticize the times and offended the high-ranking officials of the imperial court, is this true?" ”

"That's right!" Editor-in-Chief Fan didn't know why Zhang Zhimu asked about this, and looked up at Zhang Zhimu.

Zhang Zhimu said: "Editor-in-Chief Fan, you started from "Yaogang Weekly", and now you have "Yaogang Daily" and Yaogang Radio, I want to say that you have completed the transformation from a court official to a media person. But I don't think you should lose your outspoken personality. No matter what kind of society, there needs to be someone who calmly observes and makes an objective evaluation. This is the responsibility of media people. Our media now have the role of propagandizing our ideas. But I would prefer that our media take responsibility for monitoring our officials at all levels. Supervision by public opinion is indispensable to the perfection of our work. In the future, the actions of our officials and governments at all levels must be supervised by the people as well as by the media. In this way, their rights can be guaranteed to be carried out in the sun. You media personnel must also continue to guide the people to care about the major affairs of the country and local governments. Only when the people have the consciousness of participating in and discussing politics can our future society realize democracy. In the future, your work should be more inclined to this aspect. ”

"Mr. Zhang, do we really want to build a society in the future that democratically elects officials at all levels and the emperor as you said?" Editor-in-chief Fan asked.

"Yes, I can tell you clearly today that this is what we are striving for." Zhang Zhimu said, "After we seize the national power, when the conditions are ripe, we will nationalize the army." No individual or organization is allowed to have armed forces, and everyone can compete to be the leader, and whoever is the leader can command the army. But it is also the use of the army when the law allows, and against the law, the army can also disobey his command. ”

"As you said, everyone is equal, both men and women are one vote, and equal elections are right?" Editor-in-chief Fan asked.

"Yes!" Zhang Zhimu replied.

"Mr. Zhang, do you think people can really be equal?" Editor-in-chief Fan is a little more serious.

"When I say equality, everyone is equal before the law." Zhang Zhimu said, "But absolute and complete equality cannot be achieved." We have people who have strong ability to create a lot of wealth for the society and have a high income, so you should let him eat pickles like a farmer, can you? Our society must ensure that all people are completely equal in their basic rights and personality. Of course, we also need to try to reduce the gap between the rich and the poor, but this is another issue. Even the equality of basic rights requires us to do a lot of work, and first of all, we must let everyone have the desire and awareness of peace. I suggest that you try to find ways to engage people in the discussion of something. For example, the last debate you held was a good form for everyone to get used to expressing their opinions. Educating the public is a very important job and a responsibility for you. ”

"Mr. Zhang, we are our own media after all, is it inappropriate for us to supervise our own officials and the government?" Editor-in-Chief Fan was a little worried.

"Using your news network to search for information is not a matter of principle, you should report boldly." Zhang Zhimu said, "I also know that we have not yet completed the reunification of the country, and there are still many struggles that need to be done with some targeted propaganda. But if you find a serious problem that is not suitable for public reporting, you can report it first. After we have fully taken power, we should encourage the news media to report freely in order to achieve complete freedom of the press, as long as it does not spread rumors and slander, make personal attacks, or violate the law. ”

"Hopefully this day will come soon." Editor-in-chief Fan said excitedly.

"This day will definitely come!" Zhang Zhimu said.

"Mr. Zhang, I am willing to work with you for this goal!" Editor-in-chief Fan said.

"I told you today, but I didn't treat you as an outsider." Zhang Zhimu said, "The great goal requires thousands of people to work together with us. Your responsibilities are so great that they can even determine the course of our goals. Needless to say, we now have no difficulty in seizing the world by force. But when it comes to elections, I often say that our people don't have this awareness, and they sell their votes for a bowl of noodles. This is the greatest obstacle to our democracy. ”

"Mr. Zhang, when you say this, my heart feels like a crack." Editor-in-chief Fan said, "When I go back, I know where my focus is. ”

As soon as Editor-in-Chief Fan left, Meng Si'er came in, which made Zhang Zhimu's eyes light up, "Meng Si'er, you really fight for my face!" didn't let me down, and made one miracle after another. When your sister-in-law mentions you at home, she says she has vision. Ha ha! ”

"Alas! I know better what I, Meng Si'er, am I like, I met you and became like a person. My parents often tell me that you can not be filial to them, but you must not forget the kindness of you and your sister-in-law! "Now Meng Si'er has already changed his title to Huang Yukun from the eldest and youngest grandmother of the Qin family to sister-in-law.

"Sit down and talk about the miracles you have created in Huashan!" Zhang Zhimu gave Meng Si'er a glass of water and couldn't help but say.

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Mt. Fuji erupted, Japan was earthquaked. --Progress of "Memories of the Southern Song Dynasty".