The unparalleled talent of the country started from Harbin Institute of Technology

Chapter 85, Dual-Axis Gyro Drift Test Bench Prototype Project, Entrance Exam is Coming
Harbin Institute of Technology, Department of Computational Mathematics, Mathematics Class 1.

There are a total of twenty-eight people in the class. Except for four female students, the other twenty-four are male students.

To be honest, it was unexpected that there were four girls in the Department of Computational Mathematics, and among them, Jian Xianglan and Xue Xiaoling scored 115 and 112 points respectively in mathematics.

In other words, both of them have studied advanced mathematics, and Xue Xiaoling is also very talented in advanced mathematics.

But the highest score in all mathematics subjects still belonged to Wang Duoyu, because his score in mathematics alone was 120 points, with full marks for the main question and two additional questions.

At the beginning of the school year, the whole class was still in the process of getting to know each other. The most influential figures among them were undoubtedly Wang Duoyu and Jian Xianglan, because the former was tall and handsome, while the latter had a pretty face but an unmatched temperament.

Of course, many people in the class are already married, so even if they have some thoughts in their mind, they dare not show them now.

There are not many female students in the Department of Computational Mathematics, but there are still quite a few in other departments. If you work hard, you might really be able to find a partner in school.

Less than two days after school started, Wu Congxin called Wang Duoyu to his office and said that the foreign exchange had been applied for and someone had been arranged to purchase it. It was estimated that it would be available for purchase by the middle of this month.

"Okay, thank you Director Wu."

Wang Duoyu's thanks were very sincere.

Wu Congqin chatted with him about some family matters and asked about his personal life and studies. He left the office half an hour later.

In the library, Wang Duoyu went to the third floor, found an empty seat, sat down and started working.

Not knowing how much time had passed, Wang Duoyu rubbed his tired eyes and closed them to rest.

When I opened my eyes, a gentle voice came from the other side, "Hello, teacher, can I ask you a math question?"

Looking up, I saw an ordinary girl with two big braids, with a flattering and nervous smile, handing me a homework book. The questions on the book were about calculation problems in mathematics and physics.

Tang Fengzhen is a student who entered the Department of Physics at Harbin Institute of Technology in February this year. Since she passed the entrance examination, she was directly brought by her teacher to the TPCT-1 dual-axis gyroscope drift test bench prototype project.

"This question is simple, just look at it."

Wang Duoyu was not a very good teacher, but the other party's attitude was very sincere, so he did not refuse him.

It just so happened that he had just been calculating for most of the day and was very tired, so it would be good to change his mind.

The dual-axis gyro drift test turntable is a key test equipment for experimenting and evaluating multi-axis inertial navigation systems, various single-degree-of-freedom and dual-degree-of-freedom gyros, and accelerometers.

The Sixth Ministry of Machine Building issued an order in 1971, asking Harbin Institute of Technology, the State-owned No. 441 Factory, the No. 63 Institute and the No. 54 Institute to jointly develop the project, and let Harbin Institute of Technology take the lead in the overall technical work. The importance of this project is self-evident.

The fact that Tang Fengzhen was able to participate in this shows that her professional knowledge is not bad, but she may be a little lacking in mathematics.

The multi-axis inertial navigation system is based on Newton's laws of mechanics. Its main functions include providing high-precision positioning information, fast response and strong reliability.

It mainly determines the position information, direction information and angle information of the target object by measuring its motion state and changes, such as posture, speed and angular velocity, so as to provide high-precision positioning services.

Multi-axis inertial navigation systems are widely used in aerospace, ships, automobiles and trains, but they are currently only used in aerospace and other defense fields and are very rare in the civilian field.

"T is the modulation drift of the monitoring gyro. Since the monitoring gyro is a permanent magnet motor gyro, when its angular momentum changes, the interference torque changes very little." "Look, in addition to this method, we can also use external information compensation to correct inertial navigation errors and compensate for navigation gyro drift."

Wang Duoyu provided another algorithm, which made Tang Fengzhen dumbfounded.

Wang Duoyu not only solved the difficult problem that had troubled him for a long time, but also provided a second solution?
"Okay, teacher, let me take a look."

Tang Fengzhen took the homework book. Her mind was completely bewildered. She had only picked out one problem, and it only involved mathematical calculations. She hadn't expected Wang Duoyu to already know what project she was involved in. So, there must be something hidden in HIT!!!

Just when she came to her senses and wanted to continue asking questions, Wang Duoyu had already fallen into his own world, writing furiously. Mathematical formulas appeared on the manuscript paper, and she felt dizzy reading them.

“This teacher is amazing!”

It was already half past twelve in the afternoon, his stomach was rumbling, and Wang Duoyu finally put down his pen.

The seat opposite him was empty, but he didn't feel lost. The other person called him teacher, and he helped the other person answer his questions, which was reasonable.

Although the other party just left without saying hello or thank you, which seemed impolite, it would be really impolite if the other party had disturbed him just now.

After going downstairs and out of the library, Wang Duoyu went to the school gate to pick up the mail. Sure enough, the letters from Zhu Ling and Liu Xiaoli had arrived.

After taking the letter and having lunch in the cafeteria, Wang Duoyu returned to dormitory 303.

In the dormitory, only Lou Jianguo and Yu Xinyao were reading. When they saw him come in, they smiled and asked him if he had been to the library again.

"Tomorrow is Monday. Aren't you afraid you won't pass the entrance exam?"

"Jianguo, stop worrying about him. Duoyu scored 496 in the college entrance exam. No matter what subject, he's definitely number one in the class. How dare you let him worry about whether he'll pass or not?"

Upon hearing this, Wang Duoyu could only smile helplessly. He didn't know whether Yu Xinyao was praising him or criticizing him.

When school started, the school notified that all students needed to take an entrance exam, which was equivalent to a baseline test.

The college entrance examination is a national unified examination paper. Although there are additional questions, it still cannot reflect the students' true level.

For example, Zhu Hanting was admitted to Suzhou No. 3 Middle School in 1961. This school, Suzhou No. 1 Middle School and the Affiliated Middle School of Jinling Normal University became three pilot middle schools to carry out the five-year integrated middle school reform and practice the teacher's educational idea of ​​"shortening the school system and revolutionizing education."

When he graduated from high school in 1966, his first choice was Tsinghua University, and based on his mock exam scores at the time, he had a high probability of being admitted to Tsinghua.

For example, Yuan Jigang and Lou Jianguo, although the former is from Beijing, his college entrance examination score is 346, and the latter is from a rural area in Sichuan and his college entrance examination score is 382, ​​which is about the same.

Yuan Jigang and Lou Jianguo cannot be compared with Zhu Hanting at all. The former two have poor foundations, while the latter has an absolutely solid foundation.

Therefore, the entrance examination is to test the basics, so as to determine which students need to supplement their basic knowledge and which can directly learn professional knowledge.

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(End of this chapter)