NOVEL NEXT Chapter 547
Chapter 553
“Chief Engineer Lu, unless what?”
Several people saw that Lu Yu suddenly stopped speaking, thinking that they didn’t hear what Lu Yu was saying clearly, and quickly asked.
“Nothing.”
“In this way, stop the work on your side for a while.”
“I’ll help you run the compatibility test data again, and recalculate how much error will be caused by the compatibility of the card for you.”
“This will make it easier to proceed to the next step.”
Lu Yu said casually.
“This… Don’t need Chief Engineer Lu, you personally run the data, right? Although the data calculated by our simulation test has errors, it is difficult to avoid the reasons limited by the equipment.
“If you think there may be a problem with the data, I’ll just ask Xiao Li to run the data again.”
“There’s no need to bother you to go in person.”
A researcher said slowly.
Running data is a job that, in theory, is similar to anyone, and naturally there is no need to delay Lu Yu’s precious time.
“No, it’s still me who personally distinguishes.”
Lu Yu smiled and said, “You guys take a break here first, and then think about whether there is any better plan by the way.”
“I’ll go and give you a run.”
Saying that, Lu Yu left the scene directly with the data report, leaving only a few people to look at each other in confusion, some confused about the situation.
“That… Let’s just follow what Chief Engineer Lu said, rest first, right? ”
Hmm.”
Although they had doubts and couldn’t understand why they ran a trip to data, Lu Yu actually wanted to go in person.
However, the order has already been given, and it is difficult for everyone to say anything.
Lu Yu, who —
took the data, did not go directly to the simulation device to measure the data, but came to the conference room alone.
“The last time I tried it out, it worked really well.”
“I just don’t know this time… Can it surprise me.
Lu Yu said to himself.
Last time, he used the data in his mind to calculate that MEMS systems, that is, micro-motor systems, can indeed bring an improvement to microsatellite network systems.
And this time… He wanted to try to see if he could directly calculate the specific data of compatibility problems through simulation experiments!
If simulation test software is used, the effect that can be achieved is quite limited because of insufficient accuracy.
But… Change to this reward of the system in your head, then it may not be.
According to the principle that the system produces, it must be a fine product.
Even if the data that runs out may still have errors, it will definitely be much better than the simulation test system!
At this thought, Lu Yu did not hesitate anymore.
After eating a few chocolates and energy bars to make sure his body didn’t have problems with energy supply, he started the simulation experiment!
First of all, the first step is naturally to preset the goal of the experiment.
“Purpose of the experiment: To explore the compatibility problem of MEMS system introduced into microsatellite network and propose an effective solution.”
Lu Yu once again poured the cognition of microsatellite networks in his mind into the intracranial high-speed simulation.
“If the subject is a microsatellite using the latest MEMS system, let’s say MS-2023-01, weighs 10 kg, and measures 30 cm× 30 cm × 30 cm.”
“Functions are communication, navigation, remote sensing, etc. It is assumed that the microsatellite will be launched into a low orbit 600 kilometers from Mars, joining the network of microsatellites in the Zhurong-2 project.
“Experimental method: A combination of simulation and actual measurement is used to test and evaluate the compatibility of microsatellite MEMS systems.”
“The first step: on the ground, using professional software and hardware platforms, the MEMS system of microsatellites is simulated and tested.”
“Simulate various environmental conditions and interference factors that may be encountered in microsatellite networks, such as temperature changes, electromagnetic interference, radiation exposure, etc., and record the output data and errors of the MEMS system…”
Lu Yu’s mind began to run rapidly, just as he wanted to further calculate deeper data.
A voice suddenly sounded in his ears.
“Chief Engineer Lu?!”
Lu Yu was so frightened that he immediately opened his eyes: “What’s wrong?” ”
When people are concentrating on something, it is difficult to detect changes in the external environment.
The same is true for the Lu language.
He was just calculating the data wholeheartedly, but he was suddenly interrupted by someone, quite a bit of the four words “going crazy” in Xiuxian Xiu’s novel.
It’s scary!
OK… He is not cultivating immortals, but is conducting scientific research work in a serious way, at least he will not be frightened by this moment!
“Chief Engineer Lu, your body… Isn’t it a little uncomfortable?
A middle-aged researcher said cautiously:
“I have a piece of information left here, I wanted to come and get it, but it felt strange to see you sitting on a chair and looking at your state.”
“Are you sick?”
He looked at Lu Yu like that, as if he was not sleeping, his eyes closed all of a sudden, and he opened slightly.
The brows are sometimes furrowed, sometimes stretched….
It seems, it’s so strange!
“Oh, nothing.”
Lu Yu wiped the cold sweat on his head and said with a smile: “I’m just thinking about a set of data, you take yours.”
“Oh, good.”
The researcher pulled out a stack of papers and left the conference room.
Looking at the cold sweat marks on Lu Yu’s forehead, he also muttered a little in his heart….
“Is this really all right?”
“Chief Engineer Lu, a workaholic like him, if something happens to his real body, he probably won’t tell me.”
“Alas, it’s great.”
He sighed and secretly thought in his heart, “Let’s tell Elder Zhong about this.” The
researcher left the conference room with the documents all the way.
After sending this guy away, Lu Yu finally took some time to regain his brain.
The simulation experiment continued, and one research device after another that did not exist was constantly reproduced in Lu Yu’s imagination.
“All in all, in order to simulate temperature changes, a temperature controller is used, preferably between 0°C and 50°C, so that the microsatellite can heat or cool it.”
“We change the temperature every 5°C and measure the output data of the MEMS system.
“If electromagnetic interference needs to be simulated, an electromagnetic shielding box must be used, which can arbitrarily control the electromagnetic field strength between 0 and 1000 gauss, and then irradiate.”
“If the electromagnetic field strength is changed every 100 gauss, and the output data of the MEMS system is measured.”
“In order to simulate radiation exposure, a radiation source is needed to protect the microsatellite, first by constantly changing the radiation dose, and finally by measuring the output data of the MEMS system.”
After Lu Yu roughly reappeared in his mind, a new idea suddenly came to his mind.
“Or directly in the air, using professional instruments and equipment, to test microsatellites?”
“Directly monitor various environmental conditions and interference factors actually encountered in microsatellite networks, such as temperature changes, electromagnetic interference, radiation exposure, etc., and record the output data and error of MEMS systems, the effect may be better!”
He directly compared this idea with the simulation test results in hand.
“To monitor temperature changes, we installed a temperature sensor on the microsatellite, which can measure the temperature at which the microsatellite is located in real time and transmit data to the ground. Temperature data is recorded every 5 minutes and compared with simulation test results.
Lu
Yu roughly compared the results of simulation tests and simulation tests, and analyzed the compatibility problems and causes of MEMS systems.
When the data comes out, it’s easier to think about specific solutions.
Lu Yu directly took the documents, came to the actual measurement console, covered his ears and stole the bell, and returned to the research site.
The reason why he made one calculation in his mind and then made another calculation through the test program was also extremely simple.
It’s not that he can’t trust the system’s capabilities, he just wants to leave a test record so that others think that the test results they just got are derived from the simulation test simulation in the laboratory.
If there is no trace left.
What is the source of this data… It’s a little scary.
After Lu Yu pretended, he returned to the research room.
Everyone also focused their eyes
on Lu Yu’s body: “Chief Engineer Lu, you…” Looking
at the faint smile on Lu Yu’s face, they all guessed that Lu Yu’s side might be the result!
For a moment, the expressions on everyone’s faces became quite excited!
“Let’s tell you the good news first.”
“The error does exist because of temperature effects and electromagnetic interference.”
“But I just tried again, directly removed the error data for a preliminary analysis, and then thought of some improvements and optimization options.”
“Let’s listen first, shall we?”
Lu Yu smiled lightly.
“Chief Engineer Lu, you said, we must listen carefully!”
Everyone’s expressions became serious, and they sat in their seats and listened very intently!
“First of all, it’s about the temperature effect.”
“We found that the output data of the MEMS system drifts and fluctuates significantly with temperature, which is caused by changes in physical properties such as thermal expansion coefficient and thermal conductivity of MEMS materials.”
“This is also consistent with the idea I proposed before.”
Lu Yu said slowly.
“Well, you told us that.”
The researchers nodded.
Lu Yu had already explained this question to them before, so they were not surprised.
“And in order to solve this problem, there are actually many solutions that can be used.”
“The first is to use MEMS materials that are more suitable for the microsatellite network environment, and use silicon-based, metal-based, and ceramics-based alloy materials to combine them.”
“These materials form alloys with lower coefficients of thermal expansion and higher thermal conductivity, which can reduce the deformation and stress of MEMS devices during temperature changes.”
“The second is to use a reasonable MEMS structural design, such as damping design and balance design.”
“The damping design also has a balanced design
, which can reduce the temperature drift, vibration sensitivity, and nonlinear error of the MEMS device during temperature changes to a certain extent…” “The third is to use more effective MEMS error compensation algorithms and calibration methods, such as adaptive algorithms, neural networks, fuzzy logic, etc., which can eliminate or suppress the bias error of the MEMS system during temperature changes.”
“Do you have any questions?”
Lu Yu asked.
“The problem is nothing, it is Chief Engineer Lu, I don’t know much about electromagnetic interference, you will talk about it later…”
One researcher had an apologetic smile on his face.
“It’s okay, the electromagnetic interference piece is much simpler.”
Lu Yu chuckled:
“The output data of the MEMS system will have obvious deviations and noise as the electromagnetic field strength changes.”
“And this is caused by the change in resistivity of MEMS devices.”
“Settle it… It’s even simpler!
“We can directly use more effective MEMS error compensation algorithms to eliminate or suppress the zero bias error, scale factor error, and cross-coupling error of the MEMS system when the electromagnetic field changes!”
Lu
Yu explained to everyone in the simplest way how to solve the electromagnetic interference problem, which is indeed much simpler than the previous problem.
“Does everyone understand?”
Lu Yu asked with a smile.
“Understood, Chief Engineer Lu!”
”
Let’s face the electromagnetic interference problem next, mainly with the algorithm problem to solve it, right?”
Several researchers were a little unsure and asked again.
“That’s right.”
Lu Yu nodded, just wanted to say something, but at this moment, the figure of the assistant appeared next to Lu Yu again:
“Sorry, Chief Engineer Lu.”
“Interrupt.”
“Director Lin, he’s looking for you again. He asked me to call you to the office to talk about something. ”
Again?” Lu Yu, who just wanted to further command, was directly stunned in place:
“No, this is the third trip, right?”
“Is there any important information again? Otherwise, you won’t come to me again at this time, right?
Lu Yu was really a little helpless, and he thought in his heart, what was the reason behind it.
It has only been a few hours since the last time Director Lin “summoned” him. In just half a day, he had already held two small meetings with Director Lin, and he was about to go to the third meeting.
If so… How can the research mission continue?
“Forget it, you go and talk to Director Lin, I’ll be there right away.”
Lu Yu instructed his assistant, then turned his head to look at one of his subordinates, and explained: ”
Director Lin may need me to go there, so I may not be able to guide your work for the time being.”
“All in all, you guys do it step by step.”
“At least solve the problem at the material and structural foundation level first, as for the electromagnetic interference problem or other troubles, let’s talk about it when I get back, understand?”
“…”