Chapter 742

He is also really curious. To know that he left most of the work in the laboratory to Kuafu, and extended this good thing to all the laboratories of the whole company. The most important contribution of scientific researchers is to use their brains. Now most of the repetitive experiments and long-term observation experiments that need hands-on and are very boring can be handed over to the origin.

With the smooth delivery of the second generation robot specially designed for the laboratory in the robot laboratory, few people in the company's laboratory need to stay at night to work overtime, because most of the work robots can be completed.

"Oh, that's the boss. Today's deep space laboratory needs a whole system experiment. A new ion engine has performed very well, so everyone is looking forward to its final test results. All the test results will be available around 7:00 p.m., so we think it's better to wait.

Anyway, it's not too late to go home after reading the data at more than 7 o'clock. After all, this engine is related to our company's future deep space exploration plan. We all hope to confirm its performance earlier, instead of waiting for the origin to send us a dry test data after going home! " Fang huiran smiles and explains why they stayed to work overtime.

"I have to go and have a look at this. Let's go there together." Hearing this, Lei Tiantang's interest also came.

We should know that the "firefly 1" and "firefly 2" Mars orbital exploration satellites launched by the infinite gravitation group have been launched for several months, but they have not yet flown to Mars. Why?

It is not that the acceleration time of the ion engine propulsion system of the satellite is too long, but the rocket load of the infinite gravitation group is large, so the satellite can carry more fuel and several more ion engines, and the speed is fast.

Generally, the satellites and landing probes sent to Mars will not boost and accelerate in flight, but choose to use the gravitational catapult effect of the planet to accelerate, and the speed can be imagined to be slow.

Deep space exploration is an important application field of spacecraft, and propulsion technology is an important factor restricting spacecraft deep space exploration ability. Deep space exploration mission leads to the development of various propulsion technologies, and the progress of propulsion technology also provides more choices for the expansion of deep space exploration missions.

Due to the diversity of deep space exploration in object selection, detection methods and other aspects, the requirements for propulsion system are also diversified.

From the perspective of detection objects, the detection range includes all kinds of planets, satellites, comets and other materials and phenomena within the solar system. Outside the solar system, there is a vast space.

From the perspective of detection methods, the common methods include surround inspection, crossing detection, braking landing, sampling return, etc. different detection methods have different requirements for spacecraft and propulsion system.

Despite the diversity of deep space exploration missions, a summary of these missions can extract the common requirements for spacecraft propulsion system.

First of all, the propulsion system has higher requirements. The deep space exploration mission needs to get rid of the gravity of all kinds of stars, which requires the detector to have a higher speed increment. There are two channels for obtaining the speed increment: one is provided by the inter planetary flight, the other is provided by the propulsion system of the spacecraft.

The former needs to meet many constraints, and often at the cost of more time; the latter requires the propulsion system to have a higher total impulse, in the case of limited launch weight and propellant carrying capacity, the improvement of total impulse can only be achieved by higher specific impulse.

Secondly, the propulsion system should be able to provide appropriate thrust. For the missions that need rapid orbit adjustment, rapid braking, controlled landing on the detection object, or taking off and returning after sampling, the spacecraft is required to provide enough thrust to meet the above-mentioned requirements. The specific thrust required is determined according to the mission characteristics and gravity.

Thirdly, the propulsion system is required to have certain adaptability to energy. In many deep space exploration missions, the distance between spacecraft and the sun will change greatly in the whole detection cycle. For propulsion systems relying on external energy, especially solar electric propulsion systems, it is necessary to have the ability to adapt to energy changes, so that the engine can work normally in different power ranges.

In order to meet the above requirements, the propulsion system of deep space exploration spacecraft is often composed of many types. In different working stages, different propulsion technologies are used to make it play the greatest advantage.

However, if the performance of the ion engine of the company can be greatly improved, it will bring better changes to the company's future solar system exploration plan. So Lei Tiantang wanted to have a look at Fang huiran's talk about this matter.

"OK, but what about Xiaoqing?" Fang huiran looked at several dogs who just stopped to say a few words and then asked with a smile.

"Anyway, it's not urgent. Let's go shopping together. You can just stop eating and give them to the security personnel at the laboratory. I'll take them back when I leave." Lei Tiantang pulled the straight rope pulled from each angle on his hand and laughed.

Along the way, Lei Tiantang didn't ask about the engine specifically. He didn't see the real object and knew the data. He didn't have an intuitive impression. After chatting for a while, he went to the deep space laboratory. After handing some energetic erha to the security personnel, they went into the dust removal room to remove dust, and then changed into the laboratory's special clothes."Oh, boss, here you are!" Zhang hanxiu was in front of the experimental platform talking to the researcher next to him. When he saw his boss coming, he said hello with a smile.

"Well, I met director Fang outside the canteen. I heard that you were working overtime to test the new ion engine. I just want to come and see the situation and introduce it to me?" Lei Tian Tang said with a smile and a wave.

"Ha ha! It seems that you can't experience this surprise, boss. I plan to wait for the test data to come out, and its performance fully meets the requirements before reporting to you!

You know, for this ion engine, the laboratory has been busy for a long time, all kinds of dissatisfaction, all kinds of modification design, if not for our recent breakthrough in design, we still don't know when we can finish it!

If the performance of this ion engine is tested and meets our design requirements, then we have not launched the Jupiter probe, the Saturn probe, and further probes will reduce the flight time by at least half! "

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