Chapter 557 (2/2)

Therefore, the orbit change function requirements of the detector must be higher, otherwise Lei Tiantang can throw the detector over there every other time!

”Good! Track change test begins!

Main thruster fire! ...

auxiliary thruster ignition! ...

spare thruster ignition... ”With Kuafu's reminder in the headset, the two detectors, which are moving at a high speed, started various orbit changes.

In order to ensure that the orbit change function of all detectors can meet the complex mission requirements, the orbit change thrusters of these detectors have two systems. One is composed of the main thruster and the auxiliary thruster. This system is the ion thruster system, which is not only the acceleration system of the satellite, but also their orbit change system.

Ion thruster, also known as ion engine, is a kind of space electric propulsion technology. It is characterized by low thrust and high specific impulse. It is widely used in space propulsion, such as spacecraft attitude control, position keeping, orbit maneuver and interstellar flight.

The principle is to ionize the gaseous working medium first, and then accelerate the ion ejection under the action of strong electric field, and then push the satellite to conduct attitude adjustment or orbit transfer tasks through the reaction force. Ion thruster has the characteristics of high specific impulse, high efficiency and low thrust.

Compared with the traditional chemical propulsion, ion thruster requires less working fluid mass, which is the most suitable for long-distance navigation among the practical propulsion technologies. This feature is the reason why Kuafu and deep space laboratory regard it as the main propulsion system.

But this propulsion system is not without disadvantages. Of course, the main drawback is that their thrust is not high. Even if the most advanced ion thrusters are used in the deep space laboratory, their thrust is not high.The advantage of such a propulsion system is that it can accelerate the detector continuously for a long time, and it needs to carry little fuel. It can also react in advance for orbit change operation if it is prepared.

However, its disadvantage is that the ability to react instantaneously is not enough. What is the situation in the cosmic environment of the small black hole and the star system in the mission area is still unknown, but it must be very complicated. In such a complex cosmic environment, all kinds of accidents may occur at any time.

There will be a backup system to deal with these situations.

Therefore, these detectors are also equipped with a set of chemical fuel propulsion system. Using the high explosive nature of chemical fuel propulsion system, these detectors can be more calm in the face of these emergencies, and the service life of the detector can be extended.

After all, it takes a long time to explore the universe to obtain more abundant data. If a probe is launched and it works for a few days, how much useful data can be obtained?

In particular, Lei Tiantang also hopes that those space telescopes in this batch of detectors can detect the situation of the star region where the small black hole is located, and then through the star map to compare whether its position can coincide with the star map detected on earth!

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