Vol 2 Chapter 567: Test of the detector's ability to change orbit

It's not an exaggeration for Kuafu to say this. With the current detection speed of these two stars, if they are out of Lei Tiantang's control, it can really cause no small harm.
　　
You know, the outer sides of these two detectors are covered by a thick multilayer protective layer, so the overall strength of the detector is very strong. If such a strong object is knocked out at such a high speed, you can know the danger when you think about it. No wonder he has to remind his boss in particular.
　　
"Got it! I'll be careful, but your worries are unnecessary! As long as it is within the scope of my source, there will never be the danger you mentioned. Just test yours!" Lei Tiantang was confident. Said.
　　
If he first gained the ability, he might have problems due to insufficient control proficiency, but now more than three years have passed. After such a long period of training, the control of the domain has become an instinct. , So Kuafu's worry is unnecessary in his view.
　　
　　 Even if it is moving at such a high speed, it will definitely not be a problem, because the two detectors themselves can move at such a high speed under his control.
　　
　　 The importance of the detector's ability to change orbit is of course clear to him, so he also attaches great importance to this test.
　　
　　 The process of autonomously changing the orbit of a satellite during its orbit is called orbit change. Launching various satellites and probes into the earth orbit or other solar system orbits requires orbit change operations.
　　
　　 The orbit of the satellite is elliptical. The way to save fuel for launching rockets is to launch to a large elliptical orbit first. When the satellite is at apogee, the attitude of the satellite will adjust the rocket ignition so that the orbit of the satellite becomes the required height.
　　
　　 The orbit can be changed multiple times, which requires accurate calculation of the time for the satellite to change orbit, which is controlled by ground instructions. Affected by the gravity of the earth, the orbits of man-made satellites, spacecraft, and space stations will drop at a speed of about 100 meters per day.
　　
　　 Such a drop in altitude will affect the normal operation of man-made satellites and spacecraft, including space stations, so they will often need to change their orbits during their orbits.
　　
　　 In addition to avoiding damage from "space junk", the main purpose of the 　　 orbit change is to ensure the longevity of its operation, and these are equally important to the detectors currently tested by Lei Tian Tang.
　　
In the future, most of these probes will also enter the star system on the side of the small black hole, and many probes will also enter the orbits of the planets or asteroids in the star system in order to perform the Long-term detection mission.
　　
　　 This requires that the orbit change function of these detectors will not be a problem, and the orbit change function requirements for these detectors are much higher than those of satellites launched from the earth to the earth orbit.
　　
After all, I don’t know what the environment of the star system over there is. I don’t know the conditions of the planets and asteroids to be detected. If we want to enter their orbits according to the detection mission, we will certainly require more orbital changes for the detector high!
　　
In addition, all kinds of man-made garbage and various small celestial bodies in the orbit of the earth can cause damage to satellites and other detectors. Human beings can master them after a long time of detection and recording, so the satellite will be advanced before being hit. Change the track to avoid being crashed.
　　
The detectors that Lei Tiantang plans to throw to the small black hole do not have this treatment. Although each detector is equipped with high-power detection equipment, even the space junk is detected during the high-speed movement. , The reaction time left by the detector is also very short.
　　
　　 So of course the requirements for the detector's orbital change function are higher, otherwise Lei Tiantang can throw the detector there once in a while!
　　
　　 "That's good! The track change test begins!
　　
　　 The main thruster is ignited!
　　
　　 Auxiliary thruster ignition!
　　
　　Spare thruster ignition
Following Kuafu’s reminder in the headset, the two detectors moving at high speed started various orbital changes.
　　
In order to ensure that the orbit change function of all the detectors can meet the requirements of complex tasks, the orbit change thrusters of these detectors have two sets of systems, one is a system composed of the main thruster and the auxiliary thruster. This system It is the ion thruster system, which is the acceleration system of the satellite as well as 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, orbital maneuvering and interstellar flight, etc. .
　　
　　 The principle is to first ionize the gaseous working medium, and accelerate the ejection of the ions under the action of a strong electric field, and use the reaction force to push the satellite to perform attitude adjustment or orbit transfer tasks. The ion thruster has the characteristics of high specific impulse, high efficiency and low thrust.
　　
Compared with the traditional chemical propulsion method, the ion thruster requires a low quality of working fluid, which is the most suitable for long-distance navigation among the practical propulsion technologies. This feature is that Kuafu and the Deep Space Laboratory regard it as the main The reason for the thruster system.
　　
　　 But this propulsion system is not without shortcomings. The main shortcoming of course is that their thrust is really not high. Even if the deep space laboratory uses the most advanced ion thrusters, 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 the fuel that needs to be carried is very little~EbookFREE.me~ It can also react in advance to perform orbit change operations with preparation.
　　
But its shortcoming is that the instant response ability is not enough. The cosmic environment on the side of the small black hole and the star system in the mission area are still unknown, but it must be very complicated. Under such a complicated cosmic environment, various accidents May appear at any time.
　　
　　 Faced with such a situation, these detectors must have a set of backup thruster systems to deal with these possible situations.
　　
Therefore, these detectors are also equipped with a set of chemical fuel-fueled propulsion systems. Using the high explosive nature of the chemical fuel propulsion system can make these detectors more calm in the face of these emergencies, allowing detection The service life of the device can be extended.
　　
　　 After all, cosmic exploration requires long-term exploration to obtain richer data. If a detector is launched, it will work for a few days and then be scrapped. How much useful data can be obtained?
　　
In particular, Lei Tiantang also hopes that the space telescopes in this batch of detectors can detect the location of the star field where the small black hole is located, and then use the star map to compare whether its location can be compared with the detected stars on the earth. The picture can overlap!