新视野号为什么能飞那么久

如题所述

①首先,美国国家航天局为此痛下血本,2015年7月14日这次行动,就耗资七亿美元,技术上就可以支持长时间能源供给。另外新视野号是人类至今发射过最快速的太空船,开过车的人都知道,车开得越快,越省油。其他的原因是技术保密的,最厉害的黑客都难以破解。公开的消息如下——
新地平线号探测船的动力皆来自一台核能电池,这台发电机利用新地平线号任务logo放射性同位素二氧化钚自然衰变时所释放出来的热,以电热隅形式发电。由于冥王星距离太阳太远,阳光由太阳去到冥王星需要四小时,在冥王星附近能接受的太阳能只及地球千分之一,探测船无法利用太阳能产生充够的能量供活动所需,因此核能电池是唯一的选择。其实,所有外空间探测器都采用相同的设计,包括“卡西尼号”探测船。探测船有一台引擎提供转向动力,用以调节探测船相位,在差不多十年多航行时间之间,可以修正飞向冥王星的轨道。当探测船接近冥王星时,要调校船身以便所有探测仪指向冥王星。当飞越过冥王星之后,又要调校船身以便观察卡戎,待完成探测后,又要再转校船身,使高增益天线指向地球,将收集到的数据送回地球。这个设计是由于预算所限,“新视野”探测船不可以像它的前辈“旅行者”一、二号一样,使用旋转式平台,可以较简单的执行指令,而只能以调节船身相位这个较复杂方法来完成任务。
②关于你的第二个问题,美国这么重要的成果,当然不会用又慢又不安全的普通计算机传输了,用的是很先进的——“新地平线”探测船安装了一只直径2.1米(83英吋)的高增益天线,能够与地球的深空网络保持联系,接收来自地球的指令,以及将收集得到的科学资料输送回去地球。另外安装在高增益天线正上方的是低增益天线,是高增益天线的后备,以备不时之须。高增益天线有两条频带收发讯号,频谱宽阔,上传下载速度高,相比之下,低增益天线只有一条窄频带,效率较低,但是在紧急情况之下,可以顶替高增益天线的工作。我的回答希能帮助您,谢谢。
Firstly, the United States National Aeronautics and Space Administration for pain costly, 2015 July 14, the action, costing $700 million and technology can support the energy supply for a long time. Also new horizons is mankind has launched the fastest spacecraft, drive a car knows, the car was faster, more fuel-efficient. The other reason is that the technology is confidential, the most powerful hackers are difficult to crack. Public information is as follows:
新地平线号探测船的动力皆来自一台核能电池,这台发电机利用新地平线号任务logo放射性同位素二氧化钚自然衰变时所释放出来的热,以电热隅形式发电。由于冥王星距离太阳太远,阳光由太阳去到冥王星需要四小时,在冥王星附近能接受的太阳能只及地球千分之一,探测船无法利用太阳能产生充够的能量供活动所需,因此核能电池是唯一的选择。其实,所有外空间探测器都采用相同的设计,包括“卡西尼号”探测船。探测船有一台引擎提供转向动力,用以调节探测船相位,在差不多十年多航行时间之间,可以修正飞向冥王星的轨道。当探测船接近冥王星时,要调校船身以便所有探测仪指向冥王星。当飞越过冥王星之后,又要调校船身以便观察卡戎,待完成探测后,又要再转校船身,使高增益天线指向地球,将收集到的数据送回地球。这个设计是由于预算所限,“新视野”探测船不可以像它的前辈“旅行者”一、二号一样,使用旋转式平台,可以较简单的执行指令,而只能以调节船身相位这个较复杂方法来完成任务。
New horizons probe ship power from a nuclear battery, the generator using the new horizons mission logo radioactive isotope oxide plutonium natural decay of the released heat, electric corner forms of electricity generation. Due to Pluto too far away from the sun, sunshine by the sun to Pluto takes about 4 hours, solar energy in the vicinity of the Pluto can accept only one thousandth of the earth, ship detection cannot use solar power generated an adequate energy supply activities required, so nuclear battery is the only choice. In fact, all outer space detectors are using the same design, including the "Cassini" ship detection. The probe ship is provided with a steering engine to adjust the phase of the probe, which can be corrected to the orbit of Pluto in almost ten years. When the boat close to Pluto, to adjust the detector so that all point to pluto. When over Pluto, but also adjust the hull in order to observe the Charon, pending completion of the detection, but also to turn the school ship, the high gain antenna pointing toward the earth, and the collected data back to earth. This design is due to the limited budget, the New Horizons spacecraft can not like just as its predecessors "traveler", on the 2nd, using a rotary platform, can be relatively simple to execute instructions, but only to regulate hull phase the complex method to accomplish the task.
②关于你的第二个问题,美国这么重要的成果,当然不会用又慢又不安全的普通计算机传输了,用的是很先进的——“新地平线”探测船安装了一只直径2.1米(83英吋)的高增益天线,能够与地球的深空网络保持联系,接收来自地球的指令,以及将收集得到的科学资料输送回去地球。另外安装在高增益天线正上方的是低增益天线,是高增益天线的后备,以备不时之须。高增益天线有两条频带收发讯号,频谱宽阔,上传下载速度高,相比之下,低增益天线只有一条窄频带,效率较低,但是在紧急情况之下,可以顶替高增益天线的工作。我的回答希能帮助您,谢谢。
II on your second question, the United States so important results, of course, will not use slow and safe and not ordinary computer transmission, use is very advanced -- "New Horizons spacecraft installed a diameter of 2.1 meters (83 inches) high gain antenna, and the ball deep space network keep in touch, to receive instructions from the earth, and scientific data will be collected, transported back to earth. In addition, a low gain antenna is mounted on a high gain antenna, which is a backup of the high gain antenna to be prepared from time to time. High gain antenna has two bands to send and receive signals, a broad spectrum, upload and download speed is high, in contrast, low gain antenna there was only a narrow frequency band, low efficiency, but in an emergency can replace high gain antenna. My answer is that I can help you, thank you.
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第1个回答  推荐于2017-09-26

由于冥王星距离太阳太过遥远,“新地平线”号无法使用通常的太阳能电池板供电,而是采用“放射性同位素核电源”(RTG)。这个核电源是利用11千克的钚238衰变产生的热能来发电。在发射的时候,RTG的发电功率为250瓦,理论上每过四年功率下降5%,目前功率降低到了大约200瓦。相似的核电源曾用在“旅行者”深空探测器以及宇航员登陆月球的时候。

第2个回答  2016-06-28
新视野号不是飞着去的,而是像太空垃圾一样飘着去的,只是没讲明罢了。
地球上的科技水平没法让它一直飞行,不过地球上的科学家有个最大的特点就是夸大水平,吹牛骗经费。
第3个回答  2015-07-15
因为是太阳能的
第4个回答  2015-07-16
因为视野宽阔
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