1、,嫦娥二号,比较,The advantage of “Change II”,Orbit time reduced by half; orbiting height of cut in half; radio transmission(无线电传输） frequency higher; laser emission （激光发射频率）frequency is 5 times higher; camera resolutions（分辨率） up 17 times; transfer rate increased by 1 times. 3 Researchers installed a resolut
2、ion for its 10-meter CCD camera, which more than 120 meters Change resolution camera looks cl Orbit time reduced by half;,月亮女神,Inertial navigation system （惯性导航系统）inertial navigation system can calculate the direction and rate of the rockets flight, if necessary, automatically correct the deviation f
3、rom the flight, it can guide the rocket during flight into the designated orbit.,Moon Goddess advanced equipment,1, X-ray fluorescence spectrometer:荧光X射线 composition of the lunar surface can determine the type and number of elements. 2, the gamma-ray spectrometer:伽马X射线分光计 uranium and other radioacti
4、ve 放射elements to determine the distribution of the moon. 3, multi-band imaging instrument:多频带成像仪 used to study the distribution of lunar surface rocks.,4, the spectral profile instrument:光剖面仪 detailed analysis of the lunar surface could be the type of rock.5, topography Camera: used to take high-res
5、olution three-dimensional images of the lunar surface.6, the moon radar 雷达sounding device: to explore the moon surface the following 2 km to 5 km structure.7, a laser altimeter: 激光高度计ring the topography of the lunar surface to draw accurate maps.,月球勘探者,The gap of change,Is the spacecraft mass, forty
6、 years ago the level of a hundred-ton Soviet Union, the United States, “Saturn V type”土星五型 rocket can send one hundred thirty-nine t load of low-earth orbit satellites; Russian “energy number” 能源号as a hundred and five tons, the EUs Ariane V 阿丽亚娜五号 rocket delivery capacity of dozens of tons; Chinas L
7、ong March 2F rocket capable of delivering the Shenzhou VI space capsule about eight tons, are being developed The high-thrust rocket up twenty-five t level. Obviously China rocket fuel, the engine must work and the overall level.,旅行者二号,Regardless of one unmanned spacecraft, to be maintained with the
8、 ground command station messaging. Change project monitoring range 测控范围o four hundred thousand kilometers, and cooperation between China and the European Space Agencys probe II TC2 探测二号king hundred thousand kilometers away, however. The United States in 1977 launched the Voyager One旅行者一号ctor has bee
9、n escape from the Earth fifteen billion kilometers, equal to the distance from Earth to the sun, a hundred times, even the speed of radio waves, Voyager One back signal must go through thirteen, four hours to get back to Earth. Rely on only a few watts of spacecraft power directional emission, weak
10、electrical signals 电子讯号he general electronic watch batteries billion by one, Americans are still able to receive and analyze data, this is the technology level of thirty years ago.,The gap of energey,Ion离子 engine of “Smart One”Consumes only about 70 kg of fuel, about the traditional use of chemical fuel engine fuel spacecraft one-tenth of the required.,Chandrayaan,1 electron volt Atom reflection analyzer电子伏原子反射仪2 minerals plotter绘图仪3 Spectral Imager4 mini synthetic aperture radar laser rangefinder5 Near-Infrared Spectrometer,
