Monday, December 27, 2010
"Phoenix" of ice on Mars rover to find the method (Figure).
<P Align=center> Keywords: Phoenix Mars probe to find the ice </ P> <P align=center> </ P> <P align=center> "Phoenix" No. 7 "weapon" </ P> .<P> 1. mechanical excavation arm. .2. Manipulator camera. .3. Heat and release the gas analyzer. .4. Microscopes and electrochemistry and conductivity analyzer. .5. Stereo camera. .6. Weather instrument. .7. Mars landing imager. .</ P> <P align=center> </ P> <P align=center> Phoenix shovels </ P> <P> According to foreign media reports, the U.S. Phoenix probe, Eastern Time, May 25 19 .When 53 pm (Beijing time at 7:53 on May 26th), successfully landed on Mars Arctic, looking for possible water. .Then Phoenix will be how to find water ice on it? .</ P> <P> successful landing of the Phoenix has been carrying a robotic arm like a backhoe, a miniature snow machines and a laser-guided weather station and other "baggage." .Pasadena, Calif. NASA's Jet Propulsion Laboratory, "Phoenix" No person in charge of the payload Michael Gros, said: "Most of the equipment is left over from other tasks." Tasks that previously developed for the technology equipment .such as "Mars Reconnaissance Lander" (Mars Surveyor lander), and "Mars Polar Lander" spacecraft (Mars Polar Lander), was worth 420 million U.S. dollars to equip the "Phoenix". .The task to dig through underground Martian soil samples to reveal whether there is water on the planet's secrets, to determine whether the region was the original life there. .World Scientific reports </ P> <P> Mining Red Planet </ P> <P> However, Gross and other engineers have warned that, "Phoenix" will be the implementation of new science missions have new requirements. .He said: "We will rely on the equipment left over from 2001 ('Mars Reconnaissance landers'), we have to rearrange everything. The current level is satisfactory, but there are things left over from defects, you must ensure that their .do not fall into the trap. "</ P> <P> first arm is missing the frozen Martian tundra mining capacity, thus strengthening its engineers with the Ministry, and aluminum materials into steel arm. .They also use the "ice land access device (Icy Soil Acquisition Device) replaced the original scoop. The ice plant in the excavation of soil for the soft soil of weathered layer of soil as hard as ice has a few tips." The world .Sci-Tech </ P> <P> First of all, by nearly 8 feet (2.3 meter) robotic arm moves through a backhoe, the soft surface area cleaned, exposed to ice. .Then the front end with a shovel blade cut a small piece of ice, but the real scoop behind when mining ice samples requires a small drill. .This spring loaded by spring pressure drill, the ground bounce, rotate, the friction of ice layers. .Loose wrist movement to promote the ice sample into a small room, so after the experiment. .</ P> <P> the University of Arizona in Tucson, "Phoenix" was the principal investigator Peter Smith said: "about 1 minute, it will collect a small amount of material into the scoop or small room. This drill can be .2 or 3 times the excavation. "Gross said, the robotic arm scoop the bottom there is flat land, it will be useless material removed in order to continue cutting the ice. .The robotic arm can dig down 20 inches (0.5 meters), is ever in the maximum depth of mining on Mars. .</ P> <P> Mars, the world's scientific and technological experiments reported </ P> <P> once the "Phoenix" to obtain the necessary samples, it is on Mars, the first-ever wet chemistry laboratory for preparation. .Microscopy, Chemistry and conduction electron analyzer (MECA) allow scientists to use a beaker the size of a one-time cup loose regolith soil on the acidic, mineral and conductivity analysis of the soil into a beaker them, dissolved in water, .After soaking and stirring study. .</ P> <P> microscopy, transmission electron analyzer Chemistry and will be used to detect the thickness of a sheet of paper in diameter is one-billionth (or 1 million times thinner than a sheet of paper is the study of Mars .minimum size) of the soil particles in the atomic force microscope. .Weathered layer of soft clay or other material signs that the past existence of water on Mars. .Another microscopy, transmission electron analyzer Chemistry and weathered layer can be found in the residual soil moisture, determine the soil temperature changes. .Heat and electrical conductivity probe similar to a cone-shaped "hook claws" to ensure accurate robotic arm to dig in the designated areas. .World Scientific reports </ P> <P> Gross said: "Scientists can microscopy, transmission electron analyzer Chemistry and surface material obtained under the dry environment of Mars to find water left behind. Heat and escape gas analyzer (TEGA) .will be responsible for finding the residual soil moisture. "arm will fit in eight soil and ice to escape the heat and the oven gas analyzers, each with a ballpoint pen cartridge oven as big. .This time a sample is slowly heated the oven to 1000 degrees Celsius (1800 degrees Fahrenheit) for scientists, research and analysis of solids, liquids and gases occur any change. .Heat and escape gas analyzer also includes a heated gas can be found in the chemical characteristics of the new spectrometer. .Because only 6 months time, and a limited number of ovens and beakers, "Phoenix" was chosen to researchers plan to test the Martian soil and ice to be careful when. .Smith said: "This is called negotiation. We will negotiate to find a house. If the results meet our requirements, we will make a final decision." </ P> <P> "Phoenix" most of the new technology .for the weather station (MET) prepared for the atmosphere of Mars will be launching the station a strong laser pulse, pulse dust and ice particles encountered will be bounced back. .Pulse will bounce back to provide information on atmospheric particles. .Ge Luosi that combine the old technology and new equipment, requires a lot of "systems engineering to ensure that everything smoothly." But from the United States, Canada and Germany, some very proud of the international equipment will be left behind " .Phoenix "landed, to help it find the soil samples. .Gross said: "'Phoenix' number does not mean the end of the landing." World Scientific reports </ P> </ p>.
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