MICROWAVE INVESTIGATION OF LUNAR REGOLITH Dmitri Skulachev, IKI, Moscow.

Презентация:



Advertisements
Похожие презентации
IS A LUNAR SOIL STICKY? Dmitri Skulachev, IKI, Moscow.
Advertisements

Weather and climate of Belarus. What is the climate of the weather? Weather - is the state of the atmosphere in this location at a certain time or for.
A Trip To Mars. Mars Mars is the fourth planet from the Sun in the Solar System. It is often described as the Red Planet. Mars has two moons, Phobos and.
Change in the weather and climate in the world. Changing weather and climate are variations in the Earth's climate as a whole or of its separate regions.
Invitation to Pym-Va-Shor Made by student of 9-th form Kharuta Belyaeva Elena School teacher Ponomareva Svetlana Alexandrovna Made by student of 9-th form.
Protein-water interactions Water associated with proteins can be described as being one of the following three types: Free water Associated (bound) water.
S12-1 PAT325, Section 12, February 2004 Copyright 2004 MSC.Software Corporation SECTION 12 MODELING SANDWICH / THICK SECTION.
Snow analysis, parameterisation of deposition and melting Ekaterina Machulskaya Hydrometeorological Centre of Russian Federation, Moscow, Russia Moscow.
Ways to Check for Divisibility Vüsal Abbasov Dividing By 1 All numbers are divisible by 1.
Transpiration. Transpiration is a process similar to evaporation. It is a part of the water cycle, and it is the loss of water vapor from parts of plants.
Have you ever used a magnifying glass to make something melt or burn? You were using solar power!
Location and climate of Australia. Australian Geography is very unique, not least because of the state that borders coincide exactly with the boundaries.
What is it The greenhouse effect is the absorption of energy radiated from the Earth's surface by carbon dioxide and other gases in the atmosphere, causing.
My room There is a window in my room. ` My room There is a bed near the wall.
Foreign languages in my life. 1.English language can help me to achieve future success in my life. 2.It gives me different possibilities. 3.English helps.
Energy saving. Energy conservation Energy conservation is the reduction of energy consumption through the use of a smaller quantity of energy services.
MEK-6400 series Technical seminar Sensors adjustment.
PROJECT Ecological Problems In the world. I. Introduction The theme of our report is Global ecological problems. We would like to tell you about the most.
Among the reasons of occurrence of forest fires is considered to be the main anthropogenic factor (according to the statistics on population fault occurring.
Single-phase half-bridge inverter. Operational Details Consists of 2 choppers, 3-wire DC source Transistors switched on and off alternately Need to isolate.
Транксрипт:

MICROWAVE INVESTIGATION OF LUNAR REGOLITH Dmitri Skulachev, IKI, Moscow

Выжить на Луне? ? ? S urvive on the Moon?

1400 W/m 2 Solar panel

+ H 2 O O2O2 Solar panel Moon water source

Выжить на Луне можно, You may survive on the Moon, если есть вода! if you have a water! Solar panel Moon House Moon dog Moon water source

Синим показаны области поверхности с повышенным содержанием водорода There are some places with a wet soil on the Moon (?) На Луне есть участки влажного грунта (?)

метеориты meteorites вулканы volcanoes солнечный ветер solar wind P+P+ неизвестные источники unknown sources Источники лунной воды? Moon water sources?

Отпечаток башмака астронавта в лунной пыли Лунный реголит. Средний размер частиц ~ 100 мкм Лунная пыль и лунный реголит A lunar dust and a lunar regolith An astronaut footprint in the lunar dust Lunar regolith. Main grain dimension is about 100.

Свойства лунного реголита Density: ρ = g/cm 3 Permittivity GHz) : ε = Loss tangent GHz): tgδ = Thermal conductivity: = W/m·K Density: ρ = g/cm 3 Permittivity GHz) : ε = Loss tangent GHz): tgδ = Thermal conductivity: = W/m·K A lunar regolith properties

Водяной лед Water ice Реголит Lunar regolith ε = – 3.5 tg δ = – СВЧ свойства льда и лунного реголита Льда на поверхности Луны найдено менее 0.1%. Прямыми СВЧ методами обнаружить столь малое количество невозможно! A microwave properties of an ice and a regolith A 0.1% of water content is found on lunar surface. It seems to be impossible to detect such amount by direct microwave measurements!

СВЧ методы поиска лунного льда? A lunar ice search by microwave methods?

СВЧ методы поиска лунного льда? A lunar ice search by microwave methods? :(

λ regolith = W/m·K λ = 3.5 λ = 0

Зона контакта Contact area

Ледяная пленка Ice skin Зона контакта Contact area

M. A. Siegler, et al. 2011

Температуры реголита в приполярной области λ increased Regolith temperatures at a polar region

Даже небольшие количества льда в состоянии существенно изменить теплопроводность реголита. Even a small ice amount in a regolith may considerably change total thermal conductivity. Теплопроводность реголита влияет на величину суточного хода температуры на различных глубинах. A regolith thermal conductivity affects daily variations of temperature at different depths. Измерить температуру реголита на различных глубинах можно с помощью СВЧ радиометра, работающего на нескольких частотах. It is possible to measure regolith temperatures at different depths by the help of multi-frequency microwave radiometer. ! !

Многочастотный радиометр «РАТ» Multi-frequency microwave radiometer PAT Многочастотный радиометр «РАТ» Multi-frequency microwave radiometer PAT F1 F2 F3 μСμС RS GHz 3 V Load А2 А1

СВЧ часть радиометра Microwave part of the radiometer

Радиометр «РАТ» (макет) Radiometer PAT (experimental model) 10 cm

Параметры радиометра «РАТ»: PAT radiometer specification: - frequency range: from 8 to 20 GHz (three bands) - sensitivity: 0.1 К - mass: 510 g - power consumption: 600 mW - power supply: primary Li-SO 2 element - mode of operation: continuous, cyclic - 3 min measuring and 12 h pause. Параметры радиометра «РАТ»: PAT radiometer specification: - frequency range: from 8 to 20 GHz (three bands) - sensitivity: 0.1 К - mass: 510 g - power consumption: 600 mW - power supply: primary Li-SO 2 element - mode of operation: continuous, cyclic - 3 min measuring and 12 h pause.

Luna-Glob, South Pole region Luna-Resurs North Pole region

Thank you for your attention!