Evaluation of space power materials flown on the Passive Optical Sample Assembly



Publisher: National Aeronautics and Space Administration, Glenn Research Center, Publisher: National Technical Information Service, distributor in [Cleveland, Ohio], [Springfield, Va

Written in English
Published: Downloads: 358
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Subjects:

  • Evaluation.,
  • Performance prediction.,
  • Spacecraft construction materials.,
  • Low earth orbits.,
  • Durability.

Edition Notes

StatementDonald A. Jaworske ... [et al.].
SeriesNASA/TM -- 1999-209061., NASA technical memorandum -- 209061.
ContributionsJaworske, Donald A., NASA Glenn Research Center.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15552336M

IntechOpen is a leading global publisher of Journals and Books within the fields of Science, Technology and Medicine. We are the preferred choice of o authors worldwide.   The Destiny window has the highest quality optics ever flown on a human-occupied spacecraft. Node 2 (N2) Low Temperature Loop (LTL) Pump Package Assembly (PPA) Gas Trap Install: Today the crew installed the last of the new Gas Trap Plugs on the N2 LTL PPA. Intended to give the crew extra time to response to an on-orbit emergency, these plugs. RME devices have flown on several previous flights and are part of long-term studies of radiation exposure during spaceflight. • TLD (Thermoluminescent Dosimeter) provided by Hungary. The six dosimeters were unstowed and located next to the United States PRDs (Passive Radiation Dosimeters) at about 3 hours into the mission. A space solar power system requires integration of many technologies in order to generate electricity from the Sun. Figure D-1 depicts a generic solar power system, from collection of the solar power to receipt of the solar power on Earth and delivery to the grid. This concept is .

a The primary source of information for this appendix was the Skylab EREP investigator's Data Book. b NASA Lyndon B. Johnson Space Center. [] The rationale for selecting the Earth Resources Experiment Package (EREP) sensors was based on the desire to explore various portions of the electromagnetic spectrum; on the need for correlating data among the various sensors; on the status . The duration of exposure was controlled by means of shutters and the type of radiation is selected by the use of optical bandpass filters. The Multi-Furnace Assembly (MFA) was a multi-user facility dedicated to material science experiments. It was a modular facility with a set of common system interfaces which incorporates twelve furnaces of. The ratio between the optical power reflected first at the glass-air interface (P 2,a) and, after filling the space with cell buffer, at the glass-buffer interface (P 2,b) is calculated by Eq. (1). Once the power ratio is known, it is thus possible to derive n buffer exploiting the Fresnel equations and Snell’s law (the incidence angle on. 2/12/20 2 Text and References •Principal textbook: •Spacecraft Systems Engineering, Fortescue, Stark, and Swinerd, J. Wiley & Sons, •Supplemental references –Space Mission Analysis and Design, Wertz et al, Microcosm Press, –Fundamentals of Space Systems, V. L. Pisacane, Oxford University Press, –Various technical reports and papers (e.g., NASA and AIAA.

A concept is described for the assembly of the outboard PV modules for Space Station Freedom. Analysis of the on-orbit assembly operations was performed using CADAM design graphics software. A scenario for assembly using the various assembly equipment, as currently defined, is described in words, tables and illustrations. Many solar array applications such as the Mars rover inflatable solar array, the JPL Deep Space Four (ST4) inflatable blanket solar array, and the Teledesic blanket solar array have been developed and prototypes have been built and tested. Several flight experiments are underway and will be flown . Space exploration, the investigation, by means of crewed and uncrewed spacecraft, of the reaches of the universe beyond Earth’s atmosphere and the use of the information so gained to increase knowledge of the cosmos and benefit humanity. Learn more about space exploration in this article. Free Space IR Optical Link Power off the board. Construct circuit as shown in figure 1 based on the circuit you built in previous part. Use the SFH for the IR LED, or light emitter. Use the SDP for the photo transistor, or detector.

Evaluation of space power materials flown on the Passive Optical Sample Assembly Download PDF EPUB FB2

The Passive Optical Sample Assembly (POSA) experiment flown on the exterior of Mir as a risk mitigation experiment for the International Space Station was designed to better understand the interaction of materials with the low Earth orbit environment and to better understand the potential contamination threats that may be present in the.

Evaluation of Space Power Materials Flown on the Passive Optical Sample Assembly Evaluating the performance of materials on the exterior of spacecraft is of continuing interest, particularly in anticipation of those applications that will require a long duration in low Earth orbit. Evaluation of Space Power Materials Flown on the Passive Optical Sample Assembly ; Atomic Oxygen Durability of Graphite Epoxy Composite Silver Mirrors for Space Power Applications August ; Atomic Oxygen Treatment as a Method of Recovering Smoke Damaged Paintings June Evaluation of Space Power Materials Flown on the Passive Optical Sample Assembly.

Article. Full-text available. May ; Donald A. Jaworske. The Passive Optical Sample Assembly (POSA. The general principles of space product assurance relevant to space optics are to properly define and control the materials and processes used in the manufacture, assembly, integration, and test of the components; to verify that the component meets its operational requirements with sufficient margins to account for any uncertainties ensuring Cited by: 1.

materials degradation in space, the low‑Earth orbit (LEO) environment, defined as ‑1, km above Earth’s surface, is a particularly harsh environment for most non‑metallic materials, because single‑oxygen atoms (atomic oxygen [AO]) are present along with all other environmental components (Yang and de Groh, ).

The opening part examines the basic criteria governing the selection of space power systems for specific applications. These systems range from the very limited power requirements of a ballistic space test through the potential goals of life support in lunar exploration to the long-rage goal of electric power systems for vehicle propulsion.

A very useful book to have available when developing and testing spacecraft equipment.” (Dr. Jenny Kingston, The Aeronautical Journal, October, ) “I strongly recommend Dunn’s book as a resource for all working in spacecraft materials and assembly and other related fields.

NASA’s In-Space Propulsion Technology Project funded the development of two prototype solar sail systems for ground testing to validate design concepts for sail manufacturing, packaging, and launch to space and deployment, attitude control subsystem function, and to characterize the structural mechanics and dynamics of the deployed sail in a simulated space environment.

Wettability at static state is the result of the equilibrium of three phases (solid, liquid, and vapor) at their interfaces. A liquid droplet on the flat surface cannot completely spread and thus will form a CA (θ) with the solid surface, as shown in Fig.

CA is determined by the surface/interface free energies (or surface tensions), which is described by the Young’s equation: (1) γ. Transmitted optical beams in free space are attenuated most by the fog and haze droplets mainly due to dominance of Mie scattering effect in the wavelength band of interest in FSO ( μ m – 2 μ m).

This makes fog and haze a keys contributor to optical power/irradiance attenuation. Michel Biron, in Thermosets and Composites, Examples of operational or development parts.

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Email of corresponding author: [email protected] Vanadium oxide films are often used in state-of-art opto-electronic, automobile, space etc. applications as optical switching, smart windows or. Passive Optical Sample Assembly (POSA-1) Objectives. The space environment has a strong degrading effect on some types of materials.

Atomic oxygen, ultraviolet radiation, thermal cycling, hard vacuum, and induced contamination can all affect optical properties and mechanical integrity of spacecraft materials. The Mir Space Station provides a unique opportunity to study the natural space. Material Testing.

Material electrical properties should be known before they are used. The key material properties needed are the ability to accumulate charge, i.e., resistivity or conductivity, and the pulse threat, e.g., stored voltage, energy. Secondary but important parameters include resistivity changes with time in space.

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The Passive Optical Sample Assembly I and II experiments consisted of various materials that are intended for use on the International Space Station.

These materials included paint samples, glass coatings, multi-layer insulation and a variety of metallic samples. Overview. Remote sensing instruments are of two primary types— active and passive.

Active sensors, provide their own source of energy to illuminate the objects they active sensor emits radiation in the direction of the target to be investigated.

Evaluation of Space Power Materials Flown on the Passive Optical Sample Assembly Skowronski, T. J., McCollum, T., Pippin, G., and Bungay, C., "Evaluation of Space Power Materials Flown on the Passive Optical Sample Assembly", NASA/TM Dever.

Evaluation of Space Power Materials Flown on the Passive Optical Sample Assembly April Prediction of In-Space Durability of protected Polymers Based on Ground Laboratory Thermal Energy Atomic Oxygen April Environmental Durability Issues for Solar Power Systems in Low Earth Orbit March STS - There was a tremendous difference between the space- and Earth-grown crystals with the microgravity crystals exhibiting vastly superior conformation and optical clarity.

They were also very large; being rhombohedra of mm on a side in some cases. Optical Properties Monitor (OPM) Orbital Debris Collector (ODC) Passive Optical Sample Assembly (POSA-1) Passive Optical Sample Assembly (POSA-2) Polish Plate Micrometeoroid Debris (PPMD) Collector Radiation Monitoroing Equipment - III Real-Time Radiation Monitoring Device (RRMD) Shuttle-Mir Alignment Stability Experiment (SMASE).

All the power transmitted down the line from the generator is not absorbed by the load; therefore, some of the unabsorbed power is reflected back up the line toward the generator.

The transmitted power at the antenna is less than that applied to the transmission line by the transmitter because of cable attenuation as well as the loss of. SPACE BASED ASTRONOMY.

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- search tool, Department of Energy science, Department of Energy technology, Department of Energy engineering, Department of Energy research. The National Aeronautics and Space Administration’s Space Solar Power (SSP) Exploratory Research and Technology (SERT) program 1 was charged to develop technologies needed to provide cost-competitive ground baseload electrical power 2 from space-based solar energy converters.

In addition, during its 2-year tenure, the SERT program was also expected to provide a roadmap of research and. Most materials are formed from a partially or totally fluid sample and the transport of heat and mass from the fluid and into the solid inherently influences the.

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Elements of Space Technology for Aerospace Engineers, Rudolph X. Meyer,Technology & Engineering, pages. This book is written to give aerospace professionals and students a.Evaluation and Selection of Replacement Thermal Control Materials for the Hubble Space Telescope The mechanical and optical properties of the metalized Teflon ® FEP thermal control materials on the Hubble Space Telescope (HST) have degraded over the nearly 7 years the telescope has been in orbit.

Given the damage to the outer layer of the.Gets you quickly up to speed with the theoretical and practical aspects of free space optical systems engineering design and analysis One of todays fastest growing system design and analysis disciplines is free space optical systems engineering for communications and remote sensing applications.

It is concerned with creating a light signal with certain characteristics, how this signal is.