SPACE FLIGHT SYSTEMS RADIOISOTOPE POWER SYSTEMS PROGRAM OFFICE NATIONAL CENTER FOR SPACE EXPLORATION RESEARCH EXTERNAL PARTNERS EDUCATION/OUTREACH SPACE EXPLORATION BENEFITS PROGRAM SUPPORT IMAGE GALLERY



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Strategic Science

 

The Glenn Research Center is supporting NASA science objectives in many areas by applying our core competencies and experiences to address new challenges in a strategic sense. This page describes some of the ways GRC is utilizing its strengths in instrumentation, flight concept and development engineering, and science to develop advanced remote or in situ instrumentation, partner with scientists on missions and instruments, or applying scientific processes to address fundamental questions.

NASA GRC has developed unique instruments in support of NASA science. One recent example is the development of seismometer that can function at the extreme pressures and temperatures found on the surface of Venus. To meet such a requirement specialized high-temperature electronics are being developed that can operate at over 500° C (or 900° F), a temperature at which many metals glow red. The seismometer is being designed to operate wirelessly so that any interactions between a Venus lander and its environment can be minimized and thereby achieve better seismic data.

Other instruments and sensors are being developed and are at various stages of maturity, some flight ready and others at lower Technology Readiness Levels (TRLs). Examples include a suite of sensors for Dust Characterization in a Mars environment. The suite of sensors includes a spectrometer, microscope, dust counter, radiometer and others. Flight units of this suite were built and delivered for integration with a spacecraft.

Another instrument developed at GRC is an airborne hyperspectral imager. This imaging spectrometer operates in the visible wavelengths and near infrared with two nm spectral resolution and approximately two m (six ft) resolution when flying at three km (10,000 ft). This instrument has been used on multiple science campaigns to study water quality, specifically early detection of harmful algae blooms.

An example on the other end of the maturity level is the GRC patented radiation sensor. This sensor is unique in its ability to sense radiation from multiple directions in a highly compact and efficient manner.

The Center has been developing a unique world class capability for planetary science called the Glenn Extreme Environments Rig (GEER). GEER is a unique and world class ground-based test rig that can accurately simulate atmospheric conditions for any planet or moon in the solar system and beyond. This capability enables basic science investigations and pre-flight development and validation of spacecraft systems and instrumentation in extreme environments. GEER includes a three cubic m (103 cubic ft) chamber and will be able to simulate the extreme temperatures over 500° C (900° F) and pressure (from near vacuum to over 90 times the Earth’s surface pressure). GEER has gas mixing capabilities to reproduce unique planetary environments, such as the very caustic sulfuric acid found in Venus’ atmosphere, or hydrocarbons like methane found in the atmosphere of Satern’s moon Titan.

The Center’s concurrent engineering design team, Collaborative Modeling for Parametric Assessment of Space Systems (COMPASS), has studied and generated numerous science mission concepts and conceptual spacecraft designs along with all the supporting data like master equipment lists (MELs), cost models, power budgets, and so on. The team works with scientists in real time to develop a complete concept and identify first order mission highlights and challenges.  Mission and instrument concepts are matured to support science program plans and the best concepts are proposed in NASA’s science solicitations.  More information on Glenn Engineering labs including COMPASS and mission concepts may be found at http://engineering.grc.nasa.gov/labs.htm.

poster 1 poster 2 poster 3 poster 4 poster 5
Solar Electric Propulsion Stage Mars Moon Sampler Mission Mars Earth Return Vehicle (MERV) Mission Kuiper Belt Object Orbiter (KBOO) Mission Near Earth Asteroid Sample Return (NEARER)


Sampling of Projects


500ºC Venus Seismometer


• Seismometer and SiC Electronics Have Been Demonstrated Separately at 500°C  in Year 1

• Year 2:

     • Conversion Of Seismometer  Mechanism Output At 500° C Correlated To Input Frequency

     • Seismometer Mechanism Modifications Identified

     • Seismometer Integrated With High Temperature SiC Circuit Established Including Wireless Circuit

     • Testing Of Seismometer And Wireless Circuit Accomplished In A Furnace With 1 m Wireless Transmission

High Temperature   wireless   test setup

High Temperature Seismometer Mechanism.

Photograph Of The Wireless Seismometer Mechanism and Circuit in an Oven.

Photographs Of The Wireless Seismometer Sensor Test Setup.



Airborne Science Observations

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First Robotics

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Capabilities


Extreme Environment



Objective:

• Leverage recent NASA investments and GRC core capability to realize a one-of-a-kind highly-valued science and test capability

• A unique world class capability

• Several missions planned for Venus and other planet surfaces

      »Still a top destination for New Frontiers Mission class and Venus is a noted future flagship destination in the recent   Planetary Decadal Survey

    »With minimal upgrades rig can simulate nearly any planetary atmosphere


Characteristics:

Specs for existing Facilities and new GRC Capability

Location

Volume (ft3)

Pressure (bar)

Temperature (°C)

Species

Material of Construction

Dimensions (ft by ft)

MIT

0.005

1 to 200

20 to 700

CO2

Inconel 625

0.04 by 1

MIT

0.08

1 to 200

20 to 700

CO2

Inconel 625

0.08 by 4

NASA GSFC

0.52

1 to 95.6

20 to 467

CO2, N2

Stainless Steel 304

0.41 by 1

NASA JPL

1.53

1 to 92

20 to 500

CO2, N2

Unknown

0.33 by 4.5

Georgia Institute of Technology

4.22

1 to 100

20 to 343

CO2, N2

Stainless Steel 304

1.16 by 1

NASA Glenn

113

1 to 103*

20 to 537*

All

Inconel liner, SS304 hull

3 by 4


Current Status

• Leverage existing space and investments

     • Have a full dedicated cell in building 334

• Minimum operations expected later this year

gas mixer gas mixer current status

 


Instrumentation


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Mobility


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Space Simulation Environment


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