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Kennedy
Space Center
1993 Phase II
G-LoggerTM
Acceleration Acquisition System
Silicon
Designs, Inc.
Issaquah, WA
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INNOVATION
The G-Logger is a portable,
tri-axial data acquisition system for acquiring, storing, and analyzing
shock, vibration, and temperature data. The device is self-contained
and sealed from the weather, and can operate unattended for up to 3
weeks on two D-cell batteries
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G-Logger Products
Optional Powerpoint
file
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ACCOMPLISHMENTS
- Silicon Designs, Inc., of Issaquah,
Washington is commercializing the G-Loggerâ„¢ Acceleration Acquisition
System developed under a Small Business Innovation Research (SBIR)
contract with NASA at Kennedy Space Center
- The system is easily programmed
through a serial link to a PC or notebook computer running Windows
95/98. When activated, the G-Logger stores up to 8 megabytes
of acceleration and temperature data in non-volatile memory.
Efficient use of the memory is made by preprocessing the data into
the parameter of interest before being stored. The unit can
store sampled, peak, or RMS acceleration or velocity at a rate of
1 to 4,000 samples per second. After data collection, the
data is subsequently downloaded to a PC for display and analysis.
The G-Logger is well suited for a wide range of applications, including
measuring transportation shock and vibration, instrumenting motor
vehicles, aircraft and missiles, and unattended testing of machinery
and equipment. The unit is priced at $4,995 each in quantities
of 1-5
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COMMERCIALIZATION
- Silicon Designs is
marketing the innovation as the Model 3310 G-Logger(tm). The
company sees applications in many industrial settings, including
the automotive, shipping, aerospace, and rotating machinery operations
- The G-Logger can be
used as a shipping and handling monitor for commercial shippers
where it records tri-axial acceleration, vibration, and shock conditions
experienced by payloads. Since its response capability includes
DC, it can also measure payload orientation. For automotive
applications, the G-Logger can be used for suspension testing, as
a crash event detector, or for race car instrumentation. For
industrial applications it should prove useful as a vibration monitor
for rotating machinery. For aircraft applications, the G-logger
can serve as a flight vibration monitor
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GOVERNMENT/SCIENCE
APPLICATIONS
- NASA's need for this innovation
came from the KSC Payloads Operations group. Space Shuttle
payloads are critical pieces of equipment that are sensitive to
movement. The ability to track the vibration and movement
of the payload would greatly influence the ability to detect damage
due to movement. Numerous payloads have to be transported
from assembly and test facilities to the Shuttle launch pads and
other assembly buildings
- NASA named this innovation the
Smart Tri-Axial Acceleration Data Acquisition and Storage System.
The objective was to build a tri-axial acceleration data acquisition
system (DAS) for payload monitoring that can continually measure
and record three orthogonal acceleration components for a period
of up to 4.6 days
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For more
information about this firm, please send e-mail to company
representative
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to NASA SBIR Success Listings
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Curator:
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