WEBVTT

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Hi, my name is Andrew Bracy.

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I'm an instrumentation and
controls engineer within the

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Engineering and Test Directorate
at NASA's John C Stennis Space

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Center, America's largest rocket
propulsion test site.

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Stennis Space Center provides
test services for NASA and the

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Department of Defense as well as
the commercial sector.

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Ground testing enables A
comprehensive analysis of system

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performance to mitigate the
propulsion system risk inherent

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in spaceflight.

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To achieve this, test articles
and facilities are highly

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instrumented.

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Typical instruments include
pressure, differential pressure,

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temperature level, flow, strain,
vibration, as well as any others

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that may be required.

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The subtopic is seeking
intelligent network capable

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sensor systems to augment our
existing capabilities.

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Intelligent sensor systems would
provide a highly flexible

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instrumentation solution capable
of monitoring test facility

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parameters.

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Network connectivity enables the
ability to reduce or eliminate

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facility cabling which can
significantly reduce the cost of

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operations.

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It also provides the capability
of deploying instrumentation in

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remote or hard to access
locations.

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Intelligent sensor systems
should be capable of performing

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conversion of raw sensor data to
engineering units as well as

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time synchronization with other
data sets.

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This will facilitate integration
with data from existing data

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acquisition systems enabling
real time display as well as

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reporting of sensor data.

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Additional capabilities include
performing in place calibrations

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with NIST traceability and
onboard processing, utilizing

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artificial intelligence and
machine learning to gauge the

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accuracy and health of the
sensor as well as integrating

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into a larger system model for
system level diagnostics,

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anomaly detection, preventative
maintenance and failure

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prediction and analysis.

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The intelligent sensor system
would need to function reliably

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within the extreme conditions
experienced in space and

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propulsion test environments.

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This includes A rapidly changing
range of environmental

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conditions, from extremely cold
cryogenic temperatures to

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extremely high temperatures
experienced near rocket engine

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plume or combustion chamber.

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Additional environmental
considerations also include high

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vibration and shock, high flow,
high pressure, electromagnetic

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interference, and radiation, not
to mention the humidity in South

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Mississippi.

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There are currently no existing
intelligence sensor system

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options that meet NASA's current
needs for flexibility, size,

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mass, and resilience to extreme
environment.

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Intelligence sensor systems have
the potential for substantial

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reduction in time and cost of
propulsion system development

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with substantially reduced
operational costs and

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evolutionary improvements in
ground launch and flight system

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operational robustness.

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These capabilities would also
provide significant benefits for

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integration into systems for
autonomous operations,

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development of digital twin
models, system health monitoring

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and self maintaining systems.

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Successful phase one would
demonstrate the technical

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feasibility of the technology
and show a path towards the

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demonstration of the hardware
and software within an

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applicable environment.

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During phase two.

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Successful phase two
technologies will be candidates

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for integration and
demonstration in the ground test

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and support facilities at
Stennis Space Center and

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Marshall Space Flight Center, as
well as the Autonomous Systems

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Lab at Stennis Space Center.

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Robust intelligence sensor
systems capable of withstanding

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harsh environments have brought
applications across a wide range

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of industries including
chemical, petroleum, mining and

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manufacturing.

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They will allow industrial users
to meet efficiency, quality and

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safety requirements while still
offering easy deployment

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capability.