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[ Music ]

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>> The single word I would use

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to characterize FOSS
is revolutionary.

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If it can be used and utilized
and implemented effectively,

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I believe it can really
revolutionize the way we do our

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business in aerospace.

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>>Gamechanger. Fiber optics is
a gamechanger

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because we can lay a line of 
fiber in any orientation

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on that structure and we
can get a continuous measurement

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of strain.

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>> It's a gamechanger because
it gives designers real time

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information which they never had
before.

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[clacking]

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>> These are all individual 
fiber optic sensors on the wing,

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and then these are the
individual strain values.

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>> We have deeper insight
into how a structure performs,

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not only in operation but all
the way through its life cycle

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from the development
of the structure;

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as you get it ground
tested, as you transition

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into a flight environment,
as you get to the end

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of a life cycle when
you're trying

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to determine how much
life is really remaining

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in the structure?

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FOSS can save time on your
schedule for installing sensors,

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it can give you greater insight
and much more spacial fidelity

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in your measurement
system than ever before.

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>> We have given the designers
a new tool within their toolbox

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to use to validate their models.

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>> The state of the
art technology

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in fiber optic sensing is
something we've been advancing

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in order to be able to
allow a wing in flight

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to maintain the optimal
configuration

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and the first step towards wing
shape control is knowing what

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the position or the displacement
or deformations of that wing is

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as they traverse through the
air and they're subjected

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to wind gusts and atmospheric
turbulence and things like that.

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The genesis of FOSS came
about as a result of working

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with conventional technology.

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What I mean by that is
strain gauge technology

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in particular, and
thermal couples.

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Strain gauges measure strain

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and thermal couples
measure temperature.

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>> This is the conventional way

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of doing health monitoring
for structures.

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Each one of these connectors
is the termination for each one

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of these gold packages that you
see mounted on this panel.

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And each of these gold packages,

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these conventional
strain gauges,

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have with them the
associated wires that have

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to be soldered on,
has to be prepared,

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they have to be terminated using
various types of connectors.

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There's a lot of work involved

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in installing these
conventional strain gauges

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and with the strain gauges,

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they are only making
point measurements.

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So wherever you see a gold
package, we are making

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that strain measurement
at that one location.

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>> Imagine having your
arm have one measurement

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and you wouldn't be able to
feel anything else around it,

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it's kind of limiting.

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Same thing structurally, you
don't have a lot of insight

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into what's going
on in the structure

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if you have a sensor
every several feet.

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The FOSS technology allows you

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to have a sensor every quarter
inch along the single optical

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fiber; that allows you
to look more and more

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like a biological system.

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>>Very light weight, much easier
to install, less complexity,

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21 strain measurements, 1400,

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one thousand four hundred strain
measurements on a single fiber.

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For practical purposes, you
can put as many of these fibers

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on your vehicle as you want to
or on your structure as you want

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without sacrificing the
weight requirements.

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>> Instead of using current
and voltage and resistance

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of that electrical
resistant strain gauge,

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now we're shining a light
down this optical fiber.

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>> And as that light
propagates down the fiber,

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it comes in contact with
what we call Bragg gratings.

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And these Bragg gratings are
like translucent mirrors that

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reflect at very unique
wavelengths.

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These unique wavelengths

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that are reflected are
actually sampled and measured.

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>> Those changes in wavelength
are what we calibrate

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to engineering parameters.

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>> One of the powerful
aspects of FOSS is

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that it's not only the
number of measurands

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that you can monitor, a
measurand being strain or

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temperature, basic engineering
parameters

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that we use quantify a
structure's performance.

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It could also measure liquid
level, magnetic field,

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three dimensional shape.

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>> As I apply pressure
on this test article,

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we can see how the
shape is changing,

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as well as the intensity

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of the strain being felt
by the test article.

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What we have here
is the demonstration

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of the liquid level
sensing technology.

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What we're able to do is
use the fiber optic sensors

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to monitor the different
absorption rates of the liquid

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and the air to determine
where is the boundary

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between liquid and air.

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Here we have a demonstration

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of our hybrid fiber
optic system.

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With this, we're able to get our
quarter inch spatial resolution,

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at up to 100 samples a
second and at strategic places,

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we can place a strong
grating that we call it,

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allows us to acquire
strain measurements

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at up to 5 kilohertz.

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>> I think commercial
applications are really endless

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and the more that we explore
interest in different realms,

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we understand that there's
really a role for FOSS in ways

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that we never imagined
to begin with.

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>> In 20 years, the hope
is that we would see this

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on commercial aircraft;
we would see it

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on expendable launch vehicles,

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as health management systems
for ELVs.

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Another big area is oil and gas;
monitoring the drill head on a

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down-hole rig, being
able to look

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at what the status is
on the holding tanks.

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>> Liquid level inside of
tank, in cryogenic propellants

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or in any kind of
fluid through pipes.

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>> The list just goes on and on.

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[ Music ]

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>> I think what excites me most

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about FOSS is seeing the
light go on in people's eyes,

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the lightbulb actually shows up
above people's heads

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when you start to
describe, for the first time,

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the capability of
the technology.

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This could really change
the way they do business.

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This could save a lot of time

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on their schedule because now
they only have one system

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that can perform all
these measurements.

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So for me, seeing that epiphany,
seeing that actually develop

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and seeing the application
potential, I think,

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has really been rewarding.

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You know, it does go almost
anywhere into various places

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where you're monitoring 
structure,

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structural response so to see