Date post: | 14-Apr-2017 |
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Technology |
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Ross OverstreetSenior Sales Engineer
R&D/Science Segment
2Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Agenda
• Quick intro to FLIR
• ResearchIR Software & FLIR Camera Demo
• Types of IR cameras and how they work
***LUNCH***
• Microscope Optics, Extender Rings & Spot Size
• PCB Inspection demo
• Emissivity & Accuracy
• High Speed Infrared Demo
4Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
5Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
FLIR Science Segment Engineers
6Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
FLIR ResearchIR Software & Camera Demo
7Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Types of Infrared Cameras
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SWIR MWIR LWIR
1.7µm 2.5µm 3.0µm 5.0µm 14.0µm8.0µm
NIR
1.0µm
UV Visible
0.4µm
Silicon CCD
Thermal or Power Detectors – Lower Cost
Photon Detectors – Higher Performance
InSb
IR Detector Technologies
InGaAs
µBolometer
QWIP
LW MCTMW MCTSWIR MCT
Thermal Bands
BB InSb
SLS
9Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
• Thermal or Power detectors -Pixels are directly heated by Infrared Radiation
• Change in Resistance in response to Δtemperature
• Vanadium Oxide (VOx )
• Amorphous silicon (AS)
Microbolometer Basics
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Microbolometer TrendsYEAR Camera NEdT Pkg Price
2003 SC2000 100mK $70K
2004 A40 80mK $39K
2009 A325A320
50mK50mK
$23K $13K
2010 SC660SC620
30mK45mK
$43K$33K
2014 T650scA655scT450scA325sc
<30mK
<50mK
$28K$20K$15K$10K
2015 T1000 series <30mK $43K
32
0x2
40
64
0x4
80
10
24
11Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Features:• Low Cost• Rugged & OK for 24x7 use• 6 deg telescope to 25um micro optics• Low Power, Light Weight, Portable
Microbolometer Review
Limitations:• Slow (30 fps)• Long time constant (6-12ms)• No control over timing/triggering• No access to raw data• Limited support for custom optics• Less optics options than cooled cams
12Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
300K
InSb FPA
Window (1-12um)
Cold Filter 3-5um
Vacuum
Cold Stop (defines f#)
baffle<77K
Compressor Piston
Photon Detectors
• Photons are converted into electrons and stored in an integration capacitor
• InSb cameras have quantum efficiency ~90%
• Major detector types
•InGaAs (0.4-1.7um)
•InSb (1-5um)
•SLS (7.5-9.5 um)
Photon Counting Detector Basics
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Focal Plane Array
Typical Cooled Camera DDCA
Linear Stirling Cycle Cryocooler
Cold Finger
Cold Shield
Cold Stop
14Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Assets:• Most sensitivity (18-35mK)• Very fast! Both frame rate & integration time• Most flexible optics• Lowest level access to raw data• Tremendous control over timing/triggering
Photon Counting Camera Review
Limitations:• Expensive ($50K-$140K)• 8-12K hour MTBF• Less portable
15Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Microbolometer Cooled Camera
Sensitivity (NEdT) 30-50mK 18-35mK
Frame Rate 30 fps 120-2000+ fps
Shutter Speed 8ms TC = 40ms response time 1-4ms typical
Triggering NA extensive
Optics 7 deg to 25um 1 deg to 3.5um
Costs $10K - $30K $50K - $140K
Microbolometer / Cooled Comparison
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Sensitivity
A6700sc <20mK T650sc/A655sc <30mK
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Cooled cams originally designed for Military Test Range
Near IR (NIR): SC6200 InGaAsMidwave IR (MWIR): SC8313 InSbLongwave IR (LWIR): SC6700 SLS
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New A-series Cooled Cameras
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Most common FLIR R&D/Science CamerasPe
rfo
rman
ce
T630scT650sc
A655sc
T430scT450sc
A325sc
SC6800
SC6700
SC8300SC8200
A6700sc/A6750sc
A8300sc
Call for current pricing
20Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
LUNCH BREAK!
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Spatial Resolution is becoming more important!
21
Surface Mount Technology (SMT)
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Close-Up Optics & Extender Rings
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Common Spatial Resolution / FOVs
Spatial Res. um/pixel 320x240 FOV (mm) 640x480 FOV (mm)
100 32x24 64x48
50 16x12 32x24
25 8x6 16x12
Mag Factor 640x512 1280x720
1X = 14um/pix 9.6 x 7.7 17.9 x 10.1
4X = 3.5 um/pix 2.4 x 1.9 4.5 x 2.5
Un
coo
led
Co
ole
d
24Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Spatial Accuracy – Spot Size Concerns
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Sizes of Surface Mount Components
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A325sc, 45 deg lens, min focus
• 168mm x 128mm @ 200mm (WD)• 525um IFOV• 2x1 pixels “on target”• Bad Data!
Do the math…Assume 0402 R (1.0 x 0.5mm)
A325sc, 45 deg lens, “micro trick”
• “push” in to 1.5” working distance• 125um IFOV, 40mm x 30mm FOV • 8x4 pixels “on target”• Decent Data!
A325sc, 50um lens
• 12mm x 16mm @ 33mm (WD)• 50um IFOV• 20x10 pixels on target• Great Data!
27Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Spatial Resolution
25 um/pixel lens, 16x12mm overall FOV
4 um/pixel lens 5.1mm x 2.9mm overall FOV
28Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Spatial Resolution
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Mixed Signal Device – GaAsA8303sc + 4X micro (3.5um/pixel)
2.5
mm
4.5 mm
30Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Mixed Signal Device – GaAs - Subtracted
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Cell Phone Amplifier – A8303 4X micro
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Cell Phone Amplifier – A8303 4X micro
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Demo
• PCB Inspection
• Image subtraction
• Microscope lenses
• Extender rings
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Wabs
% transmission
% emission
% reflection
TOTAL
≠ Actual Temperature
Total Energy = e + t + r
Reflected Apparent Temperature
Apparent Temperature
Introduction to Emissivity
35Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
EMISSIVITY VARIES WITH
SURFACE FINISHANGLE
SPECTRUM
TEMPERATURE
36Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Typical PCB emissivity issueShiny metal package, reports 27.5C
Kapton Tape coupon, reports 43.9C
Surface with poor emissivity under-reported by 16.4C!
37Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
If ε is poor, coatings are your friend!
ε = 0.82-0.88 (black anodize)ε = 0.07-0.21(bare to sandblasted)
ε = 0.95 ε = 0.95 ε = 0.95 ε = varies(can be as good as tape)
40Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
Knowledge of emissivity is critical!
Kap
ton
Stai
nle
ss
Flat
Bla
ck
Elec
tric
al
Tap
e
Ligh
t P
ow
de
r
Hea
vy
Po
wd
er
70C
34C
70C
17C
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HIGH SPEED & WRAP UP
[email protected], 800.905.9557 (m)
42Proprietary ©2014 FLIR Systems Inc. Information and equipment described herein may require US Government authorization for export purposes. Diversion contrary to US law is prohibited.
X6900sc - World’s Fastest Full Resolution IR Camera
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High Speed Thermography
• Fast Frame rates - 640x512 @ 1000fps
• Stop Motion for Accurate Measurements
• Thermally Characterize your object
Airbag Deployment Combustion Engine Research Ballistics & Muzzle Dynamics
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On Camera Recording
• Record for 26s at full frame rate to RAM
• Fast download to Removable SSD Drive
• Quick De-Classification with removable SSD Drive