t44 - applications of modular terahertz instrumentation to industrial process monitoring and...
TRANSCRIPT
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 1/38
Applications of Modular TerahertzInstrumentation to Industrial Process
Monitoring and Non-Destructive Evaluation
David Zimdars
Manager of Terahertz Research andDevelopment
Terahertz 10
Savoy Place, London, UK
Thursday January 21, 2010
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 2/38
2
Picometrix, LLC• Formed in 1992 in Ann Arbor,
Michigan
• Subsidiary of Advanced Photonix,Inc. since 2005
– NYSE: AMEX listed (API)
– Leading supplier of TD-THzinstrumentation and optical
receivers utilizing Si, GaAs andInGaAs
– Industrial, military, homelandsecurity, medical and telecommarkets
• Picometrix 50,000 sq. ft. with fourTD-THz application labs
2
2925 Boardwalk [email protected] Arbor, MI 48104, USA www.picometrix.com
(734) 864-5600 www.advancedphotonix.com
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 3/38
T-Ray ® Global Markets
Homeland
Security
Aerospace
Military
Medical
Pharma
Industrial
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 4/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D E an d I m a gi n g
L a b an d C u s t o m C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a gi n g
I n d u s t r i al Onl i n e
M e a s ur e m en t
T-Ray 4000 Modular Product Line
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 5/38
Evolution of T-Ray ®
Instrumentation Platform1996 PhD-Built Discrete
Component Lab Setup(Bell Labs)
1999 Picometrix T-Ray ® 2000Patented Freely Positionable
Fiber Optic Driven THz Modules and Sensor
Technology
2002 Picometrix TMISTM and
2004 QA1000TM
All-In-One Control Unit
2007 Picometrix T-Ray 4000 ®
Industrial 19 in. Rack MountPortable Control Unit
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 6/38
Proprietary Picometrix SBIR Data Rights 6
Vertically Integrated
• Grow custom epitaxial structures for high speed
photoconducting antennas• Microfabricate T-Ray antennas
• Assemble rugged fiber-coupled transmitters and receivermodules
• Engineer and manufacture control unit and high-speedoptical subsystems
• Program control / analysis software
6
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 7/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D E an d I m a gi n g
L a b an d C u s t o m C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a gi n g
I n d u s t r i al Onl l i n e
M e a s ur e m en t
Common Control Unit: Flexibility & Expansion
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 8/38
8
T-Ray 4000Control Unit
• Interchangeable plug-in sensors•
Multiple sensor heads available• Transmission or reflection• Two measurement channels• Remote sensors up to 50 m• High-speed waveform acquisition
(A-Scan) – 100 Hz 320 ps
– 1000 Hz 80 ps
• Stable measurement• Dedicated software packages
– THz waveformacquisition and analysis
–
Imaging – Spectroscopy
• Portable, 19 in. rack mountable• Robust packaging• 0 – 35 °C
• Low RF emission8
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 9/38
Industrial Requirements
• Compact, reliable, robust
• Tolerant of the environment
– Temperature, dust, explosive atmosphere(sensors)
•
Non-interfering with the environment – Low RF emissions, certifications (UL, CE, FCC)
• High speed
– Waveform acquisition, processing
– Imaging and process control
• Easy to use
– Familiar to industrial personnel
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 10/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D
E an d I m a gi n g
L a b an d C u s t o m C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a
gi n g
I n d u s t r i al Onl l i n e
M e a s ur e m en t
Software for Data Acq., Spectra & Imaging
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 11/38
Terahertz pulse (TD-THz)
• Time Domain
– Time of flight – Weighing
– Thickness
– Index
– Scattering6
Frequency 0.05 – 4 THzWavelengths 6 – 0.1 mm
cm-1 1.7 - 100
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 12/38
Water Vapor Spectrum
Rapid scan resolution: 2-3 GHz (less than the pressure broadening at STP)
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 13/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D
E an d I m a gi n g
L a b an d C u s t o m
C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a
gi n g
I n d u s t r i al Onl l i n e
M e a s ur e m en t
Solutions for NDE and Imaging
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 14/38
Aerospace applications
Picometrix T-Ray 4000 ®
Radome delamination and water intrusion;with Hill AFB
Space Shuttle: ET tank foam NDE;Orbiter TPS Tiles-hidden corrosion detection;Next Gen Orion and Ares Applications: NASA
Aeroturbine Thermal Barrier Coatingmeasurement; with Navy STTR
F35 Intake Specialty Coating thicknessmeasurement; with WPAFB and NGC Palmdale
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 15/38
Deployed Application
Shuttle ET Tank SOFI
Reflection Imaging1.5 mm pixels 0.2 m/s
~ 1m x 1m
Youtube Video of NASA Scanning Tank with T-Ray 4000
http://www.youtube.com/watch?v=nRrZU_c5zN8
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 16/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D
E an d I m a gi n g
L a b an d C u s t o m
C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a
gi n g
I n d u s t r i al Onl l i n e
M e a s ur e m en t
New! T-Ray Computed Tomography
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 17/38
T-RayTM ComputedTomography
CT Gantry TD-THz Controller
THz Transmitter THz Receiver
Semi-transparent rendering
CT Gantry TD-THz Controller
THz Transmitter THz Receiver
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 18/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D
E an d I m a gi n g
L a b an d C u s t o m
C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a
gi n g
I n d u s t r i al Onl l i n e
M e a s ur e m en t
New! Hand-Movable Real Time Imager
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 19/38
Imaging Speed
Limitations of Gantry
• Maximum pixel rate typically limited by waveformacquisition rate – Standard option: 100 Hz
– High speed option: 1 kHz
• Increase the number of sensors• Maximize the scanning rate• Collect less than all the pixels
– Advanced algorithms and modulators
• Develop alternative to traditional single sensorX-Y raster scan gantries
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 20/38
T-ScannerTM
Portable High Speed Reflection Imager
• 150 mm (6 in.) wide scan• 2 mm spot size• Scan rate up to 15 Hz• Video rate B-Scan• Push by hand to sweep out
C-Scan
• Trade-off between scan rate, waveform acquisitionspeed and pixel size
• Current controllers are designed to collect waveforms ateither 100 Hz or 1000 Hz.
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 21/38
T-ScannerTM
Setup
ComputerControl / Display
T-Ray 4000TD-THz
Control Unit
Umbilical
T-Scanner
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 22/38
Delamination and Water IntrusionConstruction Example
Water intrusion into composite laminate panel degrades radar performance.Current solution: Tap Testing
Radome Panel
With Water Intrusion
Weather Radome
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 23/38
Ground-Based Radome Scan
• Scan width 150 mm• Maximum rate 15 Hz
• Maximum pixel rate 800pixels per second
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 24/38
Scan of C-130 Radome
• Large defect identified
• Plan images and cross-sections can be produced
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 25/38
F-35 Manufacture and Repair
• Panel fit and placement• Coating thickness
• Explosive environment
Step
Pulse Sequence
1
2
Gap
Coating
Substrate
This work sponsored by the Air Force Research Laboratory (AFRL).
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 26/38
Panel offset (step and gap)
Step
0 mils
5 mils
10 mils
30 mils
2
Gap
100 mils
250 mils
400 mils
THz can look through the coating to the underlying metal to adjust fitAlso deployed in the paint booth to control the thickness
This work sponsored by the Air Force Research Laboratory (AFRL).
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 27/38
27
Nondestructive Testing of Pipeline Repairs
• Petrochemicals – Pipe patch inspection
– Extends lifetime
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 28/38
Imaging StationTM
Motion Controller
Custom Gantry T-ScannerTM
T-RayComputed
Tomography
SpectroscopyStationTM
T-Ray
ExplorerTM
Software
T-Ray 4000
Control Unit100 Hz and 1KHz
T-Ray T-GaugeTM
T-Ray Transmitterand Receiver
T-Ray 4000
Base System
N D
E an d I m a gi n g
L a b an d C u s t o m
C onf i g ur e d R &D
New for 2010!
New for 2010!
New for 2010!
N D E an d I m a
gi n g
I n d u s t r i al Onl l i n e
M e a s ur e m en t
New! T-GaugeTM for Industrial Measurement
E t d d M t i l
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 29/38
Extruded Material
Manufacturing PlantNuclear gauge
–
total thickness only
T-GaugeTM
- individual layers
Two layer laminate withcloth reinforcement
No method to measuresecond layer thickness
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 30/38
Multilayer Screens
Screens display:
Total, Upper andLower Layers
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 31/38
Profiles of individual layers
Total Upper Lower
Web profile over 1 hour (approx 30 100 ft rolls)
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 32/38
Online Delamination Detection
Delamination can be detected even before it occurs
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 33/38
Total thickness cross direction
• Calibratedthickness41.87 mils
• Standard
deviation.0064
• Precision
.015 %
Cross Direction Distance (inches)
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 34/38
34
Control of OSB Density and Strength
Two channel measurement to provide polarization diversity
Matt Reid (UNBC/Deltech)
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 35/38
Paper coating pilot line
• Coat weight down to 1.5 lbs/ream measured
• Caliper thickness to .25 micron
Two channelcoat weightmeasurement
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 36/38
Organic coating on plastic
Coating thickness: 60 microns
Accuracy: better than 5%Web speed up to 1 m/sec
On a moving web
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 37/38
Coating profile on stationary plastic
Coating thickness: 5 micronsCalibration not dependent on the
index of refraction
Pulse timing accuracy:less than 1 fs for a 1 second avg(.2 microns)
8/14/2019 T44 - Applications of Modular Terahertz Instrumentation to Industrial Process Monitoring and Non-Destructive Evaluation
http://slidepdf.com/reader/full/t44-applications-of-modular-terahertz-instrumentation-to-industrial-process 38/38
Thank you
www.picometrix.comwww.advancedphotonix.com
David [email protected]: 734-864-5600