Directed Energy Test Science and Technology HPM Sensor … · Directed Energy Test Science and...
Transcript of Directed Energy Test Science and Technology HPM Sensor … · Directed Energy Test Science and...
Directed Energy Test Science and Technology HPM Sensor Program
2011 Annual ITEA Technology ReviewAnnapolis, Maryland
July 19, 2011
Jeff SchleherDET S&T Subject Matter [email protected]
Dan TreibelDET S&T Subject Matter [email protected]
Distribution Statement A: Approved for public release; distribution is unlimited.
Topics
• HPM Sensor Requirements• DET S&T Sensors – Why they Meet the Needs• Sensor Test Activities• Other Test range Applications• Conclusions
Distribution Statement A: Approved for public release; distribution is unlimited.
What is High Power Microwave
• High Peak Power Generally Low Average Power– Giga Watts Peak – Watts Average
• Very Fast Rise Time – Narrow Pulses – Low Repetition Rate– Pico-seconds - <100 ns – 1 to 1000 ppm
• Frequency– 50 MHz to 100 GHz
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Tri-Service Study
• Joint Service HPM System Test Concepts– Test Parameters Required to Execute Test Concepts
• Service Workshops for Test Range, Laboratory, and Program Office Personnel to Validate/Correct Test Concepts
• Capability Call to Ranges to Support Test Concepts– Survey of test range HPM test capability
• Test Shortfalls Identified– Divided into development or Science & Technology required
• Shortfalls Approved by Government Oversight
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DE T&E Shortfall Resolution
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DETEC Tri-Service Study
DE Stakeholders:• MRTFB/DoD Labs• Weapon Sys Dev• Industry/Academia• Intel Community
DETEC Domain
ENGR DEV
TECH ADV
AoA Candidates
FUTURE DEV
Tech Enablers
DET S&TDomain
DE T&ECapabilities
Risk Reduction/P3I
DET S&T WGDETEC IPT
Strategic Plan for DoDT&EResources
AoA – Analysis of AlternativesMRTFB – Major Range & Test Facility BaseP3I – Pre-planned Product Improvement
DE Weapons/Threats
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Where to Measure HPM
Source Propagation Medium Target Platform Target Electronics
Type 1SurfaceMine
Type 2BuriedMines
Type 3SurfaceMine
IEDs on Guard Rail
IED Between 2Metal Sheet CM
IED Controller
Type 1Surface Mine
Daisy ChainIEDs
Ground Effects
Threat TestingMIL STD 464C
InternalMeasurements
Ground Effects
IEMS
APOS
APOS
IEMS
IEMS
APOS
Over Head Attack
C-IED, C-Mine Testing
Power- Platform -Test Source
CTAS
Safety
APOSIEMS
APOSIEMS
IEMS
APOS
C-IED
ClaymoreMine IED
Type 3Mine IED
Type 3BuriedMine
Metal SheetCar Simulation
Weapon System Test EOS
Near FieldAPOS
VoltagePotentialNeeded
Current SensorNeeded
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DET S&T Sensor Technology Programs
• E-Field EO Sensors– EO Crystals Pockel Effect– Tailored EO Polymers
Pockel Effect– EO Crystals Kerr Effect
• H-Field MO Sensors– MO Crystals Faraday Effect
• Current Sensors– No current project – Broad
Area Announcement• Voltage Potential
– No current project
• E-Field Crystal– Electro-Optical Sensor Technology
(EOST)– Compact Three Axis Sensor (CTAS)– Integrated Electro-Magneto-optic Sensor
(IEMS)• E-Field Polymer
– Dielectric Electromagnetic Field Probes (DEFP)
– Advanced Polymer Optical Sensors (APOS)
• Magnetic Sensors– Magnetic Optical Field Sensors (MOFS)– Integrated Electro-Magneto-optic Sensor– Spectrographic Magnetic Field Sensor
(SMFS)– Advanced Polymer Optical Sensors
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DET S&T Sensors for HPM
NRL E- and H-fieldIntegrated Electro-Magneto-optic Sensor
(IEMS)
IPITEK/BYU/ Univ. of WashingtonAdvanced Polymer Optical Sensors
(APOS)
Crystal and PolymerSlab Coupled Optical Sensor (SCOC)
Intended for electronics boards in single axis format
Sensor
Sensor
Single Axis MO sensortested at White Sands
4-axis sensor3-axis E-field1-axis H=field
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Characteristics of Sensors
• Direct Measure of E and H-Field• Non-intrusive (< 1% demonstrated in laboratory)• Small to Very Small Foot Print (cm to mm)• Three Axis• Sensitive• Survive to 3MV/m (air breakdown)• Wide Band Width
– 1MHz – 12 GHz demonstrated /NIST validated– < 1kHz to 100 GHz theoretical (different crystals)
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NIST Certification
• Electro-Optical Sensor Technology (EOST)• Single Access EO Transmission Sensor (Pockel Effect)• First DET S&T sensor project• Field Tested at Dahlgren • Started as LiNbO3 changed to KD*P – greater sensitivity• Validated at National Institute of Science and Technology (NIST)• Uncertain where Prototype went• PAX River has one• NRL HPM has one
NIST Tested 1 MHz to 10 GHz
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Field Testing Non-Intrusive Sensors
NRL 4-AxisSensor TestingNarrow Band At PAX River
IPITEK APOSSensor TestingNarrow BandAnd Wide Band At White SandsHigh Power Test Site
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Sensor Progress
IEMSComplete
APOSIn progress
MOFSComplete
Tested at PAX River NIST Review (1MHz – 10 GHz)
Tested in Railgun @ GTRI SCOS Lab Test Results
Brass Board Lab Tested FO Calibration Cables a Problem
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E3 Testing>3 GHz
HEMPTesting
<100kHz
Micro-Antenna
Characterization2.3GHz
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Wider Sensor Range Application
• High Altitude Electromagnetic Pulse Testing– MIL-STD 188-125– Like HPM – Lower Frequencies, Longer Pulses
• Electronic Warfare• Electromagnetic Environmental Effects
– Wider Bandwidth – Lower Power – Radar Like Pulses
• Spectrum Management– Conventional Equipment – Averaging– Typically Non-directional
• Other Application
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High Altitude Electromagnetic Pulse Testing
Satellite Communications Trailer Shielding Effectiveness
Continuous Wave Immersion
Pulse Testing
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MIL STD 188-125 Testing
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Electromagnetic Warfare Testing
CREW Jammer Iraq Test Shortfalls• Energy does not always
reach target receivers• Ground Effects and
Urban Structures Part of Cause
• Conventional Sensor don’t work well close to ground or conductive objects
• DET S&T Non-intrusive sensors do!
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Electromagnetic EnvironmentalEffects Testing
E3 Testing• MIL STD 464C now includes HPM
Testing Methods– Expanded on MIL STD 464A
• MIL STD 464A RF Impact on Systems
– Ordinance (HERO)– Fuels (HERF)– Personnel (HERP)– High Altitude Nuclear Pulse (HEMP)– Electronics
• And:– Lightning– Precipitation Static
MIL STD 464C Testing
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D-dotProbe
Side lobesWidebandThreatSystems
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Range Spectrum Management
Conventional Averaging Sensors DET ST 3-Axis Sensors
Time Domain Data DetectedRise Times to 6-ps DemonstratedImpulse waveforms < 5ns Demonstrated
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CTAS Tested with 3-axis AR sensorAt PAX River
5.5 turns
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Conclusions
• DET S&T E and H-Field Sensors Are Developed for Range Testing of High Powered Microwave Systems– Starting work on non-intrusive current and voltage potential
sensors
• DET S&T E and H-Field sensor prototypes proven at ranges and measured by NIST
• These Sensors Could Serve a Wide Selection of Test Uses out side HPM– High altitude Electromagnetic Pulse– Electronic Warfare– Electromagnetic Environmental Effects– Spectrum Management
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Back-up Slides
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Questions?
The very first "senior moment".....
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