sensors technologies transfer from aerospace to civil ... · dr. ing. carmine salzano slide 1...
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Dr. Ing. Carmine SalzanoSlide 1
Sensors Technologies transfer Sensors Technologies transfer from aerospace to civil from aerospace to civil structures monitoringstructures monitoring
IngIng. Carmine Salzano. Carmine SalzanoInternational Aerospace Defense ManagerInternational Aerospace Defense Manager
PCB Piezotronics Inc.PCB Piezotronics Inc.
[email protected]@pcb.com +39 333 765 4405+39 333 765 4405
Dr. Ing. Carmine SalzanoSlide 2
Sensors technologies Sensors technologies -- AgendaAgendao Aerospace key issueso testing technologieso monitoring technologies
o From Aerospace & Defense:o Test&Measurement: GVT , (FTI)o Monitoring:
o Humso EVMo AVC
↓o To Civil Structure Testing & Monitoring:
o Test: Dynamic test on structureso Monitoring: early warning
RDTE & MRDTE & M
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Technologies for vibration Technologies for vibration sensors: accelerometerssensors: accelerometers
o PE (Piezoelectric):o chargeo ICP
o Capacitive /VC /DC/Memso PRo Future or today :
o wireless solution??o Fiber optics??o Others??
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GVT: Some of typical application/tests GVT: Some of typical application/tests
A&D : A&D : The world of TestingThe world of Testing
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Shuttle GVT and Flight test exampleShuttle GVT and Flight test example
NASA Kennedy Space Center, Florida Shuttle Modal Inspection System
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Loading Location Data into Loading Location Data into TEDSTEDS
If you’re setting up a modal test and you have 128 accelerometers, how do you load location details for each sensor into TEDS?
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What Data is Contained in TEDS What Data is Contained in TEDS ??
PERMANENT MEMORY (ROM)
• Manufacturer
• Model Number
• Serial Number
• Date Manufactured
• Type Number
PROGRAMMABLE MEMORY (EEPROM)
Calibration Data
• Sensitivity
• Units
• Reference Frequency
• Calibration Date
OTHER INFORMATION
User Defined
• Sensor location, etc.
• The chip contains three areas of memory
• The first is burnt into memory at manufacture
• The second can be modified at calibration
• The third has very limited capacity and can be written to by the user.
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Civil Structures : The world of TestingCivil Structures : The world of Testing
Sensor’s Technologies:
• Seismic piezoelectric accelerometers •Capacitive Mems-DC accelerometers
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Modally Tuned ICP Modally Tuned ICP ®®
Impulse HammersImpulse Hammers
Heavier Structures
Lighter Structures
Model Frequency/output Applications
086D80 mini 20 kHz, 100 mV/lb Disk drives, circuit boards, turbine blades, disk brakes
086D01 light 9500 Hz, 50 mV/lb Lightly Damped panels and frames
086D02 086D03086D04
8000 Hz, 50 mV/lb8000 Hz, 10 mV/lb8000 Hz, 5 mV/lb
Car Frames, engine components, machine parts
086D05 1-lb(0.45 kg)
5000 Hz, 1 mV/lb Light trucks, machine tools, pumps
086D20 3-lb(1.36 kg)
1000 Hz, 1 mV/lb Tool/turbine, foundations, footbridges
086D50 12-lb(5.44kg)
750 Hz, 1 mV/lb, Foundations, locomotives, ships, buildings, bridges
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Capacitive MemsCapacitive Mems
Silicon Sensors
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Dynamic Strain Dynamic Strain Sensor requirement:
– Low cost– Easy to mount– Reusable– Robust & hermetically
sealed– Wide frequency range– Wide temperature range– High sensitivity– Light weight and small
(flat)– Standard output (ICP?) for
conditioning & acquisition purpose
Sensitivity: 50 mV/µεMeasurement range: 100 pk µεFrequency range: 0,5 Hz to 100 KHzBroadband resolution (1 to 10KHz): 0.6 nεTemperature range: -54°C to 121 °CSize (Width x Length x Height) :5.1 mm x 15.2 mm x 1.8 mm
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OEM Seismic Monitoring AccelerometersHigh Sensitivity Extremely Low Noise Floor Low Frequency Response Piezoelectric Ceramic Based Shear Construction Broad Operating Temperature High Shock Durability Low Cost For OEM Applications Options Include High Temperature Operation and Low Power Consumption.
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More to readMore to read……....Some REFERENCES
[1] Salzano C. , Hums for your supper – Aerospace Testing International (Magazine), 2006.[2] Salzano C, Calabrò A., Take the strain, Aerospace Testing International (Magazine), 2007.[3] Salzano C, Hums accelerometers, Australian Aerospace Congress, Melbourne, 2007[4] Powell C., Vibration Troubleshooting with piezoelectric strain gages, Sound & Vibration Magazine, 2007[5] Salzano C, A Hums approach, Instrumentation (Magazine), 2008.[6] Quaranta V., Dimino I., Salzano C., Dynamic sensors and measurements for Structural Health Monitoring of aeronautic structures, Aerospace Testing International (Magazine), to be published, 2008.