Ultrasonic Temperature and Heat Flux Sensor Technology
Industrial Measurement Systems, Inc.2760 Beverly DriveAurora, IL 60502
Presentation By: Mark J. Mutton BSEEPhone: (630) 236-5901Email: [email protected]: http://www.imsysinc.com
Co-Authors: Donald E. Yuhas PhDD. Greg Walker PhD
Peter L. Schmidt PhD
Problem Statement
Auto ignition or “cook-off”is one of the most serious safety concerns when firing large caliber guns. Researchers inability to perform measurements at locations where they are needed
Measurement Concept TemperaturePrecise Timing Measurements to Measure Temperature & Erosion
Echoes from Rifled Section
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plitu
de (V
olts
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Determining Inner Chamber Surface Temperature
Change of Echo Separation (Velocity Temperature Coefficient) X (Echo Separation)
Mark 45 MOD 4 Live Fire Trials
Multiple Successful Live Fire Trials
NETS (NON-Intrusive Erosion and Temperature Sensor) prototype installed on the MK45 MOD 4 Gun at NSWCDD for several live fire experiments in 2005-2006
•Accurate Internal Temperature Measurement
•Transient Temperature Measurement
•Off-line Heat Flux Calculations
Precise Internal Temperature Measurement
Ultrasonic Temperature for Three Firings of Mark 45 Mod 4 Normalized to 70 degrees Fahrenheit.
(Black Squares are Thermocouple based modeled data provided by NSWCDD)
Transient Temperature Measurement
Technology offers the potential for temperature measurement on amicrosecond timeframe.
(Ultrasonic Temperature data collect every 200 usec.)
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Save Time (seconds) ---->
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Mark 45 MOD 4 Rifled Region Temp Three Rounds Normalized to 70 degrees
Rifled Region Temp First FiringRifled Region Temp Second Firing.Rifled Region Temp Third Firing
Measurement Concept for Heat Flux:
Inverse Solution
Off-line Heat Flux Calculations
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15 x 107
Time (s)
Hea
t Flu
x (W
/m2 )
Ultrasonic based Heat Flux determination at the Gun Bore Interface overA period of 1.5 seconds
3Measurement Possibilities for the Ultrasonic Temperature and Heat Flux Sensor
Gun Temperature
Gun Erosion
Transient Temperature
Non-Intrusive Direct Measurment
At Sea MeasurementContinuously Monitor
Non-Intrusive High Speed Measurements
Increased Gun Safety
Tactical and Safety
Barrel Coatings/ Propellants
Combustion Instability
Heat FluxNon-Intrusive High Speed Response
Barrel Coatings/ Propellants
Gun Research
Features, Advantages, and Benefit of the Ultrasonic Technology
Opportunities for the Ultrasonic Temperature and Heat Flux Sensor
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Gun Safety• 5”/62 MK 45 MOD 4 gun
• BOFORS MK 110 57mm gun US Coast Guard & Navy
• Lightweight Howitzer (JLWH) 155mm Program
Research• 155mm Advanced Gun System for DD(X)
• US Army Benet Laboratory Gun
• Barrel Coating & Munitions Research
• Combustion Chamber Instabilities
• Insulating And Metallic Aeroshells
ACCOMPLISHMENTS:• DEVELOPED concept of a sound sensor for temperature and
heat flux algorithms • IMPLEMENTED in both lab and live fire environments• DISCOVERED transient temperature/heat flux measurements • INCORPORATED PXI Platform for real-time system• ACCELERATED development to capitalize on field testing
NEXT STEP:• Ruggedness for safety application• Explore transient measurement applications• Partner for combustion engine and aerospace applications • Field Testing Field
State of Development for the Ultrasonic Temperature and Heat Flux Sensor
The Great American “sound and temperature” Road Show
Deploy solutions at various research facilities
Success in these ventures will give us a good baselineto build a market as well as validate our technology
We are very confident in our technology, but have limited contacts to deploy and test.
Non-destructive nature of the measurements allows for easyimplementation without disruption to ongoing tests.
Thanks For Listening! Force Modulator Test In 300-Ton Clearing Press
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Cylinder #1 High Pressure Chamber
Cylinder #2 High Pressure Chamber
Slide Contacts Binder Ring
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Press Bottom Dead
Center, Return Delay
Predetermined By
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Tighter Mfg. Tolerance
Will Reduce Fluctuation
Initial Slide Shock Absorbed
Ultrasonic Temperature and Heat Flux Sensor Technology
Mark J. Mutton BSEE
R & D Engineer
Industrial Measurement Systems, Inc.2760 Beverly Dr. Aurora, IL 60504