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: MMutton@imsysinc.comWebsite: 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

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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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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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t Flu

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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

Pressure vs. Stroke (inches)

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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

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Initial Slide Shock Absorbed

Ultrasonic Temperature and Heat Flux Sensor Technology

Mark J. Mutton BSEE

R & D Engineer

MMutton@imsysinc.com

Industrial Measurement Systems, Inc.2760 Beverly Dr. Aurora, IL 60504