HIGH FREQUENCY AIRBLAST PRESSURE SENSOR FOR UGT MEASUREMENTS

Award Information
Agency: Department of Defense
Branch: Defense Threat Reduction Agency
Contract: N/A
Agency Tracking Number: 15354
Amount: $527,257.00
Phase: Phase II
Program: SBIR
Awards Year: 1993
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Geo-gentersinc
7 Wells Avenue, Newton Centre, MA, 02159
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Bruce N Nelson
 Principal Investigator
 (617) 964-7070
Business Contact
Phone: () -
Research Institution
N/A
Abstract
CONVENTIONAL INSTRUMENTATION FOR AIRBLAST PRESSURE MEASUREMENTS IN CAVITY SHOTS IS LIMITED IN RISE TIME CAPABILITY. THIS RESULTS IN THE INSTRUMENTATION PROVIDING AN INCORRECT INDICATION OF PEAK PRESSURE, WHICH CREATES DISTORTION IN GENERATED HEIGHT-OF-BURST CURVES. THE DEVELOPMENT OF A FIBER OPTIC AIRBLAST PRESSURE SENSOR BASED ON THE PHOTOELASTIC EFFECT IS PROPOSED. THIS TECHNIQUE PROMISES TO PROVIDE AIRBLAST PRESSURE SENSORS WITH PEAK PRESSURE MEASUREMENT CAPABILITY TO AS HIGH AS 20 KBAR WITH A SUB-MICROSECOND RISE TIME CAPABILITY. THIS WOULD OFFER A SIGNIFICANT IMPROVEMENT TO AIRBLAST PRESSURE MEASUREMENTS ON CAVITY SHOTS. THE PROPOSED MEASUREMENT TECHNIQUE HAS BEEN SUCCESSFULLY UTILIZED ON UNDERGROUND TESTS. ON DISKO ELM THE OUTPUT DETECTION SCHEME THAT WILL BE USED WITH THESE SENSORS DEMONSTRATED THE MEASUREMENT CAPABILITIES THAT WILL BE ACHIEVED IN THE AIRBLAST PRESSURE SENSORS.

* information listed above is at the time of submission.

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