Portable Energetic Material Data Acquisition and Analysis System (PEMDAAS)
Abstract
An innovative Portable Energetic Material Data Acquisition and Analysis System (PEMDAAS) has been developed by Applied Research Associates personnel, while employed with the Denver Research Institute, for the Naval Surface Warfare Center (NSWC), Crane Division. This development provides the energetic material experimenter with an effective, economical, and modern-technology based system encompassing test set-up configuration, timing/firing, and data acquisition and analysis capability in one small, hardened, person-portable housing. The PEMDAAS provides signal conditioning and digitizing for piezoelectric, piezoresistive, fiber optic, temperature, voltage, and strain gage sensors. These sensor suites allow measurement of dynamic and quasi-static pressure, temperature, strain, velocity of detonation, and fragmentation velocity. This measurement capability enables the user to document and evaluate energetic material performance including free-field explosive detonations, ballistic tests, internal explosion effects, IM2105 test measurements of sympathetic detonations, slow/fast cook-offs, bullet/fragment impact tests, and other dynamic and quasi-static measurements unique to the test-and-evaluation community. PEMDAAS hardware includes a high speed timer and sequencer (for correlation of data acquisition to an event time zero), signal conditioning units, high-speed 8 to 12 bit analog-to-digital converters, and a detonator firing controller interfaced to a remotely located, up to 5000 feet, capacitor discharge firing unit which minimizes the detrimental effects of long cable lines on the firing discharge characteristics. Safety interlocks and procedures are designed into the PEMDAAS to meet explosive test site procedures and requirements. Uninterruptible Power Supply (UPS) and power conditioning ensure system operation in electrical noisy and deficient environments. Software capability includes test configuration, system control, and data analysis.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 21, 1996
- Accession Number
- ADA498165
Entities
People
- Larry L. Brown
- Robert Lynch
- Tim Samaras
Organizations
- Applied Research Associates (United States)