Award Data

For this Phase I SBIR program, high volumetric efficiency, energy storage capacitors are proposed using phase change ceramics. These materials are nonlinear dielectrics that make use of electric field induced antiferroelectric to ferroelectric phase transition to store more energy per volume than is possible with linear dielectrics (10 J/cm3 compared to 2 J/cm3). Furthermore phase change materia ...

Electrical points-of-entry (POE) are one of the critical elements which comprise the shielded topology for C4I facilities. The quality of these POEs is critical for the maintenance of low-risk HEMP hardening. Of the POE treatments discussed in MIL-STD-188-125 and MIL-HDBK-423, power and communication/signal-line filters pose a distinct problem. The insertion loss of communication/signal-line fi ...

A GREAT DEAL OF EFFORT HAS BEEN SPENT IN RECENT YEARS TO DEVELOP STANDARDIZED METHODOLOGIES FOR ACCEPTING AND VERIFYING EMP HARDENED MILITARY FACILITIES. THE FIRST OF THESE STANDARDIZATION EFFORTS TO BE PUT INTO EFFECT APPLIES TO FIXED SITE, CRITICAL, TIME URGENT C4I FACILITIES. THE REQUIREMENTS EXISTS FOR AN ADVANCED INSTRUMENTATION APPROACH THAT CAN OVERCOME THE DIFFICULT ACQUISITION ENVIRONMENT ...

ONE COMMON NUCLEAR WEAPONS EFFECTS CIMULATION TECHNIQUE SIMULATES THE EMP RESPONSE OF LONG CABLES USING DIRECT CURRENT INJECTION. DIRECT CURRENT INJECTION TYPICALLY INVOLVES THE CONNECTION OF HIGH VOLTAGE PULSE SOURCES TO THE CABLES THAT ARE ATTACHED TO A MILITARY SYSTEM. A RECENTLY DEVELOPED MILITARY STANDARD SPECIFIES THAT DIRECT CURRENT INJECTION TESTING WILL BE USED IN CONJUNCTION WITH SEVERAL ...

A PROGRAM IS PROPOSED WHICH EXPLOITS HIGHLY EXOTHERMIC SOLID STATE REACTIONS IN AN EFFORT TO (A) ENHANCE LETHAILITY AND (B) STUDY TARGET MATERIAL(S) PERFORMANCE AND FAILURE MECHANISM(S) OF PENETRATION DURING HYPERVELOCITY IMPACT AND PENETRATION. THE EFFORT WILL INVOLVE HIGH DENSITY PELLETS OF METAL POWDERS CAPABLE OF SHOCK IGNITION AND RAPID EXOTHERMIC CONVERSION INTO INTERMETALLIC SOLIDS. TARGET ...

On-going developmental programs have produced munitions systems which are capable of penetrating and functioning within hardened fixed ground targets. They are equipped with high explosive and fragmenting warheads to achieve target defeat but in the process produce unaccceptable target venting and agent dispersal. The need exists for a warhead payload which can effectively defeat chemical and bi ...

The current distribution in plasma radiation sources is both a yardstick for measuring the coupling efficiency of the generator, and a means of studying the implosion dynamics of the load. Since the current distribution cannot be directly measured, it must be deduced from the magnetic field profile. Magnetic field distributions, based on the Faraday rotation of polarized laser light, are typical ...

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Survival of present day microelectronic circuits depends on their protection from self generated and external electromagnetic interference. This proposal is oriented toward the class of interference generally referred to as overvoltage transients. Means for mitigating these transients include gas discharge tubes, and various solid state devices. Each of these has their own advantages in particu ...

We propose to design a compact, multiple purpose electromagnetic sensor for monitoring the extremely low frequency (ELF), very low frequency (VLF), and low frequency (LF) spectrum. Our goal is to design a modular, low cost sensor capable of being configured for multiple applications and capable of being employed in remote, unattended sensor networks. We describe three applications or scenarios t ...