PULSED POWER CONDITIONING FOR ELECTROMAGNETIC LAUNCHER SYSTEMS REQUIRES FAST-ACTING RHEOSTATS (MODULATORS) WITH ENOUGH THERMAL INERTIA TO ABSORB TENS OF MEGAJOULES ADIABATICALLY WITHIN MILLISECONDS, AND ENOUGH COOLING CAPABILITY TO DISSIPATE THE ABSORBED

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 2434
Amount: $49,991.00
Phase: Phase I
Program: SBIR
Awards Year: 1985
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Electromagnetic Launch Researc
625 Putnam Ave, Cambridge, MA, 02139
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 P MONGEAU/H KOLM
 (617) 661-5655
Business Contact
Phone: () -
Research Institution
N/A
Abstract
PULSED POWER CONDITIONING FOR ELECTROMAGNETIC LAUNCHER SYSTEMS REQUIRES FAST-ACTING RHEOSTATS (MODULATORS) WITH ENOUGH THERMAL INERTIA TO ABSORB TENS OF MEGAJOULES ADIABATICALLY WITHIN MILLISECONDS, AND ENOUGH COOLING CAPABILITY TO DISSIPATE THE ABSORBED ENERGY BETWEEN LAUNCHES. ONE UNEXPLORED CLASS OF DEVICES FOR ACCOMPLISHING THIS ARE MODERN VERSIONS OF THE CLASSIC CARBON PILE RHEOSTAT, IN WHICH THE BULK RESISTIVITY OF A LAMINATED OR SINTERED COMPOSITE IS MODULATED RAPIDLY BY THE APPLICATION OF PRESSURE. PHASE I WILL INVESTIGATE RESISTIVITY RANGES AND OPERATING TEMPERATURES ATTAINABLE WITH VARIOUS LAMINATED AND SINTERED COMPOSITES, AND PRACTICAL MEANS FOR MODULATING THE APPLIED PRESSURE MECHANICALLY, HYDRAULICALLY, PIEZOELECTRICALLY AND MAGNETOSTRICTIVELY. PHASE I WILL RESULT IN THE CONSTRUCTION AND TESTING OF A HYDRAULICALLY ACTUATED 1 MEGAWATT RHEOSTAT.

* information listed above is at the time of submission.

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