Optical Heat Flux and Recession Instrumentation for Solid Rocket Motor Nozzles (7124-530)
94-1 11.01 0003 A
Optical Heat Flux and Recession Instrumentation for Solid
Rocket Motor Nozzles (7124-530)
NASA and their contractors are currently limited in their
ability to perform the necessary internal diagnostics on solid
rocket motors (SRMs). Major improvements in nozzle and motor
case designs will be difficult without experimental methods to
verify the accuracy of current state-of-the-art combustion and
nozzle material response codes. Physical Sciences Inc. (PSI)
proposes an optical method for the measurement of the total
heat flux on interior nozzle surfaces and a technique for
determining nozzle material recession information during a
motor firing. The successful demonstration of these
measurements will provide a major improvement in NASA's
capabilities for quantifying the severe SRM nozzle thermal
environment and the nozzle response to that environment.
Future data of this type from full-scale instrumented motor
firings will be an important step toward improved management
of changes in nozzle designs and materials choices for NASA
and the U.S. rocket motor industry.
Following a successful demonstration and proof of this
technology, the proposed radiometers, optical access probes,
and proprietary software will be built as commercial
instruments, marketed, and sold to the rocket motor industry.
PSI's subsidiary, Environmental Instruments Corporation, will
manufacture this instrumentation as an addition to their
product line of specialty radiometric instruments.
Physical Sciences Inc.
20 New England Business Center
Andover, MA 01810-1077