Solid propellant stress transducer evaluation

Cantilever-beam and diaphragm-type transducer data show that the semiconductor strain gage transducers currently manufactured by Senso-Metrics for CSD have the capability for 1% or better long time zero offset stability in a solid propellant environment. Testing of various transducer designs has shown that the chemical seals provided by electron beam welding and glass-to-metal headers are adequate for the corrosive environment of a typical solid propellant.