Abstract: Provided in a compact system is a rapid response h-q-T sensor assembly, with associated processor and holding device, for measuring temperature, T, and heat flux, q, in a severe operating environment. From measured temperatures, T, and heat flux, q, a stagnation point recovery temperature, Tr, and a heat transfer coefficient, h, may be calculated using approximation algorithms loaded in the processor. The system approximates the ideal conditions in which Tr is derived from measuring a high temperature, i.e., a zero heat flux path to ground, i.e., q=0, r=∞ and a lower wall temperature measured along an infinite heat flux path, i.e, q=∞, r=0. Although ideal conditions are not able to be duplicated, appropriate positioning of heat flux indicators and temperature indicators in the surface of a thin film on the q-h-T sensor assembly, while allowing for very short duration sampling in a hostile environment, permits a viable approximation.

Abstract: A substitute solid state device for safely initiating a sustainer motor is provided. The substitute device replaces a mechanism that is integral to a warhead. The substitute device interfaces to a telemetry package and is suitable for insertion into small housings. A specific embodiment is a substitute interface to a telemetry system incorporating a circuit for firing a sustainer motor of a small missile or rocket. The substitute interface replaces the interface and firing circuit associated with the warhead in a missile of 2.75-inch diameter, such as the STINGER missile.