Engineering topics
Publications and source records attributed to Engdahl, R. E..
Thermionic diode sensor is used as a pressure transducer in advanced space power systems using liquid metals as working and heat transfer media at temperatures up to 1800 deg F. The sensor converts the motion of a pressure actuated refractory alloy capsule into a suitable electrical output.
Ceramic insulated, swaged stainless steel, sheathed, protective atmosphere cable admits electrical leads into an 1800 deg F air-environment test chamber. The cable has some bending capability and provides for nine niobium alloy conductors. An argon purge during the TIG weld closure protects internal wires from oxidation and embrittlement.
Pressure transducer for measurements in liquid, vapor, and two-phase flow of potassium loop at high temperatures
Pressure transducers and measurement systems for closed cycle liquid metal facilities