Engineering topics

Hill, A. J.

Publications and source records attributed to Hill, A. J..

2 records

NASA NTRS1987

Wet Winding Improves Coil Encapsulation

Wet-winding process encapsulates electrical coils more uniformily than conventional processes. Process requires no vacuum pump and adapts easily to existing winding machines. Encapsulant applied to each layer of wire as soon as added to coil. Wet-winding process eliminates voids, giving more uniformly encapsulated coil.

Hill, A. J.↗

NASA NTRS1986

Shaft Axial-Displacement Sensor

Shaft-speed sensor on turbopump readily adapted to indicate shaft axial displacement as well as rotational speed. Adaptation makes it unnecessary to install separate displacement sensor, which requires additional access port on pump. Combined speed/displacement sensor used for performance analysis and for pump control.

Hill, A. J.↗