TY  - RPRT
TI  - Optical Shaft-Angle Encoder For Helicopter Rotor
AU  - Golub, Robert A.
AU  - Fitzpatrick, Fred
AU  - Dennis, Dale V.
AU  - Taylor, Bryant D.
PY  - 1993
UR  - https://ntrs.nasa.gov/citations/19930000286
ID  - 19930000286
ER  -