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PARALLEL BINARY TORQUER FEASIBILITY STUDY.
HYDRAULIC RESEARCH AND MFG CO DIV OF BELL AEROSPACE CORP BURBANK CALIF
This document is a facsimile of a report describing a Parallel Binary Torquer feasibility study conducted at HR and M under Contract NO. N-1236053052063A. This parallel binary torquer is a DA mechanization intended for application in an electro-hydraulic servo valve. The DA mechanization which converts a parallel binary work into a proportional analog torque is accomplished by mechanically summing binary weighted torque levels. The binary weighted torque levels are derived from individual solenoids operated in full magnetic saturation. The mechanical summation is the result of utilizing a common single armature assembly for all solenoids. Feasibility of this DA mechanization was demonstrated by constructing and evaluating a 3 bit parallel binary torquer breadboard driving standard Hydraulic Research and Manufacturing hydraulic preamplifier and power stages. Recommendations are made for a followon program continuing the Research and Development R and D effort initiated under this feasibility study. The followon Research and Development program, as recommended, would utilize the design and developmental techniques formulated during the feasibility study and would result in a 7 bit parallel binary servo valve experimental model. Author
Contract rept. on Study of a digital/analog mechanization for application in an electro-hydraulic servo valve,