Accession Number : AD0623961

Title :   PARALLEL BINARY TORQUER FEASIBILITY STUDY.

Descriptive Note : Contract rept. on Study of a digital/analog mechanization for application in an electro-hydraulic servo valve,

Corporate Author : HYDRAULIC RESEARCH AND MFG CO DIV OF BELL AEROSPACE CORP BURBANK CALIF

Personal Author(s) : Seidel,D. S.

Report Date : NOV 1965

Pagination or Media Count : 98

Abstract : This document is a facsimile of a report describing a 'Parallel Binary Torquer' feasibility study conducted at HR and M under Contract NO. N-123(60530)52063A. This 'parallel binary torquer' is a 'D/A' mechanization intended for application in an electro-hydraulic servo valve. The 'D/A' 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 'D/A' 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)

Descriptors :   (*SERVOMECHANISMS, VALVES), (*VALVES, SERVOMECHANISMS), DIGITAL TO ANALOG CONVERTERS, TORQUE, SOLENOIDS, ELECTROMAGNETS, ARMATURES, PREAMPLIFIERS

Subject Categories : Electrical and Electronic Equipment
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE