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The Quatrix--A Proposed Electrooptical Position or Angle Sensor

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1 Author(s)
Askowith, B. ; Martin Marietta Corp., Orlando, Fla.

This technique, called quatrix (for quasi-matrix), has potential application in numerous communication and datahandling areas, since it provides high-density matrix-photocell capability at much lower cost. The method uses a few photographically-produced precision coding masks fitted over an equal number (N) of photocells. Thus, ten (N) typical high-detectivity photocells and ten coding masks will produce 210(2N) binary combinations, behaving like a 32 by 32 matrix photodetector and using only 10 preamps. Twenty larger cells and preamps promise a million element matrix. Limitations are discussed.

Published in:

Communication Technology, IEEE Transactions on  (Volume:15 ,  Issue: 6 )

Date of Publication:

December 1967

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