Fluid handling – Flow affected by fluid contact – energy field or coanda effect – Responsive to condition external of system
Patent
1974-06-14
1976-10-19
Schwadron, Martin P.
Fluid handling
Flow affected by fluid contact, energy field or coanda effect
Responsive to condition external of system
137 85, 137486, 91384, G05B 1144, G05D 1600
Patent
active
039865266
ABSTRACT:
A train of fluid pulses representative of a process variable is processed by digital fluidic circuits and is then converted into an analog fluid pressure signal which is compared to an analog command signal, the difference between the two compared signals being caused to appear in the form of a displacement. This displacement is amplified by means of a fluid servo system, the amplified output of which is utilized for directly driving a control element for a process.
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Chang Robert C. C.
Scott William M.
Hess J. Edward
Johnson Donald R.
Miller Robert J.
Pack Gary V.
Schwadron Martin P.
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