NASA NTRS · 19700000268
A long-lived precision switch actuator for controlling pump-piston action
Abstract
Switch mechanism limits the stroke of the piston by stopping the piston motor drive. This allows retention of a fluid sample in an automated wet-chemical analysis system.
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Davis, R. R.. 1970-07-01. A long-lived precision switch actuator for controlling pump-piston action. https://ntrs.nasa.gov/citations/19700000268
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