NASA NTRS · 19720000500
Indexing film with a fluidic sensor
Abstract
Fluidic sensor is used to measure passage of film without mechanical contact with counting device. Same sensor system may be used for different sizes of film. System has two fluidic sensors and operates on principle of electrically recording interruptions in air stream.
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Maciel, A., Jr.. 1972-08-01. Indexing film with a fluidic sensor. https://ntrs.nasa.gov/citations/19720000500
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