NASA NTRS · 19690000050
Flow angle sensor and readout system
Abstract
Sensor determines fluid flow angles by means of a simple vane that positions itself in the direction of the flow. The vane rotates a small light-reflecting disc as it moves while the readout system uses two cyclically polarized light beams.
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Hansen, I. G., Peterson, V. S.. 1969-02-01. Flow angle sensor and readout system. https://ntrs.nasa.gov/citations/19690000050
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