Fluidic rotational speed sensor

Measuring and testing – Speed – velocity – or acceleration – Means integrating intermittent speed source impulses

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Details

73521, 73522, G01P 326

Patent

active

046025103

ABSTRACT:
A device for measuring the rotational speed of a rotating object in which a tream of fluid from a back pressure sensor is directed at a chopper wheel attached to the rotating object. The output of the back pressure sensor varies as the chopper wheel rotates. The number of variations in pressure per unit time is directly proportional to the rotational speed of the rotating object.

REFERENCES:
patent: 3392739 (1968-07-01), Taplin et al.
patent: 3587610 (1971-06-01), Langley
patent: 3754471 (1973-08-01), Hohenberg

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