Vector measuring current meter

Details Vector measuring current meter Vector measuring current meter

1978-03-01

1979-05-08

Myracle, Jerry W.

Measuring and testing

Navigation

Leeway incidence or side-slip

G01W 102

Patent

active

041529340

ABSTRACT:
The present meter is characterized by its very accurate cosine response to urrent vector components of fluid (air or water) velocity parallel to the rotational axes of its propeller-like flow sensors. Structurally, it employs two flow sensors rotatably mounted on a rod or `sting` carried by a casing. Each sensor includes a pair of back-to-back propellers or fans mounted on a single axial shaft rotatably supported by the rod. The rotational axes of the two flow sensors are normal one to the other and also normal to the axis of the rod. Rotation of the fans activates a switch-like arrangement electrically coupled to an up-down counter carried in the casing. Blade rotation in one direction yields an `up` count and vice versa.

REFERENCES:
patent: 3610039 (1971-10-01), Althouse et al.
patent: 4031755 (1977-06-01), Ravussin

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