Measuring and testing – Vibration – By mechanical waves
Patent
1996-05-28
1999-06-29
Brock, Michael
Measuring and testing
Vibration
By mechanical waves
7386128, G01N 2902
Patent
active
059182814
ABSTRACT:
The speed of an object is measured using a device which includes a transmitter spaced a predetermined distance from a receiver. A first sound wave is propagated through air with a first velocity, typically zero velocity. A second sound wave is propagated through air, the air having a second velocity which approximately equals the air speed of the object. The difference in time between the two sound waves reaching the receiver is measured and used to calculate the air speed of the object, which is then displayed to the user. The device is readily mounted on a pair of glasses wherein the user can read the displayed air speed without involving the user's hands.
REFERENCES:
patent: 3898878 (1975-08-01), Stallworth et al.
patent: 4011753 (1977-03-01), Hausler
patent: 4028938 (1977-06-01), Eck
patent: 4337667 (1982-07-01), Takada
patent: 4372166 (1983-02-01), Loveland
patent: 4483202 (1984-11-01), Ogura et al.
patent: 4488428 (1984-12-01), Taniuchi
patent: 4506353 (1985-03-01), Rott et al.
patent: 4633719 (1987-01-01), Vander Heyden
patent: 4685093 (1987-08-01), Gill
patent: 4728954 (1988-03-01), Phelan et al.
patent: 4757714 (1988-07-01), Purdy et al.
patent: 4860593 (1989-08-01), de Concini et al.
patent: 4885942 (1989-12-01), Magori
patent: 4914638 (1990-04-01), Milner
Ashraf Nashmiya
Brock Michael
Hodgson Serge J.
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