Ski speedometer

Details Ski speedometer Ski speedometer

1986-09-25

1988-02-02

Myracle, Jerry W.

Measuring and testing

Vibration

By mechanical waves

324160, G01N 2900

Patent

active

047222220

ABSTRACT:
A transducer is mounted on a ski and transmits ultrasonic waves toward the stationary medium over which the ski is moving. The same transducer or a separate transducer detects waves reflected from the stationary medium. A computer calculates the speed of the ski from the Doppler shift of the reflected waves and actuates a readout unit to indicate the speed to the skier.

REFERENCES:
patent: 3505878 (1970-04-01), Moll
patent: 3564488 (1971-02-01), Higashi et al.
patent: 4262537 (1981-04-01), Jander et al.
patent: 4546650 (1985-10-01), Cameron

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