Apparatus for measuring speed

Details Apparatus for measuring speed Apparatus for measuring speed

1992-05-12

1994-04-26

Teska, Kevin J.

Boots, shoes, and leggings

G01P 336

Patent

active

053072936

ABSTRACT:
An apparatus for measuring speed with respect to an object comprises first to Nth sensors sensitive to energy received from first to Nth consecutive regions, respectively, of the object. Signal delay means are provided to delay the signals from the second to Nth sensors, the delay increasing with sensor number. A subtractor is provided to form the difference between the sum of the signals of the even-numbered sensors and the sum of the signals of the odd-numbered sensors.

REFERENCES:
patent: 4282511 (1981-08-01), Southgate
patent: 4659937 (1987-04-01), Cielo et al.
patent: 4923298 (1990-05-01), Dopheide et al.
patent: 4927263 (1990-05-01), de Groot et al.
patent: 5172000 (1992-12-01), Scheff et al.

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