CH375938A - Dispositif pour détecter des véhicules dont la vitesse dépasse une valeur déterminée
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Dispositif pour détecter des véhicules dont la vitesse dépasse une valeur déterminée
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Publication number
CH375938A
CH375938ACH473461ACH473461ACH375938ACH 375938 ACH375938 ACH 375938ACH 473461 ACH473461 ACH 473461ACH 473461 ACH473461 ACH 473461ACH 375938 ACH375938 ACH 375938A
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Publication of CH375938ApublicationCriticalpatent/CH375938A/fr
G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
G—PHYSICS
G04—HOROLOGY
G04F—TIME-INTERVAL MEASURING
G04F10/00—Apparatus for measuring unknown time intervals by electric means
G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an AC
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
CH473461A1960-04-221961-04-21Dispositif pour détecter des véhicules dont la vitesse dépasse une valeur déterminée
CH375938A
(fr)