G - Physics – 01 – P
Patent
G - Physics
01
P
73/168, 354/32,
G01P 3/50 (2006.01) G01S 11/02 (2006.01)
Patent
CA 1179040
84/80 A b s t r a c t A device for the contact-less measuring of the velocity of and/or the distance covered by a vehicle (W) with the aid of three transmitters (F1, F2, F3; F?, F?, F?), arranged along and/or at the ends of a track (J), which generate two so-called standing waves running in opposite directions. These standing waves are detected and analysed by means of a measuring device (Q) which is located in a vehicle (W). The frequencies (f1, f2, f3) are different, frequency multi- pliers (M2, M3) being advantageously used in two transmitters (F2, F3; F?, F?). The method of measuring by means of this device makes it possible to detect the velocity and/or the distance covered much more accurately and is also suitable for vehicles without wheels, that is to say, for example, for suspension railways and air- cushion vehicles.
386843
Alan) Swabey & Co. Alan (swabey & Cie.
Limited Bbc Brown Boveri & Company
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