Patents Assigned to Weiss Electronic Elektronische Regel - und Steuergerate GmbH
  • Patent number: 5621314
    Abstract: The invention relates to a method and a device for determining the speed s/.delta.t) of vehicles, in which with the aid of at least two sensors (1, 2, 27, 28) spaced apart from one another (distance s), the time .delta.t=t.sub.1 -t.sub.2 required to drive over both sensors (1, 2, 27, 28) is ascertained. The object of the invention is to disclose a speed measuring method that is simple to accomplish, with which accurate measurement values are ascertainable, and in which external factors of the pavement can largely be ignored. This is attained essentially by using induction loops, instead of the usual piezoresistive pressure sensors, as the measurement sensors (1, 2, 27, 28).
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: April 15, 1997
    Assignee: Weiss Electronic Elektronische Regel - und Steuergerate GmbH
    Inventors: Hans-Peter Beck, Heinz Thiel, Guido Luban