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Method for dimensional weighing utilizing point determination

  • US 5,808,912 A
  • Filed: 12/31/1996
  • Issued: 09/15/1998
  • Est. Priority Date: 12/31/1996
  • Status: Expired due to Fees
First Claim
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1. A method for measuring the dimensions of a parcel, comprising the steps of:

  • (a) placing a parcel on a flat surface, in a predetermined position, within a field of measurement, said field of measurement comprising a first known spatial relationship;

    (b) positioning an ultrasonic emitter at an outermost corner of said parcel wherein a plurality of parcel axes terminates at said outermost comer;

    (c) positioning a plurality of ultrasonic sensors on said parcel such that;

    a first of said plurality of sensors is placed at the end of a first line formed by said parcel along a first axis from said outermost corner;

    a second of said plurality of sensors is placed at the end of a second line formed by said parcel along a second axis from said outermost corner; and

    , a third of said plurality of sensors is placed at the end of a third line formed by said parcel along a third axis from said outermost corner;

    (d) transmitting a pulse from said ultrasonic emitter to said plurality of ultrasonic sensors;

    (e) measuring each of said lines formed along each of said axes by determining for each of said lines a length of time from emission of said pulse by said emitter to reception of said pulse by a corresponding sensor placed along each of said lines; and

    (f) converting said length of time into a distance by utilizing a predetermined index of measurement.

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